Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List Greater Sage-Grouse (Centrocercus urophasianus) as an Endangered or Threatened Species, 59857-59942 [2015-24292]
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Vol. 80
Friday,
No. 191
October 2, 2015
Part II
Department of the Interior
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Fish and Wildlife Service
50 CFR Part 17
Endangered and Threatened Wildlife and Plants; 12-Month Finding on a
Petition To List Greater Sage-Grouse (Centrocercus urophasianus) as an
Endangered or Threatened Species; Proposed Rule
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Federal Register / Vol. 80, No. 191 / Friday, October 2, 2015 / Proposed Rules
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS–R6–ES–2015–0146];
[4500030113]
Endangered and Threatened Wildlife
and Plants; 12-Month Finding on a
Petition To List Greater Sage-Grouse
(Centrocercus urophasianus) as an
Endangered or Threatened Species
Fish and Wildlife Service,
Interior.
ACTION: Notice of 12-month petition
finding.
AGENCY:
We, the U.S. Fish and
Wildlife Service (Service), announce a
12-month finding on petitions to list the
greater sage-grouse (Centrocercus
urophasianus), both rangewide and the
Columbia Basin population, as an
endangered or threatened species under
the Endangered Species Act of 1973, as
amended (Act). After review of the best
available scientific and commercial
information, we find that the Columbia
Basin population does not qualify as a
distinct population segment. In
addition, we find that listing the greater
sage-grouse is not warranted at this
time. However, we ask the public to
submit to us any new information that
becomes available concerning the
threats to the greater sage-grouse or its
habitat at any time.
DATES: The finding announced in this
document was made on October 2, 2015.
ADDRESSES: This finding is available on
the Internet at https://
www.regulations.gov at Docket Number
FWS–R6–ES–2015–0146. Supporting
documentation we used in preparing
this finding is available for public
inspection, by appointment, during
normal business hours at the U.S. Fish
and Wildlife Service, Mountain-Prairie
Regional Office, 134 Union Blvd.,
Lakewood, CO 80228. Please submit any
new information, materials, or questions
concerning this finding to the U.S. Fish
and Wildlife Service, Mountain-Prairie
Regional Office, P.O. Box 25486, DFC,
Mailstop 60120, Denver, CO 80225.
FOR FURTHER INFORMATION CONTACT:
Michael Thabault, 303–236–9779.
SUPPLEMENTARY INFORMATION:
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SUMMARY:
Executive Summary
Why we need to publish this
document. Under the Endangered
Species Act (hereafter, Act), a species
may warrant protection through listing
if it is endangered or threatened
throughout all or a significant portion of
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its range. We issued a 12-month finding
that greater sage-grouse was warranted
for listing in 2010 (75 FR 13910, March
23, 2010). However, since that time,
new information about the status of the
species, potential threats, regulatory
mechanisms, and conservation efforts
indicates that listing is not warranted.
The basis for our action. Under the
Act, we can determine that a species is
an endangered or threatened species
based on any of five factors: (A) The
present or threatened destruction,
modification, or curtailment of its
habitat or range; (B) overutilization for
commercial, recreational, scientific, or
educational purposes; (C) disease or
predation; (D) the inadequacy of
existing regulatory mechanisms; or (E)
other natural or manmade factors
affecting its continued existence. Based
on new information about these factors
and the adequacy of regulatory
mechanisms and conservation efforts in
managing them, we have determined
that the greater sage-grouse is not in
danger of extinction now or in the
foreseeable future throughout all or a
significant portion of its range and that
listing the species is no longer
warranted.
Based on the best available scientific
and commercial information, we have
determined that the primary threats to
greater sage-grouse have been
ameliorated by conservation efforts
implemented by Federal, State, and
private landowners. In 2010, we
identified habitat loss, fragmentation,
and inadequacy of existing regulatory
mechanisms as factors leading to a
warranted determination. Since that
time, regulatory mechanisms through
Federal and three State plans that
incorporate conservation principles
identified by the scientific experts have
substantially reduced these risks in
approximately 90 percent of the
breeding habitat through avoidance and
minimization measures. Advancements
in oil and gas technologies have reduced
the anticipated footprint of future
development; the future conversion of
sagebrush habitats to agriculture is
unlikely to impact greater sage-grouse
because high densities of breeding sagegrouse do not occur in habitats that are
suitable for agriculture; and renewable
energy development, although still a
potential, is unlikely to occur in areas
where greater sage-grouse occur in the
highest densities. Fire and invasive
species continue to occur in greater
sage-grouse habitats, especially in the
Great Basin, but existing management
and commitments for suppression,
restoration, and noxious weed
treatments are reducing that impact.
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Rangewide, a number of relatively
large greater sage-grouse populations
continue to be distributed across the
landscape and are supported by
undisturbed expanses of habitat. Some
habitat loss associated with energy
development, infrastructure, wildfire,
and invasive plants will continue into
the future. However, regulatory
mechanisms provided by Federal and
three State plans reduce threats on
approximately 90 percent of the
breeding habitat across the species’
range.
Acronyms Used in This Document
We use many acronyms throughout
this document. To assist the reader, we
provide a list of the most frequently
used acronyms here for easy reference:
AML Appropriate Management Level
AUM Animal Unit Months
BLM Bureau of Land Management
BSU Biologically Significant Unit
CCA Candidate Conservation Agreement
CCAA Candidate Conservation Agreement
with Assurances
CED Conservation Efforts Database
CFR Code of Federal Regulations
CNRMP Cultural and Natural Resource
Management Plan
COT Conservation Objectives Team
CRP Conservation Reserve Program
DoD U.S. Department of Defense
DOE Department of Energy
DOI U.S. Department of the Interior
DPS Distinct Population Segment
EIS Environmental Impact Statement
FIAT Fire and Invasives Assessment Tool
FLPMA Federal Land Policy and
Management Act of 1976
FR Federal Register
GHMA General Habitat Management Area
GIS Geographic Information System
HMA Herd Management Areas
HMAP Herd Management Area Plan
INRMP Integrated Natural Resources
Management Plan
LHS Land Health Standards
MZ Management Zone
NEPA National Environmental Policy Act
NFMA National Forest Management Act
NRCS Natural Resources Conservation
Service
NSO No Surface Occupancy
NWR National Wildlife Refuge
PACs Priority Areas for Conservation
PHMA Priority Habitat Management Areas
RDF Required Design Features
ROW Right-of-Way
RFPA Rangeland Fire Protection
Associations
SARA Canada’s Species at Risk Act
SFA Sagebrush Focal Areas
SGI Sage Grouse Initiative
SGMAs Sage-grouse Management Areas
SGPA Sage-grouse Protection Area
SPR Significant portion of the range
USDA U.S. Department of Agriculture
USFS U.S. Forest Service
USGS U.S. Geological Survey
WAFWA Western Association of Fish and
Wildlife Agencies
WNv West Nile virus
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YTC Joint Base Lewis-McChord Yakima
Training Center
Overview of Sections
The following is an outline of the
major sections included in this
document:
• Background
Æ Previous Federal Actions
• Species Information
Æ Bi-State Distinct Population Segment
Æ Columbia Basin Population
Æ Greater Sage-grouse Listable Entity
Summary
• Distribution
• Habitat
• Life-History Characteristics and Seasonal
Habitat Selection
• Sage-grouse Connectivity and Landscape
Genetics
• Population Abundance and Trends
Æ Abundance and Distribution Models
Æ Population Abundance and Trends
Summary
• Changes Since the 2010 Finding
Æ New Scientific Information
Æ Sagebrush Landscape Conservation
Planning
Æ Summary of New Information Since
2010
• Summary of Information Pertaining to the
Five Factors
Æ Habitat Fragmentation
Æ Nonrenewable Energy Development
Æ Infrastructure
Æ Agricultural Conversion
Æ Wildfire and Invasive Plants
Æ Grazing and Rangeland Management
Æ Free-Roaming Equids
Æ Conifer Encroachment
Æ Mining
Æ Renewable Energy
Æ Urban and Exurban Development
Æ Recreation
Æ Climate Change and Drought
Æ Predation
Æ Disease
Æ Recreational Hunting
Æ Scientific and Educational Use
Æ Contaminants
Æ Military Activity
Æ Small Populations
Æ Regulatory Mechanisms
• Finding
Æ Significant Portion of the Range
• Conclusion
species are endangered or threatened,
and expeditious progress is being made
to add or remove qualified species from
the Federal Lists of Endangered and
Threatened Wildlife and Plants. Section
4(b)(3)(C) of the Act requires that we
treat a petition for which the requested
action is found to be warranted but
precluded as though resubmitted on the
date of such finding, that is, requiring a
subsequent finding to be made within
12 months. We must publish these 12month findings in the Federal Register.
See below for further discussion of the
limitations imposed through various
means on this determination.
Background
Previous Federal Actions
Section 4(b)(3)(B) of the Act (16
U.S.C. 1531 et seq.), requires that, for
any petition to revise the Federal Lists
of Endangered and Threatened Wildlife
and Plants that contains substantial
scientific or commercial information
that listing the species may be
warranted, we make a finding within 12
months of the date of receipt of the
petition. In general we must determine
whether a petitioned action is: (1) Not
warranted, (2) warranted, or (3)
warranted, but the immediate proposal
of a regulation implementing the
petitioned action is precluded by other
pending proposals to determine whether
From 1999 to 2005, we received eight
petitions to list the greater sage-grouse
throughout its range or within specific
populations (Table 1). Among those,
two were petitions to list the bi-State
Distinct Population Segment (DPS) of
the greater sage-grouse (2002 and 2005),
which we have addressed separately
and, hence, are not included in this
status assessment (see Bi-State Distinct
Population Segment, below). The
responses to the other six petitions and
the outcomes of ensuing lawsuits and
court settlements are detailed in the
2010 finding (75 FR 13910, March 23,
2010), and are summarized in Table 1.
TABLE 1—SUMMARY OF PREVIOUS FEDERAL ACTIONS FOR GREATER SAGE-GROUSE, INCLUDING THE EASTERN AND
WESTERN SUBSPECIES AND COLUMBIA BASIN POPULATION
Date
Request of petition
90-day petition
finding
Status review
finding
Legal challenges
Determination upheld
Craig Dremann .............
(Institute for Wildlife
Protection.
American Lands Alliance [lead] + 20
other organizations).
Jul. 2, 2002 ....
Mar. 24, 2003
Dec. 29, 2003
List rangewide ..
List rangewide ..
List rangewide ..
Western Watersheds Project
challenged in
2006.
Finding remanded in
2007; warranted
finding published
March 23, 2010 (75
FR 13910).
Jan. 24, 2002
List the western
subspecies.
These three petitions were combined in one
substantial finding: Apr. 21,
2004 (69 FR
21484).
Non-substantial;
Feb. 7, 2003
(68 FR 6500).
Not warranted;
Jan. 12, 2005
(70 FR 2244).
Institute for Wildlife Protection.
N/A ....................
Institute for
Wildlife Protection challenged.
Institute for Wildlife Protection.
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Petitioner
Jul. 3, 2002 ....
List the eastern
subspecies.
Non-substantial;
Jan. 7, 2004 (69
FR 933).
N/A ....................
Institute for
Wildlife Protection challenged.
NW Ecosystem Alliance
and Biodiversity
Legal Foundation.
May 28, 1999
List the Columbian Basin
population as
a DPS.
Substantial; Aug.
24, 2000 (65 FR
51578).
Warranted but
N/A ....................
precluded;
May 7, 2001
(66 FR 22984).
Positive 90-day finding April 29, 2008
(73 FR 23170); part
of March 23, 2010,
finding, but determined it was not a
recognized subspecies (75 FR
13910).
Judge ruled in favor of
the Service on
Sept. 28, 2004, and
dismissed plaintiff
case.
Committed to resolve
the DPS status in
the rangewide status review.
In 2010, we found that listing the
greater sage-grouse rangewide was
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warranted, but precluded by other
higher priority actions. That finding was
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based on continuing population
declines, with some areas of local
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extirpations, resulting from habitat
fragmentation. At that time, habitat
fragmentation was caused by a number
of land use activities, but energy
development, agricultural conversion,
conifer encroachment, wildfire, and
invasive species were of particular
concern. Significant habitat
fragmentation was expected to continue
into the foreseeable future, and
regulatory mechanisms were ineffective
in addressing this threat. As a result of
these findings, the greater sage-grouse
was made a candidate for listing
rangewide with a listing priority
number of 8, indicating that threats
were of moderate magnitude and
imminent (75 FR 13910, March 23,
2010).
On May 10, 2011, we filed a multiyear
workplan as part of a proposed
settlement agreement with Wild Earth
Guardians and others in a consolidated
case in the U.S. District Court for the
District of Columbia. On September 9,
2011, the Court accepted our agreement
with the plaintiffs in Endangered
Species Act Section 4 Deadline Litig.,
Misc. Action No. 10–377 (EGS), MDL
Docket No. 2165 (D. D.C.) (known as the
‘‘Multi-District Litigation case’’), on a
schedule to publish proposed rules or
not-warranted findings for the 251
species designated as candidates as of
2010 no later than September 30, 2016.
The workplan included a deadline to
submit a proposed rule or not-warranted
finding to the Federal Register for
greater sage-grouse, including any DPSs
(but excluding the bi-State DPS), by
September 30, 2015. Further, Congress
prohibited the expenditure of funds to
publish a proposed rule for the greater
sage-grouse or the Columbian Basin
population (Pub. L. Number 113–235).
The publication of this finding complies
with the workplan and is consistent
with Congressional direction.
Species Information
Greater sage-grouse are birds in the
Phasianidae family, which is a diverse
taxonomic group consisting of over 50
genera including turkeys (Meleagris
spp.), pheasants (Phasianus spp.), and
partridges (Perdix spp.). Adult male
greater sage-grouse range in length from
66 to 76 centimeters (cm) (26 to 30
inches (in)) and weigh between 2 and 3
kilograms (kg) (4.4 and 6.6 pounds (lb)).
Adult females are smaller, ranging in
length from 48 to 58 cm (19 to 23 in)
and weigh between 1 and 2 kg (2.2 and
4.4 lb). Males and females have dark
grayish brown body plumage with many
small gray and white spots, fleshy
yellow combs over the eyes, long
pointed tails, fully feathered legs and
feet, and dark green toes. Males also
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have blackish chin and throat feathers,
conspicuous phylloplumes (specialized
erectile feathers) at the back of the head
and neck, and white feathers forming a
ruff around the neck and upper belly.
During breeding displays, males exhibit
olive-green apteria (fleshy bare patches
of skin) on their breasts (Schroeder et al.
1999, p. 2).
Bi-State Distinct Population Segment
In 2010, we found the bi-State
population to be a DPS because it is
genetically unique and markedly
separate from the rest of the greater
sage-grouse range (75 FR 13910, March
23, 2010). This DPS has been addressed
in a separate status review and was
determined to be not warranted for
listing (80 FR 22828, April 23, 2015).
Therefore, the bi-State population of
greater sage-grouse will not be
addressed in this status review.
Columbia Basin Population
In 2001, we concluded in a 12-month
finding that the Columbia Basin
population of the western sage-grouse, a
subspecies of the greater sage-grouse,
was a valid DPS that warranted listing
under the Act (66 FR 22984, May 7,
2001). The subspecies was previously
described as being found in southern
British Columbia, central Washington,
and parts of Oregon, Nevada, and
California. Since that 12-month finding,
new information emerged that led us to
conclude in 2010 that the best scientific
and commercial information does not
support the recognition of and the
taxonomic validity of the western
subspecies (75 FR 13910, March 23,
2010). In that finding, we also reported
that we would reevaluate the status of
the Columbia Basin population as it
relates to the greater sage-grouse in the
future. Therefore, in the following
section we reevaluate the validity (i.e.,
discreteness and significance) of the
Columbia Basin population as a possible
DPS with respect to the correct taxon to
which it belongs: The greater sagegrouse (Centrocercus urophasianus).
Within our Policy Regarding the
Recognition of Distinct Vertebrate
Population Segments Under the
Endangered Species Act (61 FR 4722,
February 7, 1996), three elements are
considered in the decision concerning
the establishment and classification of a
possible DPS. These elements include:
(1) The discreteness of a population in
relation to the remainder of the species to
which it belongs;
(2) The significance of the population
segment to the species to which it belongs;
and
(3) The population segment’s conservation
status in relation to the Act’s standards for
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listing, delisting, or reclassification (is the
population segment endangered or
threatened).
Discreteness
Under the DPS policy, a population
segment of a vertebrate taxon may be
considered discrete if it satisfies either
one of the following conditions:
(1) It is markedly separated from other
populations of the same taxon as a
consequence of physical, physiological,
ecological, or behavioral factors. Quantitative
measures of genetic or morphological
discontinuity may provide evidence of this
separation.
(2) It is delimited by international
governmental boundaries within which
differences in control of exploitation,
management of habitat, conservation status,
or regulatory mechanisms exist that are
significant in light of section 4(a)(1)(D) of the
Act.
In our 2001 12-month finding on the
Columbia Basin DPS (66 FR 22984, May
7, 2001), we found that the population,
which is located in Washington, was
physically discrete from other
populations of what we then considered
the western subspecies of greater sagegrouse in central and southern Oregon.
Below, we reevaluate that finding giving
consideration to new information and
conducting our analysis with respect to
the entire range of greater sage-grouse.
Markedly Separate—Greater sagegrouse in the Columbia Basin occur in
four relatively small, disconnected
areas. Two of these areas (the Army’s
Joint Base Lewis-McChord–Yakima
Training Center (YTC) and Douglas
County) have endemic populations, and
two areas (Yakama Indian Nation and
Lincoln County) are in the process of
being repopulated by translocations of
individuals from outside the Columbia
Basin (WWHCWG 2010, p. 55;
WWHCWG 2012, pp. A.2–3).
Translocations began in 2004 with
augmentation efforts on the YTC
(Schroeder et al. 2014, p. 8; Stinson and
Schroeder 2014, p. 15). Translocations
to reestablish populations on Yakama
Nation lands and in Lincoln County
were initiated in 2006 and 2008,
respectively (Schroeder et al. 2014, pp.
8–15).
The pre-European settlement
distribution of greater sage-grouse is
generally described as being continuous
from central Oregon, north to the
Columbia Basin (Schroeder et al. 2004,
p. 368). However, this continuity was
lost between the pre- and postsettlement period, mostly due to habitat
fragmentation (Schroeder et al. 2000,
pp. 105, 110; 2004, pp. 369–370).
Breeding populations of greater sagegrouse in the Columbia Basin are now
separated by approximately 250
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kilometers (km) (155 miles (mi)) of
fragmented and unsuitable habitat from
the next nearest breeding population,
the Baker population in Oregon
(Johnson et al. 2011, p. 409, Knick et al.
2013, p. 1544). The second closest
breeding population, in central Oregon,
is approximately 260 km (162 mi) from
the nearest breeding population in the
Columbia Basin (Johnson et al. 2011, p.
409, Knick et al. 2013, p. 1544). The
area between these populations consists
of relatively small patches of fragmented
Artemisia spp. (sagebrush) within a
matrix of croplands (Knick et al. 2003,
pp. 615–618). At the narrowest point,
sagebrush habitats on either side of this
forested mountain range are
approximately 25 km (15 mi) apart, and
no historical greater sage-grouse records
exist for this area (Knick et al. 2013, p.
1544).
No documented instances exist of
greater sage-grouse moving between the
Columbia Basin and any other greater
sage-grouse populations without the aid
of translocations. Seasonal migration in
sage-grouse over 100 km (62 mi) has
been observed (Hagen 1999, p. 39; Tack
et al. 2012, p. 65), but in Washington,
seasonal movements tend to be less than
30 km (19 mi) between breeding and
wintering areas (Schroeder and Vander
Haegen 2006, entire; WWHCWG 2010,
pp. 54–55). Despite documentation of
extensive seasonal movements in this
species (Fedy et al. 2012, p. 1066; Tack
et al. 2012, p. 65; Davis et al. 2014, pp.
715–716), the natal dispersal abilities of
sage-grouse have been shown to be low
(Dunn and Braun 1985, p. 622;
Thompson 2012, p. 193). Based on data
from radio-marked greater sage-grouse,
the maximum distance translocated
birds in the Columbia Basin moved from
the point of release was 85 km (53 mi).
The average maximum distance
removed from the release site for all
birds with two or more locations was
only 14 km (9 mi) (Schroeder et al.
2014, p. 17).
The ability of greater sage-grouse to
move through the landscape is affected
by many factors, including the presence
of suitable habitats or topographic
features that impede movement
(Schulwitz et al. 2014, p. 568; Row et al.
2015, pp. 1965–1966). An assessment of
habitat linkages between greater sagegrouse in Washington and Oregon
showed relatively high landscape
resistance to greater sage-grouse
movements and no modeled linkages
between the Columbia Basin and other
greater sage-grouse populations
(WWHCWG 2010, pp. 57–59). A
separate modeling effort evaluating
contemporary connectivity among leks
(communal breeding centers where
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males perform courtship displays)
spanning the Great Basin and Columbia
Basin also showed little to no movement
potential between the Columbia Basin
and other greater sage-grouse
populations (Knick et al. 2013, p. 1548).
Analysis of genetic variation across
the range of greater sage-grouse is
consistent with relatively short-distance
dispersal, with gene flow (the transfer of
genetic material from one population to
another) decreasing as the distance
between populations increases (i.e.,
isolation by distance) (Oyler-McCance et
al. 2005, p. 1306). Landscape resistance
can also influence patterns of gene flow
in greater sage-grouse, with broad-scale
distribution of low-quality nesting and
wintering habitats identified as the most
important factors driving patterns of
effective dispersal (Row et al. 2015, pp.
1963–1964). Landscape-scale analyses
of genetic variation show low levels of
gene flow between the Columbia Basin
and other populations of greater sagegrouse (Oyler-McCance et al. 2005, p.
1306). Analysis of allele frequencies in
greater sage-grouse on the YTC prior to
augmentation efforts showed that these
individuals had low genetic diversity
and were distinguishable from
individuals translocated from Oregon
and Nevada (Blankenship et al. 2011,
pp. 7, 10); a result that is consistent
with little to no contemporary gene
flow.
Greater sage-grouse have been
translocated to the Columbia Basin from
Idaho, Oregon, Nevada, and Wyoming
(Livingston et al. 2006, pp. 2–3;
Schroeder et al. 2014, pp. 8, 14–15).
Moving greater sage-grouse from other
areas into the Columbia Basin
population means that, while this
population is physically discrete from
other populations, it has been connected
through human intervention. Genetic
data collected post-augmentation on the
YTC confirms that breeding between
endemic individuals and translocated
individuals has occurred (Blankenship
et al. 2011, p. 10). It is unknown if
translocated greater sage-grouse released
on the Yakama Nation or in Lincoln
County are interbreeding with endemic
populations of greater sage-grouse.
However, at least one bird translocated
to Lincoln County is known to have
dispersed to the Douglas County
population (Schroeder et al. 2014, p.
17). In addition, two males released in
Lincoln County moved to the Douglas
County population for a few days early
in the 2015 breeding season, but
returned to Lincoln County and were
observed strutting on the Lincoln
County lek (McPherron, USFWS, pers.
comm. 2015).
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International Boundaries—Greater
sage-grouse occurrences were
documented in British Columbia from
1864 to 1918 (Campbell and Ryder 2010,
p. 7), in the Okanogan Valley, an area
considered part of the Columbia Basin
ecosystem. From 1918 to the 1950s, no
occurrence records were reported
(Campbell and Ryder 2010, entire).
Translocations were conducted to
reintroduce greater sage-grouse in the
late 1950s, but given the lack of
occurrence records since the 1960s, the
species is considered extirpated from
the province (Campbell and Ryder 2010,
pp. 7–10). Therefore, greater sage-grouse
in the Columbia Basin are not delimited
by international governmental
boundaries.
Summary for Discreteness—Greater
sage-grouse in the Columbia Basin are
physically separated from the nearest
populations by approximately 250 to
260 km (155 to 162 mi). Information on
movement and dispersal ecology,
telemetry data, habitat and connectivity
modeling, and genetic analyses, when
viewed together, suggest that greater
sage-grouse are unlikely to move
between the Columbia Basin population
and other greater sage-grouse
populations. Based on this information
alone, we could conclude that the
Columbia Basin population is discrete
based on marked separation from other
populations as a consequence of
physical and ecological factors.
However, ongoing translocation efforts
provide a connection that artificially
links the Columbia Basin population to
other populations of greater sage-grouse.
The connectivity provided by humanintervention complicates any
conclusions about the Columbia Basin
population’s discreteness. Therefore, we
will assume that the population could
be discrete and move on to assess the
significance of the population to the
taxon.
Significance
If a population segment is considered
discrete under one or more of the
conditions described in our DPS policy,
its biological and ecological significance
will be considered in light of
Congressional guidance that the
authority to list DPSs be used
‘‘sparingly’’ (see Senate Report 151, 96th
Congress, 1st Session) while
encouraging the conservation of genetic
diversity. In making this determination,
we consider available scientific
evidence of the DPS’s importance to the
taxon to which it belongs. Since precise
circumstances are likely to vary
considerably from case to case, the DPS
policy does not describe all the classes
of information that might be used in
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determining the biological and
ecological importance of a discrete
population. However, the DPS policy
describes four possible classes of
information that provide evidence of a
population segment’s biological and
ecological importance to the taxon to
which it belongs. As specified in the
DPS policy (61 FR 4722, February 7,
1996), this consideration of the
population segment’s significance may
include, but is not limited to, the
following:
(1) Persistence of the population segment
in an ecological setting unusual or unique to
the taxon;
(2) Evidence that loss of the population
segment would result in a significant gap in
the range of a taxon;
(3) Evidence that the population segment
represents the only surviving natural
occurrence of a taxon that may be more
abundant elsewhere as an introduced
population outside its historical range; or
(4) Evidence that the population segment
differs markedly from other populations of
the species in its genetic characteristics.
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A population segment needs to satisfy
only one of these conditions to be
considered significant. Furthermore,
other information may be used as
appropriate to provide evidence for
significance.
In our 2001, 12-month finding on the
Columbia Basin DPS, we found that the
population was significant to the
western subspecies because it occurred
in a unique ecological setting to the
subspecies and because loss of the
Columbia Basin would have resulted in
a significant gap in the range of the
western subspecies (66 FR 22984, May
7, 2001, p. 22992). Below we reevaluate
these findings giving consideration to
new information and conducting our
analysis on the significance of the
population segment to the greater sagegrouse species, rather than to the nolonger-recognized western subspecies.
Unusual or Unique Ecological
Setting—In our 12-month finding
published in 2001, relative to unusual
or unique ecological setting, we found
that:
(1) The Columbia Basin is a unique
ecosystem, whose characteristics were the
result of a unique combination of elevation,
soil, influences of historical geologic
processes, and climatic conditions; as a
result, sagebrush habitats in the Columbia
Basin could be differentiated from sagebrush
habitats outside of the Columbia Basin by a
number of floristic characteristics, including
the presence of Juniperus spp. (juniper)
woodlands, salt-desert shrub habitats, and
the type and distribution of sagebrush taxa
and forb species;
(2) Sage-grouse occupying the Columbia
Basin were, ‘‘necessarily,’’ differentially
exploiting the resources that are available, as
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compared with sage-grouse in central and
southern Oregon; and that these differences
in exploitation of resources had bearing on
their food and cover preferences,
distribution, movements, reproductive
fitness, and ultimately, their survival; and
(3) The unique elements of the Columbia
Basin held different management
implications for western sage-grouse within
this ecosystem (66 FR 22984, May 7, 2001).
Below, we reevaluate these findings
giving consideration to new information
and conducting our analysis on the
entire greater sage-grouse range, rather
than the no-longer-recognized western
subspecies range.
As stated in the DPS Policy,
occurrence in an unusual ecological
setting may indicate that a population
segment represents a significant
resource warranting conservation under
the Act (61 FR 4722, February 7, 1996).
In considering whether the population
occupies an ecological setting that is
unusual or unique for the taxon, we
evaluate whether the habitat includes
unique features not used by the taxon
elsewhere and whether the habitat
shares many features common to the
habitats of other populations. We
further evaluate whether any of these
differences could play an important
biological role with respect to the
remainder of the taxon, such as by
contributing to the taxon’s prospects for
survival, to a degree that the population
warrants conservation under the Act.
The Columbia Basin represents a
separate floristic province within the
range of the greater sage-grouse and is
unique in that none of the ecosystems
within the range of the greater sagegrouse are exactly the same with respect
to elevation, soil, influences of
historical geologic processes, and
climatic conditions. As we found in
2001, these differences have resulted in
some differences to the types of
sagebrush and other vegetative
components present in the ecosystem
(66 FR 22984, May 7, 2001, pp. 22989–
22991). However, simply the occurrence
of a species within a definable
ecosystem does not, by itself, make it
significant to the taxon under the DPS
Policy. Sagebrush-dominated plant
communities vary considerably across
the range of greater sage-grouse (West
and Young 2000, pp. 259–267), and
specific habitat components used by
greater sage-grouse can vary due to
biotic and abiotic factors (Connelly et al.
2011a, p. 70). Yet, common to all greater
sage-grouse is the use of sagebrush and
their dependence on this habitat for
food and cover during all periods of the
year (Connelly et al. 2004, pp. 4–1—4–
19).
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The greater sage-grouse appears to be
fairly adaptable to a variety of
conditions as it: (1) Occurs throughout
a wide variety of sagebrush habitats in
western North America; (2) occurs and
breeds from less than 610 m (2,000 ft)
to more than 3,000 m (9,842 ft) above
sea level; (3) spans a variety of climatic
conditions from relatively wet montane
sagebrush communities to dry sagebrush
types; and (4) uses a wide range of
understory vegetation during the
breeding and brood-rearing periods
(Aldridge and Brigham 2002, pp. 440–
442; Connelly et al. 2004, pp. 4–1—4–
19; Schroeder et al. 2004, pp. 366–368;
Guttery 2011, pp. 20, 50–51). Stated
more simply, the species is able to
occupy a broad range of sagebrush
communities throughout western North
America. Therefore, the ability of the
Columbia Basin population of greater
sage-grouse to exist within a particular
amalgamation of habitat features does
not necessarily contribute to the
survival of the greater sage-grouse
species, or otherwise serve an important
biological role with respect to the taxon.
The degree to which regional
differences in habitat components affect
greater sage-grouse distribution,
reproductive fitness, and survival is
complex (Connelly et al. 2011a, pp. 71–
83). Greater sage-grouse in the Columbia
Basin are comparable to other
populations of greater sage-grouse in
their date of nest initiation, variation in
the date of nest initiation, length of
incubation, nest success, lek visitation
by females, and fidelity of males to leks
(Schroeder 1997, pp. 937–939;
Schroeder and Robb 2003, pp. 295–296).
Differences reported for the Douglas
County population include higher
reproductive effort than greater sagegrouse in other regions and lower
fidelity to nest sites (Schroeder 1997, p.
939; Schroeder and Robb 2003, p. 296).
The degree to which these differences
are the result of habitat fragmentation in
north-central Washington or other
factors is unknown (Schroeder and Robb
2003, p. 297). Nevertheless, greater sagegrouse in the Columbia Basin appear to
have reproductive output and survival
estimates that are within the range of
values observed elsewhere across the
range of the species (Stinson et al. 2004,
p. 6, Connelly et al. 2011b, pp. 56–58).
Under the DPS Policy, a
determination of significance can be
made if a population segment persists in
a unique or unusual ecological setting
that is significant to the taxon to which
it belongs. Although the Columbia Basin
differs in some ways from other habitats
that the greater sage-grouse inhabits,
this is not unusual for the greater sagegrouse rangewide given the diversity of
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sagebrush habitats the species utilizes
across its range. Further, nothing about
the Columbia Basin population’s life
history or habitat use is unique when
compared to other populations across
the range. Given that Columbia Basin
habitat and birds fall within the natural
range of variability for greater sagegrouse across its range, we conclude
that the best information available
indicates that the Columbia Basin
population is not significant to the
species as a whole because of
persistence in an unusual or unique
ecological setting.
Significant Gap in the Range of the
Taxon—In our 12-month finding
published in 2001, relative to gap in the
range, we found that:
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(1) Columbia Basin greater sage-grouse
represent the extreme northwestern extent of
greater sage-grouse range and the
northernmost extent of the historical
distribution of the western sage-grouse;
(2) The Columbia Basin historically
encompassed roughly 55 percent of the entire
range of western sage-grouse; and
(3) Due to its potential isolation, greater
sage-grouse in the Columbia Basin are likely
experiencing increased directional selection
due to marginal and varied habitats at the
taxon’s range periphery, exhibiting genetic
consequences of reduced gene flow from
other population segments, and responding
(and will continue to respond) to the
different anthropogenic (human caused)
influences in the region (66 FR 22984, May
7, 2001).
Below, we reevaluate these findings
giving consideration to new information
and conducting our analysis on the
entire greater sage-grouse range, rather
than the previously designated western
subspecies’ range.
Greater sage-grouse in the Columbia
Basin are the northwestern extent of the
sage-grouse range, but greater sagegrouse in Alberta and Saskatchewan and
northern Montana make up the
northernmost extent of the range. To
assess the degree to which being the
northwestern extent of the range makes
the population significant, we must
consider the proportion of individuals
in this extent of the range and the
amount of habitat available there for
greater sage-grouse; being a peripheral
population, by itself, does not connote
significance to the taxon. Relative to the
rest of the range of greater sage-grouse
(excluding the bi-State DPS), the
Columbia Basin is estimated to contain
only 0.6 percent of the rangewide
population estimate (Doherty et al.
2015, entire), 2.7 percent of the
rangewide distribution of sagebrush
habitats (Knick 2011, p. 25), and 4
percent of the total occupied range
(Knick 2011, p. 25).
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In addition, given new information
since 2001, we must reevaluate our
conclusion relative to the likelihood of
directional selection due to the isolation
of this peripheral population. The best
available population and genetic data
suggest that greater sage-grouse in the
Columbia Basin have undergone a
severe reduction in population size, and
are now isolated from other populations
(Schroeder et al. 2000, pp. 106–109;
Oyler-McCance et al. 2005, p. 1307).
This has resulted in the loss of genetic
diversity, and the population now has
the lowest levels of genetic diversity, as
measured in mitochondrial and nuclear
markers, reported for any greater sagegrouse population (Oyler-McCance et al.
2005, p. 1307). However, the extent to
which this isolation is causing
‘‘selection’’ or has resulted in the
development of traits in greater sagegrouse that are adapted to the Columbia
Basin is not definitive.
Morphological or behavioral
differences in greater sage-grouse may
be indicators of adaptive traits not
revealed through analysis of neutral
genetic markers. Comparisons of greater
sage-grouse in the Columbia Basin with
other greater sage-grouse populations
suggest they are heavier than birds in
Idaho, Nevada, Oregon, and California,
but are similar in mass to greater sagegrouse in northern Colorado to Alberta
(Schroeder 2008, pp. 5–9). Although
some wing and tail measurements
differed between greater sage-grouse
from the Columbia Basin and elsewhere,
the comparison included only a small
number of other populations,
measurement bias was unknown, and
the conclusion of the author was that
the available morphometric data did not
illustrate any unique morphological
characteristics in the Columbia Basin
birds (Schroeder 2008, p. 10). Similarly,
an assessment of the available
behavioral data did not reveal any
substantial differences in greater sagegrouse behavior in the Columbia Basin
(Schroeder 2008, pp. 9–10).
In summary, loss of the Columbia
Basin population would not result in a
significant gap in the range of greater
sage-grouse. This area represents less
than 1 percent of the rangewide
population estimates and less than 3
percent of sagebrush habitat. While loss
of this population would reduce the
occupied range of the species, it would
not remove a habitat type found
nowhere else in the range nor would it
create a barrier to the movement of birds
from other populations. Although the
Columbia Basin population is
peripheral and isolated, there is no
evidence that it has been isolated for
long periods of evolutionary time,
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resulting in significant adaptive traits
that might indicate its loss would be
significant to the taxon.
Marked Genetic Differences—In our
12-month finding published in 2001, we
found that the results from rangewide
genetic studies were ‘‘suggestive’’ and
demonstrated a marked difference
between the population segment of
greater sage-grouse within the Columbia
Basin and the population segment in
central and southern Oregon. However,
we concluded that these results did not
necessarily indicate that genetic
differentiation of this population
segment is significant to the remainder
of the taxon, as we were unsure to what
extent the forces of isolation, adaptive
change, genetic drift, and/or inbreeding
may have influenced the regional
profiles of greater sage-grouse (66 FR
22984, May 7, 2001). Below, we
reevaluate these findings giving
consideration to new information and
conducting our analysis on the entire
greater sage-grouse range, rather than
the previously recognized western
subspecies range.
Additional rangewide studies of
neutral genetic variation since 2001
support the conclusion that greater sagegrouse in the Columbia Basin segregate
from the other populations when
evaluated using quantitative measures
of genetic diversity (Benedict et al.
2003, pp. 308–309; Oyler-McCance et al.
2005, pp. 1304–1305). The reason that
genetic diversity can be significant to a
species is that the presence of novel
haplotypes (set of genes inherited from
one parent) or alleles (a variant form of
a gene) could provide the species with
adaptive capacity if faced with
deteriorating environmental conditions.
However, the quantitative differences in
genetics between this population and
the species as a whole were largely the
result of greater sage-grouse in the
Columbia Basin having extremely low
levels of genetic diversity (OylerMcCance et al. 2005, p. 1307), rather
than a being a function of having a large
proportion of novel haplotypes or
alleles.
Evaluation of mitochondrial DNA
(mtDNA) revealed that approximately
90 percent of the sampled greater sagegrouse in the Columbia Basin had a
single mitochondrial DNA haplotype,
while only one novel haplotype was
present (Oyler-McCance et al. 2005, pp.
1298–1300). This novel haplotype
(Haplotype DS) was in the same
grouping as one of the most common
haplotypes observed in greater sagegrouse (Haplotype X) with only a single
base-pair difference from this common
haplotype (Oyler-McCance et al. 2005,
pp. 1299, 1301). This indicates that only
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a single mutational event was necessary
to produce this novel haplotype, which
could have occurred over a relatively
short amount of evolutionary time.
Thus, the available genetic evidence
from studies of mtDNA does not lead us
to conclude that the populations in
Washington are markedly genetically
different from other populations of
greater sage-grouse found throughout
the Great Basin.
Nuclear genetic data evaluated using
microsatellite markers showed that
populations in the Columbia Basin had
the lowest genetic diversity of the 46
populations of greater sage-grouse
studied (Oyler-McCance et al. 2005, p.
1307). Although genetic distance
comparisons showed that the Columbia
Basin populations were some of the
most differentiated of all greater sagegrouse populations, this finding is
largely a reflection of the small number
of alleles found there (Oyler-McCance et
al. 2005, p. 1307). Therefore, while
statistically different, these differences
cannot be attributed to greater sagegrouse being isolated for a long period
of evolutionary time, which might have
indicated that they had developed some
adaptive traits not found elsewhere in
the range of greater sage-grouse.
Summary for Significance—We have
considered significance of the Columbia
Basin population by evaluating the
uniqueness of the ecological setting; the
potential for a significant gap in the
range of greater sage-grouse if the
population was lost; and genetic
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distinctness from other greater sagegrouse populations. We conclude that
the Columbia Basin greater sage-grouse
do not occur in a unique ecological
setting, and their loss would not result
in a significant gap in the range of the
greater sage-grouse. While genetic
diversity is low, the population is not
markedly genetically different from
other populations of greater sage-grouse.
Based on this information, we find that
this population does not meet the
definition of significance as defined in
our 1996 DPS policy.
Greater Sage-Grouse Listable Entity
Summary
In 2010, we determined that the biState population qualified as a DPS
under the Act. At that time, we deferred
any other decisions about potential
DPSs, including an assessment of the
Columbia Basin population, until this
status review. After consideration of the
distinctness and significance of the
Columbia Basin population, giving
consideration to new information, and
conducting our analysis on the
significance of the population to the
greater sage-grouse rangewide instead of
to the previously recognized western
subspecies, we have determined that it
does not meet the criteria for a DPS.
Therefore, the Columbia Basin
population will be considered together
with the other populations in the greater
sage-grouse range (hereafter referred to
as sage-grouse). Specifically, when we
discuss sage-grouse in the Great Basin,
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we are including Columbia Basin in
those discussions. The remainder of this
status review will consider all
populations and habitat across the range
of the species, with the exception of the
bi-State DPS.
Distribution
Prior to European settlement of
western North America in the 19th
century, sage-grouse occurred in an area
that today would cover 13 States and 3
Canadian provinces—Arizona,
California, Colorado, Idaho, Montana,
Nebraska, Nevada, North Dakota,
Oregon, South Dakota, Utah,
Washington, Wyoming, British
Columbia, Alberta, and Saskatchewan
(Schroeder et al. 2004, p. 369; Figure 1).
Sagebrush habitats that potentially
supported sage-grouse occurred over
approximately 1.2 million square
kilometer (km2) (460,000 square miles
(mi2)) before 1800 (Schroeder et al.
2004, p. 366). Currently, sage-grouse
occur in 11 States (California, Colorado,
Idaho, Montana, Nevada, North Dakota,
Oregon, South Dakota, Utah,
Washington, Wyoming), and 2 Canadian
provinces (Alberta and Saskatchewan),
occupying approximately 56 percent of
their historical range (Schroeder et al.
2004, p. 369; Figure 1). Approximately
2 percent of the total range of sagegrouse occurs in Canada, with the
remainder in the United States (Knick
2011, p. 24).
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The Western Association of Fish and
Wildlife Agencies (WAFWA)
Conservation Strategy for Greater Sagegrouse (Stiver et al. 2006, p. 1–6)
delineated seven sage-grouse
Management Zones (MZ; Figure 1) to
guide conservation and management.
The boundaries of these MZs were
delineated based on their ecological and
biological attributes (floristic provinces)
rather than on political boundaries
(Stiver et al. 2006, p. 1–6); therefore,
vegetation is similar within each MZ,
and sage-grouse are likely to respond
similarly to environmental factors and
management actions. For this reason, we
conducted analyses for some potential
threats at the MZ-scale. While the
Conservation Objectives Team (COT)
Report (see Conservation Objectives
Team Report below for further
description) identifies Priority Areas for
Conservation (PACs) as the areas needed
for the species persistence, not all data
used in our potential analyses was
available at the PAC scale and the data
did not provide a consistent rangewide
data set, so PACs were not used as the
unit of analysis for the impact analysis.
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Sagebrush occurs in two natural
vegetation types that are influenced by
elevation, temperature, and patterns of
precipitation (Miller et al. 2011, pp.
147–148). In general, the Great Basin
portion of the range, which
encompasses MZs III, IV, V, and VI, is
lower in elevation and experiences less
precipitation. The Rocky Mountain
portion of the range, which
encompasses MZs I, II, and VII,
generally is higher in elevation and has
greater precipitation. Due to the
variance in the ecological conditions,
the regions have differential
susceptibility to potential threats (see
Summary of Information Pertaining to
the Five Factors, below).
Sage-grouse currently occupy a
portion of their historical range and are
more concentrated in certain Core
Areas. Sage-grouse have been extirpated
from Nebraska, British Columbia, and
Arizona (Schroeder et al. 1999, p. 2;
Young et al. 2000 p. 445; Schroeder et
al. 2004, p. 369). Changes from the
estimated historical distribution are the
result of sagebrush alteration and
degradation (Schroeder et al. 2004, p.
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59865
363; Knick and Connelly 2011, p. 6).
The current distribution of sage-grouse
is estimated at 703,453 km2 (271,604
mi2; USFWS 2015a). Approximately
half of the sage-grouse occur in the
Rocky Mountain portion of the range
and half in the Great Basin portion of
the range. Management Zones with the
highest relative amounts of birds are MZ
II (37.5 percent of the rangewide
population estimate) and MZ IV (30.7
percent of the rangewide population
estimate). As a result, impacts in these
MZs may have greater impact to the
species rangewide (see Summary of
Information Pertaining to the Five
Factors, below).
Habitat
Sage-grouse depend on a variety of
shrub-steppe habitats throughout their
life cycle and are considered a
sagebrush obligate (Patterson 1952, p.
48). Sage-grouse use a variety of
sagebrush species such as Artemisia
tridentata wyomingensis (Wyoming big
sagebrush), A. t. vaseyana (mountain big
sagebrush), A. t. tridentata (basin big
sagebrush), A. nova (black sagebrush),
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A. frigida (fringed sagebrush), A. cana
(silver sagebrush), and A. arbuscula
(little sagebrush) (Miller et al. 2011, pp.
145–151). Sage-grouse distribution is
strongly correlated with the distribution
of sagebrush vegetation (Schroeder et al.
2004, p. 364).
Sagebrush is the most widespread
vegetation in the intermountain
lowlands in the western United States
(West and Young 2000, p. 259).
Sagebrush occurs in two natural
vegetation types that are delineated by
temperature and patterns of
precipitation (Miller et al. 2011, pp.
147–148). The first, sagebrush-steppe,
ranges across the northern portion of
sage-grouse occupied range, from British
Columbia and the Columbia Basin,
through the northern Great Basin, Snake
River Plain, and Montana, and into the
Wyoming Basin and northern Colorado.
Sagebrush is a co-dominant plant, along
with perennial bunchgrasses, in
sagebrush-steppe. The second
vegetation type, Great Basin sagebrush,
occurs south of sagebrush-steppe, and
extends from the Colorado Plateau
westward into Nevada, Utah, and
California (Miller et al. 2011, pp. 147–
148). In the Great Basin sagebrush zone,
sagebrush is usually the dominant plant
layer accompanied by sparse
understories. Other sagebrush types
within the sage-grouse occupied range
include mixed-desert shrubland in the
Bighorn Basin of Wyoming, and
grasslands in eastern Montana and
Wyoming that also support silver
sagebrush and A. filifolia (sand
sagebrush) (Miller et al. 2011 p. 148).
Sagebrush is long-lived, with plants of
some species surviving up to 150 years
(West 1983, p. 340). Sagebrush is
resistant to environmental extremes,
with the exception of fire and
occasionally defoliating insects (West
1983, p. 341). Natural sagebrush recolonization depends on the presence of
adjacent live plants for a seed source or
on the seed bank, if present (Miller and
Eddleman 2000, p. 17). Although seed
viability and germination are high, seed
dispersal is limited (West and Young
2000, p. 260). Additionally, sagebrush
seeds typically do not remain viable for
more than one growing season, and
evidence suggests that seeds do not
persist in the soil more than 1 year;
however, seeds have higher odds of
persisting in the seed bank if they are
buried (Wijayratne and Pyke 2012, p.
438). Productivity of plants associated
with the sagebrush understory varies
widely and is influenced by moisture
availability, soil characteristics, climate,
and topographic position (Miller et al.
2011, pp. 151–154). Forb abundance can
be highly variable from year to year and
is largely affected by the amount and
timing of precipitation.
Sage-grouse depend on large areas of
contiguous sagebrush to meet all
seasonal habitat requirements (Connelly
et al. 2011a, pp. 82–83; Wisdom et al.
2011, p. 465). Sage-grouse exhibit strong
site fidelity (loyalty to a particular area,
even when the area no longer provides
habitat) to seasonal habitats used for
breeding, nesting, brood-rearing, and
wintering (Connelly et al. 2004, p. 3–1;
Connelly et al. 2011b, p. 60). Little
information is available regarding
minimum sagebrush patch sizes
required to support populations of sagegrouse. Home range calculations range
from 4 to 615 km2 (1.5 to 237.5 mi2;
Connelly et al. 2011b, p. 60), and
migratory populations (which are
discussed in more detail below) may use
areas exceeding 2,700 km2 (1,042 mi2,
667,185 acres; Leonard et al. 2000, p.
269, Davis et al. 2014, p. 713). Large
seasonal and annual movements
emphasize the landscape nature of the
species (Knick et al. 2003, p. 624;
Connelly et al. 2011b, p. 60).
Federal lands encompass the majority
of the sage-grouse occupied range, with
MZs III, IV, and V being more than 60
percent federally owned (Table 2).
Primary Federal land managers within
the sage-grouse occupied range include
Bureau of Land Management (BLM) and
the U.S. Forest Service (USFS), which
together manage 51 percent of the sagegrouse occupied range. Other Federal
owners include the National Park
Service, Department of Defense (DoD),
the Service, and Department of Energy
(DOE). Private lands comprise
approximately 39 percent of the species’
occupied range, with the largest
proportion of private lands occurring in
MZs I and VI. Tribal lands cover
approximately 3 percent, and State
lands cover approximately 5 percent of
the current sage-grouse occupied range.
TABLE 2.—PERCENT OF THE CURRENTLY OCCUPIED SAGE-GROUSE RANGE WITHIN MANAGEMENT ZONES, BY SURFACE
MANAGING AGENCY
Management zone
BLM
Other
Federal
USFS
Tribal
State
Private
I Great Plains .....................................................................................................
II Wyoming Basin ..............................................................................................
III Southern Great Basin ....................................................................................
IV Snake River Plain .........................................................................................
V Northern Great Basin .....................................................................................
VI Columbia Basin .............................................................................................
VII Colorado Plateau .........................................................................................
16
49
69
52
62
5
39
2
2
14
8
7
0
0
1
2
1
3
6
13
0
5
3
1
1
1
11
25
8
6
2
5
2
7
11
69
38
13
30
23
63
25
Rangewide Totals .........................................................................................
45
6
2
3
5
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Life-History Characteristics and
Seasonal Habitat Selection
During the breeding season, male
sage-grouse gather together to perform
courtship displays on areas called leks.
These areas are often characterized by
having bare soil, shortgrass-steppe,
windswept ridges, exposed knolls, or
other relatively open sites (Connelly et
al. 2004, pp. 3–7). Leks are often
surrounded by denser shrub-steppe
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cover used for shelter and to escape
predators. Leks can be formed
opportunistically at any appropriate site
within or adjacent to nesting habitat
(Connelly et al. 2000a, p. 970), and,
therefore, lek habitat availability is not
considered to be a limiting factor for
sage-grouse (Schroeder et al. 1999, p. 4).
After mating, females travel to nesting
areas characterized by sagebrush with
an understory of native grasses and
forbs that provides cover, an insect prey
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base, and herbaceous forage for prelaying and nesting females (Connelly et
al. 2000a, p. 971; Connelly et al. 2004,
pp. 4–18). Females typically move 1.3 to
5.1 km (0.8 to 3.2 mi) from leks to nest
(Connelly et al. 2011b, p. 62), although
the juxtaposition of habitats,
disturbance, and the extent of habitat
fragmentation may influence nest
location distance from leks (Connelly et
al. 2011b, p. 62 and references therein).
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Sage-grouse clutch size ranges from six
to nine eggs with an average of seven
eggs (Connelly et al. 2011b, p. 62).
Males do not participate in incubation
of eggs or rearing chicks.
The likelihood of a female nesting in
a given year averages 82 percent in the
eastern portion of the range and 78
percent in the western portion of the
range (Connelly et al. 2011b, p. 63). Nest
success varies widely, and the average
nest success for sage-grouse is 51
percent in non-altered habitats and 37
percent in altered habitats (Connelly et
al. 2011b, p. 58). Re-nesting occurs only
if the original nest is lost (Schroeder et
al. 1999, p. 11) with an average renesting rate of 28.9 percent (Connelly et
al. 2004, pp. 3–11). Approximately 2.25
chicks per female may be necessary to
maintain stable to increasing
populations (Connelly et al. 2000a, p.
970). Due to low chick survival and
limited re-nesting, there is little
evidence that populations of sage-grouse
produce large annual surpluses
(Connelly et al. 2011b, p. 67).
Females rear their broods near the
nest site for the first 2 to 3 weeks
following hatching (Connelly et al.
2004, p. 4–8). Forbs and insects are
essential nutritional components for
chicks (Connelly et al. 2004, p. 4–9).
Therefore, early brood-rearing habitat
must provide adequate cover adjacent to
areas rich in forbs and insects to ensure
chick survival during this period
(Connelly et al. 2004, p. 4–9).
Approximately 12 weeks after
hatching, sage-grouse gradually move
from sagebrush uplands to more mesic
(wet) areas during the late brood-rearing
period (Peterson 1970, p. 149) as
herbaceous vegetation dries during the
hot summer (Connelly et al. 2000a, p.
971). Summer use areas can include
sagebrush habitats as well as riparian
areas, wet meadows, and Medicago spp.
(alfalfa) fields (Schroeder et al. 1999, p.
4). These areas provide an abundance of
forbs and insects for both females and
chicks (Schroeder et al. 1999, p. 4;
Connelly et al. 2000a, p. 971). Males and
broodless females will also use more
mesic areas in close proximity to
sagebrush cover during the late summer,
often arriving before females with
broods (Connelly et al. 2004, p. 4–10).
During the winter, sage-grouse
depend almost exclusively on sagebrush
for both food and cover (Thacker et al.
2012, p. 588). Winter areas are
characterized by large expanses of big
sagebrush and tall shrubs,
predominantly located on relatively
gentle south- or west-facing slopes that
provide more favorable thermal
conditions and above snow forage
(Doherty et al. 2008, p. 192; Hagen et al.
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2011, p. 536; Dzialak et al. 2013, p. 16).
The timing of movement to winter
ranges varies considerably, but peaks
around mid-October through late
November (Schroeder et al. 1999, p. 10).
Sage-grouse exhibit fidelity to winter
sites (Berry and Eng 1985, p. 239);
however, some birds shift winter habitat
use in response to severe conditions
(Smith 2010, p. 8).
The availability of winter habitat is
important to sage-grouse persistence.
Across the range of sage-grouse, winter
habitat comprised from 6.8 to 18 percent
of the total landscape used by different
populations (Dzialak et al. 2013, p. 10;
Smith et al. 2014, p. 12). Winter habitat
availability is reduced during severe
winters when heavy snowfall and
increasing snow depths further decrease
or even eliminate access to sagebrush.
During harsh winters, birds become
even more concentrated in the few
remaining areas of exposed sagebrush
(Hupp and Braun 1989, p. 828). As a
result, the loss of winter habitats used
in harsh winter conditions can have
impacts disproportionate to their
makeup on the landscape (Swenson et
al. 1987, p. 128). During the average
winter, sage-grouse typically experience
low over-winter mortality, estimated at
2 to 4 percent, but could be as high as
15 percent (Connelly et al. 2000b, p.
229; Wik 2002, p. 40; Sika 2006, p. 90;
Bruce et al. 2011, p. 421). During
notably severe winters, however, higher
mortality rates have been documented
(Moynahan et al. 2006, p. 1,536;
Anthony and Willis 2008, p. 544). In
some cases, the locations of these
wintering habitats are known, but there
is not a consistent data set of this
information across the range of the
species.
The distances sage-grouse move
between seasonal habitats are highly
variable across the occupied range
(Connelly et al. 1988, pp. 119–121).
Sage-grouse may migrate between two
or three distinct seasonal ranges, or not
migrate at all. Non-migratory sagegrouse have seasonal movements of less
than 10 km (6.2 mi; Connelly et al.
2000a, pp. 968–969), while birds in
migratory populations (which are
discussed in detail below) may travel
well over 100 km (62 mi) (Tack et al.
2012, p. 65).
Despite the documentation of
extensive seasonal movements in this
species (Fedy et al. 2012, p. 1066; Tack
et al. 2012, p. 65; Davis et al. 2014, p.
716), the dispersal abilities of sagegrouse are assumed to be low. One
study estimated median natal dispersal
distances of 8.8 km (5.5 mi) for females
and 7.4 km (4.6 mi) for males (Dunn and
Braun 1985, p. 622); another study
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estimated natal dispersal distances of
3.8 km (2.4 mi) for males and 2.7 km
(1.7 mi) for females (Thompson 2012, p.
193). Small-scale differences in habitat
are not likely to influence sage-grouse
dispersal at landscape scales. Rather,
the arrangement of habitat quality was
more influential on sage-grouse
dispersal (Row et al. 2015, pp. 1964–
1965) than the presence of unsuitable
habitats.
Sage-Grouse Connectivity and
Landscape Genetics
Habitat-based measures show that
maintaining population connectivity is
essential for sage-grouse population
persistence. Connectivity between sagegrouse populations declined from 1965
to 2007 due to the loss of leks that
historically provided connectivity and
lower numbers of birds left to disperse
(Knick and Hanser 2011, p. 395). As
connectivity declined, isolated leks,
those leks with low connectivity, were
lost first (Knick and Hanser 2011, p.
395), with small decreases in lek
connectivity resulting in large increases
in probability of lek abandonment
(Knick and Hanser 2011, p. 403). This
suggests that as connectivity between
leks at the edge of the range is lost, the
probability these leks will persist is
likely to decline (Knick and Hanser
2011, p. 396).
Maintaining sagebrush distribution is
the most important factor in
maintaining sage-grouse population
connectivity (Knick and Hanser 2011, p.
404). Habitat loss decreases the
connectivity between seasonal habitats,
increasing the potential that a
population may be lost (Doherty et al.
2008, p. 194). Loss of connectivity can
increase population isolation (Knick
and Hanser 2011, p. 402 and references
therein) and, therefore, lead to a higher
probability of loss of genetic diversity
and extirpation due to stochastic events.
Habitat fragmentation, habitat loss, and
altered habitat disturbance regimes (e.g.,
fire frequency), rather than stochastic
events, were identified as the likely
primary influences on sage-grouse
population trend (Knick and Hanser
2011, p. 403). Large areas of unsuitable
habitat, such as mountain ranges, have
been found to segregate sage-grouse and
restrict genetic mixing (Row et al. 2015,
p. 1965; Crist et al. 2015, p. 16).
Studies of genetic information among
populations have revealed patterns of
sage-grouse movement and isolation
across the landscape. A genetic analysis
revealed that the movement of
individuals tends to be among
neighboring populations and is unlikely
to occur over great distances (OylerMcCance et al. 2005, entire; Oyler-
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McCance and Quinn 2011, p. 91).
Genetic analysis further indicated that
sage-grouse in fragmented areas on the
periphery of the range in Colorado,
Utah, and Washington were not
extensively moving between or breeding
with other nearby populations (OylerMcCance and Quinn 2011, p. 92).
A recent analysis shows that core
population centers and the habitat
between those centers are important for
maintaining connectivity (Crist et al.
2015, p. 18). This study examined the
connectivity of populations across the
range of sage-grouse and found that 20
of 188 priority areas contributed the
most to range-wide connectivity (Crist et
al. 2015, p. 11). These results affirm the
conclusion by Knick and Hanser (2011)
that relatively large populations in
southwestern Wyoming, and straddling
the borders between Idaho, Nevada,
Oregon, and Utah, were the most highly
connected areas within the range of
sage-grouse (Crist et al. 2015, p. 11) and,
therefore, essential to species
persistence. However, other priority
areas likely contribute to maintaining
connections by serving as habitat
pathways between and within priority
areas, or by maintaining local
connectivity in an area (Crist et al. 2015,
p. 11). Active management will be
essential to maintain connectivity
between priority areas and to ensure
long-term species persistence (Crist et
al. 2015, p. 16).
Population Abundance and Trends
Estimating population sizes and
trends of sage-grouse is difficult due to
the large, 11-State range of the species,
incomplete sampling, and challenges
counting females (Garton et al. 2011, pp.
295–296). As a result, sage-grouse
population sizes are estimated from
counts of male sage-grouse on leks
during the breeding season (Garton et al.
2011, p. 296). While lek surveys do not
provide an accurate estimate of total
population, the annual counts of males
on leks provide the best indicator of
sage-grouse trends (Stiver et al. 2006, p.
3–2; WAFWA 2015, p. 2). The
relationship of lek survey data to actual
population size is unknown (WAFWA
2008, p. 3). When counts are done
according to a standardized protocol,
these counts can be a useful metric of
long-term population trends (Connelly
et al. 2004, p. 6–6; Johnson and
Rowland 2007, p. 20; WAFWA 2008, p.
3, Blomberg et al. 2013a, p. 1590,
Gregory and Beck 2015, p. 7).
Recent work by MacKenzie and Evans
(2015) has indicated the current
sampling framework across the range of
sage grouse which makes interpreting
trend and population data difficult.
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However, their analysis has indicated
that there has been a long-term decline
in the number of males per lek which
is consistent with other recent trend
analyses (Garton et al. 2015 and
WAFWA 2015). The analysis goes on to
indicate that over time and in virtually
all management zones the probability of
extinction of leks has been relatively
stable. Additionally, the probability of
recolonization of leks had been
decreasing until the mid-1990s but that
probability has stabilized to the current
point in time. The conclusion of this
work indicates that over the last 15
years the rate of extinction of leks and
the probability of recolonization of leks
has been remarkably stable.
Sage-grouse populations increase and
decrease over time, making assessments
of population size and short-term trends
difficult. The length of these population
cycles appears to vary across the range,
but most populations have an 8- to 10year population cycle (Rich 1985, pp.
5–8; Fedy and Doherty 2011, pp. 919–
922). The drivers of the cycle are
unknown, but may be caused by the
amount and timing of precipitation
(Rich 1985, p. 14; Fedy and Doherty
2011, p. 921).
In the 2010 finding, we concluded
that rangewide, sage-grouse were
experiencing a long-term decline in
abundance (75 FR 13910, March 23,
2010, pp. 13920–13923). We noted the
difficulty in determining the actual rate
and magnitude of the declines, but
noted that three independent studies
had concluded that declines were
occurring (Connelly et al. 2004, p. 6–71;
WAFWA 2008, p. 12; Garton et al. 2011,
pp. 307–359). In particular, the 2008
WAFWA analysis of lek-count data
collected from 1965 to 2007 estimated a
long-term decline of 3.1 percent per year
during 1965 to 2007 (WAFWA 2008, p.
12). That assessment also found the rate
of decline slowed from 1985 to 2007 to
an average annual decline of 1.4 percent
(Connelly et al. 2004, p. 6–71; WAFWA
2008, p. 58). A 2011 study (Garton et al.
2011, entire) assessed declining trends
similar to the Connelly et al. (2004) and
WAFWA (2008) analyses. Garton et al.
(2011, p. 374) also predicted future
population declines.
Both Garton et al. (2011) and
WAFWA (2008) have updated their lek
trend analyses to include additional
data from 2013 through 2015 (Garton et
al., 2015; WAFWA 2015). Garton et al.
(2015) examined the trend in the years
1965–2013 and reported that the rate of
decline has decreased for MZs I, II, and
VI when compared to their previous
analyses (1965–2007). There was
insufficient data from the other MZs to
do a similar comparison, but the
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updated analyses suggest that MZs I–VI
have all experienced a long-term
abundance decline (Garton et al. 2015).
Insufficient data in MZ VII prevented a
trend analysis in both Garton et al. 2011
and Garton et al. 2015. The updated
WAFWA analyses reported declines in
all MZs since 1965, with the exception
of MZ III, where a slight increase was
noted. In MZ III, the increasing trend
was not uniform across the management
zone, as peripheral populations are
continuing to decline. The rates of
decline have increased in MZs I and V
in recent years (WAFWA 2015, pp. 17,
26), while the overall rate of decline
across the species’ range has slowed in
recent years. In five MZs, most of the
population estimates are primarily
trending down at the periphery of the
species’ range (WAFWA 2015, p. 1),
indicating that the denser, interior
population areas are more insulated
from declining trends. The number of
males counted on leks range-wide in
2015 has increased 63 percent since the
most recent population trough in 2013
(WAFWA 2015, p. 1).
Analysis of trend data is sensitive to
the start and stop dates of the period
analyzed due to the cyclic nature of
sage-grouse populations. Garton et al.
(2015) examined data only through
2013, at which time most populations
were experiencing a cyclic decline. Lek
counts increased in nearly all locations
in 2014 and 2015 (WAFWA 2015, p. 1).
However, both updated trend analyses
are consistent with previous studies
showing a long-term rangewide decline
of sage-grouse has occurred since 1965
(75 FR 13910, March 23, 2010, p.
13922). The rate of decline lessened
during 1985 to 2007, with an average
annual decrease of 1.4 percent
(Connelly et al. 2004, p. 6–71; WAFWA
2008, p. 58). The updated WAFWA
analysis reported that, rangewide, rates
of declines were less for the past 10
years (2005–2015) than the long-term
decline rates (1965–2015) (WAFWA
2015, pp. 10–11).
Abundance and Distribution Models
We developed two models for use in
this status assessment: (1) Population
Index Model and (2) Occupied Breeding
Habitat Distribution Model. These
models were developed to evaluate risk
to sage-grouse populations and benefits
of conservation actions designed to
ameliorate those risks. Our models, built
with collaboration from WAFWA, are
used as metrics for risk analyses and
general Geographic Information System
(GIS) queries. Full discussions of how
the models were created and used are
below.
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Occupied Breeding Habitat Distribution
Model uses sage-grouse lek data as a
proxy for landscapes important to
breeding sage-grouse, because leks are
central to the breeding ecology of sagegrouse. We developed a model that
statistically links habitat characteristics
around known lek locations to habitat
features such as the amount of
sagebrush or tree cover within a 6.4-km
(4-mi) radius. The output of the model
is a prediction of the probability that
each 120-m2 (393-ft2) area within a sagegrouse management zone provides
habitat to support a breeding population
of sage-grouse (Figure 2). These spatial
predictions of occupied breeding habitat
are then able to be linked with spatially
explicit risk models to better understand
how potential impacts to sage-grouse
overlap with breeding habitat. A
consistent data set for other important
seasonal habitat is not available, so
while the model may not specifically
include other seasonal habitats, it is the
best available information for predicting
impacts to the species consistently
across the range. This model was the
primary tool used to assess how the
location and scope of potential threats
may impact the species currently and
into the future (see Summary of
Information Pertaining to the Five
Factors, below).
We developed the Population Index
Model to spatially identify Core Areas
on the landscape that contain
population centers of sage-grouse
(Figure 3). We did this because sagegrouse populations are highly clumped,
and relatively small areas can contain a
disproportionate amount of sage-grouse.
To create our Population Index Model,
we used lek data to identify hotspots
using standard statistical methods. We
used the Occupied Breeding Habitat
Distribution Model to develop our final
Population Index Model. The model
results are grids that represent an index
to the relative amount of breeding birds
for each 120 m2 (393 ft2) within
management zones. Similar to our
Occupied Breeding Habitat Distribution
Model, our Population Index Model can
be linked with other spatially explicit
risk models or conservation actions to
understand spatial overlap with sagegrouse populations. We would expect
high levels of future impacts to occur if
current sage-grouse population centers
overlap areas with high probabilities of
future land use activities. Conversely,
we would expect future impacts to be
low, if current sage-grouse population
centers do not overlap areas with high
probabilities of future land use
activities. The Population Index Model
was used to assess potential impacts
from Nonrenewable Energy and
Agricultural Conversion (see Summary
of Information Pertaining to the Five
Factors, below).
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In the 2010 finding, we assessed
impacts to sage-grouse and their habitat
based on the portion of occupied range
where a disturbance occurred. This
approach was based on the best
available GIS data at that time, but may
have overestimated some impacts,
because all lands within the occupied
range were assumed to provide habitat.
We used this analysis in 2010 because
current information available to us
about the occupied sage-grouse range
was developed at a very broad scale and
included large areas of non-habitat. The
Occupied Breeding Habitat Distribution
Model was developed to more
accurately portray the breeding areas
that are important to sage-grouse. The
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Unfortunately we did not receive
population or habitat data from the two
Canadian provinces within the species
range and, therefore, could not include
these areas in our modeling efforts. The
abundance of sage-grouse is low in both
Canadian provinces (Alberta
Environment and Sustainable Resource
Development 2013, p. 8). Due to the low
number of birds remaining in Canada,
coupled with the limited amount of
existing habitat in Canada, we do not
anticipate that the exclusion of these
areas affects the outcome of this rangewide model.
Population Abundance and Trends
Summary
Estimating sage-grouse abundance is
difficult due to changes in seasonal
distributions, the cryptic coloration, and
behavior of females and their offspring,
and the lack of a systematic survey
protocol and sampling scheme across
the range of the species (WAFWA 2015,
pp. 44–46). Lek counts do not provide
a precise estimate of population size;
however, these counts provide a useful
index to the population size that detects
population changes over time (Johnson
and Rowland 2007, p. 20). Although an
imperfect measure, peak counts of males
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on leks are the best available
information about the number of sagegrouse in an area (Johnson and Rowland
2007, p. 20) and are the accepted
method to assess sage-grouse abundance
trends (WAFWA 2015, p. 2; Garton et al.
2015, entire).
Information reviewed for the 2010
finding indicated a long-term decline of
sage-grouse abundance since lek count
surveys were initiated in the 1960s.
New information since 2010 confirms
that long-term declines have occurred
from 1965 to 2014 across all MZs where
sufficient data exist to make inferences
(Garton et al. 2011, 2015, entire;
WAFWA 2008, 2015, entire). While
models agree about downward
abundance trends since the 1960s, the
actual rates of decline differ among MZs
and studies. Our confidence in these
rates of decline is limited due to a
variety of statistical sampling issues
associated with counting peak males on
leks (see Johnson and Rowland 2007,
pp. 17–20), as well as the cyclic nature
of sage-grouse populations. Regardless,
the best information available indicates
that the rangewide population of sagegrouse is declining.
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Changes Since the 2010 Finding
The landscape of the western United
States has undergone significant
changes since the onset of European
settlement, including the dramatic
alteration of key sage-grouse habitats.
Despite human population growth and
accompanying development, sagebrush
habitats persist on millions of acres
across 11 States in the west. Sage-grouse
numbers have declined since preEuropean settlement, but sage-grouse
distribution (Figure 3) has remained
relatively unchanged since our first
status review in 2005 (70 FR 2244,
January 12, 2005). In other words,
despite historical and current
population declines, sage-grouse are
still distributed throughout their range.
The 2005 status review found that,
despite a growing number of serious
threats, large numbers of birds
continued to be distributed across the
range (70 FR 2244, January 12, 2005, p.
2279). At that time, 92 percent of the
known active leks occurred in 8 of 41
populations; 5 of those populations
were so large and expansive that they
were subdivided into 24 subpopulations
to facilitate analysis (Connelly et al.
2004, p. 13–4). We subsequently
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determined that the species did not
warrant listing, but emphasized the
need for ongoing sage-grouse and
sagebrush conservation efforts to
moderate the rate and extent of habitat
loss for the species in the future (70 FR
2244, January 12, 2005, p. 2279).
Following the 2005 finding, the Western
Association of Fish and Wildlife
Agencies (WAFWA) released a
rangewide conservation strategy for
sage-grouse, which established an
overarching goal of maintaining and
enhancing populations and distribution
of sage-grouse ‘‘by protecting and
improving sagebrush habitats and
ecosystems that sustain these
populations’’ (Stiver et al. 2006, p. i).
The WAFWA conservation strategy
included actions such as increasing
capabilities in habitat restoration,
habitat conservation, research, and
improving regulatory mechanisms. The
WAFWA conservation strategy also
identified quantifiable conservation
goals (Stiver et al. 2006, pp. 1–8).
In 2010, we conducted a second status
review for sage-grouse (75 FR 13910,
March 23, 2010, entire). Although the
species remained widely distributed
across the landscape, we found it
warranted for listing under the Act due
to continued loss and fragmentation of
habitat exacerbated by a lack of
adequate regulatory mechanisms to
address habitat loss. The primary
drivers of habitat fragmentation
identified were renewable and
nonrenewable energy development in
prime sage-grouse habitats, continued
expansion of supporting infrastructure,
the spread of invasive annual grasses
and associated changes in wildfire
regimes, and the lack of adequate
regulatory structures to address these
impacts. In addition, trend data showed
a continuation of population declines
identified in 2005. Without regulatory
mechanisms in place to control
continued habitat loss and
fragmentation, we determined the sagegrouse was at risk of extinction in the
foreseeable future and, therefore,
warranted protection under the Act.
However, due to the workload of
managing higher priority species, we
designated the sage-grouse a
‘‘candidate’’ species, assigning it a
listing priority number of 8 to indicate
the moderate magnitude of imminent
threats. Species with lower listing
priority numbers are addressed before
those with higher priority numbers.
We also concluded that the extinction
risk was not imminent. As noted in the
2010 finding when determining its
listing priority status: ‘‘We consider the
threats that the sage-grouse faces to be
moderate in magnitude because the
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threats do not occur everywhere across
the range . . . and where they are
occurring they are not of uniform
intensity or of such magnitude that the
species requires listing immediately to
ensure its continued existence. While
sage-grouse habitat has been lost or
altered in many portions of the species’
range, substantial habitat still remains to
support the species in many areas of its
range. We believe the ability of these
population centers to maintain high
densities in the presence of several
threat factors is an indication that the
magnitude of threats is moderate
overall’’ (75 FR 13910, March 23, 2010,
pp. 14008–14009). The 2010 finding has
galvanized a rangewide conservation
effort that includes new management
plans developed by Federal and State
agencies to establish regulatory
mechanisms adequate to address
identified threats.
New Scientific Information
Since 2010, the already voluminous
scientific literature on sage-grouse has
been augmented by extensive, newly
published research on sage-grouse
biology, sagebrush habitat, and impacts
to both. We collected this information
for our status review through a direct
request to our conservation partners and
through general literature reviews. We
have used this data to inform our
understanding of the current status of
sage-grouse and how its status has
changed since 2010. All relevant
published resources, as well as
unpublished data, were considered in
our status review. Not all of this new
information is cited in this document, as
it either did not provide additional
information on impacts to the species or
response to conservation, or was
repetitive of other studies already cited
in our assessment. In addition, we
considered all new scientific
information presented to us in response
to our data call for this status review,
information received during our
previous annual Candidate Notice of
Review data calls, data entered into the
Conservation Efforts Database (CED),
and recently published articles. Several
articles providing new information
since 2010 are summarized below.
New population trend analyses
incorporating up to 7 years of additional
data have been completed (Garton et al.
2015, WAFWA 2015) and provide
greater insight into population cycling
and species status. We recognize the
difficulty in detecting short-term trends
for a species with decadal cycles; longer
term trends show a small, but detectable
decline since the 1960s. For more
information, see Population Abundance
and Trends section, above.
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An evolving appreciation of
mechanisms that affect sage-grouse and
sagebrush habitats assisted in the
development of new applied science for
conservation efforts, including wildfire
and invasive management (Chambers et
al. 2014a, entire), conifer removal
(Miller et al. 2014, entire), and energy
development (Patricelli et al. 2013,
entire; Drouin 2014). These important,
applied conservation tools have been
essential in assessing species and
habitat persistence and aiding the
minimization of impacts to the species
and its habitat. Specifically, the
resilience and resistance matrix
developed by WAFWA and published
in 2014 provided a new applied science
framework to better understand the
likelihood of habitats to ability to resist
Bromus tectorum (cheatgrass) invasion
and recover following wildfire
(Chambers et al. 2014a, entire).
Conservation actions designed to
minimize risk have also been furthered
by application of new scientific
information and tools. For example, the
Natural Resources Conservation Service
(NRCS) Sage Grouse Initiative (SGI) has
incorporated new scientific research on
impacts to guide the development of
grazing plans, conifer removal, fence
marking, and other conservation actions
on private lands to benefit sage-grouse
and its habitat (NRCS 2015a, entire).
The U.S. Geological Survey (USGS)
compiled the findings of published
scientific literature evaluating the
influence of human activities and
infrastructure on sage-grouse (Manier et
al. 2013, entire). An additional report
(Manier et al. 2014, entire) provided
information on biologically relevant
buffer distances around sage-grouse
habitats to help reduce habitat
avoidance caused by human disturbance
and infrastructure. The revised and
amended BLM and USFS Federal Plans
adopted and incorporated the
recommendations in the Manier et al.
report (2014), as discussed below in the
Sagebrush Landscape Conservation
Planning section. These new analyses
and tools, plus all the other information
we considered, are addressed
throughout this document and our
administrative record.
Many partners across the range of the
sage-grouse are working to conserve
sage-grouse habitat. In 2014, we
developed the CED, a spatially explicit,
online platform for efficiently collecting
data from conservation partners about
their sage-grouse conservation efforts.
More than 100 partners across the range
of the species entered information about
6,200 projects into the CED. Of these
projects, 44 percent (2,700 projects)
cover more than 1.2 million ha (3
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documents to outline the conservation
needs of the species and its habitat.
In 2011, the BLM assembled a
National Technical Team (NTT) of sagegrouse and sagebrush habitat experts to
identify the best available science-based
information to guide the development of
Federal land management plans for the
greater sage-grouse (BLM 2011a, entire).
The NTT Report proposed conservation
measures based on habitat requirements
and other life-history aspects of the
species. The NTT Report also described
the scientific basis for some of the
conservation measures proposed within
each of the Federal land planning
program areas. These conservation
measures included actions such as
development of sage-grouse specific
habitat objectives relative to domestic
livestock management, criteria to inform
leasing decisions in sage-grouse
habitats, and monitoring of sage-grouse
and their habitats (BLM 2011a, entire).
Sagebrush Landscape Conservation
Planning
Conservation Objectives Team Report
The expansive range of sagebrush
habitat has compelled managers to take
a landscape approach to conservation
efforts, with sage-grouse assuming the
focus of these efforts for the past decade.
In 2006, WAFWA developed a
comprehensive strategy for conserving
habitat for the benefit of this species.
The strategy outlined the need to
develop partnerships among local, State,
Provincial, Tribal, and Federal agencies,
non-governmental organizations, and
private landowners to design and
implement cooperative actions to
support robust populations of sagegrouse and the landscapes and habitats
upon which they depend (Stiver et al.
2006, p. i). This was the first of several
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million ac) and were deemed complete
and effective at addressing the primary
threats identified in the Conservation
Objectives Team (COT) Report (See
Sagebrush Landscape Conservation
Planning section below for a description
of this report) (USFWS 2013, entire).
Examples of these projects include
conservation easements, conifer
removal, and treatments to remove or
reduce invasive weeds and annual
grasses. The other 3,500 projects (56
percent), as reported in the CED, were
of more limited scope and scale; and
some did not contain enough
information for us to reliably assess
their effectiveness or implementation
even on a local scale. Thus, while these
efforts will continue to be helpful in
conserving sage-grouse and its habitat
now and into the future, we took a
conservative approach and did not rely
on these efforts in this finding.
In 2013, we, together with the States,
chartered a team of sage-grouse and
habitat experts to identify the
conservation goals for the species. The
Conservation Objectives Team (COT)
Report was a ground-breaking,
collaborative approach to develop
rangewide conservation objectives for
the sage-grouse, both to inform this
finding and to inform the collective
conservation efforts of the many
partners working to conserve the species
(USFWS 2013, entire). The highest level
objective identified in the COT Report is
minimization of habitat threats to the
species so as to meet the objective of the
2006 WAFWA Greater Sage-grouse
Comprehensive Conservation Strategy:
Reversing negative population trends
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and achieving a neutral or positive
population trend.
The conservation principles of
redundancy, representation, and
resilience guided the development of
the conservation goals, priority areas for
conservation, conservation objectives,
and measures included in the COT
Report (USFWS 2013, p. 12). The COT
Report found that satisfying these
conservation principles for sage-grouse
meant having multiple, geographically
distributed populations across the
species’ range (USFWS 2013, p. 12). The
COT Report further stated, ‘‘By
conserving well distributed sage-grouse
populations across geographic and
ecological gradients, species adaptive
traits can be preserved, and populations
can be maintained at levels that make
sage-grouse more resilient in the face of
catastrophes or environmental change’’
(USFWS 2013, pp. 12–13).
In particular, the COT Report, using
State information, identified the habitats
most critical for the conservation of the
species, which were described as
Priority Areas for Conservation (PAC,
Figure 4) (USFWS 2013, entire). Priority
Areas for Conservation are ‘‘. . . the
most important areas needed for
maintaining sage-grouse representation,
redundancy and resilience across the
landscape’’ (USFWS 2013, p. 13).
Identifying PACs ensured that
conservation partners direct their efforts
to the highest priority habitats. Since
the completion of the COT Report,
improved habitat mapping and further
discussions with the States has resulted
in changes to the PAC map in Nevada,
Montana, and Utah. For the purposes of
this document, we refer to those areas
that were added as Important Priority
Areas.
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Federal and State Planning Efforts
As discussed above, in 2010 we
concluded that sage-grouse populations
were well-distributed across the
occupied range, but without the habitat
protections provided by adequate
regulatory mechanisms, populations
were likely to become smaller, fewer,
and separated by fragmentation, placing
the species at risk of extinction in the
future (75 FR 13910, March 23, 2010, p.
13986). Because the 2010 finding
indicated that adequate regulatory
protections could prevent the need to
list sage-grouse, numerous Federal and
State agencies undertook planning
efforts to improve regulatory
mechanisms and conserve sage-grouse
into the future. A centerpiece of all of
the conservation efforts is the protection
of the most important habitats for sagegrouse that are necessary to maintain
redundant, representative, and resilient
populations (i.e., PACs). These
important habitats for conservation were
identified in conservation planning
efforts (Figure 4) as the places where
large, undisturbed expanses of
sagebrush habitat were supporting leks
and the highest density of breeding
birds (USFWS 2013, p. 15). These
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important habitats for conservation also
correspond with the population centers
referred to in the 2010 finding. The
maintenance of these areas and the birds
that use them would provide a network
of resilient and connected populations
across the landscape that would provide
for long-term species viability.
Using the recommendations provided
in the COT Report (USFWS 2013, entire)
and the NTT Report (BLM 2011a,
entire), the Federal agencies developed
conservation strategies to protect the
important habitats for conservation.
These strategies focus not only on the
most important habitats for
conservation, but also on conservation
objectives to address the greatest threats
to the species, as identified in the COT
Report (USFWS 2013, pp. 31–52).
While 10 of the 11 States in the range
of the sage-grouse updated their State
plans to conserve the species by
incorporating new information, which is
a testimony to their concern and
commitment to protect the grouse and
its habitats, not all of these plans have
been implemented or are regulatory in
scope. We will specifically highlight the
regulatory conservation actions
mandated by the State plans in
Wyoming, Montana, and Oregon
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because they provide the greatest degree
of regulatory certainty in addressing
potential threats on State and private
lands not under the jurisdiction of
Federal plans. We appreciate the work
that each State has completed, but not
all planning efforts met a level of
certainty for implementation and
effectiveness. We acknowledge that
sage-grouse conservation plans have
been developed for Colorado, Idaho,
Nevada, North Dakota, South Dakota,
and Utah that could provide long-term
benefits to sage-grouse. For example, the
Idaho Plan includes the following
measures: Technical and monetary
assistance for fire rehabilitation and
restoration efforts in areas where
wildfire has impacted both State and
Federal lands; assistance with
implementation of Federal landscape
fuels management projects on lands
adjacent to Federal lands (such as the
extension of fuel break projects onto
State lands); development, coordination,
and training for Rangeland Fire
Protection Associations (RFPAs); and
adoption of a general strategy to reduce
Idaho Plan ownership of key habitat
within Core Habitat Areas through land
exchanges with BLM. We encourage all
of the States to fully implement their
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sage-grouse plans as they will further
contribute to the long-term conservation
of the sage-grouse.
In this section, we provide a summary
of the various conservation programs
and efforts put in place at the Federal,
State, and local levels that are most
important to our analysis of regulatory
mechanisms in addressing potential
threats to sage-grouse: The Federal
plans, State plans in Wyoming,
Montana, and Oregon; and the voluntary
conservation efforts on private lands
provided by SGI and Candidate
Conservation Agreements with
Assurances (CCAAs). The Wyoming
Plan is analyzed based on its 7-year
track record of implementation, and SGI
is also analyzed based on its
accomplishments to date.
The sections below provide an
analysis of the implementation and
effectiveness of the Federal plans,
Montana program, Oregon efforts, and
Secretarial Order 3336 pursuant to our
Policy for Evaluation of Conservation
Efforts (PECE) (68 FR 15100, March 28,
2003). The purpose of PECE is to ensure
consistent and adequate evaluation of
recently formalized conservation efforts
when making listing decisions. The
policy provides guidance on how to
evaluate conservation efforts that have
not yet been implemented or have not
yet demonstrated effectiveness. The
evaluation focuses on the certainty that
the conservation efforts will be
implemented and the effectiveness of
the conservation efforts to contribute to
make listing a species unnecessary. In
this finding, we evaluated the certainty
that the Federal Plans, and the Montana
and Oregon Plans will be implemented
into the future and the certainty that
they will be effective in addressing
threats, based on the best available
science and professional
recommendations provided in the COT
and other scientific literature and
reports. We also evaluated the
Secretarial Order using PECE, which is
discussed below in the Wildfire and
Invasive Plants section.
The Federal plans and three State
Plans provide protective, regulatory
mechanisms for the majority of the most
important habitat for sage-grouse. The
Federal Plans divide habitat into two
habitat management area categories—
Priority Habitat Management Areas
(PHMAs) and General Habitat
Management Areas (GHMAs). Priority
Habitat Management Areas largely
correspond to PACs (USFWS 2013, p.
13) and State-identified Core Areas
(BLM and USFS 2015, entire). The
PHMAs are the highest priority for
conservation because they contain large,
undisturbed expanses of breeding
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habitat and the highest densities of sagegrouse. The most restrictive
conservation measures, such as
excluding certain activities and
requiring avoidance and minimization
measures, apply to 64 percent of the
species’ breeding habitat designated as
PHMAs (USFWS 2015a). The Federal
and three State plans protect an
additional 26 percent of breeding
habitat in GHMAs (USFWS 2015a) that
contain fewer leks and sage-grouse than
PHMAs, but provide habitat and
connectivity between populations. As
discussed above in Sage-Grouse
Connectivity and Landscape Genetics,
connectivity between core population
areas has been identified as an
important strategy to ensure long-term
sage-grouse persistence (Crist et al.
2015, p. 17). The required conservation
measures in GHMAs are less restrictive
than in PHMAs and provide greater
land-use flexibility, but still deliver
measures that minimize potential
impacts. To assess the effectiveness of
the Federal Plan, we completed a
geospatial analysis of how much the
areas designated as PHMAs and GHMAs
overlapped with areas modeled as
breeding habitat. Collectively, the
regulatory mechanisms provided by the
Federal plans and three State plans
reduce potential impacts to
approximately 90 percent of the sagegrouse breeding habitat rangewide
(USFWS 2015a). Later in this document,
we will discuss how all of these
conservation efforts are expected to
address adverse effects from potential
threats, and lastly, we will assess the
adequacy of these efforts as regulatory
mechanisms (See Regulatory
Mechanisms, below).
Federal Plans
The BLM and USFS sage-grouse
planning effort was unprecedented in
scope and scale, and represents a
significant shift from management
focused within administrative
boundaries to managing at a landscape
scale. This effort also represented a
concerted effort by the agencies to
balance their multiple-use mandates
with conservation objectives. The BLM
and USFS completed this effort by
issuing amendments or revisions to 98
land management plans governing over
half of the occupied range. These land
management plans are the principal
regulatory documents for the activities
allowed on BLM and USFS lands, are
grounded in the agencies’ organic
statutes (e.g., Federal Land Management
and Policy Act, National Forest
Management Act), and are at the core of
the agencies’ National Sage-Grouse
Conservation Strategy outlined in their
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plan revisions and amendments. We
were a key partner working closely with
BLM and USFS throughout the process
to develop and complete the Federal
Plans. In this section, we will discuss
the Federal plans across the 11-State
range of sage-grouse, except for the
plans in Wyoming. For Wyoming,
because the Federal and State plans
work together to conserve sage-grouse
on all lands, they will be discussed
together in a separate section below.
The BLM and USFS have broad
authorities to manage the lands and
resources within their jurisdiction. The
Federal Land Policy and Management
Act of 1976 (FLPMA) (43 U.S.C. 1701 et
seq.) is the primary Federal law
governing most land uses on BLMadministered lands and directs
development and implementation of
Resource Management Plans, which
direct management at a local level.
Resource Management Plans are the
basis for all actions and authorizations
involving BLM-administered lands and
resources. Management of activities on
National Forest System lands is guided
principally by the National Forest
Management Act (NFMA) (16 U.S.C.
1600–1614, August 17, 1974, as
amended). The NFMA specifies that the
USFS must have a Land and Resource
Management Plan (16 U.S.C. 1600) to
guide and set standards for all natural
resource management activities on each
National Forest or National Grassland.
For the purposes of this document,
Resource Management Plans and Land
and Resource Management Plans are
collectively referred to as Federal Plans.
Under FLPMA, the BLM is required to
establish Resource Management Plans
for the management and use of public
lands in accordance with the principles
of multiple-use and sustained-yield.
Similarly, pursuant to the NFMA, the
USFS is required to establish plans for
the management and use of National
Forest System lands in accordance with
the principles of multiple-use and
sustained-yield. The Federal Plans are
the basis for on-the-ground actions that
the BLM and USFS undertake and
authorize. Decisions in Federal Plans
guide future land management actions
and subsequent site-specific
implementation decisions. Land use
plan decisions establish goals and
objectives for resource management
(desired outcomes) and the measures
needed to achieve these goals and
objectives (land use allocations for the
BLM; Standards and Guidelines for the
USFS).
These Federal Plans are regulatory
mechanisms. The Federal Plans
establish goals and objectives and
measures to address the potential
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threats to sage-grouse and sage-grouse
habitat. The Federal Plans establish
mandatory constraints and were
established after notice and comment
and review under the National
Environmental Policy Act (NEPA).
Therefore, changes to the Federal Plans
would require additional notice and
comment and further analysis under
NEPA. All future management
authorizations and actions undertaken
within the planning area must conform
to the Federal Plans, thereby providing
reasonable certainty that the plans will
be implemented. The BLM has already
made substantial financial commitments
to ensure success of actions identified in
their Plans, including allocating more
than 10 million dollars to support fire
management (DOI 2015a, entire). In
2015, BLM directed resources to fund
monitoring crews, and funded activities,
like data management, to ensure
successful implementation of the
monitoring commitments; and BLM’s
fiscal year 2016 budget request included
an additional 8 million dollars to
directly support monitoring the
implementation and effectiveness of the
land use plans (Lueders, BLM, 2015,
pers. comm.). The Department of the
Interior identified additional highpriority actions that the BLM will
complete in the next 5 years including
prioritizing control of invasive plants
and removal of free-roaming equids
from high-priority sage-grouse habitat
(DOI 2015a, entire). Based upon past
Federal land planning efforts, we expect
these plans to be implemented for the
next 20–30 years. The BLM and USFS
have committed to full funding and
implementation of these plans, and have
included monitoring and adaptive
management to ensure their long-term
effectiveness.
The Federal Plans represent a
paradigm shift in western Federal lands
management in their focus on
maintaining large expanses of the
sagebrush ecosystem for the benefit of
sage-grouse and many other species.
Federal Plans are structured around a
layered management approach that aims
to preclude or minimize additional
surface disturbance in priority
conservation habitats, while providing
some management flexibility in sagegrouse habitat areas that are less critical
for conservation. In addition to these
land use allocations and associated
conservation actions, the Federal Plans
include direction for wildfire and
invasive species management,
minimization measures, mitigation
strategies, monitoring, and adaptive
management that provide further
conservation benefits for sage-grouse, as
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discussed below. There are differences
across 98 plans as necessary to address
differing ecological conditions;
however, the general regulatory
framework is consistent amongst all the
plans. Because of the commitments from
the Federal Government to implement
these plans and because of the Plans’
consistency with the COT Report
recommendation for measures to reduce
threats, these Federal Plans provide
substantial conservation benefits to
sage-grouse, now and in the future
Land Management—The Federal
Plans adopt a tiered land use allocation
regime that provides the greatest level of
protection for the most important
habitats. We, together with State
agencies, helped the BLM and USFS
designate priority habitat areas using the
best available scientific data to identify
the location of the highest quality
habitat with the greatest number of
breeding sage-grouse. These areas
largely coincide with the PACs
identified in the COT Report (USFWS
2013, p. 14) and were designated by
BLM and USFS in the Federal Plans as
Priority Habitat Management Areas
(PHMAs) (BLM and USFS 2015, entire).
Based on our recommendation to further
protect sage-grouse population centers
that have been identified in the
scientific literature as critically
important for the species and areas
identified through our analysis as
important for conservation, BLM and
USFS designated areas as Sagebrush
Focal Areas (SFA) and added
protections that would further limit
new, human-caused surface disturbance
in SFAs. Lastly, BLM and USFS
designated General Habitat Management
Areas (GHMAs) that represent areas
with fewer leks and lower densities of
breeding birds where disturbance is
limited, while providing greater
flexibility for land use activities.
Federal Plans mapped approximately
27 million ha (67 million ac) of sagegrouse habitat, of which 14 million ha
(35 million ac) were designated as
PHMAs, 4.5 million ha (11 million ac)
were designated as SFAs (and overlap
generally with PHMAs), and 13 million
ha (32 million ac) were designated as
GHMAs (no habitat was mapped in
Washington, as minimal habitat occurs
on BLM and USFS land in that State).
The Federal Plans authorize and
establish allowable resource uses for
each of these Management Area
designations. The Federal Plans also
establish stipulations for certain
authorizations to protect resources.
Land use allocations of specific
activities are generally categorized as:
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• Exclusion/Closed: Areas that are not
available for development or use of particular
resources; or
• Avoidance: Areas to be avoided but may
be available for development or use of
particular resources with special stipulations;
or
• Open: Areas open to development or use
of particular resources, although use may be
restricted by stipulations.
Using this targeted and tiered
approach to habitat conservation, the
Federal Plans have a number of
components for conserving sage-grouse
and their habitats. The primary
components of the Federal Plans are a
combination of: (1) Land use
allocations; (2) human-caused
disturbance caps and density
limitations; (3) lek buffers; (4)
monitoring; (5) adaptive management;
(6) mitigation; and (7) a landscape-scale
strategy for addressing the threat of fire
and invasive grasses.
The BLM, USFS, and other partners
recognize the variability in habitat value
across sage-grouse habitat, both in terms
of habitat characteristics and habitat
quality. Priority sage-grouse habitats are
areas that have the highest conservation
value to maintaining or increasing
sage-grouse populations. These areas
include breeding, late brood-rearing,
winter concentration areas, and where
known, migration or connectivity
corridors (BLM 2011a, p. 7). The BLM
developed a rangewide Breeding Bird
Density Map to highlight locations
where the highest densities of breeding
males were found on leks (Doherty et al.
2010a). Using this information and
additional State agency expertise, BLM
highlighted seasonal habitats needed for
the sage-grouse (BLM 2011a, p. 7). In
those instances where the BLM State
offices did not complete this
delineation, BLM relied upon the
Breeding Bird Density maps (Doherty et
al. 2010a, entire; BLM 2011b, entire).
An Instructional Memorandum (IM; IM
2012–043) established two habitat
categories. Preliminary Priority Habitat
forms the basis for PHMA in the final
plans and represents the habitat
designated to maintain distribution and
sustainable sage-grouse populations
(BLM 2011b, entire). The second
category was Preliminary General
Habitat, the precursor to GHMA, which
represents areas with fewer leks and
lower densities of breeding birds where
disturbance is limited, while providing
greater flexibility for land use activities.
Many of these areas were already
impacted by human activities or
wildfire. General sage-grouse habitat is
described as occupied (seasonal or
year-round) habitat outside of priority
habitat (BLM 2011a, p. 9).
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discussion below analyzes PHMA and
GHMA separately to distinguish the
different management considerations in
the most important habitats (PHMA)
and the measures provided in other
occupied habitats (GHMA).
Priority Habitat Management Areas—
The BLM and USFS evaluated the
occupied habitat within their
jurisdiction and designated the areas
with the best habitat and the majority of
the leks as PHMAs. Approximately 14
million ha (35 million ac) were
designated as PHMA (Figure 5),
corresponding with approximately 64
percent of breeding habitat. The PHMA
consists of the most important habitat
on Federal lands occupied by the
species. Because this is the most
important habitat on Federal lands
within the range of the species, the land
use allocations and other measures are
more restrictive in these habitats. Below
we analyze the land use allocations and
other measures in the revised and
amended Federal Plans to conserve and
maintain these important habitat areas
on Federal lands. The Federal Plans in
Wyoming are discussed separately
below with the Wyoming State strategy
as they collectively address all lands in
Wyoming in a coordinated effort.
Fluid Minerals (Including Oil, Gas,
and Geothermal): Under the revised or
amended Federal Plans, PHMAs are
closed to new leasing or subject to
leasing with No Surface Occupancy
(NSO). No surface occupancy areas are
open to leasing, but human-caused
surface-disturbing activities, such as
development of well pads, cannot be
conducted on the surface of the land.
Access to oil and gas deposits would
require directional drilling from outside
the boundaries of the NSO areas. There
will be no waivers, exceptions, or
modifications, unless the following
condition is met: ‘‘A lease exception
may be considered where a portion of
the proposed lease is determined to be
in non-habitat, the area is not used by
sage-grouse, nor would it have direct,
indirect or cumulative effects to sagegrouse or its habitat. The determination
would be made by a team of agency
sage-grouse experts, including an expert
from the state wildlife agency, the
Service, and BLM/USFS. All exceptions
must be approved by the State
Director.’’ Further, priority will be given
to leasing and development of fluid
mineral resources, including
geothermal, outside of sage-grouse
habitat. The implementation of these
priorities will be subject to valid
existing rights and any applicable law or
regulation, including, but not limited to,
30 U.S.C. 226(p) and 43 CFR 3162.3–
1(h).’’
On existing leases, the BLM will work
with the lessees, operators, or other
project proponents to avoid, reduce and
mitigate adverse impacts to the extent
compatible with lessees’ rights to drill
and produce fluid mineral resources.
The BLM will work with the lessee,
operator, or project proponent in
developing for the lease an application
for a permit to drill to avoid and
minimize impacts to sage-grouse or its
habitat and will ensure that the best
information about the sage-grouse and
its habitat informs and helps to guide
development of such Federal leases. See
the Nonrenewable Energy section below
for a further discussion of valid existing
rights.
Fluid minerals land use allocation
decisions are more complex than the
typical open, avoidance, and closed/
exclusion decisions. Allocative
decisions within the Federal Plans for
fluid minerals can be one of the
following:
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• Open: These areas are open to leasing
with minor to no constraints, subject to
existing laws and regulations, and formal
orders, as well as any standard terms and
conditions.
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The Federal Plans focus on land use
management within these two
management areas (Figure 5). The
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• Open with moderate constraints: These
are areas where it has been determined that
moderately restrictive lease stipulations may
be required to mitigate impacts. These
stipulations include timing limitations and
controlled surface uses.
• Open with major constraints: These are
areas where it has been determined that
highly restrictive lease stipulations are
required to mitigate impacts.
• No Surface Occupancy (NSO): These
areas are open to leasing, but surfacedisturbing activities are precluded. Access to
oil and gas deposits would require
directional drilling from outside the
boundaries of the NSO areas. The NSO areas
are also avoidance areas for Rights-of-Way
(ROWs); no ROWs would be granted in NSO
areas unless there are no feasible alternatives.
• Closed: These are areas where it has been
determined that other land uses or resource
values cannot be adequately protected with
even the most restrictive lease stipulations
and appropriate protection can be ensured
only by closing the lands to leasing.
In 2010, there were few habitat
restrictions specific for sage-grouse for
fluid mineral leasing on Federal lands
within the range of the species. The new
land use allocations in the Federal Plans
designating PHMAs as either closed or
open with NSO restrictions represent an
unprecedented change in the
management of areas important for sagegrouse (PHMAs) with fluid mineral
potential. These land use allocations are
consistent with the COT Report
(USFWS 2013, p. 43) recommendations
to reduce and eliminate disturbance in
PACs. Closing areas to development and
requiring NSO with only very limited
exceptions, substantially reduces the
potential for future disturbance in
PHMAs. Considered together, these
measures avoid or minimize impacts to
fluid mineral development in priority
habitat for conservation; this signifies a
substantial improvement in the
effectiveness of regulatory mechanisms
since the 2010 finding.
Non-Energy Leasable Minerals: Under
the Federal Plans, PHMAs are closed to
new permits for non-energy leasable
minerals (e.g., phosphate, sodium,
potassium), but expansion of existing
operations could be considered, subject
to specific conditions outlined in the
plans. This provision reduces the
potential impacts from non-energy
leasable mineral development. The BLM
leases certain solid minerals on public
and other Federal lands. When mineral
rights owned by the Federal
Government underlie privately owned
surface lands, the BLM can also lease
these minerals. The restrictions in
PHMAs reduce the likelihood that
future development to non-energy
leasable minerals will occur in these
areas. Closing areas is an effective
measure to reduce disturbance.
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Mineral Materials: Since July 23,
1955, common varieties of sand, gravel,
stone, pumice, pumicite, and cinders
were removed from the General Mining
Law and placed under the Materials Act
of 1947, as amended. Use of salable
minerals requires either a sales contract
or a free-use permit (free permit for
personal, noncommercial use). Under
the Federal Plans, PHMAs are closed to
new mineral material sale with limited
exceptions for free use permits
(described below) and the expansion of
existing active pits, subject to
compensatory mitigation and
disturbance caps. Required design
features (RDF) will be applied to all free
use permits to minimize any potential
impacts. As with other mineral
development, disturbance in important
habitat areas will be minimized through
disturbance caps, lek buffers, and other
measures. The closure of PHMAs to the
sale of mineral materials effectively
eliminates new impacts from this
activity in PHMAs providing effective
conservation in the most important
habitats for the species.
Solar/Wind: The Federal Plans
generally exclude new utility scale and
commercial solar and wind
developments from PHMAs. Limited
exceptions must be based on an explicit
rationale that biological impacts to sagegrouse will be avoided. Rights-of-way
are required for wind testing, associated
development structures, or solar energy
development projects implemented on
public lands. In Nevada, California,
Utah, and Colorado, the Solar Energy
Development Programmatic EIS (BLM
2012, entire) excludes development of
utility-scale solar facilities outside the
Solar Energy Zones and variance areas
(variance areas are potentially available
for utility-scale solar energy
development, subject to additional
environmental review), protecting a
majority of the sage-grouse habitat in
these States. Exclusion is an effective
tool to reduce disturbance and minimize
impacts in the most important habitats
for conservation on federally managed
lands because the activity will not be
allowed in important habitats.
Rights-of-way: Under the Federal
Plans, PHMAs are either avoidance or
exclusion areas for both major and
minor rights of way with limited
exceptions, which must be based on an
explicit rationale that biological impacts
to sage-grouse are being avoided.
Existing designated corridors for major
transmission lines and pipelines will
remain open. Federal Plans designate
existing and potential ROW corridors to
minimize adverse environmental
impacts and the proliferation of separate
ROWs (43 CFR part 2806). Any new
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disturbance within these corridors
would count towards the disturbance
cap. All new, modified, or deleted
corridors will require a land use plan
amendment (including NEPA analysis
and notice and comment), thereby
limiting new or expanded corridors in
priority habitats for conservation in the
future.
Livestock Grazing: The Federal Plans
have not substantively changed
livestock land use allocations; however,
the BLM and USFS have committed to
implementation of vegetative standards
and habitat objectives specifically for
sage-grouse based on local ecological
conditions and prioritization of
monitoring in PHMAs to determine if
they are meeting sage-grouse habitat
objectives consistent with site-specific
guidelines or ecological site
descriptions. The Federal Plans call for
grazing to benefit or be neutral to sagegrouse, including in times of drought.
Specifically, the BLM and USFS have
committed to implementing the
following measures in the Federal Plans:
• The habitat assessment framework
(Stiver et al. 2010, entire) will be used to
monitor progress at achieving rangeland
health objectives at multiple spatial scales.
• The BLM and USFS will prioritize the
following first in SFAs followed by PHMAs
outside of the SFAs: (1) The review of grazing
permits/leases, in particular to determine if
modification is necessary prior to renewal,
and (2) the processing of grazing permits/
leases. In setting workload priorities,
precedence will be given to existing permits/
leases in these areas not meeting Land Health
Standards, with focus on those containing
riparian areas, including wet meadows. The
BLM may use other criteria for prioritization
to respond to urgent natural resource
concerns (e.g., fire) and legal obligations.
• The NEPA analysis for renewals and
modifications of livestock grazing permits/
leases that include lands within PHMAs will
include specific management thresholds
based on sage-grouse Habitat Objectives
Table and Land Health Standards (43 CFR
4180.2) and defined responses that will allow
the authorizing officer to make adjustments
to livestock grazing without conducting
additional NEPA analysis.
• Allotments within SFAs, followed by
those within PHMAs, and focusing on those
containing riparian areas, including wet
meadows, will be prioritized for field checks
to help ensure compliance with the terms
and conditions of the grazing permits. Field
checks could include monitoring for actual
use, utilization, and use supervision.
• At the time a permittee or lessee
voluntarily relinquishes a permit or lease, the
BLM and USFS will consider whether the
public lands where that permitted use was
authorized should remain available for
livestock grazing or be used for other
resource management objectives.
• Structural range improvements will be
managed to benefit or not adversely affect
sage-grouse by restricting locations of ranch
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facilities (e.g., fences, windmills, and corrals)
around leks, marking or removing fences, and
controlling invasive plants.
Prioritizing the onsite monitoring to
the most important areas for sage-grouse
consistent with the rangewide
monitoring plan, the certainty of
implementation is improved because
monitoring and management changes
will occur in the most important areas
for sage-grouse first. The vegetative
objectives in the Federal Plans were
developed using the best available
scientific information, taking into
consideration ecological differences
across the range of the species. The
Federal Plans specifically cite to the
literature relied upon to develop these
objectives. The Federal Plans commit to
implementation of any habitat
enhancement projects and other
activities to meet these objectives. The
monitoring framework is designed to
add consistency to this effort and will,
with adaptive management, provide
additional certainty that measures will
be implemented to meet habitat
objectives. These changes represent a
significant change from having virtually
no or only general land health standards
for sage-grouse to a system that
establishes specific standards for sagegrouse, prioritizes the most important
habitats, and targets monitoring to
ensure compliance. This framework
represents an effective suite of measures
that reduces the impacts from improper
grazing.
Sagebrush Focal Areas—Sagebrush
Focal Areas (SFAs) are the areas that the
Federal Plans manage as the highest
priority lands in PHMAs for sage-grouse
conservation (Figure 5). The BLM
requested input from us about
additional conservation opportunities,
and we provided a memo that identified
‘‘strongholds’’ for sage-grouse (USFWS
2014a, entire). These ‘‘strongholds’’
represented areas identified in the
scientific literature as essential for the
persistence of the species. Some of the
important characteristics of these areas
include large, contiguous blocks of
Federal lands; high population
connectivity; and high densities of
breeding birds (USFWS 2014a, entire).
Our recommendations directly informed
the BLM and USFS development of
SFAs, important conservation units
within which land managers will apply
the most conservative strategies to
protect sage-grouse and habitat.
Sagebrush Focal Areas encompass 4.5
million ha (11 million ac) of federally
administered lands in PHMAs (BLM
and USFS 2015, entire). All of the
measures listed above in PHMAs also
apply in SFAs; in addition, the
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following more restrictive measures also
apply in SFAs.
Locatable Minerals: The General
Mining Law of 1872, as amended,
opened the public lands of the U.S. to
mineral acquisition by the location and
maintenance of mining claims. Mineral
deposits subject to acquisition in this
manner are generally referred to as
locatable minerals. Locatable minerals
include metallic minerals (e.g., gold,
silver, lead, copper, zinc, and nickel),
nonmetallic minerals (e.g., fluorspar,
mica, gypsum, tantalum, heavy minerals
in placer form, and gemstones), and
certain uncommon variety minerals.
Under the Federal Plans, the BLM and
FS have recommended that lands in
SFAs be withdrawn from location and
entry under the Mining Law, subject to
valid existing rights. (BLM and USFS
2015). Under FLPMA, the first step of
the withdrawal process implementing
that recommendation is for the
Secretary (or Deputy or Assistant
Secretary) to ‘‘propose’’ a withdrawal.
43 U.S.C. 1714(b). Upon publication of
such a proposal in the Federal Register,
the lands are immediately segregated
from location and entry under the
Mining Law as specified in the notice
for a period of two years. That
segregation temporarily has essentially
the same effect as a withdrawal; that is,
it closes the lands to location and entry
under the Mining Law, subject to valid
existing rights. Although the Secretary
is free to make a final decision prior to
or after its expiration, the segregation is
intended to allow time for public input
and allow time for her to make a final
decision as to whether to withdraw the
lands. The Assistant Secretary took this
first step and proposed withdrawal of
the SFAs on September 16, 2015. The
BLM will publish notice of the proposal
concurrent with the announcement of
the BLM Records of Decision, which
will segregate the lands. After public
involvement and preparation of various
reports, including a NEPA analysis, the
Secretary will make a final decision as
to whether to withdraw the lands. 43
CFR 2310.3–2, 3. A withdrawal
aggregating more than 5,000 acres is
limited by law to a term of 20 years
(subject to renewals) and is subject to
Congressional notification. 43 U.S.C.
1714(c).
Fluid Minerals (Including Oil, Gas,
and Geothermal): The Federal Plans
manage SFAs as NSO, without waiver,
exception, or modification, for fluid
mineral leasing (with the exception of
plans in Wyoming, as discussed below).
No Surface Occupancy is where areas
are open to leasing but surfacedisturbing activities associated with
development of the lease cannot be
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conducted on the surface of the land.
Access to oil and gas deposits would
require horizontal/directional drilling
from outside the boundaries of the NSO
areas. This is the most restrictive
designation that allows for development
of resources and protects habitat.
Habitat Management: BLM and USFS
will prioritize management and
conservation actions in SFAs, including,
but not limited to, review of livestock
grazing permits/leases, free-roaming
equid gathers, fire management projects,
and sagebrush restoration projects.
Ensuring these areas are analyzed first
provides certainty that, if degraded
habitat conditions occur in the most
important areas for the species,
management actions will be taken and
possible restoration will occur.
The actions identified for
implementation in the SFAs are more
restrictive versions of the measures
described above for PHMAs. As such,
the measures implemented within SFAs
are more effective at reducing threats
within these important areas. These
measures have been determined to be
effective because they eliminate or
reduce the impacts from new
development or improper grazing on
Federal lands in SFAs.
General Habitat Management Areas—
The Federal Plans designate
approximately 12.5 million ha (31
million ac) as GHMA (Figure 5), which
corresponds with approximately 27
percent of breeding habitat rangewide.
The GHMAs represent habitats that
contain fewer leks and sage-grouse than
PHMAs. The designation as GHMAs
provide sage-grouse conservation by
protecting habitat and connectivity
between populations and potential
refugia in the event of catastrophic
events such as wildfire. While the
amelioration of threats in GHMAs will
likely be less than in PHMAs due to less
stringent required conservation
measures, GHMAs do have restrictions
that benefit sage-grouse conservation.
Specifically, the Federal Plans contain
the following measures that apply in
GHMAs:
Fluid minerals (Including Oil, Gas,
and Geothermal): General Habitat
Management Areas are open with
constraints. Areas with standard
constraints may be open to mineral
leasing with no specific management
decisions defined in the Federal Plans;
however, these areas are subject to lease
terms and conditions. Terms and
conditions may include but not be
limited to concentrating development,
moving or supporting infrastructure, or
reducing project footprints, thereby
reducing habitat impacts. Moderate
constraints include controlled surface
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use, which can reduce habitat impacts
and timing limitations which reduce
human activities during the times sagegrouse are most sensitive to their
presence.
Non-Energy Leasable Minerals:
General Habitat Management Areas are
open to non-energy leasable mineral
development, subject to stipulations. In
GHMA, development, including mineral
exploration, is subject to lek buffers to
protect breeding birds, timing
restrictions to reduce human activities
in important seasonal habitats while
sage-grouse are present, mitigation
requirements, and other protective
measures discussed throughout this
section, thereby reducing and
minimizing the impacts to the species
and its habitat.
Rights-of-Way: For major transmission
lines and pipelines, GHMAs are either
avoidance or exclusion areas, and may
be available for installation of pipeline
and transmission lines/ROWs within
existing infrastructure corridors.
Protective stipulations such as limiting
road use (to minimize disturbance to
birds) or eliminating perching areas (to
reduce predation) will be incorporated
into the ROW grants to protect sagegrouse and its habitat. For minor ROWs
(e.g., roads), GHMAs are open and
subject to stipulations that will protect
sage-grouse and its habitat, such as lek
buffers and seasonal restrictions (BLM
and USFS 2015, entire). For solar and
wind energy rights of way, GHMAs are
either designated avoidance or
exclusion areas with limited exceptions
and available for location of new utility
scale and/or commercial development
ROWs only with special stipulations
that minimize the impact to sage-grouse.
Mineral Materials: General Habitat
Management Areas can be open to new
mineral material sales and free use
permits subject to mitigation
requirements and application of RDFs
that will protect sage-grouse and its
habitat.
Livestock Grazing: Federal Plans call
for grazing to benefit or be neutral to
sage-grouse in GHMAs and PHMAs.
However, GHMAs will be the lower
priority for monitoring as they comprise
habitat with fewer leks and sage-grouse.
Measures Applicable in Both PHMA
and GHMA—In addition to specific land
use allocations described above, the
new Federal Plans include other
protective measures that will further
limit disturbance and impacts to sagegrouse and their habitats. Additionally
the plans include monitoring and
adaptive management to help ensure
that implementation of the allocative
decisions and limitations on
disturbance are effective at conserving
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sage-grouse and their habitats, and
mitigation provisions where disturbance
cannot be avoided. These measures
apply regardless of the habitat
designation (PHMA, SFA, or GHMA).
Land Tenure: The land tenure land
use allocation refers to whether the BLM
or USFS intend to dispose of, or retain,
Federal lands. A land use allocation of
retain means that the agencies will seek
to retain the land in Federal ownership,
with limited exceptions. An allocation
of dispose means that the agencies may
transfer the land out of Federal
ownership. Under the Federal Plans,
PHMAs and GHMAs will be retained in
Federal management, with limited
exceptions. Those limited exceptions
may occur when: (1) The agency can
demonstrate that disposal of lands will
provide a net conservation gain to the
sage-grouse; or (2) the agency can
demonstrate that the disposal of lands
will have no direct or indirect adverse
impact on conservation of sage-grouse.
The land tenure allocation ensures that
BLM and USFS lands within PHMAs
and GHMAs will be managed for sagegrouse into the future.
Trails and Travel Management: Travel
management regulations require BLM
and USFS to establish lands as open,
limited, or closed to off-road vehicle
use. In open areas all types of vehicle
use is permitted at all times, anywhere
in the area. Limited areas are restricted
at certain times, in certain areas, and/or
to certain vehicular use. Closed areas
are those that are closed to all types of
vehicle use and include units of the
National Wilderness Preservation
System. Areas that have not been
designated in one of these categories are
undesignated and have no restrictions
on motorized access.
In PHMA and GHMA, temporary
closures will be considered in
accordance with several regulations,
including Closures and Restrictions (43
CFR subpart 8364); Designated National
Area (43 CFR subpart 8351); Use of
Wilderness Areas, Prohibited Acts, and
Penalties (43 CFR subpart 6302); and
Conditions of Use (43 CFR subpart
8341). These regulations help control
access to sensitive areas and have been
employed strategically in the past to
minimize access and disturbance during
critical time periods such as spring
breeding. These measures ensure that
travel management decisions in PHMA
and GHMA are made with consideration
of sage-grouse conservation needs.
These measures help to address
concerns with potential disturbance due
to travel on Federal lands and will
continue to be used by the agencies as
needed.
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Disturbance Caps and Density
Limitations—Each Federal Plan
includes a disturbance cap that will
serve as an upper limit (the maximum
disturbance permitted). Anthropogenic
disturbance has been identified as a key
impact to sage-grouse. To limit new
anthropogenic disturbance within sagegrouse habitats, the Federal Plans
establish disturbance caps, above which
no new development is permitted
(subject to applicable laws and
regulations; e.g., General Mining Law of
1872, and valid existing rights). This
cap acts as a backstop to ensure that any
implementation decisions made under
the Federal Plans will not permit
substantial amounts of new disturbance
within the distribution of sage-grouse on
BLM and USFS lands.
For all States, except Wyoming and
Montana, the BLM and USFS have
established a 3 percent disturbance cap
at two spatial scales—the Biologically
Significant Unit (BSU) and at the project
scale within PHMAs (BLM and USFS
2015, entire). The BSU is a
geographical/spatial area, defined in
conjunction with the States, within
sage-grouse habitat that contains
habitats supporting several
interconnected populations. The
disturbance cap calculation includes all
anthropogenic disturbances in PHMAs
at the project scale regardless of land
ownership. If 3 percent disturbance is
reached at the project level scale, no
further anthropogenic disturbances will
be permitted by BLM or USFS within
PHMAs in the analysis area until the
disturbance has been reduced to less
than the cap. For BSUs the disturbance
calculations will include anthropogenic
disturbances in all habitat designations.
Those disturbance calculations will be
completed on an annual basis by the
BLM’s National Operation Center. If 3
percent disturbance is reached, the
Federal land management agencies will
examine all activities under their
authority to determine if adaptive
management is necessary (depending on
the spatial scale at which the 3 percent
cap is hit). In Montana, the same
disturbance cap approach is used, but
disturbance is limited to 5 percent, due
to more detailed mapping and
disturbance calculations. Wyoming uses
a different approach to limiting
disturbance in Core Areas, as discussed
in Wyoming State and Federal Plans,
below. As previously stated, sage-grouse
are sensitive to disturbance, and small
amounts of development within sagegrouse habitats can negatively affect
sage-grouse population viability (Knick
and Connelly 2011, p. 1). Thus, limiting
future disturbances in sage-grouse
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habitats is an essential component of
reducing or eliminating effects related to
disturbance, as recommended in the
COT Report (USFWS 2013, p. 13).
In addition to the percent disturbance
cap at the BSU and project scales, the
BLM and USFS will use a density cap
related to the density of energy and
mining facilities during project-scale
authorizations. If the disturbance
density is greater than an average of 1/
259 ha (1/640 ac) in PHMA, the project
will either be deferred or co-located in
an existing disturbed area (subject to
applicable laws and regulations, such as
the General Mining Law of 1872, valid
existing rights, etc.).
Lek Buffers—Sage-grouse leks are
communal breeding centers that are
representative of the breeding and
nesting habitats. Conservation of these
areas is crucial to maintaining sagegrouse populations. Protective buffers
around leks conserve these important
habitats (Manier et al. 2014, pp. 1–2).
To develop ‘‘biologically relevant and
socioeconomically practical’’ lek buffer
distances for use in the Federal Plans,
the DOI commissioned the USGS to
review the scientific information on
conservation buffer distances for sagegrouse. The result was the publication
of a USGS Open-File Report, entitled
Conservation Buffer Distance Estimates
for Greater Sage-Grouse—A Review, in
2014 (Manier et al. 2014, entire). In
addition to the land use allocations
described in this section, the BLM and
USFS will apply the lek buffer distances
specified as the lower end of the
interpreted range in PHMAs as
described in the report unless justifiable
departures are determined to be
appropriate (see below). The lower end
of the interpreted range of the lek buffer
distances are presented in Table 3. Note
that for many potential activities in
PHMAs, the Federal Plans land use
allocations result in no or few activities
allowed in these important areas (e.g.,
no surface occupancy restrictions).
Thus, for those types of projects, buffers
are unnecessary in PHMAs because the
activity is already restricted.
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TABLE 3—LEK BUFFER DISTANCES IN
FEDERAL PLANS
Disturbance
Linear Features (e.g.,
roads).
Infrastructure related to energy development.
Tall structures (communication or transmission
towers, transmission
lines).
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5 km (3.1 mi).
5 km (3.1 mi).
2 km (1.2 mi).
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TABLE 3—LEK BUFFER DISTANCES IN
FEDERAL PLANS—Continued
Disturbance
Lek buffer
Low structures (e.g.,
fences, rangeland structures).
Surface disturbance
(human activities that
alter or remove natural
vegetation).
Noise and related disruptive activities.
2 km (1.2 mi).
5 km (3.1 mi).
0.4 km (0.25
mi).
The BLM and USFS may approve
actions in PHMAs that are within the
applicable lek buffer distance identified
above only if the BLM or USFS
determine that a buffer distance other
than the distance identified above offers
the same or greater level of protection to
sage-grouse and its habitat. The BLM or
USFS will make this determination
based on best available science,
landscape features, and other existing
protections, with input from the local
State fish and wildlife agency. The BLM
or USFS will explain its justification for
determining that the approved buffer
distances meet these conditions in its
project decision.
For actions in GHMAs, the BLM and
USFS will apply the lek buffer distances
in Table 3 as required conservation
measures to fully address any impacts to
sage-grouse identified during the
project-specific NEPA analysis.
However, if it is not possible to locate
or relocate the project outside of the
applicable lek buffer distance(s)
identified above, the BLM or USFS may
approve the project only if: (1) Based on
best available science, landscape
features, and other existing protections,
(e.g., land use allocations, State
regulations), the BLM or USFS
determine that a lek buffer distance
other than the applicable distance
identified above offers the same or a
greater level of protection to sage-grouse
and its habitat, including conservation
of seasonal habitat outside of the
analyzed buffer area; or (2) the BLM or
USFS determines that impacts to sagegrouse and its habitat are minimized
such that the project will cause minor
or no new disturbance (e.g., co-location
with existing authorizations); and (3)
any residual impacts within the lek
buffer distances are addressed through
compensatory mitigation measures
sufficient to ensure a net conservation
gain, as outlined in the Mitigation
Strategy (see below). By applying lek
buffers in addition to other measures,
the Federal Plans provide an additional
layer of protection to the habitat in
closest proximity to leks and the areas
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documented in the literature to be the
most important for breeding and nest
success (Manier et al. 2014, entire).
Required Design Features—Required
Design Features (RDFs) are best
management practices to reduce
potential effects to sage-grouse for
certain project-level features. The RDFs
establish the minimum specifications
for certain activities to help mitigate
adverse impacts. Because of site-specific
circumstances, some RDFs may not
apply to some projects (e.g., a resource
is not present on a given site) and/or
may require slight variations (e.g., a
larger or smaller protective area). The
need to apply RDFs to a project or to
modify RDFs to address any concerns
unique to a project is determined during
the project-specific planning and
environmental assessment. All
variations in RDFs would require that at
least one of the following be
demonstrated in the NEPA analysis
associated with the project/activity:
• A specific RDF is documented to be
not applicable to the site-specific
conditions of the project/activity (e.g.,
due to site limitations or engineering
considerations). Economic
considerations, such as increased costs,
do not necessarily require that an RDF
be varied or rendered inapplicable;
• An alternative RDF is determined to
provide equal or better protection for
greater sage-grouse or its habitat;
• A specific RDF will provide no
additional protection to sage-grouse or
its habitat.
While the applicability and overall
effectiveness of each RDF cannot be
fully assessed until the project level
when the project location and design are
known, the Federal Plans include the
requirement to implement appropriate
RDFs and these RDFs are expected to
further minimize impact to the species
and its habitat. These RDFs were
developed based on the COT and NTT
conservation objectives and the best
professional judgment of BLM and
USFS wildlife biologists. For example,
any project that includes the
development of a pond or similar water
feature would require RDFs that direct
the design, construction, and
maintenance of the pond so that it
would not provide habitat for mosquitos
that could carry West Nile virus (WNv).
Monitoring—While monitoring does
not in and of itself reduce impacts, it is
an integral component of any
conservation program’s long-term
success. We take into consideration
monitoring when evaluating the overall
adequacy and effectiveness of a
conservation strategy. The regulations
for the BLM (43 CFR 1610.4–9) and the
USFS (36 CFR part 209, published July
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1, 2010) require that Federal Plans
establish intervals and standards, as
appropriate, for monitoring and
evaluations based on the sensitivity of
the resource to the decisions involved.
Pursuant to these regulations, an
interagency team developed The Greater
Sage-grouse Monitoring Framework that
describes the methods to be used to
collect monitoring data and to evaluate
implementation and effectiveness of the
sage-grouse planning strategy and the
conservation measures contained in the
Federal Plans (BLM and USFS 2014,
entire).
To ensure that the BLM and the USFS
are able to make consistent assessments
about sage-grouse habitats across the
range of the species, this framework lays
out the methodology—at multiple scales
(broad, mid, fine, and site scales)—for
monitoring of implementation and
disturbance and for evaluating the
effectiveness of the BLM and USFS
actions to conserve the species and its
habitat. Monitoring efforts will include
data for measurable quantitative
indicators of sagebrush availability,
anthropogenic disturbance levels, and
habitat conditions. Implementation
monitoring results will allow the BLM
and the USFS to evaluate the extent that
decisions from their Federal Plans to
conserve sage-grouse and their habitat
have been implemented. State fish and
wildlife agencies will continue to
collect population monitoring
information, which will be incorporated
into effectiveness monitoring as it is
made available.
Managing and monitoring sage-grouse
habitats are complicated by the
differences in habitat selection across
the range and habitat use by individual
birds within a given season. Therefore,
the monitoring framework evaluates
multiple habitat suitability indicators to
evaluate plan effectiveness. Descriptions
of these habitat suitability indicators for
each scale are provided in the ‘‘SageGrouse Habitat Assessment Framework:
Multiscale Habitat Assessment Tool’’
(Stiver et al. 2010, entire).
Results from monitoring data will
define when habitat objectives are not
being achieved, disturbance caps have
been breached, and adaptive
management triggers have been met (see
below). Having a consistent framework
for all management units will allow the
agencies to track information and trends
across management units, which has not
been possible in the past. The BLM and
USFS have and committed to increased
monitoring, and we expect the results to
give the agencies valuable data to assist
and improve implementation and
improve the overall effectiveness of the
BLM and USFS plans.
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Adaptive Management—Like
monitoring, adaptive management is a
key element of complex long-term
conservation strategies, particularly
where there is uncertainty. Adaptive
management is a decision process that
promotes flexible resource management
decision-making that can be adjusted in
the face of uncertainties as outcomes
from management actions and other
events become better understood. This
flexibility is critical for ensuring longterm conservation of sage-grouse into
the future, as it will allow the Federal
Plans to adjust to changed conditions or
new science that cannot be foreseen at
this time. Careful monitoring of these
outcomes both advances scientific
understanding and helps with adjusting
resource management directions as part
of an iterative learning process.
Adaptive management also recognizes
the importance of natural variability in
contributing to ecological resilience and
productivity. An effective adaptive
management program will ultimately
improve the overall effectiveness of the
conservation program through time.
Adaptive management will help
ensure that sage-grouse conservation
measures in the Federal Plans are
effective, and if they are not effective,
that corrective actions will be
implemented. Each planning area (with
the exception of the Lander and North
Dakota Plans) has identified adaptive
management soft and hard triggers and
responses. Soft triggers represent an
intermediate threshold indicating that
management changes are needed at the
project/implementation level to address
habitat and population losses. If a soft
trigger is met, the BLM will apply more
conservative or restrictive
implementation conservation measures
to mitigate for the specific causal factor
in the decline of populations and/or
habitats, with consideration of local
knowledge and conditions. These types
of adjustments will be made to preclude
meeting a hard trigger (which signals
more severe habitat loss or population
declines). Hard triggers represent a
threshold indicating that immediate
action is necessary to stop a deviation
from sage-grouse conservation
objectives as set forth in the Federal
Plans. Tripping a hard trigger will result
in BLM or USFS switching to a more
restrictive alternative from the Final
Environmental Impact Statement either
in whole or in part to address the causal
factors (e.g., immediate cessation of
authorizing land use authorizations
within the area). After the hard-trigger is
tripped, the BLM or USFS will
determine the causal factor and develop
and implement a corrective strategy.
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While adaptive management is not a
land use allocation decision, the Federal
Plans have developed species and
habitat triggers and tied them to
appropriate management actions in the
Federal Plans, providing an additional
certainty that action will be taken if the
species or habitat objectives are not
being met.
Mitigation—All of the Federal Plans
require that impacts to sage-grouse
habitats are mitigated and that
compensatory mitigation provides a net
conservation gain to the species. All
mitigation will be achieved by avoiding,
minimizing, and compensating for
impacts following the regulations from
the White House Council on
Environmental Quality (CEQ) (40 CFR
1508.20; e.g., avoid, minimize, and
compensate), hereafter referred to as the
mitigation hierarchy. If impacts from
BLM/USFS management actions and
authorized third party actions that result
in habitat loss and degradation remain
after applying avoidance and
minimization measures (i.e., residual
impacts), then compensatory mitigation
projects will be used to provide a net
conservation gain to the species. Any
compensatory mitigation will be
durable, timely, and in addition to that
which would have resulted without the
compensatory mitigation.
The Federal Plans will establish a
Management Zone Greater Sage-Grouse
Conservation Team (hereafter, Team) to
help guide the conservation of sagegrouse, within 90 days of the issuance
of the Record of Decision. This Team
will develop a Management Zone
Regional Mitigation Strategy using the
BLM’s Regional Mitigation Manual as a
framework. The Team will also compile
and report on monitoring data
(including data on habitat condition,
population trends, and mitigation
effectiveness) from States across the
MZs and will use these data to either
modify the appropriate Regional
Mitigation Strategy or recommend
adaptive management actions. Requiring
mitigation for residual impacts provides
additional certainty that, while impacts
will continue at reduced levels on
Federal lands, those impacts will be
offset to a net conservation gain
standard.
Fire and Invasives Assessment Tool
(FIAT)—The Federal Plans recognize
that fire and invasive plants are the
primary impact to sage-grouse habitat in
the Great Basin. The BLM and USFS
convened an interagency team to
develop a rangewide assessment and
step-down approach to address these
impacts (i.e., FIAT). The result was the
‘‘Greater Sage-Grouse Wildfire, Invasive
Annual Grasses and Conifer Expansion
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Assessment’’ report (BLM 2014, entire).
The FIAT assessments are incorporated
in the Federal Plans. The assessments
identify the habitats most resistant and
resilient to wildfire and invasive plants
to target fire management and ecosystem
restoration activities (BLM and USFS
2015, entire). The FIAT Assessments
ensure that wildfire and invasive plant
management and restoration resources
are deployed in the landscapes where
they will be most effective in reducing
this potential threat.
As part of the assessment process,
Instructional Memorandum (IM) 2014–
134 was released August 28, 2014. This
IM, in part, provided guidance for the
BLM field offices to cooperate with
interagency partners to complete FIAT
assessments at local scales for five
priority landscapes in sage-grouse
habitat, which roughly corresponded to
PACs in the Great Basin as identified in
the COT Report (USFWS 2013, p. 14)
(i.e., Central Oregon, Northern Great
Basin, Snake/Salmon/Beaverhead,
Southern Great Basin, Western Great
Basin/Warm Springs Valley). For each
priority landscape, regional findings
were stepped down to describe local
conditions by Project Planning Area
(PPA) and associated treatment needs
and management priorities. Each PPA
contained emphasis areas, i.e., portions
of a PAC with important habitat
characteristics and sage-grouse
populations that are impacted by
wildfire, invasives, and conifer
encroachment. The assessments were
included in the Federal Plans. The FIAT
Assessments are described in more
detail in the Wildfire and Invasive
Plants section, below.
Federal Plans Summary
The Federal Plans provide major new
regulatory mechanisms to protect sagegrouse from land use activities on more
than half of the occupied range. In 2010,
the Federal land management plans did
not contain, for the most part, sagegrouse specific measures, and areas
important to the species were open to
land uses that could disturb habitat (75
FR 13910, March 23, 2010, p. 13982).
Since then, the BLM and USFS have
amended or revised 98 plans to address
threats to the species (BLM and USFS
2015, entire). The Federal Plans exclude
or reduce habitat-disturbing activities in
PHMAs that contain the most important
habitats for conservation. General
Habitat Management Areas are still
being managed for the benefit of sagegrouse, but BLM and USFS have
flexibility to site development or leasing
in GHMAs to keep priority areas intact.
While some disturbance can occur in
the GHMAs, as they contain fewer sage-
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grouse when compared to PHMAs,
protective measures for activities in
those areas minimize impacts and
require mitigation. The combination of
restrictive PHMAs and less restrictive
GHMAs provide conservation for sagegrouse on approximately 27 million ha
(67 million ac) while still enabling the
multiple uses that are part of the BLM
and USFS missions. While there are
impacts associated with on-going
activities, the Federal Plans provide
adequate mechanisms to reduce and
minimize new disturbance in the most
important areas for the species. By
following COT Report and NTT
guidance and restricting impacts in the
most important habitat, the Federal
Plans ensure that high-quality sagegrouse lands with substantial
populations are minimally disturbed
and sage-grouse within this habitat
remain protected.
Wyoming State and Federal Plans
Approximately 37 percent of
estimated sage-grouse abundance occurs
in Wyoming (Doherty et al. 2010a, p.
21). The Wyoming Basin, the majority of
which occurs within the State of
Wyoming, has been identified as one of
two areas with the highest population
connectivity (Knick and Hanser 2011, p.
391). Therefore, conservation of this
area is essential to the persistence of
sage-grouse into the future. We have
also identified this area as a stronghold
for the species (USFWS 2014a).
The Wyoming Plan relies on the
protection of important sage-grouse
habitats in the State using a suite of
avoidance and minimization measures.
Important habitats (Core Areas) were
identified by the highest densities of
males attending leks, and added
associated habitats through a scientific
process engaging State wildlife experts
and local working groups. Core Areas
encompass approximately 83 percent of
the breeding population of sage-grouse
in Wyoming on approximately 24
percent of the total land surface of the
State (Budd, Wyoming Wildlife and
Natural Resource Trust, pers. comm.
2015). Additional connectivity areas
were identified for protection to ensure
population movements. Protective
measures associated with the Wyoming
Plan (described below) do not extend to
lands located outside the identified Core
Areas but that are still within occupied
sage-grouse habitat. In non-Core Areas,
the minimization measures are
implemented to maintain habitat
conditions such that there is a 50
percent likelihood that leks will persist
over time (Wyoming Game and Fish
Department 2009, pp. 30–35). While
impacts to sage-grouse are possible in
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non-core habitats, the majority of
primary habitats necessary for long-term
conservation of sage-grouse in Wyoming
are included in the identified Core
Areas. Core Area maps are reviewed and
adjusted every 5 years to allow for the
incorporation of new data that ensures
the most important areas for sage-grouse
receive protections. For example, the
State of Wyoming reviewed the Plan in
2015 and added 58,191 ha (143,794 ac)
to the Core Areas.
The key component of the Wyoming
Plan is the application of State
regulatory measures associated with the
Wyoming Plan on all lands in Wyoming
(6 million ha (15 million ac)) as any
project requiring a State permit must
meet the conditions of the strategy
regardless of land ownership.
Specifically, the Wyoming Plan applies
to all activities that require permits from
Wyoming’s Industrial Siting Council
(ISC) (Wyoming E.O. 2015–4, entire).
The Federal Plans in the State
incorporate the Wyoming strategy,
thereby ensuring implementation of the
strategy on Federal land surfaces and
subsurface regardless of the need for a
State permit (see further discussion
below). The completion of the Federal
plans also facilitates greater
coordination between the State and
Federal agencies in implementing and
monitoring the Wyoming Plan. This
addition to the Wyoming Plan further
increases the value of this effort in
conserving sage-grouse by covering all
lands in the State with a single
regulatory framework to reduce affects
to sage-grouse in the most important
habitats in the State. Therefore, the
strategy conserves sage-grouse through
an effective regulatory mechanism for
conservation.
The Wyoming Plan first encourages
projects to be re-located outside of Core
Areas by reducing restrictions in nonCore Areas for development activities.
Where projects cannot be relocated, the
Plan requires a combination of restricted
development densities, development
disturbance caps, seasonal restrictions,
and lek buffers to minimize habitat
disturbance within Core Areas. Surface
disturbance is limited to 5 percent
within Core Areas reducing
fragmentation and degradation of
habitat (Wyoming E.O. 2015–4,
Attachment A, p. 6; Wyoming E.O.
2015–4, Attachment B, p. 5). While 5
percent is greater than the 3 percent
used in other States, habitat disturbance
monitoring in Wyoming is conducted at
a much finer scale and is, therefore,
more inclusive in the number and
extent of disturbances measured.
Additionally, Wyoming includes natural
disturbances, such as wildfire, in the
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disturbance measure, which is not
included in any other State. Therefore,
the higher disturbance cap permitted in
Wyoming is not more permissive as a
simple comparison of the numbers
suggests. Limiting development to one
site per 259 ha (640 ac) on average
reduces the disturbance footprint to a
level where impacts to sage-grouse are
minimal, if nonexistent (Holloran 2005,
p. 58; Taylor et al. 2012a, p. 31;
Holloran et al. 2010, p. 71).
Development is not permitted if either
of these criteria (development density or
disturbance caps) is exceeded.
Incentives to consolidate disturbance
further reduce development impacts by
minimizing habitat loss and degradation
within large landscapes. Where
development cannot be moved away
from breeding habitats, an NSO buffer of
1 km (0.6 mi) of a lek is required, as
well as a seasonal restriction on project
development. Activity within 6.4 km (4
mi) of a lek is also restricted from March
15 through June 30. These restrictions
reduce impacts to the sage-grouse by
avoiding disturbance during breeding
season (Wyoming E.O. 2015–4,
Attachment B pp. 2–6; Fedy et al. 2012,
p. 1063; Doherty et al. 2010a, entire).
Disturbance (including all
anthropogenic and natural disturbances)
is tracked via a geospatial database
(measuring disturbance at 1 m (3.3 ft).
Including all disturbances with such
precision ensures that all potential
impacts to sage-grouse, regardless of
source, are being considered prior to
authorizing new development.
Additional conservation is gained
through the enforcement of noise
restrictions at the perimeter of leks,
which minimizes disturbance to birds
visiting the leks (Wyoming E.O. 2015–
4, Attachment B, p. 8; Patricelli et al.
2013, p. 241; Blickley and Patricelli
2012, p. 33; Blickley et al. 2012, p. 470).
Outside of core-habitat, there are NSO
restrictions within 0.4 km (0.25 mi) of
leks to minimize impacts to sage-grouse
(E.O. 2015–4, Attachment B, p. 6), and
activities within 3.2 km (2 mi) of a lek
are restricted during the breeding
season. These relaxed stipulations
encourage development to move outside
of Core Areas, while still providing
some protections to birds in non-Core
Areas. While impacts to birds and their
habitats may occur outside of Core
Areas, only about 17 percent of the sagegrouse bird density occurs in those areas
(Budd, Wyoming Wildlife and Natural
Resources Trust, pers. comm. 2015),
minimizing impacts to sage-grouse and
allowing for the continuation of the
economies that support the State.
In 2010, we analyzed the Wyoming
Plan and noted that it included
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measures that if fully implemented
could ameliorate threats to sage-grouse
(75 FR 13910, March 23, 2010, pp.
13974–13975). We now have data that
shows how implementation has avoided
and minimized impacts in core habitats.
Since 2012, the majority of the 600
projects proposed in Core Areas and
reviewed by the State complied with the
criteria of the Wyoming Plan. Projects
that added additional surface
disturbance within Core Areas were
minimized or co-located with existing
disturbance. Less than 8 ha (20 ac) of
new disturbance has occurred within
Core Areas since 2012 (USFWS 2014b).
Other applications were denied that
would negatively affect sage-grouse,
including a wind lease application on
State trust lands (USFWS 2014b). The
number of oil and gas wells permitted
in Core Areas has also declined as
industry seeks to avoid conflict with
sage-grouse. Between 2006 and 2012,
vertically drilled single well permits
declined 65 percent, while directionally
and horizontally drilled wells, from
outside the Core Areas, increased by 66
and 1,337 percent, respectively (USFWS
2014b). This change in the number and
nature of oil and gas well permits
further demonstrates the efficacy of the
Wyoming Plan. Other industries, such
as mining, have initiated restoration
efforts to remove existing disturbance
and improve habitat for sage-grouse.
These data demonstrate the efficacy of
the Wyoming Plan in removing and
reducing impacts to sage-grouse from
development activities.
The Federal Plans in Wyoming have
incorporated the Wyoming Plan Core
Area strategy. Core habitats designated
by the State have been identified as
PHMA on BLM and USFS lands, while
non-core habitats are designated as
GHMA. Both the BLM and USFS have
adopted the more precise disturbance
measurements developed by the State at
5 percent. With the exception of the
fluid and non-energy leasable mineral
programs, the Federal Plans in
Wyoming are the same as with other
States. However, these modifications
were made to expand the protections
already implemented by the State to
Federally managed lands.
The fluid mineral designation in the
Federal Plans in Wyoming is different
than in the other Federal Plans
throughout the range, which was
necessary to adopt the Wyoming Plan.
For fluid minerals in Wyoming, PHMAs
are designated Controlled Surface Use,
which means these areas are open to
leasing, but would require proposals for
surface-disturbing activities only be
authorized in accordance with the
controls or constraints specified in the
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Wyoming Plan. For non-energy leasable
minerals, PHMAs are open to nonenergy leasable minerals, but are subject
to measures intended to minimize
impact in important (core) areas
pursuant to the Wyoming Plan.
A recent analysis of the Wyoming
Plan predicted that 83 percent of the
landscape within core area boundaries
supports increasing or stable
populations of sage-grouse (Burkhalter
et al. 2015, p. 20) due to the
conservation of high-quality intact
sagebrush habitats. Seventeen percent of
the landscape within Core Areas may
have declining populations as those
areas occur around the edges of Core
Areas and, therefore, are subject to
disturbances outside these protected
areas (Burkhalter et al. 2015, p. 20). The
factors identified in this report as
essential for conservation, such as
maintaining connected landscapes in
sagebrush cover, and minimizing oil
and gas development, are all key
components of the Wyoming Plan. The
recent completion of the BLM and USFS
Federal Plans should reduce
disturbance around the edge of Core
Areas, thereby increasing the efficacy of
the strategy. The Wyoming Plan was
renewed in July 2015 ensuring that the
protections will continue until at least
2022 (Wyoming E.O. 2015–4, p. 6).
The Wyoming Plan has been in place
for 8 years, and has demonstrated its
conservation value by protecting areas
identified as important to sage-grouse
conservation. As described above,
development has been removed or
minimized in Core Areas, protecting
intact habitats from fragmentation and
degradation. Carefully controlled
development within Core Areas has had
minimal to no impact to the sage-grouse
as demonstrated by the increasing
populations within Core Areas
(Burkhalter et al. 2015, p. 20).
Protections outside the Core Areas also
provide additional conservation to
habitats and birds by maintaining
connectivity between Core Areas. The
adoption of the Wyoming Plan into
Federal land plans provides additional
assurances that protections of Core
Areas will be achieved on all lands,
regardless of land ownership.
Montana and Oregon Conservation
Efforts
State and Private lands account for 42
percent of the sage-grouse occupied
range. Plans developed by States for
sage-grouse vary widely in the nature of
the protective measures, with some
measures being regulatory and some
being voluntary. State Plans in three
States—Wyoming, Montana, and
Oregon—contain regulatory measures
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that effectively address threats on State
or private lands. Wyoming is addressed
separately above because of its
integration with the Federal Plans in
that State (See Wyoming section above).
Since 2010, all States within the range
of the species, except for California,
have drafted, finalized, or implemented
conservation plans for the sage-grouse.
These plans take different approaches,
but, in general, they identify important
conservation objectives for sage-grouse,
and provide mechanisms to incentivize
conservation. While 10 of the 11 States
in the range of the sage-grouse updated
plans to conserve the species by
incorporating new information, which is
a testimony to their concern and
commitment to protect the grouse and
its habitats, not all of these plans have
been fully implemented or regulatory in
scope. As discussed above, we will
assess the conservation actions
mandated by the State plans in
Wyoming, Montana, and Oregon
because they provide the greatest degree
of regulatory certainty in addressing
potential threats on State and private
lands not under the jurisdiction of
Federal Plans. We appreciate the work
that each State has completed, but we
could not include all planning efforts in
other States in our analysis because they
did not meet a level of certainty for
implementation and effectiveness.
Regardless of the nature of State
conservation efforts, we reviewed and
considered the conservation efforts
developed and implemented by the
States consistent with the Act (16 U.S.C.
1533(b)(1)(A)). A description of the
other applicable State laws is included
below in Regulatory Mechanisms and
Other Conservation Plans.
Montana—The Montana Sage-Grouse
Habitat Conservation Program (Montana
Plan) is similar to the Wyoming Plan in
that it is a regulatory mechanism that
applies to Core Areas across the State.
In 2014, the Governor signed an
Executive Order that provides sagegrouse conservation directives for
activities on State and private lands
where approximately 70 percent of sagegrouse habitat in Montana occurs
(Montana E.O. 10–2014, entire). The
Governor of Montana issued a second
Executive Order putting into effect the
Montana Sage Grouse Habitat
Conservation Program and giving it full
regulatory authority (Montana E.O. 12–
2015, entire). This second Executive
Order included a full review of State
regulatory authority over activities in
sage-grouse habitat in Montana. The
Montana Plan is regulatory on State
lands and on any private lands where
State permits or authorizations are
required; it requires that State agencies
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adhere to the requirements and
stipulations of the Program. The
Montana Executive Order created the
Montana Sage-Grouse Oversight Team
(Montana Oversight Team) composed of
State Agency Directors to oversee
administration of the Montana Plan.
Additional staffing of the Montana Plan
includes a Program Manager, GIS
Manager and technician, biologists, and
support for seasonal work. The Montana
Plan and supporting documents clearly
identify under what regulatory authority
the State and private entities are
required to act in accordance with the
Executive Order.
In the previous section, we describe
in detail how the Wyoming Plan
addresses the issues of habitat loss and
fragmentation and disturbance to sagegrouse. The Montana Plan closely
follows the structure of the Wyoming
Plan and, similarly, uses information
and guidance from the COT Report to
identify and reduce impacts associated
with threats to sage-grouse in Montana.
The Montana Executive Order also
identifies scientifically valid
performance standards based upon
number of males at leks to ensure that
the Montana Plan actions are effective;
monitoring protocols are also included.
The Montana Plan specifies adaptive
management strategies in response to
this monitoring information.
Implementation of the Montana Plan
will occur immediately in response to
future and additional actions that occur
in sage-grouse habitat; full
implementation of the Montana Plan is
expected by January 2016.
The Montana Plan includes similar
requirements as those identified in the
Wyoming Plan including the following:
Use of a 5 percent disturbance cap in
Core Areas; allowance of only one
disturbance (well pad, grouped impacts)
per section (259 ha (640 ac)) for oil and
gas and mining; prohibition of
sagebrush eradication or conversion;
and lek buffers and disturbance buffers
in both Core Areas and general habitats.
For a complete discussion of why these
methods are effective in supporting
viable sage-grouse populations, please
see the previous discussion of the
Wyoming State and Federal Plan, above.
The Montana State Legislature
recently passed, and the Governor
signed, the Montana Sage-Grouse
Protection Act during the 2015
legislative session. This Act ensures that
critical funding and support are
available for necessary sage-grouse
conservation efforts in the future. This
Act funds staff resources to implement
the conservation program, and includes
a revolving conservation fund with an
initial balance of 10 million dollars.
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This funding authorization is directly
tied to the implementation of the E.O.
and provides certainty of
implementation. The Governor also
signed the Montana Greater Sage-Grouse
Stewardship Act, which establishes the
Montana Sage-Grouse Oversight Team
and provides grant-based funding for
voluntary sage-grouse conservation
efforts. Unless specifically excluded, all
State actions (including those
prescribed for sage-grouse conservation)
require review under the Montana
Environmental Policy Act, which is
analogous to the National
Environmental Policy Act at the State
level. Given this commitment from the
State, there is certainty that the Montana
Plan will be implemented and effective.
In addition to the Montana Plan,
private landowners in Montana have
worked with Montana Fish, Wildlife,
and Parks to enroll nearly 80,000 ha
(200,000 ac) in 30-year sagebrush leases.
Montana Fish, Wildlife, and Parks
provided 1.2 million dollars for these
leases where landowners agreed not to
eliminate sagebrush on the enrolled
acres (Wightman, Montana Fish,
Wildlife, and Parks, 2015, pers. comm.).
Oregon—The Oregon Sage-Grouse
Action Plan (Oregon Plan) ensures
regulatory protection and enhancement
of sage-grouse and their habitat on State
and private lands in Oregon. This Plan
is backed by two new rules in the
Oregon Legislature and an Executive
Order. The Oregon Plan includes
explicit habitat and population goals
with incremental completion dates and
prioritizes avoidance with standards for
mitigation of impacts if necessary. The
Oregon Plan builds on the core area
strategies utilized by Wyoming and
Montana to address all sage-grouse
habitats. The Oregon Plan applies to
more than 6 million ha (approximately
15 million ac) of all landownership
types and includes regulatory
mechanisms, such as disturbance caps
and adaptive management triggers, to
reduce impacts to sage-grouse in the
State.
The Oregon Plan includes similar
provisions to those identified in the
Wyoming Plan and Montana Plan.
Based upon the nature and extent of
threats to sage-grouse in Oregon and
information in the 2010 Finding and
COT Report, the Oregon Plan includes
limitations on disturbance in Core Areas
through disturbance caps and an
avoidance and minimization strategy.
Actions permitted through county
actions (such as a new subdivision or
county road) as well as actions
permitted through State agencies (such
as a new large-scale energy or utility
project) are both subject to the Plan as
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outlined in the two Rules (Oregon OAR
635–140–0025, entire; and Oregon OAR
660–023–0115, entire; OR E.O. 2015).
For specific discussions of why these
stipulations are effective, please see the
Wyoming State and Federal Plan
discussion. The Oregon Plan identifies
fire management measures, such as
funding and logistical support for Rural
Fire Protection Areas. Wildfire and the
fire/invasives cycle can impact large
areas of sage-grouse habitat in very short
periods of time, making prevention of
wildfire important for minimizing
effects. This commitment improves the
likelihood that wildfires will be
effectively controlled to reduce the
potential negative effects to sage-grouse
habitat. Further, the Oregon Plan
includes a State-administered
compensatory mitigation program
designed to synchronize with BLM
mitigation processes. The Oregon Plan
has identified an overall population goal
of 30,000 birds with interim
performance measures and
corresponding monitoring protocol to
ensure progress towards the larger goal.
The Oregon Plan commits to adaptively
manage for sage-grouse in response to
this monitoring data.
Many of the Oregon Plan measures are
similar or complementary to those
included in the Federal Plans. This
aligned framework of tools, rules, and
protocols across local, State, and
Federal processes will ensure that
coordinated mitigation and voluntary
actions conserve the species across all
land ownerships in Oregon. It also
creates the transparency and credibility
necessary for public support of the
State’s strategy.
The Oregon Plan identifies several
State agencies as well as specific staffing
and funding requirements necessary for
full implementation of the Oregon Plan.
In addition to gaining public support
and identifying necessary staffing,
financial support has been secured
through the Oregon Watershed
Enhancement Board, which has
committed 10 million dollars over the
next 10 years. These funds are used to
implement aspects of the Oregon Plan
that manage impacts from fire and
invasive species. In addition, 3.34
million dollars of new funding for sagegrouse conservation was appropriated
by the Oregon Legislature for the 2015
through 2017 funding cycle. These
commitments ensure that the Oregon
Plan will be successfully implemented
for the conservation of the species.
Sage Grouse Initiative
The Sage Grouse Initiative (SGI)
works with landowners and other
partners to design and deliver voluntary
conservation practices, including
grazing systems and conservation
easements, on private lands to
ameliorate impacts to sage-grouse while
improving the sustainability of working
ranches. Private lands account for 39
percent of sage-grouse occupied range.
Habitat under private ownership may be
at greater risk of conversion through
development than neighboring Federal
land. The Sage Grouse Initiative’s past,
present, and future contributions are
considerable because, while private
lands are less than half of the sagegrouse occupied range, the potential
biological value of those lands for
various phases of the species’ life
history is high, as is their potential
conservation value. The NRCS carries
out conservation through a variety of
authorities and tools. We have
identified specific activities that are
directly benefiting sage-grouse under
SGI (Table 4).
TABLE 4—CONSERVATION COMPLETED BY SGI FOR 2010 TO 2014
[From NRCS 2015a, p. 38]
Grazing systems
Easements
Conifer removal
Seeding
Fence modification
MZ
ha
ac
ha
ac
ha
ac
ha
ac
km
mi
554,529
216,285
15,199
127,448
35,736
33,619
3,667
1,370,269
534,450
37,557
314,930
88,306
83,073
9,061
26,661
95,186
4,529
39,727
11,684
1,768
3,316
65,881
235,210
11,191
98,167
28,871
4,369
8,193
73
1,437
7,630
83,405
71,061
0
389
181
3,551
18,855
206,099
175,595
0
962
3,074
1,023
2,240
12,035
439
274
388
7,597
2,527
5,534
29,740
1,085
677
960
182
37
16
153
129
47
2
113
23
10
95
80
29
1
Total ..................
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I ................................
II ...............................
III ..............................
IV ..............................
V ...............................
VI ..............................
VII .............................
986,482
2,437,646
182,870
451,882
163,996
405,243
19,474
48,120
565
351
Grazing Management—The objective
of SGI’s Prescribed Grazing protocol is
to ensure that rangelands are managed
sustainably and support functional
sagebrush ecosystems (NRCS 2015a, p.
23). Since 2010, SGI has improved
rangeland health through rotational
grazing systems, re-vegetating with
sagebrush and perennial grasses, and
controlling invasive species (NRCS
2015a, p. 23). The techniques employed
by SGI to improve and/or maintain
habitat suitability for sage-grouse are
consistent with the recommendations
provided in the COT Report (USFWS
2013, pp. 45–46).
Easements—The SGI has enrolled
182,109 ha (450,000 ac) in conservation
easements; 80 percent of these occur
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inside occupied sage-grouse habitat, and
94 percent provide permanent
protection (NRCS 2015a, p. 1). Under
these easements, habitat cannot be
subdivided or converted to agriculture,
thus protecting sage-grouse habitat from
development. By maintaining these
lands in sagebrush habitat, these
easements support existing sage-grouse
populations and decrease likelihood of
fragmentation.
Restoration—The SGI ameliorates
impacts through restoration of disturbed
and degraded habitat. The SGI has
reclaimed 163,995 ha (405,241 ac) of
otherwise suitable habitat by direct
removal of conifers encroaching on
sagebrush habitat. Removal of earlystage conifers should improve and
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expand sage-grouse habitats by
precluding ecological type conversion to
an otherwise unsuitable habitat
(Johnson and Miller 2006, p. 8; Casazza
et al. 2011, p. 163; Knick et al. 2013, p.
1544). Through monitoring data, SGI is
working to assess how birds use areas
with recent conifer removal. Anecdotal
reports suggest that sage-grouse have
responded positively to these efforts.
Moreover, SGI and others are
developing conifer maps in MZs III, VI,
V, and VII (NRCS 2015a, p. 19). The SGI
will use this new information to target
efforts where removal will have the
greatest value for sage-grouse (NRCS
2015a, p. 19 and NRCS 2015b, p. 10).
Fence modification is another aspect
of SGI restoration. Marking and
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removing fences can reduce direct
mortality to sage-grouse by reducing
fence strikes. NRCS estimates that SGI
fence marking prevents 2,600 collisions
annually (NRCS 2015a, p. 22).
The SGI uses direct seeding to restore
habitat through the addition of native
species. Through grazing systems, revegetating former rangeland with
sagebrush and perennial grasses and
controlling invasive weeds, SGI has
enhanced rangeland health inside PACs
(NRCS 2015a, p. 2).
Monitoring and Adaptive
Management—The NRCS has continued
to improve conservation of sagebrush
habitat through new information and
new scientific methods (NRCS 2015a,
entire; NRCS 2015b, entire). They
employ habitat suitability models to
target conservation easements and
address conifer encroachment in the
early stages of development to improve
the benefit of their treatments. By
monitoring and tracking the
effectiveness of their efforts and their
willingness to incorporate this
information into their management, SGI
has ensured the long-term
implementation of their program will
achieve conservation for sage-grouse on
private lands.
Since 2010, the NRCS, through the
SGI, has invested approximately 425.5
million dollars, with 76 percent of
investments occurring within PACs
(Table 4). To date, 1,129 ranches have
participated in the SGI, across all 11
States in the species’ range (NRCS
2015a, p. 1). Through the 2014 Farm
Bill, NRCS will continue and accelerate
its efforts, ensuring a durable and
increasingly targeted conservation effort
on private lands in sage-grouse country
(NRCS 2015a, p. 29; NRCS 2015b, p. 6).
Starting in 2015, NRCS will add 198
million dollars to continue sage-grouse
conservation on private lands in the
future (NRCS 2015a, p. 29; NRCS 2015b,
p. 6).
Where they have been implemented,
these conservation efforts have
addressed certain potential threats to
sage-grouse, such as urban and exurban
development, infrastructure, and
improper grazing (defined for the
purposes of this analysis as grazing at an
intensity or in ways that impair
ecosystem functions of the sagebrush
ecosystem) [See Grazing and Rangeland
Management, below]. The nature of
those potential threats and the impact of
SGI’s conservation in ameliorating some
potential threats are discussed in further
detail below (see Summary of
Information Pertaining to the Five
Factors). Given the history of success of
this program, the level of local and
national support, NRCS’ application of
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adaptive management, demonstrated
partnerships, and the recent
reauthorization and dedicated resources
through the 2014 Farm Bill, we expect
that SGI will continue to provide
valuable on-the-ground conservation to
sage-grouse and its habitat into the
future.
Candidate Conservation Agreements
Over the past 2 years, we have
prioritized Candidate Conservation
Agreements with Assurances (CCAAs)
to focus conservation on non-Federal
lands for the benefit of sage-grouse.
Candidate Conservation Agreements
with Assurances provide assurances to
both landowners and the Service that
conservation will continue into the
future without resulting in a regulatory
burden on the landowners involved.
Through these agreements, landowners
agree to avoid certain activities that may
be harmful to sage-grouse, or to
undertake activities on their property
that benefit sage-grouse (e.g., restore
degraded habitat, create new habitat,
augment existing populations, and
restore historical populations). In
Oregon, more than 575,000 ha (1.4
million ac) of rangeland have been
effectively conserved for sage-grouse
through enrollment in a CCAA. In
Wyoming, 36 CCAAs have been
completed, with more than 180,000 ha
(445,000 ac) enrolled. In addition to
CCAAs, we also employ Candidate
Conservation Agreements; these
agreements can exist between the
Service and private landowners, local
governments, States, and Federal
agencies.
Candidate Conservation Agreements
operate through tailored conservation
strategies that specify required activities
that will benefit sage-grouse. Although
individual agreements vary, the focus is
always on improving sage-grouse habitat
or populations. Through CCAAs,
landowners may restore existing
degraded sagebrush to provide habitat
for sage-grouse. They may also create
new habitat or simply, as with
conservation easements, protect existing
habitat for the benefit of the species. As
an example, landowners enrolled in the
Oregon CCAA have agreed to maintain
contiguous habitat by avoiding further
fragmentation. The objective for this
required conservation measure is for no
net loss in: (1) Habitat quantity (as
measured in acres) and (2) habitat
quality (as determined by the ecological
state). Additionally, every enrolled
landowner must have at least one
conservation measure in place to
address each threat identified during the
baseline assessment of individual
properties.
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Candidate Conservation Agreements
are voluntary agreements. As such, it is
possible for landowners to terminate
these agreements. However, based on
previous experiences with existing
CCAAs for a variety of other species
(Anderson and Moore, USFWS, 2015,
pers. comm.), we have found that
landowners generally do not withdraw
from these agreements. Of the 34 CCAAs
the Service has finalized nationwide for
a variety of species, 32 are still in effect
and 2 expired based on the term of the
agreement, indicating that landowners
continue to implement CCAAs
following finalization of the agreements
(Anderson and Moore, USFWS, 2015,
pers. comm.). Landowners commit to
beneficial actions that they are willing
to implement to receive the assurances
of no further regulatory requirements if
the species would become listed. In
addition to CCAAs, we work with
private landowners through the Partners
for Fish and Wildlife Program through
Private Landowner Agreements to
benefit species and their habitats. A past
study on the retention of restored
wetlands found that the vast majority of
landowners continued to implement the
practices from their agreements well
after the agreement ended (Fairchild
2004, entire). Further, over the last
decade, in an 8-State area roughly
equivalent to the Rocky Mountain sagegrouse range, the majority of
landowners completed their agreements
and continued practices after the
agreements were completed (Johnson,
USFWS, 2015, pers. comm.). Habitat
loss and degradation were identified as
threats to the species in 2010; through
efforts such as these, sage-grouse habitat
remains available to the species. Given
the ongoing fidelity these efforts to
conserve sage-grouse and its habitat,
along with our previous experiences
with other species, we conclude that
there is sufficient certainty that existing
CCAAs will continue to be implemented
into the future.
Secretarial Order 3336
On January 5, 2015, the Secretary of
the Interior signed Secretarial Order
3336, Rangeland Fire Prevention,
Management, and Restoration
(Secretarial Order), that provides
guidance on wildfire management in the
sagebrush ecosystem (Department of the
Interior (DOI) 2015b, entire). The
Secretarial Order places a priority on
‘‘protecting, conserving, and restoring
the health of the sagebrush ecosystem
and, in particular, sage-grouse habitat,
while maintaining safe and efficient
operations,’’ and allocates fire resources
and assets associated with wildfire to
reflect that priority. The Secretarial
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Order established a Rangeland Fire Task
Force (Task Force) to prepare and
oversee an Implementation Plan for
accomplishing the objectives of the
Secretarial Order. The Task Force
completed an ‘‘Initial Report’’ outlining
actions that can be undertaken during
the 2015 western wildfire season and
that plan is being implemented (DOI
2015c, entire). The Task Force also
prepared a ‘‘Final Report’’ that identifies
long-term activities, beyond the 2015
fire season, that can be implemented to
further address the effects of wildfire in
the Great Basin (DOI 2015d, entire). A
full discussion of the Secretarial Order,
the Initial and Final Reports, and how
they address the effects from wildfire
and invasive species is provided below
(see Wildfire and Invasive Plants).
Summary of New Information Since
2010
Since 2010, there have been several
major changes in the regulatory
mechanisms that minimize impacts to
sage-grouse and their habitats. Foremost
among these are the adoption of new
Federal Plans specifically tailored to
conserving sage-grouse over more than
half of its occupied range. These Federal
Plans now include substantial
provisions for addressing activities that
occur in sage-grouse habitats and affect
the species, including those threats
identified in 2010 as having inadequate
regulatory measures. Aside from
addressing specific activities, the
Federal Plans include provisions for
monitoring, adaptive management,
mitigation, and limitations on
anthropogenic disturbance to reduce
impacts authorized in sage-grouse
habitats. The Federal Plans are the
foundation of land-use management on
BLM and USFS managed lands. We are
confident that these Federal Plans will
be implemented and that the new
changes, which are based on the
scientific literature, will effectively
reduce and minimize impacts to the
species and its habitat.
In addition to the Federal Plans, the
BLM and USFS have provided new
policy guidance and management
direction for the management of wildfire
and invasive plant in the sagebrush
ecosystems. The Secretarial Order
establishes new, overarching policy
direction for DOI and its wildfire
prevention and suppression efforts by
prioritizing ‘‘protecting, conserving, and
restoring the health of the sagebrush
ecosystem and, in particular, sagegrouse habitat, while maintaining safe
and efficient operations.’’ The
Secretarial Order also requires that DOI
allocate its wildfire resources and assets
in ways that fulfill the priority of
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protecting, conserving, and restoring the
health of the sagebrush ecosystem. The
Secretarial Order aims to reduce the
size, severity, and cost of suppressing
wildfire in sage-grouse habitats by
reducing the spread of invasive plants
and prioritizing resources to ensure that
suppression efforts are effective.
Further, 10 of the 11 States within the
occupied range of the sage-grouse have
revised and adopted sage-grouse
conservation plans. State sage-grouse
conservation plans in Wyoming,
Montana, and Oregon contain regulatory
mechanisms that minimize impacts to
the species and its habitat. Most
notably, the Wyoming Plan has been in
place since 2008 and has effectively
minimized impacts within core habitats,
protecting the highest density areas for
the species within the State. The
Montana and Oregon State Plans use
proven conservation measures including
disturbance caps, density restrictions,
and lek buffers to minimize disturbance
to important habitats. In combination,
the Federal and three State plans cover
90 percent of the sage-grouse breeding
habitat where they provide regulatory
mechanisms that reduce potential
adverse effects to sage-grouse. These
State and Federal Plans, together with
the private lands conservation provided
by SGI and CCAAs, represent a
substantial increase in sage-grouse
conservation since 2010. These Plans
and private land efforts provide
conservation for sage-grouse now and
into the future and ensure that the most
important habitats will remain
distributed across the landscape to
support the populations identified as
critical to the long-term conservation of
the species.
Summary of Information Pertaining to
the Five Factors
Section 4 of the Act (16 U.S.C. 1533)
and implementing regulations (50 CFR
424) set forth procedures for adding
species to the Federal Lists of
Endangered and Threatened Wildlife
and Plants. The Act defines an
‘‘endangered’’ species as ‘‘any species
which is in danger of extinction
throughout all or a significant portion of
its range,’’ and a ‘‘threatened’’ species as
one ‘‘which is likely to become an
endangered species within the
foreseeable future throughout all or a
significant portion of its range’’ (16
U.S.C. 1532(6), (20)). Under section
4(a)(1) of the Act, we may determine a
species warrants listing as endangered
or threatened based on any of the
following five factors:
(A) The present or threatened destruction,
modification, or curtailment of its habitat or
range;
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(B) Overutilization for commercial,
recreational, scientific, or educational
purposes;
(C) Disease or predation;
(D) The inadequacy of existing regulatory
mechanisms; or
(E) Other natural or manmade factors
affecting its continued existence.
In making this finding, we discuss
below information regarding the status
and potential threats to the sage-grouse
in relation to the five statutory factors
provided in section 4(a)(1) of the Act.
Our evaluation of potential threats is
based on information provided in the
relevant petitions, information available
in our files, and other sources
considered to be the best scientific and
commercial information available,
including published and unpublished
studies and reports. In considering what
factors might constitute threats to the
species, we must look beyond the mere
exposure of the species to the factor to
determine whether the species responds
to the factor in a way that causes actual
impacts to the species. If there is
exposure to a factor, but no response, or
only a positive response, that factor is
not a threat. If there is exposure and the
species responds negatively, the factor
may be a threat to the species and we
then attempt to determine if that factor
rises to the level of a threat, meaning
that it may drive or contribute to the
risk of extinction of the species such
that the species warrants listing as an
endangered or threatened species as
those terms are defined by the Act. This
does not necessarily require empirical
proof of a threat. The combination of
exposure and some corroborating
evidence of how the species is likely
impacted could suffice. The mere
identification of factors that could
impact a species negatively is not
sufficient to compel a finding that
listing is warranted; we require
evidence that the threats, either alone or
when combined, are significant, in that
they act on the species to the point that
the species meets the definition of an
‘‘endangered species’’ or ‘‘threatened
species’’ under the Act.
Habitat Fragmentation
In the 2010 finding, we determined
that the greatest threat to the species
was habitat loss and fragmentation
(Factor A) due to a variety of causes,
including but not limited to, energy
development, infrastructure, invasive
species, and wildfire (75 FR 13910,
March 23, 2010, p. 13986). Sagebrush
habitats were becoming increasingly
degraded and fragmented due to the
impacts of multiple threats, including
direct conversion, urbanization,
infrastructure such as roads and power
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lines built in support of several
activities, wildfire and the change in
wildfire frequency, incursion of
invasive plants, improper grazing, and
nonrenewable and renewable energy
development. Many of these threats
were found to be exacerbated by the
effects of climate change, which could
influence long-term habitat trends.
As noted in 2010, fundamental
characteristics of sagebrush landscapes
have changed since Euro-American
settlement (Knick and Connelly 2011, p.
7). Very little of the extant sagebrush is
undisturbed, with up to 50 to 60 percent
having altered understories or having
been lost to direct conversion (Knick et
al. 2003, p. 612). Conversion to
cropland and other land uses has
reduced the quantity of area that is
dominated by sagebrush land cover. The
composition of sagebrush communities
has changed with the expansion of
junipers and Pinus spp. (pinyon)
woodlands (Miller and Rose 1999, p.
556) and the invasion of nonnative
species such cheatgrass (West and
Young 2000, p. 262). Habitat suitability
has also been affected by the presence
of anthropogenic structures such as
communication towers and power lines
(Connelly et al. 2000a, p. 974; Beck et
al. 2006, p. 1070). Lastly, the
configuration of sagebrush mosaics
across the species’ range has changed,
resulting in the risk of increased
population isolation, exposure to
predators in areas of edge habitat, and
invasive plants (Saunders et al. 1991,
pp. 22–24; Gelbard and Belnap 2003, p.
424; Knick and Connelly 2011, pp. 7–
14).
The biology of sagebrush and the
ecology of the sagebrush ecosystem
makes restoration of disturbed areas
very difficult and processes to restore
sagebrush habitat are relatively
unproven (Knick et al. 2003, p. 620).
Active restoration activities are often
limited by financial and logistical
resources (Knick et al. 2003, p. 620;
Miller et al. 2011, p. 147; Pyke 2011, p.
544) and may require decades or
centuries to be effective (Knick et al.
2003, p. 620). Meaningful restoration for
sage-grouse requires action on a
landscape, watershed, or eco-regional
scale rather than individual,
unconnected efforts (Knick et al. 2003,
p. 623; Wisdom et al. 2011, p. 469).
Recently, investigations have focused on
ascertaining where and how sagebrush
habitat restoration is likely to be more
effective (Pyke 2011, pp. 531–548;
Miller et al. 2014, pp. 468–481;
Chambers et al. 2014b, pp. 440–454).
Because loss and fragmentation of
habitats due to invasives and wildfire is
one of the biggest impacts to sage-
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grouse, particularly in the Great Basin,
it is important that these investigations
continue and that management actions
continue to focus on effective wildfire
suppression and habitat restoration.
Because of the challenges with
sagebrush restoration, management
efforts in sagebrush ecosystems are
usually focused on habitat maintenance
(Miller et al. 2011, p. 183; Wisdom et al.
2011, pp. 470, 472). This goal has
primarily been achieved through the
management of activities that can result
in habitat loss and fragmentations such
as non-renewable energy development,
agricultural conversion, wildfire, and
invasive plants, consistent with the
recommendations in the COT Report
(USFWS 2013, pp. 40–52). Each of the
activities that can cause habitat
fragmentation will be discussed further
below, as well as any conservation
efforts that have been implemented to
address those impacts.
Nonrenewable Energy Development
In 2010, we evaluated the effect of
nonrenewable energy development on
sage-grouse and concluded that the
development and related infrastructure
were substantial contributors to habitat
loss and fragmentation in the past, and
that it would continue into the future,
particularly in the Rocky Mountain
portion of the species’ range. We also
found that regulations addressing
nonrenewable energy development were
inadequate at that time to address this
threat. It was the lack of regulatory
mechanisms that led us to conclude this
nonrenewable energy development
would continue at rates similar to or
greater than historical rates of
development. The 2010 finding
concluded that habitat fragmentation,
caused in part by nonrenewable energy
development, and inadequate regulatory
mechanisms were significant threats to
the species, then and into the
foreseeable future, such that listing was
warranted under the Act (75 FR 13910,
March 23, 2010, pp. 13986–13988).
Nonrenewable energy development
includes the exploration, construction,
and drilling of wells and installation of
supporting infrastructure needed to
extract and transport oil, natural gas,
coal, coal-bed natural gas, coal-bed
methane, and other types of gas.
Nonrenewable energy development
begins with exploratory surveys and the
construction of access roads and well
pads, followed by drilling, extracting,
and transporting the energy reserves
along roads and pipelines. Additional
infrastructure needed for nonrenewable
energy development often includes
compressor stations, pumping stations,
electrical generators, and power lines
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(Connelly et al. 2004, p. 7–39; BLM
2007, pp. 2–110).
Nonrenewable energy development
has occurred in sage-grouse habitats
since the late 1800s (Connelly et al.
2004, p. 7–28), with wells historically
concentrated in MZs I, II, VII, and the
eastern portion of MZ III (IHS
Incorporated 2014, entire). Specifically,
nonrenewable energy development is
concentrated above four geologic basins
across the sage-grouse range: The
Powder River Basin (MZ I); the
Williston Basin (MZ I); the
Southwestern Wyoming Basin (MZ II);
and the Uinta-Piceance Basin (MZs II,
III, and VII). These four basins overlap
with the highest density of sage-grouse,
and the largest number of leks in the
Rocky Mountain portion of the occupied
range (Doherty et al. 2015, entire).
Approximately 10 percent of the
species’ overall occupied range has been
directly or indirectly affected by
nonrenewable energy development,
with approximately 20 percent affected
in MZ I, 20 percent affected in MZ II,
and 29 percent affected in MZ VII
(Knick et al. 2011, p. 240). The existing
development and infrastructure has
already affected the species distribution
(Naugle et al. 2011, pp. 489–491).
Nonrenewable energy development is
expected to continue in the occupied
range of the sage-grouse based on the
estimates of available energy reserves
and projected trends in development
rates (Copeland et al. 2009, p. 5; Knick
and Hanser 2011, p. 394; Wisdom et al.
2011, p. 467).
Nonrenewable energy development
can remove and fragment sagebrush
habitats (Factor A). Well pads vary in
size from 0.10 ha (0.25 ac) for coal-bed
natural gas wells to greater than 7 ha
(17.3 ac) for deep gas wells and multiwell pads (Connelly et al. 2004, p. 7–39;
BLM 2007, pp. 2–123). Pads for
compressor stations typically occupy 5
to 7 ha (12.4 to 17.3 ac) (Connelly et al.
2004, p. 7–39). However, where geology
permits the use of new horizontal and
directional drilling technologies,
multiple wells can be placed on one
pad, thereby reducing the amount of
surface disturbance associated with
wells, roads, power lines, and pipelines
(Applegate and Owens 2014, p. 288).
The reduction and fragmentation of
sagebrush habitats can decrease sagegrouse abundance and reduce the
distribution of sage-grouse across the
landscape (Knick et al., 2011, pp. 247–
250; Leu and Hanser 2011, p. 270). Male
sage-grouse may avoid leks if there are
five or more wells within 3.0 km (1.9
mi), and sage-grouse are less likely to
occupy habitats with wells spaced at 32
ha (80 ac) (Doherty et al. 2008, p. 193).
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Well densities on Federal lands have
typically ranged from 1 well per 16 ha
to 32 ha (40 ac to 80 ac), although
densities as high as 1 well per 4 ha (10
ac) do occur (BLM 2006, pp. 2–5;
Naugle et al. 2011, p. 497). Impacts from
nonrenewable energy extend beyond the
physical footprints of wells and may
include indirect effects such as the
physical and behavioral changes,
increased mortality, and reduced
reproductive success (Lyon and
Anderson 2003, p. 459; Walker et al.
2007a, p. 2651; Holloran et al. 2010, p.
70; Knick et al. 2011, p. 240).
Sage-grouse avoid habitats near nonrenewable energy developments,
including important wintering habitats
and leks (Dzialak et al. 2013, p. 16;
Smith et al. 2014, p. 15). Sage-grouse
have lower nest initiation and nest
success rates near nonrenewable energy
development (Aldridge and Boyce 2007,
p. 517; Webb et al. 2012, p. 9), and
reduced survival rates (Holloran et al.
2010, p. 70; Kirol 2012, p. 15). Due to
the strong habitat fidelity exhibited by
adult sage-grouse, declining population
trends may take up to 10 years to detect
following the onset of nonrenewable
energy development. (Doherty et al.
2010a, p. 5; Harju et al. 2010, pp. 441–
445; Taylor et al. 2012a, p. 8; Gregory
and Beck 2014, p. e97132). This delay
poses challenges to detecting
population-level impacts resulting from
development, and may prevent timely
implementation of measures to
eliminate, reduce, or mitigate those
impacts. As a single conservation tool,
mitigation measures (such as habitat
restoration and seasonal or timing
restrictions) to reduce impacts may not
be sufficient to prevent sage-grouse
declines due to nonrenewable energy
development (Walker et al. 2007a, p.
2651; Doherty et al. 2008, p. 192; Harju
et al. 2010, p. 445), as the associated
infrastructure persists on the landscape
for several generations of sage-grouse.
However, as part of a larger tool set that
includes avoidance and minimization,
mitigation can serve as a helpful
conservation measure (USFWS 2014c).
Nonrenewable energy resources are
the largest source of energy worldwide,
and demand for these resources could
increase by up to 1.3 percent annually
in the United States and 50 percent
worldwide by the year 2030 (National
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Petroleum Council 2007, p. 46; Naugle
et al. 2011, p. 490). Nonrenewable
energy resources will likely be in
demand and used in the United States
through the year 2030, although energy
forms and extraction techniques may
change in the future (EIA 2009, entire).
Market conditions and extraction
technologies influence the rates of
nonrenewable energy development in
North America (Applegate and Owens
2014, p. 287); the Energy Policy and
Conservation Act (Pub. L. 109–58) and
its amendments mandate that the
United States increase its domestic
energy development. Therefore,
nonrenewable energy development is
likely to continue throughout the sagegrouse range into the future, although its
form and extent across the landscape
may change.
In 2010, we assessed impacts to sagegrouse and their habitat based on the
portion of occupied range where a
nonrenewable energy project was
occurring and where there was
increased potential for future
development (75 FR March 1310, March
23, 2010, pp. 13942–13948). This
approach was based on the best
available GIS data at that time but may
have overestimated some effects,
because we had less precise information
regarding areas of high oil and gas
development potential and we
measured impacts against all lands
within the occupied range.
For this status review, we used peerreviewed and published methodologies
(Copeland et al. 2009, entire) to model
the probability of future oil and gas
development impacting sage-grouse.
The model focused on assessing the risk
of nonrenewable energy in MZs I and II,
the two areas with the highest potential
for future nonrenewable energy
development (Figure 2) (Juliusson and
Doherty 2015). Although nonrenewable
energy development potential exists and
will continue in the Uinta-Piceance
Basin (MZ VII), we did not apply the
model to MZ VII because the relative
proportion of potential development
was low, even under the highest
development scenario. The model used
geological information about potentially
available oil and gas resources to map
areas of likely future development
(Juliusson and Doherty 2015). We also
used Oil & Gas Resource Assessments
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59889
developed by the USGS to incorporate
future maximum potential development
scenarios into the analysis (Juliusson
and Doherty 2015). The analysis
quantified potential effects to sagegrouse by calculating the percent of the
Population Index and breeding habitat
distribution potentially exposed to
future nonrenewable energy
development based on the availability of
oil and gas resources. The potential
effects from nonrenewable energy
development were assessed with and
without regulatory mechanisms
contained in the Federal Plans, the
Wyoming Plan, and the Montana Plan
(see Conservation Efforts, below). The
estimate of potential non-renewable
energy effects without conservation
planning efforts is roughly equivalent to
what was evaluated in 2010.
Our analysis indicates that the
Federal Plans, the Wyoming Plan, and
the Montana Plan are reducing the
exposure of the sage-grouse to
nonrenewable energy, as measured by
the portions of the Population Index and
breeding habitat, in MZs I and II, the
two MZs at greatest risk of future
nonrenewable energy development
(Table 5). Without the regulatory
mechanisms in MZ I, 28 percent of the
Population Index and 21 percent of the
breeding habitat could be affected by
nonrenewable energy development.
Without regulatory mechanisms in MZ
II, 27 percent of the Population Index
and 25 percent of the breeding habitat
could be affected (Table 5). However,
with the regulatory mechanisms
provided by the State and Federal plans,
the risk of nonrenewable energy
development decreases. With regulatory
mechanisms, 17 percent of the
Population Index and 14 percent of the
breeding habitat could be exposed to
nonrenewable energy development in
MZ I, and 8 percent of the Population
Index and 9 percent of the breeding
habitat could be exposed to
nonrenewable energy development in
MZ II. Our analysis shows that the State
and Federal regulatory mechanisms
reduce the risk of nonrenewable energy
exposure to the Population Index and
breeding habitat by more than 35
percent in MZ I and more than 60
percent in MZ II.
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TABLE 5—POTENTIAL EXPOSURE TO SAGE-GROUSE POPULATIONS AND BREEDING HABITAT FROM NONRENEWABLE ENERGY DEVELOPMENT IN MZS I AND II, WITH AND WITHOUT THE REGULATORY MECHANISMS, AT THE HIGHEST DEVELOPMENT SCENARIO
Without regulatory mechanisms
Management zone
% of the population
index exposed
I ........................................................................................
II .......................................................................................
To summarize, our analysis quantifies
that without regulation a high
proportion of the Population Index and
breeding habitat in MZs I and II could
be exposed to and potentially negatively
affected by nonrenewable energy
development. However, with the
regulatory mechanisms enacted since
2010, the potential risk from
nonrenewable energy development is
substantially reduced in MZs I and II
(Table 5). Future impacts to sage-grouse
from new development could vary
based on other factors, such as
economic markets, technologies,
densities, proximity to existing
development, and the location of new
development; however, our results show
that the Federal and State regulatory
mechanisms in MZs I and II reduce
habitat loss and fragmentation due to
nonrenewable energy development. The
next section will discuss these
conservation efforts, including those
regulatory mechanisms designed to
address the effects of nonrenewable
energy development and how they
ameliorate this potential threat.
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Conservation Efforts
Since 2010, State and Federal
agencies have worked collaboratively to
develop regulatory mechanisms, that is,
legally binding and enforceable sagegrouse conservation measures, as well
as other nonregulatory conservation
efforts, to reduce or eliminate the
potential threat of new nonrenewable
energy development to sage-grouse and
its habitat. Those efforts are discussed
in detail below.
State Plans—Three States where
nonrenewable energy development has
historically been concentrated have
implemented regulatory mechanisms to
address this potential threat. As
described below, Wyoming and
Montana Plans provide regulatory
mechanisms to address habitat loss,
habitat fragmentation, and disturbance
associated with nonrenewable-energy
development on applicable lands in
their States. In addition, the Utah
Executive Order contains a regulatory
mechanism for potential nonrenewable
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% of the breeding
habitat exposed
28
27
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% of the population
index exposed
21
25
energy development that is discussed
below.
The Wyoming Plan provides
regulatory mechanisms to reduce
impacts associated with energy
development on all lands within Core
Areas. The Wyoming Plan features
development stipulations to guide and
regulate development within the Core
Population Areas to avoid as much as
possible, but, if avoidance is not
possible, to minimize and mitigate,
impacts to sage-grouse and its habitat
(See Regulatory Mechanisms section
below; Wyoming E.O. 2015–4, entire).
Specific measures include controlled
surface use, density of development
restrictions, seasonal and noise
restrictions, and lek buffers. Since
implementation of the plan began in
2008, the number of new nonrenewable
energy wells in sage-grouse habitats
declined by 80 percent and permits for
potential new development of single
wells has declined by 65 percent
(USFWS 2014b). At the same time,
applications for directional and
horizontal drilling permits, which
congregate disturbance from multiple
wells into one area, increased by 66 and
65 percent respectively, representing a
decrease in sage-grouse habitat lost to
nonrenewable energy development
(USFWS 2014b). The BLM analyzed
existing lease information and found
that only 14 percent of PHMA in
Wyoming is already leased (Carmen,
BLM, 2015, pers. com.). The Wyoming
Plan recognizes valid existing rights.
‘‘Activities existing or permitted in Core
Populations Areas prior to August 1,
2008, will not be required to be
managed under Core Population Area
Stipulations’’ (Wyoming E.O. 2015–4, p.
4). Our risk analysis described above
confirms that the Wyoming Plan,
together with the Federal Plans, reduces
the potential exposure of nonrenewable
energy development to the Population
Index by more than 35 percent in MZ I
and 60 percent in MZ II (Table 5) where
nonrenewable energy development has
historically been concentrated. Results
were similar for breeding habitat. Risk
of exposure, however, is a measure of
areas where regulatory mechanisms
PO 00000
With regulatory mechanisms
17
8
% of the breeding
habitat exposed
14
9
would allow development and does not
equate to a forecast of where actual
impacts will occur; actual energy
development and potential impacts are
likely to be much lower than the risk
analysis. While some development will
occur in the future, the Wyoming Plan
directs projects to areas that will avoid
impacts, includes stipulations to
minimize indirect effects, and if
necessary, requires mitigation to benefit
the species.
The Montana Plan also provides
regulatory mechanisms very similar to
those described above for Wyoming that
reduce impacts from nonrenewableenergy development. Montana’s State
plan includes controlled surface use,
restrictions on density of development,
seasonal and noise restrictions, and lek
buffers. Similar to the Wyoming Plan, it
is designed to reduce impacts associated
with energy development in Core Areas
on State lands and private lands where
a State authorization is required
(Montana E.O. 10–2014, entire; see
Conservation Efforts section above). The
Montana Plan includes a controlled
surface use, density of development
restrictions, seasonal and noise
restrictions, and lek buffers.
The Utah Executive Order requires
that the Utah Division of Oil Gas and
Mining coordinate with the Utah
Division of Wildlife Resources prior to
issuing energy development permits.
Further, the Plan directs the Utah
Division of Oil, Gas, and Mining to
implement recommendations provided
during that coordination that require
avoidance and minimization measures
on State and private lands consistent
with the conservation plan. These
measures are subject to the statutory
requirements to protect rights on private
property and avoid waste of the mineral
resource.
To summarize, since the 2010 finding,
States have undertaken considerable
effort to reduce the impact of
nonrenewable energy development on
sage-grouse and efforts are consistent
with the recommendations in the COT
Report (USFWS 2013, pp. 43–44). State
Plans in Wyoming and Montana provide
regulatory mechanisms that direct
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development out of Core Areas and
minimize indirect effects, effectively
reducing the risk of habitat loss and
fragmentation in MZs I and II. In
addition, the Utah Executive Order
contains a regulatory mechanism that
requires consultation with the State
Division of Wildlife Resources and
implementation of its recommendations
to avoid and minimize sage-grouse
impacts. The State Plans work together
with the Federal Plans, as discussed
below, to reduce nonrenewable energy
effects to sage-grouse habitat across the
range, and particularly in MZs I and II,
where the potential for development is
the greatest.
Federal Plans—Since 2010, BLM and
USFS have completed plan amendments
or revisions conserving sage-grouse on
more than half its occupied range.
Approximately 80 percent of the BLM
and USFS lands with high to medium
potential for nonrenewable energy
development are located outside
federally managed PHMAs (Quamen,
BLM, 2015, pers. comm.). The Federal
Plans in Wyoming adopt the Wyoming
Plan, which, as described in the
Regulatory Mechanisms section above,
reduces impacts to sage-grouse from
nonrenewable energy development. The
Federal Plans include NSO restrictions
in 14 million ha (35 million ac) of
PHMA, with either no or very limited
waivers or modifications. Exceptions to
this restriction could occur only if it is
determined that the project would not
affect sage-grouse or would be beneficial
compared to other options. The Federal
Plans prioritize the future leasing and
development of nonrenewable-energy
resources outside of sage-grouse
habitats. The plans require disturbance
caps, surface occupancy restrictions,
seasonal restrictions, and lek buffers to
effectively reduce habitat loss, habitat
fragmentation, and disturbance to sagegrouse from nonrenewable energy
development. Calculation of the
percentage of disturbed surface under
the disturbance caps incorporates both
existing and new authorized
disturbances to limit habitat loss and
fragmentation from new nonrenewable
energy development (See Sagebrush
Landscape Conservation Planning
above).
The Federal Plans recognize valid
existing subsurface rights to
nonrenewable energy resources, but still
reduce impacts to sage-grouse by
requiring the agencies to work with
lessees, operators, and project
proponents to follow an avoidance,
minimization, and mitigation approach
subject to applicable laws (30 U.S.C.
226(p) and 43 CFR 3162.3). The BLM
estimates that approximately 10 percent
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of all habitat is currently leased
rangewide (Carmen, BLM, 2015, pers.
comm.). According to BLM’s analysis,
varying proportions of PHMA are leased
across the range of the species: 20
percent in North Dakota; 17 percent in
Colorado; 14 percent in Wyoming; 4
percent in Utah; and 2 percent in
Montana (Carmen, BLM, 2015, pers.
comm.). The Federal Plans provide
coordinated monitoring strategies of
disturbance caps. In response to
monitoring, development allowed under
the Federal Plans may be adjusted based
on adaptive management criteria to
provide an immediate, corrective
response to any identified triggers for
population or habitat declines. While
the development of some valid existing
rights may continue, these provisions
provide a backstop for other disturbance
if adaptive management triggers are
exceeded.
In summary, the Federal and three
State Plans include closure or NSO
restrictions for all PHMAs (except in
Wyoming), and limit exceptions to
instances where the activity will have
no direct, indirect, or cumulative effect
on sage-grouse or sage-grouse habitats,
or is an alternative action for activities
on a nearby parcel and would provide
a clear conservation gain to sage-grouse.
In GHMAs, Federal Plans dictate that
project proponents avoid, minimize,
and mitigate impacts from
nonrenewable energy development (see
Sagebrush Landscape Conservation
Planning above). The Federal Plans are
also consistent with the
recommendations in the COT Report
(USFWS 2013, pp. 43–44). Together,
these measures reduce effects from
nonrenewable energy development on
approximately 90 percent of the
breeding habitat across the range.
Nonrenewable Energy Summary
In the 2010 Finding, we determined
that nonrenewable development was a
threat to sage-grouse due to the habitat
loss and fragmentation it caused.
Current information indicates that the
global demand for nonrenewable energy
resources will continue and will likely
increase in sage-grouse habitats through
the year 2030. Nonrenewable energy
development can negatively affect sagegrouse individuals and populations by
reducing and fragmenting sagebrush
habitats and by disturbing individual
sage-grouse through increased noise and
behavioral avoidance of infrastructure
and human activity. Nonrenewable
energy development could also act
cumulatively with other potential
threats to increase habitat loss and
fragmentation caused by invasive
plants, and may increase predation or
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59891
disease. Our analysis indicates that
regulatory mechanisms reduce the risk
of nonrenewable energy exposure to the
Population Index and breeding habitat
by more than 35 percent in MZ I and
more than 60 percent in MZ II, the areas
with the greatest potential for
nonrenewable energy development.
State and Federal Plans emphasize
protection of the most important
habitats from habitat loss, habitat
fragmentation, and disturbance,
ensuring that large, contiguous expanses
of habitat will remain to support sagegrouse populations. Rangewide, the
Federal Plans, Wyoming Plan, and
Montana Plan reduce impacts from
nonrenewable energy development on
approximately 90 percent of the
modeled breeding habitat (see
Sagebrush Landscape Conservation
Planning for a detailed discussion of
conservation measure implementation
and effectiveness).
Infrastructure
In 2010, we evaluated the effect of
infrastructure (including roads,
railroads, power lines, communication
towers, and fences) on sage-grouse and
concluded that it was a substantial
contributor to habitat fragmentation
throughout the species’ range and that
fragmentation from this source would
increase in the future. We also found
that infrastructure causes direct
mortality from collisions and provides
perches for predators. We further found
that the regulations governing the
location and installation of
infrastructure were inadequate to
address these threats. The 2010 finding
concluded that habitat fragmentation,
caused in part by infrastructure, and
inadequate regulatory mechanisms to
address the negative effects of
infrastructure were significant threats to
the species and likely to continue or
increase into the future such that listing
was warranted under the Act (75 FR
13910, March 23, 2010, pp. 13986–
13988).
The increasing expansion of human
settlement into the western United
States has led to an increase in demand
for natural resources and the necessary
infrastructure to support human
development. Development of roads,
railroads, power lines, communication
towers, and fences can result in habitat
loss and fragmentation, and can cause
sage-grouse habitat avoidance. These
types of infrastructure can also provide
sources for the introduction and
propagation of invasive plants, increase
fire risk, and increase concentrations of
predators.
The physical footprint of existing
infrastructure has directly impacted
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approximately 218,535 ha (540,013 ac)
of breeding habitat rangewide (Factor A)
(Table 6). In addition, infrastructure can
influence a larger ecological footprint by
negatively affecting sage-grouse use of
otherwise suitable habitats through
indirect effects from noise disturbance,
increased perches for predators, and
pathways for invasive species (Manier et
al. 2013, p. 31; Blickley and Patricelli
2012, p. 26). For infrastructure that has
been in place for a number of years,
these impacts have likely already been
realized. The greatest impact from
existing infrastructure has occurred in
the Columbia Basin (MZ VI) where
approximately 2.9 percent of sagegrouse breeding habitat has been
affected. Current infrastructure
associated with power lines accounts for
the greatest direct disturbance (117,004
ha; 289,125 ac) across the range. Fences
occur across the landscape; however,
the amount of fencing is unknown (75
FR 13910, March 23, 2010, p. 13929).
TABLE 6—SAGE-GROUSE BREEDING HABITAT DIRECTLY IMPACTED BY EXISTING INFRASTRUCTURE
Management zone
I
Roads 1 ...................
Railroads .................
Power lines 2 ...........
Vertical Towers 3 .....
Rangewide Totals ...
1 Includes
2 Includes
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3 Includes
ha ................
ac ................
% .................
ha ................
ac ................
% .................
ha ................
ac ................
% .................
ha ................
ac ................
% .................
ha ................
ac ................
% .................
II
18,344
45,329
(0.4%)
131
324
(<0.1%)
17,171
42,431
(0.41%)
429
1,061
(<0.1%)
36,075
89,144
(0.9%)
28,798
71,162
(0.6%)
278
686
(<0.1%)
37,656
93,049
(0.78%)
756
1,867
(<0.1%)
67,487
166,764
(1.4%)
III
IV
17,604
43,501
(0.5%)
115
284
(<0.1%)
18,455
45,603
(0.54%)
404
998
(<0.1%)
36,578
90,386
(1.1%)
21,210
52,411
(0.4%)
149
369
(<0.1%)
28,104
69,447
(0.60%)
442
1,091
(<0.1%)
49,905
123,318
(1.1%)
V
7,289
18,011
(0.5%)
..................
..................
(<0.1%)
7,670
18,952
(0.55%)
26
64
(<0.1%)
14,984
37,026
(1.1%)
VI
4,871
12,036
(1.1%)
8
20
(<0.1%)
7,950
19,644
(1.78%)
68
168
(<0.1%)
12,897
31,868
(2.9%)
VII
601
1,485
(0.9%)
..................
..................
(<0.1%)
..................
..................
(<0.1%)
8
21
(<0.1%)
610
1,507
(0.9%)
Total
98,717
243,935
(0.5%)
681
1,683
(<0.1%)
117,005
289,125
(0.6%)
2,133
5,270
(<0.1%)
218,536
540,013
(1.2%)
interstates, State and Federal highways, and secondary roads.
existing, large (>115 kV) transmission lines. Does not include distribution lines.
meteorological towers, communication towers, and wind turbines.
The primary impact of infrastructure
is habitat loss and fragmentation (Factor
A). Other impacts associated with
infrastructure are direct mortality from
strikes (Beck et al. 2006, p. 1075),
spread of invasives (Connelly et al.
2004, p. 7–25), wildfire ignition
(Havlina et al. 2015, p. 2), and increased
predator occurrence (Manier et al.2013,
p. 31; Howe et al. 2014, p. 43).
Additionally, sage-grouse may avoid
infrastructure because of noise or visual
disturbance (Blickley and Patricelli
2012, p. 26). However, fences may be
beneficial if used to protect areas used
by sage-grouse (USFWS 2013, p. 52),
such as fencing livestock and freeroaming equids out of mesic areas used
as late brood-rearing habitat. The best
available information does not forecast
where or how much additional
infrastructure could be installed across
the species’ range. However, as
discussed in the next section, regulatory
mechanisms provided by the Federal
and State Plans will exclude or
minimize new infrastructure in
approximately 90 percent of sage-grouse
breeding habitats.
Conservation Efforts
Since 2010, a number of landscapescale efforts have been undertaken to
reduce impacts from existing and future
infrastructure to sage-grouse across the
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range that are consistent with the
recommendations in the COT Report
(USFWS 2013, pp. 51–52). Those efforts
include Federal Plan amendments, State
Plans, SGI projects, and CCAs.
Federal Plans—The Federal Plans
limit new infrastructure primarily
through land use allocations, lek
buffers, and disturbance caps (BLM and
USFS 2015, entire). In PHMA, these
measures are designed to avoid or
minimize infrastructure development,
with limited exceptions for new ROWs.
Any exceptions must include the
explicit rationale that biological impacts
to sage-grouse are being avoided.
Existing designated corridors for future
major transmission lines and pipelines
remain open. Any impacts from new
infrastructure require mitigation and are
counted toward the 3 percent
disturbance cap, except in Wyoming
and Montana where a 5 percent cap
exists. The Federal Plans also include
seasonal timing restrictions, noise
restrictions, buffer distances from leks,
and required design features to
minimize infrastructure impacts on
sage-grouse. Further, in response to
monitoring, development allowable
under the Federal Plans may be adjusted
based on adaptive management criteria
to provide an immediate, corrective
response to any triggers for population
or habitat declines. These provisions
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provide a backstop to prevent additional
disturbance. As a result of these
measures, approximately 14 million ha
(35 million ac) of PHMA are protected
from ROWs. Based on past planning
processes, we expect the measures to be
implemented for at least the next 20 to
30 years. For additional details about
the implementation and effectiveness of
Federal Plans, see Federal Plans section,
above.
State Plans—State Plans in Wyoming,
Montana, and Oregon contain regulatory
measures to minimize impacts from
infrastructure on State lands and, in
some instances, on private lands. The
Wyoming Plan imposes the following
restrictions on all lands in Wyoming:
Structure-density limits, timing
stipulations, buffers, habitat-disturbance
caps, and project-specific reviews for
any project subject to State permitting
requirements permitted after August 1,
2008, on all lands in Wyoming
(Wyoming E.O. 2015–4, entire).
Oregon’s Plan regulations require
avoidance, minimization, and
compensatory mitigation actions for
development actions in sage-grouse
habitat on State and private land and, in
conjunction with BLM’s Federal Plan,
cap the amount of disturbance on sagegrouse core habitat to 3 percent (Oregon
OAR 635–140–0025, entire; and Oregon
OAR 660–023–0115, entire), while the
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Wyoming and Montana Plans cap the
amount of disturbance on sage-grouse
core habitat to 5 percent (Wyoming E.O.
2015–4, p. 6; Montana E.O. 10–2014, p.
14). For additional details about the
implementation and effectiveness of
State plans, see the Wyoming State and
Federal Plans and Montana and Oregon
Conservation Efforts sections, above.
Sage Grouse Initiative—Marking
fences with permanent flagging
improves their visibility and reduces
fence collisions and was recommended
by the COT Report (USFWS 2013, p.
52). The Sage Grouse Initiative has
worked with ranchers to implement
voluntary conservation projects in sagegrouse habitat, including the marking of
fences. To date, NRCS has marked or
removed 563 km (350 mi) of high-risk
fence to reduce collisions (NRCS 2015a,
p. 6). Conservative estimates indicate
that fence-marking prevents 2,600
collisions annually (NRCS 2015a, p. 22).
Another study found that marking
fences reduced collisions by 83 percent
over unmarked fences in Idaho during
the breeding season (Stevens et al. 2012,
p. 1). Fence-marking is effective at
reducing collisions, but it is unlikely to
eradicate collisions completely (Stevens
et al. 2012, p. 1), and further
information is needed to make
population-level inferences regarding
the impact of reduced collisions
(Stevens et al. 2013, p. 413).
Candidate Conservation
Agreements—Non-Federal lands
currently enrolled in CCAAs have
restrictions on building infrastructure
within sage-grouse habitat, require
consolidation of existing infrastructure
when feasible, and require relocating or
marking existing fences. Rangewide,
approximately 745,000 ha (1.8 million
ac) of private lands have landowner
commitments in the programmatic
CCAAs in Oregon and Wyoming.
Enrollment of these areas in the CCAAs
ensures that no infrastructure will be
constructed on those properties in a way
that would adversely impact sage-grouse
and encourages the modification or
management of existing infrastructure to
reduce potential adverse effects.
Infrastructure Summary
The potential threat of new
infrastructure has changed substantially
since the last status review. In 2010, we
found habitat fragmentation, due in part
to infrastructure, to be a threat to the
species, and regulatory mechanisms
were not sufficient to address that threat
into the future. Since then, regulatory
mechanisms provided by Federal Plans
reduce potential future infrastructure on
more than half the species’ range by
eliminating or capping new
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development in important sagebrush
habitat and by implementing project
design features to minimize impacts
(e.g., buffers, noise restrictions, etc.).
State Plans in Wyoming, Montana, and
Oregon provide similar protections on
State and private lands. These
protections are most important in
Wyoming, where historically
infrastructure impacts have been the
highest. Further, considerable effort has
been undertaken by SGI and private
landowners to further reduce impacts
from infrastructure, and in particular,
existing structures such as fencing.
Where existing infrastructure occurs,
some localized impacts are likely to
continue; however, the Federal and
State Plans include measures to avoid
placing new infrastructure in the most
important habitats for the species,
thereby reducing the future risk of
infrastructure development in those
areas. Together, the Federal Plans and
Wyoming, Montana, and Oregon State
Plans reduce infrastructure impacts to
the areas identified as PHMAs and
GHMAs, which encompass
approximately 90 percent of the
modeled breeding habitat across the
species’ range (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness).
Agricultural Conversion
In the 2010 finding, we concluded
that agricultural conversion of sagegrouse habitat was one of the primary
causes of habitat loss and fragmentation
(75 FR 13910, March 23, pp. 13924–
13926). Agricultural conversion
describes the removal of sagebrush
rangelands to create tilled agricultural
crops or re-seeded exotic grass pastures
(Schroeder and Vander Haegen 2011, p.
519; Wisdom et al. 2011, p. 462; USFWS
2013, p. 48). By converting sagebrush
habitats to cultivated croplands and
pastures, agricultural conversion can
reduce and fragment sage-grouse
habitats (Factor A) (Connelly et al. 2004,
p. 7–203; Davies et al. 2011, p. 2575;
Wisdom et al. 2011, p. 462; Knick et al.
2013, p. 1547). Since 2010, new
information about potential future risk
of agricultural conversion has changed
our conclusion about this impact, as
discussed below.
In the past, approximately 11 percent
of the sage-grouse’s historical range was
converted to agriculture, with 32
percent of the entire Columbia Basin
(MZ VI) and 19 percent of the entire
Great Plains (MZ I) converted to
agriculture (Knick et al. 2011, pp. 208–
209). Sagebrush habitats with deep,
fertile soils and abundant precipitation
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were more likely to be converted to
agriculture (Connelly et al. 2004,
p. 1–1; Davies et al. 2011, p. 2575). The
loss of these productive sagebrush
habitats to agriculture displaced some
sage-grouse into less productive
sagebrush habitats (Manier et al. 2013,
p. 1). In the rest of the historical range,
varied topography, soil types, and drier
climates limited the conversion of sagegrouse habitats to agriculture (Knick et
al. 2011, p. 208). As a result, only 10
percent of the Snake River Plain (MZ IV)
and less than 5 percent of the total area
of each remaining MZ were converted to
agriculture (Connelly et al. 2004, p.
5–55; Knick et al. 2011, p. 209). Our
previous 2010 Finding summarized
specific historical losses of sage-grouse
habitats from agricultural conversion
(75 FR 13910, March 23, pp. 13924–
13925).
By reducing and fragmenting sagegrouse habitats, agricultural conversion
may reduce sage-grouse populations
(Smith et al. 2005, p. 314; Walker et al.
2007a, p. 2650; Tack 2009, p. iii;
Johnson et al. 2011, p. 407; Knick et al.
2011, p. 208). Although sage-grouse will
forage on some crops, such as alfalfa
(Schroeder et al. 1999, p. 4), they
typically will not nest or rear broods in
cultivated croplands (Holloran et al.
2005, p. 648; Aldridge and Boyce 2007,
pp. 508, 523). Agricultural conversion
can also reduce the connectivity of
habitats and limit the movement of sagegrouse between populations and
seasonal habitats (Schroeder and Vander
Haegen 2006, pp. 7–8; Knick et al. 2011,
p. 211). Agricultural conversion may
also expose sage-grouse to indirect
effects, such as increased predation,
exposure to pesticides, and the drying
and loss of riparian habitats when water
is diverted for irrigation (Knick et al.
2011, pp. 208–209). Based on the
foraging distances of human-associated
predators hunting near croplands and
urban areas, agricultural conversion
could indirectly influence
approximately 49 percent of sagebrush
habitats rangewide (Connelly et al.
2004, pp. 1–1 and 7–23; Manier et al.
2013, p. 30).
Although agricultural croplands and
pasturelands do not provide suitable
habitat, sage-grouse may feed on
irrigated croplands, particularly during
the late brood-rearing period when other
native plant foods have matured and
dried (Connelly et al. 2004, pp. 4–1 and
4–10; Knick et al. 2011, p. 211). The
type of crop and proximity to adjacent
sagebrush habitats influences whether
sage-grouse will feed on the irrigated
croplands (Swensen et al. 1987, p. 128;
Blus et al. 1989, p. 1141; Connelly et al.
2004, p. 4–18). Sage-grouse generally do
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not feed on dry, unirrigated fields that
have fewer forbs and insects than
irrigated fields. Additionally, increased
predation, exposure to pesticides, WNv,
and collisions with fences may
outweigh any benefits to sage-grouse
provided by cultivated cropland and
pastures (Blus et al. 1989, pp. 1141–
1142; Braun 2006, p. 11; Walker 2008,
p. 184, Holloran et al. 2005, p. 648,
Aldridge and Boyce 2007, p. 508; Coates
et al., in press).
Rates of agricultural conversion likely
slowed and will continue to slow
because the most productive sagebrush
habitats have already been converted to
croplands or pasturelands (Baker et al.
1976, p. 167). Since 1982, acres of new
cropland within occupied sage-grouse
range have decreased in every State
except South Dakota (NRCS 2013, pp.
63–79), likely due to the decreasing
suitability of the remaining habitats for
agriculture. However, economic
incentives for biofuels and technological
advances in irrigation and cultivation
could potentially increase conversion
rates in the future (Knick et al. 2011, p.
208). In 2010, we determined that
agricultural conversion would continue
to affect sage-grouse in the future based
on historical loss and fragmentation of
sage-grouse habitat from agricultural
conversion.
To more precisely evaluate the
potential risk to sage-grouse from future
agricultural conversion, we compared a
new cropland suitability model (Lipsey
et al. 2015, entire) with the Population
Index (Doherty et al. 2015, entire). The
cropland suitability model uses soil and
climate data to predict the probability
that an area could be converted to
cropland (Lipsey et al. 2015, entire).
The Population Index model identifies
important sage-grouse population
centers (Doherty et al. 2015, entire). By
comparing these two models, we
quantified the percent of the sage-grouse
Population Index that overlaps with
sagebrush habitats in the MZ I that have
a high potential to be converted to
agriculture in the future. Because the
cropland suitability model was only
finalized for MZ I for reasons explained
below, the results of this exercise
specifically apply only to MZ I, but can
be used to assess potential probabilities
of conversion to agriculture rangewide.
The cropland suitability model was
developed only for the Great Plains (MZ
I), and not for the Columbia Basin (MZ
VI) or the Snake River Plain (MZ IV),
where agricultural conversion also
occurred, due to the limited availability
of land cover data, the small size of the
Columbia Basin (MZ VI), and
differences in the way sage-grouse use
agricultural fields between these three
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MZs. Additionally, more of the
Columbia Basin (MZ VI) has already
been converted to cropland (Knick et al.
2011, pp. 208–209) and the Great Plains
(MZ I) has the highest percentage (69
percent) of private lands (TABLE 2,
above), so the potential risk of
agricultural conversion is greatest in the
Great Plains (MZ I). As a result, the
cropland suitability model focused only
on the MZ with the greatest potential to
be converted in the future, so our
overlay analysis with the sage-grouse
breeding distribution model could only
be calculated in the Great Plains (MZ I).
However, by limiting the analysis to the
MZ I, the MZ with the greater potential
to be converted, the result represents a
worst-case scenario that is informative
for the rest of the range where future
conversion is less likely to occur.
Additionally, it would be speculative to
analyze future technological agricultural
advancements or economic incentives
that could potentially increase
agricultural conversion on lower quality
soils.
Our comparison of the cropland risk
model and the Population Index model
showed that the majority of the sagegrouse Population Index overlaps with
sagebrush habitats in MZ I that have a
low probability of being converted to
agriculture (Lipsey et al. 2015, entire;
USFWS 2015a). Specifically, 87 percent
of the sage-grouse Population Index in
the MZ I occur in sagebrush habitats
unlikely to be converted into agriculture
due to their soils, climate, and other
factors that were incorporated into the
cropland suitability model. This
analysis confirms that the sage-grouse
habitats in MZ I have already been
converted to agriculture and the
remaining habitats important to sagegrouse are less suitable for agriculture
and less likely to be converted in the
future.
Although some sage-grouse in MZ I
could be exposed to agricultural
conversion in the future, 87 percent of
the Population Index are not likely at
risk from agricultural conversion.
Although this result contradicts other
sources of information that postulated a
greater risk to sage-grouse from future
agricultural conversion (RISCT 2012, p.
7; USFWS 2013, pp. 16–29), this
analysis quantitatively determined that
the risk of exposure to future
agricultural conversion is low in MZ I.
Because the risk of conversion is
greatest in MZ I, a portion of MZ IV in
the Snake River Plain in Idaho and the
Columbia Basin in Washington (MZ VI)
would likely have lower percent overlap
between sage-grouse breeding
populations and areas likely to be
converted to agriculture. With improved
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land cover datasets, the cropland
suitability model could be expanded to
the other MZs to test this assumption.
However, the overlay analysis indicates
that the potential for agricultural
conversion is low in the Great Plains
(MZ I), and there is no information to
indicate that the risk to sage-grouse
would be greater in any other MZ.
Conservation Efforts
Since 2010, a number of conservation
efforts have been implemented to
reduce the risk of new habitat loss due
to agricultural conversion or to address
effects from historical agricultural
conversion. These include the NRCS
efforts with private land owners and
other State and Federal Plans or
programs. As discussed below, these
conservation efforts are relevant to the
potential threat of agricultural
conversion.
Sage Grouse Initiative—In 2010,
NRCS launched the SGI to reduce
potential threats facing sage-grouse on
private lands (see Sage Grouse Initiative,
above, for a detailed discussion of this
program). Conservation measures used
by the NRCS to reduce impacts to sagegrouse from agricultural conversion
include conservation easements, the
Farm Bill’s Sodsaver provision, and the
Conservation Reserve Program (CRP).
Conservation easements are voluntary
agreements between landowners and
land trusts, the NRCS, or other
organizations and agencies that
maintain the easement in private
ownership to benefit natural resources,
often in perpetuity. The conservation
easements carry binding and
enforceable restrictions on development
and other activities, and landowners
may be reimbursed. Conservation
easements may permanently protect
sagebrush habitat from ex-urban
development or agricultural conversion.
The NRCS estimates that, since 2010,
approximately 183,013 ha (451,884 ac)
have been protected by conservation
easements across the overall range of the
sage-grouse (NRCS 2015a, p. 6).
Conservation easements effectively
block the loss and fragmentation of sagegrouse habitats by prohibiting ex-urban
development and agricultural
conversion on the easement lands and
were recommended in the COT Report
(USFWS 2013, pp. 48, 50).
Approximately 79 percent of the
conservation easements are located
inside PACs, and 94 percent of the
easements provide permanent
protection against future agricultural
conversion and ex-urban development
(NRCS 2015a, p. 8). Although SGI
easements address a variety of potential
impacts to sage-grouse, including
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agricultural conversion, many of the
easements that are already in place are
not currently located in sagebrush
habitats that are at risk of agricultural
conversion, according to the new
cropland suitability and breeding
distribution models (Lipsey et al. 2015,
entire; USFWS 2015a). However,
Montana’s recently finalized Greater
Sage-Grouse Stewardship Act funds
additional sage-grouse conservation that
could be used to secure new
conservation easements in Montana
(NRCS 2015a, p. 3), and with the new
models, new easements could be better
targeted to conserve sage-grouse habitats
that may be vulnerable to future
agricultural conversion in Montana.
Expanding the cropland suitability
model into the Snake River Plain (MZ
IV) and the Columbia Basin (MZ VI)
would also help target conservation
easements to prevent future agricultural
conversion in those MZs.
The 2014 Farm Bill’s Sodsaver
provision also reduces habitat loss and
fragmentation from agricultural
conversion in Montana, North Dakota,
and South Dakota (MZ I) (NRCS 2015a,
p. 3). The Sodsaver provision
discourages agricultural producers from
converting native vegetation to annually
tilled crops by reducing their insurance
subsidies and disaster assistance if they
convert native habitats into croplands
(NRCS 2015a, p. 4). The NRCS reports
that the Sodsaver policy, in conjunction
with proposed policies on State lands
and continued investments in
conservation easements, reduces sagegrouse population declines that would
have occurred without these
conservation measures (NRCS 2015a,
p. 1).
The voluntary Conservation Reserve
Program (CRP) allows private
landowners to receive annual payments
from USDA’s Farm Service
Administration in exchange for
establishing permanent vegetation on
idle or erodible lands that were
previously used for growing crops.
Enrolled lands are set aside for 10 to 15
years and cannot be grazed or used for
other agricultural uses except under
emergency drought conditions. The
enrollment of CRP lands can be
detrimental to sage-grouse when
sagebrush rangelands are converted to
marginal croplands, and then converted
into grasslands, not sagebrush habitats
(USFWS 2013, p. 48). However, some
CRP lands can provide nesting, broodrearing, and wintering habitat for sagegrouse (Schroeder and Vander Haegen
2006, p. 32; Schroeder and Vander
Haegen 2011, pp. 524–528). When
agricultural fields are returned to sagegrouse habitats, enrollment in the CRP
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generally benefits sage-grouse,
especially in the Columbia Basin (MZ
VI) and Great Plains (MZ I) where
agricultural conversion historically
occurred (Knick et al. 2011, p. 208).
However, enrollment in CRP fluctuates
with Federal funding and crop prices,
and the long-term effectiveness of the
CRP to improve sage-grouse habitats is
uncertain. However, in Washington,
lands have frequently remained enrolled
long enough for sagebrush to reestablish
and sage-grouse to return to nest
(Schroeder and Vander Haegen 2011, p.
524).
Candidate Conservation
Agreements—The CCAAs for sagegrouse in Oregon and Wyoming include
appropriate restrictions on agricultural
conversion, habitat fragmentation, and
removing sagebrush that benefit sagegrouse rangewide. Approximately
745,000 ha (1.8 million ac) of private
lands have landowner commitments in
the programmatic CCAAs in Oregon and
Wyoming. Enrollment in these CCAAs
ensures that these lands are managed
consistent with sage-grouse habitat
objectives.
State Plans—The Wyoming and
Montana Plans have regulatory
mechanisms that reduce agricultural
conversion in these States on applicable
lands. The Wyoming Plan covers all
land ownership types and contains a 5
percent disturbance cap in Core Areas
that includes disturbance from
agricultural conversion (Wyoming E.O.
2015–4, Attachment A, p. 6). The
Montana Plan allows the State to
prohibit agricultural conversion and the
eradication of sagebrush on State Trust
Lands in core habitat, general habitat,
and connectivity areas (Montana 10–
2014, pp. 7–14). By regulating where
and how much agricultural conversion
can occur within sage-grouse habitats,
whether by regulating the amount of
disturbance or prohibiting habitat loss
on State Trust Lands, both the Wyoming
Plan and Montana Plan provide
effective regulatory mechanisms to limit
future agricultural conversion in their
State (see Regulatory Mechanisms,
below).
Federal Plans—The Federal Plans
were not designed to address
agricultural conversion, because Federal
lands are not used or converted for
agricultural production (BLM and USFS
2015, entire). However, transfer of
Federal lands to private ownership is
possible and, once privately owned,
could be converted to agriculture. The
Federal Plans require that any PHMA
and GHMA be retained in Federal
ownership, thus preventing agricultural
conversion (BLM and USFS 2015,
entire). Exceptions to this requirement
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59895
could occur if the land transaction
would benefit sage-grouse or not cause
any adverse effects. By prohibiting their
transfer to private ownership, the
Federal Plans reduce the risk of
agricultural conversion on more than
half the occupied range of the species.
Agricultural Conversion Summary
In 2010, we identified agricultural
conversion as one of three factors
contributing to the loss and
fragmentation of sage-grouse habitats,
based on past rates of agricultural
conversion that would likely continue.
Historically, agricultural conversion
reduced and fragmented sage-grouse
habitats, resulting in population
declines and the loss of connectivity in
some areas (Knick et al. 2011, p. 208).
Agricultural conversion may also
expose sage-grouse to pesticides,
increased predation, and invasive
plants. However, the sage-grouse
habitats most conducive to agriculture
have already been converted to crop and
pasturelands, and the remaining
habitats are generally not suitable for
agriculture and will likely not be
converted. The new cropland suitability
model compared with the breeding
distribution model confirms that the
sage-grouse habitats in the Great Plains
(MZ I) most likely to be converted to
agriculture have already been converted
and that the remaining habitats have a
low probability of conversion because of
soil types and climatic limitations.
Approximately 87 percent of the
important sage-grouse populations in
MZ I occur in habitats that have low
probabilities of conversion to
agriculture. The potential for
agricultural conversion is also low in
the Columbia Basin (MZ VI) and the
Snake River Plain (MZ IV), where more
sagebrush habitats have already been
converted. Additionally, acres of new
cropland decreased in every State
except South Dakota over the last 30
years. Further, NRCS SGI conservation
easements, the 2014 Farm Bill’s
Sodsaver provision, USDA’s CRP, the
Wyoming and Montana Plans, and BLM
and USGS land-transfer prohibitions
implemented since 2010 help reduce
habitat loss and fragmentation from
agricultural conversion, consistent with
recommendations in the COT Report
(USFWS 2013, p. 48–49).
Wildfire and Invasive Plants
In 2010, we evaluated the effect of
wildfire on sage-grouse and concluded
that wildfire was a substantial
contributor to habitat loss and
fragmentation, particularly in the Great
Basin portion of the range (MZs III, IV,
V, and VI). The number and size of fires
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has increased compared to historical fire
regimes (Miller et al. 2011, pp. 169,
176). A spatial analysis of areas burned
reveals that approximately 18 percent of
sagebrush habitat across the occupied
range of sage-grouse burned between
1980 and 2007, including 27 percent of
the habitat in the Great Basin portion of
the range. Further, increased fire
frequency is being driven by the
expansion of nonnative invasive annual
grasses, primarily cheatgrass. In 2010,
we analyzed invasive annual grasses
separately and concluded that it was a
serious rangewide threat (75 FR 13910,
March 23, 2010, pp. 13937). The 2010
finding concluded that habitat
fragmentation, caused in part by fire,
was a threat to the species such that
listing was warranted under the Act (75
FR 13910, March 23, 2010, pp. 13986–
13988).
Since 2010, the rangeland fire
management community has made
strides in addressing wildfire and its
effects on habitat fragmentation in sagegrouse range, as well as the interactions
between wildfire and invasive plants.
Specifically, a suite of efforts such as
the revised/amended Federal Plans and
the associated FIAT assessments;
Secretarial Order 3336; and other,
related efforts represent a marked shift
by the fire management community
toward a more holistic approach to
identifying, prioritizing, and managing
impacts from wildfire in sage-grouse
habitat (with fire fighter and human
health and safety remaining as the
highest priority in wildfire
management). This marked shift is
particularly important given the degree
to which invasives and wildfire have
the potential to reduce available habitat.
Given the increased management
emphasis, we still expect to lose some
habitat to fire, but we now expect those
losses to be less than would have
otherwise occurred.
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This new approach includes
numerous updates to wildfire
management strategies and planning
tools. For example, the FIAT and
Secretarial Order established local
guidance and set forth enhanced
policies and strategies for preventing
and suppressing wildfire and for
restoring sagebrush landscapes
impacted by fire across the Great Basin
region. Fuel treatments in sage-grouse
habitats are now prioritized over
treatments in other areas (Murphy et al.
2013, p. 4). Additionally, managers have
developed protocols to ensure that plans
are current and include guidance for fire
management in relation to sage-grouse
and sage-grouse habitats. These changes
have affected what areas are prioritized
for firefighting resources during periods
of fire activity (Murphy et al. 2013, p.
4). While we do not currently know the
extent to which these regulatory and
non-regulatory mechanisms will
alleviate the wildfire impact to sagegrouse, we are confident that that this
strategic and coordinated effort by
wildfire managers to protect sage-grouse
habitat will reduce the impacts from
wildfire. Targeting the protection of
important sage-grouse habitats during
fire suppression and fuels management
activities could help reduce loss of key
habitat due to fire if directed through a
long-term, regulatory mechanism.
Altered Fire Cycle
Historically, wildfire was the
principal natural disturbance in the
sagebrush ecosystem (Factor A).
Sagebrush likely consisted of extensive
sagebrush habitat dotted by small areas
of grassland. This ecosystem was
maintained by long interludes of
primarily numerous small fires,
punctuated by large fire events that
consumed larger expanses (Baker 2011,
pp. 196–197; Bukowski and Baker 2013,
pp. 559–561). Historical mean fire-
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return intervals (the average number of
years between two successive fires) have
been estimated to be 100 to 350 years in
low-lying, xeric, Wyoming big
sagebrush communities, and 50 to more
than 200 years in more mesic areas and
mountain big sagebrush communities
(Baker 2006, p. 181; Mensing et al. 2006,
p. 75; Baker 2011, pp. 194–195; Miller
et al. 2011, p. 166; Bukowski and Baker
2013, entire). Fire by itself, managed
within a historical range of variation,
may not necessarily be a threat to sagegrouse. However, altered fire intensity,
size, and frequency, due in part to the
presence of invasive annual grasses, has
resulted in fire posing an increasing
threat to sage-grouse, especially in the
Great Basin.
Since the mid- to late 1800s, human
activities have changed the vegetation
composition and structure of the
sagebrush ecosystem that has
subsequently altered the fire regime
(Chambers et al. 2014a, p. 3). Changes
in wildfire frequency have adversely
affected larger parts of sage-grouse
range, particularly in the Great Basin
(Figure 6). From 1980 to 2007, the
number of fires and the total area
burned increased in most MZs (Miller et
al. 2011, pp. 169, 176). We conducted a
geospatial analysis of burned areas that
shows that between 2000 and 2008,
within the Great Basin, more than 2.7
million ha (6.7 million ac) burned
within the occupied range of sagegrouse, with more than 2 million ha (5
million ac) occurring in MZ IV alone
(Table 7). Between 2009 and 2014, an
additional 1.8 million ha (4.6 million
ac) burned within the occupied range of
sage-grouse, with most of the impact
occurring in MZs IV and V in the Great
Basin (Table 7). Between 2000 and 2014,
the Great Basin experienced an average
burn rate of approximately 0.85 percent
per year (Table 7).
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TABLE 7—AREA OF SAGE-GROUSE OCCUPIED RANGE BURNED FROM 2000 TO 2014 IN THE GREAT BASIN
[Including the Columbia Basin]
2000–2008
area burned
Management zone
III ..........................................................................................
IV .........................................................................................
V ..........................................................................................
VI .........................................................................................
Totals ............................................................................
ha
ac
ha
ac
ha
ac
ha
ac
ha
ac
...................
...................
...................
...................
...................
...................
...................
...................
...................
...................
410,730
1,014,937
2,029,750
5,015,622
262,033
647,499
27,649
68,434
2,730,162
6,746,492
2009–2014
area burned
148,993
368,171
1,073,048
2,651,560
580,745
1,435,053
61,963
153,116
1,864,749
4,607,900
2000–2014
area burned
559,723
1,383,108
3,102,789
7,667,182
842,788
2,082,552
89,612
221,550
4,594,912
11,354,392
Annual
burn rate 1
(percent)
0.32
1.32
0.72
0.54
0.85
We anticipate that these average burn
rates will continue in the future and
could increase due to cheatgrass
expansion, climate change, and drought
(see Wildfire and Invasive Plant
Impacts, below). These burn rates are
based on wildfire-impacted acres each
year and do not account for areas
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previously burned that re-burn each
year; as a result, this rate likely
overestimates the amount of habitat that
could be impacted each year, as re-burn
areas may no longer provide habitat.
This burn rate is similar to the current
and future burn rates analyzed in the
2010 finding.
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Fire occurring within the range of
sage-grouse can cause direct loss of
habitat, resulting in negative impacts to
breeding, feeding, and sheltering
opportunities for the species (Call and
Maser 1985, p. 17). In addition to the
direct habitat loss, fire can also create a
functional barrier to sage-grouse
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1 Annual burn rates were calculated using average number of acres burned per year (2000–2014) divided by total occupied range for each
area assessed.
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movements and dispersal that
compounds the influence wildfire can
have on populations and population
dynamics (Fischer et al. 1997, p. 89). In
some cases, fire can isolate sage-grouse
populations, thereby increasing their
risk of extirpation (Knick and Hanser
2011, p. 395; Wisdom et al. 2011, p.
469).
Wildfire is associated with sagegrouse declines across the West (Beck et
al. 2009, p. 400; Johnson et al. 2011, p.
424; Knick and Hanser 2011, p. 395).
The extent and abundance of sagebrush
habitats, the proximity to burned
habitat, and the degree of connectivity
among sage-grouse populations affects
persistence (Johnson et al. 2011, p. 424;
Knick and Hanser 2011, pp. 403–404;
Wisdom et al. 2011, p. 461). Fire has
been found to cause negative population
trends and lek extirpation (Knick and
Hanser 2011, p. 395; Johnson et al. 2011,
p. 422).
Invasive Plants and the Wildfire Cycle
In 2010, we analyzed the effects of
wildfire and invasive plants separately
(75 FR 13910, March 23, 2010, pp.
13931–13937). Since that time, we have
come to better understand the positive
feedback loop between cheatgrass and
wildfire, and believe that fire and
invasive plants must be assessed, and
managed, together to fully address
potential impacts on sage-grouse and its
habitat. Evidence of a significant
relationship exists between an increase
in wildfire occurrence caused by
cheatgrass invasion in the Snake River
Plain (MZ IV) and Northern Great Basin
(MZ V) since the 1960s (Miller et al.
2011, p. 167) and in northern Nevada
and eastern Oregon since 1980 (MZs IV
and V). The extensive distribution and
highly invasive nature of these invasive
annual grasses poses increased wildfire
risk and permanent loss of sagebrush
habitat, because areas disturbed by fire
are highly susceptible to further
invasion and ultimately habitat
conversion to an altered community
state (Miller et al. 2011, p. 182).
Progressive losses of resilience and
resistance can result in the crossing of
abiotic and biotic thresholds (Beisner et
al. 2003, pp. 376–382) and may lead to
a catastrophic shift in community
structure (Scheffer et al. 2009, pp. 53–
59; Reisner et al. 2013, p. 1047).
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Functional habitat loss is occurring
because of long-term loss of sagebrush
cover and conversion to nonnative
annual grasses (primarily cheatgrass),
mainly due to an increase in wildfire
occurrence, intensity, and severity
(Miller et al. 2011, p. 183). The positive
feedback process between cheatgrass
and wildfires facilitates future fires,
sagebrush loss, and cheatgrass
dominance, resulting in entire
landscapes being converted to
nonnative annual grasslands (Miller et
al. 2011, p. 183). Invasive plants reduce
and, in cases where monocultures
occur, eliminate vegetation that sagegrouse use for food and cover and
fragment existing sage-grouse habitat
(Miller et al. 2011, pp. 160–164).
Invasives do not provide quality sagegrouse habitat and, where invasive
plants are present, sage-grouse are
potentially impacted both seasonally
(e.g., loss of forbs and associated
insects) and long term (e.g., functional
habitat loss) (Manier et al. 2013, p. 88).
Interactions among disturbances and
stressors may have cumulative effects
(Chambers et al. 2014c, pp. 365–368).
Invasive annual grasses and noxious
perennials continue to expand their
range, facilitated by ground
disturbances, caused by more frequent
and more severe wildfires, improper
grazing of native perennial plants by
domestic livestock and free-roaming
equids, infrastructure, and other
anthropogenic activity (Rice and Mack
1991, p. 84; Gelbard and Belnap 2003,
p. 420; Zouhar et al. 2008, p. 23), but
disturbance is not required for invasives
to spread (Young and Allen 1997, p.
531; Roundy et al. 2007, p. 614).
Invasions also may occur sequentially,
where initial invaders (e.g., cheatgrass)
are replaced by new invasive plants
(Crawford et al. 2004, p. 9; Miller et al.
2011, p. 160). Long-term changes in
climate that facilitate invasion and
establishment by invasive annual
grasses further exacerbate the fire
regime and accelerate the loss of
sagebrush habitats (D’Antonio and
Vitousek 1992, pp. 63–87). The effects
of disturbance will likely be amplified
by greater susceptibility of habitats to
burn as well as decreased likelihood for
recovery of sagebrush ecosystems
(Miller et al. 2011, p. 183).
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The arrival of European settlers in the
mid-1800s initiated a series of changes
in vegetation composition that impacted
sagebrush ecosystems (Chambers et al.
2014a, p. 3). For example, improper
grazing practices decreased native
perennial grasses and forbs (Chambers
et al. 2014a, p. 3; Miller and Eddleman
2001, p. 17; Miller et al. 2011, p. 181),
which facilitated the invasion of
nonnative annual grasses, particularly
cheatgrass and Taeniatherum caputmedusae (medusahead). This increase
in fuel load and the lower fuel moisture
content of the invasive annual grasses
has resulted in more frequent, higher
intensity fires (Brooks et al. 2004, pp.
679–680). Moreover, invasive annual
grasses expand rapidly after fire
disturbances becoming a readily
burnable fuel source, and ultimately
lead to a recurrent fire cycle that
prevents sagebrush reestablishment
(Zouhar et al. 2008, p. 41; Eiswerth et
al. 2009, p. 1324; Miller et al. 2011, pp.
163–170).
Currently, invasive annual grasses are
known to occur across the sage-grouse
occupied range, with the greatest
infestations occurring in the Great Basin
(Figure 7). In the Great Basin, cheatgrass
dominates over 6.9 million ha (17
million ac) and occupies an additional
25 million ha (62 million ac) as a
component of the plant community
(Diamond et al. 2012, p. 259).
Approximately 58 percent of sagebrush
habitat in the Great Basin is believed to
be at moderate to high risk of cheatgrass
invasion during the next 30 years
(Suring et al. 2005, p. 138). Although
nonnative annual grasses are more
pervasive in the Great Basin than the
Rocky Mountain States (Figure 7)
(Connelly et al. 2004, p. 5–9; Miller et
al. 2011, p. 160), in recent years,
cheatgrass (and other nonnative annual
grasses) has increased its spread across
the eastern portion of the species’ range
(Mealor et al. 2012, p. 427). Without
effective management, the invasion of
cheatgrass into the eastern portion of the
species’ range is likely to continue
(Mealor et al. 2012, p. 427), and even
now, with more effective management
being employed, we expect that sagegrouse habitat will continue to be lost to
some degree in the future.
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Nonnative annual grasses, such as
cheatgrass and medusahead, have
substantially altered regional fire
regimes (Balch et al. 2013, p. 179).
Cheatgrass-dominated rangelands affect
sagebrush ecosystems by shortening
fire-return intervals and perpetuating
their own persistence and intensifying
the role of wildfire (Whisenant 1990, p.
4). Sites dominated by cheatgrass may
be four times more likely to burn than
native sagebrush (Balch et al. 2013, p.
178). Invasive annual grasses increase
the amount of fine fuels, resulting in
wildfires that burn hotter and more
evenly than historical times (Miller et
al. 2011, p. 167). Hotter and more
expansive wildfires frequently burn
larger contiguous areas of sagebrush and
leave fewer pockets of unburnt
sagebrush that would be available to
recolonize the burned areas. The
positive feedback process between
cheatgrass and wildfire converts highdiversity native communities into lowdiversity communities dominated by
invasive plants that are unsuitable for
sage-grouse and at increased risk of
wildfire reoccurrence (Chambers et al.
2014a, pp. 3–8).
Wildfire and Invasive Plant Impacts
While it is known that sage-grouse
respond negatively to wildfire (Johnson
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et al. 2011, pp. 424–425; Knick and
Hanser 2011, pp. 395–403), it is
challenging to predict the location and
extent of future wildfires. However, a
recent study provides insight to the
wildfire and invasive plant cycle and
serves as a useful tool in predicting
future impacts (Chambers et al. 2014a,
entire). This study used soil temperature
and moisture regimes as an indicator of
landscapes’ resilience to disturbance
and resistance to invasive annual
grasses. This work classified different
ecological soil and moisture regimes
(Chambers et al. 2014a, p. 16) into three
categories of resiliency and resistance to
wildfire and invasive species
disturbance (which is known as the R&R
matrix). For example, areas with low
R&R values tend to be prone to invasion
by cheatgrass (and, therefore, are at
higher risk of large catastrophic
wildfires) because these ecosystems
have relatively lower resilience to
disturbance and higher climate
suitability for invasive annual grasses;
therefore, low R&R areas are less likely
to provide ecological benefits within the
sagebrush ecosystem in the future. We
assessed the risk of future wildfire and
invasive plant invasion by examining
the amount of breeding habitat
occurring within the three R&R matrix
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classes. Habitat identified as low
resistance was considered most likely to
be adversely affected by wildfire and
invasives. Because nonnative annual
grasses are more prevalent in the Great
Basin than the Rocky Mountain States
(Connelly et al. 2004, p. 5–9; Miller et
al. 2011, p. 160), we limited our analysis
to the Great Basin MZs III, IV, and V.
In our analysis, sage-grouse in MZ III
appear to be at greatest risk from
wildfire and nonnative annual grass
invasion, with 54 percent of sage-grouse
breeding habitat occurring in areas
classified as having low resistance. The
majority of sage-grouse breeding habitat
in MZs IV and V occur in areas having
either high or moderate resistance and
resiliency to fire and invasives (Table 8).
TABLE 8—PERCENT OF SAGE-GROUSE
BREEDING HABITAT WITHIN EACH
GREAT BASIN MANAGEMENT ZONE
THAT OCCURS WITHIN THE THREE
CLASSES OF RESILIENCY AND RESISTANCE TO INVASIVE PLANTS AND
WILDFIRE
MZ III
(%)
Wetland/Riparian .................
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MZ IV
(%)
2
MZ V
(%)
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TABLE 8—PERCENT OF SAGE-GROUSE
BREEDING HABITAT WITHIN EACH
GREAT BASIN MANAGEMENT ZONE
THAT OCCURS WITHIN THE THREE
CLASSES OF RESILIENCY AND RESISTANCE TO INVASIVE PLANTS AND
WILDFIRE—Continued
MZ III
(%)
High Resistance
Moderate Resistance .........
Low Resistance
MZ IV
(%)
MZ V
(%)
16
35
8
28
54
36
27
59
33
While useful for estimating future
wildfire and invasive plant risk,
sagebrush resistance and resilience does
not necessarily equate to sage-grouse
resilience and resistance. Depending on
the location and extent of wildfires, the
amount of undisturbed habitat may be
diminished such that it cannot sustain
local populations. In addition,
depending upon where wildfires occur,
impacts to sage-grouse could be greater
due to lost connectivity between
populations. However, without the
ability to predict the location, size, and
severity of a wildfire, it is difficult to
predict with certainty the location and
degree of habitat fragmentation that may
occur in the future or the associated
population impacts.
A recent study examined the potential
impact of wildfire and invasive plants
on future sage-grouse population trends
in the Great Basin (Coates et al. 2015,
entire). This study examined 30 years of
wildfire and population trend data to
estimate Great Basin population trends
over the next 30 years, with and without
additional management to reduce
wildfire impacts (Coates et al. 2015, pp.
6–18). Without additional management,
wildfire and invasive plants are forecast
to cause sage-grouse abundance in the
Great Basin to decline by 43 percent by
2044 (Coates et al. 2015, pp. 18–31).
Improved management of wildfire
suppression and invasive plant
infestation could reduce the rate of
decline depending upon the success rate
of the management approach (Coates et
al. 2015, p. 34). This study did not
consider the impact of post-wildfire
restoration projects, which could further
reduce the rate of population decline
(Coates et al. 2015, p. 34). The projected
future impact of fire on abundance
trends likely also depends upon
climatic conditions (Coates et al. 2015,
p. 34), which, as discussed in Climate
Change and Drought (see below), is
difficult to forecast with certainty 30
years into the future.
Without changes in wildfire and
invasive plant management, we
anticipate that wildfire would continue
to affect the Great Basin at the current
rate of about 0.85 percent per year (see
Altered Fire Cycle, above). This rate
could potentially increase due to the
intensifying synergistic interactions
among fire, human activity, invasive
plants, and climate change (Neilson et
al. 2005, p. 157; Miller et al. 2011, pp.
179–184). Increased human presence
and associated infrastructure, such as
roads and power lines, could increase
the risk of human-caused wildfires. Any
future decreases in wildfire and
invasive plant risk is dependent upon
the successful implementation of
wildfire and invasive conservation
efforts, as discussed below.
Conservation Efforts
As mentioned above, since 2010,
wildfire managers have taken significant
steps to better understand and address
the impacts of wildfire on sage-grouse
habitat. As part of that effort, local,
State, and Federal land managers have
undertaken considerable efforts to
address the impacts of wildfire and
invasive plants. Federal, State, and local
partners have implemented a number of
projects and programs to prevent and
suppress the spread of wildfire and
invasive plants, and where impacts have
already occurred, to restore, consistent
with recommendations in the COT
Report (USFWS 2013, pp. 40–43). As
discussed further below, the Federal
Plans, FIAT assessments, and
Secretarial Order provide guidance,
coordination, and commitments for
Federal and State agencies and private
landowners to address the wildfire and
invasive plants cycle and reduce
impacts to sage-grouse.
The BLM has a long history of
implementing vegetation management
treatments and has made considerable
investments in fuels and restoration
treatments within the sagebrush
ecosystem since 2010. Analyses of more
than 4,000 completed BLM projects
suggest these treatments provide direct
and indirect benefits to sage-grouse
populations and have been effective at
ameliorating the impacts of wildfire and
invasives to sage-grouse (Table 9). The
strong emphasis on sage-grouse since
2010 is reflected through focusing
additional and existing resources to
protect, conserve, and restore sagegrouse habitat. This emphasis has
shifted priorities in many of the BLM’s
programs that treat vegetation, including
fuels management and post-fire
recovery. The BLM has incorporated
emerging science, monitoring results,
and adaptive management to influence
and modify vegetation management
work to achieve the most ecosystem and
landscape benefit.
TABLE 9—BUREAU OF LAND MANAGEMENT PROJECTS IMPLEMENTED SINCE 2009 TO AMELIORATE THE IMPACTS OF
WILDFIRE AND INVASIVES TO SAGE-GROUSE
[Adapted from DOI 2015e, pp. 3–5]
Completed
asabaliauskas on DSK5VPTVN1PROD with PROPOSALS
Treatment
Number
of
projects
In-progress
ha
ac
Number
of
projects
ha
Planned
Number
of
projects
ac
ha
ac
Habitat Restoration ......................
Conifer Removal ..........................
Wildfire Pre-suppression ..............
Habitat Restoration Following
Wildfire ......................................
1,395
693
608
322,167
179,756
34,062
796,091
444,186
84,169
102
119
45
33,060
48,099
13,357
81,692
118,854
33,005
40
134
55
5,805
154,661
8,415
14,345
382,175
20,793
554
620,955
1,534,412
25
40,635
100,410
7
16,442
40,628
Totals ....................................
3,250
1,156,940
2,858,858
291
135,149
333,961
236
185,322
457,941
The Federal Plans require that
livestock grazing and feral horses be
managed at levels necessary to achieve
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Land Health Standards (LHS) (see
Grazing and Rangeland Management
and Free-roaming Equids, below). These
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standards include minimizing the
presence of cheatgrass and other
invasive annual grasses within sage-
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grouse habitat. These Federal Plan
requirements will reduce the infestation
of cheatgrass over the long term,
reducing wildfire intensity, size, and
frequency, and restoring a more natural
role of wildfire in the sagebrush
ecosystem.
Within the Great Basin, the efforts by
BLM, USFS, and DOI to address the
impacts of wildfire and invasive plants
on a landscape scale are particularly
noteworthy. The BLM and USFS are
implementing FIAT as part of their
Federal Plans to prioritize actions
directed at reducing the impacts of
invasive annual grasses, wildfires, and
conifer encroachment (BLM 2014,
entire). Additionally, DOI has
committed to the implementation of
Secretarial Order 3336, Rangeland Fire
Prevention, Management, and
Restoration (Secretarial Order), which
will result in a multiagency wildfire
management paradigm shift that
highlights the protection of sagebrush
habitat. The BLM and USFS continue to
implement measures to reduce the
potential threat of wildfire to sagegrouse habitat through greater emphasis
on preventing and suppressing wildfire,
and restoring sagebrush landscapes
threatened by wildfire and invasive
species by means of improved Federal–
State–local collaboration and
coordination. Those efforts, as well as
work by local and State wildfire
managers, are discussed in further detail
below.
Fire and Invasives Assessment Tool—
The FIAT is a collaborative multiagency
effort by Federal, State, and local
wildlife, forestry, and firefighting
organizations that identified potential
project areas and management strategies
in highly valued sage-grouse habitats.
As committed to in the Federal Plans,
implementation of the FIAT
assessments will reduce the potential
impacts to sage-grouse resulting from
invasive annual grasses, wildfires, and
conifer expansion by prioritizing and
focusing wildfire and invasive plant
management efforts on the most
important sage-grouse habitat while still
prioritizing fire fighter and human
safety. Focal habitats were identified
within PACs based on patterns of
ecological resistance and resilience,
landscape sagebrush cover, burn
probability, and conifer expansion,
resulting in the following priority
landscapes: Central Oregon, Northern
Great Basin, Snake/Salmon/Beaverhead,
Southern Great Basin, and Western
Great Basin/Warm Springs Valley. For
each priority landscape, regional
findings were stepped down to describe
local conditions by Project Planning
Area and associated treatment needs
and management priorities (BLM 2014,
p. 9). Assessment of treatment needs
and priorities were based on recent
scientific research on resistance and
resilience of Great Basin ecosystems
(Chambers et al. 2014a, entire, which
was described above) and NRCS soil
surveys that include geospatial
information on soil temperature and
moisture regimes (BLM 2014, p. 3; and
Campbell 2014, entire).
Potential management actions to
resolve resource issues were divided
into proactive approaches (e.g., fuels
management and habitat recovery/
restoration) and reactive approaches
(e.g., fire operations and post-fire
rehabilitation) (BLM 2014, p. 3).
Proactive management strategies are
intended to favorably modify wildfire
behavior and restore or improve
desirable habitat to provide greater
resistance to invasive annual grasses
and/or resilience after disturbances such
as wildfires. Reactive management
strategies are intended to reduce the loss
of sage-grouse habitat from wildfires or
stabilize soils and reduce impacts of
invasive annual grasses in sage-grouse
habitat after wildfires. Proactive
management strategies, if implemented
and effective, will result in long-term
sage-grouse habitat improvement and
stability, while effective reactive
management strategies are essential to
reduce current impacts of wildfires on
sage-grouse habitat, thus maintaining
habitat stability, and allowing for longterm improvements (BLM 2014, pp. 2–
3).
Cumulatively, the FIAT assessments
of the five priority areas identify more
than 16,000 km (10,000 mi) of potential
linear fuel treatments, approximately
2.99 million ha (7.4 million ac) of
potential conifer treatments, more than
2 million ha (5 million ac) of potential
invasive plant treatments, and more
than 7.7 million ha (19 million ac) of
post-fire rehabilitation (i.e., should a fire
occur, the post-fire rehabilitation
identifies which areas BLM would
prioritize for management) within the
Great Basin region (Table 10). The FIAT
assessments also identify siteappropriate management strategies for
fire operations and post-fire decisions.
These assessments provide direction
about the extent, location, and rationale
for management opportunities to
address potential threats to sage-grouse.
This comprehensive and forwardlooking approach to both prevention
and post-fire treatments in the Great
Basin represents a distinct change in
approach and emphasis since we made
our 2010 finding.
TABLE 10—FIAT ASSESSMENT PROJECTS FOR FIVE PRIORITY LANDSCAPES IN THE GREAT BASIN REGION
[Adapted from BLM 2015a, entire]
FIAT Assessment area
Southern
Great Basin
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Habitat Restoration ............
Fuels Treatments ...............
Linear Fuels Treatments ....
Fire Operations 1 ................
Post-Fire Rehabilitation
(ESR) 2.
Conifer Treatments ............
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MZ IV
MZ III
Potential treatment type
MZ V
Totals
Northern
Great Basin
Snake/
Salmon/
Beaverhead
Central
Oregon
Western Great
Basin/Warm
Springs Valley
ha ............
ac .............
ha .............
ac .............
km ............
mi .............
ha ............
ac .............
ha ............
1,203,333
2,973,499
7,322
18,092
2,398
1,490
3,689,627
9,117,260
7,133
1,951,113
4,821,300
185,508
458,400
8,530
5,300
4,829,644
11,934,300
3,960,905
603,792
1,492,000
35,329
87,300
644
400
2,121,162
5,241,500
1,502,963
436,589
1,078,835
231
571
156
97
361,645
893,643
203,865
840,277
2,076,367
n/a
n/a
5,309
3,299
3,268,267
5,605,006
2,069,505
5,035,104
12,442,001
228,390
564,363
17,036
10,586
13,270,346
32,791,709
7,744,370
ac .............
ha ............
ac .............
17,625
954,090
2,357,606
9,787,600
1,254,729
3,100,500
3,713,900
205,621
508,100
503,760
224,530
554,824
5,113,853
354,151
875,126
19,136,738
2,993,121
7,396,156
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TABLE 10—FIAT ASSESSMENT PROJECTS FOR FIVE PRIORITY LANDSCAPES IN THE GREAT BASIN REGION—Continued
[Adapted from BLM 2015a, entire]
FIAT Assessment area
MZ IV
MZ III
Potential treatment type
Totals
Northern
Great Basin
Southern
Great Basin
Invasive Plant Treatment 3
ha .............
ac .............
MZ V
1,196,979
2,957,796
Snake/
Salmon/
Beaverhead
164,748
407,100
Western Great
Basin/Warm
Springs Valley
Central
Oregon
90,407
223,400
212,909
526,109
396,197
979,024
2,061,239
5,093,429
1 Fire operations include preparedness, prevention, and suppression activities. As opposed to proactive, site-specific planned treatments, fire
operations and post-fire rehabilitation treatments are reactive responses to random wildfires.
2 Post-fire rehabilitation includes the BLM’s ESR Program and the USFS’s BAER Program. Program policies limit available funding from 1 to 3
years.
3 For the purposes of FIAT, invasive species were limited to invasive annual grasses.
The planning, implementation, and
monitoring of the FIAT assessments are
a multiyear process. Planning is
completed for some FIAT assessment
projects, and implementation has begun
(Table 11). Others similar projects are in
early planning stages, but are expected
to be implemented in the near future. To
date, the BLM has made substantial
investments in fuels and restoration
treatments to address the impacts of fire
and invasives on sage-grouse habitats,
especially within the FIAT assessment
areas.
TABLE 11—FIAT PROJECTS IMPLEMENTED IN FISCAL YEAR 2015 AS OF AUGUST 30, 2015
[BLM 2015h, attachment 1]
FY15 FIAT and other sage-grouse fuels program work
Completed
Treatment
Number of
projects
ha
In-progress
ac
Number of
projects
ha
ac
324
130
248
56,052
16,778
74,111
138,508
41,460
183,134
146
74
90
22,210
2,217
25,971
54,884
5,480
64,176
Totals ................................................
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Conifer Removal ......................................
Wildfire Pre-suppression ..........................
Habitat Restoration ..................................
702
146,941
363,102
310
50,398
124,540
Secretarial Order 3336—On January 5,
2015, the Secretary signed Secretarial
Order 3336 (Secretarial Order), which
sets forth enhanced policies and
strategies for preventing and
suppressing rangeland fire and for
restoring sagebrush landscapes
impacted by fire across the Great Basin
region (DOI 2015b, entire). The
Secretarial Order establishes a
Rangeland Fire Task Force (Task Force),
which completed an Implementation
Plan (DOI 2015d, entire) that established
a roadmap to accomplish the objectives
of the Secretarial Order. The
Implementation Plan also provided a
timeline and methodology to be used in
developing two separate reports on
short- (2015 western fire season) and
long-term (2016 western fire season and
beyond) actions and activities that will
be implemented to further address the
impacts of wildfire in the Great Basin.
The Secretarial Order complements the
FIAT process by providing support and
resource commitments for some of the
projects identified in the FIAT
assessments. For example, the
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Secretarial Order emphasizes the
research on wildfire and invasive plant
prevention and restoration (DOI 2015b,
entire) that will support the adaptive
management of FIAT assessment
projects.
Further, the Secretarial Order
provides clear direction to all affected
Department of the Interior bureaus (DOI
2015b, entire), in particular BLM, for
prioritizing actions to address key
elements of wildfire management,
including effective rangeland
management, fire prevention, fire
suppression, and restoration at a
landscape scale. Building on BLM and
USFS’ long and successful history of
managing wildfire in the Western
United States, the Secretarial Order
focuses the existing rangewide
commitment to effective wildfire
management—as well as invasive
species control and restoration—to
protect large, intact sagebrush
landscapes against the destructive
effects of wildfire and invasive species.
For example, BLM has dedicated
increased resources to all aspects of fire
management within the species’ range
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for the 2015 wildfire season. Similarly,
BLM is actively pursuing the long-term
directives in the Final Report
component of the Secretarial Order,
such as a national seed strategy, to
support effective restoration efforts (DOI
2015a).
Initial Report
On March 1, 2015, the Task Force
completed ‘‘SO 3336—The Initial
Report: A Strategic Plan for Addressing
Rangeland Fire Prevention,
Management, and Restoration in 2015’’
(DOI 2015c, entire), detailing activities
that could be undertaken in advance of
the 2015 western fire season to improve
the efficiency and effectiveness of
wildfire management efforts. The
actions identified in the Initial Report
included priorities to strengthen
planning and preparedness, such as
increasing capabilities of rangeland fire
protection associations (RFPA) and
volunteer departments, utilizing veteran
crews, ensuring fire management
organizations are prepared and
functional, and increasing initial attack
and extended attack capability. In
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response, the BLM has allocated
additional resources to reflect these
FY15 priorities (BLM 2015h; DOI 2015a;
DOI 2015e), including:
• Allocating 6 million dollars in
additional base funding to bolster fire
programs for the long term.
• Allocating approximately 10.6
million dollars to hire additional
seasonal firefighters and to support
equipment (e.g., dozers, water tenders,
etc.). Using this funding, the BLM hired
100 additional firefighters in 2015, and
DOI gave each Great Basin State
supplemental funding to cover staffing
shortages. With supplemental funds
from the DOI, the BLM also purchased
new equipment for the 2015 fire season.
An additional 20 single-engine air
tankers were pre-positioned near critical
sagebrush habitat throughout the
western United States. Helicopters were
mobilized to address sage-grouse
priority areas, and the helitack crew size
was increased in order to provide more
efficient initial attack. An additional jet
lead plane was available to insure
support for retardant planes mobilized
to protect these critical areas. The BLM
has also purchased several dozers, dozer
transports, water trailers, and semitrucks to boost or maintain the BLM’s
initial attack resource capability and
initial attack success rate in critical
sagebrush areas in the Great Basin.
• Committing 500,000 dollars to train
rural fire departments and RFPAs in
important sagebrush ecosystems and
sage-grouse habitat areas.
• Providing training for more than
200 veterans to work on 20-person
firefighting crews. California, Nevada,
and Oregon BLM offices have hired
returning veterans who bring skills such
as physical fitness, endurance,
leadership, communications, and
operation of heavy equipment.
In addition to these actions, the BLM
dedicated fuels program funding for
fuels treatment and fire suppression to
Great Basin States (BLM 2015h). Fuels
treatment projects are prioritized and
implemented based on location,
opportunities for success, and overall
benefit to protecting, conserving, and
restoring sagebrush ecosystems and key
sage-grouse habitat. Fire management
59903
actions taken by the BLM during the
2015 wildfire season has resulted in
fewer acres of sage-grouse habitat
burned in the early fire season
compared to past years with similar
weather and fuel conditions (BLM
2015h). For example, the Fuels
Treatment Effectiveness Monitoring
(FTEM) system is a database that
captures anecdotal information when a
wildfire intersects a past fuels treatment
(BLM 2015h). So far in 2015, two fires
in sage-grouse habitat (i.e., the ‘‘499’’
wildfire in Prineville, Oregon and the
‘‘Hwy 290’’ wildfire in Winnemucca,
Nevada) have been entered into the
system and demonstrate the
effectiveness of the fuels treatment.
Additionally, fuels treatments have
reduced the size of unplanned wildfires,
assisted in providing opportunities to
stop or slow the spread of the wildfire,
provided for greater firefighter safety,
and protected sage-grouse habitat (BLM
2015h). Currently the BLM has
completed more than 80 percent of the
action items and activities outlined in
the Initial Report (Table 12).
TABLE 12—SECRETARIAL ORDER INITIAL REPORT ACTIONS IMPLEMENTED IN FISCAL YEAR 2015
[McKnight, BLM, 2015, pers. comm.]
Status
Action item and description
Deliverable
Section 7.b.i. Integrated Response Plans
Completed ...
Completed ...
Completed ...
Completed ...
Completed ...
Completed ...
Completed ...
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Ongoing .......
Ongoing .......
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Action Item #1: Increase the capabilities and use
of rural/volunteer fire departments and RFPAs
and enhance the development and use of veteran crews.
Action Item #2: Ensure local, multi-agency coordination (MAC) groups are functional and MAC
plans are updated.
Action Item #3: Develop and implement minimum
draw-down level and step up plans to ensure
availability of resources for protection in priority
greater sage-grouse habitat.
Action Item #4: Apply a coordinated, risk-based
approach to wildfire response to ensure initial
attack response to priority areas.
Action Item #5: Develop a standardized set of
briefing materials.
Action Item #6: Review and update local plans
and agreements for consistency and currency to
ensure initial attack response to priority greater
sage-grouse areas.
Action Item #7: Develop supplemental guidance
for the use of ‘‘severity funding’’.
Action Item #8: Evaluate the effectiveness of action plans.
Action Item #9: Increase the availability of technology and technology transfer to fire management managers and suppression resources.
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Coordinate with State, tribal, and local government partners to leverage
training assets and capabilities. Specifically, the DOI/BLM will seek to deliver training to approximately 2,500 cooperators and increase the utilization of veteran crews.
Report out from States. MAC groups, working with local Federal wildland
fire suppression agencies, tribes, State fire suppression agencies, local
fire departments, RFPAs, and other cooperators.
Report out from States. All units managing priority sage-grouse habitat will
develop and implement a minimum draw-down level and step up plans to
clearly identify those suppression resources necessary in order to maintain an effective, aggressive initial attack capability.
Report out from States. Review and update CAD systems to ensure initial
attack response to priority sage-grouse areas in protection of sagegrouse habitat.
Prepare standardized briefing materials on sagebrush-steppe and sagegrouse wildfire protection for incoming Type 1–3 Incident Management
Teams and other fire management resources.
Report out from States. Update and approve all Fire Prevention Plans,
Wildland Fire Decision Support System data, Fire Danger Operating
Plans, Preparedness Level Plans, and Agreements and Annual Operating
Plans.
Review severity funding policy and update guidance.
Develop annual reporting metrics for effectiveness monitoring of wildland
fire response, with particular emphasis on the effectiveness of measures
to improve success in rangeland fire response, based upon CAD
changes, and reporting of success and/or failure as it pertains to Federal
Plans and FMPs, and effectiveness of enhanced training and capacity
measures.
Increase access to digital maps and mapping software by providing appropriate technology (such as smartphones and tablets) to fire managers
and suppression personnel. Remove barriers for acquisition of appropriate software and hardware.
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Federal Register / Vol. 80, No. 191 / Friday, October 2, 2015 / Proposed Rules
TABLE 12—SECRETARIAL ORDER INITIAL REPORT ACTIONS IMPLEMENTED IN FISCAL YEAR 2015—Continued
[McKnight, BLM, 2015, pers. comm.]
Status
Action item and description
Deliverable
Completed ...
Action Item #10: Improve the description and
awareness of critical resource values threatened
in various stages of the fire response process
including large fire management.
Action Item #11: Ensure compliance and evaluation of the implementation plan action items.
Improve the collection of information about critical resource values threatened, including sage-grouse habitat and populations, on the existing Incident Status Summary (ICS 209) and ensure this information is captured
in the Incident Management Situation Report (SIT Report).
During annual preparedness reviews, review all CAD systems and MAC
plans for compliance with the action plans outlined in Action Items #1
through #4.
Completed ...
Section 7.b.ii. Prioritization and Allocation of Resources
Completed ...
Action Item #1: Communication plan ......................
Completed ...
Action Item #2: Review and update the delegation
of authority for the National Multi-Agency Coordination (NMAC) Group.
Action Item #3: Issue national level ‘‘Leader Intent’’.
Action Item #4: Engage Geographic Multi-Agency
Coordination (GMAC) groups.
Action Item #5: Develop ‘‘Delegation of Authority’’
template for use by local line officers.
Completed ...
Completed ...
Ongoing .......
Completed ...
Action Item #6: Engage line officers to communicate Leaders’ Intent and expectations.
Establish protocols for providing Federal agency leadership with regular
briefings and information on wildfire activity, fire conditions, and significant issues in relation to rangeland fire and the implementation of the
Secretarial Order throughout the 2015 wildfire season in order to provide
leadership with an accurate understanding and insight to the conditions
on the ground. Senior leadership will regularly communicate national strategic priorities and expectations to line officers and fire staffs during the
wildfire season.
Ensure roles and responsibilities.
Provide expectations for 2015.
Communicate Leaders Intent.
Create standard language for use in a Delegation of Authority template that
identifies the sage-steppe ecosystem and protection of species as a priority. Line officers will use this standard template when delegating authority to an Incident Commander who has responsibility for managing a wildfire incident within a FIAT area or has nexus to one. Delivery to Districts.
Each agency use appropriate internal mechanisms to communicate intent
and expectations to regional and unit-level managers.
Section 7.b.v. Post Fire Restoration
Ongoing .......
Ongoing .......
Ongoing .......
Completed ...
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Ongoing .......
Action Item #1: Review and update Emergency Update BAR evaluation and rating criteria and review ES policy and proceStabilization (ES) and Burn Area Rehabilitation
dures.
(BAR) policy guidance to address rating and
evaluation criteria, project design to promote the
likelihood of treatment success, cost containment, monitoring, and continuity and transition
to long-term restoration activities and treatments.
Action Item #2: Address acquisition, financial man- Work with Departmental and bureau acquisition and finance offices to proagement, and other procedures that pose chalvide funding and project continuity at the beginning of, and across, fiscal
lenges to timely project implementation.
years.
Action Item #3: Accelerate schedule approving Accelerate preliminary approvals that will allow sufficient lead time to comBAR projects consistent with the guidelines esplete cultural and other clearances (e.g., NEPA and National Preservation
tablished for the 2015 fire season.
Act of 1966 [Section 106]6), procurement planning, and other advance
work that will take place prior to the application of full funding at the beginning of the fiscal year.
Action Item #4: Identify non-fire programs and ac- Funding of ES and BAR projects will be evaluated based on opportunities
tivities that will fund treatments and restoration
and commitments from non-fire program and activities if the work that is
activities for the long term in conjunction with
proposed will extend beyond the ES and BAR duration.
BAR and ES policy and program review to be
conducted in 2015.
Action Item #5: Identify requirements for National Implementation of new criteria for project evaluation and oversight may reFire Plan Operations and Reporting System
quire updates and changes to NFPORS.
(NFPORS) capabilities.
Section 7.b.ix. Seed Strategy
Completed ...
Completed ...
Completed ...
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Action Item #1: Develop the draft National Seed
Strategy and Implementation Plan.
Action Item #2: Identify a forum to discuss and
highlight current native seed and restoration
techniques and research.
Action Item #3: Provide an opportunity to discuss
current research, case-studies, and tools that inform applied restoration opportunities in the
Great Basin.
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Complete the National Seed Strategy and Implementation Plan.
Attend the Institute for Applied Ecology’s National Native Seed Conference.
A series of 15 webinars on seeding and restoration entitled, ‘‘The Right
Seed in the Right Place at the Right Time: Tools for Sustainable Restoration’’ are offered through May 2015.
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The BLM has longstanding national
and local policies that require
monitoring vegetation treatments (both
implementation and effectiveness
monitoring) and guidance to apply
monitoring data for adaptive
management. These planning policies
require the BLM to set land use goals
and objectives, and to ensure that all
vegetation treatments are responding to
those goals and objectives. The FIAT
process requires partnership with
cooperators, agencies, and others
involved in land or wildlife
management in the FIAT assessment
areas, which helps ensure BLM’s
treatments are benefitting the sagebrush
ecosystem and that proposed treatments
provide direct and indirect benefits to
sage-grouse populations.
The management strategies identified
by the FIAT process are consistent with
broader land use plan direction. Habitat
restoration treatments (e.g., biological,
chemical, seeding, and broadcast
burning) are effective at reducing fine
fuel loads and ultimately decrease fire
spread and area burned. Chemical
applications are effective at removing
nonnative annual grasses and promoting
growth and establishment of native
species. Seeding treatments
implemented by the BLM are effective at
reducing undesirable species and
promote the establishment of desirable
species because they are timed to
achieve a high probability of success.
Conifer removal treatments are
implemented to reduce fuel loading and
effectively reduce fire intensity, fire
spread, and area burned. Wildfire presuppression activities alter vegetation
composition, reducing the negative
impacts from wildfire and invasives.
Projects are planned using fire behavior
analysis tools that consider topography,
weather patterns, fire history, and fuel
conditions to ensure effectiveness.
These treatments ultimately slow fire
spread and reduce fire size and area
burned (DOI 2015e, entire). Fuels
treatment effectiveness monitoring
reports of 722 wildfire/fuels treatment
intersections since 2001 demonstrate
fuels treatment effectiveness within the
BLM (BLM 2015b, p. 1). Of the wildfire/
treatment interactions reported, 85
percent of the treatments helped control
the wildfire, and 90 percent changed the
fire behavior (BLM 2015b, p. 2). The
BLM found that hazardous fuels
treatments reduced the size of many
unplanned ignitions, assisted in
providing opportunities to stop or slow
the spread of wildfire, provided for
greater firefighter safety, allowed
opportunities to manage unplanned
ignitions for resource benefits, reduced
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the burn area rehabilitation needs and
costs, reduced smoke emissions, and
allowed for greater resiliency of the
environment in returning to a functional
ecosystem following wildfire (BLM
2015b, p. 1). The BLM’s post-fire
emergency stabilization and burned area
rehabilitation treatments are planned,
deliberate actions that promote land
stabilization and rehabilitation of
burned landscapes. The BLM is
aggressively treating burned areas where
there is a high probability of cheatgrass
invasion (BLM 2015h). Post-fire
recovery treatments are designed to
promote native vegetation and to inhibit
the establishment of nonnative annual
grasses. Some previous post-fire seeding
restoration attempts were found to be
ineffective, with seeded areas as likely
to have sage-grouse occupancy
compared to non-seeded areas (Arkle et
al. 2014, p. 15). However, post-fire
seeding restoration was more likely to
be successful in higher elevation areas
with particular climate regimes and
when projects were implemented in
years preceding cool, wet growing
seasons (Arkle et al. 2014, p. 15).
Therefore, the FIAT process prioritizes
restoration activities in areas with
higher resiliency and resistance to fire
based on soil and moisture regimes
(Chambers et al. 2014b, p. 453). These
treatments are effective at addressing
the impacts posed by invasive plants
and ultimately address future wildfire
threats.
Once implemented, projects and
treatments identified by FIAT will
follow the same monitoring protocols as
non-FIAT management actions, in
accordance with overarching guidance
in the Federal Plans. Specifically,
monitoring that evaluates the
implementation and effectiveness of
FIAT management strategies will follow
The Greater Sage-Grouse Monitoring
Framework (BLM and USFS 2014,
entire). Given past effectiveness and
ongoing monitoring efforts, the BLM
expects 95 to 99 percent of all habitat
restoration, wildfire pre-suppression,
and conifer removal projects that are
completed or in progress to effectively
ameliorate the impacts of wildfire and
invasive plants to sage-grouse (DOI
2015e, p. 9).
At the time of this writing, the 2015
fire season is under way, and we cannot
currently predict the outcome of the
season in terms of impacts to sagegrouse habitat. Similarly, it is premature
to assess how implementation of the
wildfire and invasive plant conservation
efforts discussed above are working to
address impacts during this fire season.
At the time of publication,
approximately 200,000 ha (500,000 ac)
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59905
of sage-grouse habitat has been
estimated to be affected by wildfires this
year, including approximately 12 ha (30
ac) of SFA. Much of the area burned is
associated with a single wildfire that
occurred along the Idaho and Oregon
border—the Soda Fire. This fire does
provide some insight into the
implementation of the wildfire
conservation measures.
The Soda Fire started on August 10,
2015, burning approximately 114,000 ha
(283,000 ac) of Federal, State, and
private lands in southwestern Idaho and
eastern Oregon (NIFC 2015). Almost all
of the burned area is sage-grouse habitat,
with more than 20,000 ha (about 50,000
ac) designated by BLM as PHMA for the
species. Despite extreme fire behavior,
firefighters safely suppressed this
wildfire with no loss of life and no
serious injuries to firefighters or the
public. An interagency Emergency
Stabilization and Rehabilitation (ES&R)
team of more than 40 natural resource
specialists has completed 5 days
working on the ground to assess damage
and threats to life, property, and
resources on BLM-managed lands in
both Idaho and Oregon. The ES&R team
is now designing treatments to mitigate
threats and begin the rehabilitation of
the burned area (BLM2015h).
Rehabilitation of burned areas on State
and private lands affected by the Soda
Fire is being handled through similar
authorities and processes by Idaho
Department of Lands (IDL) and the
NRCS. Other local, State, and Federal
organizations are participating
throughout the process. A Memorandum
of Understanding (MOU) established in
2014 between BLM, Idaho Department
of Fish and Game, and IDL plays a key
part in authorizing restoration efforts
and processes on State land, particularly
in PHMAs and Important Habitat
Management Areas (IHMAs).
The Soda Fire is one of many
examples of why the Secretary of the
Interior issued Secretarial Order 3336 to
prioritize resources to address the threat
of wildfire in sagebrush habitats for
Federal land managers. We expect that
the actions outlined in the Secretarial
Order and BLMs commitments to
implement other new strategies and
tools identified (BLM 2015h) above will
ultimately prove valuable in reducing
the negative effects of wildfire on sagegrouse habitat. Importantly, the rapid
completion of many of the near-term
action items outlined in the Initial
Report—many of these measures were
in place before the onset of the 2015 fire
season—signal a strong commitment
from wildland fire managers to
implement these measures into the
future.
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Final Report
The ‘‘SO3336—Final Report: An
Integrated Rangeland Fire and
Management Strategy’’ (DOI 2015c,
entire), completed May 1, 2015, outlines
a long-term approach to improving the
efficiency and efficacy of actions to
better prevent and suppress wildfire and
to improve efforts to restore fireimpacted landscapes both including and
beyond 2016. This approach involves
targeted investments to enhance efforts
to manage wildfire in the Great Basin,
based on relative resilience and
resistance of habitat to fire. The Final
Report also outlines longer term actions
to implement the policy and strategy set
forth in the Secretarial Order, including
the continued implementation of
approved actions associated with the
National Cohesive Wildland Fire
Management Strategy (DOI 2014, entire)
that provides guidance for the safe and
effective suppression of wildfires. The
actions outlined in the Final Report
primarily focus on the Great Basin
region, but DOI intends for the strategies
developed under the Final Report to be
applied rangewide where there is
benefit to sagebrush ecosystem habitat
and sage-grouse. Measures outlined in
the Final Report include the following:
• Designing and implementing
comprehensive, integrated fire response
plans for the FIAT assessment areas in the
Great Basin subject to fire and invasives;
• Providing clear direction on the
prioritization and allocation of fire
management resources and assets;
• Expanding the focus on fuels reduction
opportunities and implementation;
• Fully integrating the emerging science of
ecological resilience into design of habitat
management, fuels management, and
restoration projects;
• Reviewing and updating emergency
stabilization and burned area rehabilitation
policies and programs to integrate with longterm restoration activities;
• Committing to multiyear investments for
the restoration of sagebrush ecosystems,
including consistent long-term monitoring
protocols and adaptive management for
restored areas;
• Implementing large-scale experimental
activities to remove cheatgrass and other
invasive annual grasses through various
tools;
• Committing to multiyear investments in
science and research; and
• Developing a comprehensive strategy for
acquisition, storage, and distribution of seeds
and other plant materials.
The Secretarial Order places a priority
on ‘‘protecting, conserving, and
restoring the health of the sagebrushsteppe ecosystem and, in particular,
sage-grouse habitat, while maintaining
safe and efficient operations,’’ and looks
to the allocation of fire resources and
assets associated with wildfire to reflect
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20:48 Oct 01, 2015
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that priority. In preparing the Final
Report, the Task Force considered a
wide variety of possible actions for
conserving habitat for the sage-grouse
and other wildlife species as well as
economic activity, such as ranching and
recreation, associated with the
sagebrush ecosystem in the Great Basin.
The strategy outlined in the Final
Report builds upon the National
Cohesive Wildland Fire Management
Strategy (DOI 2014, entire) and is
intended to ensure improved
coordination with local, State, Tribal,
and regional efforts to address the
potential threat of wildfire at a
landscape level.
In 2015, BLM initiated
implementation of the National Seed
Strategy, a key program included in the
Secretarial Order (BLM 2015c, entire;
BLM 2015h, entire). The ‘‘National Seed
Strategy for Rehabilitation and
Restoration 2015–2020’’ (Seed Strategy)
provides a coordinated approach for
stabilization, rehabilitation, and
restoration treatments. The Seed
Strategy also provides a framework for
actively working with the private sector
in order to build a ‘‘seed industry’’ for
rehabilitation and restoration. This
program was developed specifically in
response to concerns about the wildfire
and invasive plant cycle in the
sagebrush ecosystem, and was identified
in the Secretarial Order. The Seed
Strategy has the following four goals:
1. Identify seed needs, and ensure the
reliable availability of genetically
appropriate seed;
2. Identify research needs and
conduct research to provide genetically
appropriate seed and to improve
technology for native seed production
and ecosystem restoration;
3. Develop tools that enable managers
to make timely, informed seeding
decisions for ecological restoration; and
4. Develop strategies for internal and
external communication.
The Seed Strategy ensures that
adequate supplies of native seed will be
available for sagebrush ecosystem
restoration. The use of locally
appropriate native seed will improve
restoration success, serving as an
important tool in the suppression of
invasive plant infestations after habitat
disturbances, such as wildfire. The
measures in the Seed Strategy are
consistent with COT Report
conservation recommendations for postwildfire restoration (USFWS 2013, p.
40). The initiation of the Seed Strategy
by BLM is evidence of DOI’s
commitments to fully implement the
measures included in the Secretarial
Order and serves as an important tool
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for the minimization of the wildfireinvasive plant cycle across the species’
range (BLM 2015h, entire).
We analyzed the certainty of
implementation and effectiveness of the
Secretarial Order pursuant to PECE (68
FR 15100, March 28, 2003). As noted
above, the purpose of PECE is to ensure
consistent and adequate evaluation of
recently formalized conservation efforts
when making listing decisions. The
policy provides guidance on how to
evaluate conservation efforts that have
not yet been implemented or have not
yet demonstrated effectiveness. The
evaluation focuses on the certainty that
the conservation efforts will be
implemented and the effectiveness of
the conservation efforts to contribute to
make listing a species unnecessary.
The majority of the actions identified
in the Initial Report have been
implemented (BLM 2015h, entire).
Specifically, the following actions have
taken place: Investments targeted to
enhance efforts to manage wildfire in
the Great Basin; a process has been
established for allocating funds to
support policies and strategies for
preventing and suppressing wildfire and
for restoring sagebrush landscapes
impacted by fire across the Great Basin;
and funds were provided this year to
support efforts under the Secretarial
Order (BLM 2015h, entire). The agencies
have the legal authorities to carry out
the responsibilities under the Secretarial
Order and it builds on the BLM and
USFS’ long and successful history of
managing wildfire in the Western
United States. Therefore, we expect that
the efforts will continue to be
implemented to accomplish the
objectives of the Secretarial Order.
The Secretarial Order is expected to
work with FIAT and other authorities to
further help address the effects
associated with wildfire suppression
and restoration and the spread of
invasive species. The Secretarial Order
provides an implementation plan and
specific objectives including short-term
actions for the 2015 fire season and
long-term actions needed to meet the
objectives identified in the order.
Pursuant to the Secretarial Order,
protocols for monitoring vegetation
treatments (both implementation and
effectiveness monitoring) were
established and guidance was
developed to apply monitoring data for
adaptive management (BLM 2105h,
entire).
We expect that the measures will be
effective in reducing the impacts of
wildfire and invasive plants to sagegrouse and its habitats. The COT Report
recommends containing wildfire within
the normal range (including size and
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frequency), eliminating intentional fires,
and restoring burned sagebrush habitats
(USFWS 2013, p. 40). As the COT
Report noted, reduction of the threat of
wildfire is difficult (USFWS 2013, p.
40). However, the Secretarial Order,
FIAT and other authorities and actions
working in concert have provided the
direction needed as described in the
COT Report. Many of the actions
identified in the Initial Report have
already been implemented (BLM 2015h,
entire). The actions yet to be fully
implemented from the Initial and Final
Report have a high level of certainty of
implementation, given BLM’s past track
record of implementation and their
commitments and policy direction for
future implementation(BLM 2015h,
entire). The Secretarial Order and
associated actions, both short and long
term directly address the
recommendations found in the COT
Report, are based on the best available
information, and address the major
issues related to wildfire prevention and
suppression, as well as restoration of
areas impacted by wildfire and invasive
plants. We expect that the Secretarial
Order and associated actions, both
short- and long-term, will be
implemented and will be effective in
reducing the effects to sage-grouse and
its habitat from wildfire and invasive
species sufficient enough be considered
in making our determination.
Resilient Landscapes Funding and
Projects—The Wildland Fire Resilient
Landscapes (WFRL) program is a new
approach to achieve fire resiliency goals
across landscapes with the collaborative
efforts defined in the National Cohesive
Wildland Fire Management Strategy
(DOI 2014, entire), and in support of
Secretarial Order 3336—Rangeland Fire
Prevention, Management, and
Restoration. The WFRL program
provides opportunities for the DOI
bureaus, working together with other
Federal, tribal, State, and local
governmental and nongovernmental
partners, to identify and complete
projects that are intended to contribute
significantly to restoring fire resilience
in a variety of fire-adapted ecosystems
across the country. The Fiscal Year 2015
appropriation provided 10 million
dollars to the Fuels Management
program to fund resilient landscape
activities, as a pilot initiative. Ten
proposals were selected for funding in
2015; three projects, representing 68
percent of the funding, are located
within the range of sage-grouse, and
support the goals of the Secretarial
Order (Table 13). The Fiscal Year 2016
President’s Budget proposes funding for
the WFRL program at 30 million dollars
to provide multiyear support for
landscape-scale projects and expand the
program to new partnerships.
TABLE 13—FISCAL YEAR 2015 WILDLAND FIRE RESILIENT LANDSCAPES PROGRAM PROJECTS FUNDED WITHIN THE
RANGE OF SAGE-GROUSE
Project acres
(millions)
Approved
funding
Collaborative
Location/lead agency
Project objective
Bruneau-Owyhee ..............
Located in Idaho ..............
Lead: BLM .......................
Located in parts of Oregon, Nevada, California.
Lead: Service ...................
Located in Utah ...............
Lead: BLM .......................
Treat conifer encroachment to benefit fire resiliency
and sage-grouse habitat.
Focus on restoring sagebrush shrub and native perennial grass/forb communities by controlling juniper expansion.
>1
$166,000
∼4
3,984,250
Remove encroaching pinyon pine and juniper, diversify age class of sagebrush communities, establish desired understory to restore resilience, benefitting sagebrush-dependent wildlife.
7.4
2,605,000
..........................................
.....................................................................................
>12
6,755,250
Greater Sheldon-Hart
Mountain.
Southern Utah ..................
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Totals .........................
State Fire Management Programs—
Federal, State, and local land and
wildlife management agencies
collaborate and work under national fire
guidance strategies to achieve common
goals and objectives. Within the Great
Basin region, State Forest Action Plans
address the coordinated management of
wildfire. State and local fire
management agencies view all wildfires
as ‘‘full suppression’’ incidents, and
make every effort to suppress fires safely
and quickly with a strong initial attack.
Many States have agreements with their
neighboring States to ensure that a rapid
initial attack is possible, even if it is
from a neighboring State or jurisdiction.
Additionally, they may utilize a
‘‘unified command’’ concept to assist in
coordination and cooperation (Havlina
et al. 2015, p. 26). Specific projects are
detailed in the State Forest Action Plans
to reduce fuels, improve preparedness
and initial attack response, identify
equipment and training needs, and
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ensure safe, rapid, and aggressive
response to wildfire ignitions, and
address rehabilitation of wildfiredamaged lands to mitigate the spread of
invasive plants (Havlina et al. 2015, pp.
25–27). For example, Utah’s Forest
Action Plan (UDFFSL 2015; pp. 33–35)
was updated in 2015 to include five
Sage-grouse Management Areas
(SGMAs) (Box Elder, Bald Hills, Sheep
Rock Mountains, Hamlin Valley, and
Ibapah) as high priorities in the wildfire
risk assessment and as part of the
Governor’s Catastrophic Wildfire
Reduction Strategy. Collectively, these
five SGMAs hold 26 percent of the sagegrouse in the State of Utah (UDFFSL
2015, p. 35).
The Oregon State Plan recognizes
wildfire as one of the most significant
impacts to sage-grouse and their habitat
in Oregon and the Great Basin. The Plan
also recognizes the interrelated nature of
the threat from wildfire with the threats
from nonnative annual grasses and
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juniper encroachment. The Plan
outlines more than 40 conservation
actions to address the impacts from
wildfire, which are defined as any
activity or action which, when
implemented or continued to be
implemented, will reduce potential
threats to sage-grouse and will improve
or maintain healthy sagebrush-steppe
habitat. These conservation actions are
categorized into four areas: Reducing
wildfire risk, wildfire suppression,
building capacity and supporting local
efforts, and post-fire rehabilitation. All
of the conservation actions for wildfire
are predicated on the FIAT as well as
the Secretarial Order, use data specific
to Oregon, and are coordinated with the
goals and objectives of the BLM’s
Federal Plans as well as local
jurisdictions.
Local Fire Management Programs—
Many communities throughout sagegrouse habitat in the Great Basin have
rangeland fire protection associations
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(RFPAs). The RFPAs are remotely
located firefighting units staffed by
public volunteers. The RFPA volunteers
are trained and equipped to respond to
wildland fires with the intent to control
wildfires at the smallest size that can be
safely accomplished. Their location in
remote areas allows firefighters to access
fires quickly, which increases success of
controlling fires before they grow in
size, become more challenging to
suppress, and cause greater effects to
sage-grouse. In Oregon, 18 RFPAs have
been created and currently field more
than 600 volunteer fire fighters and
more than 200 pieces of water-handling
fire equipment to protect more than 2
million ha (5 million ac) from wildfire.
In southern Idaho, there are currently
seven RFPAs with 230 trained members
who support wildland firefighters to
protect more than 1.4 million ha (3.5
million ac) of the sagebrush ecosystem
from catastrophic wildfire. On June 23,
2015, Governor Brian Sandoval signed
emergency regulations related to the
formation of RFPAs within the State of
Nevada (NRS 472 per AB 163, sec. 3.5(1)
of the 78th Session of the Nevada
legislature).
Wildfire and Invasive Plants Summary
In 2010, we concluded that wildfire
was one of the primary factors linked to
declines of sage-grouse due to long-term
loss of sagebrush and conversion of
sagebrush habitats to invasive annual
grasses. Loss of sagebrush habitat to
wildfire had been increasing in the
western portion of the sage-grouse range
mainly due to an increase in wildfire
occurrence, intensity, and severity
(Miller et al. 2011, p. 183). We found
this change to be the result of incursion
of nonnative annual grasses, primarily
cheatgrass. The positive feedback loop
between cheatgrass and wildfire
facilitates future fires and precludes the
opportunity for sagebrush, which is
killed by fire, to become reestablished.
Cheatgrass and other invasive plants
also alter habitat suitability for sagegrouse by reducing or eliminating native
forbs and grasses essential for food and
cover.
While the manner in which wildfire
and invasive plants affect sage-grouse
has not changed since the 2010 finding,
there has been a significant change in
the approach to rangeland firefighting
and fuels management to address these
potential threats. Through development
of the FIAT, as well as the Secretarial
Order, the BLM and USFS have
developed and implemented wildfire
management strategies and actions
intended to reduce the impact of
wildfire and invasive plants (BLM
2015h, entire). Similarly, a paradigm
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shift is occurring in the way land
managers and the larger conservation
community approach invasive plant
control and in particular the
relationship between invasive plants
and wildfire.
Without management, current burn
rates would likely continue, potentially
impacting another 17 to 25 percent of
the species’ range within the Great
Basin over the next 20 to 30 years. If this
level of wildfire did occur, sage-grouse
populations in the Great Basin could
decline 43 percent over the next 30
years (Coates et al. 2015, p. 32), and
some small populations could be
extirpated. However, we expect that the
rates of wildfire and invasive plant
habitat loss seen over the past decades
will be reduced by conservation efforts.
The FIAT assessments that are included
in the Federal Plans and the actions
implemented under the Secretarial
Order provide enhanced policies,
strategies, and tools for preventing and
suppressing wildfire and for restoring
landscapes affected by fire across the
Great Basin region. Many of those
measures are in place for the current fire
season (DOI 2015a). As a result,
sagebrush habitats will now be given
priority consideration in the treatment
of fuels, the deployment of firefighting
resources, and the rehabilitation of
burned areas. Much of that effort will be
focused in those areas most resistant to
wildfire and invasive plants, where
more than half the breeding habitat in
the Great Basin occurs and where
prevention and restoration projects are
most likely to be successful; this
strategy is consistent with
recommendations provided in the COT
report (USFWS 2013, pp. 40–42) and a
recent study of wildfire impacts over the
next 30 years (Coates et al. 2015, p. 34).
Further, if wildfires do occur,
monitoring of sage-grouse habitat and
population responses to that impact will
occur so that other land use activities
can be adjusted, if necessary. In
response to monitoring, development
allowable under the Federal Plans may
be adjusted based on adaptive
management criteria to provide an
immediate, corrective response to any
identified triggers for population or
habitat declines. While not directly
related to habitat losses due to fire,
these provisions provide a backstop for
other disturbance if adaptive
management triggers are exceeded. The
continued long-term implementation of
these wildfire management strategies, in
coordination with the Federal Plans and
Oregon State Plan (see Sagebrush
Landscape Conservation Planning for
additional details) reduce the risk, or
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the degree to which, fire and invasive
plants are likely to impact sage-grouse.
We expect that the current management
emphasis will reduce future losses.
Grazing and Rangeland Management
In 2010, we evaluated the effect of
grazing on sage-grouse (including
domestic livestock, free-roaming equids,
and wild ungulates) and concluded that
improper grazing was likely having
negative impacts to sagebrush and sagegrouse at local scales, but that
population-level impacts were
unknown. However, given the
widespread nature of grazing, the
potential for population-level impacts
could not be ignored (75 FR 13910,
March 23, 2010, p. 13942). In this
section we evaluate the best available
information on the impacts of livestock
grazing on sage-grouse and on
conservation actions since 2010
intended to ameliorate those impacts.
We have no new information regarding
impacts of native ungulates on sagegrouse populations, which were not
considered a substantive threat in 2010;
therefore, our analysis focuses
exclusively on domestic livestock
grazing. The impacts on the species and
its habitat of free-roaming equid grazing
are addressed in a separate section of
this document (see Free-Roaming
Equids).
Improper grazing by domestic
livestock during the late 1800s and early
1900s, along with severe drought,
affected sagebrush ecosystems across
the range of sage-grouse (Knick et al.
2003, p. 616). Improper grazing, for the
purposes of this assessment, is defined
as grazing practices that are inconsistent
with local ecological conditions and
result in degradation of habitat for local
wildlife species. This historical
improper grazing caused long-term
changes in plant communities and soils
(Knick et al. 2003, p. 611). In lowelevation Wyoming big sagebrush and
low sagebrush habitat, improper grazing
reduced perennial herbaceous
vegetation and caused high levels of
ground disturbance, which promoted
the establishment of exotic annual grass
species such as cheatgrass (Mack 1981,
pp. 148–152). In higher elevation
mountain big sagebrush habitat,
improper grazing likely reduced fine
fuels and decreased fire frequency,
resulting in the expansion of firesensitive native conifers (Miller and
Tausch 2001, pp. 19–26). In both
instances, these shifts in the vegetative
community have facilitated changes in
the wildfire cycle, leading to loss of
sage-grouse habitat (see Wildfire and
Invasive Plants, above).
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Livestock grazing is currently the
most widespread land use in the
sagebrush ecosystem and occurs in all
MZs (Knick et al. 2011, p. 219; Boyd et
al. 2014, p. 62). Livestock grazing may
positively or negatively affect the
structure and composition of sagegrouse habitat (Factor A), depending on
the intensity and timing of grazing and
local climatic and ecological conditions
(Crawford et al. 2004, pp. 10–12;
Aldridge et al. 2008, p. 990; Boyd et al.
2014, p. 63). As a result, drawing broad
inferences regarding the current impact
of grazing on sagebrush habitats across
the range of sage-grouse is difficult.
The total number of livestock that
currently graze within sage-grouse
habitats is unknown. No rangewide data
set is available describing the level of
livestock grazing that occurs on private
lands across the occupied range. Most
grazing on Federal lands is managed by
BLM and USFS (GAO 2005, p. 5). The
BLM and USFS index the number of
livestock grazed by Animal Unit Months
(AUMs), which takes into account both
the number of livestock and the amount
of time they spend on public lands. An
AUM is defined by BLM as the amount
of forage needed to sustain one cow and
her calf, one horse, or five sheep or
goats for 1 month. The number of AUMs
allowed depends upon land health
assessments that evaluate the ecological
condition of an area and its ability to
support grazing (BLM and USFS 2015,
entire). The number of AUMs permitted
on Federal lands has gradually declined
since the 1960s (Mitchell 2000, pp. 64–
68). This decline was concurrent with a
decline in productivity of western
shrublands due to previous grazing
history, changes in soils and vegetation,
or drought (Knick et al. 2011, p. 232).
The reduction in AUMs permitted on
public lands over time may not translate
to a reduction in the effects of grazing
in sagebrush systems (Knick et al. 2011,
p. 232).
Properly managed grazing may benefit
sage-grouse. Light to moderate livestock
grazing can help maintain perennial
vegetation that provides important food
and cover for sage-grouse (Crawford et
al. 2004, pp. 2–12; Boyd et al. 2014, p.
63). It can also help control invasives
and woody plant encroachment, which
may improve habitats and may reduce
wildfire risk (Connelly et al. 2004, p. 7–
49; Boyd et al. 2014, p. 68). The net
impact of different use levels will vary
in accordance with climatic variability,
local environment, and season of use
(Crawford et al. 2004, pp. 10–12).
Implementing proper grazing practices
that maintain adequate residual grass
height and cover under shrubs provides
for suitable cover and minimizes the
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negative effects of grazing on sagegrouse productivity (Boyd et al. 2014, p.
64).
Alternatively, improperly managed
grazing can have adverse impacts to
sage-grouse habitat. Improper grazing
directly influences the composition,
productivity, and structure of
herbaceous plants in sagebrush plant
communities (Boyd et al. 2014, p. 64),
which in turn influences the quality and
quantity of food and cover for sagegrouse (Fleischner 1994, pp. 633–635).
By reducing protective vegetative cover,
improper grazing may make nesting and
brood-rearing habitats less suitable for
sage-grouse. Sage-grouse rely on the
cover of tall grasses and shrubs to hide
from predators, especially during the
nesting season, and females will
preferentially choose nesting sites based
on the height of grasses and shrubs
(Hagen et al. 2007, p. 46). Grass height
is a strong predictor of nest survival and
hiding cover can increase nest success,
a key vital rate for sage-grouse (Doherty
et al. 2014, pp. 322–323). Loss of this
hiding cover may increase predation
during nesting and brood-rearing,
subsequently reducing reproductive
success rates (Gregg et al. 1994, p. 165).
Maintaining adequate residual grass
height and cover under shrubs
minimized the negative effect of grazing
on sage-grouse productivity (Boyd et al.
2014, p. 64).
Improper livestock grazing can reduce
food available to sage-grouse, which can
impact reproductive success and chick
survival (Coggins 1998, p. 30; Aldridge
and Brigham 2003, p. 30; Pederson et al.
2003, p. 43). Improper livestock grazing
in mesic, brood-rearing habitat may
further reduce food resources by altering
soils and hydrology and reducing
herbaceous plants (Braun 1998, p. 147;
Dobkin et al. 1998, p. 213). Improper
livestock grazing may also reduce the
cover and height of sagebrush in key
wintering habitats (Rasmussen and
Griner 1938, p. 852), potentially
affecting the condition and survival of
sage-grouse during the winter when
resources are scarce. However,
implementing appropriate grazing
practices can maintain habitat and food
resources for sage-grouse or, under very
specific conditions, improve conditions
by stimulating succulent forb growth
(Evans 1986, p. 67; Crawford et al. 2004,
p. 12; Beck and Mitchell 2000, p. 997).
Beyond habitat impacts, improper
grazing can also directly affect sagegrouse (Factor E). Nearby livestock can
cause females to flush from their nests
(Coates et al. 2008, p. 426),
inadvertently revealing the nest and its
eggs to predators, such as ravens
(Corvus corax) (Coates 2007, p. 33) and
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the abundance of raven predators in
sage-grouse habitats may increase near
livestock grazing (Coates et al., in press).
Livestock can trample or disturb nests
(Crawford et al. 2004, p. 12). However,
no information is available about the
extent these potential impacts may be
occurring across the occupied range.
When they do occur, adverse impacts
are likely limited to the local
population.
Construction and development
associated with grazing, such as
watering developments and fences, can
have a variety of impacts such as habitat
fragmentation and the facilitation of
predators and disease. There have been
documented incidences of sage-grouse
drowning in stock tanks, which can
have localized population-level effects
(Boyd et al. 2014, p. 65), but the
rangewide impact is unknown. Grazing
management that strategically considers
placement and design of fences and
livestock water developments could
protect other habitats by localizing and
minimizing the area of impact. In
addition, the timing of water diversions
can minimize these impacts and provide
mesic vegetation and wet meadow
habitats during critical brood-rearing
periods when the availability of
succulent plants may be limited (Boyd
et al. 2014, pp. 65–66).
Conservation Efforts
Since 2010, State and Federal
agencies have worked collaboratively to
develop regulatory mechanisms to
reduce or eliminate the impact of
improper livestock grazing on sagegrouse habitats. The BLM and USFS
amended or revised Federal Plans to set
appropriate rangeland health standards
in sage-grouse habitats that are required
to maintain a Federal grazing permit.
States developed and implemented
State plans that govern issuance of
grazing permits on some State lands.
Other conservation efforts designed to
improve grazing, including voluntary
efforts, are discussed below.
Federal Plans—The BLM and USFS
are currently the principle land
managers within the range of the sagegrouse, and collectively manage more
than 98 percent of the livestock grazing
on Federal lands (GAO 2005, p. 5).
Nearly all federally owned sage-grouse
habitat is managed for livestock grazing
(BLM and USFS 2015, entire). Grazing
permits and leases generally cover a 10year period and are renewable if the
BLM or USFS determine that the terms
and conditions of the expiring permit or
lease are being met (BLM and USFS
2015, entire). Permits include standards
and guidelines that describe specific
conditions required to achieve land
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health and the recommended
techniques to achieve these standards
on each allotment (Knick et al. 2011, p.
222; BLM and USFS 2015, entire), as
well as mandatory terms and conditions
to ensure that land health standards
(LHS) are being met (43 CFR 4130). If
LHS are not being met or terms and
conditions are not being followed, the
BLM and USFS have the authority to
modify the terms and conditions of
grazing permits to correct any
deficiencies, suspend the permit, or to
revoke the grazing permit entirely (33
CFR 222.4; 43 CFR 4180.2).
In our 2010 finding, we identified
concerns with BLM and USFS
management of rangelands, contributing
to our finding that regulatory
mechanisms were not sufficient (75 FR
13910, March 23, 2010, pp. 13975–
13980). Historically, not all allotments
have been monitored to ensure
compliance with LHS and permit terms
and conditions, and there was no
mandated prioritization of field checks
to ensure compliance within sagegrouse habitats. Between 1997 and 2007
the percent of allotments monitored for
LHS ranged from 22 percent to 95
percent across surveyed States, with an
overall average of 57 percent (Veblen et
al. 2014, p. 72). Of the allotments
monitored, 15 percent failed to meet
LHS due to improper livestock grazing
(Veblen et al. 2014, p. 72).
The Federal Plans represent a major
shift in grazing management and
monitoring since 2010, with respect to
meeting LHS and sage-grouse
conservation objectives (BLM and USFS
2015, entire). The Federal Plans manage
grazing specifically for sage-grouse
habitat objectives by evaluating the
numbers and distribution of livestock,
evaluating environmental conditions
such as drought, closing or changing
allotments, managing riparian habitat
for sage-grouse, and authorizing water
developments only if they would not
adversely impact sage-grouse. Specific
grazing guidelines have been developed
based on the best available science and
are applied in upland and riparian/wet
meadow habitats to maintain or achieve
desired conditions of sagebrush, forbs,
and perennial grasses. Upland
vegetation guidelines will be applied
seasonally and within 4 to 6.2 miles
from leks, depending on site-specific
information. Riparian and wetland
protective measures will be applied in
all sage-grouse habitat areas. Further,
BLM directed resources in 2015 to fund
monitoring crews, and funded activities,
like data management, to ensure
successful implementation of the
monitoring commitments (Lueders,
BLM, 2015, pers. comm.). The
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President’s Budget request for BLM
included 8 million dollars to directly
support monitoring the implementation
and effectiveness of the land use plans
(BLM 2015d, p. II–5–6).
Given the large number of allotments
across the occupied range, the Federal
Plans ensure that the most important
habitats are prioritized for protection.
Permit review, renewal, and/or
modifications occur first in SFAs,
followed by PHMA and allotments
containing riparian areas. The same
prioritization is used for field checks to
ensure compliance with permit terms
and conditions. In addition, the USFS
commits to modify grazing permit
conditions and existing livestock
improvements within 2 years and
mitigate any adverse effects from
grazing improvements within 5 years
(BLM and USFS 2015, entire). Progress
at achieving rangeland health objectives
at multiple spatial scales is monitored
by BLM and USFS using a habitat
assessment framework that provides a
consistent approach and similar data set
(BLM and USFS 2015, entire).
The Federal Plans’ vegetation
standards and grazing management
measures are consistent with the best
available science on sage-grouse habitat
needs and the COT report
recommendations to minimize grazing
impacts (USFWS 2013). The Federal
Plans also include monitoring
requirements and adaptive management
that will ensure that the measures will
be effective for the long term and that
grazing occurs at proper levels for sagegrouse conservation. With changes in
management direction and immediate
allocation of resources, full
implementation of the Federal Plans
will, over time, address effects due to
improver grazing. As a result of the
Federal Plans, and associated
monitoring commitments and adaptive
management approach, the risk of
improper grazing occurring on Federal
lands across the occupied range is
greatly reduced from 2010 levels.
State Plans—State plans in Montana
and Wyoming include measures to
reduce the impact of improper grazing
to sage-grouse on State-owned or
managed lands. Montana’s State plan
requires that State Trust grazing lands
maintain and improve sage-grouse
habitat in core and connectivity areas on
State Trust lands in Montana (Montana
EO 10–2014, pp. 7–17). In addition,
Montana’s plan includes voluntary
incentives to conserve sagebrush
habitats on private and State-owned
lands in core and general habitat areas
(Montana EO 10–2014, pp. 7–27). Under
the Wyoming Plan, in order to receive
a permit, new grazing operations on
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State Trust Lands must demonstrate that
they will not cause declines in sagegrouse populations. While the amount
of grazing on lands subject to these State
requirements and incentives is minimal
compared to that on Federal lands, these
measures will reduce the potential for
improper grazing that could negatively
affect sage-grouse.
Sage Grouse Initiative—Rangeland
health inside PACs has been improved
through SGI practices by applying
grazing systems, re-vegetating former
rangeland with sagebrush and perennial
grasses, and controlling invasives. To
date, grazing systems have been
implemented on more than 985,000 ha
(2.4 million ac); seeding projects have
occurred on more than 19,000 ha (over
48,000 ac); and weed management
projects were implemented on more
than 6,000 ha (over 15,509 ac), and
restoring more than 70 ha (179 ac) of
wet meadow (NRCS 2015a, p. 6). To
maximize conservation gain, SGI targets
their efforts within PACs. Of the more
than 985,000 hectares (2.4 million acres)
enrolled in grazing systems, 76 percent
are clustered within the following five
populations: Powder River Basin,
Yellowstone Watershed, and the
Dakotas in MZ I; Wyoming Basin in MZ
II; and Snake/Salmon/Beaverhead in
MZ IV (NRCS 2015a, p. 7). In addition
more than 74 percent of the newly
seeded acres are concentrated in the
following five populations: Dakotas, and
Yellowstone Watershed in MZ I;
Northwest Colorado in MZ II; and
Northern Great Basin and Box Elder in
MZ IV (NRCS 2015a, p. 7). Although
participation in SGI programs is
voluntary, participants that receive
financial assistance enter into binding
contracts or easements to ensure that
conservation practices are applied
according to schedule and in
compliance with NRCS standards and
specifications. As part of
implementation, the SGI includes a
monitoring and evaluation component
that measures the response of sagegrouse populations and associated vital
rates in order to gauge effectiveness and
provide an adaptive management
framework to SGI programs. For the
private lands involved with this
program, SGI has removed the risk of
habitat degradation due to improper
grazing through the implementation of
accepted habitat management tools, and
restored previously affected habitat to
benefit sage-grouse.
Candidate Conservation
Agreements—Lands currently enrolled
in CCAAs reduce the potential threat of
improper grazing on private lands
through implementation of grazing
management plans that we have
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determined maintain or enhance habitat
for sage-grouse. Approved grazing
management plans include measures
concerning the types of livestock and
the appropriate timing, location,
duration, and frequency for grazing. All
private lands within the species’ range
in Oregon and Wyoming are eligible for
enrollment in CCAAs. Rangewide,
approximately 745,000 ha (1.8 million
ac) of private lands have landowner
commitments in the programmatic
CCAAs in Oregon and Wyoming. In
addition, approximately 1.4 million ha
(about 3.5 million ac) are covered by
CCAs covering range management on
BLM-administered lands in Oregon and
Wyoming, and covering maintenance
operations on DOE lands in Idaho (BLM
2013a). The CCAs require the same
conservation measures as the CCAAs,
including grazing management plans
and habitat enhancement. These CCAAs
and CCAs are consistent with the
recommendations of the COT Report
(USFWS 2013, p. 45) for conservation
measures that will effectively reduce
impacts to sage-grouse.
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Grazing and Rangeland Management
Summary
Livestock grazing is the most
widespread land use in the sagebrush
ecosystem, and impacts can be positive,
negative, or neutral depending on
management practices and site-specific
characteristics. Improper grazing
practices can have adverse effects to
sage-grouse and its habitat, and may
work synergistically with other
potential threats, such as invasive plants
and wildfire, to increase impacts.
However, well-managed grazing
practices can be compatible with
sagebrush ecosystems and sage-grouse
persistence. In 2010, we concluded that
grazing was likely having localized
negative effects, but due to the
widespread extent of the activity,
greater impacts were possible. Since our
2010 finding, updated Federal Plans
have been amended or revised in the
species’ range to ensure that appropriate
grazing prescriptions are applied on
Federal lands, covering more than half
of the range of sage-grouse. As discussed
in the Federal Plans section above,
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monitoring and adaptive management
provisions within the Plans contribute
to the certainty that livestock grazing
will be permitted at levels compatible
with sage-grouse persistence. Further,
prioritization of field checks and permit
reviews provides additional assurances
that these regulatory mechanisms will
be effective in those areas with the
highest breeding bird densities.
Rangewide, the Federal Plans, along
with the Wyoming, Montana, and
Oregon State Plans, reduce impacts from
grazing to approximately 90 percent of
the modeled breeding habitat across the
species’ range (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness). In addition to these
regulatory mechanisms on Federal
lands, SGI and State CCAAs provide
well-coordinated programs to encourage
private landowners to address the
impact of improper grazing on nonFederal lands. Taken together, these
conservation efforts reduce the potential
threat of improper livestock grazing
from the levels assessed in 2010.
Therefore, we conclude that, although
livestock grazing is widespread in the
sagebrush ecosystem, and we expect
some continued impacts from improper
grazing at local scales, existing Federal
regulations with full implementation, in
combination with voluntary efforts on
non-Federal rangelands are reducing the
prevalence of improper grazing and its
impacts to sage-grouse.
Free-Roaming Equids
In 2010, we evaluated the effect of
free-roaming equids (also known as freeroaming horses and burros) on sagegrouse and concluded that grazing
(including grazing by free-roaming
equids, native ungulates, and livestock)
can have negative impacts to sagebrush
(Factor A) and consequently to sagegrouse at local scales. Further, we
concluded that the impacts of grazing at
large spatial scales, and thus on
population-levels, was unknown, but
given the widespread nature of grazing,
the potential for population-level
impacts could not be ignored (75 FR
13910, March 23, 2010, p. 13942).
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Free-roaming horses (Eques cabalas)
and burros (E. sinus) were first brought
to western North America in the late
16th century. A number of equids
subsequently escaped captivity or were
released forming free-roaming
populations (Beever 2003, p. 888;
Garrott and Oli 2013, p. 847). When the
BLM began monitoring free-roaming
equid populations in the 1970s, they
reported the total number of freeroaming horses to be approximately
17,000 individuals, although some
believe this was an underestimate (BLM
2005a, p. 3). With protection afforded by
the Wild Free Roaming Horse and Burro
Act of 1971 (Pub. L. 92–195) (Horse and
Burro Act), the number of horses on
public lands rose sharply, and by 1980
the number of free-roaming equids had
increased to 65,000–80,000 animals
(Beever 2003, p. 888, BLM 2005a, p. 3).
Active management, starting in the
1980s, reduced free-roaming equid
numbers to more than 40,000 by 1999
and to about 37,186 in 2003 (BLM
2005a, p. 3).
The BLM and USFS manage freeroaming equids on Federal lands
according to the Wild Free-Roaming
Horses and Burros Act of 1971. The
BLM’s implementing regulations
designated Herd Areas as places used as
habitat by a herd of free-roaming equids
at the time the law was passed (43 CFR
part 4700). The BLM evaluated each
Herd Area to determine if it had
adequate food, water, cover, and space
to sustain healthy and diverse freeroaming equid populations over the
long term. The areas that met those
criteria were designated as Herd
Management Areas (HMAs). The BLM
manages HMAs to maintain the
appropriate management level (AML) of
free-roaming equids to be in balance
with other public rangeland species,
resources, and uses in a given area. The
USFS has designated Territories for the
management of free-roaming equids and
manages them in a similar way. The
HMA/Territories currently overlap with
about 12 percent of the sage-grouse
occupied range, primarily in Oregon,
Nevada, and Wyoming (Figure 8).
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In 2010, the BLM estimated that
31,000 free-roaming equids were found
on BLM-administered lands (75 FR
13910, March 23, 2010, p. 13941).
Currently, the BLM estimates 58,150
free-roaming equids (about 47,329
horses and 10,821 burros) exist on BLMadministered rangelands in 10 western
States, including two States outside the
range of the sage-grouse (BLM 2015e). In
2014, USFS estimated that, on lands it
manages, there are an additional 7,447
free-roaming equids (Shepherd & Frolli
2015, BLM and USFS, pers. comm.).
The number of free-roaming equids on
public lands has been over AML for
more than 15 years (BLM 2014c, p. 1).
The extent to which free-roaming equids
occur on land outside of designated
Federal management areas is unknown.
The current population of freeroaming equids is estimated to be nearly
double the amount that the BLM and
USFS have determined can exist in
balance with other public land
resources and uses (BLM 2015e, p. 1).
Free-roaming equids reproduce rapidly
and can have rates of increase averaging
15 to 20 percent annually (BLM 2015e,
p. 1). Assuming a population of 45,000
animals and a 20 percent annual growth
rate, Garrott et al. (1991, p. 647)
estimated that 9,000 horses must be
removed annually to maintain a stable
population. The number of horse and
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burro removals by BLM have not kept
this pace in recent years, with removals
declining from 8,255 in 2012, to 4,176
in 2013, to 1,863 in 2014 (BLM 2015e,
entire). At the same time, numbers of
horses and burros in BLM corrals and
pastures is close to capacity (BLM
2015e, entire).
Free-roaming equids’ use of sagebrush
landscapes have different ecological
consequences than livestock grazing at
both local and landscape scales due to
biological and behavioral differences
(Beever 2003, pp. 888–890; Beever and
Aldridge 2011, p. 273). Equids are
generalists, but grasses comprise the
majority of their diet throughout the
year (McInnis and Vavra 1987, p. 61).
Because of physiological differences, a
horse forages longer and consumes 20 to
65 percent more forage than a cow of
equivalent body mass (Wagner 1983, p.
121; Menard et al. 2002, p. 127). Unlike
domestic cattle and other wild
ungulates, equids can crop vegetation
closer to the ground, potentially limiting
or delaying recovery of plants (Menard
et al. 2002, p. 127). Equids tend to move
to higher elevations in late spring until
early fall, which may increase the
interactions with sage-grouse, as sagegrouse often move to higher elevation
communities to more mesic habitats
with forbs throughout the summer
(Beever and Aldridge 2011, pp. 285–
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286). Conversely, equids tend to spend
less time at water, and range farther
from water sources than cattle (Beever
and Aldridge 2011, p. 286). Because of
these differences, greater habitat
impacts occur when both horses and
cattle are present, compared to when
only cattle are present (Beever and
Aldridge 2011, p. 286).
As with all herbivores, equid effects
on ecosystems vary markedly with
elevation, density, season, and duration
of use (Beever and Aldridge 2011, p.
273). In some contexts, equid grazing
can reduce shrub cover as equids
trample, rub against, and consume
shrubs (Plumb et al. 1984, p. 132;
Beever et al. 2003, pp. 119–120; Beever
et al. 2008, p. 180). Equid grazing has
also been associated with reduced plant
diversity, altered soil characteristics,
lower grass cover, lower grass density,
and 1.6 to 2.6 times greater abundance
of cheatgrass (Beever et al. 2008, pp.
180–181). Sage-grouse need grass- and
shrub-cover for protection from
predators, particularly during nesting
season (Connelly et al. 2000a, pp. 970–
971). Reduction in shrub and grass
cover can result in increased predation
pressure on both nests and birds. The
greatest risk of adverse effects to habitat
occurs in the areas with large numbers
of horses over AML; the area of greatest
concern is Nevada (MZs III, IV, and V)
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where free-roaming equid populations
are estimated to be more than twice
AML.
In addition to adverse effects in
sagebrush habitats, free-roaming equids
can also negatively affect important
meadow and brood-rearing habitats that
provide forbs and insects for chick
survival (Beever and Aldridge 2011, p.
277; Crawford et al. 2004, p. 11;
Connelly et al. 2004, p. 7–37), as
streams and springs within sagebrush
ecosystems receive heavy use by horses
(Crane et al. 1997, p. 380; Beever and
Brussard 2000, pp. 243, 246–247).
Brood-rearing habitat is often limited in
availability compared to other sagegrouse habitats; therefore, any impacts
to these areas can adversely affect local
populations (NRCS 2015a, p. 44).
Conservation Efforts
Wild Free-Roaming Horses and Burros
Act of 1971—The Wild Free-Roaming
Horses and Burros Act of 1971, as
amended, charges the BLM and USFS
with managing wild [free-roaming]
equids to achieve a thriving ecological
balance with the land (Pub. L. 92–195).
The BLM and USFS manage freeroaming equids by conducting surveys,
administering fertility control drugs,
gathering excess horses, and facilitating
adoptions (National Academy of
Sciences 2013, pp. 55–73). The BLM
plans gathers based on population
estimates and vegetation monitoring,
but takes into account issues such as
areas where equids have moved onto
private property or severe local
conditions are affecting the health of the
herd. The scheduled gathers may be
influenced by court orders or emergency
situations. Planned gather numbers are
based on the available space in holding
facilities, anticipated adoptions, and
budgets (BLM 2015e, p. 1).
Management of herd size by Federal
agencies is an ongoing challenge. Freeroaming equid populations grow
rapidly, and in most areas, they have no
natural predators (National Academy of
Sciences 2013, p. 1). The Wild FreeRoaming Horses and Burros Act (Pub. L.
92–195) requires that free-roaming
equid populations be managed at
appropriate management levels, and
allows for the removal of excess animals
for adoption, sale, or destruction. Freeroaming equid management is
expensive and often controversial,
sometimes limiting options to manage
free-roaming equids at appropriate
levels (National Academy of Sciences
2013, pp. 1–2).
Federal Plans—The Federal Plans
address the impacts of free-roaming
equids by prioritizing management in
areas most important for sage-grouse
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conservation (BLM and USFS 2015
entire). Management actions are
prioritized for SFAs and PHMAs, and
are managed for AML. Rangeland health
assessments will be conducted in
PHMAs and SFAs, and herd
management area plans (HMAPs) will
be amended to incorporate sage-grouse
habitat objectives. The plans provide
that, if needed to achieve AML and
sage-grouse habitat objectives, gathers
and population growth suppression
techniques would be utilized in
prioritized areas. Additionally, if
needed, free-roaming equids would be
removed or excluded from areas
following emergencies, such as wildfire
or drought. Further, monitoring and
adaptive management criteria provide
an additional layer of management to
address species or habitat declines
regardless of the sources of the impact.
The BLM has committed to completing
the actions within SFAs in the next 5
years; free-roaming equid management
in PHMAs will be the next priority after
SFAs (BLM 2015h, entire; DOI 2015a, p.
3).
The Federal Plans’ direction to
manage free-roaming equid populations
at appropriate levels reduces impacts
from free-roaming equids into the
future. The inclusion of sage-grouse
objectives in HMAPs ensures that future
decision making is done with
consideration of sage-grouse ecological
needs. Managing SFAs and PHMAs at
AML substantially reduces the potential
for habitat degradation in those areas.
Based on past BLM and USFS plans and
planning efforts, we expect the Federal
Plans, including these free-roaming
equid measures to be implemented for
the next 20 to 30 years.
Sheldon-Hart Mountain National
Wildlife Refuge Complex—The Hart
Mountain National Wildlife Refuge
(NWR) removed free-roaming equids
and cattle in the 1990s. Cattle were also
removed from the Sheldon NWR in the
1990s. The last gather to remove all
equids from Sheldon NWR occurred in
the fall of 2014 (Collins, USFWS, pers.
comm. 2015). Recovery of plant
communities in sagebrush ecosystems,
aspen woodlands, and riparian habitats
have been documented since these
removals (Earnst et al. 2012, entire;
Davies et al. 2014, entire; Batchelor et
al. 2015, entire). Together, free-roaming
equid and livestock removals from
Sheldon-Hart Mountain NWR have
improved conditions for 9.1 percent of
the sage-grouse modeled breeding
habitat in MZ V. This area has been
identified as important to long-term
sage-grouse viability due to the high
density of breeding birds and the
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59913
connectivity to adjacent populations
(USFWS 2014a, entire).
Candidate Conservation
Agreements—CCAAs and CCAs, which
together can cover up to about 1.4
million ha (3.5 million ac) in Oregon,
include conservation measures for freeroaming equids. To date, approximately
745,000 ha (1.8 million ac) are currently
enrolled in CCAAs rangewide. Measures
include monitoring of free-roaming
equid impacts in sage-grouse habitat
and reporting to BLM for consideration
of horse and burrow relocation (USFWS
2014d, p. 52; USFWS 2015b, p. 55;
USFWS 2015c, p. 53; USFWS 2015d, p.
54; USFWS 2015e, p. 53; USFWS 2015f,
p. 54). Although not regulatory in
nature, these measures will assist BLM
in their management of free-roaming
equids.
Free-Roaming Equid Summary
In our 2010 finding, we reported that
approximately 36,000 free-roaming
equids occurred in 10 western States
(including 2 States outside the range of
sage-grouse) and HMAs/Territories
occupied approximately 12 percent of
the range of sage-grouse. The number of
free-roaming equids has increased since
2010, with about half occurring in
Nevada where estimated free-roaming
equid population levels are twice AML.
Since our 2010 finding, the Federal
Plans provide a suite of actions that,
with full implementation, will manage
free-roaming equids to substantially
reduce potential impacts to sage-grouse,
as recommended by the COT Report
(USFWS 2013, pp. 46–47). Some
localized degradation of habitat will
likely continue, particularly in Nevada,
as implementation of these actions will
take time. However, full implementation
of the measures outlined in the Federal
Plans will reduce impacts in the most
important areas for sage-grouse (see
Sagebrush Landscape Conservation
Planning for a detailed discussion of
conservation measure implementation
and effectiveness). Important habitats
that are designated as SFAs will receive
priority management to reduce wildequid population levels that can exist in
the sagebrush ecosystem without
adverse effects to sage-grouse habitats
(BLM 2015h, entire). In addition,
conservation efforts directed at these
issues have been implemented on other
lands since 2010, most notably the
removal of horses from Sheldon NWR in
2014, which provides habitat for an
important breeding bird stronghold. As
a result, while some localized impacts
to habitat are likely to continue in the
near future, management measures by
the BLM and USFS substantially reduce
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the impact of free-roaming horses and
burros across the range of the species.
Conifer Encroachment
In 2010, we evaluated the effect of
pinyon juniper encroachment and
concluded that it contributed to habitat
fragmentation, particularly in the Great
Basin portion of the range. Pinyon and
juniper and some other native conifers
were expanding due to decreased firereturn intervals, livestock grazing, and
increases in global carbon dioxide
concentrations associated with climate
change, among other factors. The 2010
finding recognized the potential value of
conifer removal treatments, particularly
when done in the early stages of
encroachment when sagebrush and forb
understory is still intact (75 FR 13910,
March 23, 2010).
Prior to 1860, two-thirds of the Great
Basin was treeless and occupied by
sagebrush ecosystems (Miller et al.
2008, p. 13), but since that time the
extent of pinyon-juniper has increased
ten-fold (Miller and Tausch 2001, pp.
15–16). Based on 1999–2012 imagery
(LANDFIRE 1.3.0), approximately 4.7
million ha (more than 11.5 million ac)
of conifer woodlands occur within the
current range of sage-grouse, comprising
more than 6 percent of the current
occupied range. Conifer encroachment
is of greatest concern in MZs III, IV, and
V, but is present at least locally in all
MZs (USFWS 2013, pp. 23–36).
Conifer expansion presents a stressor
to sage-grouse because sites invaded by
conifers do not provide suitable sagegrouse habitat (Factor A). For example,
when juniper increases in mountain big
sagebrush communities, shrub cover
declines and the season of available
succulent forbs is shortened due to soil
moisture depletion (Crawford et al.
2004, p. 8). Sage-grouse have been
found to avoid areas where conifers
have encroached (Doherty et al. 2010b
p. 1547; Casazza et al. 2011, p. 163;
Baruch-Mordo et al. 2013, p. 239). Trees
may also offer perch sites for avian
predators, potentially increasing the
predation risk (see Predation, below).
The extent of conifers within the
species’ range is anticipated to expand
in the future unless effectively treated.
Rangewide, 6 to 13 percent of sagegrouse habitat may be at risk of conifer
encroachment (Manier et al. 2013, p.
92). The most pronounced risks are
across the Great Basin (Manier et al.
2013, p. 92) where approximately 35
percent of sagebrush habitat is estimated
to be at high risk of alteration by
pinyon-juniper in 30 years, 6 percent at
moderate risk, and 60 percent at low
risk (Connelly et al. 2004, pp. 7–8 to 7–
14). While pinyon-juniper expansion
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appears less problematic in the eastern
portion of the range (MZs I, II and VII)
and silver sagebrush communities
(primarily MZ I), conifer encroachment
is an impact mentioned in Wyoming,
Montana, and Colorado State sagegrouse conservation plans, indicating
that this is of some concern in these
States as well (Stiver et al. 2006, pp. 2–
23). Based upon current habitat
information, approximately 10 percent
of the occupied range in the Great Basin
and 2 percent of the occupied range in
the Rocky Mountains are impacted by
conifer encroachment (USFWS 2015a).
Efforts are under way to more precisely
identify areas at risk of conifer
encroachment; that information is
currently unavailable, but will help
target removal efforts in the future.
Conifer encroachment rates have been
estimated between 0.4 and 4.5 percent
annually (Sankey and Germino 2008, p.
413). Encroachment rates are predicted
to increase with long-term changes in
climate (see Climate Change and
Drought, below; Neilson et al. 2005
cited in Miller et al. 2011, p. 145).
Miller et al. (2005, p. 24)
characterized three stages of woodland
succession: Phase I, where conifer are
present but shrubs and herbaceous
species remain the dominant vegetation
that influence ecological processes (e.g.,
hydrologic, nutrient and energy cycles);
Phase II, where conifer are co-dominant
with shrubs and herbaceous species,
resulting in modifications of ecological
processes; and Phase III, where conifer
becomes the dominant species, with
reduced shrub canopy cover and
herbaceous species diversity.
Approximately 80 percent of sites
invaded by conifers are still in Phase I
and Phase II, where some native shrubs
and bunchgrasses are present (Miller et
al. 2008, p. 9). Transition of sagebrush
habitats from Phase II to Phase III is of
particular concern because treatment
options become more limited in Phase
III (Johnson and Miller 2006, p. 8).
Without intervention, 75 percent of
conifer encroachment in the western
portion of the sage-grouse range may
transition into Phase III within the next
30–50 years (Miller et al. 2008, p. 12).
Conservation Efforts
Since 2010, considerable effort has
been undertaken to remove conifers,
thus reducing the impacts of conifer
encroachment to sage-grouse habitat.
Federal Plans and State Plans provide
commitments to reduce conifer
encroachment. The SGI has been
actively treating conifer encroachment
on private lands across the species’
range. Lastly, private land owners have
pursued conifer removal projects,
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including commitments associated with
enrollment in CCAAs.
The effectiveness of these current and
planned treatments varies with the
technique used and proximity of the site
to invasive plant infestations, among
other factors (Knick et al. 2014, p. 553).
The plant-community response to these
treatments is not always consistent or
predictable, and succession may not
move in a desirable direction following
treatment (Miller et al. 2014, entire).
Areas treated for conifers have the
greatest likelihood of sage-grouse using
them after treatment when implemented
in areas still containing some sagebrush,
near mesic habitats, and near sagegrouse populations (Cook 2015, p. 96).
Sage-grouse appear to be more likely to
use treated areas when suitable habitat
is limited in an area (Frey et al. 2013,
pp. 269–270). We are not aware of any
study documenting a direct correlation
between conifer treatments and sagegrouse population response. Successful
treatment of conifers in the future
requires targeted management of
conifers in the most important habitats
for sage-grouse.
Sage Grouse Initiative—Most of the
conifer treatments completed to date
have been accomplished on private
lands by the SGI. Since 2010, SGI has
removed conifers from 163,995 ha
(405,241 ac) primarily in Phase I and II
encroachment areas in the Great Basin
(MZs III, IV, V) (NRCS 2015a, p. 7).
Eighty-four percent of these treatments
occurred in PACs in the Great Basin.
Nearly half of these acres are in Oregon
(MZ V), where conifer encroachment
was reduced by 68 percent on private
lands (NRCS 2015a, p. 2). The SGI in
Oregon targeted conifer removal in
PACs near active leks and other
occupied seasonal habitats (NRCS
2015a, p. 18). SGI will invest an
additional 80 million dollars over the
next 3 years to implement restoration
and enhancement projects on
approximately 1.4 million ha (3.4
million ac), including conifer treatment
projects (NRCS 2015a, p. 29; NRCS
2015b, p. 6). Given the past
accomplishments and the continued
dedication of NRCS to sage-grouse
conservation, we are confident that
these investments in conifer treatments
will continue.
Candidate Conservation
Agreements—Approximately 745,000 ha
(1.8 million ac) are currently enrolled in
CCAAs rangewide. Lands enrolled in
CCAAs require removing undesirable
conifers/junipers encroaching into sagegrouse habitats (USFWS 2014d, p. 47;
USFWS 2015b, p. 50; USFWS 2015c, p.
48; USFWS 2015d, p. 49; USFWS 2015e,
p. 48; USFWS 2015f, p. 49).
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Federal Plans—The Federal Plans
completed in 2015 include
commitments to remove conifers
through implementation of the FIAT.
The FIAT assessments include
treatment schedules for mechanical and
prescribed fire removal. Conifer removal
is prioritized in areas closest to
occupied sage-grouse habitat and where
juniper encroachment is in Phase I or
Phase II. Cumulatively, the FIAT stepdown assessments identify
approximately 3 million ha (7.4 million
ac) of conifer treatments for five priority
landscapes (i.e., Central Oregon,
Northern Great Basin, Snake/Salmon/
Beaverhead, Southern Great Basin, and
Western Great Basin/Warm Springs
Valley) in the Great Basin region (MZs
III, IV, and V).
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Conifer Encroachment Summary
The potential threat of conifer
encroachment has changed since the
last status review. In 2010, we found
habitat fragmentation, due in part to
conifer encroachment, to be a threat to
the species; regulatory mechanisms and
conservation efforts were insufficient to
address this threat. Based on past trends
and the current distribution of pinyonjuniper relative to sagebrush habitat, we
anticipate that expansion will continue
at varying rates across the landscape
and cause further loss of sagebrush
habitat. However, projects to remove
conifers near sage-grouse habitat have
been implemented for PACs, and
regulatory measures included in Federal
and State plans have resulted in a
paradigm shift in land management
objectives and practices that will further
reduce conifer impacts on sage-grouse
and sagebrush habitat. The Federal
agencies have committed to continue
conifer removal projects in the most
important habitats identified in the COT
Report (USFWS 2013, pp. 16–29) and
the FIAT Assessments (BLM 2015a,
entire). For a detailed discussion of
conservation measure implementation
and effectiveness, see Sagebrush
Landscape Conservation Planning.
Mining
In 2010, we evaluated mining as part
of the energy development assessment
and concluded that energy projects
contributed to habitat loss and
fragmentation. Mining was identified as
occurring across the species’ range, but
was most prevalent in Nevada (MZs III,
IV, and V) and Wyoming (MZs I and II).
At that time, regulations addressing
effects from mining were determined to
be inadequate. As a result, the 2010
finding concluded that habitat loss and
fragmentation, caused in part by mining
and inadequate regulatory mechanisms,
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were significant threats to the species
such that listing was warranted under
the Act (75 FR 13910; March 23, 2010).
Mining has occurred throughout the
range of sage-grouse since the mid1800s (Nevada Mining Association
2015), and mining in sagebrush habitats
continues today (American Mining
Association 2014). Mining is generally
divided into three categories, based on
the type of mineral extracted: Locatable,
leasable, and salable minerals (BLM
2015f, p. 1). Additionally, each of these
mining categories has its own specific
regulations. Locatable minerals are hard
rock minerals whose extraction is
subject to the General Mining Law of
1872, such as gold, silver, and copper.
Leasable minerals include resources
such as coal, oil, and gas. Saleable
minerals are more common, lower value
resources, such as sand and gravel (BLM
2015f, p. 1). The extent of mining for
any individual mineral varies widely, as
does the size and activity of individual
mines, making generalizations of
impacts difficult.
Consistent with our 2010 finding (70
FR 13910, March 23, 2010, pp. 13948–
13949), we do not have a
comprehensive dataset about existing
and proposed mining activity to do a
quantitative analysis of potential
impacts to sage-grouse. In 2010, we
were aware of approximately 25,500 ha
(63,000 ac) of existing mining-related
disturbance within the range of sagegrouse; those mining projects and
associated impacts are likely continuing
today. These projects likely removed
sagebrush habitat when first
implemented (70 FR 13910, March 23,
2010, pp. 13948–13949) and continue to
have indirect effects to sage-grouse
populations near the project sites
through disturbance from noise, human
presence, equipment, and explosives
(Moore and Mills 1977, entire). Overall,
the extent of these projects directly
affects less than 0.1 percent of the sagegrouse occupied range. Although direct
and indirect effects may disturb local
populations, ongoing mining operations
do not affect the sage-grouse rangewide.
Currently, surface and subsurface
mining activities are conducted in all 11
States within the sage-grouse range
(Minerals Education Coalition 2015;
National Mining Association 2014a
BLM 2011, entire). Minerals are not
distributed evenly across the sagegrouse landscape, and as a result,
mining activities tend to be localized or
regional. Coal is primarily found in the
Rocky Mountain States, while lithium
has been mined exclusively in Nevada
(although a more recent discovery has
been made in southwestern Wyoming)
(Mining.com 2014). Precious metals,
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while being mined to some degree in all
11 States across the sage-grouse range,
primarily occur in Nevada and Colorado
(USGS 2013).
By reducing and fragmenting habitats
and disturbing individual sage-grouse,
mining can directly or indirectly affect
sage-grouse. Surface and subsurface
mining can reduce sagebrush habitat,
ranging from potential losses of many
thousands of hectares at large industrial
mines to 4 ha (10 ac) or less at smaller
mining operations (Factor A). Habitat
loss and fragmentation could preclude
movements of sage-grouse between
seasonal habitats (Connelly et al. 2011a,
pp. 82–83; Knick and Hanser 2011,
entire). In addition, indirect effects
associated with mining include
disturbance from increased human
presence, traffic, blasting, reduced air
quality, noise, increased dust, and an
increased abundance of humanassociated predators (Factor E) (Moore
and Mills 1977, entire; Brown and
Clayton 2004, p. 2). Mining operations
can also contaminate water sources in
sage-grouse habitats (Moore and Mills
1977, pp. 115, 133; Adams and Picket
1998, p. 486; Ramirez and Rogers 2002,
pp. 434–435). Settling ponds near mines
could also provide breeding areas for
mosquitos and increase the risk of WNv
(Walker and Naugle 2011, p. 132).
Projections of future mining activities
are difficult, as market prices for any
specific mineral commodity vary
greatly. The overall extent of mining
activities in the United States has
remained fairly consistent over the past
5 years (National Mining Association
2014b, p. 1), although coal production,
including the number of coal mines,
within the range of sage-grouse has
generally declined since 2008 (EIA
2015, p. 93). We anticipate that some
amount of mining will occur within the
range of the sage-grouse indefinitely,
depending on the extent of the desired
mineral resource, development of new
mining techniques, and market
conditions. Conservation efforts are
discussed below.
Conservation Efforts
Since 2010, a number of landscapescale efforts have been undertaken to
reduce impacts to sage-grouse across the
range, including habitat loss and
fragmentation from mining. The Federal
Plans are the primary tools for managing
mining impacts to sage-grouse. State
plans in Wyoming and Montana include
regulatory mechanisms to address
impacts from mining. These
conservation efforts are consistent with
the recommendations in the COT Report
(USFWS 2013, p. 49). The Federal and
State plans, as well as individual efforts
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reported to the CED, are discussed in
detail below.
Federal Plans—In the United States,
mining activity is authorized under an
array of statutes affecting resources
administered or leased by the BLM, both
on federally administered lands as well
as other lands where mineral rights have
been reserved to the United States (i.e.,
split-estate lands). The BLM’s statutory
and regulatory authority depends upon
the nature of the mineral deposit (i.e.,
leasable, salable, or locatable). The
General Mining Law of 1872 called for
all locatable mineral deposits on Federal
lands to be free and open to exploration
and purchase (BLM 2011c, p. 3),
limiting the ability to manage these
activities for sage-grouse conservation.
Only areas that have been withdrawn to
mineral entry by a special act of
Congress, regulation, or Secretary of the
Interior public land order are truly
closed to locatable mineral entry. Coal
is administered by the Office of Surface
Mining Reclamation and Enforcement,
which in turn may delegate their
authority to the States.
The majority of mining activity within
the sage-grouse range occurs on Federal
lands where the Federal Plans direct the
management of mineral development
(BLM and USFS 2015, entire). Except in
Wyoming, all PHMA is closed to new
mineral material sales and leasable
mineral operations, with exceptions for
Free Use Permits and the expansion of
existing operations. Free Use Permits
allow governmental agencies and
nonprofit organizations to extract and
use mineral materials for up to 10 years
(BLM 2013b, p. 1). Any proposed
expansion of existing mining operations
in PHMA would require design features
to minimize impacts and would require
mitigation of any impacts. Wyoming
remains open to new mining activities
within PACs, but those activities are
restricted by a disturbance and density
cap as per the Wyoming Plan (see
Wyoming State and Federal Plans,
above).
The Federal Plans designate the most
important sagebrush habitat as SFAs
where locatable mineral withdrawal is
recommended, except in Wyoming
where only a portion is recommended
for withdrawal. For proposed coal
projects, the BLM will determine at the
time of a new lease if an area is suitable
for development. During that
evaluation, PHMA will be considered
essential for sage-grouse conservation,
ensuring that decisions are made with
consideration of sage-grouse
conservation needs. General sage-grouse
habitats (GHMA) are open to mineral
development, but are subject to
stipulations designed to protect sage-
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grouse. In addition to these miningspecific measures, no discretionary
anthropogenic activities in PHMA
would be allowed to impact more than
3 percent (or 5 percent in Wyoming and
Montana) of the total sage-grouse habitat
within a Biologically Significant Unit
(BSU). Any authorized activities that
result in loss of sage-grouse habitat
would require mitigation in an amount
or manner that results in a net
conservation benefit to the species.
Further, in response to monitoring,
activities allowable under the Federal
Plans may be adjusted based on
adaptive management criteria to provide
an immediate, corrective response to
identified triggers for population or
habitat declines. Due to limitations
explained above, the disturbance caps
may have limited applicability to some
types of mining activities, but do place
limits on other disturbance if adaptive
management triggers are exceeded.
These measures reduce potential
mining impacts to sage-grouse on
approximately 14 million ha (35 million
ac) of PHMA. The restrictions on
leasable and salable mining in PHMA
eliminate nearly all potential habitat
loss associated with those activities. To
the limited extent those activities could
occur in PHMA, design features would
be required to minimize disturbance,
and mitigation would be required for
any impacts. The laws governing
locatable mineral development and coal
mining limit the ability to completely
remove this threat from PHMA.
Locatable mineral development is likely
to continue in the future, but it is
difficult to know the location or extent
of future mining activity within the
range of sage-grouse. The SFAs contain
the habitats and populations most
important to the long-term conservation
of the species and needing protection
from future mining impacts, and at this
time we are currently unaware of
planned mining activity in these areas
that rise to the level of causing
population-level impacts to sage-grouse.
Within the areas of greatest
conservation importance (SFAs), DOI
will recommend withdrawal from
locatable mineral entry. We support the
recommendations for mineral
withdrawal in SFAs that would remove
potential impacts on approximately 4
million ha (10 million ac) of sage-grouse
habitat. In Wyoming, the BLM adopted
the State strategy, which has proven to
be effective in directing activities
outside of habitat and limiting impacts
when they do occur (see State Plans,
below). These measures minimize
mining impacts in priority habitats for
the life of the management plans,
estimated to be the next 20 to 30 years.
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Based on what we know today, no
mining activities are likely to result in
loss of these important areas for
conservation, but we recognize that
economic changes or technological
advances may increase the risk of
development in the future. Therefore,
the long-term protection of the sagegrouse habitat in the SFAs from
locatable mineral development will
ensure that these important populations
are conserved into the future.
State Plans—State plans in Wyoming
and Montana include regulatory
mechanisms that reduce impacts to
sage-grouse from mining on applicable
lands. The Wyoming and Montana Plans
include controlled surface use, lek
buffers, and seasonal and noise
restrictions to reduce impacts in Core
Areas (Montana EO 10–2014, pp. 14–19;
Wyoming EO 2015–4, entire).
The States also implement Federal
regulations for coal mining. Coal mining
is regulated by the Surface Mining
Control and Reclamation Act of 1977
(SMCRA), which is implemented by the
Office of Surface Mining and
Reclamation. This Federal law requires
consideration of fish and wildlife
resource information for the permit and
adjacent area, along with a detailed
analysis by the permittee on how
impacts will be minimized or avoided.
Permittees must also include a plan for
enhancement of fish and wildlife
resources on the permit area. The OSM
has delegated the regulatory authority
for implementing the SMCRA to five
States within the range of sage-grouse:
Wyoming, Montana, Utah, Colorado,
and North Dakota. Sage-grouse,
therefore, must be considered in the
implementation of the SMCRA, and coal
mining, in those States. The
implementation agency must consider
impacts on fish and wildlife, including
sage-grouse. Sage-grouse are also
typically addressed in all States within
its range during the development of coal
resources simply due to its status as a
State trust resource.
Mining Summary
The impacts of mining have been
reduced since the last status review. In
2010, we concluded that habitat
fragmentation, due in part to mining,
was a significant threat to the species,
and regulatory mechanisms were not
sufficient to address the threat. The
scattered nature and intensity of mining,
coupled with market uncertainty, makes
it difficult to accurately predict impacts
to sage-grouse on a rangewide basis. If
future locatable mineral development
occurred, it could have local impacts to
leks and populations. This type of
mining impact is most likely to occur in
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Nevada where locatable mineral
development has occurred the most
historically; however, predictions of
future mining activities would be
speculative. The regulatory mechanisms
in the Federal and State Plans will be
effective in reducing potential mining
impacts on State owned-lands, and in
the case of Wyoming and Montana, in
Core Areas. Controlled surface use
directs activities outside of sage-grouse
habitat to minimize the potential for
habitat loss and fragmentation. Indirect
impacts from human activity, noise, and
traffic are reduced by lek buffers and
seasonal and noise restrictions. When
mining does occur, disturbance caps
ensure that no more than 3 percent of
the habitat in an area is impacted in
most areas, and no more than 5 percent
in Wyoming and Montana. Collectively,
the Federal and State plans reduce
impacts related to various types of
mining on 90 percent of sage-grouse
breeding habitat (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness).
Renewable Energy
In 2010, we evaluated the impacts of
renewable energy development (wind,
solar, and geothermal) on sage-grouse,
and concluded that it was a threat to the
species (75 FR 13910, March 23, 2010,
pp. 13949–13954). At that time,
renewable energy development was
increasing across the species’ range, and
regulatory mechanisms were inadequate
to address impacts to the species.
Development of commercially viable
renewable energy continues to increase
across the sage-grouse range (EIA 2015,
entire; DOE 2014, entire). Studies
examining the impacts of renewable
energy development on sage-grouse
populations are limited. Renewable
energy facilities typically require many
of the same features for construction
and operation as do nonrenewable
energy resources, and, therefore, we
anticipate their impacts will be similar.
These include direct habitat loss and
habitat fragmentation (Factor A) through
construction and operation of an energy
facility, and indirect effects resulting
from the presence of power lines,
human activity, introduction of invasive
plants and novel predators, and noise
(Connelly et al. 2004, pp. 7–40 to 7–41;
Holloran 2005, p. 1; Pruett et al. 2009,
p. 1258; Patricelli et al. 2013, p. 231;
Howe et al. 2014, p. 46; see
Nonrenewable Energy, Mining, and
Infrastructure).
Given the incentives provided by the
Energy Policy and Conservation Act,
and State mandates, we anticipate the
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development of commercially viable
renewable energy will continue into the
future. However, since 2010,
conservation efforts have been
implemented to direct the location of
development to reduce renewable
energy impacts across the occupied
range of the species. The potential
future extent and impacts of the three
primary kinds of renewable energy
within the occupied range of sagegrouse (wind, solar, and geothermal) are
discussed further below, as well as the
conservation efforts that ameliorate the
effects.
Wind
Wind energy development is
facilitated by Federal and State energy
laws and policies that encourage its
development. In 2008, the DOE issued
an initiative to increase wind energy
production by 20 percent by 2030 (DOE
2014, entire). Idaho and California
provide tax incentives and loan
programs for renewable energy
development (State of Idaho 2015;
California Energy Commission 2015),
and Colorado and Nevada have laws
requiring increased renewable energy
production (AFWA and USFWS 2007,
p. 8; Nevada Public Utilities
Commission 2015). With the advent of
Federal tax credits for wind energy
facilities, wind development increased
20 percent in 2013 (Esterly and Gelman
2013, p. 3).
The current amount of implemented
wind development within the species’
occupied range is low. A geospatial
assessment of currently implemented
projects reveals that, within the species’
occupied range, about 1,400 ha (3,500
ac) have been impacted by wind energy
development; these projects occur in
MZs I, II, III, and IV and impact less
than approximately 0.002 percent of the
occupied range (USFWS 2015a). The
BLM has issued several ROWs in
support of continued and future wind
development that may influence sagegrouse habitats, but actual development
of these ROWs into commercial
facilities is not certain (Manier et al.
2013, p. 61).
Wind energy has the potential for
development throughout the sagegrouse’s occupied range. The National
Renewable Energy Laboratory has
modeled and mapped the wind
resources in each of the States and
classified the potential for wind power
generation. All MZs contain areas where
wind resources have been identified as
economically developable over the next
20 years. More than 14 percent of the
sage-grouse occupied range has high
potential for commercial wind power,
with MZs I and II having the greatest
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potential (BLM 2005b, p. 5–103; NREL
2014, p. 2). In a separate assessment, the
BLM estimated that 600 km2 (232 mi2)
of BLM-administered lands could be
developed within the sage-grouse’s
range before 2025 (BLM 2005b, pp. ES–
8, 5–2). We are aware of four
preliminary, planning-stage wind
project proposals in Montana (MZ I) that
may encroach into sage-grouse habitat
(USFWS 2015a). Adverse impacts to
sage-grouse could occur if these projects
were implemented, but whether or not
these proposals may be further refined,
or even constructed, is unknown.
Wind development projects can have
a variety of direct and indirect impacts
to sage-grouse (LeBeau et al. 2014,
entire). Habitat loss and fragmentation
can occur from the construction of wind
farms and associated facilities such as
power lines, roads, power substations,
meteorological towers, and work
facilities (BLM 2005b, pp. 3.1–3.4).
Sage-grouse, similar to other lekking
birds, have been found to avoid humanmade structures such as power lines and
roads (e.g., Holloran 2005, p. 1; Pruett
et al. 2009, p. 1258). Wind power
facilities may provide perches and
subsidized food that attracts predators
and increases predation on sage-grouse
(LeBeau et al. 2014, p. 528). Noise from
turbines or associated human activities
may interfere with normal foraging,
resting, and breeding behaviors and
contribute to higher stress levels and
reduced fitness (Patricelli et al. 2013, p.
231). Sage-grouse could be killed by
flying into turbine rotors or towers
(Erickson et al. 2001, entire), although
reports of this happening are limited.
Solar
Like other forms of renewable energy,
solar energy development has increased
in recent years, but minimal activities
have occurred within the range of sagegrouse. Currently, only two solar
projects have been constructed within
the range of sage-grouse, in Nevada and
Oregon (USFWS 2015a). The primary
impact from solar facilities is habitat
loss due to the installation of solar
panels and diversion of water to support
the facilities (Manier et al. 2013, p. 66).
However, at this time large-scale solargenerating systems have not contributed
to any calculable direct habitat loss for
sage-grouse.
Future impacts from solar energy
development are forecast to be
extremely limited. In 2012, the BLM
assessed potential solar development on
their lands within six western States
(BLM 2012). That assessment provided
direction to exclude solar development
from identified sage-grouse habitat on
BLM public lands in Nevada and Utah.
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Future development on private lands is
possible, but the best available
information does not indicate that any
large-scale solar projects are planned on
private lands within the range of sagegrouse at this time.
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Geothermal
Geothermal exploration and
development activity on Federal lands
has been sporadic, but activity has
increased in recent years. Currently,
four geothermal facilities have been
constructed within the range of sagegrouse in MZs III and IV, totaling 57,384
ha (141,800 ac; Manier et al. 2013, p.
70). The BLM has approved several
geothermal leases throughout MZs III,
IV, and V and covering approximately
0.29 percent of the occupied range, but
the potential of these leases being
developed is unknown. Many of these
leases have existing stipulations
protecting sage-grouse seasonal habitats
(BLM and USFS 2015, entire). No
geothermal development has occurred
in MZs I and II, although geothermal
potential exists throughout these MZs
(Manier et al. 2013, p. 70).
The greatest potential for future
commercial geothermal energy
development is within MZs III, IV, and
V (EIA 2009, entire). Currently,
approximately 1,800 km2 (694 mi2) of
active geothermal leases exist on public
lands primarily in the Southern (MZ IV)
and Northern Great Basin (MZ III)
(Knick et al. 2011, p. 245). However, it
is unknown what portion of these leases
will ever realize an operational
geothermal project. Nevada is predicted
to experience the greatest increase in
geothermal growth across the United
States (BLM and USFS 2008, pp. 2–35).
Impacts from geothermal energy
development have not been studied, but
are expected to be similar to oil and gas
development (Manier et al. 2013, p. 70).
Direct habitat loss could occur from
development of well pads, structures,
roads, pipelines, and transmission lines.
Sage-grouse could be disturbed by
human activity during installation and
operation of geothermal projects (EIA
2009, entire). Water needed for
installation and operation of geothermal
facilities could deplete local water
sources and potentially impact broodrearing habitat.
Conservation Efforts
Since 2010, State and Federal
agencies have worked collaboratively to
develop regulatory mechanisms to
reduce or eliminate the potential threat
of new renewable energy development.
The BLM and USFS amended or revised
Federal Plans to restrict development in
priority habitats. States developed and
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implemented State plans that govern
development on State and private lands.
These efforts are in addition to direction
to conserve sage-grouse that was
provided by wind, solar, and geothermal
assessments conducted by the BLM.
Federal Plans—The Federal Plans
substantially reduce potential impacts
to sage-grouse from renewable energy
development on more than half the
species’ occupied range. The Federal
Plans generally exclude new utilityscale and commercial solar and wind
developments on 14 million ha (35
million ac) of PHMA (BLM and USFS
2015, entire). Within the 13 million ha
(32 million ac) of GHMA, renewable
energy project locations are to be
prioritized for development outside
sage-grouse habitat. In addition, in
Nevada, California, Utah, and Colorado,
the Solar Energy Development
Programmatic Environmental Impact
Statement (EIS) (BLM 2012, entire)
excludes solar development in sagegrouse habitat, protecting a majority of
the habitat areas on BLM lands with
solar potential. Based on a geospatial
assessment of these measures, the
Federal Plans reduce the percentage of
modeled breeding habitat potentially
impacted by solar development from 15
percent to less than 1 percent and by
wind development from 42 percent to 6
percent.
For geothermal projects, NSO is
required in the 14 million ha (35 million
ac) of PHMA for all States except
Nevada and Wyoming. In Nevada,
limited geothermal development could
occur on Federal lands if it is
determined that sage-grouse will not be
impacted (BLM and USFS 2015, entire).
In Wyoming, geothermal projects are
subject to use restrictions including
disturbance caps. Geothermal projects
are allowed in GHMA, with measures
such as timing limitations to minimize
impacts. Priority will be given first to
leasing and authorizing developing
geothermal projects outside of PHMA
and GHMA, then to non-habitat areas
within PHMA and GHMA, and lastly to
the least suitable sage-grouse habitat.
Based upon a geospatial assessment of
the land uses, the Plans reduce the
percentage of breeding habitat
potentially impacted by geothermal
development from 33 percent to 4
percent (USFWS 2015a).
State Plans—Three State Plans
provide regulatory mechanisms that
effectively reduce impacts from
renewable energy development in that
State. In Wyoming, the Wyoming Plan
does not allow wind energy
development, the primary type of
renewable energy pursued in Wyoming,
in Core Areas, effectively removing this
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potential threat on approximately 6
million ha (15 million acres) of
important sage-grouse habitat. Since
2007, Wyoming has denied 27 lease
applications for wind development on
State trust lands due to this restriction
in Core Areas. On State lands or where
State authorizations are required,
Montana’s Plan requires avoidance of
wind development in Core Areas and
recommends no such development
within 4 miles of active leks in general
habitat (unless best available science
demonstrates there will be no decline in
sage-grouse populations) (Montana EO
10–2014, pp. 18, 19, 21). Oregon’s Plan
requires avoidance, minimization, and
compensatory mitigation actions for
development in sage-grouse habitat on
State and private land and, in
conjunction with BLM’s Federal Plan,
caps the amount of disturbance on sagegrouse core habitat to 3 percent per PAC
(Oregon OAR 635–140–0025, entire; and
Oregon OAR 660–023–0115, entire).
Renewable Energy Summary
In 2010, renewable energy was
identified as a potential contributor to
habitat fragmentation, and we
concluded that regulatory mechanisms
were not sufficient to address the threat
in the future. Since 2010, regulatory
mechanisms provided by Federal Plans
and Wyoming, Montana, and Oregon
Plans that eliminate or restrict most new
renewable energy development in
important sagebrush habitats
substantially reduce this potential
impact on approximately 90 percent of
the sage-grouse breeding habitat. Some
renewable energy development will
occur in the future, primarily on private
land or in GHMA, but it is impossible
at this time to predict if, where, or how
much development could occur.
Avoidance and minimization measures
included in the Wyoming, Montana, and
Oregon Plans and the Federal Plans
would reduce potential impacts if those
projects did occur (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness), consistent with
recommendations in the COT Report
(USFWS 2013, pp. 43–44). Based on
previous land use planning efforts, we
expect these regulatory measures to be
in place for the next 20 to 30 years.
Urban and Exurban Development
In 2010, we evaluated the impact of
urban and exurban development
together with agricultural conversion
and infrastructure, and determined that
collectively those land uses were
contributing to habitat fragmentation (75
FR 13910, March 23, 2010, p. 13931).
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Furthermore, the 2010 finding
concluded that habitat fragmentation
and inadequate regulatory mechanisms
were threats to the species such that
listing was warranted under the Act (75
FR 13910, March 23, 2010).
Impacts from European settlement
began in the southwestern portion of the
sage-grouse range (MZ III) as early as the
1600s and were widespread in the
northern portion of the range by the
mid-1800s (Schroeder et al. 2004, pp.
371–372). Today, urban and exurban
development are part of the human
footprint on the landscape along with
other anthropogenic features, such as
roads and power lines (Leu et al. 2008,
p. 1119; Bar-Massada et al. 2014, p.
429). We consider urban areas to be
those areas that are densely developed
residential, commercial, and industrial
built-up areas (U.S. Census Bureau
2012, p. 1) and typically have a housing
density of more than one unit per 0.4 ha
(more than one unit per ac) (Brown et
al. 2005, p. 1853). Exurban development
includes both development at the fringe
of urban areas and rural residential
development, typically with a housing
density of one unit per 0.4 to 16 ha (1
to 40 ac) (Brown et al. 2005, p. 1853).
Exurban development has been one of
the fastest growing land uses in the
United States in recent years (Hansen et
al. 2005, pp. 1893–1894; Theobald 2005,
p. 1).
Most urban development is at the
edge of the sage-grouse range while
exurban development is scattered
throughout the range, though limited to
private lands (Connelly et al. 2004, p. 7–
25; Knick et al. 2011, p. 212). Major
urban areas include the Columbia River
Valley in Washington (MZ VI), the
Snake River Valley in Idaho (MZ IV),
and the Bear River Valley in Utah (MZ
II) (Connelly et al. 2004, p. 7–25). Using
the information in Theobald 2014
(entire), we completed a geospatial
assessment of 2010 Census data and
estimated that urban and exurban
development directly affects less than 1
percent of the sage-grouse occupied
range. Indirect areas of influence related
to increased predator impacts may
extend up to 3.0 km (1.86 mi) from these
direct footprints (Bui et al. 2010, p. 65).
Factoring in these indirect effects, urban
and exurban development could
influence approximately 12.4 percent of
the sage-grouse’s occupied range. Since
human population data only considers
primary residences, the impact of
exurban development in rural areas,
especially areas affected by seasonal and
recreational use, is likely
underestimated (Brown et al. 2005, p.
1852).
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Urban development affects sagegrouse habitat through the removal of
vegetation and subsequent construction
of buildings and associated
infrastructure (Factor A; Knick et al.
2011, p. 217). In contrast to urban areas,
exurban areas may continue to provide
some sagebrush habitat, but it is
typically less suitable due to associated
anthropogenic disturbances (Connelly et
al. 2004, p. 7–26). Both urban and
exurban development can result in an
increase in predation from pets and
novel predators typically associated
with humans (e.g., ravens, skunks
[Mephitis mephitis], fox), invasive
plants, and recreation impacts. Noise
associated with urban and exurban
development may also affect breeding
activity and other sage-grouse behavior
(Factor E); however, little information is
available that assesses this impact
relative to urban activities (Blickley et
al. 2012, p. 470). Sage-grouse avoid
human development for nesting and
brood-rearing (Aldridge and Boyce
2007, p. 508). Approximately 99 percent
of active leks are in landscapes with less
than 3 percent developed lands;
whereas inactive leks have more than 25
times the development and human
density of active leks (Wisdom et al.
2011, p. 462; Knick et al. 2013, p. 1547).
Sage-grouse extirpation was determined
to be most likely in areas that had a
human population density of at least
four persons per 100 ha (four persons
per 0.01 km2 or 247 ac) (Aldridge et al.
2008, pp. 983 and 991).
Human populations have increased in
size and spatial extent over the past
century, particularly in the western
portion of the sagebrush biome (Stiver et
al. 2006, Appendix C–2; Torregrosa and
Devoe 2008, p. 10). Between 2000 and
2039, the U.S. population is projected to
increase by 29 percent, with much of
that increase likely to happen in
western States (Torregrosa and Devoe
2008, p. 10). The areas of the species’
occupied range at highest risk of
development are private lands along the
southeastern, southwestern, and
southern portions of the species’ range,
and south of the Snake River, and in the
Columbia Basin (USFWS 2013, pp. 16–
29). If these projected population
increases occur, the human footprint
from development and resultant impacts
will also increase, leading to additional
habitat loss and fragmentation in those
areas. Over half of the sage-grouse’s
occupied range is on federally owned
lands that are not at risk of urban and
exurban development. Nonetheless,
development on adjacent private lands
could have indirect impacts, as
discussed above.
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Conservation Efforts
Avoiding or minimizing additional
urban and exurban development in
sage-grouse habitats requires identifying
habitats most at risk to development,
developing and implementing land
policies to acquire, maintain, or
enhance habitat, and promoting
ecologically sustainable private lands
and ranches in sage-grouse habitat
(Stiver et al. 2006, p. 33). Because urban
and exurban development occurs
primarily on private lands, conservation
efforts focused on private land
management, such as CCAAs and SGI,
are most effective in ameliorating this
impact.
Candidate Conservation
Agreements—CCAAs are an effective
tool for eliminating future development
on private lands within the occupied
range of sage-grouse. This outcome is
because landowners enrolled in sagegrouse CCAAs have agreed not to
pursue subdivision of rangeland, new
building construction, or other new
associated infrastructure. To date, all
private lands within the species’ range
in Oregon and Wyoming are potentially
covered by CCAAs; approximately
745,000 ha (1.8 million ac) have
landowner commitments, effectively
removing the risk of urban and exurban
development in these areas.
Sage Grouse Initiative—Conservation
easements are voluntary agreements
between a landowner and with a land
trust, the NRCS, or other organizations
or agencies that maintain the land in
private ownership with development
restrictions that are typically
permanent. Conservation easements can
permanently protect sagebrush habitat
from subdivision while providing
compensation to landowners. The
NRCS, through implementation of the
SGI, has entered approximately 182,870
ha (451,884 ac) into conservation
easements through fiscal year 2013
(NRCS 2015a, p. 38). Most easements for
sage-grouse are located inside PACs (79
percent), and 94 percent of them
provide permanent protection from
future development.
State Plans—The Montana, Wyoming,
and Oregon Plans include measures to
address urban and exurban
development. The Montana Plan
regulates habitat loss due to
urbanization on State lands and on
private lands if a project needs an
authorization from the State. The
Montana Plan includes seasonal, timing,
and noise restrictions; disturbance caps;
lek buffers; and other conservation
measures to reduce the potential threat
of urbanization (Montana EO 10–2014,
pp. 13–21). The Wyoming Plan includes
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disturbances from exurban and urban
development in calculations of their
disturbance caps, which are used to
limit overall disturbance in Core Areas.
Oregon’s State regulations require cities
and counties to avoid sage-grouse
habitat when amending land use
planning designations that could
increase opportunities for urban and
exurban development or when making
changes to their codes that may affect
sage-grouse habitat. To the extent that
urban and exurban development were to
occur, it also would be subject to
regulations (requiring avoidance,
minimization, and compensatory
mitigation) and a cap on the amount of
disturbance on sage-grouse core habitat
to 3 percent per PAC (Oregon OAR 635–
140–0025, entire; and Oregon OAR 660–
023–0115, entire).
Federal Plans—Lands administered
by the BLM and USFS are not directly
affected by urban and exurban
development, as those agencies are not
authorized to permit those land uses.
The Federal Plans require that any
PHMAs and GHMAs be retained in
Federal management, thus preventing
transfer to private landownership that
could result in urban or exurban
development. Limited exceptions to this
provision could be allowed if transfer of
land ownership would benefit sagegrouse or not cause any adverse effects.
As a result of the Federal land
ownership and limitations on
transference provided by the Federal
Plans, the risk of urban and exurban
development is reduced on
approximately 90 percent of the
breeding habitat across the species’
range.
Summary of Urban and Exurban
Development
The 2010 finding concluded that
growing human populations and
associated urban and exurban
development were adversely affecting
sage-grouse. Urban and exurban
development is expected to continue to
affect sagebrush habitat throughout the
sage-grouse range, causing localized
impacts to individuals and populations.
The impacts are not anticipated to occur
evenly across the range; they are
expected to occur primarily upon
private lands and likely near existing
developed areas as populations expand.
Fifty-three percent of the occupied
range is on federally owned lands where
urban and exurban development is
unlikely to occur, although associated
infrastructure and indirect effects are
possible. Existing urban and exurban
development will continue to affect
sagebrush habitat at many locations
scattered throughout the sage-grouse’s
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range, causing impacts to individuals or
populations. Substantial private land
conservation efforts that are consistent
with the recommendations of the COT
Report (USFWS 2013, pp. 50–51),
including SGI’s completion of more
than 182,870 ha (451,884 ac) of
conservation easements, have
minimized potential impacts of new
development throughout the range.
Recreation
In 2010, we evaluated the effect of
recreation on sage-grouse and
concluded that it was not a threat to the
species (75 FR 13910, March 23, 2010,
pp. 13984–13985). We have no new
information at this time to change the
conclusion that recreation is not a threat
to the species. Recreational hunting of
sage-grouse is discussed in another
section (see, Hunting) and is not
discussed in this section.
Recreational activities occur across
the range of the species (42 of the 48
sage-grouse populations; USFWS 2013,
pp. 16–29), but are of limited severity
and typically concentrated in specific,
designated areas, such as trails and
campgrounds. Recreational activities
include hiking, camping, fishing,
horseback riding, mountain biking, offhighway vehicle use, and wildlife
viewing (Ouren et al. 2007, p. 2; Ibrahim
and Cordes 2008, p. 14; Knight 2009, p.
167; NDOW 2014, p. 1). The majority
(72 percent) of recreational visits to
BLM-administered lands occurred in
areas not containing sagebrush
(ECONorthwest 2014, p. 13), indicating
that sage-grouse habitat may be affected
less frequently by recreation than other
areas. Little information exists about the
level of impacts that may be occurring
from recreational activities
(ECONorthwest 2014, p. 13); however,
off-highway vehicle impacts to sagegrouse habitat have been reported in a
few areas in Oregon (Hagen 2011, pp.
197–198). Impacts have also been
reported at leks in Oregon and Nevada,
where regular lek viewing has caused
disturbance (Budeau, Oregon
Department of Fish and Wildlife, 2014a,
pers. comm.; Espinosa, Nevada
Department of Wildlife, 2014a, pers.
comm).
Though limited in extent and
frequency, recreational activities can
have a variety of direct and indirect
effects to sage-grouse. Although rare,
people can crush eggs or strike birds
with vehicles (Factor E) (Connelly et al.
2000b, p. 228; Wiechman 2013, p. 12).
Activities could degrade habitat,
introduce invasive plants, or increase
wildfire risk (Factor A) (NWCG 1999,
pp. 6–7, Ouren et al. 2007, p. 16; Knick
et al. 2011, p. 219). Noise and
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movement associated with recreational
activity may disrupt sage-grouse
behavior or movement patterns (Factor
E) (Blickley et al. 2012, pp. 467–470,
Patricelli et al. 2013, p. 242). Predation
(Factor C) may increase due to increases
in trash associated with recreational
activities or due to the presence of pets
accompanying humans (Knick et al.
2011 p. 219; Young et al. 2011, pp. 126–
127).
Given the limited data about
recreational activities occurring in sagegrouse habitat, it is difficult to
accurately predict future impacts on
sage-grouse throughout the range.
However, based on historical and
current trends, recreational activities are
likely to continue on the landscape
indefinitely. Recreational activities may
increase over time in correlation to
predicted increases in human
populations.
Conservation Efforts
Federal Plans—The Federal Plans
include conservation measures
consistent with the COT Report
recommendations (USFWS 2013, p. 50)
to reduce recreation impacts (BLM and
USFS 2015, entire). The Federal Plans
exclude new recreational facilities in
PHMA, with limited exceptions when
needed for safety or when beneficial to
sage-grouse. Off-highway vehicle travel
will be limited to existing routes and
trails and that have neutral or net
positive impacts on sage-grouse in
PHMA and GHMA. Additional
measures to minimize potential impacts
that might result from development of
recreational facilities and infrastructure
include seasonal and timing restrictions,
lek buffers, disturbance caps, and
mitigation.
State Plans—The Montana State Plan
includes conservation measures, such as
seasonal and noise restrictions and lek
buffers, to reduce impacts from new
recreation facilities on State lands and
private lands where State authorization
is required (Montana E.O. 10–2014, pp.
4, 13–21). In addition, most States
discourage recreational viewing of sagegrouse during the breeding season and
do not provide lek locations to the
general public (Budeau, Oregon
Department of Fish and Wildlife 2014a,
pers. comm.; Robinson, North Dakota
Game and Fish Department, 2014a, pers.
comm.; Schroeder, Washington
Department of Fish and Wildlife 2014,
pers. comm.; Wightman, Montana Fish,
Wildlife, and Parks 2014a, pers. comm.).
In addition, Wyoming and Washington
have measures to minimize impacts
from recreational lek viewing, including
wildlife harassment laws (Christiansen,
Wyoming Game and Fish Department,
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2014a, pers. comm.; Schroeder,
Washington Department of Fish and
Wildlife, 2014, pers. comm).
Summary of Recreation
In the 2010 finding, we concluded
that recreation was not a threat to the
species. No additional evidence has
been discovered or presented suggesting
that recreational activities or the
associated impacts have changed since
the 2010 finding. Recreation continues
to be an activity that occurs sporadically
across the range of the species, with
some localized impacts, but no
population-level effects to the species.
Together, the Federal Plans and
Wyoming, Montana, and Oregon State
Plans reduce impacts from recreation to
the areas identified as PHMA and
GHMA, which encompass
approximately 90 percent of the
modeled breeding habitat across the
species’ range (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness). Therefore, we conclude
that recreation is not a threat to the
species, now or in the future.
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Climate Change and Drought
In 2010, we evaluated the effect of
climate change and drought on sagegrouse (75 FR 13910; March 23, 2010;
pp. 13954–13957). While the direct
impact of climate change on sage-grouse
was unknown, we found climate change
to be intensifying other threats such as
fire and invasive species. We found
drought not to be a substantial threat to
the species across its range.
Climate Change
Our analysis of impacts to sage-grouse
attributable to climate change includes
the consideration of ongoing and
projected changes in climate across the
sage-grouse’s range. The terms
‘‘climate’’ and ‘‘climate change’’ are
defined by the Intergovernmental Panel
on Climate Change (IPCC). ‘‘Climate’’
refers to the mean and variability of
different types of weather conditions
over time, with 30 years being a typical
period for such measurements, although
shorter or longer periods also may be
used (IPCC 2007, p. 78). The term
‘‘climate change’’ thus refers to a change
in the mean or variability of one or more
measures of climate (e.g., temperature or
precipitation) that persists for an
extended period, typically decades or
longer, whether the change is due to
natural variability, human activity, or
both (IPCC 2007, p. 78). Various types
of changes in climate can have direct or
indirect effects on species. These effects
may be positive, neutral, or negative,
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and they may change over time,
depending on the species and other
relevant considerations, such as the
effects of interactions of climate with
other variables (e.g., habitat
fragmentation) (IPCC 2007, pp. 8–19). In
seeking to evaluate the potential
impacts of climate change on sagegrouse, we have weighed relevant
information, including areas of
uncertainty, together with our
understanding of sage-grouse biology
and ecology.
Increases in global and regional
ambient temperature and variable
changes in precipitation are projected
out to the end of the 21st century (IPCC
2013, p. 19). Some degree of uncertainty
is inherent in these and other
projections of future change; however,
climate change will likely affect to some
degree the entire range of sage-grouse,
with the greatest potential adverse
impacts occurring in the southern Great
Basin (Schlaepfer et al. 2011, p. 380).
Direct impacts of climate on
individual birds are unknown for most
species, including sage-grouse (Factor
E), but climate is likely to influence the
distribution and quality of sage-grouse
habitat (Factor A) (Miller et al. 2011, pp.
174–179, Gardali et al. 2012, p. 3). The
natural distribution of sagebrush is
driven by soil-water availability
(Schlaepfer et al. 2014, p. 349;
Schlaepfer et al. 2015, pp. 7–8), which
is influenced by the amount and
seasonality of precipitation and by
temperature (Bradford et al. 2014, p.
595). Changes in precipitation timing
and increases in ambient temperature
are projected to lead to increased
evaporation and transpiration in
sagebrush habitat and a lengthening
summer period of dry soil conditions
(Bradford et al. 2014, p. 599). These
conditions are projected to be most
pronounced along the southern edge of
the current distribution of sagebrush
(MZs III and VII), and particularly at
low elevations (Schlaepfer et al. 2015, p.
13; Still and Richardson 2015, p. 33). In
these areas, climate change may result
in northward and upslope shifts in frostsensitive woodland vegetation into areas
currently suitable for sagebrush (Neilson
et al. 2005, pp. 153–155; Comer et al.
2012, p. 142; reviewed in Friggens et al.
2012, pp. 8–11; Rehfeldt et al. 2012, p.
126), potentially altering, or displacing
sagebrush habitat. It is unknown to what
extent these changes could result in
habitat loss and fragmentation, but
adverse effects to populations could
occur if habitat loss exacerbates impacts
from other stressors (Johnson et al.
2011, pp. 447–450; Miller et al. 2011,
pp. 183–184; Wisdom et al. 2011, pp.
465–468).
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Beyond affecting sagebrush directly,
the effects of climate change can interact
with and increase effects from other
stressors (Chambers et al. 2014c, p. 368),
such as invasive plants, drought, and
wildfire. For example, cheatgrass grows
best with wet and warm conditions, so
increasing temperature coupled with
increased winter and spring
precipitation is likely to facilitate its
spread (Balch et al. 2013, p. 174).
Combined, these stressors could have
additive impacts to sagebrush habitat
(Bradford et al. 2014, p. 599; Chambers
et al. 2014c, entire) as discussed further
in Cumulative Effects. Climate change is
likely to shift the distribution of
sagebrush at the southernmost extent of
the species’ range, including areas in
MZ III (Schlaepfer et al. 2011, p. 380).
Any other effects of climate change are
unknown at this time, and the extent of
potential cumulative effects is also
unknown.
Drought
Drought is a natural, periodic
occurrence throughout the range of the
sage-grouse. Large-scale drought lasting
a decade, similar to the 1930s Dust Bowl
drought, has occurred once or twice per
century on average (Woodhouse and
Overpeck 1998, p. 2706; Ault et al.
2014, p. 7529), and periodic drought
regularly influences sagebrush
ecosystems (Bar-Massa et al. 2006, p. 1;
Miller et al. 2011, p. 145; Miller et al.
2011, p. 145). In the future, certain
portions of the range (MZs I and VI and
portions of MZs II and IV) are forecast
to have increased risk and higher
severity of drought, though the entire
range will likely be affected (Cook 2015,
p. 6).
Drought impacts to sage-grouse
habitat may affect adult survival,
nesting success, and chick survival
(Factor A). Structural composition of
plants vital for sustaining sage-grouse
nesting success, including plant height
and percent plant cover, may be affected
during drought (Hanf et al. 1994, p. 41).
Decreases in insects and forbs important
for sage-grouse chick survival during
drought may negatively affect sagegrouse populations (Johnson and Boyce
1990, p. 91; Crawford et al. 2004, p. 6;
Aldridge and Bridgham 2003, p. 31;
Fischer et al. 1996, p. 197). Drought has
been correlated with declines in
populations (Patterson 1952, p. 33;
Braun 1998, p. 139) and has coincided
with periods of low population levels
(Connelly and Braun 1997, pp. 231–
232). In the period 1950–2003, drought
had a weak negative effect on sagegrouse persistence, with extirpation
most likely in areas having three or
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more severe droughts per decade
(Aldridge et al. 2008, pp. 983, 992).
Based on precipitation and
temperature projections, drought
frequencies are expected to increase
across the country, especially in the
Rocky Mountain and southwestern
States, including all sage-grouse MZs
(Strzepek et al. 2010, p. 1).
The risk of decade-scale drought
occurring within the southern MZs
within the sage-grouse range (MZs III, V,
and VII and portions of MZs II and IV)
this century is estimated between 20
and 70 percent (Ault et al. 2014, pp.
7541–7542). The probability of decadescale drought in the northern MZs (MZs
I and VI and portions of MZs II and IV)
is between 10 and 50 percent (Ault et al.
2014, pp. 7541–7542).
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Conservation Efforts
Ameliorating the impacts of climate
change and drought to sage-grouse
involves addressing other impacts to the
species to improve the resilience of the
species and its sagebrush habitat under
changing environmental conditions.
Maintaining large expanses of
undisturbed habitat is the best way to
address potential impacts that could
lead to habitat fragmentation; as
discussed in other impacts sections and
Sagebrush Landscape Conservation
Planning, new regulatory mechanisms
and conservation efforts are in place to
address those potential impacts. In
addition, many conservation actions
have been implemented to address those
other impacts that are most influenced
by climate change and drought, such as
wildfire, invasive plants, improper
grazing, and conifer encroachment. Full
discussions of the best management
practices, conservation efforts, and
regulatory mechanisms associated with
these compounding impacts are
included under each impact section in
Summary of Information Pertaining to
the Five Factors.
Climate Change and Drought Summary
The understanding of impacts from
climate change and drought has not
changed substantially from the 2010
finding. Climate change effects on the
timing and amount of precipitation
could adversely affect sagebrush habitat
and food availability, with potential
negative consequences for sage-grouse
survival and recruitment; however, the
extent and nature of this potential
impact is not understood. Drought is a
natural part of the sagebrush ecosystem,
and sage-grouse abundance has been
shown to fluctuate in correlation to
drought conditions. Climate change and
drought are most likely to affect
individuals and populations at the
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southern extent of the species’ range;
however, the extent or nature of those
effects to sage-grouse are unknown at
this time. The greatest concern from
climate change and drought is their
potential to increase wildfire and
invasive plant impacts in the Great
Basin. If hotter and drier conditions lead
to increased burn rates, then increased
habitat loss due to wildfire could be
predicted (see Wildfire and Invasive
Plants, above); however, the extent to
which climate change and drought may
change burn rates is unknown.
Therefore, based on the best available
information, climate change and
drought are not threats to sage-grouse,
now or in the future.
Predation
In 2010, we evaluated the effect of
predation on sage-grouse and concluded
that predation was not a threat to the
species (75 FR 13910, March 23, 2010,
p. 13973). We concluded that landscape
fragmentation is likely contributing to
increased predation on sage-grouse.
However, except in localized areas
where habitat is compromised, we
found no evidence to suggest that
predation is limiting sage-grouse
populations rangewide. New
information developed since that time
does not alter our conclusion.
Predation (Factor C) is the most
commonly identified cause of direct
mortality for sage-grouse during all life
stages (Blomberg et al. 2013b, p. 347;
Caudill et al. 2014, p. 808). Rangewide,
sage-grouse are exposed to a number of
different predators, including raptors,
small mammals, and snakes (Schroeder
et al. 1999, pp. 10–11; Coates et al. 2008
pp. 424–425; Lockyer et al. 2013, p.
248). However, sage-grouse have coevolved with their predators, resulting
in the development of cryptic plumage
and behavioral adaptations that have
allowed them to persist despite this
mortality factor (Coates and Delehanty
2008, p. 635; Hagen 2011, p. 96). Sagegrouse mortality rates due to predation
vary widely by location and time of
year, and short-term studies are often
not representative of population
dynamics for the species across the
range (Taylor et al. 2012b, p. 337).
The habitat fragmentation and
development that began across the
sagebrush ecosystem in the late 19th
century (see Habitat Fragmentation,
above) has caused predator dynamics to
change (Fichter and Williams 1967, p.
225; Baxter et al. 2007, p. 266; Coates
and Delehanty 2010, p. 240). Decreased
habitat quality and quantity has created
a situation in which the sage-grouse are
more vulnerable to predation (Connelly
et al. 1991, p. 524; Coates 2007, pp. 38–
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39; Hagen 2011, p. 96). Agricultural
development, landscape fragmentation,
and encroaching human populations
may increase the diversity and density
of predators (Summers et al. 2004, p.
523; Coates and Delehanty 2010, p. 246;
Dinkins et al. 2014, p. 639). Degraded
and fragmented landscapes can benefit
predators by increasing their kill
efficiency, as well as subsidizing their
food and nest or den substrate (Hagen
2011, p. 100). The abundance of red
foxes (Vulpes vulpes), raccoons
(Procyon lotor), crows (Corvus
brachyrhynchos), and ravens, which
historically were rare in the sagebrush
landscape, has increased in association
with human-altered landscapes
(Luginbuhl et al. 2001, p. 570). Raven
abundance has increased as much as
1,500 percent in some areas of western
North America since the 1960s (Coates
and Delehanty 2010, p. 244). Several
studies have documented negative
effects to sage-grouse associated with
increased corvid populations (corvids
are a group of birds that include ravens,
crows, magpies (Pica spp.), and jays)
(Holloran 2005, p. 58; Coates 2007, p.
130; Conover et al. 2010, p. 335;
Lockyer et al. 2013, p. 242; Coates et al.
2014, pp. 73–74; Howe et al. 2014, p.
36). Ravens may prefer certain sagegrouse habitats, such as big sagebrush
communities and wet meadows, and the
abundance of ravens may increase near
livestock grazing and agriculture (Coates
et al., in press).
High predator abundance within a
sage-grouse nesting area may negatively
affect sage-grouse productivity without
causing direct mortality. The increase in
the numbers of corvids within the
sagebrush ecosystem is an important
change because sage-grouse nests are at
greater risk of predation by these visual
predators (Conover et al. 2010, p. 335).
Even low but consistent raven presence
can influence sage-grouse reproductive
behavior (Bui 2009, p. 32; Dinkins et al.
2012, p. 606). Sage-grouse females tend
to select nest and brood-rearing
locations that are farther away from
predator perches and have lower
densities of avian predators (Dinkins et
al. 2012, p. 606; Dinkins et al. 2014, p.
637). When nesting in areas with
relatively higher abundances of ravens,
females reduce the amount of time they
spend off their nests, potentially
compromising their ability to secure
sufficient nutrition to complete the
incubation period (Coates and
Delehanty 2008, p. 636).
Data are lacking that definitively link
sage-grouse population trends with
predator abundance. At the rangewide
scale, predation is not believed to be a
widespread factor limiting sage-grouse
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population growth (Connelly et al.
2000a, p. 975; Connelly et al. 2004, p.
10–1). However, in localized areas
where habitat is compromised by
human activities, predation could be
limiting local sage-grouse populations
(Coates 2007, p. 131; Bui 2009, p. 33;
Lockyer et al. 2013, p. 242). Holloran
(2005, p. 58) attributed increased sagegrouse nest depredation to high corvid
abundances in western Wyoming,
which resulted from anthropogenic food
and perching subsidies in areas of
natural gas development. Mammalian
predators and ravens are suspected of
causing sage-grouse population decline
and extirpation in Washington
(Schroeder et al. 2014, p. 10). Raven
abundance was also strongly associated
with sage-grouse nest failure in Nevada,
resulting in negative effects on sagegrouse reproduction (Coates 2007, p.
130; Lockyer et al. 2013, p. 242). Studies
on increasing raven populations have
also been recently conducted in Idaho
(Coates et al. 2014, entire; Howe et al.
2014, entire) and central Utah (Conover
et al. 2010, entire).
Since 2010, conservation efforts have
been implemented to address predation
and associated impacts. Conservation
measures can limit the effects of
predation by preventing habitat
fragmentation caused by transmission
lines, roads, and nonnative vegetation
(Howe et al. 2014, p. 46). As discussed
in other sections of this finding,
regulatory measures provided by the
Federal Plans and certain State Plans
limit new development within
important sage-grouse habitat, thus
reducing habitat fragmentation that
facilitates increased predation (see
Nonrenewable Energy Development,
Mining, Renewable Energy, and Urban
and Exurban Development). Measures to
remove predator perches or subsidized
food sources could minimize effects, but
predator removal programs have not yet
proven to be effective, as predator
populations quickly rebound without
continual control (Coates 2007, p 152;
Hagen 2011, p. 99).
In summary, predation was identified
as a potential threat in the 2010 finding
and will likely continue to have adverse
impacts to local populations,
particularly in areas where habitat
fragmentation has occurred. Mortality
due to nest predation by ravens or other
human-subsidized predators is
increasing in some areas (e.g., in MZs
III, VI, and VII), at times causing local
population declines, and in extreme
cases, local extirpations. However,
information about the rangewide extent
of predation is limited and there is no
indication that predation is causing a
rangewide decline in population trends.
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Since the 2010 finding, regulatory
mechanisms from Federal Plans and
Wyoming, Montana, and Oregon State
Plans have been implemented that limit
additional future habitat loss and
fragmentation to the areas identified as
PHMA and GHMA which encompass
approximately 90 percent of the
modeled breeding habitat across the
species’ range (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness). These restrictions on
future development will effectively
eliminate new disturbances that remove
cover habitat and facilitate the
expansion of predators, thus reducing
the potential for predation on sagegrouse.
Disease
In 2010, we evaluated the effect of
disease (Factor C) on sage-grouse and
concluded that disease was not a threat
to the species (75 FR 13910, March 23,
2010, p. 13970). In that finding, we
determined that, while WNv was
affecting some populations, no evidence
existed that disease was a substantial
mortality factor for the persistence of
sage-grouse across the species’ range (75
FR 13910, March 23, 2010, p. 13970).
We have no new information to indicate
that analysis has changed.
Sage-grouse are host to numerous
parasites and pathogens (Connelly et al.
2004, pp. 10–4 to 10–8; Christiansen
and Tate 2011, pp. 114–118). The
presence of parasites or pathogens is not
synonymous with the presence of
disease or population-level impacts
(Connelly et al. 2004, p. 10–3;
Christiansen and Tate 2011, p. 114). To
date, most parasites and pathogens
found in sage-grouse are not known to
cause substantial, chronic mortality or
other adverse impacts to sage-grouse
populations (reviewed in Christiansen
and Tate 2011, pp. 114, 119–125).
West Nile virus is known to have
localized impacts to sage-grouse
populations (Christiansen and Tate
2011, p. 122; Walker and Naugle 2011,
p. 139). Similar to other North American
bird species (McLean 2006, p. 54), sagegrouse are highly susceptible to WNv,
with mortality rates nearing 100 percent
of infected birds (McLean 2006, pp. 53–
54; Clark et al. 2006, p. 18). West Nile
virus is transmitted among birds mainly
through a mosquito-bird-mosquito
infection cycle that relies on optimal
climate conditions and movement of
birds (McLean 2006, p. 52). The
mosquito (Culex tarsalis) is the primary
vector of WNv in sage-grouse (Naugle et
al. 2005, p. 617). Most sage-grouse
infected with WNv die in as few as 6
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days, but a small proportion of infected
birds survive, as evidenced by the
presence of WNv-specific antibodies in
live birds (Walker et al. 2007b, p. 691;
Dusek et al. 2014, p. 726). High
mortality rates from WNv can reduce
average annual adult survival, a limiting
factor in sage-grouse population growth
(Johnson and Braun 1999, p. 81; Taylor
et al. 2012b, p. 343). Population-level
impacts can also result from WNv
mortality in juvenile sage-grouse by
decreasing recruitment into the breeding
population the following year (Kaczor
2008, p. 65; Taylor et al. 2012b, p. 343).
West Nile virus has been detected
across the species’ range, with localized
outbreaks occurring in 10 of 11 States
and 1 of 2 Canadian provinces in the
species’ range (WNv has not been
detected in Washington or
Saskatchewan (USFWS 2014b));
however, sage-grouse are likely to have
been infected in Saskatchewan as well
(Walker and Naugle 2011, p. 133). West
Nile virus infections in other species in
Washington suggest that sage-grouse in
the Columbia Basin could be exposed to
the disease (USGS NWHC 2014). West
Nile virus was first detected in sagegrouse in 2003, with localized outbreaks
occurring from 2004 to 2009 (Naugle et
al. 2004, p. 705); no outbreaks have
been recorded since 2009 (USFWS
2014b). However, no rangewide disease
surveillance program exists to know for
certain the extent of outbreaks across
the species’ range, and it is likely that
many WNv-related sage-grouse
mortalities go undocumented.
Although WNv is present throughout
the range of sage-grouse, on a finer scale
WNv presence depends upon water
sources that provide aquatic breeding
habitat for mosquitoes (Zou et al. 2006,
p. 1035; Doherty 2007, pp. 60–61). The
development of anthropogenic water
sources could provide breeding habitat
for mosquitoes that contribute to WNv
outbreaks. In addition, WNv outbreaks
in humans are associated with drought
conditions and high ambient
temperature in spring and summer
(Epstein and Defilippo 2001, p. 106),
and drought conditions likely increase
the probability of WNv outbreaks in
sage-grouse as well. When high
temperature and drought combine, sagegrouse are concentrated in shrinking
mesic habitats (Schrag et al. 2011, p. 2).
Under these conditions, contact
between mosquitoes and birds
increases, and the risk of WNv
transmission and an outbreak among
sage-grouse is elevated (Walker and
Naugle 2011, p. 131).
The primary conservation measure for
WNv is the control of mosquitoes and
their breeding habitat (Walker and
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Naugle 2011, pp. 140–141). Measures
that limit development that creates new
mosquito breeding habitat or measures
that manage existing water features so
that mosquitos cannot use them to breed
(e.g., circulating water, using larvicides,
or mosquito fish (Gambusia spp.)) are
most effective in reducing future WNv
outbreaks. As discussed in other
sections of this finding, regulatory
measures provided by the Federal Plans
and the Wyoming, Montana, and Oregon
Plans limit new development within
important sage-grouse habitat, thus
reducing the risk of anthropogenic water
sources being constructed that could
provide mosquito breeding habitat (see
Nonrenewable Energy Development,
Mining, Renewable Energy, and Urban
and Exurban Development). In addition,
the Federal Plans contain RDFs that will
minimize the risk of WNv outbreaks,
such as requirements for water feature
installation to minimize the likelihood
of mosquito breeding (see Sagebrush
Landscape Conservation Planning for a
detailed discussion of conservation
measure implementation and
effectiveness). The SGI program
includes assistance to private
landowners to manage water features in
a way that minimizes the likelihood of
mosquito breeding.
With the exception of WNv, we could
find no evidence that disease poses an
impact to sage-grouse across the species’
range. West Nile virus currently is a
localized stressor that has had impacts
on some sage-grouse populations,
having caused declines and in some
cases local extirpations of populations
in North Dakota, South Dakota,
southeast Montana, and Idaho. In those
affected areas, WNv is likely to have an
adverse effect on population growth
rates, with small populations being at
greatest risk of extirpation if outbreaks
reduce population size below a
threshold where recovery is no longer
possible (Walker and Naugle 2011, pp.
137–139, 140). The incidence of WNv is
likely to continue across the species’
range in the future. The factors most
likely to affect future occurrence are
climate change and the abundance and
the distribution of anthropogenic
surface water. Conservation measures
that limit and or manage the
development of new artificial water
sources will minimize habitat
availability for mosquitoes that could
spread WNv. As noted in our 2010
finding, a complex set of environmental
and biotic conditions that support the
WNv cycle must coincide for an
outbreak to occur, and the annual
patchy distribution of the disease is
currently keeping population-level
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impacts at a minimum (75 FR 13910,
March 23, 2010, p. 13970).
Recreational Hunting
In 2010, we evaluated the effect of
recreational hunting on sage-grouse and
concluded that recreational hunting is
not a threat to the species (75 FR 13910;
March 23, 2010; p. 13965). In 2010, we
also determined that the effects of
falconry hunting and poaching are
negligible due to their extremely limited
extent (75 FR 13910; March 23, 2010; p.
13965). We have no new information
about falconry hunting or poaching to
change those determinations; therefore,
they will not be discussed further in this
status review.
During the late 1800s and early 1900s,
the sage-grouse was heavily exploited
by both commercial and sport hunters
(Factor B) (Patterson 1952, pp. 30–33;
Autenrieth 1981, pp. 3–11). State
wildlife agencies were sufficiently
concerned with the observed declines in
the 1920s and 1930s that many closed
their hunting seasons and others
reduced bag limits and season lengths as
a precautionary measure (Patterson
1952, pp. 30–33; Autenrieth 1981, p.
10). By the 1950s, populations were
considered recovered and recreational
hunting was again allowed throughout
the range (Patterson 1952, p. 242;
Autenrieth 1981, p. 11). In recent years,
hunting seasons and bag limits have
fluctuated and become more
conservative across the species’ range as
States responded to changing
population numbers and perceived
threats to birds (Reese and Connelly
2011, p. 104).
In 2014, sage-grouse hunting took
place in 8 of the 11 States where sagegrouse occur. Sage-grouse are listed as a
threatened species in Washington
(Stinson et al. 2004, p. 1), and hunting
has been closed since 1988. Sage-grouse
has not been hunted in Saskatchewan
since 1938, and Alberta closed the
season in 1996 (Aldridge and Brigham
2003, p. 25). In 1998, sage-grouse was
designated as endangered in Canada,
and hunting is prohibited there
(Connelly et al. 2004, p. 6–3). North
Dakota closed its hunting season in
2008 due to low lek count numbers, and
it has remained closed. South Dakota
closed its hunting season in 2013 due to
low lek count numbers; it also remained
closed in 2014. Montana Fish and
Wildlife Commission closed all or parts
of 32 counties to sage-grouse hunting in
2014, and shortened the hunting season
from 2 months to 1 month.
Sage-grouse hunting is regulated by
State wildlife agencies. Hunting seasons
are reviewed annually, at which time
States can adjust harvest management
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based on updated abundance
information and adaptive management
criteria established in State wildlife
management plans. Information on
abundance and local habitat conditions
is used to make any adjustments to the
hunting season necessary to reduce the
potential for additive mortality.
Seasonal adjustments take the form of
changes to the number of permits
issued, changes to the season length or
bag limit, or total closure of the hunting
season. Bag limits and season lengths
are relatively conservative compared to
prior decades (Connelly 2005, p. 9;
Gardner, California Department of Fish
and Game, 2008, pers. comm.; USFWS
2014b). Emergency closures, changes in
permit numbers, and implementation of
more conservative hunting seasons have
been used for populations in decline or
in areas experiencing other issues of
potential concern (Budeau, Oregon
Department of Fish and Wildlife, 2014b,
pers. comm.; Christiansen, Wyoming
Game and Fish Department, 2014b, pers.
comm.; Espinosa, Nevada Department of
Wildlife, 2014b, pers. comm.; Griffin,
Colorado Parks and Wildlife, 2014, pers.
comm.; Moser, Idaho Department of
Fish and Game, 2014, pers. comm.;
Robinson, Utah Division of Wildlife
Resources, 2014b, pers. comm.;
Wightman, Montana Fish, Wildlife, and
Parks, 2014b, pers. comm.).
Recreational hunting is anticipated to
continue into the future, though it is
difficult to make accurate predictions
about specific levels of hunting
mortality because States make
adjustments annually. Given the
downward trend in hunting mortality
reported over the last several decades,
mortality rates from hunting will likely
continue to decrease. Rangewide,
hunting seasons are more conservative
than in the past, which has resulted in
a reduction in sage-grouse hunting
mortality across all sex and age classes
(USFWS 2014b). Many States have
reported estimated hunting mortality to
be lower than the 10 percent mortality
cap recommended by Connelly et al.
(2000a p. 976) (Christiansen 2010, p. 12;
Budeau 2014b, pers. comm.).
In 2010, we concluded that hunting
was not a threat to the species and based
on current information about harvest
rates, it continues not have substantial
impacts to sage-grouse. To date, changes
in the management of sage-grouse
hunting have resulted in a substantial
reduction in sage-grouse hunting
mortality rangewide.
Scientific and Educational Use
In 2010, we evaluated the potential
overuse of sage-grouse for scientific and
educational purposes and determined
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that it was not a threat to the species (75
FR 13910, March 23, 2010). Scientific
use was occurring at low levels, but no
evidence existed to indicate that
scientific use was affecting populations
or abundance trends. No educational
use was known at that time. As
discussed further below, we have no
new information indicating that the
level of utilization for scientific
purposes has changed since the 2010
status review.
Sage-grouse are one of the most
intensely researched and monitored
birds in North America. Scientists
researching or monitoring sage-grouse
typically observe, approach, capture,
handle, band, or attach radio
transmitters to individual sage-grouse to
study their movements, behaviors, and
population dynamics. Translocations
have been used for a variety of scientific
purposes, such as a management tool to
restore or augment declining
populations of sage-grouse and to
improve the genetic diversity of
populations (Alberta Environment and
Sustainable Resource Development
2013, p. viii; White 2013, p. 9;
Schroeder et al. 2014, p. 8; Yakama
Nation 2015, entire).
During research-related activities,
scientists could unintentionally kill,
disturb, or reduce the survival of
individual sage-grouse (Factor B)
(Connelly et al. 2003, p. 32; Gibson et
al. 2013, p. 773). Despite these potential
impacts, sage-grouse mortalities from
scientific activities are extremely rare.
Annually, less than 3 percent of the
sage-grouse captured for research or
monitoring activities die as a result of
their capture and handling (USFWS
2014b). Radio transmitters have had
negative impacts to individual birds
(Connelly et al. 2003, p. 32; Colorado
Parks and Wildlife 2013, p. 48; USFWS
2014b), but no population-level impacts
have been observed.
Survival rates of translocated sagegrouse vary from 36 percent in central
Idaho (Musil et al. 1993, p. 88) to greater
than 45 percent in north-central Utah
(Baxter et al. 2013, p. 809) and 62.4
percent in northeastern California (Bell
and George 2012, p. 373). The efficacy
of translocation efforts have been
questioned because translocation
success, as measured by persistence of
reintroduced populations or increases of
extant populations, has been low (Reese
and Connelly 1997, pp. 235–238).
However, more recent attempts have
been successful (Alberta Environment
and Sustainable Resource Development
2014, p. 6; Baxter et al. 2006, p. 182).
When translocation protocols are
followed, translocated female sagegrouse survive just as well as resident
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individuals and quickly integrate into
the local population (Bell and George
2012, p. 373). Sage-grouse translocated
into the Columbia Basin in Washington
(MZ VI) have generally survived (White
2013, p. 9; Schroeder et al. 2014, pp. 8,
17, 21). Translocations will likely
continue at similar rates, and there is no
evidence that the removal of sage-grouse
from source populations has caused
declines in abundance.
In summary, although research or
monitoring of sage-grouse could
potentially affect individuals, the best
available information does not indicate
that adverse impacts are occurring at the
population level. Information gained
through these methods has directly
benefited the species. In addition, while
translocations have variable success
rates, the best available information
does not indicate that the translocations
affect the populations from which the
birds were removed. Although sagegrouse are intensely studied and
monitored, there is no evidence to
indicate that sage-grouse use for
scientific purposes is affecting the
species locally or rangewide.
Contaminants
In 2010, we determined that
contaminants were not a threat to the
sage-grouse (75 FR 13910, March 23,
2010, pp.13982–13984). Sage-grouse
exposed to contaminants may become
sick or die (Factor E), and contaminants
may reduce or remove sage-grouse
habitats (Factor A). Types of
contaminants that potentially affect
sage-grouse include but are not limited
to pesticides, products from mining and
energy development, human waste, fire
retardants, and airborne pollutants from
roads, vehicles, and other machinery
(Beck and Mitchell 2000, p. 997;
Olsgard et al. 2009, p. 178; Hansen et al.
2011, p. 593; Christiansen and Tate
2011, p. 125). Contaminants may be
intentionally introduced into sagegrouse habitats to improve conditions
for crops and livestock, extract
nonrenewable and nuclear energy
resources, construct infrastructure, and
manage wildfires (Larson et al. 1999, p.
115; Gibbons et al. 2015, p. 105). Spills
or leaks along pipelines, highways,
roads, and railroads can also
unintentionally release contaminants
into sage-grouse habitats.
In the past, pesticides were used to
remove sagebrush, other unwanted
woody shrubs, invasive plants, and
nuisance insects in sage-grouse habitats
in order to improve conditions for
agricultural crops and livestock
(Connelly et al. 2004, p. 7–28; Beck et
al. 2012, p. 445). Exposure to pesticides
and herbicides can kill sage-grouse,
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cause abnormal behavior, or degrade
sagebrush habitat (Blus and Connelly
1998, p. 23; Christiansen and Tate 2011,
p. 125; Mineau and Palmer 2013, p. 20;
Gibbons et al. 2015, p. 105). However,
Federal and State regulations to protect
air and water quality and ban certain
pesticides have likely reduced
applications in sagebrush habitats.
Generally, pesticides and herbicides are
now used to improve sagebrush habitats
for native wildlife rather than for
livestock (Beck et al. 2012, p. 446), and
properly applied pesticides should not
poison sage-grouse (Call and Maser
1985, p. 15; APHIS 2002, p. 10).
Furthermore, light applications of some
herbicides may benefit sage-grouse by
decreasing the shrub canopy and
increasing the cover of grasses and forbs
that are important to sage-grouse during
the nesting and brood-rearing periods
(Crawford et al. 2004, p. 2). Therefore,
pesticides do not likely affect more than
individual sage-grouse.
Nonrenewable energy development
and chemical spills could expose sagegrouse to contaminants, such as oil, gas,
and waste products. Sage-grouse may
encounter harmful radiation, metals,
minerals, or contaminated fluids and
waste released by nuclear facilities,
nonrenewable energy developments,
and mines (Ramirez and Rogers 2002,
pp. 434–435; Beyer et al. 2004, p. 116;
Hansen et al. 2011, p. 593). Although
nonrenewable energy development can
expose sage-grouse to contaminants,
there is only one documented case of a
dead, oil-covered sage-grouse
discovered in a wastewater pit near an
oil and gas well (Domenici 2008,
USFWS, pers. comm.). Deaths or injury
from wastewater pits are likely rare as
sage-grouse typically do not require free
water (Schroeder et al. 1999, p. 6) and
the intense noise, activity, and lack of
vegetative cover around the pits likely
deter sage-grouse. Therefore,
contaminants released from
nonrenewable and chemical spills are
not likely to affect more than individual
sage-grouse.
Conservation Efforts
The risk of exposure to contaminants
is often related to anthropogenic
activities that also present potential
impacts to sage-grouse, such as
nonrenewable energy development and
mining, as discussed in other sections of
this finding. Any conservation measures
that minimize the exposure of sagegrouse to those activities also minimize
the risk of exposure to contaminants.
Regulatory measures provided by the
Federal Plans and the Wyoming Plan
limit new development within
important sage-grouse habitat, thus
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potentially reducing the risk of
contaminant exposure in those areas
(see Nonrenewable Energy, and Mining).
Based on previous Federal plans, we
expect these regulatory mechanisms to
be implemented for the next 20 to 30
years.
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Summary of Contaminants
While potential exposure to
contaminants occurs across the species’
range, the best available information
indicates that killing or injury of birds
is rare and has not had population-level
impacts. Regulatory mechanisms that
substantially reduce new energy
development and mining in important
habitats further reduce the potential for
impacts to sage-grouse. For a detailed
discussion of conservation measure
implementation and effectiveness, see
Sagebrush Landscape Conservation
Planning.
Military Activity
In 2010, we did not identify military
activity as an impact to the species.
Since 2010, we have become aware of
several military facilities that overlap to
varying degrees with the occupied range
of sage-grouse and which have
confirmed sage-grouse presence.
Military installations in Idaho, Montana,
Nevada, Utah, Washington, and
Wyoming encompass less than 1 percent
of the currently estimated sage-grouse
range. With the exception of YTC, most
of the installations have little habitat or
sage-grouse on the property. The YTC
contains one of the two sage-grouse
populations in MZ VI (Stinson and
Schroeder 2014, p. 3), and was
designated as a PAC in the COT Report
(USFWS 2013, p. 39).
Military training and testing activities
have the potential to negatively impact
sage-grouse (Factor E) and their habitats.
Training activities can ignite wildfires
resulting in habitat loss and
fragmentation (Factor A). This issue has
been a particular concern in MZ VI,
where approximately one quarter of the
remaining sage-grouse in the MZ are
located on YTC (Stinson and Schroeder
2013, p. 3). In addition to impacts from
wildfire, habitat can be degraded by
cross-country maneuvers with military
vehicles if they crush vegetation,
compact soil, or introduce invasive
plants (Stinson and Schroeder 2014, p.
3). These kinds of impacts are limited,
because the levels of military surface
training occurring across the sage-grouse
range are limited.
Compared to surface training, the
military manages more extensive
sections of the sage-grouse occupied
range as Special Use Airspace for both
testing and training. Military training
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airspace occurs over portions of all MZs.
Recent research has demonstrated that
sage-grouse are sensitive to noise
(Blickley et al. 2012, p. 467); however,
this study did not examine aircraft noise
(Blickley et al. 2012, entire). The
behavioral response of sage-grouse to
overflight noise has not been examined.
Potential impacts include increased
detectability by predators and
disruption of breeding and nesting
behavior if sage-grouse repeatedly flush
in response to the noise (Blickley et al.
2012, pp. 467–470).
The U.S. military must balance its
role of public land steward with its
primary mission of maintaining a welltrained, combat-ready fighting force.
The Sikes Act (16 U.S.C. 670a–670f, as
amended), enacted in 1960 with
subsequent amendments, provides for
cooperation between the DoD and DOI
for planning, developing, and
maintaining fish and wildlife resources
on military lands (see Regulatory
Mechanisms, below). The Sikes Act
applies to Federal land under DoD
control and requires military services to
establish Integrated Natural Resources
Management Plans (INRMPs) to
conserve natural resources for their
military installations. Through
installation-specific INRMPs, developed
in cooperation with the Service and
State fish and wildlife agencies, the
military has implemented conservation
and mitigation actions for sage-grouse.
The YTC continues to manage habitat
in Washington that supports one of two
populations of sage-grouse in the State.
Management of sage-grouse and its
habitat at YTC is described in the
Western Sage-Grouse Management Plan
(Livingston 1998, entire), which is
incorporated in the Cultural and Natural
Resource Management Plan (CNRMP)
(DoD 2002, entire). The CNRMP
specifies management prescriptions and
actions for sage-grouse and their habitat,
including identifying conservation
objectives and measures for habitat
quantity and quality necessary for
maintaining a sage-grouse population at
or above the 10-year average of 200
birds. Direct protection of sage-grouse
and their habitat is done through timing
and area restrictions, including air space
restrictions. Vegetation restoration of
sagebrush ecosystems is required to
address habitat impacted by wildfire
and military training activities. Wildfire
protection measures are required to
prevent, contain, and rapidly extinguish
wildfires. Monitoring of sage-grouse and
their habitats, including monitoring of
habitat restoration activities, is
conducted within YTC jurisdictional
boundaries.
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In 2011, additional measures were
implemented to protect sage-grouse on
YTC. The Fort Lewis Army Growth and
Force Structure Realignment Record of
Decision’s realigned sage-grouse
protection area (SGPA) boundaries to
incorporate new sage-grouse habitat use
information and updated habitat
management objectives (DoD 2011,
entire). As a result, all but one active lek
on the installation are protected. In
addition, vegetation management of five
primary containment areas within
SGPAs was changed to fit with wildfire
management objectives; flight
restrictions were revised to cover newly
proposed SGPAs; WNv surveillance and
control was increased; and construction
of forb greenhouse facilities was
proposed for use in habitat restoration
projects. The Army is currently
updating the YTC resource management
plan to reflect these improved sagegrouse conservation measures.
Overall, military installations cover
less than 1 percent of the species’
occupied range, and most installations
have little or no sage-grouse habitat on
or near their property. The YTC is the
only installation where impacts to sagegrouse are a potential concern, in part
because two of the four populations in
MZ VI occur on that installation. The
CNRMP has been effective in
minimizing impacts to these
populations, and its implementation is
expected to continue into the future.
Based on studies of noise impacts from
others activities, it is possible that
overflight noise could affect sage-grouse,
but no research has been done to know
if this impact actually occurs and any
assessment of potential impacts would
be speculative.
Small Populations
In 2010, we determined that small
population size could result in
extirpation of some populations, but
was not a threat to sage-grouse
rangewide (75 FR 13910, March 23,
2010, p. 13985). As summarized below,
although small population size likely
places some populations at risk of
extirpation, sage-grouse is a widely
distributed species with large,
interconnected populations at the core
of the range (USFWS 2013, pp. 16–29
and Appendix A). As discussed below,
we again find that small population size
is not a rangewide threat to the species,
now or in the future.
Overall, small, isolated populations
are more susceptible to impacts and
relatively more vulnerable to extinction
due to potential losses of genetic
diversity, demographic and
environmental fluctuations, and
susceptibility to environmental
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population size (Figure 9 and Table 14).
These small populations (Table 14) may
lack connectivity to other habitats and
populations, and may have experienced
negative population impacts from other
stressors, such as WNv outbreaks, recent
wildfire, habitat loss, and habitat
fragmentation (USFWS 2014b). These
populations may be at increased risk of
extirpation due to their isolation, low
population numbers, and continued
impacts from natural and human-caused
sources (Pimm et al. 1988, p. 757).
Further, these small populations may be
at risk from loss of genetic diversity. For
example, populations in Jackson Hole
and Gros Ventre in Wyoming and
southeastern Montana were genetically
isolated with reduced genetic diversity
compared to nearby populations
(Schulwitz et al. 2014, p. 567). Sagegrouse populations in Canada (MZ I) are
also small, with less than 100 sagegrouse counted in 2012 (Alberta
Environment and Sustainable Resource
Development 2013, p. 8). Some of the
small populations have already been
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estimated below minimum population
values (Garton et al. 2011, entire;
WAFWA 2015, entire), suggesting their
ability to persist long term may have
already been compromised if that value
is correct.
Although small, some of the
identified sage-grouse populations may
not have experienced declines in
genetic diversity. For example, small
sage-grouse populations in northern
Montana may have a sufficient number
of dispersing sage-grouse to maintain
genetic diversity. Additionally, despite
population declines and habitat loss,
sage-grouse populations occupying
fragmented landscapes at the northern
extent of the species’ range (Bush et al.
2011, p. 539) and in a peripheral
population in northeastern California
(Davis et al. in press) exhibited high
genetic diversity with no evidence that
these populations were genetically
depressed. However, increased habitat
fragmentation could cause demographic
declines in these small, peripheral
populations (Bush et al. 2011, p. 539).
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catastrophes (Pimm et al. 1988, p. 757;
Frankham and Ralls 1998, p. 442). As
population size decreases, a
population’s susceptibility to adverse
impacts and its risk of extinction can
increase. In general, the minimum
population size needed to sustain the
evolutionary potential of a species has
been estimated to be approximately 500
to 5,000 adult individuals so that the
population retains sufficient genetic
diversity needed to avoid the
detrimental effects of inbreeding (Traill
et al. 2010, p. 32). Although we know
of no published estimates of minimum
population sizes in sage-grouse, up to
5,000 individual sage-grouse may be
necessary to maintain an effective
population size of 500 birds based on
individual male breeding success,
variation in reproductive success of
males that do breed, and the survival
rate of juvenile birds (Aldridge and
Brigham 2003, p. 30; 75 FR 13910,
March 23, 2010, p. 13985).
A number of sage-grouse populations
across the species’ range have been
identified as at risk due to their small
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TABLE 14—SAGE-GROUSE POPULATIONS THAT HAVE BEEN IDENTIFIED AS SMALL AND/OR ISOLATED
[USFWS 2013, pp. 16–29]
Population ID
No.
Management zone
I .................................................................................................
II ................................................................................................
III ...............................................................................................
3
6
11
13
14
21
22
23
24
26
30
27
1 28 1 28
IV ...............................................................................................
7
10
35
36
37
31
33
38
39
40
41
15
16
V ................................................................................................
VI ...............................................................................................
VII ..............................................................................................
Population name (state)
Dakotas (ND/SD).
Jackson Hole (WY).
Laramie (CO/WY).
Middle Park (CO).
Eagle-South Routt (CO).
Strawberry Valley (UT).
Carbon (UT).
Sheeprock Mountains (UT).
Parker Mountain & Emery (UT).
Bald Hills (UT).
Northwest Interior (NV).
Quinn Canyon Range (NV).
Ibapah (UT; portion of the Southern Great Basin).
Hamlin Valley (UT; portion of the Southern Great Basin).
Belt Mountains (MT).
East Central (ID).
Sawtooth (ID).
Weiser (ID).
Baker (OR).
Warm Springs Valley (NV).
Klamath (OR/CA).
Yakama Indian Nation (WA).
Yakima Training Center (WA).
Crab Creek (WA).
Moses Coulee (WA).
Meeker-White River (CO).
Parachute-Piceance-Roan Basin (CO).
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1 For the purposes of the status review, the Ibapah (UT) and Hamlin Valley (UT) populations were joined with the rest of the southern Great
Basin population.
As summarized above, the potential
loss of the small, Columbia Basin
populations in Washington (MZ VI),
which contain approximately 0.6
percent of the estimated rangewide
abundance (Doherty et al. 2015, entire),
would not represent a significant loss
for the status of the sage-grouse as a
whole (See Columbia Basin Population
section). However, the four populations
in MZ VI are identified above as being
at risk due to small population size and
are reliant on management actions, such
as translocations, to maintain the
population size and its genetic diversity.
These populations also face potential
habitat loss and fragmentation from
agricultural conversion (See
Agricultural Conversion section above)
and military training activities (See
Military Activities section above).
Connectivity between these populations
is also very limited (Crist et al. 2015, p.
12). Although the populations in MZ VI
have declined from historical levels, are
exposed to a variety of potential
impacts, and have limited connectivity,
population trends in MZ VI are
currently stable (WAFWA 2015, pp. 40–
41), likely due to active management
and translocations. Further, the State of
Washington has protected sage-grouse
as a State threatened species since 1998
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and developed a recovery program
(Stinson et al. 2004, entire).
Although some populations of sagegrouse are small and/or isolated (Table
14), with some at risk of extirpation, the
remaining populations of sage-grouse
are well distributed across the overall
range of the species (see Distribution
and Population Abundance and Trends,
above). The number and size of these
more robust populations provide
redundancy for the sage-grouse, and the
wide distribution of the populations
across the species’ overall range
provides resiliency. Additionally, the
rangewide distribution of the larger
populations provides representation, by
capturing the variation of habitat and
climatic conditions across the species’
range such that the loss of any of the
small populations will not result in the
loss of ecological diversity. These small
or isolated populations represent only a
small percentage of the overall species’
range, and the relative population index
and their potential loss may affect
connectivity (Crist et al. 2015, p, 18) but
is unlikely to put the entire species at
risk now or in the future.
Regulatory Mechanisms
In the 2010 finding, we concluded
that existing regulatory mechanisms
were inadequate to protect the species
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(75 FR 13910, March 23, 2010, p.13982).
Since 2010, there have been substantial
changes in regulatory protections for
sage-grouse and their habitats (Factor
D). The most significant change is the
Federal Plans and the Montana,
Wyoming, and Oregon State Plans,
which collectively manage
approximately 90 percent of the
breeding habitat (See Sagebrush
Landscape Conservation Planning
section above). Combined, these efforts
have substantially improved the
regulatory mechanisms across the range
of the sage-grouse since the 2010
finding, such that we now determine
that existing regulatory mechanisms
adequately address effects to the species
and its habitats (Factor D). Other
Federal and State laws and local
authorities are discussed below.
Federal Laws
In addition to the Federal Plans, other
Federal laws provide regulatory
authorities to Federal agencies to
address sage-grouse and habitat
management for the species.
Other BLM Authorities—The Mineral
Leasing Act of 1920, as amended, and
the Mineral Leasing Act for Acquired
Lands of 1947, as amended, gives the
BLM responsibility for oil and gas
leasing on BLM, USFS, and other
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Federal lands, as well as private lands
where mineral rights have been retained
by the Federal Government. The
Geothermal Steam Act of 1970, as
amended (84 Stat, 1566; 30 U.S.C. 1001–
1025), provides the Secretary of the
Interior with the authority to lease
public lands and other Federal lands,
including USFS lands, for geothermal
exploration and development in an
environmentally sound manner. This
leasing authority has been delegated to
the BLM. The BLM implements the
Mineral Leasing Act through 43 CFR
3200.
The General Mining Law of 1872, as
amended, opened the public lands of
the United States to mineral acquisition
by the location and maintenance of
mining claims. Mineral deposits subject
to acquisition in this manner are
generally referred to as locatable
minerals. Locatable minerals include
metallic minerals (e.g., gold, silver, lead,
copper, zinc, and nickel), nonmetallic
minerals (e.g., fluorspar, mica, gypsum,
tantalum, heavy minerals in placer
form, and gemstones), and certain
uncommon variety minerals. Under the
new Federal Plans, locatable minerals
have been recommended for withdrawal
in the SFAs. Valid existing rights would
not be impacted by these recommended
withdrawals. Withdrawals on BLM and
USFS lands are processed under the
BLM’s withdrawal regulations (43 CFR
2310) and, if 5,000 acres or more, shall
be subject to the Congressional review
provision (43 U.S.C. 1714(c)).
Other Federal Agencies—Other
Federal Agencies in the DoD, DOE, and
DOI (including the Bureau of Indian
Affairs, the Service, and National Park
Service) are responsible for managing
less than 5 percent of the species’
occupied range (Knick 2011, p. 28).
Regulatory authorities and mechanisms
relevant to these agencies’ management
jurisdictions include the National Park
Service Organic Act (39 Stat. 535; 16
U.S.C. 1, 2, 3, and 4), the National
Wildlife Refuge System Administration
Act (16 U.S.C. 668dd–668ee), and the
Department of the Army’s Integrated
Natural Resources Management Plans
for their facilities within sage-grouse
habitats. Due to the limited amount of
land administered by these agencies, we
have not described them in detail here.
However, most of these agencies do not
manage specifically for sage-grouse on
their lands, except in localized areas
(e.g., specific wildlife refuges,
reservations). A notable exception,
where substantial populations of sagegrouse occur, is the YTC (discussed
above under Military Activity).
The YTC continues to manage habitat
in Washington that supports one of two
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populations of sage-grouse in the State.
As a joint base, YTC is now a subinstallation of the Fort Lewis McChord
Army installation. Management of sagegrouse and its habitat at YTC is dictated
by management direction described in
their Western Sage Grouse Management
Plan (Livingston 1998, entire), which is
tiered to their CNRMP (DoD 2002,
entire), combined with changes
contained in the Fort Lewis Army
Growth and Force Structure
Realignment Record of Decision (DoD
2011, entire) (also known as Grow the
Army). The 2002 CNRMP is currently
being updated into a newer Integrated
Natural Resources Management Plan,
but is not yet final. The Grow the Army
Final Environmental Impact Statement
analyzed the environmental and
socioeconomic impacts of stationing
approximately 5,700 soldiers and their
families at Fort Lewis and additional
aviation, maneuver, and live-fire
training needs at both installations.
The CNRMP specifies management
prescriptions and actions for sagegrouse and their habitat, including
identifying conservation objectives and
measures for habitat quantity and
quality necessary for maintaining a sagegrouse population at or above the 10year average of 200 birds. Direct
protection of sage-grouse and their
habitat (i.e., mating, nesting, and broodrearing) is achieved through timing and
area restrictions, including air space
restrictions. Vegetation restoration of
sagebrush ecosystems is required to
address habitat impacted by wildfire
and military training activities. Wildfire
protection measures are required to
prevent, contain, and rapidly extinguish
wildfires. Monitoring of sage-grouse and
their habitats, including monitoring of
habitat restoration activities, are
conducted within YTC jurisdictional
boundaries. Army participation in sagegrouse recovery planning efforts and
adaptive management through
implementation reviews are also
required.
The Grow the Army Record of
Decision realigned sage-grouse habitat
and core use area protection boundaries
to incorporate new sage-grouse habitat
use information and updated habitat
management objectives. New leks were
incorporated into the management
scheme, SGPAs were reconfigured,
vegetation management of fire primary
containment areas within SGPAs were
changed to fit with wildfire
management objectives, flight
restrictions were revised to cover newly
proposed SGPAs, WNv surveillance and
control was increased, and construction
of forb greenhouse facilities were
proposed for use in habitat restoration
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projects. The SGPAs currently protect
almost all active leks at YTC. The Grow
the Army Record of Decision also
established Army commitment to
updating their Sage-Grouse Management
Plan; participating in sagebrush
ecosystem conservation partnerships to
promote sagebrush ecosystem
conservation, restoration, and protection
from wildfire in and around the PAC;
and establishment of a candidate
conservation agreement with the
Service.
Coal mining is regulated by the
provisions identified in the Surface
Mining Control and Reclamation Act of
1977 (SMCRA), which is implemented
by the Office of Surface Mining and
Reclamation. This Federal law requires
consideration of fish and wildlife
resource information for the permit and
adjacent area, including species listed
under the Endangered Species Act,
along with a detailed analysis by the
permittee on how impacts will be
minimized or avoided. SMCRA also
requires that activities permitted under
this law cannot result in the jeopardy of
a listed species, or the destruction of
adverse modification of designated
critical habitat. Species-specific
standards and procedures must also be
developed if necessary to protect listed
species and their habitats (USFWS
1996). Permittees must also include a
plan for enhancement of fish and
wildlife resources on the permit area.
While SMCRA does not specifically
address candidate species, protection
must be given to all potential future
listed species that may be affected by
coal mining activities (USFWS 1996, p.
4).
The OSM has delegated the regulatory
authority for implementing SMCRA to
five States within the range of sagegrouse: Wyoming, Montana, Utah,
Colorado, and North Dakota. Sagegrouse, therefore, must be considered in
the implementation of SMCRA, and coal
mining, in those States. The
implementation agency must consider
impacts on fish and wildlife, including
sage-grouse. Sage-grouse are also
typically addressed in all States within
the species’ range during the
development of coal resources simply
due to its status as a State trust resource.
State Mining Regulations
The Utah Executive Order provides a
regulatory mechanism to minimize
potential effects from mining to sagegrouse habitat on State and private
lands (Utah EO 2015–002). The Utah
Executive Order requires the Utah
Division of Oil, Gas and Mining to
coordinate with the Utah Division of
Wildlife Resources before issuing
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permits for energy development. The
Executive Order further directs the Utah
Division of Oil, Gas and Mining to
implement recommendations provided
by the Utah Division of Wildlife
Resources that could require avoidance
and minimization measures on State
and private lands consistent with the
conservation plan. However, these
measures are subject to the statutory
requirements to protect rights on private
property and avoid waste of the mineral
resource.
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State General Wildlife Protection Laws
All States across the range of sagegrouse have laws and regulations that
provide for the general protection,
conservation, propagation, management,
and use of wildlife and that regulate the
taking of wildlife, including sage-grouse
(see Connelly et al. 2004, pp. 2–2
through 2–11). While these statutes
limit direct taking of sage-grouse, none
provide specific and binding protections
for sage-grouse habitat.
Many States have laws to list and
protect threatened and endangered
species, but these laws vary in their
statutory provisions to protect species
from threats (George and Snape 2010,
pp. 345–346). Sage-grouse are listed as
a threatened species by the State of
Washington under the authorities of
RCW 77.12.020. Threatened status in
Washington means that a species cannot
be hunted (WAC 2015, 232–12–011) and
also requires the State to develop a
recovery plan, which must include
target population objectives, criteria for
reclassification, an implementation
plan, and a monitoring plan (WAC 2015,
232–12–297). However, implementation
of recovery plan actions is discretionary
and subject to funding.
Several States list the sage-grouse as
a ‘‘species of concern,’’ (e.g., Montana)
or ‘‘species of special concern (e.g.,
California, South Dakota), but these are
administrative designations and do not
afford any substantive regulatory
protections.
State Sage-Grouse Hunting Regulations
Sage-grouse hunting is regulated by
State wildlife agencies. Hunting seasons
are reviewed annually, and States can
adjust limits on updated abundance
information and adaptive management
criteria established in State wildlife
management plans. States maintain
flexibility in hunting regulations
through emergency closures or season
changes in response to unexpected
events that affect local populations. As
discussed in more detail under the
Hunting section, 8 of the 11 States with
sage-grouse had open hunting seasons
for sage-grouse in 2014, with hunting
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prohibited in Washington, South
Dakota, North Dakota, and Canada
(Aldridge and Brigham 2003, p. 25;
Connelly et al. 2004, p. 6–3; Stinson et
al. 2004, p. 1). In 2014, Montana closed
hunting of sage-grouse across much of
the State and reduced the length of the
hunting season to respond to population
declines (Montana Fish, Wildlife and
Parks 2014). South Dakota closed its
hunting season for sage-grouse in 2013
and 2014. As evidenced by recent
changes, States can and have adopted
more conservative hunting seasons
based on new information and
population levels. Rangewide, hunting
seasons are more conservative than in
the past, which has resulted in a large
reduction in sage-grouse hunting
mortality. Therefore, hunting
regulations are adequate in managing
hunting impacts to sage-grouse.
State Noxious Weed Laws
Some State regulations require that
landowners control noxious weeds on
their property, but designations of
noxious weeds and the development of
noxious weed lists vary by State. For
example, only five States list
medusahead as a noxious, regulated
weed, but the grass is problematic in at
least two additional States. Similarly,
despite the proliferation of cheatgrass
across the range of the sage-grouse,
Colorado is the only western State that
recognizes the grass as a noxious weed
(USDA 2015). Therefore, State
regulations that address noxious weeds
may help reduce impacts to sage-grouse
in local areas, but large-scale control of
the most problematic invasive plants is
currently unfeasible and uncoordinated
(Pyke 2011, p. 543; Ielmini et al. 2015,
pp. 2–3). While State noxious weed
laws are not effectively addressing
potential impacts from invasive plants,
measures provided by the Federal and
State plans, as discussed above, have
substantially reduced the potential
threat of invasive plants (see Wildfire
and Invasive Plants).
Canadian Federal and Provincial Laws
and Regulations
Sage-grouse were first listed in
Canada in 1997 as threatened by the
Committee on the Status of Endangered
Wildlife in Canada because of very
small and declining populations in
Saskatchewan and Alberta. The species’
status was changed to endangered in
1998, and sage-grouse are now federally
protected in Canada as an endangered
species under schedule 1 of the Species
at Risk Act (SARA). This designation
protects sage-grouse and their nests and
eggs on Federal lands and prohibits
unauthorized killing, harming,
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harassing, capturing, taking, possessing,
collecting, buying, selling, or trading of
individuals of the species (SARA 2002,
p. 17). SARA also provides for
identification of habitat on Federal
lands that is critical to the survival and
recovery of species designated as
threatened or endangered, and the
Canadian Government is responsible for
ensuring that critical habitat is
protected. Although voluntary measures
are the preferred method for protecting
critical habitat, SARA provides the
means for the government to promulgate
regulations to ensure that critical habitat
is not destroyed (SARA 2002, pp. 27–
30). However, at this time, no such
regulations have been developed for
sage-grouse critical habitat.
On December 4, 2013, the Canadian
Government issued an Emergency Order
for the protection of the sage-grouse
under SARA (CWS 2013, entire). The
Emergency Order prohibits construction
of new tall (greater than 1.2 m [3.9 ft])
structures, new roads, and new fences
and destruction of native plants, and
requires nightly noise reduction in April
and May (CWS 2013, p. 112). These
restrictions apply to critical habitat
identified on 1,672 km2 (646 mi2) of
Federal and provincial crown lands in
southeastern Alberta and southwestern
Saskatchewan (CWS 2013, p. 111).
In 2014, the Canadian Government
finalized an amended recovery strategy
for sage-grouse (Environment Canada
2014, entire). In addition to updating
the 2008 document to reflect the most
recent scientific information about the
status of sage-grouse in Canada and
establishing population objectives, the
2014 amended strategy completed the
identification of critical habitat for the
species in accordance with SARA
(Environment Canada 2014, p. 23). The
2008 recovery strategy did not identify
critical habitat, citing a lack of
information (Lungle and Pruss 2008, p.
27). In 2009, a replacement for the
critical habitat section of the strategy
identified ‘‘necessary, but not
sufficient’’ critical habitat in breeding,
nesting, and brood-rearing habitat for
sage-grouse in Alberta and
Saskatchewan (Lungle and Pruss 2009,
p. 2) for a total of 165 km2 (63 mi2). The
amended recovery strategy identifies
2,812 km2 (1,086 mi2) of year-round
habitat and 12.5 km2 (4.8 mi2) of lek
critical habitat in Saskatchewan and
Alberta (Environment Canada 2014, pp.
23–30). Therefore, as a result of the
amended recovery strategy and the
Emergency Order combined, a total of
3,354 km2 (1,295 mi2) of Federal and
provincial crown lands in Saskatchewan
and Alberta, including Grasslands
National Park in Saskatchewan, is
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identified as critical habitat for sagegrouse (Environment Canada 2014, p. iv;
Parks Canada 2015, p. 693). The
amended recovery strategy also includes
numerous nonregulatory actions for the
protection of critical habitat and the
recovery and conservation of sagegrouse.
The sage-grouse is listed as
endangered at the provincial level in
Alberta and Saskatchewan, affording
additional protections to the species on
provincial and private lands.
Recreational hunting has been closed in
Saskatchewan since at least the 1930s
(Weiss and Prieto 2014, p. 1), and in
Alberta since 1995 (Alberta
Environment and Sustainable Resource
Development 2013, p. 1). In
Saskatchewan, sage-grouse were
designated as threatened in 1987 under
The Wildlife Regulations (Saskatchewan
1981, entire), and as endangered in 1999
under the province’s Wildlife Act of
1998 (Weiss and Prieto 2014, pp. 1, 13).
The Wildlife Act states that, without a
license, no one may ‘‘kill, injure,
possess, disturb, take, capture, harvest,
genetically manipulate or interfere with
or attempt to do any of those things . . .
export or cause to be exported from
Saskatchewan . . . [or] traffic in’’
designated species (Saskatchewan 1998,
p. 20). Sage-grouse habitat in
Saskatchewan is protected under The
Wildlife Habitat Protection Act, which
prohibits sage-grouse habitat from being
sold or cultivated (Saskatchewan 1983,
p. 4). Restrictions put in place under the
Wildlife Act formerly prohibited
development within 500 m (1,640 ft.) of
leks and prohibited construction
activities within 1,000 m (3,281 ft.) of
leks between March 15 and May 15
(Aldridge and Brigham 2003, p. 32). In
our 2010 finding, we deemed these
buffers inadequate to protect sagegrouse from disturbance. These activity
restrictions were revised in 2012 to
increase lek buffers to 3,200 m (10,499
ft.); include 1,000-m (3,281-ft) buffers
between development and lekking,
brood-rearing, and wintering habitat;
and make these restrictions apply yearround instead of only during the
breeding season (Environment Canada
2014, p. 16; Weiss and Prieto 2014, p.
13).
Alberta’s Wildlife Act requires that an
Endangered Species Committee provide
recommendations to the provincial
Minister regarding designation of
endangered species in Alberta and
development of recovery plans, which
may include population goals,
conservation strategies, and the
identification of critical habitat (Alberta
Wildlife Act 2000, p. 13). The law states
that ‘‘[a] person shall not willfully
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molest, disturb or destroy a house, nest
or den of prescribed wildlife’’ (Alberta
Wildlife Act 2000, p. 25), but does not
require development and
implementation of recovery plans for
species designated as endangered.
However, Alberta Environment and
Sustainable Resource Development has
designated more than 3,880 km2 (1,500
mi2) as conservation habitat for sagegrouse, including areas adjacent outside
of federally identified critical habitat
(Nicholson, Alberta Environment and
Sustainable Resource Department, 2015,
pers. comm.). All known active and
inactive leks are protected by 12-ha (30ac) Protective Notations designated by
the Province, and Protective Notations
covering the range of sage-grouse in
Alberta prohibit public land sales and
potentially restrict surface development
(Alberta Environment and Sustainable
Resource Development 2013, pp. 19–
20). In addition, in 2013 the Alberta
Department of Energy restricted all new
surface access for oil and gas
development through subsurface
addenda to leases or other drilling rights
accorded to private businesses
(Nicholson, Alberta Environment and
Sustainable Resource Department, 2015,
pers. comm.). Aside from Protective
Notations, regulation of new surface
access, and the protection of individual
sage-grouse by provincial law, efforts to
recover the species and protect its
habitat in Alberta (e.g., Alberta
Environment and Sustainable Resource
Development 2013, pp. 18–21) are
nonregulatory.
Regulatory Mechanisms Summary
In 2010, we concluded that regulatory
mechanisms in place at that time were
not adequate to reduce the threats to the
species and its habitat, and that the
absence of adequate regulatory
mechanisms was a threat to the species,
then and into the foreseeable future.
Since then, there have been major
changes in the regulatory mechanisms
that avoid or minimize impacts to sagegrouse and their habitats. Most
importantly, BLM and USFS adopted
amended or revised Federal Plans to
conserve sage-grouse over more than
half of its occupied range (See Federal
Plans section above). The Federal Plans
include provisions to address activities
that could occur in sage-grouse habitats
and threats identified in 2010 as having
inadequate regulatory measures
including: Oil and gas development,
wildfire and invasive plants,
infrastructure, and improper livestock
grazing. In addition, the Federal Plans
include provisions to avoid or minimize
impacts authorized in sage-grouse
habitats for monitoring, adaptive
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management, limitations on
anthropogenic disturbance, and
requirements for mitigation. The Federal
Plans are the foundation of land-use
management on BLM and USFS
managed lands. We are certain that the
Federal Plans will be implemented and
that the measures included are based on
the best scientific information and are
effective at avoiding and minimizing
impacts to the species and its habitat.
Since 2010, of the 11 States within the
occupied range of the sage-grouse, 10
have revised and adopted grouse
conservation plans and regulatory
mechanisms to address threats to the
species and its habitat identified in
2010. State sage-grouse conservation
plans in Wyoming, Montana, and
Oregon contain regulatory mechanisms
that minimize impacts to the species
and its habitat. Since 2008, the
Wyoming Plan has effectively
minimized impacts within core habitats,
protecting the highest density areas for
the species within the State. The
Montana and Oregon regulatory
mechanisms include proven
conservation measures, including
disturbance caps, density restrictions,
and lek buffers, to minimize disturbance
to important habitats. In combination,
the Federal and three State plans, cover
90 percent of the sage-grouse breeding
habitat. Taken together, these efforts
have substantially altered the regulatory
landscape across the range of sagegrouse since the 2010 finding, such that
we now determine that existing
regulatory mechanisms adequately
address effects to the species and its
habitat (Factor D).
Other Conservation Plans
Since 2010, all States except
California have drafted, revised,
finalized, or implemented conservation
plans for the sage-grouse to address
threats to the sage-grouse. These plans
take different approaches, but in
general, they identify important
conservation objectives and provide
mechanisms to incentivize
conservation. We anticipate that state
plans and related efforts will continue
into the future and will strengthen as
implementation continues. In this
section we provide a summary of the
non-regulatory conservation plans (See
Conservation Efforts section above for a
description of the Wyoming, Montana,
and Oregon Plans and the Regulatory
Mechanisms section above for a
description of the Utah Executive
Order).
California
California does not have a State Sagegrouse Conservation Plan. California
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recognizes sage-grouse as a State-species
of special concern that should be
considered during the State’s
environmental review process. The
California Environmental Quality Act
(CEQA) (Public Resources Code sections
21000–21177) requires that State
agencies, local governments, and special
districts consider impacts that their
proposed project may have to species of
concern, including sage-grouse.
Colorado
Colorado has contributed to greater
sage-grouse conservation and research,
working with numerous partners over
the last several decades. This
coordination spans from local and State
levels, to rangewide participation. The
State conservation plan for greater sagegrouse (State of Colorado 2008, entire)
has been implemented since 2008 over
1.5 million ha (approximately 3.7
million ac) across all landownership
types. The plan uses voluntary
conservation strategies to address and
promote the conservation of sage-grouse
in Colorado. It provides guidance to
address impacts to sage-grouse from
habitat fragmentation and conversion,
agriculture, urbanization, conifer
encroachment, recreation,
nonrenewable energy, and other
impacts.
The plan and the State of Colorado
recommend measures to help reduce
impacts from nonrenewable energy
development. Colorado regulations
require that effects to sage-grouse be
considered by the Colorado Oil and Gas
Conservation Commission (COGCC) and
the Colorado Department of
Reclamation and Mining Safety during
their permitting processes. In addition,
Colorado Parks and Wildlife (CPW)
makes recommendations based on the
State’s conservation plan designed to
reduce impacts to greater sage-grouse
from nonrenewable energy development
(State of Colorado 2008, pp. 22, 109,
123, 313, 325–331).
In addition, the State of Colorado
issued an Executive Order (Colorado
E.O. D 2015–004) in May 2015 to
promote the conservation of greater
sage-grouse and further implement the
2008 conservation plan. This order
enhances communication and
coordination among State agencies,
including CPW, the State Land Board,
and COGCC, as well as designating a
single point of contact for external
greater sage-grouse communications.
Under the order, the COGCC will
evaluate its existing wildlife siting rules
for potential improvement and develop
a comprehensive tracking system for
development in sensitive wildlife
habitat. Lastly, the order also prioritizes
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the completion of the Colorado Habitat
Exchange, a voluntary compensatory
mitigation tool for impacts to the
species.
Dakotas
North and South Dakota finalized
State management plans that
emphasized working cooperatively with
private landowners due to the relatively
large acreages of private lands in those
States. Both States have provided
assistance working through the Sage
Grouse Initiative under NRCS and are
continuing sage-grouse research efforts
to prioritize the best sage steppe habitat
for conservation, expand core areas, and
further their understanding of WNv.
Both States have closed sage-grouse
hunting seasons.
South Dakota has provided additional
firefighting resources and in the past has
restricted off-road travel if drought
conditions may elevate fire danger
during hunting seasons (State of South
Dakota 2014, p. 23). Further, the South
Dakota Department of Game, Fish and
Parks works with the South Dakota
School and Public Lands Office, Public
Utilities Commission, and the
Department of Environment and Natural
Resources to provide comments and
input if oil and gas development, wind
development, or other proposed projects
may impact sage-grouse core areas (State
of South Dakota 2014, pp. 23, 24).
Idaho
Earlier this year, the Governor signed
an Executive Order adopting Idaho’s
Sage-grouse Management Plan, which
focuses on the management of invasive
vegetation, fuels and wildfire (Idaho
E.O. 2015–04). The plan provides
wildfire suppression guidance to
complement Secretarial Order 3336, and
commits the State to assist with fire
rehabilitation and with implementation
of fuel breaks, weed control, and conifer
removal in mixed State and Federal
ownerships. Under the plan, Idaho
assumes responsibility for development,
coordination, and equipping and
training for Rangeland Fire Protection
Associations to provide rapid response
to sagebrush fires. In FY 2016 the Idaho
legislature appropriated over $500,000
for various sage-grouse conservation
efforts of which $120,000 was dedicated
to better support RFPA implementation
and effectiveness (S–1128). In Idaho,
RFPAs currently account for
approximately 230 firefighters in 6 areas
in Idaho resulting in protection of
approximately 5.7 million acres within
greater sage-grouse habitat. An
additional 4 RFPAs are in development
within greater sage-grouse habitat.
Idaho’s Governor directed that all State
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agencies, to the extent consistent with
existing State law, apply the elements of
Idaho’s Sage-grouse Plan to all land
ownerships across the State (Idaho E.O.
2015–04).
Nevada
The State of Nevada has implemented
several measures to conserve habitat in
the State. On September 26, 2008, the
Governor of Nevada signed Executive
Order 2008–10–29 calling for the
preservation and protection of sagegrouse habitat in the State of Nevada.
The Executive Order directs the Nevada
Department of Wildlife (NDOW) to work
with State and Federal agencies and the
interested public to implement Nevada’s
conservation plan for sage-grouse
(Nevada E.O. 2008–10–29). The
Executive Order also directs other State
agencies to coordinate with the NDOW
in these efforts. Further, the Nevada
Conservation Credit System establishes
a mitigation market to facilitate
exchanges between credit sellers and
buyers. In November 2012, the Governor
signed Executive Order 2012–09
establishing the Sagebrush Ecosystem
Council, a multiagency and
multidiscipline group that was tasked
with developing a conservation strategy
for sage-grouse in Nevada. In October
2014, the Sagebrush Ecosystem Council
finalized the Nevada Greater Sagegrouse Conservation Plan (State of
Nevada 2014, entire). The Nevada plan
creates the Conservation Credit System,
which creates financial incentives for
private landowners to conserve sagegrouse habitat for use as compensatory
mitigation. Nevada’s plan requires that
any development that affects greater
sage-grouse habitat in Nevada will need
to acquire credits to compensate for
those effects before the development
proceeds. In addition, on June 23, 2015,
the Governor signed emergency
regulations related to the formation of
Rural Fire Protection Associations
(RFPAs) within the State of Nevada
(NRS 472 per AB 163, sec. 3.5(1) of the
78th Session of the Nevada legislature).
RFPAs, as seen in other States, help
support fire suppression efforts by
adding capacity and resources for fire
suppression.
Utah
Utah issued a final conservation plan
for the sage-grouse on February 14,
2013, and the Governor of Utah’s
Executive Order (Utah E.O. 2015/002)
mandated its implementation on
February 25, 2015. Utah’s Plan and
Executive Order includes mechanisms
aimed at addressing threats to sagegrouse associated with fire, invasive
species, predation, conifer
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encroachment, recreation, energy
development, and the removal of
sagebrush. The Utah Plan applies to all
lands within the State’s 11 Sage-Grouse
Management Areas (SGMAs) across
approximately 3 million ha (7.5 million
ac), which conserves 90 percent of the
State’s greater sage-grouse habitat and
approximately 94 percent of the State’s
population. Many of the conservation
measures in the plan are voluntary and
rely on negotiated incentive-based
covenants, easements, or leases to
achieve conservation on private lands,
School and Institutional Trust
Administration Lands, and local
government lands (See Regulatory
Mechanisms section above for a
discussion of the Utah Executive Order).
In 2014, Utah’s incentive-based
approach, coupled with efforts from
State, Federal, and private partners,
exceeded the Utah conservation plan
objectives, reporting 249,170 acres of
habitat enhancement and restoration
(UDNR 2014, p. 5).
The Utah Plan addresses fire control,
suppression, and rehabilitation by
providing an organizational framework
for partners to prioritize suppression
efforts and fire rehabilitation, and
leverage funding and agency resources
(State of Utah 2013, p. 13). The Utah
Governor’s Executive Order also directs
the Utah Division of Forestry, Fire and
State Lands to prioritize fuels-mitigation
activities and pre-attack planning and
coordination with other Federal and
local fire suppression partners, second
only to the protection of human life and
structures (State of Utah 2015, p. 4).
Furthermore, the Utah Governor’s
Catastrophic Wildfire Reduction
Strategy was completed in 2013,
establishing a Statewide steering
committee and regional working groups
to develop a Statewide risk map that
will include prioritized sage-grouse
habitat areas (UDNR 2014, page 10).
Washington
Sage-grouse are State-listed as
threatened in Washington. The State’s
recovery plan and actions implemented
to date have relied heavily on voluntary
conservation actions, on which the State
and its partners have made progress
(Stinson et al. 2004, entire). For
example, sage-grouse have been
translocated to the Columbia Basin from
Idaho, Oregon, Nevada, and Wyoming to
help supplement and maintain the
Washington population (Livingston et
al. 2006, pp. 2–3; Schroeder et al. 2014,
pp. 8, 14–15).
Finding
As required by the Act, we considered
the five factors in assessing whether the
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sage-grouse is endangered or threatened
throughout all of its range. We
examined the best scientific and
commercial information available
regarding the past, present, and
foreseeable future threats faced by sagegrouse. Foreseeable future describes the
extent to which we can reasonably rely
upon predictions about the future (DOI
2009). In this context, ‘‘reliable’’ does
not mean ‘‘certain’’: It means sufficient
to provide a reasonable degree of
confidence in the prediction. Because
information for each threat may be
reliable for different periods of time,
each threat may have different extents of
foreseeability. The final conclusion may
be a synthesis of this information.
For the purposes of this
determination, we conclude that the
foreseeable future is 20 to 30 years. This
timeframe is based on the time horizons
for which various threats can be reliably
projected into the future. Many of the
analyses on which we have relied, such
as the fire modeling and the period for
climate change predictions, cover a 30year timeframe. Additionally, other
potential threats will be governed by
Federal and State Plans across the most
important habitats as long as these plans
are in place. Based on our assessment of
existing BLM and USFS land use plans,
the typical lifespan is 20 to 30 years
(BLM 2015g). While these plans are in
place, the extent of impacts from energy
development, infrastructure, grazing,
mining, and other regulated activities
will be dictated by stipulations in these
plans. Therefore, we can reliably predict
over 20 to 30 years the extent of impacts
from fire, climate change, and potential
effects to the species and habitat
addressed by the Federal Plans. Beyond
these timeframes is a high degree of
uncertainty, which precludes credible
predictions of the effectiveness of
actions that will be implemented
beyond the planning horizon and how
the species may or may not respond.
Exceeding this timeframe, we have
concluded, goes into the realm of
speculation.
Our regulations direct us to determine
if a species is endangered or threatened
due to any one or a combination of the
five threat factors identified in the Act
(50 CFR 424.11(c)). We consider
cumulative effects to be the potential
threats to the species in totality and
combination; this finding constitutes
our cumulative effects analysis. The
discussions above evaluated the
individual impact of the following
potential threats to the sage-grouse:
Nonrenewable energy development
(Factor A), infrastructure (Factor A),
agricultural conversion (Factor A),
wildfire and invasive plants (Factor A
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and E), improper grazing (Factor A),
free-roaming equids (Factor A), conifer
encroachment (Factor A), mining
(Factor A), renewable energy (Factor A),
predation (Factor C), disease (Factor C),
urbanization (Factor A), recreation
(Factor A), climate change (Factor E),
drought (Factor A), hunting (Factor B),
scientific and educational use (Factor
B), contaminants (Factor A), military
activities (Factor A), and small
populations (Factor E). We also
evaluated the inadequacy of existing
regulatory mechanisms (Factor D). As
discussed above, based on new
information and effective regulatory
mechanisms implemented since the
2010 finding, we determined that none
of these impacts are substantial threats
to the sage-grouse individually.
Additionally, despite past reductions in
occupied range, sage-grouse currently
occupy 56 percent of their historical
range. In this section, we evaluate
whether some or all of these impacts act
cumulatively to increase the overall
scope and magnitude of potential effects
to the sage-grouse now and into the
foreseeable future such that cumulative
effects are a threat to the species.
The sagebrush ecosystem has changed
over time. Prior to the influence of
human settlement, the sage-grouse
inhabited parts of 13 states and 3
Canadian provinces. Before European
settlers converted sagebrush habitats to
croplands and pasturelands in the
1800s, natural events, such as blizzards,
droughts, and large wildfires
historically impacted sage-grouse. With
the arrival of European settlers,
agricultural conversion, urbanization,
energy development, and other
activities increased the loss and
fragmentation of sage-grouse habitats
across the overall range. Due to the
historical loss and fragmentation of
sagebrush habitats, sage-grouse now
occupy approximately 56 percent of
their historical range. Despite historical
losses of occupied range, today the sagegrouse is relatively well-distributed
across portions of 11 states and 2
Canadian provinces. The sagebrush
ecosystem upon which the sage-grouse
depends remains one of the largest,
most widespread ecosystems in the
United States, spanning approximately
70 million ha (173 million ac).
Declines in the extent of the
sagebrush ecosystem and sage-grouse
populations have been a concern for
more than 25 years. Since 1999, we have
reviewed 8 petitions and reviewed the
status of the species 3 times. In our first
evaluation completed in 2005, we found
that listing the sage-grouse was not
warranted because the species occurred
over a large area and potential threats
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were not well defined. In 2010, we
determined that sage-grouse were
warranted for listing due to a long-term
decline in abundance throughout their
range, habitat loss and fragmentation,
and inadequate regulatory mechanisms
to address threats.
The 2010 finding serves as the
baseline for this current review. In the
2010 finding, we concluded that sagegrouse was warranted for listing because
of habitat loss and fragmentation due to
a variety of causes, such as
nonrenewable energy development,
agricultural conversion, wildfire, and
infrastructure and the inadequacy of
regulatory mechanisms to address these
conditions. We acknowledged the
existence of substantial landscape
elements containing high-quality habitat
and abundant sage-grouse, particularly
in southwestern Wyoming and in the
northern Great Basin, but expressed
concern that, without adequate
regulatory mechanisms, habitat loss,
and abundance, declines would
continue (75 FR 13910, March 23, 2010,
pp. 13986–13988). As noted in that
finding, when determining its listing
priority status, we considered the
threats that the sage-grouse faced to be
moderate in magnitude because the
threats did not occur everywhere across
the range, and, where they were
occurring, they were not of uniform
intensity or of such magnitude that the
species required listing immediately to
ensure its continued existence. While
sage-grouse habitat had been lost or
altered in many portions of the species’
range, substantial habitat still remained
to support the species in many areas of
its range (75 FR 13910, March 23, 2010,
pp. 14008–14009).
In the 2010 finding, we identified the
types of conservation actions that would
remediate or ameliorate these threats,
and encouraged land managers and
other interested parties to implement
such measures. In particular, we noted
that the Federal Plans could provide
adequate regulatory mechanisms to
address the threats of nonrenewable and
renewable energy development and
infrastructure if they were amended to
consider sage-grouse conservation needs
(75 FR 13910, March 23, 2010, p.
13982). Further, we recommended
changes in prevention, suppression, and
restoration activities to address threats
from the wildfire and invasive plant
cycle. This current finding describes the
extent to which recent conservation
efforts—particularly the Federal and
State Plans—have addressed the impact
of potential threats and positively
affected the species’ status.
Since 2010, Federal and State
agencies have collaborated on the
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development of landscape-scale
conservation efforts to protect the most
important habitats across the range of
the species (as discussed in detail in
Changes Since the 2010 Finding, above).
The 2013 COT Report outlined where
those most important habitats occurred
(also known as PACs) and identified
them as the areas necessary for species’
resilience, redundancy, and
representation. The COT Report also
provided conservation objectives and
recommended conservation actions to
preserve the PACs and served as the
foundation of a landscape-level
conservation strategy (Federal, State,
and private) developed and
implemented by BLM, USFS, SGI, the
States of Wyoming, Montana and
Oregon, and private landowners.
Together, the Federal Plans, Wyoming
Plan, Montana Plan, and Oregon Plan
reduce potential threats on 90 percent of
sage-grouse breeding habitat across the
species’ range. These conservation
efforts result in the preservation of large
expanses of undisturbed habitat
supporting the largest, best-connected
sage-grouse populations into the
foreseeable future.
The Federal Plans, Wyoming Plan,
Montana Plan, and Oregon Plan provide
adequate regulatory mechanisms to
reduce the threats of human-caused
habitat disturbance on the most
important sage-grouse habitats (as
discussed in detail in the Changes Since
the 2010 Finding, above). The Federal
Plans designate PHMAs, and the State
Plans designate Core Areas, all of which
correspond closely with the PACs
identified in the COT Report and
include important breeding and
seasonal habitats for the species. The
PHMAs and Core Areas are managed for
sage-grouse habitat objectives, primarily
by excluding or avoiding major new
surface-disturbing activities that could
cause habitat destruction (BLM and
USFS 2015, entire). For example, in
many important habitats, the Federal
Plans require NSO for nonrenewable
energy development, which results in
no new oil and gas wells or associated
infrastructure being constructed within
PHMAs. For the few ongoing land uses
that could continue to occur in PHMAs,
such as limited wind development in
certain areas and existing rights for
nonrenewable energy or mining, the
Federal, Wyoming, Montana, and
Oregon Plans work together to limit the
total amount of human-caused habitat
disturbance on PHMAs and Core Areas
to no more than 3 to 5 percent. To
prevent indirect impacts to sage-grouse
that could occur from land uses in areas
outside of PHMAs and Core Areas, the
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Federal Plans, Wyoming Plan, Montana
Plan, and Oregon Plan all require lek
buffers so that breeding birds will not be
disturbed by human activities. Lastly,
the Federal Plans require any project
that may adversely affect sage-grouse (in
both PHMA and GHMA) to minimize
impacts by implementing RDFs and
mitigating to a net conservation benefit
for sage-grouse. As a result of these
measures, the Federal and three State
Plans reduce the potential threat of
habitat loss caused by human-caused
disturbances on approximately 90
percent of breeding habitat across the
species’ range. These measures were
effective immediately upon the
implementation of the Federal Plans,
the Wyoming Plan, the Montana Plan,
and the Oregon Plan and will be in
place for the next 20 to 30 years.
Wildfire and its interaction with
invasive annual grasses, especially
cheatgrass, is a significant risk to the
sage-grouse and its habitat. In 2010, we
determined that the combination of
wildfire and invasive plants was a threat
to the sage grouse and a major
contributor to our finding that
protection for the sage-grouse was
warranted. Some wildfires will continue
in the Great Basin, as we cannot manage
the lightning strikes that spark many
wildfires. Between 2000 and 2014, just
less than one percent of sage-grouse
habitat has burned per year. A recent
modeling study predicts there could be
a 43 percent decline in sage-grouse
abundance within the next 30 years
unless effective management is
implemented to reduce the effects of
wildfire and invasive plants.
The Federal and State Plans include
commitments to change ongoing land
uses and to prioritize wildfire
management and invasive plant
treatments in ways that reduce the
synergistic threat of flammable invasive
vegetation and altered wildfire regimes
to sage-grouse habitats (as discussed in
detail in Changes Since the 2010
Finding, above). Within the Great Basin,
where wildfire is most prevalent, the
majority of breeding habitat is in
habitats that are most resilient to
invasive plants and wildfire. To reduce
the magnitude and severity of future
wildfires, FIAT assessments prioritize
wildfire and invasive plant management
strategies in those most resilient areas
that reduce the risk of habitat loss from
wildlife and invasive plants. Fire and its
impacts will be managed across the
landscape by the implementation of the
FIAT assessments and the Secretarial
Order that prioritize suppression of
wildfire in sage-grouse habitat. When a
wildfire occurs in sage-grouse habitat,
suppression in sage-grouse habitat will
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continue to receive the highest priority
allocation of wildfire suppression and
rehabilitation management, after human
safety. After a wildfire, the FIAT
assessments and the commitments in
the Secretarial Order ensure that
restoration will be initiated in the
immediate aftermath of the fire, when
restoration is most effective in
preventing invasive plant infestations.
To reduce impacts from grazing and
free-roaming equids that could stimulate
the wildfire and invasive plant cycle,
the Federal Plans require that livestock
and free-roaming equids be managed at
levels that achieve sage-grouse habitat
objectives in the 4.5 million ha (11
million ac) of SFAs, and after that in the
14 million ha (35 million ac) of PHMA.
Implementation of these measures began
in 2015, with the completion of the
Secretarial Order, and will continue
throughout the 20- to 30-year lifespan of
the Federal Plans. The work needed to
protect the highest priority areas for
conservation (SFAs) will be completed
within 5 years (BLM 2015h, entire; DOI
2015a, p. 3). The new focus and
prioritization of wildfire suppression
and restoration for sage-grouse is an
unprecedented change in wildfire
fighting in sagebrush habitats that has
been successfully implemented during
the 2015 wildfire season. As described
in the Wildfire and Invasive Plants
section above, we expect the Secretarial
Order and all other wildfire related
actions will be implemented and
effective. This sustained change in
wildfire strategies reduce the risk that
fire and invasive plants are likely to
impact sage-grouse now and into the
future. While we expect to see some
continued loss of habitat and sagegrouse in the future due to wildfire and
invasive plants, we do not expect that
the species will be at risk of extinction
or likely to become so due to risks posed
by wildfire and invasive plants.
In addition to the benefits provided
by the regulatory mechanisms and
management activities in PHMAs and
SFAs, the Federal Plans require new
minimization measures in GHMA,
where habitat is important for
connectivity between populations and
restoration opportunities (as discussed
in detail in Changes Since the 2010
Finding, above). In GHMA, the plans
reduce potential threats from humancaused disturbances by avoiding certain
uses, such as infrastructure. When landuses are allowed, science-based lek
buffers (Manier et al. 2014, entire) are
required for any projects implemented
in GHMAs to ensure that the project is
sited at a distance away from leks so
that breeding sage-grouse are not
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disturbed. All projects implemented in
GHMAs include RDFs to minimize
indirect effects to sage-grouse, such as
design and management of water
features so that mosquito habitat is not
created that could provide a vector for
WNv. Lastly, all projects implemented
in GHMAs (and PHMAs) are required to
be fully mitigated to a net conservation
gain for sage-grouse; these measures are
a substantial improvement from
management in 2010, where no
avoidance, minimization, or mitigation
was required. GHMA corresponds with
approximately 27 percent of breeding
habitat rangewide. These measures were
effective immediately upon the
implementation of the Federal Plans
and will be in place for the next 20 to
30 years.
Some other minor potential threats
exist such as hunting, disease,
predation, recreational activities, and
scientific use. As discussed in the
assessment of those potential threats
(see Summary of Information Pertaining
to the Five Factors, above), some minor
or localized adverse effects may occur,
but the best available information does
not indicate that rangewide populationlevel effects are occurring. For example,
while sage-grouse hunting continues to
be allowed in several States, it is highly
regulated and monitored with season
and bag limits adjusted based on
population monitoring so that this
activity does not negatively impact the
sustainability of this species. In
addition, some of those potential threats
are ameliorated by the Federal and State
Plans, as the exclusion or limitation on
land uses thereby further minimizes
these minor potential threats. For
example, exclusion of surface
development of nonrenewable energy in
PHMA and Core Areas and RDFs for
those projects in GHMA prevents the
creation of human-made water sources
that provide breeding habitat for
mosquitos that are vectors for WNv,
thus reducing the potential for disease
outbreaks in sage-grouse populations.
In addition to the Federal and State
Plans, extensive work by private
landowners is an important part of the
rangewide sage-grouse conservation
effort that has been implemented since
2010 (as discussed in detail in Changes
Since the 2010 Finding, above). Private
lands comprise about 39 percent of the
species’ range and contain some key
habitat types that are important to sagegrouse. Since 2010, SGI has completed
targeted sage-grouse habitat restoration
and enhancement actions on more than
1.8 million ha (4.4 million ac) of private
ranchlands throughout the species’
occupied range. This work includes
conifer removal, which will be
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strategically implemented through use
of new conifer mapping (NRCS 2015a,
19). It also includes more than 180,000
ha (450,000 ac) of conservation
easements that protect sage-grouse
habitat from future agricultural
conversion or urban and exurban
development. The SGI is also actively
engaged in the BLM and USFS efforts to
address the wildfire and invasive plants
cycle by working with ranchers to
implement grazing practices and fuels
treatments to improve resistance and
resilience of the sagebrush ecosystem.
The NRCS has committed 198 million
dollars to continue these efforts, with a
goal of doubling previous
accomplishments by 2018 (NRCS 2015a,
p. 30, NRCS 2015b, p. 6).
Private lands conservation has
occurred in Oregon and Wyoming with
the completion of CCAAs that provide
opportunities for enrollment for all
private lands within those States (as
discussed in detail in Changes Since the
2010 Finding, above). Programmatic and
Umbrella CCAAs in these States provide
sage-grouse guidance for ranch
management practices, ensuring that
enrolled lands will be managed to
benefit sage-grouse. The programmatic
agreements in Oregon provide a
framework for other landowners to
easily enroll without a large amount of
time and paperwork, making it likely
that others will enroll in the future.
These agreements have resulted in
substantial private lands conservation
for sage-grouse. For example,
landowners in Oregon have either
completed enrollment or have signed
formal letters of intent to enroll,
representing more than 575,000 ha (1.4
million ac) of private rangeland in
Oregon. In Wyoming, a completed
umbrella CCAA covers important
private lands in the range of the sagegrouse, and 36 private landowners have
completed CCAAs in Wyoming under
this programmatic CCAA. Collectively,
there are 180,223 ha (445,343 ac) of
private and State lands in the umbrella
CCAA.
To summarize, in the 2010 finding,
we determined that the regulatory
mechanisms needed to address the loss
and fragmentation of sage-grouse
habitats were inadequate. Five years
later, and following an unprecedented
conservation planning effort by Federal,
State, local, and private partners, we
now determine that regulatory
mechanisms and conservation efforts
adequately address the loss and
fragmentation of sage-grouse habitats
based on the following reasons:
• The BLM and USFS have successfully
amended or revised 98 land use plans that
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govern approximately 50 percent of the sagegrouse occupied range. These plans now
clearly out outline the expectations for
management that will conserve sage-grouse
habitat on BLM and USFS lands.
• The States of Wyoming, Montana, and
Oregon completed plans with regulatory
mechanisms that effectively reduce the loss
and fragmentation of sage-grouse habitats.
Collectively, the Federal Plans and three
State Plans reduce impacts on more than 90
percent of sage-grouse breeding habitat under
this umbrella of Federal and State protection.
• The implementation of the FIAT and
Secretarial Order is reducing and restoring
habitat lost to wildfire in important sagegrouse habitats and making the protection
and rehabilitation of sage-grouse habitats a
priority second to human health and safety.
During the 2015 wildfire season, we are
already seeing the positive results of these
focused efforts to reduce habitat loss and
fragmentation from wildfire.
• The SGI, led by the NRCS, is working
with private landowners across the range of
the sage-grouse. The initiative targets land
within priority sage-grouse habitat and is
improving rangeland health on more than 2.4
million acres.
• We have worked with the States and
private landowners, especially in Oregon and
Wyoming, to implement CCAAs that cover
more than 1.8 million acres. These
agreements will ensure the conservation of
sage-grouse habitat while providing working
landscapes for the landowners.
The Act defines an endangered
species as any species that is ‘‘in danger
of extinction throughout all or a
significant portion of its range’’ and a
threatened species as any species ‘‘that
is likely to become endangered
throughout all or a significant portion of
its range within the foreseeable future.’’
We recognize that all impacts to the
species have not been completely
eliminated, and that existing and
ongoing activities will continue to affect
the species and its habitat. Therefore, it
is likely that, over the foreseeable
future, there will be some reduction in
available habitat quantity and quality,
some decrease in the relative population
index, and local range contraction
(including the loss of some small
populations on the edges of the species’
range). The conservation efforts
included in this analysis, however, have
significantly reduced the impacts in the
most important habitats for the species.
These areas are highly correlated with
the PACs identified in the COT Report
as areas necessary for sufficient
representation, resilience, and
redundancy to ensure persistence of the
species.
The conservation efforts by Federal,
State, and private partners have greatly
changed the likely trajectory of the
species from our 2010 projections when
we determined that the species
warranted listing. We conclude that,
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taking into account the potential, but
now minimized, effects to the species
over the foreseeable future, the species
is not likely to become endangered
within the foreseeable future because of
the number of large, connected
populations distributed across the
species’ range and the unprecedented
level of conservation actions now in
place for 90 percent of the breeding
habitat across the species’ range. In
other words, even with the remaining
likely reduction in habitat and
populations discussed above, the sagegrouse will retain sufficient
representation, resilience, and
redundancy throughout the foreseeable
future.
The sage-grouse has a broad
distribution across the seven MZs, 11
States, and 2 Canadian Provinces.
Despite historical reductions in
occupied range, sage-grouse occupy
approximately 703,453 km2 (271,604
mi2), more than 50 percent of their
historical range. The species occurs over
a variety of habitats that vary by
vegetation, elevation, soil type, and
precipitation. Through this broad
distribution in these varied ecological
conditions, the species will maintain
representation. The species will
continue to exist in the large and most
of the small populations across the
range, providing species redundancy
now and into the future. The larger
populations, which comprise the core of
the species’ range and are protected
through Federal and State Plans, will be
more resilient to direct impacts and are
expected to rebound following
disturbance. In summary, for sagegrouse, maintaining representation,
redundancy, and resilience means
having multiple and geographically
distributed populations throughout the
varied habitats across the species’ range,
and we conclude that this goal is
achieved through the Federal and State
Plans.
The new Federal land-management
paradigm is established in 98 amended
Federal Plans that reduce and minimize
threats to the species in the most
important habitat for the species.
Several States have adopted their own
regulatory measures to reduce habitat
loss and fragmentation on non-Federal
lands. Many private landowners have
also engaged in proactive conservation
efforts that provide additional benefits
to the species and indicate a shift in
cultural attitudes towards the sagebrush
ecosystem. Together, the Federal Plans
and State Plans in Wyoming, Montana,
and Oregon reduce threats on
approximately 90 percent of the
breeding habitat across the species’
range. Looking ahead, we expect these
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conservation efforts will continue to be
implemented for the next 20 to 30 years,
ensuring the protection of the most
important habitats so that large sagegrouse populations continue to be
distributed across the species’ range.
These conservation efforts occur in the
areas needed for redundancy,
representation, and resilience of the
species.
Therefore, we find that the magnitude
and imminence of threats either
individually or in combination do not
indicate that sage-grouse is currently in
danger of extinction (endangered).
Further, based on our analysis and the
conservation provided by the
conservation efforts described
throughout this document, we find that
the magnitude and imminence of threats
either individually or in combination do
not indicate that the sage-grouse is
likely to become endangered within the
foreseeable future (threatened).
Therefore, based on our assessment of
the best available scientific and
commercial information, we find that
listing the sage-grouse as a threatened or
an endangered species is not warranted
at this time.
Significant Portion of the Range
Under the Act and our implementing
regulations, a species may warrant
listing if it is in danger of extinction or
likely to become so throughout all or a
significant portion of its range. The Act
defines ‘‘endangered species’’ as any
species which is ‘‘in danger of
extinction throughout all or a significant
portion of its range,’’ and ‘‘threatened
species’’ as any species which is ‘‘likely
to become an endangered species within
the foreseeable future throughout all or
a significant portion of its range.’’ The
term ‘‘species’’ includes ‘‘any
subspecies of fish or wildlife or plants,
and any distinct population segment
(DPS) of any species of vertebrate fish or
wildlife which interbreeds when
mature.’’ We published a final policy
interpreting the phrase ‘‘Significant
Portion of its Range’’ (SPR) (79 FR
37578, July 1, 2014). The final policy
states that (1) if a species is found to be
endangered or threatened throughout a
significant portion of its range, the
entire species is listed as an endangered
or a threatened species, respectively,
and the Act’s protections apply to all
individuals of the species wherever
found; (2) a portion of the range of a
species is ‘‘significant’’ if the species is
not currently endangered or threatened
throughout all of its range, but the
portion’s contribution to the viability of
the species is so important that, without
the members in that portion, the species
would be in danger of extinction, or
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likely to become so in the foreseeable
future, throughout all of its range; (3)
the range of a species is considered to
be the general geographical area within
which that species can be found at the
time the Service or the National Marine
Fisheries Service makes any particular
status determination; and (4) if a
vertebrate species is endangered or
threatened throughout an SPR, and the
population in that significant portion is
a valid DPS, we will list the DPS rather
than the entire taxonomic species or
subspecies.
The SPR policy is applied to all status
determinations, including analyses for
the purposes of making listing,
delisting, and reclassification
determinations. The procedure for
analyzing whether any portion is an
SPR is similar, regardless of the type of
status determination we are making.
The first step in our analysis of the
status of a species is to determine its
status throughout all of its range. If we
determine that the species is in danger
of extinction, or likely to become so in
the foreseeable future, throughout all of
its range, we list the species as an
endangered (or threatened) species and
no SPR analysis will be required. If the
species is neither in danger of extinction
nor likely to become so throughout all
of its range in the foreseeable future, we
then determine whether the species is in
danger of extinction or likely to become
so in the foreseeable future throughout
a significant portion of its range. If it is,
we list the species as an endangered or
a threatened species, respectively; if it is
not, we conclude that listing the species
is not warranted.
When we conduct an SPR analysis,
we first identify any portions of the
species’ range that warrant further
consideration. The range of a species
can theoretically be divided into
portions in an infinite number of ways.
However, there is no purpose to
analyzing portions of the range that are
not reasonably likely to be significant
and endangered or threatened. To
identify only those portions that warrant
further consideration, we determine
whether there is substantial information
indicating that (1) the portions may be
significant and (2) the species may be in
danger of extinction in those portions or
likely to become so within the
foreseeable future. We emphasize that
answering these questions in the
affirmative is not a determination that
the species is endangered or threatened
throughout a significant portion of its
range—rather, it is a step in determining
whether a more detailed analysis of the
issue is required. In practice, a key part
of this analysis is whether the threats
are geographically concentrated in some
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way. If the threats to the species are
affecting it uniformly throughout its
range, no portion is likely to warrant
further consideration. Moreover, if any
concentration of threats applies only to
portions of the range that clearly do not
meet the biologically based definition of
‘‘significant’’ (i.e., the loss of that
portion clearly would not be expected to
increase the vulnerability to extinction
of the entire species), those portions
will not warrant further consideration.
If we identify any portions that may
be both: (1) Significant; and (2)
endangered or threatened, we engage in
a more detailed analysis to determine
whether these standards are indeed met.
The identification of an SPR does not
create a presumption, prejudgment, or
other determination as to whether the
species in that identified SPR is
endangered or threatened. We must go
through a separate analysis to determine
whether the species is endangered or
threatened in the SPR. To determine
whether a species is endangered or
threatened throughout an SPR, we will
use the same standards and
methodology that we use to determine
if a species is endangered or threatened
throughout its range.
Depending on the biology of the
species, its range, and the threats it
faces, it may be more efficient to address
the ‘‘significant’’ question first, or the
status question first. Thus, if we
determine that a portion of the range is
not ‘‘significant,’’ we do not need to
determine whether the species is
endangered or threatened there; if we
determine that the species is not
endangered or threatened in a portion of
its range, we do not need to determine
if that portion is significant.
Because we determined that the sagegrouse is neither endangered nor
threatened throughout all of its range,
due largely to the effective reduction
and amelioration of threats by ongoing
and future regulatory mechanisms and
other conservation efforts, we must next
determine whether the sage-grouse may
be endangered or threatened in a
significant portion of its range. To do
this, we must first identify any portion
of the species’ range that may warrant
consideration by determining whether
there is substantial information
indicating that: (1) The portions may be
significant, and (2) the species may be
in danger of extinction in those portions
or is likely to become so within the
foreseeable future. We note that a
positive answer to these questions is not
a determination that the sage-grouse is
endangered or threatened within a
significant portion of its range, but
rather a positive answer to these
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questions confirms whether a more
detailed analysis is necessary.
While the overall range of the sagegrouse could be subdivided into
numerous portions, there are four
primary biological divisions based on
differences in populations and the
concentrations of potential threats.
These four portions are: The bi-State
population in Nevada and California;
the Columbia Basin population in
Washington; and the Rocky Mountain
and Great Basin portions of the range.
We previously evaluated the status of
the bi-State population and determined
that listing is not warranted. We now
consider the Columbia Basin population
to be part of the Great Basin portion of
the range. The range of the sage-grouse
is the general geographical area within
which the species is found at the time
of this finding. Specifically, the current
range of the sage-grouse covers 11 States
(Washington, Oregon, California,
Nevada, Idaho, Montana, Wyoming,
Colorado, Utah, South Dakota, and
North Dakota), and two Canadian
provinces (Alberta and Saskatchewan),
and encompasses all the current
populations of sage-grouse, with the
exception of the bi-State sage-grouse
Distinct Population Segment, and the
intervening habitat (Figure 1, above).
Analyzing the threats to the Rocky
Mountain and Great Basin populations
also satisfies the requirement of the Act
to address populations and threats in
significant portions of the sage-grouse’s
overall range.
We first evaluated whether potential
threats to the sage-grouse might be
geographically concentrated in any one
portion of its range. We examined
impacts to sage-grouse from fire,
invasive plants, conifer encroachment,
agricultural conversion, renewable- and
nonrenewable-energy development,
mining, infrastructure, fences, improper
grazing, free-roaming equids, urban and
exurban development, recreation,
climate change, drought, recreational
hunting, scientific and educational
purposes, disease, predation,
contaminants, military activities, small
populations, the inadequacy of
regulatory mechanisms, and cumulative
effects. In our rangewide finding, we
determined that impacts to the sagegrouse are found throughout its range.
Although these potential threats occur
throughout the current range, they are
concentrated differently between
eastern and western portions of the
range. Additionally, there are
differences in the composition and
ecology of sagebrush habitats in the
eastern versus the western portions of
the range, and sage-grouse are variably
distributed across the landscape from
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east to west (see Habitat and
Distribution section above). The type
and focus of conservation efforts to
reduce and ameliorate potential threats
vary between eastern and western
portions of the range due to the
differences in concentration. Therefore,
these differences in sagebrush habitats,
the distribution of sage-grouse, the
concentrations of potential threats, and
conservation efforts suggest that eastern
and western portions of the range could
be significant and warrant additional
analysis.
The eastern, or Rocky Mountain
portion (MZs I, II, and VII), of the
species’ current range covers
approximately half of the occupied
range, contains approximately 49
percent of the sage-grouse estimated
abundance, and generally contains
sagebrush habitat that is higher in
elevation and receives greater amounts
of precipitation (Figure 1). The western
or Great Basin (MZs III, IV, V, and VI)
portion of the species’ current range
similarly covers about half of the
occupied range and approximately 51
percent of the sage-grouse, but contains
sagebrush habitat that is lower in
elevation and receives less precipitation
(Figure 1). Concentrations of potential
threats differ between these two
portions of the range, with
nonrenewable energy development,
agricultural conversion, and
infrastructure more concentrated in the
Rocky Mountain portion, while wildfire
and invasive species are more
concentrated in the Great Basin portion.
The Great Basin portion of the range
includes the sage-grouse populations in
the Columbia Basin (MZ VI).
Because some potential threats are
more concentrated in either the Rocky
Mountain or Great Basin portions, we
determine that the Rocky Mountain and
Great Basin portions warrant further
consideration as potential significant
portions of the range. Next we evaluate
whether the sage-grouse is threatened or
endangered in either the Rocky
Mountain or Great Basin portions of its
current range.
The current range of the sage-grouse
could theoretically be divided into an
infinite number of portions. In the first
step of our significant portion of the
range analysis, we identified the Rocky
Mountains and the Great Basin as
portions that warrant further
consideration. Both portions represent
approximately half of the current range,
and the entire sage-grouse population is
distributed equally between both
portions. As we discussed in the BiState Distinct Population Segment
section of this document above, the
Columbia Basin represents less than 1
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percent of the species’ occupied range
less than 3 percent of the breeding
habitat, and its loss would not result in
a significant gap in the occupied range
of the sage-grouse. Therefore, the
Columbia Basin does not contribute to
the overall viability of the species and
does not meet the definition of
‘‘significant’’ under the SPR policy. We
did not identify any other portions
within these larger portions that warrant
further consideration because the
potential threats are not substantially
concentrated within any areas other
than the Rocky Mountain or Great Basin
portions, that are particularly large,
constitute a particularly high percentage
of the species’ range, or are likely to be
particularly important for the
representation, resilience, or
redundancy of the species. Therefore,
we conclude that any portions of the
range within the Rocky Mountain and
Great Basin portions that we have
identified do not warrant further
consideration as significant portions of
the range.
Status of the Rocky Mountain Portion of
the Current Range
In our 2010 finding, we were
concerned with long-term declines in
abundance trends for the Rocky
Mountain MZs (MZs I, II, and VII), and
we identified a number of threats likely
contributing to those declines (75 FR
13910, March 23, 2010). The most
important threats identified for the
Rocky Mountain portion of the range
were habitat loss and fragmentation
from energy development,
infrastructure, and agricultural
conversion; disease—particularly WNv;
loss of habitat from improper livestock
management; and inadequacy of
regulatory mechanisms limiting humancaused impacts. Of these threats, the
most significant of these involved a
combination of habitat loss and
fragmentation from infrastructure and
energy development, and inadequate
regulatory mechanisms to address these
impacts.
The potential threats from fire,
invasive grasses, free-roaming equids,
conifer encroachment, and urban and
exurban development have only limited,
localized impacts to sage-grouse in the
Rocky Mountain portion of the range
now and into the foreseeable future. In
addition, our evaluation of the Rocky
Mountain portion of the current range
focuses primarily on those potential
threats most likely to affect,
individually or cumulatively, sagegrouse in the Rocky Mountains, which
does not include urban and exurban
development, recreation, climate change
and drought, recreational hunting,
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scientific and educational uses,
contaminants, and military activity.
Those threats that are likely to affect
sage-grouse in the Rocky Mountains are
summarized below. Full discussions of
each of these potential threats can be
found in Summary of Information
Pertaining to the Five Factors (above).
Due to new regulatory mechanisms
and conservation efforts, the potential
threats identified in 2010 have been
adequately ameliorated in the Rocky
Mountain portion of the range.
Historically, agricultural conversion
reduced and fragmented sage-grouse
habitats in the Rocky Mountain portion
of the range, primarily in MZ I.
However, the new cropland risk model
(described above in the Summary of
Information for Agricultural
Conversion) indicates that future
agricultural conversion is unlikely to
have substantial impacts in MZ I of the
Rocky Mountain portion of the current
range, and future conversions to
agriculture are unlikely to occur at
greater rates or magnitudes outside of
MZ I. Further the implemented
regulatory mechanisms effectively
reduce impacts from nonrenewable
energy development, such that less than
17 percent of the sage-grouse population
and 12 percent of the breeding habitat
in the Rocky Mountain portion of the
range could be exposed to
nonrenewable energy development in
the future.
We identified improper livestock
management as a source of habitat loss
and fragmentation in 2010. Since that
time, rangeland-health standards in the
Federal Plans, Wyoming and Montana
State Plan requirements, and SGI
practices of applying grazing systems,
vegetating former rangeland with
sagebrush and perennial grasses, and
controlling invasive grasses, effectively
ameliorate this threat to the sage-grouse
in the Rocky Mountain portion of the
range, now or in the future.
Renewable energy development has
not occurred extensively within the
Rocky Mountains, but potential exists,
particularly for wind development.
Infrastructure exists throughout the
Rocky Mountains and will likely
continue into the future. For each of
these impacts, the regulatory
mechanisms provided by Federal Plans,
the Montana Plan, and the Wyoming
Plan substantially reduce this potential
impact by restricting new development
in important sagebrush habitats. Coal
mining, the primary kind of mining
occurring in the Rocky Mountains, has
generally declined since 2008.
Regulatory mechanisms provided by the
Federal Plans exclude new leasable
(except coal) and saleable mineral
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development on more than 14 million
ha (35 million ac) of PHMA. Because of
the effective regulatory mechanisms that
protect important habitats, these types
of development are not threats to sagegrouse within the Rocky Mountain
portion of the range, now or in the
future.
As described in the Summary of
Information Pertaining to the Five
Factors (above), we also evaluated the
impacts of predation and disease and
found that, although they present
localized impacts, they were not likely
to result in population-level effects.
This remains true when reviewing the
information for the Rocky Mountain
portion of the range.
Conservation Efforts in the Rocky
Mountain Portion of the Current Range
Since the 2010 finding, many parties
have collaborated to develop
comprehensive strategies that
ameliorate the major potential threats,
consistent with the COT Report. The
Federal Plans and Wyoming and
Montana Plans provide adequate
regulatory mechanisms to reduce the
threats of human-caused habitat
disturbance on the most important sagegrouse habitats (as discussed in detail in
the Changes Since the 2010 Finding,
above). The Federal Plans designate
PHMA, and the Wyoming and Montana
Plans designate Core Areas, all of which
correspond closely with the PACs
identified in the COT Report. In the
Rocky Mountain portion of the range,
more than 67 percent of the sage-grouse
breeding habitat distribution is
protected as PHMA and more than 30
percent is protected as GHMA.
The Federal Plans address the
primary potential threats that reduce
and fragment sage-grouse habitats on
BLM- and USFS-administered lands in
the Rocky Mountain portion of the
range, including infrastructure and
energy development. All forms of
development—from energy, to
transmission lines, to recreation
facilities and grazing structures—would
be avoided in PHMA unless a further
assessment found that the project would
not adversely affect the sage-grouse.
Consistent with COT guidance, a
limited amount of development could
occur in GHMAs, although additional
conservation measures, such as lek
buffers, seasonal and timing restrictions,
and project-design features, will
minimize potential effects in GHMA.
In conjunction with the Federal Plans,
the Wyoming Plan incorporates
stipulations and conservation measures,
such as controlled surface use, seasonal
and noise restrictions, consultation
requirements, density of development
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restrictions, and lek buffers to reduce
impacts associated with energy
development on all lands within Core
Areas in Wyoming. The Montana Plan
includes a regulatory mechanism
similar to the Core Area Strategy to
reduce impacts associated with energy
development in Core Areas on Stateowned lands and private lands when a
State authorization is required. The
Montana Plan also requires similar
conservation measures to reduce
impacts, such as seasonal and noise
restrictions, density development
restrictions, and lek buffers.
Finally, conservation efforts on
private lands through SGI and CCAAs
reduce potential threats in the Rocky
Mountain portion of the range. SGI
efforts with ranchers to address grazing
systems and fences, to implement
habitat restoration, and to provide
conservation easements have protected
sage-grouse habitat from further
fragmentation; NRCS’ commitment to
adaptive management, partnerships, and
flexibility in conservation approaches
ensures continued and constantly
improving conservation on private lands
within sage-grouse habitat. In Wyoming,
a completed umbrella CCAA covers
important private lands in the range of
the sage-grouse, and 30 private
landowners have completed CCAAs in
Wyoming under this programmatic
CCAA. Collectively, there are 180,223
ha (445,343 ac) of private and State
lands committed within the umbrella
CCAA, 112,212 ha (277,282 ac) of which
are located within sage-grouse Core
Areas, and 8,235 ha (20,348 ac) are in
connectivity areas.
By taking a landscape-level view that
spans land ownership in the Rocky
Mountain portion of the range, these
conservation efforts have significantly
reduced the potential threats to sagegrouse now and in the foreseeable
future. Many of these conservation
efforts are regulatory mechanisms on
Federal lands that are managed
consistently by BLM and USFS in the
five Rocky Mountain States (MT, WY,
CO, ND, and SD). Similar regulatory
mechanisms are provided by Montana
and Wyoming State Plans and Executive
Orders to reduce potential impacts on
non-Federal lands in those States. These
regulatory mechanisms are finalized, are
currently being implemented, and are
likely to continue to be implemented for
the next 20 to 30 years. In addition, SGI
and private land owners have
implemented conservation projects
across the Rocky Mountain portion of
the range, further contributing to sagegrouse conservation. The SGI has
committed to continue this work for the
next 3 years, ensuring private land
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conservation will continue to be
implemented through the authorization
of the next Farm Bill (NRCS 2015a, p.
2). All of these conservation actions are
consistent with the COT Report
recommendations and scientific
literature, which indicates they will
effectively conserve sage-grouse.
Conclusion for the Rocky Mountain
Portion of the Current Range
Based on Federal and State
regulations and conservation efforts, the
risk and exposure of the sage-grouse to
the potential threats of nonrenewableenergy development, agricultural
conversion, and habitat fragmentation
from infrastructure and other
development are significantly reduced.
These conservation efforts are
ameliorating the potential threats and
decreased the amount and rate of
development well below what was
expected, and by minimizing and
mitigating impacts to sage-grouse, have
significantly addressed threats facing
sage-grouse as described in the 2010
finding, the COT Report, and other
published scientific findings. In the
Rocky Mountain portion, some habitat
loss associated with energy
development, infrastructure,
agricultural conversion, and
urbanization will continue into the
future.
Some sage-grouse populations may
continue to decline in some parts of the
Rocky Mountains. However, the existing
and future effective regulatory
mechanisms and conservation efforts in
the Rocky Mountain portion of the range
will protect the most important habitats
and maintain relatively large, welldistributed, and interconnected sagegrouse populations across much of the
eastern portion of its range. Since the
2010 finding, there has been an
unprecedented and substantial
proactive conservation effort to reduce
potential habitat loss and fragmentation
from infrastructure and energy
development. More than 67 percent of
the sage-grouse breeding habitat in the
Rocky Mountains is protected by
PHMA, where no development will
occur, and more than 30 percent is
protected by GHMA, where required
conservation measures will avoid and
reduce adverse effects. Therefore, we
determined that, due to the combination
of regulations on Federal lands and
regulatory and voluntary measures on
private lands that provide adequate
avoidance and mitigation, these
potential threats are effectively being
reduced in the Rocky Mountain portion
of the range.
Therefore, we conclude that sagegrouse in the Rocky Mountain portion of
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the current range are not in danger of
extinction or likely to become so within
the foreseeable future, due to the
existing effective conservation efforts
implemented since 2010 and future
conservation efforts. Sage-grouse will
remain well-distributed and
interconnected into the foreseeable
future as these conservation efforts are
implemented. Therefore, the sage-grouse
is not threatened or endangered in the
Rocky Mountain portion of its current
range.
Status of the Great Basin Portion of the
Current Range
In our 2010 finding, we identified
long-term declines in sage-grouse
abundance trends for the Great Basin
MZs, and we identified a number of
threats likely contributing to those
declines (75 FR 13910, March 23, 2010).
The most important threats identified in
the 2010 finding for the Great Basin
were: Wildfire, invasive plants, conifer
invasion, habitat fragmentation, climate
change, loss of habitat quality due to
improper livestock and free-roaming
equid grazing, and the inadequacy of
regulatory mechanisms to address
human-caused impacts such as energy
and infrastructure development. Of
these threats, the greatest concern in the
Great Basin was habitat loss and
fragmentation from wildfire and
invasive plants. Currently, the primary
potential threats to sage-grouse in the
Great Basin include wildfire and its
synergistic effects with invasive plants.
We will also specifically summarize
habitat loss and fragmentation due to
conifer encroachment, mining,
renewable energy, and infrastructure in
the Great Basin. Our evaluation of the
Great Basin portion of the current range
focuses primarily on those potential
impacts most likely to affect,
individually or cumulatively, sagegrouse in the Great Basin and does not
include urban and exurban
development, recreation, predation,
climate change and drought,
recreational hunting, scientific and
educational uses, contaminants, and
military activity. Full discussions of
each of these potential threats can be
found in Summary of Information
Pertaining to the Five Factors (above).
Wildfire and its synergistic
relationship with invasive species,
climate change and drought, improper
grazing, and free-roaming equids was
identified in the 2010 finding as the
most serious threat to sage-grouse
populations in the Great Basin. Wildfire
is a natural and integral part of the Great
Basin landscape, and will continue into
the future. A recent study predicts that
a 43 percent decline in Great Basin sage-
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grouse populations could occur by 2044
if no additional management is
implemented to address the wildfire
and invasive plant cycle. If conservation
measures reduce the area burned by at
least 25 percent, the rate of population
decline is likely to be reduced. Further,
the study emphasizes the importance of
implementing conservation actions in
areas of moderate and high resistance
and resiliency and containing high
densities of sage-grouse. The FIAT
Assessments and Secretarial Order
conservation measures are consistent
with this recommendation to prioritize
implementation actions in places most
likely to be effective and to provide the
greatest benefit for sage-grouse.
Therefore, we conclude the continued
implementation of FIAT and the
Secretarial Order will reduce the rate of
decline in the Great Basin over the next
30 years.
Through the Federal Plans, the BLM
and USFS have established land health
standards that now consider and
incorporate sage-grouse habitat needs.
The Federal Plans restrict grazing in
areas that are not meeting standards,
and the agencies will manage freeroaming equid populations at levels that
minimize impacts to the most important
sage-grouse habitats. Voluntary
conservation through SGI’s invasive
species removal programs, improved
grazing practices, and the enhancement
and protection of healthy rangeland
conditions further improve habitat for
sage-grouse in the Great Basin. Finally,
State conservation efforts in Oregon
have further reduced the impacts of
wildfire, invasive plants, grazing, and
free-roaming equids through regulatory
mechanisms.
These and many other positive
conservation activities described in this
finding were not implemented, planned,
or certain to occur when the 2010
warranted finding was completed,
leading us to conclude that sage-grouse
warranted protections of the Act. The
regulatory mechanisms and
commitments to manage wildfire and
invasive plants will result in a
substantial reduction of habitat lost to
these impacts, such that sage-grouse
populations will continue to be
distributed and connected across the
Great Basin. Therefore, because the
potential impacts have been
substantially reduced by effective
regulatory mechanisms and the ongoing
implementation of conservation efforts,
wildfire and the associated synergistic
effects from invasive species, climate
change and drought, improper grazing,
and free-roaming equids are not
substantial threats to the sage-grouse
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within the Great Basin portion of the
range, now or in the future.
In addition to wildfire and its
synergistic impacts, habitat loss from
conifer encroachment has also been
identified as a concern in the Great
Basin. Conifers are a natural component
of the sagebrush ecosystem, and, if not
actively managed, are expected to
continue to expand, resulting in
additional loss of habitat in the Great
Basin. However, Federal and State Plan
vegetation objectives and on-the-ground
removal of conifers through SGI and
State efforts have reduced impacts of
this potential threat. For the next 3
years, SGI has committed to continue
this work, ensuring private land
conservation will continue to be
implemented (NRCS 2015a, p. 2; NRCS
2015b, p. 6). As a result of direction
provided in State and Federal Plans and
ongoing implementation of SGI, the rate
of encroachment and habitat loss is
reduced such that conifer encroachment
is not a threat in the Great Basin portion
of the range, now or in the future.
Development due to mining,
renewable energy, and infrastructure
continues to occur in the Great Basin.
As discussed above (see Mining), mining
potential is difficult to predict. The
Federal Plans contain regulatory
mechanisms to avoid and minimize
potential impacts from mining in
important sage-grouse habitat. Similarly,
infrastructure and development of
renewable energy is currently present
across the Great Basin and will likely
continue at some level, but regulatory
mechanisms provided by Federal Plans
reduce potential future development by
eliminating or capping disturbance in
important sagebrush habitat and by
implementing project design features to
minimize impacts (e.g., buffers, noise
restrictions, etc.).
Conservation Efforts in the Great Basin
Portion of the Current Range
Since the 2010 finding, many parties
have collaborated to develop
comprehensive strategies that would
substantially ameliorate the major
potential threats, consistent with the
COT Report. Through Federal Plans,
State Plans, and voluntary conservation
on private lands through CCAA and
SGI, the Great Basin is being actively
managed for the benefit of sage-grouse.
The Federal Plans provide clear
management regulations with
measurable objectives to address
invasive annual grasses, conifer
encroachment, improper grazing, and
free-roaming equids. They prioritize
management in the most important
habitat (PHMA), which encompasses
approximately 60 percent of the
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breeding habitat in the Great Basin. All
forms of development—from energy,
infrastructure, and grazing structures—
would be avoided in PHMA unless
further assessment found the project not
to have any adverse effects on the
species. Consistent with COT guidance,
a limited amount of development could
occur in GHMAs, which support 23
percent of the breeding habitat in the
Great Basin (USFWS 2013, pp. 43–52).
In those instances, additional measures
such as lek buffers, seasonal and timing
restrictions, and project design features
will minimize potential indirect effects
that could occur. A more
comprehensive discussion on these
measures and their expected effects is
provided earlier in this finding (see
Summary of Information Pertaining to
the Five Factors, above).
The majority of sage-grouse habitat in
the Great Basin occurs on Federal lands,
making the Federal Plans’
implementation most important for
sage-grouse conservation in the Great
Basin. However, States can help reduce
potential threats through collaboration
with Federal land managers and by
promoting conservation outside Federal
lands. To date, Oregon is the only State
in the Great Basin that completed and
implemented a plan that provides
regulatory mechanisms. The Oregon
Plan provides regulatory protections for
sage-grouse habitat across all land
ownerships, a coordinated mitigation
system, wildfire management measures,
and a development cap for Core Areas
that is coordinated with the Federal
Plans.
Threat reduction is also enhanced on
private lands in the Great Basin through
the SGI and associated Farm Bill
programs. Throughout the western
States, SGI has implemented targeted
sage-grouse conservation practices on
more than 4.4 million acres, and has
allocated more than $424 million in
project funding. In the Great Basin
portion of the Range, SGI efforts with
ranchers to address grazing systems and
fences, to implement habitat restoration,
and to provide conservation easements
have protected sage-grouse habitat from
further fragmentation. The NRCS made
funding available from 2010 through
2018 to fund and implement the SGI
program (NRCS 2015a, p. 2, NRCS
2015b, p. 6). Since 2010, SGI has
implemented action on more than 1,000
ranches. NRCS’ commitment to adaptive
management, partnerships, and
flexibility in conservation approaches
ensures continued and constantly
improving conservation on private lands
within sage-grouse habitat. Based on the
track record of successfully
implemented conservation actions
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consistent with the COT Report
recommendations and commitments to
continue implementing the program, we
conclude that the SGI program provides
substantial conservation benefits to
sage-grouse in the Great Basin, now and
in the future.
The greatest amount of private lands
conservation in the Great Basin has
occurred in Oregon. In 2015, we
completed a series of programmatic
CCAAs for sage-grouse that potentially
covers all private lands in the range in
Oregon. In Oregon, more than 575,000
ha (1.4 million ac) of rangeland have
been effectively conserved for sagegrouse through enrollment of private
landowners in CCAAs. These
programmatic agreements provide a
framework for other landowners to
easily enroll without a large amount of
time and paperwork, making it likely
that others will be enrolled in the near
future.
This coordinated approach to
conserve sage-grouse and sagebrush
habitat has resulted in substantial
reductions in all of the potential threats
facing sage-grouse in the Great Basin in
the foreseeable future. Many of these
conservation efforts on Federal lands are
consistent across the five States due to
the management by BLM and USFS,
while programs on non-Federal lands
vary from State to State due to different
regulatory, political, ecological, and
economic circumstances in the
respective States. Since 2010, many of
the specific measures described in this
finding are under way or are being
finalized with actions to be
implemented during the coming years.
We have a high degree of certainty that
the majority of the planned future
actions will be implemented and will
reduce the magnitude of potential
threats facing the sage-grouse in the
Great Basin.
Conclusion for the Great Basin Portion
of the Current Range
Based on Federal, State, and private
landowner efforts, the potential threats
of wildfire (and associated, synergistic
impacts from invasive plants, climate
change and drought, improper grazing,
and free-roaming equids), conifer
encroachment, mining, and
infrastructure have been reduced. Some
habitat loss in the Great Basin portion
associated with wildfire and invasive
plants and conifer encroachment will
continue into the future, and it is likely
that sage-grouse populations will
continue to decline in some parts of the
Great Basin. However, we expect that
the existing and future effective
conservation efforts in the Great Basin
portion of the range will reduce declines
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59941
and will protect the most important
sage-grouse habitat, resulting in
relatively large, well-distributed, and
interconnected populations across much
of the western portion of its range. Since
the 2010 warranted finding, Federal,
State, and local entities to identify
specific needs of this species and to
provide resources for the conservation
and protection of the species and its
habitat. Due to these conservation
efforts, the species will remain welldistributed and interconnected into the
foreseeable future as these measures are
implemented. Therefore, the sage-grouse
is not a threatened or endangered
species in the Great Basin portion of its
range.
Conclusion
Our review of the best available
scientific and commercial information
indicates that the sage-grouse is not in
danger of extinction nor likely to
become endangered within the
foreseeable future throughout all of its
range. Additionally, we determined that
the sage-grouse is not in danger of
extinction now or within the foreseeable
future throughout either the Rocky
Mountain or Great Basin portions of its
range. Therefore, the sage-grouse is not
in danger of extinction nor likely to
become endangered within the
foreseeable future throughout a
significant portion of its range.
Therefore, we find that listing the sagegrouse as an endangered or threatened
species under the Act is not warranted
at this time.
The completion of this status review
is not the end of our commitment to
sage-grouse conservation. Our
determination today is based on the best
scientific and commercial data currently
available. That determination, however,
cannot guarantee that the sage-grouse
(or other sagebrush ecosystem species)
will not in the future warrant listing
under the Act. New threats may
develop, management may change, or
the species may not prove as resilient as
we concluded based on the currently
available science. Thus, although our
best judgment today indicates that
successful sage-grouse conservation will
be achieved by continued
implementation of the regulatory
mechanisms and conservation efforts we
relied on in our finding above, we and
our partners must carefully monitor
threats to the sage-grouse and its
response to those threats. Therefore, we
will work with our Federal and State
partners to conduct a sage-grouse status
review in 5 years. This status review
will inform adaptive management and
guide future research needs to ensure
that conservation efforts continue to
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benefit sage-grouse into the future. In
the meantime, to ensure the long-term
successes of this unprecedented
conservation effort, we will continue to
work with our partners to augment and
improve current management within the
sagebrush ecosystem. If at any time new
information indicates that the
provisions of the Act may be necessary
to conserve sage-grouse, we can initiate
listing procedures, including, if
appropriate, emergency listing pursuant
to section 4(b)(7) of the Act.
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References
Authority
A complete list of references cited is
available on the Internet at https://
www.regulations.gov and upon request
from the Mountain-Prairie Regional
Office (see ADDRESSES).
The authority for this action is section
4 of the Endangered Species Act of
1973, as amended (16 U.S.C. 1531 et
seq.).
Author(s)
The primary author(s) of this notice
are the staff members of the U.S. Fish
and Wildlife Service.
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Dated: September 21, 2015.
Daniel M. Ashe,
Director, U.S. Fish and Wildlife Service.
[FR Doc. 2015–24292 Filed 10–1–15; 8:45 am]
BILLING CODE 4310–55–P
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[Federal Register Volume 80, Number 191 (Friday, October 2, 2015)]
[Proposed Rules]
[Pages 59857-59942]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-24292]
[[Page 59857]]
Vol. 80
Friday,
No. 191
October 2, 2015
Part II
Department of the Interior
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Fish and Wildlife Service
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50 CFR Part 17
Endangered and Threatened Wildlife and Plants; 12-Month Finding on a
Petition To List Greater Sage-Grouse (Centrocercus urophasianus) as an
Endangered or Threatened Species; Proposed Rule
Federal Register / Vol. 80 , No. 191 / Friday, October 2, 2015 /
Proposed Rules
[[Page 59858]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R6-ES-2015-0146]; [4500030113]
Endangered and Threatened Wildlife and Plants; 12-Month Finding
on a Petition To List Greater Sage-Grouse (Centrocercus urophasianus)
as an Endangered or Threatened Species
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Notice of 12-month petition finding.
-----------------------------------------------------------------------
SUMMARY: We, the U.S. Fish and Wildlife Service (Service), announce a
12-month finding on petitions to list the greater sage-grouse
(Centrocercus urophasianus), both rangewide and the Columbia Basin
population, as an endangered or threatened species under the Endangered
Species Act of 1973, as amended (Act). After review of the best
available scientific and commercial information, we find that the
Columbia Basin population does not qualify as a distinct population
segment. In addition, we find that listing the greater sage-grouse is
not warranted at this time. However, we ask the public to submit to us
any new information that becomes available concerning the threats to
the greater sage-grouse or its habitat at any time.
DATES: The finding announced in this document was made on October 2,
2015.
ADDRESSES: This finding is available on the Internet at https://www.regulations.gov at Docket Number FWS-R6-ES-2015-0146. Supporting
documentation we used in preparing this finding is available for public
inspection, by appointment, during normal business hours at the U.S.
Fish and Wildlife Service, Mountain-Prairie Regional Office, 134 Union
Blvd., Lakewood, CO 80228. Please submit any new information,
materials, or questions concerning this finding to the U.S. Fish and
Wildlife Service, Mountain-Prairie Regional Office, P.O. Box 25486,
DFC, Mailstop 60120, Denver, CO 80225.
FOR FURTHER INFORMATION CONTACT: Michael Thabault, 303-236-9779.
SUPPLEMENTARY INFORMATION:
Executive Summary
Why we need to publish this document. Under the Endangered Species
Act (hereafter, Act), a species may warrant protection through listing
if it is endangered or threatened throughout all or a significant
portion of its range. We issued a 12-month finding that greater sage-
grouse was warranted for listing in 2010 (75 FR 13910, March 23, 2010).
However, since that time, new information about the status of the
species, potential threats, regulatory mechanisms, and conservation
efforts indicates that listing is not warranted.
The basis for our action. Under the Act, we can determine that a
species is an endangered or threatened species based on any of five
factors: (A) The present or threatened destruction, modification, or
curtailment of its habitat or range; (B) overutilization for
commercial, recreational, scientific, or educational purposes; (C)
disease or predation; (D) the inadequacy of existing regulatory
mechanisms; or (E) other natural or manmade factors affecting its
continued existence. Based on new information about these factors and
the adequacy of regulatory mechanisms and conservation efforts in
managing them, we have determined that the greater sage-grouse is not
in danger of extinction now or in the foreseeable future throughout all
or a significant portion of its range and that listing the species is
no longer warranted.
Based on the best available scientific and commercial information,
we have determined that the primary threats to greater sage-grouse have
been ameliorated by conservation efforts implemented by Federal, State,
and private landowners. In 2010, we identified habitat loss,
fragmentation, and inadequacy of existing regulatory mechanisms as
factors leading to a warranted determination. Since that time,
regulatory mechanisms through Federal and three State plans that
incorporate conservation principles identified by the scientific
experts have substantially reduced these risks in approximately 90
percent of the breeding habitat through avoidance and minimization
measures. Advancements in oil and gas technologies have reduced the
anticipated footprint of future development; the future conversion of
sagebrush habitats to agriculture is unlikely to impact greater sage-
grouse because high densities of breeding sage-grouse do not occur in
habitats that are suitable for agriculture; and renewable energy
development, although still a potential, is unlikely to occur in areas
where greater sage-grouse occur in the highest densities. Fire and
invasive species continue to occur in greater sage-grouse habitats,
especially in the Great Basin, but existing management and commitments
for suppression, restoration, and noxious weed treatments are reducing
that impact.
Rangewide, a number of relatively large greater sage-grouse
populations continue to be distributed across the landscape and are
supported by undisturbed expanses of habitat. Some habitat loss
associated with energy development, infrastructure, wildfire, and
invasive plants will continue into the future. However, regulatory
mechanisms provided by Federal and three State plans reduce threats on
approximately 90 percent of the breeding habitat across the species'
range.
Acronyms Used in This Document
We use many acronyms throughout this document. To assist the
reader, we provide a list of the most frequently used acronyms here for
easy reference:
AML Appropriate Management Level
AUM Animal Unit Months
BLM Bureau of Land Management
BSU Biologically Significant Unit
CCA Candidate Conservation Agreement
CCAA Candidate Conservation Agreement with Assurances
CED Conservation Efforts Database
CFR Code of Federal Regulations
CNRMP Cultural and Natural Resource Management Plan
COT Conservation Objectives Team
CRP Conservation Reserve Program
DoD U.S. Department of Defense
DOE Department of Energy
DOI U.S. Department of the Interior
DPS Distinct Population Segment
EIS Environmental Impact Statement
FIAT Fire and Invasives Assessment Tool
FLPMA Federal Land Policy and Management Act of 1976
FR Federal Register
GHMA General Habitat Management Area
GIS Geographic Information System
HMA Herd Management Areas
HMAP Herd Management Area Plan
INRMP Integrated Natural Resources Management Plan
LHS Land Health Standards
MZ Management Zone
NEPA National Environmental Policy Act
NFMA National Forest Management Act
NRCS Natural Resources Conservation Service
NSO No Surface Occupancy
NWR National Wildlife Refuge
PACs Priority Areas for Conservation
PHMA Priority Habitat Management Areas
RDF Required Design Features
ROW Right-of-Way
RFPA Rangeland Fire Protection Associations
SARA Canada's Species at Risk Act
SFA Sagebrush Focal Areas
SGI Sage Grouse Initiative
SGMAs Sage-grouse Management Areas
SGPA Sage-grouse Protection Area
SPR Significant portion of the range
USDA U.S. Department of Agriculture
USFS U.S. Forest Service
USGS U.S. Geological Survey
WAFWA Western Association of Fish and Wildlife Agencies
WNv West Nile virus
[[Page 59859]]
YTC Joint Base Lewis-McChord Yakima Training Center
Overview of Sections
The following is an outline of the major sections included in this
document:
Background
[cir] Previous Federal Actions
Species Information
[cir] Bi-State Distinct Population Segment
[cir] Columbia Basin Population
[cir] Greater Sage-grouse Listable Entity Summary
Distribution
Habitat
Life-History Characteristics and Seasonal Habitat Selection
Sage-grouse Connectivity and Landscape Genetics
Population Abundance and Trends
[cir] Abundance and Distribution Models
[cir] Population Abundance and Trends Summary
Changes Since the 2010 Finding
[cir] New Scientific Information
[cir] Sagebrush Landscape Conservation Planning
[cir] Summary of New Information Since 2010
Summary of Information Pertaining to the Five Factors
[cir] Habitat Fragmentation
[cir] Nonrenewable Energy Development
[cir] Infrastructure
[cir] Agricultural Conversion
[cir] Wildfire and Invasive Plants
[cir] Grazing and Rangeland Management
[cir] Free-Roaming Equids
[cir] Conifer Encroachment
[cir] Mining
[cir] Renewable Energy
[cir] Urban and Exurban Development
[cir] Recreation
[cir] Climate Change and Drought
[cir] Predation
[cir] Disease
[cir] Recreational Hunting
[cir] Scientific and Educational Use
[cir] Contaminants
[cir] Military Activity
[cir] Small Populations
[cir] Regulatory Mechanisms
Finding
[cir] Significant Portion of the Range
Conclusion
Background
Section 4(b)(3)(B) of the Act (16 U.S.C. 1531 et seq.), requires
that, for any petition to revise the Federal Lists of Endangered and
Threatened Wildlife and Plants that contains substantial scientific or
commercial information that listing the species may be warranted, we
make a finding within 12 months of the date of receipt of the petition.
In general we must determine whether a petitioned action is: (1) Not
warranted, (2) warranted, or (3) warranted, but the immediate proposal
of a regulation implementing the petitioned action is precluded by
other pending proposals to determine whether species are endangered or
threatened, and expeditious progress is being made to add or remove
qualified species from the Federal Lists of Endangered and Threatened
Wildlife and Plants. Section 4(b)(3)(C) of the Act requires that we
treat a petition for which the requested action is found to be
warranted but precluded as though resubmitted on the date of such
finding, that is, requiring a subsequent finding to be made within 12
months. We must publish these 12-month findings in the Federal
Register. See below for further discussion of the limitations imposed
through various means on this determination.
Previous Federal Actions
From 1999 to 2005, we received eight petitions to list the greater
sage-grouse throughout its range or within specific populations (Table
1). Among those, two were petitions to list the bi-State Distinct
Population Segment (DPS) of the greater sage-grouse (2002 and 2005),
which we have addressed separately and, hence, are not included in this
status assessment (see Bi-State Distinct Population Segment, below).
The responses to the other six petitions and the outcomes of ensuing
lawsuits and court settlements are detailed in the 2010 finding (75 FR
13910, March 23, 2010), and are summarized in Table 1.
Table 1--Summary of Previous Federal Actions for Greater Sage-Grouse, Including the Eastern and Western Subspecies and Columbia Basin Population
--------------------------------------------------------------------------------------------------------------------------------------------------------
Request of 90-day petition Status review Determination
Petitioner Date petition finding finding Legal challenges upheld
--------------------------------------------------------------------------------------------------------------------------------------------------------
Craig Dremann................... Jul. 2, 2002...... List rangewide.... These three Not warranted; Western Watersheds Finding remanded
(Institute for Wildlife Mar. 24, 2003..... List rangewide.... petitions were Jan. 12, 2005 (70 Project in 2007;
Protection. Dec. 29, 2003..... List rangewide.... combined in one FR 2244). challenged in warranted finding
American Lands Alliance [lead] + substantial 2006. published March
20 other organizations). finding: Apr. 21, 23, 2010 (75 FR
2004 (69 FR 13910).
21484).
Institute for Wildlife Jan. 24, 2002..... List the western Non-substantial; N/A............... Institute for Positive 90-day
Protection. subspecies. Feb. 7, 2003 (68 Wildlife finding April 29,
FR 6500). Protection 2008 (73 FR
challenged. 23170); part of
March 23, 2010,
finding, but
determined it was
not a recognized
subspecies (75 FR
13910).
Institute for Wildlife Jul. 3, 2002...... List the eastern Non-substantial; N/A............... Institute for Judge ruled in
Protection. subspecies. Jan. 7, 2004 (69 Wildlife favor of the
FR 933). Protection Service on Sept.
challenged. 28, 2004, and
dismissed
plaintiff case.
NW Ecosystem Alliance and May 28, 1999...... List the Columbian Substantial; Aug. Warranted but N/A............... Committed to
Biodiversity Legal Foundation. Basin population 24, 2000 (65 FR precluded; May 7, resolve the DPS
as a DPS. 51578). 2001 (66 FR status in the
22984). rangewide status
review.
--------------------------------------------------------------------------------------------------------------------------------------------------------
In 2010, we found that listing the greater sage-grouse rangewide
was warranted, but precluded by other higher priority actions. That
finding was based on continuing population declines, with some areas of
local
[[Page 59860]]
extirpations, resulting from habitat fragmentation. At that time,
habitat fragmentation was caused by a number of land use activities,
but energy development, agricultural conversion, conifer encroachment,
wildfire, and invasive species were of particular concern. Significant
habitat fragmentation was expected to continue into the foreseeable
future, and regulatory mechanisms were ineffective in addressing this
threat. As a result of these findings, the greater sage-grouse was made
a candidate for listing rangewide with a listing priority number of 8,
indicating that threats were of moderate magnitude and imminent (75 FR
13910, March 23, 2010).
On May 10, 2011, we filed a multiyear workplan as part of a
proposed settlement agreement with Wild Earth Guardians and others in a
consolidated case in the U.S. District Court for the District of
Columbia. On September 9, 2011, the Court accepted our agreement with
the plaintiffs in Endangered Species Act Section 4 Deadline Litig.,
Misc. Action No. 10-377 (EGS), MDL Docket No. 2165 (D. D.C.) (known as
the ``Multi-District Litigation case''), on a schedule to publish
proposed rules or not-warranted findings for the 251 species designated
as candidates as of 2010 no later than September 30, 2016. The workplan
included a deadline to submit a proposed rule or not-warranted finding
to the Federal Register for greater sage-grouse, including any DPSs
(but excluding the bi-State DPS), by September 30, 2015. Further,
Congress prohibited the expenditure of funds to publish a proposed rule
for the greater sage-grouse or the Columbian Basin population (Pub. L.
Number 113-235). The publication of this finding complies with the
workplan and is consistent with Congressional direction.
Species Information
Greater sage-grouse are birds in the Phasianidae family, which is a
diverse taxonomic group consisting of over 50 genera including turkeys
(Meleagris spp.), pheasants (Phasianus spp.), and partridges (Perdix
spp.). Adult male greater sage-grouse range in length from 66 to 76
centimeters (cm) (26 to 30 inches (in)) and weigh between 2 and 3
kilograms (kg) (4.4 and 6.6 pounds (lb)). Adult females are smaller,
ranging in length from 48 to 58 cm (19 to 23 in) and weigh between 1
and 2 kg (2.2 and 4.4 lb). Males and females have dark grayish brown
body plumage with many small gray and white spots, fleshy yellow combs
over the eyes, long pointed tails, fully feathered legs and feet, and
dark green toes. Males also have blackish chin and throat feathers,
conspicuous phylloplumes (specialized erectile feathers) at the back of
the head and neck, and white feathers forming a ruff around the neck
and upper belly. During breeding displays, males exhibit olive-green
apteria (fleshy bare patches of skin) on their breasts (Schroeder et
al. 1999, p. 2).
Bi-State Distinct Population Segment
In 2010, we found the bi-State population to be a DPS because it is
genetically unique and markedly separate from the rest of the greater
sage-grouse range (75 FR 13910, March 23, 2010). This DPS has been
addressed in a separate status review and was determined to be not
warranted for listing (80 FR 22828, April 23, 2015). Therefore, the bi-
State population of greater sage-grouse will not be addressed in this
status review.
Columbia Basin Population
In 2001, we concluded in a 12-month finding that the Columbia Basin
population of the western sage-grouse, a subspecies of the greater
sage-grouse, was a valid DPS that warranted listing under the Act (66
FR 22984, May 7, 2001). The subspecies was previously described as
being found in southern British Columbia, central Washington, and parts
of Oregon, Nevada, and California. Since that 12-month finding, new
information emerged that led us to conclude in 2010 that the best
scientific and commercial information does not support the recognition
of and the taxonomic validity of the western subspecies (75 FR 13910,
March 23, 2010). In that finding, we also reported that we would
reevaluate the status of the Columbia Basin population as it relates to
the greater sage-grouse in the future. Therefore, in the following
section we reevaluate the validity (i.e., discreteness and
significance) of the Columbia Basin population as a possible DPS with
respect to the correct taxon to which it belongs: The greater sage-
grouse (Centrocercus urophasianus).
Within our Policy Regarding the Recognition of Distinct Vertebrate
Population Segments Under the Endangered Species Act (61 FR 4722,
February 7, 1996), three elements are considered in the decision
concerning the establishment and classification of a possible DPS.
These elements include:
(1) The discreteness of a population in relation to the
remainder of the species to which it belongs;
(2) The significance of the population segment to the species to
which it belongs; and
(3) The population segment's conservation status in relation to
the Act's standards for listing, delisting, or reclassification (is
the population segment endangered or threatened).
Discreteness
Under the DPS policy, a population segment of a vertebrate taxon
may be considered discrete if it satisfies either one of the following
conditions:
(1) It is markedly separated from other populations of the same
taxon as a consequence of physical, physiological, ecological, or
behavioral factors. Quantitative measures of genetic or
morphological discontinuity may provide evidence of this separation.
(2) It is delimited by international governmental boundaries
within which differences in control of exploitation, management of
habitat, conservation status, or regulatory mechanisms exist that
are significant in light of section 4(a)(1)(D) of the Act.
In our 2001 12-month finding on the Columbia Basin DPS (66 FR
22984, May 7, 2001), we found that the population, which is located in
Washington, was physically discrete from other populations of what we
then considered the western subspecies of greater sage-grouse in
central and southern Oregon. Below, we reevaluate that finding giving
consideration to new information and conducting our analysis with
respect to the entire range of greater sage-grouse.
Markedly Separate--Greater sage-grouse in the Columbia Basin occur
in four relatively small, disconnected areas. Two of these areas (the
Army's Joint Base Lewis-McChord-Yakima Training Center (YTC) and
Douglas County) have endemic populations, and two areas (Yakama Indian
Nation and Lincoln County) are in the process of being repopulated by
translocations of individuals from outside the Columbia Basin (WWHCWG
2010, p. 55; WWHCWG 2012, pp. A.2-3). Translocations began in 2004 with
augmentation efforts on the YTC (Schroeder et al. 2014, p. 8; Stinson
and Schroeder 2014, p. 15). Translocations to reestablish populations
on Yakama Nation lands and in Lincoln County were initiated in 2006 and
2008, respectively (Schroeder et al. 2014, pp. 8-15).
The pre-European settlement distribution of greater sage-grouse is
generally described as being continuous from central Oregon, north to
the Columbia Basin (Schroeder et al. 2004, p. 368). However, this
continuity was lost between the pre- and post-settlement period, mostly
due to habitat fragmentation (Schroeder et al. 2000, pp. 105, 110;
2004, pp. 369-370). Breeding populations of greater sage-grouse in the
Columbia Basin are now separated by approximately 250
[[Page 59861]]
kilometers (km) (155 miles (mi)) of fragmented and unsuitable habitat
from the next nearest breeding population, the Baker population in
Oregon (Johnson et al. 2011, p. 409, Knick et al. 2013, p. 1544). The
second closest breeding population, in central Oregon, is approximately
260 km (162 mi) from the nearest breeding population in the Columbia
Basin (Johnson et al. 2011, p. 409, Knick et al. 2013, p. 1544). The
area between these populations consists of relatively small patches of
fragmented Artemisia spp. (sagebrush) within a matrix of croplands
(Knick et al. 2003, pp. 615-618). At the narrowest point, sagebrush
habitats on either side of this forested mountain range are
approximately 25 km (15 mi) apart, and no historical greater sage-
grouse records exist for this area (Knick et al. 2013, p. 1544).
No documented instances exist of greater sage-grouse moving between
the Columbia Basin and any other greater sage-grouse populations
without the aid of translocations. Seasonal migration in sage-grouse
over 100 km (62 mi) has been observed (Hagen 1999, p. 39; Tack et al.
2012, p. 65), but in Washington, seasonal movements tend to be less
than 30 km (19 mi) between breeding and wintering areas (Schroeder and
Vander Haegen 2006, entire; WWHCWG 2010, pp. 54-55). Despite
documentation of extensive seasonal movements in this species (Fedy et
al. 2012, p. 1066; Tack et al. 2012, p. 65; Davis et al. 2014, pp. 715-
716), the natal dispersal abilities of sage-grouse have been shown to
be low (Dunn and Braun 1985, p. 622; Thompson 2012, p. 193). Based on
data from radio-marked greater sage-grouse, the maximum distance
translocated birds in the Columbia Basin moved from the point of
release was 85 km (53 mi). The average maximum distance removed from
the release site for all birds with two or more locations was only 14
km (9 mi) (Schroeder et al. 2014, p. 17).
The ability of greater sage-grouse to move through the landscape is
affected by many factors, including the presence of suitable habitats
or topographic features that impede movement (Schulwitz et al. 2014, p.
568; Row et al. 2015, pp. 1965-1966). An assessment of habitat linkages
between greater sage-grouse in Washington and Oregon showed relatively
high landscape resistance to greater sage-grouse movements and no
modeled linkages between the Columbia Basin and other greater sage-
grouse populations (WWHCWG 2010, pp. 57-59). A separate modeling effort
evaluating contemporary connectivity among leks (communal breeding
centers where males perform courtship displays) spanning the Great
Basin and Columbia Basin also showed little to no movement potential
between the Columbia Basin and other greater sage-grouse populations
(Knick et al. 2013, p. 1548).
Analysis of genetic variation across the range of greater sage-
grouse is consistent with relatively short-distance dispersal, with
gene flow (the transfer of genetic material from one population to
another) decreasing as the distance between populations increases
(i.e., isolation by distance) (Oyler-McCance et al. 2005, p. 1306).
Landscape resistance can also influence patterns of gene flow in
greater sage-grouse, with broad-scale distribution of low-quality
nesting and wintering habitats identified as the most important factors
driving patterns of effective dispersal (Row et al. 2015, pp. 1963-
1964). Landscape-scale analyses of genetic variation show low levels of
gene flow between the Columbia Basin and other populations of greater
sage-grouse (Oyler-McCance et al. 2005, p. 1306). Analysis of allele
frequencies in greater sage-grouse on the YTC prior to augmentation
efforts showed that these individuals had low genetic diversity and
were distinguishable from individuals translocated from Oregon and
Nevada (Blankenship et al. 2011, pp. 7, 10); a result that is
consistent with little to no contemporary gene flow.
Greater sage-grouse have been translocated to the Columbia Basin
from Idaho, Oregon, Nevada, and Wyoming (Livingston et al. 2006, pp. 2-
3; Schroeder et al. 2014, pp. 8, 14-15). Moving greater sage-grouse
from other areas into the Columbia Basin population means that, while
this population is physically discrete from other populations, it has
been connected through human intervention. Genetic data collected post-
augmentation on the YTC confirms that breeding between endemic
individuals and translocated individuals has occurred (Blankenship et
al. 2011, p. 10). It is unknown if translocated greater sage-grouse
released on the Yakama Nation or in Lincoln County are interbreeding
with endemic populations of greater sage-grouse. However, at least one
bird translocated to Lincoln County is known to have dispersed to the
Douglas County population (Schroeder et al. 2014, p. 17). In addition,
two males released in Lincoln County moved to the Douglas County
population for a few days early in the 2015 breeding season, but
returned to Lincoln County and were observed strutting on the Lincoln
County lek (McPherron, USFWS, pers. comm. 2015).
International Boundaries--Greater sage-grouse occurrences were
documented in British Columbia from 1864 to 1918 (Campbell and Ryder
2010, p. 7), in the Okanogan Valley, an area considered part of the
Columbia Basin ecosystem. From 1918 to the 1950s, no occurrence records
were reported (Campbell and Ryder 2010, entire). Translocations were
conducted to reintroduce greater sage-grouse in the late 1950s, but
given the lack of occurrence records since the 1960s, the species is
considered extirpated from the province (Campbell and Ryder 2010, pp.
7-10). Therefore, greater sage-grouse in the Columbia Basin are not
delimited by international governmental boundaries.
Summary for Discreteness--Greater sage-grouse in the Columbia Basin
are physically separated from the nearest populations by approximately
250 to 260 km (155 to 162 mi). Information on movement and dispersal
ecology, telemetry data, habitat and connectivity modeling, and genetic
analyses, when viewed together, suggest that greater sage-grouse are
unlikely to move between the Columbia Basin population and other
greater sage-grouse populations. Based on this information alone, we
could conclude that the Columbia Basin population is discrete based on
marked separation from other populations as a consequence of physical
and ecological factors. However, ongoing translocation efforts provide
a connection that artificially links the Columbia Basin population to
other populations of greater sage-grouse. The connectivity provided by
human-intervention complicates any conclusions about the Columbia Basin
population's discreteness. Therefore, we will assume that the
population could be discrete and move on to assess the significance of
the population to the taxon.
Significance
If a population segment is considered discrete under one or more of
the conditions described in our DPS policy, its biological and
ecological significance will be considered in light of Congressional
guidance that the authority to list DPSs be used ``sparingly'' (see
Senate Report 151, 96th Congress, 1st Session) while encouraging the
conservation of genetic diversity. In making this determination, we
consider available scientific evidence of the DPS's importance to the
taxon to which it belongs. Since precise circumstances are likely to
vary considerably from case to case, the DPS policy does not describe
all the classes of information that might be used in
[[Page 59862]]
determining the biological and ecological importance of a discrete
population. However, the DPS policy describes four possible classes of
information that provide evidence of a population segment's biological
and ecological importance to the taxon to which it belongs. As
specified in the DPS policy (61 FR 4722, February 7, 1996), this
consideration of the population segment's significance may include, but
is not limited to, the following:
(1) Persistence of the population segment in an ecological
setting unusual or unique to the taxon;
(2) Evidence that loss of the population segment would result in
a significant gap in the range of a taxon;
(3) Evidence that the population segment represents the only
surviving natural occurrence of a taxon that may be more abundant
elsewhere as an introduced population outside its historical range;
or
(4) Evidence that the population segment differs markedly from
other populations of the species in its genetic characteristics.
A population segment needs to satisfy only one of these conditions
to be considered significant. Furthermore, other information may be
used as appropriate to provide evidence for significance.
In our 2001, 12-month finding on the Columbia Basin DPS, we found
that the population was significant to the western subspecies because
it occurred in a unique ecological setting to the subspecies and
because loss of the Columbia Basin would have resulted in a significant
gap in the range of the western subspecies (66 FR 22984, May 7, 2001,
p. 22992). Below we reevaluate these findings giving consideration to
new information and conducting our analysis on the significance of the
population segment to the greater sage-grouse species, rather than to
the no-longer-recognized western subspecies.
Unusual or Unique Ecological Setting--In our 12-month finding
published in 2001, relative to unusual or unique ecological setting, we
found that:
(1) The Columbia Basin is a unique ecosystem, whose
characteristics were the result of a unique combination of
elevation, soil, influences of historical geologic processes, and
climatic conditions; as a result, sagebrush habitats in the Columbia
Basin could be differentiated from sagebrush habitats outside of the
Columbia Basin by a number of floristic characteristics, including
the presence of Juniperus spp. (juniper) woodlands, salt-desert
shrub habitats, and the type and distribution of sagebrush taxa and
forb species;
(2) Sage-grouse occupying the Columbia Basin were,
``necessarily,'' differentially exploiting the resources that are
available, as compared with sage-grouse in central and southern
Oregon; and that these differences in exploitation of resources had
bearing on their food and cover preferences, distribution,
movements, reproductive fitness, and ultimately, their survival; and
(3) The unique elements of the Columbia Basin held different
management implications for western sage-grouse within this
ecosystem (66 FR 22984, May 7, 2001).
Below, we reevaluate these findings giving consideration to new
information and conducting our analysis on the entire greater sage-
grouse range, rather than the no-longer-recognized western subspecies
range.
As stated in the DPS Policy, occurrence in an unusual ecological
setting may indicate that a population segment represents a significant
resource warranting conservation under the Act (61 FR 4722, February 7,
1996). In considering whether the population occupies an ecological
setting that is unusual or unique for the taxon, we evaluate whether
the habitat includes unique features not used by the taxon elsewhere
and whether the habitat shares many features common to the habitats of
other populations. We further evaluate whether any of these differences
could play an important biological role with respect to the remainder
of the taxon, such as by contributing to the taxon's prospects for
survival, to a degree that the population warrants conservation under
the Act.
The Columbia Basin represents a separate floristic province within
the range of the greater sage-grouse and is unique in that none of the
ecosystems within the range of the greater sage-grouse are exactly the
same with respect to elevation, soil, influences of historical geologic
processes, and climatic conditions. As we found in 2001, these
differences have resulted in some differences to the types of sagebrush
and other vegetative components present in the ecosystem (66 FR 22984,
May 7, 2001, pp. 22989-22991). However, simply the occurrence of a
species within a definable ecosystem does not, by itself, make it
significant to the taxon under the DPS Policy. Sagebrush-dominated
plant communities vary considerably across the range of greater sage-
grouse (West and Young 2000, pp. 259-267), and specific habitat
components used by greater sage-grouse can vary due to biotic and
abiotic factors (Connelly et al. 2011a, p. 70). Yet, common to all
greater sage-grouse is the use of sagebrush and their dependence on
this habitat for food and cover during all periods of the year
(Connelly et al. 2004, pp. 4-1--4-19).
The greater sage-grouse appears to be fairly adaptable to a variety
of conditions as it: (1) Occurs throughout a wide variety of sagebrush
habitats in western North America; (2) occurs and breeds from less than
610 m (2,000 ft) to more than 3,000 m (9,842 ft) above sea level; (3)
spans a variety of climatic conditions from relatively wet montane
sagebrush communities to dry sagebrush types; and (4) uses a wide range
of understory vegetation during the breeding and brood-rearing periods
(Aldridge and Brigham 2002, pp. 440-442; Connelly et al. 2004, pp. 4-
1--4-19; Schroeder et al. 2004, pp. 366-368; Guttery 2011, pp. 20, 50-
51). Stated more simply, the species is able to occupy a broad range of
sagebrush communities throughout western North America. Therefore, the
ability of the Columbia Basin population of greater sage-grouse to
exist within a particular amalgamation of habitat features does not
necessarily contribute to the survival of the greater sage-grouse
species, or otherwise serve an important biological role with respect
to the taxon.
The degree to which regional differences in habitat components
affect greater sage-grouse distribution, reproductive fitness, and
survival is complex (Connelly et al. 2011a, pp. 71-83). Greater sage-
grouse in the Columbia Basin are comparable to other populations of
greater sage-grouse in their date of nest initiation, variation in the
date of nest initiation, length of incubation, nest success, lek
visitation by females, and fidelity of males to leks (Schroeder 1997,
pp. 937-939; Schroeder and Robb 2003, pp. 295-296). Differences
reported for the Douglas County population include higher reproductive
effort than greater sage-grouse in other regions and lower fidelity to
nest sites (Schroeder 1997, p. 939; Schroeder and Robb 2003, p. 296).
The degree to which these differences are the result of habitat
fragmentation in north-central Washington or other factors is unknown
(Schroeder and Robb 2003, p. 297). Nevertheless, greater sage-grouse in
the Columbia Basin appear to have reproductive output and survival
estimates that are within the range of values observed elsewhere across
the range of the species (Stinson et al. 2004, p. 6, Connelly et al.
2011b, pp. 56-58).
Under the DPS Policy, a determination of significance can be made
if a population segment persists in a unique or unusual ecological
setting that is significant to the taxon to which it belongs. Although
the Columbia Basin differs in some ways from other habitats that the
greater sage-grouse inhabits, this is not unusual for the greater sage-
grouse rangewide given the diversity of
[[Page 59863]]
sagebrush habitats the species utilizes across its range. Further,
nothing about the Columbia Basin population's life history or habitat
use is unique when compared to other populations across the range.
Given that Columbia Basin habitat and birds fall within the natural
range of variability for greater sage-grouse across its range, we
conclude that the best information available indicates that the
Columbia Basin population is not significant to the species as a whole
because of persistence in an unusual or unique ecological setting.
Significant Gap in the Range of the Taxon--In our 12-month finding
published in 2001, relative to gap in the range, we found that:
(1) Columbia Basin greater sage-grouse represent the extreme
northwestern extent of greater sage-grouse range and the
northernmost extent of the historical distribution of the western
sage-grouse;
(2) The Columbia Basin historically encompassed roughly 55
percent of the entire range of western sage-grouse; and
(3) Due to its potential isolation, greater sage-grouse in the
Columbia Basin are likely experiencing increased directional
selection due to marginal and varied habitats at the taxon's range
periphery, exhibiting genetic consequences of reduced gene flow from
other population segments, and responding (and will continue to
respond) to the different anthropogenic (human caused) influences in
the region (66 FR 22984, May 7, 2001).
Below, we reevaluate these findings giving consideration to new
information and conducting our analysis on the entire greater sage-
grouse range, rather than the previously designated western subspecies'
range.
Greater sage-grouse in the Columbia Basin are the northwestern
extent of the sage-grouse range, but greater sage-grouse in Alberta and
Saskatchewan and northern Montana make up the northernmost extent of
the range. To assess the degree to which being the northwestern extent
of the range makes the population significant, we must consider the
proportion of individuals in this extent of the range and the amount of
habitat available there for greater sage-grouse; being a peripheral
population, by itself, does not connote significance to the taxon.
Relative to the rest of the range of greater sage-grouse (excluding the
bi-State DPS), the Columbia Basin is estimated to contain only 0.6
percent of the rangewide population estimate (Doherty et al. 2015,
entire), 2.7 percent of the rangewide distribution of sagebrush
habitats (Knick 2011, p. 25), and 4 percent of the total occupied range
(Knick 2011, p. 25).
In addition, given new information since 2001, we must reevaluate
our conclusion relative to the likelihood of directional selection due
to the isolation of this peripheral population. The best available
population and genetic data suggest that greater sage-grouse in the
Columbia Basin have undergone a severe reduction in population size,
and are now isolated from other populations (Schroeder et al. 2000, pp.
106-109; Oyler-McCance et al. 2005, p. 1307). This has resulted in the
loss of genetic diversity, and the population now has the lowest levels
of genetic diversity, as measured in mitochondrial and nuclear markers,
reported for any greater sage-grouse population (Oyler-McCance et al.
2005, p. 1307). However, the extent to which this isolation is causing
``selection'' or has resulted in the development of traits in greater
sage-grouse that are adapted to the Columbia Basin is not definitive.
Morphological or behavioral differences in greater sage-grouse may
be indicators of adaptive traits not revealed through analysis of
neutral genetic markers. Comparisons of greater sage-grouse in the
Columbia Basin with other greater sage-grouse populations suggest they
are heavier than birds in Idaho, Nevada, Oregon, and California, but
are similar in mass to greater sage-grouse in northern Colorado to
Alberta (Schroeder 2008, pp. 5-9). Although some wing and tail
measurements differed between greater sage-grouse from the Columbia
Basin and elsewhere, the comparison included only a small number of
other populations, measurement bias was unknown, and the conclusion of
the author was that the available morphometric data did not illustrate
any unique morphological characteristics in the Columbia Basin birds
(Schroeder 2008, p. 10). Similarly, an assessment of the available
behavioral data did not reveal any substantial differences in greater
sage-grouse behavior in the Columbia Basin (Schroeder 2008, pp. 9-10).
In summary, loss of the Columbia Basin population would not result
in a significant gap in the range of greater sage-grouse. This area
represents less than 1 percent of the rangewide population estimates
and less than 3 percent of sagebrush habitat. While loss of this
population would reduce the occupied range of the species, it would not
remove a habitat type found nowhere else in the range nor would it
create a barrier to the movement of birds from other populations.
Although the Columbia Basin population is peripheral and isolated,
there is no evidence that it has been isolated for long periods of
evolutionary time, resulting in significant adaptive traits that might
indicate its loss would be significant to the taxon.
Marked Genetic Differences--In our 12-month finding published in
2001, we found that the results from rangewide genetic studies were
``suggestive'' and demonstrated a marked difference between the
population segment of greater sage-grouse within the Columbia Basin and
the population segment in central and southern Oregon. However, we
concluded that these results did not necessarily indicate that genetic
differentiation of this population segment is significant to the
remainder of the taxon, as we were unsure to what extent the forces of
isolation, adaptive change, genetic drift, and/or inbreeding may have
influenced the regional profiles of greater sage-grouse (66 FR 22984,
May 7, 2001). Below, we reevaluate these findings giving consideration
to new information and conducting our analysis on the entire greater
sage-grouse range, rather than the previously recognized western
subspecies range.
Additional rangewide studies of neutral genetic variation since
2001 support the conclusion that greater sage-grouse in the Columbia
Basin segregate from the other populations when evaluated using
quantitative measures of genetic diversity (Benedict et al. 2003, pp.
308-309; Oyler-McCance et al. 2005, pp. 1304-1305). The reason that
genetic diversity can be significant to a species is that the presence
of novel haplotypes (set of genes inherited from one parent) or alleles
(a variant form of a gene) could provide the species with adaptive
capacity if faced with deteriorating environmental conditions. However,
the quantitative differences in genetics between this population and
the species as a whole were largely the result of greater sage-grouse
in the Columbia Basin having extremely low levels of genetic diversity
(Oyler-McCance et al. 2005, p. 1307), rather than a being a function of
having a large proportion of novel haplotypes or alleles.
Evaluation of mitochondrial DNA (mtDNA) revealed that approximately
90 percent of the sampled greater sage-grouse in the Columbia Basin had
a single mitochondrial DNA haplotype, while only one novel haplotype
was present (Oyler-McCance et al. 2005, pp. 1298-1300). This novel
haplotype (Haplotype DS) was in the same grouping as one of the most
common haplotypes observed in greater sage-grouse (Haplotype X) with
only a single base-pair difference from this common haplotype (Oyler-
McCance et al. 2005, pp. 1299, 1301). This indicates that only
[[Page 59864]]
a single mutational event was necessary to produce this novel
haplotype, which could have occurred over a relatively short amount of
evolutionary time. Thus, the available genetic evidence from studies of
mtDNA does not lead us to conclude that the populations in Washington
are markedly genetically different from other populations of greater
sage-grouse found throughout the Great Basin.
Nuclear genetic data evaluated using microsatellite markers showed
that populations in the Columbia Basin had the lowest genetic diversity
of the 46 populations of greater sage-grouse studied (Oyler-McCance et
al. 2005, p. 1307). Although genetic distance comparisons showed that
the Columbia Basin populations were some of the most differentiated of
all greater sage-grouse populations, this finding is largely a
reflection of the small number of alleles found there (Oyler-McCance et
al. 2005, p. 1307). Therefore, while statistically different, these
differences cannot be attributed to greater sage-grouse being isolated
for a long period of evolutionary time, which might have indicated that
they had developed some adaptive traits not found elsewhere in the
range of greater sage-grouse.
Summary for Significance--We have considered significance of the
Columbia Basin population by evaluating the uniqueness of the
ecological setting; the potential for a significant gap in the range of
greater sage-grouse if the population was lost; and genetic
distinctness from other greater sage-grouse populations. We conclude
that the Columbia Basin greater sage-grouse do not occur in a unique
ecological setting, and their loss would not result in a significant
gap in the range of the greater sage-grouse. While genetic diversity is
low, the population is not markedly genetically different from other
populations of greater sage-grouse. Based on this information, we find
that this population does not meet the definition of significance as
defined in our 1996 DPS policy.
Greater Sage-Grouse Listable Entity Summary
In 2010, we determined that the bi-State population qualified as a
DPS under the Act. At that time, we deferred any other decisions about
potential DPSs, including an assessment of the Columbia Basin
population, until this status review. After consideration of the
distinctness and significance of the Columbia Basin population, giving
consideration to new information, and conducting our analysis on the
significance of the population to the greater sage-grouse rangewide
instead of to the previously recognized western subspecies, we have
determined that it does not meet the criteria for a DPS. Therefore, the
Columbia Basin population will be considered together with the other
populations in the greater sage-grouse range (hereafter referred to as
sage-grouse). Specifically, when we discuss sage-grouse in the Great
Basin, we are including Columbia Basin in those discussions. The
remainder of this status review will consider all populations and
habitat across the range of the species, with the exception of the bi-
State DPS.
Distribution
Prior to European settlement of western North America in the 19th
century, sage-grouse occurred in an area that today would cover 13
States and 3 Canadian provinces--Arizona, California, Colorado, Idaho,
Montana, Nebraska, Nevada, North Dakota, Oregon, South Dakota, Utah,
Washington, Wyoming, British Columbia, Alberta, and Saskatchewan
(Schroeder et al. 2004, p. 369; Figure 1). Sagebrush habitats that
potentially supported sage-grouse occurred over approximately 1.2
million square kilometer (km\2\) (460,000 square miles (mi\2\)) before
1800 (Schroeder et al. 2004, p. 366). Currently, sage-grouse occur in
11 States (California, Colorado, Idaho, Montana, Nevada, North Dakota,
Oregon, South Dakota, Utah, Washington, Wyoming), and 2 Canadian
provinces (Alberta and Saskatchewan), occupying approximately 56
percent of their historical range (Schroeder et al. 2004, p. 369;
Figure 1). Approximately 2 percent of the total range of sage-grouse
occurs in Canada, with the remainder in the United States (Knick 2011,
p. 24).
[[Page 59865]]
[GRAPHIC] [TIFF OMITTED] TP02OC15.000
The Western Association of Fish and Wildlife Agencies (WAFWA)
Conservation Strategy for Greater Sage-grouse (Stiver et al. 2006, p.
1-6) delineated seven sage-grouse Management Zones (MZ; Figure 1) to
guide conservation and management. The boundaries of these MZs were
delineated based on their ecological and biological attributes
(floristic provinces) rather than on political boundaries (Stiver et
al. 2006, p. 1-6); therefore, vegetation is similar within each MZ, and
sage-grouse are likely to respond similarly to environmental factors
and management actions. For this reason, we conducted analyses for some
potential threats at the MZ-scale. While the Conservation Objectives
Team (COT) Report (see Conservation Objectives Team Report below for
further description) identifies Priority Areas for Conservation (PACs)
as the areas needed for the species persistence, not all data used in
our potential analyses was available at the PAC scale and the data did
not provide a consistent rangewide data set, so PACs were not used as
the unit of analysis for the impact analysis.
Sagebrush occurs in two natural vegetation types that are
influenced by elevation, temperature, and patterns of precipitation
(Miller et al. 2011, pp. 147-148). In general, the Great Basin portion
of the range, which encompasses MZs III, IV, V, and VI, is lower in
elevation and experiences less precipitation. The Rocky Mountain
portion of the range, which encompasses MZs I, II, and VII, generally
is higher in elevation and has greater precipitation. Due to the
variance in the ecological conditions, the regions have differential
susceptibility to potential threats (see Summary of Information
Pertaining to the Five Factors, below).
Sage-grouse currently occupy a portion of their historical range
and are more concentrated in certain Core Areas. Sage-grouse have been
extirpated from Nebraska, British Columbia, and Arizona (Schroeder et
al. 1999, p. 2; Young et al. 2000 p. 445; Schroeder et al. 2004, p.
369). Changes from the estimated historical distribution are the result
of sagebrush alteration and degradation (Schroeder et al. 2004, p. 363;
Knick and Connelly 2011, p. 6). The current distribution of sage-grouse
is estimated at 703,453 km\2\ (271,604 mi\2\; USFWS 2015a).
Approximately half of the sage-grouse occur in the Rocky Mountain
portion of the range and half in the Great Basin portion of the range.
Management Zones with the highest relative amounts of birds are MZ II
(37.5 percent of the rangewide population estimate) and MZ IV (30.7
percent of the rangewide population estimate). As a result, impacts in
these MZs may have greater impact to the species rangewide (see Summary
of Information Pertaining to the Five Factors, below).
Habitat
Sage-grouse depend on a variety of shrub-steppe habitats throughout
their life cycle and are considered a sagebrush obligate (Patterson
1952, p. 48). Sage-grouse use a variety of sagebrush species such as
Artemisia tridentata wyomingensis (Wyoming big sagebrush), A. t.
vaseyana (mountain big sagebrush), A. t. tridentata (basin big
sagebrush), A. nova (black sagebrush),
[[Page 59866]]
A. frigida (fringed sagebrush), A. cana (silver sagebrush), and A.
arbuscula (little sagebrush) (Miller et al. 2011, pp. 145-151). Sage-
grouse distribution is strongly correlated with the distribution of
sagebrush vegetation (Schroeder et al. 2004, p. 364).
Sagebrush is the most widespread vegetation in the intermountain
lowlands in the western United States (West and Young 2000, p. 259).
Sagebrush occurs in two natural vegetation types that are delineated by
temperature and patterns of precipitation (Miller et al. 2011, pp. 147-
148). The first, sagebrush-steppe, ranges across the northern portion
of sage-grouse occupied range, from British Columbia and the Columbia
Basin, through the northern Great Basin, Snake River Plain, and
Montana, and into the Wyoming Basin and northern Colorado. Sagebrush is
a co-dominant plant, along with perennial bunchgrasses, in sagebrush-
steppe. The second vegetation type, Great Basin sagebrush, occurs south
of sagebrush-steppe, and extends from the Colorado Plateau westward
into Nevada, Utah, and California (Miller et al. 2011, pp. 147-148). In
the Great Basin sagebrush zone, sagebrush is usually the dominant plant
layer accompanied by sparse understories. Other sagebrush types within
the sage-grouse occupied range include mixed-desert shrubland in the
Bighorn Basin of Wyoming, and grasslands in eastern Montana and Wyoming
that also support silver sagebrush and A. filifolia (sand sagebrush)
(Miller et al. 2011 p. 148).
Sagebrush is long-lived, with plants of some species surviving up
to 150 years (West 1983, p. 340). Sagebrush is resistant to
environmental extremes, with the exception of fire and occasionally
defoliating insects (West 1983, p. 341). Natural sagebrush re-
colonization depends on the presence of adjacent live plants for a seed
source or on the seed bank, if present (Miller and Eddleman 2000, p.
17). Although seed viability and germination are high, seed dispersal
is limited (West and Young 2000, p. 260). Additionally, sagebrush seeds
typically do not remain viable for more than one growing season, and
evidence suggests that seeds do not persist in the soil more than 1
year; however, seeds have higher odds of persisting in the seed bank if
they are buried (Wijayratne and Pyke 2012, p. 438). Productivity of
plants associated with the sagebrush understory varies widely and is
influenced by moisture availability, soil characteristics, climate, and
topographic position (Miller et al. 2011, pp. 151-154). Forb abundance
can be highly variable from year to year and is largely affected by the
amount and timing of precipitation.
Sage-grouse depend on large areas of contiguous sagebrush to meet
all seasonal habitat requirements (Connelly et al. 2011a, pp. 82-83;
Wisdom et al. 2011, p. 465). Sage-grouse exhibit strong site fidelity
(loyalty to a particular area, even when the area no longer provides
habitat) to seasonal habitats used for breeding, nesting, brood-
rearing, and wintering (Connelly et al. 2004, p. 3-1; Connelly et al.
2011b, p. 60). Little information is available regarding minimum
sagebrush patch sizes required to support populations of sage-grouse.
Home range calculations range from 4 to 615 km\2\ (1.5 to 237.5 mi\2\;
Connelly et al. 2011b, p. 60), and migratory populations (which are
discussed in more detail below) may use areas exceeding 2,700 km\2\
(1,042 mi\2\, 667,185 acres; Leonard et al. 2000, p. 269, Davis et al.
2014, p. 713). Large seasonal and annual movements emphasize the
landscape nature of the species (Knick et al. 2003, p. 624; Connelly et
al. 2011b, p. 60).
Federal lands encompass the majority of the sage-grouse occupied
range, with MZs III, IV, and V being more than 60 percent federally
owned (Table 2). Primary Federal land managers within the sage-grouse
occupied range include Bureau of Land Management (BLM) and the U.S.
Forest Service (USFS), which together manage 51 percent of the sage-
grouse occupied range. Other Federal owners include the National Park
Service, Department of Defense (DoD), the Service, and Department of
Energy (DOE). Private lands comprise approximately 39 percent of the
species' occupied range, with the largest proportion of private lands
occurring in MZs I and VI. Tribal lands cover approximately 3 percent,
and State lands cover approximately 5 percent of the current sage-
grouse occupied range.
Table 2.--Percent of the Currently Occupied Sage-Grouse Range Within Management Zones, by Surface Managing
Agency
----------------------------------------------------------------------------------------------------------------
Other
Management zone BLM USFS Federal Tribal State Private
----------------------------------------------------------------------------------------------------------------
I Great Plains...................................... 16 2 1 5 8 69
II Wyoming Basin.................................... 49 2 2 3 6 38
III Southern Great Basin............................ 69 14 1 1 2 13
IV Snake River Plain................................ 52 8 3 1 5 30
V Northern Great Basin.............................. 62 7 6 1 2 23
VI Columbia Basin................................... 5 0 13 11 7 63
VII Colorado Plateau................................ 39 0 0 25 11 25
-----------------------------------------------------------
Rangewide Totals................................ 45 6 2 3 5 39
----------------------------------------------------------------------------------------------------------------
Life-History Characteristics and Seasonal Habitat Selection
During the breeding season, male sage-grouse gather together to
perform courtship displays on areas called leks. These areas are often
characterized by having bare soil, shortgrass-steppe, windswept ridges,
exposed knolls, or other relatively open sites (Connelly et al. 2004,
pp. 3-7). Leks are often surrounded by denser shrub-steppe cover used
for shelter and to escape predators. Leks can be formed
opportunistically at any appropriate site within or adjacent to nesting
habitat (Connelly et al. 2000a, p. 970), and, therefore, lek habitat
availability is not considered to be a limiting factor for sage-grouse
(Schroeder et al. 1999, p. 4).
After mating, females travel to nesting areas characterized by
sagebrush with an understory of native grasses and forbs that provides
cover, an insect prey base, and herbaceous forage for pre-laying and
nesting females (Connelly et al. 2000a, p. 971; Connelly et al. 2004,
pp. 4-18). Females typically move 1.3 to 5.1 km (0.8 to 3.2 mi) from
leks to nest (Connelly et al. 2011b, p. 62), although the juxtaposition
of habitats, disturbance, and the extent of habitat fragmentation may
influence nest location distance from leks (Connelly et al. 2011b, p.
62 and references therein).
[[Page 59867]]
Sage-grouse clutch size ranges from six to nine eggs with an average of
seven eggs (Connelly et al. 2011b, p. 62). Males do not participate in
incubation of eggs or rearing chicks.
The likelihood of a female nesting in a given year averages 82
percent in the eastern portion of the range and 78 percent in the
western portion of the range (Connelly et al. 2011b, p. 63). Nest
success varies widely, and the average nest success for sage-grouse is
51 percent in non-altered habitats and 37 percent in altered habitats
(Connelly et al. 2011b, p. 58). Re-nesting occurs only if the original
nest is lost (Schroeder et al. 1999, p. 11) with an average re-nesting
rate of 28.9 percent (Connelly et al. 2004, pp. 3-11). Approximately
2.25 chicks per female may be necessary to maintain stable to
increasing populations (Connelly et al. 2000a, p. 970). Due to low
chick survival and limited re-nesting, there is little evidence that
populations of sage-grouse produce large annual surpluses (Connelly et
al. 2011b, p. 67).
Females rear their broods near the nest site for the first 2 to 3
weeks following hatching (Connelly et al. 2004, p. 4-8). Forbs and
insects are essential nutritional components for chicks (Connelly et
al. 2004, p. 4-9). Therefore, early brood-rearing habitat must provide
adequate cover adjacent to areas rich in forbs and insects to ensure
chick survival during this period (Connelly et al. 2004, p. 4-9).
Approximately 12 weeks after hatching, sage-grouse gradually move
from sagebrush uplands to more mesic (wet) areas during the late brood-
rearing period (Peterson 1970, p. 149) as herbaceous vegetation dries
during the hot summer (Connelly et al. 2000a, p. 971). Summer use areas
can include sagebrush habitats as well as riparian areas, wet meadows,
and Medicago spp. (alfalfa) fields (Schroeder et al. 1999, p. 4). These
areas provide an abundance of forbs and insects for both females and
chicks (Schroeder et al. 1999, p. 4; Connelly et al. 2000a, p. 971).
Males and broodless females will also use more mesic areas in close
proximity to sagebrush cover during the late summer, often arriving
before females with broods (Connelly et al. 2004, p. 4-10).
During the winter, sage-grouse depend almost exclusively on
sagebrush for both food and cover (Thacker et al. 2012, p. 588). Winter
areas are characterized by large expanses of big sagebrush and tall
shrubs, predominantly located on relatively gentle south- or west-
facing slopes that provide more favorable thermal conditions and above
snow forage (Doherty et al. 2008, p. 192; Hagen et al. 2011, p. 536;
Dzialak et al. 2013, p. 16). The timing of movement to winter ranges
varies considerably, but peaks around mid-October through late November
(Schroeder et al. 1999, p. 10). Sage-grouse exhibit fidelity to winter
sites (Berry and Eng 1985, p. 239); however, some birds shift winter
habitat use in response to severe conditions (Smith 2010, p. 8).
The availability of winter habitat is important to sage-grouse
persistence. Across the range of sage-grouse, winter habitat comprised
from 6.8 to 18 percent of the total landscape used by different
populations (Dzialak et al. 2013, p. 10; Smith et al. 2014, p. 12).
Winter habitat availability is reduced during severe winters when heavy
snowfall and increasing snow depths further decrease or even eliminate
access to sagebrush. During harsh winters, birds become even more
concentrated in the few remaining areas of exposed sagebrush (Hupp and
Braun 1989, p. 828). As a result, the loss of winter habitats used in
harsh winter conditions can have impacts disproportionate to their
makeup on the landscape (Swenson et al. 1987, p. 128). During the
average winter, sage-grouse typically experience low over-winter
mortality, estimated at 2 to 4 percent, but could be as high as 15
percent (Connelly et al. 2000b, p. 229; Wik 2002, p. 40; Sika 2006, p.
90; Bruce et al. 2011, p. 421). During notably severe winters, however,
higher mortality rates have been documented (Moynahan et al. 2006, p.
1,536; Anthony and Willis 2008, p. 544). In some cases, the locations
of these wintering habitats are known, but there is not a consistent
data set of this information across the range of the species.
The distances sage-grouse move between seasonal habitats are highly
variable across the occupied range (Connelly et al. 1988, pp. 119-121).
Sage-grouse may migrate between two or three distinct seasonal ranges,
or not migrate at all. Non-migratory sage-grouse have seasonal
movements of less than 10 km (6.2 mi; Connelly et al. 2000a, pp. 968-
969), while birds in migratory populations (which are discussed in
detail below) may travel well over 100 km (62 mi) (Tack et al. 2012, p.
65).
Despite the documentation of extensive seasonal movements in this
species (Fedy et al. 2012, p. 1066; Tack et al. 2012, p. 65; Davis et
al. 2014, p. 716), the dispersal abilities of sage-grouse are assumed
to be low. One study estimated median natal dispersal distances of 8.8
km (5.5 mi) for females and 7.4 km (4.6 mi) for males (Dunn and Braun
1985, p. 622); another study estimated natal dispersal distances of 3.8
km (2.4 mi) for males and 2.7 km (1.7 mi) for females (Thompson 2012,
p. 193). Small-scale differences in habitat are not likely to influence
sage-grouse dispersal at landscape scales. Rather, the arrangement of
habitat quality was more influential on sage-grouse dispersal (Row et
al. 2015, pp. 1964-1965) than the presence of unsuitable habitats.
Sage-Grouse Connectivity and Landscape Genetics
Habitat-based measures show that maintaining population
connectivity is essential for sage-grouse population persistence.
Connectivity between sage-grouse populations declined from 1965 to 2007
due to the loss of leks that historically provided connectivity and
lower numbers of birds left to disperse (Knick and Hanser 2011, p.
395). As connectivity declined, isolated leks, those leks with low
connectivity, were lost first (Knick and Hanser 2011, p. 395), with
small decreases in lek connectivity resulting in large increases in
probability of lek abandonment (Knick and Hanser 2011, p. 403). This
suggests that as connectivity between leks at the edge of the range is
lost, the probability these leks will persist is likely to decline
(Knick and Hanser 2011, p. 396).
Maintaining sagebrush distribution is the most important factor in
maintaining sage-grouse population connectivity (Knick and Hanser 2011,
p. 404). Habitat loss decreases the connectivity between seasonal
habitats, increasing the potential that a population may be lost
(Doherty et al. 2008, p. 194). Loss of connectivity can increase
population isolation (Knick and Hanser 2011, p. 402 and references
therein) and, therefore, lead to a higher probability of loss of
genetic diversity and extirpation due to stochastic events. Habitat
fragmentation, habitat loss, and altered habitat disturbance regimes
(e.g., fire frequency), rather than stochastic events, were identified
as the likely primary influences on sage-grouse population trend (Knick
and Hanser 2011, p. 403). Large areas of unsuitable habitat, such as
mountain ranges, have been found to segregate sage-grouse and restrict
genetic mixing (Row et al. 2015, p. 1965; Crist et al. 2015, p. 16).
Studies of genetic information among populations have revealed
patterns of sage-grouse movement and isolation across the landscape. A
genetic analysis revealed that the movement of individuals tends to be
among neighboring populations and is unlikely to occur over great
distances (Oyler-McCance et al. 2005, entire; Oyler-
[[Page 59868]]
McCance and Quinn 2011, p. 91). Genetic analysis further indicated that
sage-grouse in fragmented areas on the periphery of the range in
Colorado, Utah, and Washington were not extensively moving between or
breeding with other nearby populations (Oyler-McCance and Quinn 2011,
p. 92).
A recent analysis shows that core population centers and the
habitat between those centers are important for maintaining
connectivity (Crist et al. 2015, p. 18). This study examined the
connectivity of populations across the range of sage-grouse and found
that 20 of 188 priority areas contributed the most to range-wide
connectivity (Crist et al. 2015, p. 11). These results affirm the
conclusion by Knick and Hanser (2011) that relatively large populations
in southwestern Wyoming, and straddling the borders between Idaho,
Nevada, Oregon, and Utah, were the most highly connected areas within
the range of sage-grouse (Crist et al. 2015, p. 11) and, therefore,
essential to species persistence. However, other priority areas likely
contribute to maintaining connections by serving as habitat pathways
between and within priority areas, or by maintaining local connectivity
in an area (Crist et al. 2015, p. 11). Active management will be
essential to maintain connectivity between priority areas and to ensure
long-term species persistence (Crist et al. 2015, p. 16).
Population Abundance and Trends
Estimating population sizes and trends of sage-grouse is difficult
due to the large, 11-State range of the species, incomplete sampling,
and challenges counting females (Garton et al. 2011, pp. 295-296). As a
result, sage-grouse population sizes are estimated from counts of male
sage-grouse on leks during the breeding season (Garton et al. 2011, p.
296). While lek surveys do not provide an accurate estimate of total
population, the annual counts of males on leks provide the best
indicator of sage-grouse trends (Stiver et al. 2006, p. 3-2; WAFWA
2015, p. 2). The relationship of lek survey data to actual population
size is unknown (WAFWA 2008, p. 3). When counts are done according to a
standardized protocol, these counts can be a useful metric of long-term
population trends (Connelly et al. 2004, p. 6-6; Johnson and Rowland
2007, p. 20; WAFWA 2008, p. 3, Blomberg et al. 2013a, p. 1590, Gregory
and Beck 2015, p. 7).
Recent work by MacKenzie and Evans (2015) has indicated the current
sampling framework across the range of sage grouse which makes
interpreting trend and population data difficult. However, their
analysis has indicated that there has been a long-term decline in the
number of males per lek which is consistent with other recent trend
analyses (Garton et al. 2015 and WAFWA 2015). The analysis goes on to
indicate that over time and in virtually all management zones the
probability of extinction of leks has been relatively stable.
Additionally, the probability of recolonization of leks had been
decreasing until the mid-1990s but that probability has stabilized to
the current point in time. The conclusion of this work indicates that
over the last 15 years the rate of extinction of leks and the
probability of recolonization of leks has been remarkably stable.
Sage-grouse populations increase and decrease over time, making
assessments of population size and short-term trends difficult. The
length of these population cycles appears to vary across the range, but
most populations have an 8- to 10-year population cycle (Rich 1985, pp.
5-8; Fedy and Doherty 2011, pp. 919-922). The drivers of the cycle are
unknown, but may be caused by the amount and timing of precipitation
(Rich 1985, p. 14; Fedy and Doherty 2011, p. 921).
In the 2010 finding, we concluded that rangewide, sage-grouse were
experiencing a long-term decline in abundance (75 FR 13910, March 23,
2010, pp. 13920-13923). We noted the difficulty in determining the
actual rate and magnitude of the declines, but noted that three
independent studies had concluded that declines were occurring
(Connelly et al. 2004, p. 6-71; WAFWA 2008, p. 12; Garton et al. 2011,
pp. 307-359). In particular, the 2008 WAFWA analysis of lek-count data
collected from 1965 to 2007 estimated a long-term decline of 3.1
percent per year during 1965 to 2007 (WAFWA 2008, p. 12). That
assessment also found the rate of decline slowed from 1985 to 2007 to
an average annual decline of 1.4 percent (Connelly et al. 2004, p. 6-
71; WAFWA 2008, p. 58). A 2011 study (Garton et al. 2011, entire)
assessed declining trends similar to the Connelly et al. (2004) and
WAFWA (2008) analyses. Garton et al. (2011, p. 374) also predicted
future population declines.
Both Garton et al. (2011) and WAFWA (2008) have updated their lek
trend analyses to include additional data from 2013 through 2015
(Garton et al., 2015; WAFWA 2015). Garton et al. (2015) examined the
trend in the years 1965-2013 and reported that the rate of decline has
decreased for MZs I, II, and VI when compared to their previous
analyses (1965-2007). There was insufficient data from the other MZs to
do a similar comparison, but the updated analyses suggest that MZs I-VI
have all experienced a long-term abundance decline (Garton et al.
2015). Insufficient data in MZ VII prevented a trend analysis in both
Garton et al. 2011 and Garton et al. 2015. The updated WAFWA analyses
reported declines in all MZs since 1965, with the exception of MZ III,
where a slight increase was noted. In MZ III, the increasing trend was
not uniform across the management zone, as peripheral populations are
continuing to decline. The rates of decline have increased in MZs I and
V in recent years (WAFWA 2015, pp. 17, 26), while the overall rate of
decline across the species' range has slowed in recent years. In five
MZs, most of the population estimates are primarily trending down at
the periphery of the species' range (WAFWA 2015, p. 1), indicating that
the denser, interior population areas are more insulated from declining
trends. The number of males counted on leks range-wide in 2015 has
increased 63 percent since the most recent population trough in 2013
(WAFWA 2015, p. 1).
Analysis of trend data is sensitive to the start and stop dates of
the period analyzed due to the cyclic nature of sage-grouse
populations. Garton et al. (2015) examined data only through 2013, at
which time most populations were experiencing a cyclic decline. Lek
counts increased in nearly all locations in 2014 and 2015 (WAFWA 2015,
p. 1). However, both updated trend analyses are consistent with
previous studies showing a long-term rangewide decline of sage-grouse
has occurred since 1965 (75 FR 13910, March 23, 2010, p. 13922). The
rate of decline lessened during 1985 to 2007, with an average annual
decrease of 1.4 percent (Connelly et al. 2004, p. 6-71; WAFWA 2008, p.
58). The updated WAFWA analysis reported that, rangewide, rates of
declines were less for the past 10 years (2005-2015) than the long-term
decline rates (1965-2015) (WAFWA 2015, pp. 10-11).
Abundance and Distribution Models
We developed two models for use in this status assessment: (1)
Population Index Model and (2) Occupied Breeding Habitat Distribution
Model. These models were developed to evaluate risk to sage-grouse
populations and benefits of conservation actions designed to ameliorate
those risks. Our models, built with collaboration from WAFWA, are used
as metrics for risk analyses and general Geographic Information System
(GIS) queries. Full discussions of how the models were created and used
are below.
[[Page 59869]]
In the 2010 finding, we assessed impacts to sage-grouse and their
habitat based on the portion of occupied range where a disturbance
occurred. This approach was based on the best available GIS data at
that time, but may have overestimated some impacts, because all lands
within the occupied range were assumed to provide habitat. We used this
analysis in 2010 because current information available to us about the
occupied sage-grouse range was developed at a very broad scale and
included large areas of non-habitat. The Occupied Breeding Habitat
Distribution Model was developed to more accurately portray the
breeding areas that are important to sage-grouse. The Occupied Breeding
Habitat Distribution Model uses sage-grouse lek data as a proxy for
landscapes important to breeding sage-grouse, because leks are central
to the breeding ecology of sage-grouse. We developed a model that
statistically links habitat characteristics around known lek locations
to habitat features such as the amount of sagebrush or tree cover
within a 6.4-km (4-mi) radius. The output of the model is a prediction
of the probability that each 120-m\2\ (393-ft\2\) area within a sage-
grouse management zone provides habitat to support a breeding
population of sage-grouse (Figure 2). These spatial predictions of
occupied breeding habitat are then able to be linked with spatially
explicit risk models to better understand how potential impacts to
sage-grouse overlap with breeding habitat. A consistent data set for
other important seasonal habitat is not available, so while the model
may not specifically include other seasonal habitats, it is the best
available information for predicting impacts to the species
consistently across the range. This model was the primary tool used to
assess how the location and scope of potential threats may impact the
species currently and into the future (see Summary of Information
Pertaining to the Five Factors, below).
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We developed the Population Index Model to spatially identify Core
Areas on the landscape that contain population centers of sage-grouse
(Figure 3). We did this because sage-grouse populations are highly
clumped, and relatively small areas can contain a disproportionate
amount of sage-grouse. To create our Population Index Model, we used
lek data to identify hotspots using standard statistical methods. We
used the Occupied Breeding Habitat Distribution Model to develop our
final Population Index Model. The model results are grids that
represent an index to the relative amount of breeding birds for each
120 m\2\ (393 ft\2\) within management zones. Similar to our Occupied
Breeding Habitat Distribution Model, our Population Index Model can be
linked with other spatially explicit risk models or conservation
actions to understand spatial overlap with sage-grouse populations. We
would expect high levels of future impacts to occur if current sage-
grouse population centers overlap areas with high probabilities of
future land use activities. Conversely, we would expect future impacts
to be low, if current sage-grouse population centers do not overlap
areas with high probabilities of future land use activities. The
Population Index Model was used to assess potential impacts from
Nonrenewable Energy and Agricultural Conversion (see Summary of
Information Pertaining to the Five Factors, below).
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Unfortunately we did not receive population or habitat data from
the two Canadian provinces within the species range and, therefore,
could not include these areas in our modeling efforts. The abundance of
sage-grouse is low in both Canadian provinces (Alberta Environment and
Sustainable Resource Development 2013, p. 8). Due to the low number of
birds remaining in Canada, coupled with the limited amount of existing
habitat in Canada, we do not anticipate that the exclusion of these
areas affects the outcome of this range-wide model.
Population Abundance and Trends Summary
Estimating sage-grouse abundance is difficult due to changes in
seasonal distributions, the cryptic coloration, and behavior of females
and their offspring, and the lack of a systematic survey protocol and
sampling scheme across the range of the species (WAFWA 2015, pp. 44-
46). Lek counts do not provide a precise estimate of population size;
however, these counts provide a useful index to the population size
that detects population changes over time (Johnson and Rowland 2007, p.
20). Although an imperfect measure, peak counts of males on leks are
the best available information about the number of sage-grouse in an
area (Johnson and Rowland 2007, p. 20) and are the accepted method to
assess sage-grouse abundance trends (WAFWA 2015, p. 2; Garton et al.
2015, entire).
Information reviewed for the 2010 finding indicated a long-term
decline of sage-grouse abundance since lek count surveys were initiated
in the 1960s. New information since 2010 confirms that long-term
declines have occurred from 1965 to 2014 across all MZs where
sufficient data exist to make inferences (Garton et al. 2011, 2015,
entire; WAFWA 2008, 2015, entire). While models agree about downward
abundance trends since the 1960s, the actual rates of decline differ
among MZs and studies. Our confidence in these rates of decline is
limited due to a variety of statistical sampling issues associated with
counting peak males on leks (see Johnson and Rowland 2007, pp. 17-20),
as well as the cyclic nature of sage-grouse populations. Regardless,
the best information available indicates that the rangewide population
of sage-grouse is declining.
Changes Since the 2010 Finding
The landscape of the western United States has undergone
significant changes since the onset of European settlement, including
the dramatic alteration of key sage-grouse habitats. Despite human
population growth and accompanying development, sagebrush habitats
persist on millions of acres across 11 States in the west. Sage-grouse
numbers have declined since pre-European settlement, but sage-grouse
distribution (Figure 3) has remained relatively unchanged since our
first status review in 2005 (70 FR 2244, January 12, 2005). In other
words, despite historical and current population declines, sage-grouse
are still distributed throughout their range.
The 2005 status review found that, despite a growing number of
serious threats, large numbers of birds continued to be distributed
across the range (70 FR 2244, January 12, 2005, p. 2279). At that time,
92 percent of the known active leks occurred in 8 of 41 populations; 5
of those populations were so large and expansive that they were
subdivided into 24 subpopulations to facilitate analysis (Connelly et
al. 2004, p. 13-4). We subsequently
[[Page 59871]]
determined that the species did not warrant listing, but emphasized the
need for ongoing sage-grouse and sagebrush conservation efforts to
moderate the rate and extent of habitat loss for the species in the
future (70 FR 2244, January 12, 2005, p. 2279). Following the 2005
finding, the Western Association of Fish and Wildlife Agencies (WAFWA)
released a rangewide conservation strategy for sage-grouse, which
established an overarching goal of maintaining and enhancing
populations and distribution of sage-grouse ``by protecting and
improving sagebrush habitats and ecosystems that sustain these
populations'' (Stiver et al. 2006, p. i). The WAFWA conservation
strategy included actions such as increasing capabilities in habitat
restoration, habitat conservation, research, and improving regulatory
mechanisms. The WAFWA conservation strategy also identified
quantifiable conservation goals (Stiver et al. 2006, pp. 1-8).
In 2010, we conducted a second status review for sage-grouse (75 FR
13910, March 23, 2010, entire). Although the species remained widely
distributed across the landscape, we found it warranted for listing
under the Act due to continued loss and fragmentation of habitat
exacerbated by a lack of adequate regulatory mechanisms to address
habitat loss. The primary drivers of habitat fragmentation identified
were renewable and nonrenewable energy development in prime sage-grouse
habitats, continued expansion of supporting infrastructure, the spread
of invasive annual grasses and associated changes in wildfire regimes,
and the lack of adequate regulatory structures to address these
impacts. In addition, trend data showed a continuation of population
declines identified in 2005. Without regulatory mechanisms in place to
control continued habitat loss and fragmentation, we determined the
sage-grouse was at risk of extinction in the foreseeable future and,
therefore, warranted protection under the Act. However, due to the
workload of managing higher priority species, we designated the sage-
grouse a ``candidate'' species, assigning it a listing priority number
of 8 to indicate the moderate magnitude of imminent threats. Species
with lower listing priority numbers are addressed before those with
higher priority numbers.
We also concluded that the extinction risk was not imminent. As
noted in the 2010 finding when determining its listing priority status:
``We consider the threats that the sage-grouse faces to be moderate in
magnitude because the threats do not occur everywhere across the range
. . . and where they are occurring they are not of uniform intensity or
of such magnitude that the species requires listing immediately to
ensure its continued existence. While sage-grouse habitat has been lost
or altered in many portions of the species' range, substantial habitat
still remains to support the species in many areas of its range. We
believe the ability of these population centers to maintain high
densities in the presence of several threat factors is an indication
that the magnitude of threats is moderate overall'' (75 FR 13910, March
23, 2010, pp. 14008-14009). The 2010 finding has galvanized a rangewide
conservation effort that includes new management plans developed by
Federal and State agencies to establish regulatory mechanisms adequate
to address identified threats.
New Scientific Information
Since 2010, the already voluminous scientific literature on sage-
grouse has been augmented by extensive, newly published research on
sage-grouse biology, sagebrush habitat, and impacts to both. We
collected this information for our status review through a direct
request to our conservation partners and through general literature
reviews. We have used this data to inform our understanding of the
current status of sage-grouse and how its status has changed since
2010. All relevant published resources, as well as unpublished data,
were considered in our status review. Not all of this new information
is cited in this document, as it either did not provide additional
information on impacts to the species or response to conservation, or
was repetitive of other studies already cited in our assessment. In
addition, we considered all new scientific information presented to us
in response to our data call for this status review, information
received during our previous annual Candidate Notice of Review data
calls, data entered into the Conservation Efforts Database (CED), and
recently published articles. Several articles providing new information
since 2010 are summarized below.
New population trend analyses incorporating up to 7 years of
additional data have been completed (Garton et al. 2015, WAFWA 2015)
and provide greater insight into population cycling and species status.
We recognize the difficulty in detecting short-term trends for a
species with decadal cycles; longer term trends show a small, but
detectable decline since the 1960s. For more information, see
Population Abundance and Trends section, above.
An evolving appreciation of mechanisms that affect sage-grouse and
sagebrush habitats assisted in the development of new applied science
for conservation efforts, including wildfire and invasive management
(Chambers et al. 2014a, entire), conifer removal (Miller et al. 2014,
entire), and energy development (Patricelli et al. 2013, entire; Drouin
2014). These important, applied conservation tools have been essential
in assessing species and habitat persistence and aiding the
minimization of impacts to the species and its habitat. Specifically,
the resilience and resistance matrix developed by WAFWA and published
in 2014 provided a new applied science framework to better understand
the likelihood of habitats to ability to resist Bromus tectorum
(cheatgrass) invasion and recover following wildfire (Chambers et al.
2014a, entire). Conservation actions designed to minimize risk have
also been furthered by application of new scientific information and
tools. For example, the Natural Resources Conservation Service (NRCS)
Sage Grouse Initiative (SGI) has incorporated new scientific research
on impacts to guide the development of grazing plans, conifer removal,
fence marking, and other conservation actions on private lands to
benefit sage-grouse and its habitat (NRCS 2015a, entire).
The U.S. Geological Survey (USGS) compiled the findings of
published scientific literature evaluating the influence of human
activities and infrastructure on sage-grouse (Manier et al. 2013,
entire). An additional report (Manier et al. 2014, entire) provided
information on biologically relevant buffer distances around sage-
grouse habitats to help reduce habitat avoidance caused by human
disturbance and infrastructure. The revised and amended BLM and USFS
Federal Plans adopted and incorporated the recommendations in the
Manier et al. report (2014), as discussed below in the Sagebrush
Landscape Conservation Planning section. These new analyses and tools,
plus all the other information we considered, are addressed throughout
this document and our administrative record.
Many partners across the range of the sage-grouse are working to
conserve sage-grouse habitat. In 2014, we developed the CED, a
spatially explicit, online platform for efficiently collecting data
from conservation partners about their sage-grouse conservation
efforts. More than 100 partners across the range of the species entered
information about 6,200 projects into the CED. Of these projects, 44
percent (2,700 projects) cover more than 1.2 million ha (3
[[Page 59872]]
million ac) and were deemed complete and effective at addressing the
primary threats identified in the Conservation Objectives Team (COT)
Report (See Sagebrush Landscape Conservation Planning section below for
a description of this report) (USFWS 2013, entire). Examples of these
projects include conservation easements, conifer removal, and
treatments to remove or reduce invasive weeds and annual grasses. The
other 3,500 projects (56 percent), as reported in the CED, were of more
limited scope and scale; and some did not contain enough information
for us to reliably assess their effectiveness or implementation even on
a local scale. Thus, while these efforts will continue to be helpful in
conserving sage-grouse and its habitat now and into the future, we took
a conservative approach and did not rely on these efforts in this
finding.
Sagebrush Landscape Conservation Planning
The expansive range of sagebrush habitat has compelled managers to
take a landscape approach to conservation efforts, with sage-grouse
assuming the focus of these efforts for the past decade. In 2006, WAFWA
developed a comprehensive strategy for conserving habitat for the
benefit of this species. The strategy outlined the need to develop
partnerships among local, State, Provincial, Tribal, and Federal
agencies, non-governmental organizations, and private landowners to
design and implement cooperative actions to support robust populations
of sage-grouse and the landscapes and habitats upon which they depend
(Stiver et al. 2006, p. i). This was the first of several documents to
outline the conservation needs of the species and its habitat.
In 2011, the BLM assembled a National Technical Team (NTT) of sage-
grouse and sagebrush habitat experts to identify the best available
science[hyphen]based information to guide the development of Federal
land management plans for the greater sage[hyphen]grouse (BLM 2011a,
entire). The NTT Report proposed conservation measures based on habitat
requirements and other life-history aspects of the species. The NTT
Report also described the scientific basis for some of the conservation
measures proposed within each of the Federal land planning program
areas. These conservation measures included actions such as development
of sage-grouse specific habitat objectives relative to domestic
livestock management, criteria to inform leasing decisions in sage-
grouse habitats, and monitoring of sage-grouse and their habitats (BLM
2011a, entire).
Conservation Objectives Team Report
In 2013, we, together with the States, chartered a team of sage-
grouse and habitat experts to identify the conservation goals for the
species. The Conservation Objectives Team (COT) Report was a ground-
breaking, collaborative approach to develop rangewide conservation
objectives for the sage-grouse, both to inform this finding and to
inform the collective conservation efforts of the many partners working
to conserve the species (USFWS 2013, entire). The highest level
objective identified in the COT Report is minimization of habitat
threats to the species so as to meet the objective of the 2006 WAFWA
Greater Sage-grouse Comprehensive Conservation Strategy: Reversing
negative population trends and achieving a neutral or positive
population trend.
The conservation principles of redundancy, representation, and
resilience guided the development of the conservation goals, priority
areas for conservation, conservation objectives, and measures included
in the COT Report (USFWS 2013, p. 12). The COT Report found that
satisfying these conservation principles for sage-grouse meant having
multiple, geographically distributed populations across the species'
range (USFWS 2013, p. 12). The COT Report further stated, ``By
conserving well distributed sage-grouse populations across geographic
and ecological gradients, species adaptive traits can be preserved, and
populations can be maintained at levels that make sage-grouse more
resilient in the face of catastrophes or environmental change'' (USFWS
2013, pp. 12-13).
In particular, the COT Report, using State information, identified
the habitats most critical for the conservation of the species, which
were described as Priority Areas for Conservation (PAC, Figure 4)
(USFWS 2013, entire). Priority Areas for Conservation are ``. . . the
most important areas needed for maintaining sage-grouse representation,
redundancy and resilience across the landscape'' (USFWS 2013, p. 13).
Identifying PACs ensured that conservation partners direct their
efforts to the highest priority habitats. Since the completion of the
COT Report, improved habitat mapping and further discussions with the
States has resulted in changes to the PAC map in Nevada, Montana, and
Utah. For the purposes of this document, we refer to those areas that
were added as Important Priority Areas.
[[Page 59873]]
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Federal and State Planning Efforts
As discussed above, in 2010 we concluded that sage-grouse
populations were well-distributed across the occupied range, but
without the habitat protections provided by adequate regulatory
mechanisms, populations were likely to become smaller, fewer, and
separated by fragmentation, placing the species at risk of extinction
in the future (75 FR 13910, March 23, 2010, p. 13986). Because the 2010
finding indicated that adequate regulatory protections could prevent
the need to list sage-grouse, numerous Federal and State agencies
undertook planning efforts to improve regulatory mechanisms and
conserve sage-grouse into the future. A centerpiece of all of the
conservation efforts is the protection of the most important habitats
for sage-grouse that are necessary to maintain redundant,
representative, and resilient populations (i.e., PACs). These important
habitats for conservation were identified in conservation planning
efforts (Figure 4) as the places where large, undisturbed expanses of
sagebrush habitat were supporting leks and the highest density of
breeding birds (USFWS 2013, p. 15). These important habitats for
conservation also correspond with the population centers referred to in
the 2010 finding. The maintenance of these areas and the birds that use
them would provide a network of resilient and connected populations
across the landscape that would provide for long-term species
viability.
Using the recommendations provided in the COT Report (USFWS 2013,
entire) and the NTT Report (BLM 2011a, entire), the Federal agencies
developed conservation strategies to protect the important habitats for
conservation. These strategies focus not only on the most important
habitats for conservation, but also on conservation objectives to
address the greatest threats to the species, as identified in the COT
Report (USFWS 2013, pp. 31-52).
While 10 of the 11 States in the range of the sage-grouse updated
their State plans to conserve the species by incorporating new
information, which is a testimony to their concern and commitment to
protect the grouse and its habitats, not all of these plans have been
implemented or are regulatory in scope. We will specifically highlight
the regulatory conservation actions mandated by the State plans in
Wyoming, Montana, and Oregon because they provide the greatest degree
of regulatory certainty in addressing potential threats on State and
private lands not under the jurisdiction of Federal plans. We
appreciate the work that each State has completed, but not all planning
efforts met a level of certainty for implementation and effectiveness.
We acknowledge that sage-grouse conservation plans have been developed
for Colorado, Idaho, Nevada, North Dakota, South Dakota, and Utah that
could provide long-term benefits to sage-grouse. For example, the Idaho
Plan includes the following measures: Technical and monetary assistance
for fire rehabilitation and restoration efforts in areas where wildfire
has impacted both State and Federal lands; assistance with
implementation of Federal landscape fuels management projects on lands
adjacent to Federal lands (such as the extension of fuel break projects
onto State lands); development, coordination, and training for
Rangeland Fire Protection Associations (RFPAs); and adoption of a
general strategy to reduce Idaho Plan ownership of key habitat within
Core Habitat Areas through land exchanges with BLM. We encourage all of
the States to fully implement their
[[Page 59874]]
sage-grouse plans as they will further contribute to the long-term
conservation of the sage-grouse.
In this section, we provide a summary of the various conservation
programs and efforts put in place at the Federal, State, and local
levels that are most important to our analysis of regulatory mechanisms
in addressing potential threats to sage-grouse: The Federal plans,
State plans in Wyoming, Montana, and Oregon; and the voluntary
conservation efforts on private lands provided by SGI and Candidate
Conservation Agreements with Assurances (CCAAs). The Wyoming Plan is
analyzed based on its 7-year track record of implementation, and SGI is
also analyzed based on its accomplishments to date.
The sections below provide an analysis of the implementation and
effectiveness of the Federal plans, Montana program, Oregon efforts,
and Secretarial Order 3336 pursuant to our Policy for Evaluation of
Conservation Efforts (PECE) (68 FR 15100, March 28, 2003). The purpose
of PECE is to ensure consistent and adequate evaluation of recently
formalized conservation efforts when making listing decisions. The
policy provides guidance on how to evaluate conservation efforts that
have not yet been implemented or have not yet demonstrated
effectiveness. The evaluation focuses on the certainty that the
conservation efforts will be implemented and the effectiveness of the
conservation efforts to contribute to make listing a species
unnecessary. In this finding, we evaluated the certainty that the
Federal Plans, and the Montana and Oregon Plans will be implemented
into the future and the certainty that they will be effective in
addressing threats, based on the best available science and
professional recommendations provided in the COT and other scientific
literature and reports. We also evaluated the Secretarial Order using
PECE, which is discussed below in the Wildfire and Invasive Plants
section.
The Federal plans and three State Plans provide protective,
regulatory mechanisms for the majority of the most important habitat
for sage-grouse. The Federal Plans divide habitat into two habitat
management area categories--Priority Habitat Management Areas (PHMAs)
and General Habitat Management Areas (GHMAs). Priority Habitat
Management Areas largely correspond to PACs (USFWS 2013, p. 13) and
State-identified Core Areas (BLM and USFS 2015, entire). The PHMAs are
the highest priority for conservation because they contain large,
undisturbed expanses of breeding habitat and the highest densities of
sage-grouse. The most restrictive conservation measures, such as
excluding certain activities and requiring avoidance and minimization
measures, apply to 64 percent of the species' breeding habitat
designated as PHMAs (USFWS 2015a). The Federal and three State plans
protect an additional 26 percent of breeding habitat in GHMAs (USFWS
2015a) that contain fewer leks and sage-grouse than PHMAs, but provide
habitat and connectivity between populations. As discussed above in
Sage-Grouse Connectivity and Landscape Genetics, connectivity between
core population areas has been identified as an important strategy to
ensure long-term sage-grouse persistence (Crist et al. 2015, p. 17).
The required conservation measures in GHMAs are less restrictive than
in PHMAs and provide greater land-use flexibility, but still deliver
measures that minimize potential impacts. To assess the effectiveness
of the Federal Plan, we completed a geospatial analysis of how much the
areas designated as PHMAs and GHMAs overlapped with areas modeled as
breeding habitat. Collectively, the regulatory mechanisms provided by
the Federal plans and three State plans reduce potential impacts to
approximately 90 percent of the sage-grouse breeding habitat rangewide
(USFWS 2015a). Later in this document, we will discuss how all of these
conservation efforts are expected to address adverse effects from
potential threats, and lastly, we will assess the adequacy of these
efforts as regulatory mechanisms (See Regulatory Mechanisms, below).
Federal Plans
The BLM and USFS sage-grouse planning effort was unprecedented in
scope and scale, and represents a significant shift from management
focused within administrative boundaries to managing at a landscape
scale. This effort also represented a concerted effort by the agencies
to balance their multiple-use mandates with conservation objectives.
The BLM and USFS completed this effort by issuing amendments or
revisions to 98 land management plans governing over half of the
occupied range. These land management plans are the principal
regulatory documents for the activities allowed on BLM and USFS lands,
are grounded in the agencies' organic statutes (e.g., Federal Land
Management and Policy Act, National Forest Management Act), and are at
the core of the agencies' National Sage-Grouse Conservation Strategy
outlined in their plan revisions and amendments. We were a key partner
working closely with BLM and USFS throughout the process to develop and
complete the Federal Plans. In this section, we will discuss the
Federal plans across the 11-State range of sage-grouse, except for the
plans in Wyoming. For Wyoming, because the Federal and State plans work
together to conserve sage-grouse on all lands, they will be discussed
together in a separate section below.
The BLM and USFS have broad authorities to manage the lands and
resources within their jurisdiction. The Federal Land Policy and
Management Act of 1976 (FLPMA) (43 U.S.C. 1701 et seq.) is the primary
Federal law governing most land uses on BLM-administered lands and
directs development and implementation of Resource Management Plans,
which direct management at a local level. Resource Management Plans are
the basis for all actions and authorizations involving BLM-administered
lands and resources. Management of activities on National Forest System
lands is guided principally by the National Forest Management Act
(NFMA) (16 U.S.C. 1600-1614, August 17, 1974, as amended). The NFMA
specifies that the USFS must have a Land and Resource Management Plan
(16 U.S.C. 1600) to guide and set standards for all natural resource
management activities on each National Forest or National Grassland.
For the purposes of this document, Resource Management Plans and Land
and Resource Management Plans are collectively referred to as Federal
Plans.
Under FLPMA, the BLM is required to establish Resource Management
Plans for the management and use of public lands in accordance with the
principles of multiple-use and sustained-yield. Similarly, pursuant to
the NFMA, the USFS is required to establish plans for the management
and use of National Forest System lands in accordance with the
principles of multiple-use and sustained-yield. The Federal Plans are
the basis for on-the-ground actions that the BLM and USFS undertake and
authorize. Decisions in Federal Plans guide future land management
actions and subsequent site-specific implementation decisions. Land use
plan decisions establish goals and objectives for resource management
(desired outcomes) and the measures needed to achieve these goals and
objectives (land use allocations for the BLM; Standards and Guidelines
for the USFS).
These Federal Plans are regulatory mechanisms. The Federal Plans
establish goals and objectives and measures to address the potential
[[Page 59875]]
threats to sage-grouse and sage-grouse habitat. The Federal Plans
establish mandatory constraints and were established after notice and
comment and review under the National Environmental Policy Act (NEPA).
Therefore, changes to the Federal Plans would require additional notice
and comment and further analysis under NEPA. All future management
authorizations and actions undertaken within the planning area must
conform to the Federal Plans, thereby providing reasonable certainty
that the plans will be implemented. The BLM has already made
substantial financial commitments to ensure success of actions
identified in their Plans, including allocating more than 10 million
dollars to support fire management (DOI 2015a, entire). In 2015, BLM
directed resources to fund monitoring crews, and funded activities,
like data management, to ensure successful implementation of the
monitoring commitments; and BLM's fiscal year 2016 budget request
included an additional 8 million dollars to directly support monitoring
the implementation and effectiveness of the land use plans (Lueders,
BLM, 2015, pers. comm.). The Department of the Interior identified
additional high-priority actions that the BLM will complete in the next
5 years including prioritizing control of invasive plants and removal
of free-roaming equids from high-priority sage-grouse habitat (DOI
2015a, entire). Based upon past Federal land planning efforts, we
expect these plans to be implemented for the next 20-30 years. The BLM
and USFS have committed to full funding and implementation of these
plans, and have included monitoring and adaptive management to ensure
their long-term effectiveness.
The Federal Plans represent a paradigm shift in western Federal
lands management in their focus on maintaining large expanses of the
sagebrush ecosystem for the benefit of sage-grouse and many other
species. Federal Plans are structured around a layered management
approach that aims to preclude or minimize additional surface
disturbance in priority conservation habitats, while providing some
management flexibility in sage-grouse habitat areas that are less
critical for conservation. In addition to these land use allocations
and associated conservation actions, the Federal Plans include
direction for wildfire and invasive species management, minimization
measures, mitigation strategies, monitoring, and adaptive management
that provide further conservation benefits for sage-grouse, as
discussed below. There are differences across 98 plans as necessary to
address differing ecological conditions; however, the general
regulatory framework is consistent amongst all the plans. Because of
the commitments from the Federal Government to implement these plans
and because of the Plans' consistency with the COT Report
recommendation for measures to reduce threats, these Federal Plans
provide substantial conservation benefits to sage-grouse, now and in
the future
Land Management--The Federal Plans adopt a tiered land use
allocation regime that provides the greatest level of protection for
the most important habitats. We, together with State agencies, helped
the BLM and USFS designate priority habitat areas using the best
available scientific data to identify the location of the highest
quality habitat with the greatest number of breeding sage-grouse. These
areas largely coincide with the PACs identified in the COT Report
(USFWS 2013, p. 14) and were designated by BLM and USFS in the Federal
Plans as Priority Habitat Management Areas (PHMAs) (BLM and USFS 2015,
entire). Based on our recommendation to further protect sage-grouse
population centers that have been identified in the scientific
literature as critically important for the species and areas identified
through our analysis as important for conservation, BLM and USFS
designated areas as Sagebrush Focal Areas (SFA) and added protections
that would further limit new, human-caused surface disturbance in SFAs.
Lastly, BLM and USFS designated General Habitat Management Areas
(GHMAs) that represent areas with fewer leks and lower densities of
breeding birds where disturbance is limited, while providing greater
flexibility for land use activities.
Federal Plans mapped approximately 27 million ha (67 million ac) of
sage-grouse habitat, of which 14 million ha (35 million ac) were
designated as PHMAs, 4.5 million ha (11 million ac) were designated as
SFAs (and overlap generally with PHMAs), and 13 million ha (32 million
ac) were designated as GHMAs (no habitat was mapped in Washington, as
minimal habitat occurs on BLM and USFS land in that State). The Federal
Plans authorize and establish allowable resource uses for each of these
Management Area designations. The Federal Plans also establish
stipulations for certain authorizations to protect resources. Land use
allocations of specific activities are generally categorized as:
Exclusion/Closed: Areas that are not available for
development or use of particular resources; or
Avoidance: Areas to be avoided but may be available for
development or use of particular resources with special
stipulations; or
Open: Areas open to development or use of particular
resources, although use may be restricted by stipulations.
Using this targeted and tiered approach to habitat conservation,
the Federal Plans have a number of components for conserving sage-
grouse and their habitats. The primary components of the Federal Plans
are a combination of: (1) Land use allocations; (2) human-caused
disturbance caps and density limitations; (3) lek buffers; (4)
monitoring; (5) adaptive management; (6) mitigation; and (7) a
landscape-scale strategy for addressing the threat of fire and invasive
grasses.
The BLM, USFS, and other partners recognize the variability in
habitat value across sage-grouse habitat, both in terms of habitat
characteristics and habitat quality. Priority sage[hyphen]grouse
habitats are areas that have the highest conservation value to
maintaining or increasing sage[hyphen]grouse populations. These areas
include breeding, late brood[hyphen]rearing, winter concentration
areas, and where known, migration or connectivity corridors (BLM 2011a,
p. 7). The BLM developed a rangewide Breeding Bird Density Map to
highlight locations where the highest densities of breeding males were
found on leks (Doherty et al. 2010a). Using this information and
additional State agency expertise, BLM highlighted seasonal habitats
needed for the sage-grouse (BLM 2011a, p. 7). In those instances where
the BLM State offices did not complete this delineation, BLM relied
upon the Breeding Bird Density maps (Doherty et al. 2010a, entire; BLM
2011b, entire). An Instructional Memorandum (IM; IM 2012-043)
established two habitat categories. Preliminary Priority Habitat forms
the basis for PHMA in the final plans and represents the habitat
designated to maintain distribution and sustainable sage-grouse
populations (BLM 2011b, entire). The second category was Preliminary
General Habitat, the precursor to GHMA, which represents areas with
fewer leks and lower densities of breeding birds where disturbance is
limited, while providing greater flexibility for land use activities.
Many of these areas were already impacted by human activities or
wildfire. General sage-grouse habitat is described as occupied
(seasonal or year[hyphen]round) habitat outside of priority habitat
(BLM 2011a, p. 9).
[[Page 59876]]
The Federal Plans focus on land use management within these two
management areas (Figure 5). The discussion below analyzes PHMA and
GHMA separately to distinguish the different management considerations
in the most important habitats (PHMA) and the measures provided in
other occupied habitats (GHMA).
[GRAPHIC] [TIFF OMITTED] TP02OC15.004
Priority Habitat Management Areas--The BLM and USFS evaluated the
occupied habitat within their jurisdiction and designated the areas
with the best habitat and the majority of the leks as PHMAs.
Approximately 14 million ha (35 million ac) were designated as PHMA
(Figure 5), corresponding with approximately 64 percent of breeding
habitat. The PHMA consists of the most important habitat on Federal
lands occupied by the species. Because this is the most important
habitat on Federal lands within the range of the species, the land use
allocations and other measures are more restrictive in these habitats.
Below we analyze the land use allocations and other measures in the
revised and amended Federal Plans to conserve and maintain these
important habitat areas on Federal lands. The Federal Plans in Wyoming
are discussed separately below with the Wyoming State strategy as they
collectively address all lands in Wyoming in a coordinated effort.
Fluid Minerals (Including Oil, Gas, and Geothermal): Under the
revised or amended Federal Plans, PHMAs are closed to new leasing or
subject to leasing with No Surface Occupancy (NSO). No surface
occupancy areas are open to leasing, but human-caused surface-
disturbing activities, such as development of well pads, cannot be
conducted on the surface of the land. Access to oil and gas deposits
would require directional drilling from outside the boundaries of the
NSO areas. There will be no waivers, exceptions, or modifications,
unless the following condition is met: ``A lease exception may be
considered where a portion of the proposed lease is determined to be in
non-habitat, the area is not used by sage-grouse, nor would it have
direct, indirect or cumulative effects to sage-grouse or its habitat.
The determination would be made by a team of agency sage-grouse
experts, including an expert from the state wildlife agency, the
Service, and BLM/USFS. All exceptions must be approved by the State
Director.'' Further, priority will be given to leasing and development
of fluid mineral resources, including geothermal, outside of sage-
grouse habitat. The implementation of these priorities will be subject
to valid existing rights and any applicable law or regulation,
including, but not limited to, 30 U.S.C. 226(p) and 43 CFR 3162.3-
1(h).''
On existing leases, the BLM will work with the lessees, operators,
or other project proponents to avoid, reduce and mitigate adverse
impacts to the extent compatible with lessees' rights to drill and
produce fluid mineral resources. The BLM will work with the lessee,
operator, or project proponent in developing for the lease an
application for a permit to drill to avoid and minimize impacts to
sage-grouse or its habitat and will ensure that the best information
about the sage-grouse and its habitat informs and helps to guide
development of such Federal leases. See the Nonrenewable Energy section
below for a further discussion of valid existing rights.
Fluid minerals land use allocation decisions are more complex than
the typical open, avoidance, and closed/exclusion decisions. Allocative
decisions within the Federal Plans for fluid minerals can be one of the
following:
Open: These areas are open to leasing with minor to no
constraints, subject to existing laws and regulations, and formal
orders, as well as any standard terms and conditions.
[[Page 59877]]
Open with moderate constraints: These are areas where
it has been determined that moderately restrictive lease
stipulations may be required to mitigate impacts. These stipulations
include timing limitations and controlled surface uses.
Open with major constraints: These are areas where it
has been determined that highly restrictive lease stipulations are
required to mitigate impacts.
No Surface Occupancy (NSO): These areas are open to
leasing, but surface-disturbing activities are precluded. Access to
oil and gas deposits would require directional drilling from outside
the boundaries of the NSO areas. The NSO areas are also avoidance
areas for Rights-of-Way (ROWs); no ROWs would be granted in NSO
areas unless there are no feasible alternatives.
Closed: These are areas where it has been determined
that other land uses or resource values cannot be adequately
protected with even the most restrictive lease stipulations and
appropriate protection can be ensured only by closing the lands to
leasing.
In 2010, there were few habitat restrictions specific for sage-
grouse for fluid mineral leasing on Federal lands within the range of
the species. The new land use allocations in the Federal Plans
designating PHMAs as either closed or open with NSO restrictions
represent an unprecedented change in the management of areas important
for sage-grouse (PHMAs) with fluid mineral potential. These land use
allocations are consistent with the COT Report (USFWS 2013, p. 43)
recommendations to reduce and eliminate disturbance in PACs. Closing
areas to development and requiring NSO with only very limited
exceptions, substantially reduces the potential for future disturbance
in PHMAs. Considered together, these measures avoid or minimize impacts
to fluid mineral development in priority habitat for conservation; this
signifies a substantial improvement in the effectiveness of regulatory
mechanisms since the 2010 finding.
Non-Energy Leasable Minerals: Under the Federal Plans, PHMAs are
closed to new permits for non-energy leasable minerals (e.g.,
phosphate, sodium, potassium), but expansion of existing operations
could be considered, subject to specific conditions outlined in the
plans. This provision reduces the potential impacts from non-energy
leasable mineral development. The BLM leases certain solid minerals on
public and other Federal lands. When mineral rights owned by the
Federal Government underlie privately owned surface lands, the BLM can
also lease these minerals. The restrictions in PHMAs reduce the
likelihood that future development to non-energy leasable minerals will
occur in these areas. Closing areas is an effective measure to reduce
disturbance.
Mineral Materials: Since July 23, 1955, common varieties of sand,
gravel, stone, pumice, pumicite, and cinders were removed from the
General Mining Law and placed under the Materials Act of 1947, as
amended. Use of salable minerals requires either a sales contract or a
free-use permit (free permit for personal, noncommercial use). Under
the Federal Plans, PHMAs are closed to new mineral material sale with
limited exceptions for free use permits (described below) and the
expansion of existing active pits, subject to compensatory mitigation
and disturbance caps. Required design features (RDF) will be applied to
all free use permits to minimize any potential impacts. As with other
mineral development, disturbance in important habitat areas will be
minimized through disturbance caps, lek buffers, and other measures.
The closure of PHMAs to the sale of mineral materials effectively
eliminates new impacts from this activity in PHMAs providing effective
conservation in the most important habitats for the species.
Solar/Wind: The Federal Plans generally exclude new utility scale
and commercial solar and wind developments from PHMAs. Limited
exceptions must be based on an explicit rationale that biological
impacts to sage-grouse will be avoided. Rights-of-way are required for
wind testing, associated development structures, or solar energy
development projects implemented on public lands. In Nevada,
California, Utah, and Colorado, the Solar Energy Development
Programmatic EIS (BLM 2012, entire) excludes development of utility-
scale solar facilities outside the Solar Energy Zones and variance
areas (variance areas are potentially available for utility-scale solar
energy development, subject to additional environmental review),
protecting a majority of the sage-grouse habitat in these States.
Exclusion is an effective tool to reduce disturbance and minimize
impacts in the most important habitats for conservation on federally
managed lands because the activity will not be allowed in important
habitats.
Rights-of-way: Under the Federal Plans, PHMAs are either avoidance
or exclusion areas for both major and minor rights of way with limited
exceptions, which must be based on an explicit rationale that
biological impacts to sage-grouse are being avoided. Existing
designated corridors for major transmission lines and pipelines will
remain open. Federal Plans designate existing and potential ROW
corridors to minimize adverse environmental impacts and the
proliferation of separate ROWs (43 CFR part 2806). Any new disturbance
within these corridors would count towards the disturbance cap. All
new, modified, or deleted corridors will require a land use plan
amendment (including NEPA analysis and notice and comment), thereby
limiting new or expanded corridors in priority habitats for
conservation in the future.
Livestock Grazing: The Federal Plans have not substantively changed
livestock land use allocations; however, the BLM and USFS have
committed to implementation of vegetative standards and habitat
objectives specifically for sage-grouse based on local ecological
conditions and prioritization of monitoring in PHMAs to determine if
they are meeting sage-grouse habitat objectives consistent with site-
specific guidelines or ecological site descriptions. The Federal Plans
call for grazing to benefit or be neutral to sage-grouse, including in
times of drought. Specifically, the BLM and USFS have committed to
implementing the following measures in the Federal Plans:
The habitat assessment framework (Stiver et al. 2010,
entire) will be used to monitor progress at achieving rangeland
health objectives at multiple spatial scales.
The BLM and USFS will prioritize the following first in
SFAs followed by PHMAs outside of the SFAs: (1) The review of
grazing permits/leases, in particular to determine if modification
is necessary prior to renewal, and (2) the processing of grazing
permits/leases. In setting workload priorities, precedence will be
given to existing permits/leases in these areas not meeting Land
Health Standards, with focus on those containing riparian areas,
including wet meadows. The BLM may use other criteria for
prioritization to respond to urgent natural resource concerns (e.g.,
fire) and legal obligations.
The NEPA analysis for renewals and modifications of
livestock grazing permits/leases that include lands within PHMAs
will include specific management thresholds based on sage-grouse
Habitat Objectives Table and Land Health Standards (43 CFR 4180.2)
and defined responses that will allow the authorizing officer to
make adjustments to livestock grazing without conducting additional
NEPA analysis.
Allotments within SFAs, followed by those within PHMAs,
and focusing on those containing riparian areas, including wet
meadows, will be prioritized for field checks to help ensure
compliance with the terms and conditions of the grazing permits.
Field checks could include monitoring for actual use, utilization,
and use supervision.
At the time a permittee or lessee voluntarily
relinquishes a permit or lease, the BLM and USFS will consider
whether the public lands where that permitted use was authorized
should remain available for livestock grazing or be used for other
resource management objectives.
Structural range improvements will be managed to
benefit or not adversely affect sage-grouse by restricting locations
of ranch
[[Page 59878]]
facilities (e.g., fences, windmills, and corrals) around leks,
marking or removing fences, and controlling invasive plants.
Prioritizing the onsite monitoring to the most important areas for
sage-grouse consistent with the rangewide monitoring plan, the
certainty of implementation is improved because monitoring and
management changes will occur in the most important areas for sage-
grouse first. The vegetative objectives in the Federal Plans were
developed using the best available scientific information, taking into
consideration ecological differences across the range of the species.
The Federal Plans specifically cite to the literature relied upon to
develop these objectives. The Federal Plans commit to implementation of
any habitat enhancement projects and other activities to meet these
objectives. The monitoring framework is designed to add consistency to
this effort and will, with adaptive management, provide additional
certainty that measures will be implemented to meet habitat objectives.
These changes represent a significant change from having virtually no
or only general land health standards for sage-grouse to a system that
establishes specific standards for sage-grouse, prioritizes the most
important habitats, and targets monitoring to ensure compliance. This
framework represents an effective suite of measures that reduces the
impacts from improper grazing.
Sagebrush Focal Areas--Sagebrush Focal Areas (SFAs) are the areas
that the Federal Plans manage as the highest priority lands in PHMAs
for sage-grouse conservation (Figure 5). The BLM requested input from
us about additional conservation opportunities, and we provided a memo
that identified ``strongholds'' for sage-grouse (USFWS 2014a, entire).
These ``strongholds'' represented areas identified in the scientific
literature as essential for the persistence of the species. Some of the
important characteristics of these areas include large, contiguous
blocks of Federal lands; high population connectivity; and high
densities of breeding birds (USFWS 2014a, entire). Our recommendations
directly informed the BLM and USFS development of SFAs, important
conservation units within which land managers will apply the most
conservative strategies to protect sage-grouse and habitat. Sagebrush
Focal Areas encompass 4.5 million ha (11 million ac) of federally
administered lands in PHMAs (BLM and USFS 2015, entire). All of the
measures listed above in PHMAs also apply in SFAs; in addition, the
following more restrictive measures also apply in SFAs.
Locatable Minerals: The General Mining Law of 1872, as amended,
opened the public lands of the U.S. to mineral acquisition by the
location and maintenance of mining claims. Mineral deposits subject to
acquisition in this manner are generally referred to as locatable
minerals. Locatable minerals include metallic minerals (e.g., gold,
silver, lead, copper, zinc, and nickel), nonmetallic minerals (e.g.,
fluorspar, mica, gypsum, tantalum, heavy minerals in placer form, and
gemstones), and certain uncommon variety minerals. Under the Federal
Plans, the BLM and FS have recommended that lands in SFAs be withdrawn
from location and entry under the Mining Law, subject to valid existing
rights. (BLM and USFS 2015). Under FLPMA, the first step of the
withdrawal process implementing that recommendation is for the
Secretary (or Deputy or Assistant Secretary) to ``propose'' a
withdrawal. 43 U.S.C. 1714(b). Upon publication of such a proposal in
the Federal Register, the lands are immediately segregated from
location and entry under the Mining Law as specified in the notice for
a period of two years. That segregation temporarily has essentially the
same effect as a withdrawal; that is, it closes the lands to location
and entry under the Mining Law, subject to valid existing rights.
Although the Secretary is free to make a final decision prior to or
after its expiration, the segregation is intended to allow time for
public input and allow time for her to make a final decision as to
whether to withdraw the lands. The Assistant Secretary took this first
step and proposed withdrawal of the SFAs on September 16, 2015. The BLM
will publish notice of the proposal concurrent with the announcement of
the BLM Records of Decision, which will segregate the lands. After
public involvement and preparation of various reports, including a NEPA
analysis, the Secretary will make a final decision as to whether to
withdraw the lands. 43 CFR 2310.3-2, 3. A withdrawal aggregating more
than 5,000 acres is limited by law to a term of 20 years (subject to
renewals) and is subject to Congressional notification. 43 U.S.C.
1714(c).
Fluid Minerals (Including Oil, Gas, and Geothermal): The Federal
Plans manage SFAs as NSO, without waiver, exception, or modification,
for fluid mineral leasing (with the exception of plans in Wyoming, as
discussed below). No Surface Occupancy is where areas are open to
leasing but surface-disturbing activities associated with development
of the lease cannot be conducted on the surface of the land. Access to
oil and gas deposits would require horizontal/directional drilling from
outside the boundaries of the NSO areas. This is the most restrictive
designation that allows for development of resources and protects
habitat.
Habitat Management: BLM and USFS will prioritize management and
conservation actions in SFAs, including, but not limited to, review of
livestock grazing permits/leases, free-roaming equid gathers, fire
management projects, and sagebrush restoration projects. Ensuring these
areas are analyzed first provides certainty that, if degraded habitat
conditions occur in the most important areas for the species,
management actions will be taken and possible restoration will occur.
The actions identified for implementation in the SFAs are more
restrictive versions of the measures described above for PHMAs. As
such, the measures implemented within SFAs are more effective at
reducing threats within these important areas. These measures have been
determined to be effective because they eliminate or reduce the impacts
from new development or improper grazing on Federal lands in SFAs.
General Habitat Management Areas--The Federal Plans designate
approximately 12.5 million ha (31 million ac) as GHMA (Figure 5), which
corresponds with approximately 27 percent of breeding habitat
rangewide. The GHMAs represent habitats that contain fewer leks and
sage-grouse than PHMAs. The designation as GHMAs provide sage-grouse
conservation by protecting habitat and connectivity between populations
and potential refugia in the event of catastrophic events such as
wildfire. While the amelioration of threats in GHMAs will likely be
less than in PHMAs due to less stringent required conservation
measures, GHMAs do have restrictions that benefit sage-grouse
conservation.
Specifically, the Federal Plans contain the following measures that
apply in GHMAs:
Fluid minerals (Including Oil, Gas, and Geothermal): General
Habitat Management Areas are open with constraints. Areas with standard
constraints may be open to mineral leasing with no specific management
decisions defined in the Federal Plans; however, these areas are
subject to lease terms and conditions. Terms and conditions may include
but not be limited to concentrating development, moving or supporting
infrastructure, or reducing project footprints, thereby reducing
habitat impacts. Moderate constraints include controlled surface
[[Page 59879]]
use, which can reduce habitat impacts and timing limitations which
reduce human activities during the times sage-grouse are most sensitive
to their presence.
Non-Energy Leasable Minerals: General Habitat Management Areas are
open to non-energy leasable mineral development, subject to
stipulations. In GHMA, development, including mineral exploration, is
subject to lek buffers to protect breeding birds, timing restrictions
to reduce human activities in important seasonal habitats while sage-
grouse are present, mitigation requirements, and other protective
measures discussed throughout this section, thereby reducing and
minimizing the impacts to the species and its habitat.
Rights-of-Way: For major transmission lines and pipelines, GHMAs
are either avoidance or exclusion areas, and may be available for
installation of pipeline and transmission lines/ROWs within existing
infrastructure corridors. Protective stipulations such as limiting road
use (to minimize disturbance to birds) or eliminating perching areas
(to reduce predation) will be incorporated into the ROW grants to
protect sage-grouse and its habitat. For minor ROWs (e.g., roads),
GHMAs are open and subject to stipulations that will protect sage-
grouse and its habitat, such as lek buffers and seasonal restrictions
(BLM and USFS 2015, entire). For solar and wind energy rights of way,
GHMAs are either designated avoidance or exclusion areas with limited
exceptions and available for location of new utility scale and/or
commercial development ROWs only with special stipulations that
minimize the impact to sage-grouse.
Mineral Materials: General Habitat Management Areas can be open to
new mineral material sales and free use permits subject to mitigation
requirements and application of RDFs that will protect sage-grouse and
its habitat.
Livestock Grazing: Federal Plans call for grazing to benefit or be
neutral to sage-grouse in GHMAs and PHMAs. However, GHMAs will be the
lower priority for monitoring as they comprise habitat with fewer leks
and sage-grouse.
Measures Applicable in Both PHMA and GHMA--In addition to specific
land use allocations described above, the new Federal Plans include
other protective measures that will further limit disturbance and
impacts to sage-grouse and their habitats. Additionally the plans
include monitoring and adaptive management to help ensure that
implementation of the allocative decisions and limitations on
disturbance are effective at conserving sage-grouse and their habitats,
and mitigation provisions where disturbance cannot be avoided. These
measures apply regardless of the habitat designation (PHMA, SFA, or
GHMA).
Land Tenure: The land tenure land use allocation refers to whether
the BLM or USFS intend to dispose of, or retain, Federal lands. A land
use allocation of retain means that the agencies will seek to retain
the land in Federal ownership, with limited exceptions. An allocation
of dispose means that the agencies may transfer the land out of Federal
ownership. Under the Federal Plans, PHMAs and GHMAs will be retained in
Federal management, with limited exceptions. Those limited exceptions
may occur when: (1) The agency can demonstrate that disposal of lands
will provide a net conservation gain to the sage-grouse; or (2) the
agency can demonstrate that the disposal of lands will have no direct
or indirect adverse impact on conservation of sage-grouse. The land
tenure allocation ensures that BLM and USFS lands within PHMAs and
GHMAs will be managed for sage-grouse into the future.
Trails and Travel Management: Travel management regulations require
BLM and USFS to establish lands as open, limited, or closed to off-road
vehicle use. In open areas all types of vehicle use is permitted at all
times, anywhere in the area. Limited areas are restricted at certain
times, in certain areas, and/or to certain vehicular use. Closed areas
are those that are closed to all types of vehicle use and include units
of the National Wilderness Preservation System. Areas that have not
been designated in one of these categories are undesignated and have no
restrictions on motorized access.
In PHMA and GHMA, temporary closures will be considered in
accordance with several regulations, including Closures and
Restrictions (43 CFR subpart 8364); Designated National Area (43 CFR
subpart 8351); Use of Wilderness Areas, Prohibited Acts, and Penalties
(43 CFR subpart 6302); and Conditions of Use (43 CFR subpart 8341).
These regulations help control access to sensitive areas and have been
employed strategically in the past to minimize access and disturbance
during critical time periods such as spring breeding. These measures
ensure that travel management decisions in PHMA and GHMA are made with
consideration of sage-grouse conservation needs. These measures help to
address concerns with potential disturbance due to travel on Federal
lands and will continue to be used by the agencies as needed.
Disturbance Caps and Density Limitations--Each Federal Plan
includes a disturbance cap that will serve as an upper limit (the
maximum disturbance permitted). Anthropogenic disturbance has been
identified as a key impact to sage-grouse. To limit new anthropogenic
disturbance within sage-grouse habitats, the Federal Plans establish
disturbance caps, above which no new development is permitted (subject
to applicable laws and regulations; e.g., General Mining Law of 1872,
and valid existing rights). This cap acts as a backstop to ensure that
any implementation decisions made under the Federal Plans will not
permit substantial amounts of new disturbance within the distribution
of sage-grouse on BLM and USFS lands.
For all States, except Wyoming and Montana, the BLM and USFS have
established a 3 percent disturbance cap at two spatial scales--the
Biologically Significant Unit (BSU) and at the project scale within
PHMAs (BLM and USFS 2015, entire). The BSU is a geographical/spatial
area, defined in conjunction with the States, within sage-grouse
habitat that contains habitats supporting several interconnected
populations. The disturbance cap calculation includes all anthropogenic
disturbances in PHMAs at the project scale regardless of land
ownership. If 3 percent disturbance is reached at the project level
scale, no further anthropogenic disturbances will be permitted by BLM
or USFS within PHMAs in the analysis area until the disturbance has
been reduced to less than the cap. For BSUs the disturbance
calculations will include anthropogenic disturbances in all habitat
designations. Those disturbance calculations will be completed on an
annual basis by the BLM's National Operation Center. If 3 percent
disturbance is reached, the Federal land management agencies will
examine all activities under their authority to determine if adaptive
management is necessary (depending on the spatial scale at which the 3
percent cap is hit). In Montana, the same disturbance cap approach is
used, but disturbance is limited to 5 percent, due to more detailed
mapping and disturbance calculations. Wyoming uses a different approach
to limiting disturbance in Core Areas, as discussed in Wyoming State
and Federal Plans, below. As previously stated, sage-grouse are
sensitive to disturbance, and small amounts of development within sage-
grouse habitats can negatively affect sage-grouse population viability
(Knick and Connelly 2011, p. 1). Thus, limiting future disturbances in
sage-grouse
[[Page 59880]]
habitats is an essential component of reducing or eliminating effects
related to disturbance, as recommended in the COT Report (USFWS 2013,
p. 13).
In addition to the percent disturbance cap at the BSU and project
scales, the BLM and USFS will use a density cap related to the density
of energy and mining facilities during project-scale authorizations. If
the disturbance density is greater than an average of 1/259 ha (1/640
ac) in PHMA, the project will either be deferred or co-located in an
existing disturbed area (subject to applicable laws and regulations,
such as the General Mining Law of 1872, valid existing rights, etc.).
Lek Buffers--Sage-grouse leks are communal breeding centers that
are representative of the breeding and nesting habitats. Conservation
of these areas is crucial to maintaining sage-grouse populations.
Protective buffers around leks conserve these important habitats
(Manier et al. 2014, pp. 1-2).
To develop ``biologically relevant and socioeconomically
practical'' lek buffer distances for use in the Federal Plans, the DOI
commissioned the USGS to review the scientific information on
conservation buffer distances for sage-grouse. The result was the
publication of a USGS Open-File Report, entitled Conservation Buffer
Distance Estimates for Greater Sage-Grouse--A Review, in 2014 (Manier
et al. 2014, entire). In addition to the land use allocations described
in this section, the BLM and USFS will apply the lek buffer distances
specified as the lower end of the interpreted range in PHMAs as
described in the report unless justifiable departures are determined to
be appropriate (see below). The lower end of the interpreted range of
the lek buffer distances are presented in Table 3. Note that for many
potential activities in PHMAs, the Federal Plans land use allocations
result in no or few activities allowed in these important areas (e.g.,
no surface occupancy restrictions). Thus, for those types of projects,
buffers are unnecessary in PHMAs because the activity is already
restricted.
Table 3--Lek Buffer Distances in Federal Plans
------------------------------------------------------------------------
Disturbance Lek buffer
------------------------------------------------------------------------
Linear Features (e.g., roads).......... 5 km (3.1 mi).
Infrastructure related to energy 5 km (3.1 mi).
development.
Tall structures (communication or 2 km (1.2 mi).
transmission towers, transmission
lines).
Low structures (e.g., fences, rangeland 2 km (1.2 mi).
structures).
Surface disturbance (human activities 5 km (3.1 mi).
that alter or remove natural
vegetation).
Noise and related disruptive activities 0.4 km (0.25 mi).
------------------------------------------------------------------------
The BLM and USFS may approve actions in PHMAs that are within the
applicable lek buffer distance identified above only if the BLM or USFS
determine that a buffer distance other than the distance identified
above offers the same or greater level of protection to sage-grouse and
its habitat. The BLM or USFS will make this determination based on best
available science, landscape features, and other existing protections,
with input from the local State fish and wildlife agency. The BLM or
USFS will explain its justification for determining that the approved
buffer distances meet these conditions in its project decision.
For actions in GHMAs, the BLM and USFS will apply the lek buffer
distances in Table 3 as required conservation measures to fully address
any impacts to sage-grouse identified during the project-specific NEPA
analysis. However, if it is not possible to locate or relocate the
project outside of the applicable lek buffer distance(s) identified
above, the BLM or USFS may approve the project only if: (1) Based on
best available science, landscape features, and other existing
protections, (e.g., land use allocations, State regulations), the BLM
or USFS determine that a lek buffer distance other than the applicable
distance identified above offers the same or a greater level of
protection to sage-grouse and its habitat, including conservation of
seasonal habitat outside of the analyzed buffer area; or (2) the BLM or
USFS determines that impacts to sage-grouse and its habitat are
minimized such that the project will cause minor or no new disturbance
(e.g., co-location with existing authorizations); and (3) any residual
impacts within the lek buffer distances are addressed through
compensatory mitigation measures sufficient to ensure a net
conservation gain, as outlined in the Mitigation Strategy (see below).
By applying lek buffers in addition to other measures, the Federal
Plans provide an additional layer of protection to the habitat in
closest proximity to leks and the areas documented in the literature to
be the most important for breeding and nest success (Manier et al.
2014, entire).
Required Design Features--Required Design Features (RDFs) are best
management practices to reduce potential effects to sage-grouse for
certain project-level features. The RDFs establish the minimum
specifications for certain activities to help mitigate adverse impacts.
Because of site-specific circumstances, some RDFs may not apply to some
projects (e.g., a resource is not present on a given site) and/or may
require slight variations (e.g., a larger or smaller protective area).
The need to apply RDFs to a project or to modify RDFs to address any
concerns unique to a project is determined during the project-specific
planning and environmental assessment. All variations in RDFs would
require that at least one of the following be demonstrated in the NEPA
analysis associated with the project/activity:
A specific RDF is documented to be not applicable to the
site-specific conditions of the project/activity (e.g., due to site
limitations or engineering considerations). Economic considerations,
such as increased costs, do not necessarily require that an RDF be
varied or rendered inapplicable;
An alternative RDF is determined to provide equal or
better protection for greater sage-grouse or its habitat;
A specific RDF will provide no additional protection to
sage-grouse or its habitat.
While the applicability and overall effectiveness of each RDF
cannot be fully assessed until the project level when the project
location and design are known, the Federal Plans include the
requirement to implement appropriate RDFs and these RDFs are expected
to further minimize impact to the species and its habitat. These RDFs
were developed based on the COT and NTT conservation objectives and the
best professional judgment of BLM and USFS wildlife biologists. For
example, any project that includes the development of a pond or similar
water feature would require RDFs that direct the design, construction,
and maintenance of the pond so that it would not provide habitat for
mosquitos that could carry West Nile virus (WNv).
Monitoring--While monitoring does not in and of itself reduce
impacts, it is an integral component of any conservation program's
long-term success. We take into consideration monitoring when
evaluating the overall adequacy and effectiveness of a conservation
strategy. The regulations for the BLM (43 CFR 1610.4-9) and the USFS
(36 CFR part 209, published July
[[Page 59881]]
1, 2010) require that Federal Plans establish intervals and standards,
as appropriate, for monitoring and evaluations based on the sensitivity
of the resource to the decisions involved. Pursuant to these
regulations, an interagency team developed The Greater Sage-grouse
Monitoring Framework that describes the methods to be used to collect
monitoring data and to evaluate implementation and effectiveness of the
sage-grouse planning strategy and the conservation measures contained
in the Federal Plans (BLM and USFS 2014, entire).
To ensure that the BLM and the USFS are able to make consistent
assessments about sage-grouse habitats across the range of the species,
this framework lays out the methodology--at multiple scales (broad,
mid, fine, and site scales)--for monitoring of implementation and
disturbance and for evaluating the effectiveness of the BLM and USFS
actions to conserve the species and its habitat. Monitoring efforts
will include data for measurable quantitative indicators of sagebrush
availability, anthropogenic disturbance levels, and habitat conditions.
Implementation monitoring results will allow the BLM and the USFS to
evaluate the extent that decisions from their Federal Plans to conserve
sage-grouse and their habitat have been implemented. State fish and
wildlife agencies will continue to collect population monitoring
information, which will be incorporated into effectiveness monitoring
as it is made available.
Managing and monitoring sage-grouse habitats are complicated by the
differences in habitat selection across the range and habitat use by
individual birds within a given season. Therefore, the monitoring
framework evaluates multiple habitat suitability indicators to evaluate
plan effectiveness. Descriptions of these habitat suitability
indicators for each scale are provided in the ``Sage-Grouse Habitat
Assessment Framework: Multiscale Habitat Assessment Tool'' (Stiver et
al. 2010, entire).
Results from monitoring data will define when habitat objectives
are not being achieved, disturbance caps have been breached, and
adaptive management triggers have been met (see below). Having a
consistent framework for all management units will allow the agencies
to track information and trends across management units, which has not
been possible in the past. The BLM and USFS have and committed to
increased monitoring, and we expect the results to give the agencies
valuable data to assist and improve implementation and improve the
overall effectiveness of the BLM and USFS plans.
Adaptive Management--Like monitoring, adaptive management is a key
element of complex long-term conservation strategies, particularly
where there is uncertainty. Adaptive management is a decision process
that promotes flexible resource management decision-making that can be
adjusted in the face of uncertainties as outcomes from management
actions and other events become better understood. This flexibility is
critical for ensuring long-term conservation of sage-grouse into the
future, as it will allow the Federal Plans to adjust to changed
conditions or new science that cannot be foreseen at this time. Careful
monitoring of these outcomes both advances scientific understanding and
helps with adjusting resource management directions as part of an
iterative learning process. Adaptive management also recognizes the
importance of natural variability in contributing to ecological
resilience and productivity. An effective adaptive management program
will ultimately improve the overall effectiveness of the conservation
program through time.
Adaptive management will help ensure that sage-grouse conservation
measures in the Federal Plans are effective, and if they are not
effective, that corrective actions will be implemented. Each planning
area (with the exception of the Lander and North Dakota Plans) has
identified adaptive management soft and hard triggers and responses.
Soft triggers represent an intermediate threshold indicating that
management changes are needed at the project/implementation level to
address habitat and population losses. If a soft trigger is met, the
BLM will apply more conservative or restrictive implementation
conservation measures to mitigate for the specific causal factor in the
decline of populations and/or habitats, with consideration of local
knowledge and conditions. These types of adjustments will be made to
preclude meeting a hard trigger (which signals more severe habitat loss
or population declines). Hard triggers represent a threshold indicating
that immediate action is necessary to stop a deviation from sage-grouse
conservation objectives as set forth in the Federal Plans. Tripping a
hard trigger will result in BLM or USFS switching to a more restrictive
alternative from the Final Environmental Impact Statement either in
whole or in part to address the causal factors (e.g., immediate
cessation of authorizing land use authorizations within the area).
After the hard-trigger is tripped, the BLM or USFS will determine the
causal factor and develop and implement a corrective strategy. While
adaptive management is not a land use allocation decision, the Federal
Plans have developed species and habitat triggers and tied them to
appropriate management actions in the Federal Plans, providing an
additional certainty that action will be taken if the species or
habitat objectives are not being met.
Mitigation--All of the Federal Plans require that impacts to sage-
grouse habitats are mitigated and that compensatory mitigation provides
a net conservation gain to the species. All mitigation will be achieved
by avoiding, minimizing, and compensating for impacts following the
regulations from the White House Council on Environmental Quality (CEQ)
(40 CFR 1508.20; e.g., avoid, minimize, and compensate), hereafter
referred to as the mitigation hierarchy. If impacts from BLM/USFS
management actions and authorized third party actions that result in
habitat loss and degradation remain after applying avoidance and
minimization measures (i.e., residual impacts), then compensatory
mitigation projects will be used to provide a net conservation gain to
the species. Any compensatory mitigation will be durable, timely, and
in addition to that which would have resulted without the compensatory
mitigation.
The Federal Plans will establish a Management Zone Greater Sage-
Grouse Conservation Team (hereafter, Team) to help guide the
conservation of sage-grouse, within 90 days of the issuance of the
Record of Decision. This Team will develop a Management Zone Regional
Mitigation Strategy using the BLM's Regional Mitigation Manual as a
framework. The Team will also compile and report on monitoring data
(including data on habitat condition, population trends, and mitigation
effectiveness) from States across the MZs and will use these data to
either modify the appropriate Regional Mitigation Strategy or recommend
adaptive management actions. Requiring mitigation for residual impacts
provides additional certainty that, while impacts will continue at
reduced levels on Federal lands, those impacts will be offset to a net
conservation gain standard.
Fire and Invasives Assessment Tool (FIAT)--The Federal Plans
recognize that fire and invasive plants are the primary impact to sage-
grouse habitat in the Great Basin. The BLM and USFS convened an
interagency team to develop a rangewide assessment and step-down
approach to address these impacts (i.e., FIAT). The result was the
``Greater Sage-Grouse Wildfire, Invasive Annual Grasses and Conifer
Expansion
[[Page 59882]]
Assessment'' report (BLM 2014, entire). The FIAT assessments are
incorporated in the Federal Plans. The assessments identify the
habitats most resistant and resilient to wildfire and invasive plants
to target fire management and ecosystem restoration activities (BLM and
USFS 2015, entire). The FIAT Assessments ensure that wildfire and
invasive plant management and restoration resources are deployed in the
landscapes where they will be most effective in reducing this potential
threat.
As part of the assessment process, Instructional Memorandum (IM)
2014-134 was released August 28, 2014. This IM, in part, provided
guidance for the BLM field offices to cooperate with interagency
partners to complete FIAT assessments at local scales for five priority
landscapes in sage-grouse habitat, which roughly corresponded to PACs
in the Great Basin as identified in the COT Report (USFWS 2013, p. 14)
(i.e., Central Oregon, Northern Great Basin, Snake/Salmon/Beaverhead,
Southern Great Basin, Western Great Basin/Warm Springs Valley). For
each priority landscape, regional findings were stepped down to
describe local conditions by Project Planning Area (PPA) and associated
treatment needs and management priorities. Each PPA contained emphasis
areas, i.e., portions of a PAC with important habitat characteristics
and sage-grouse populations that are impacted by wildfire, invasives,
and conifer encroachment. The assessments were included in the Federal
Plans. The FIAT Assessments are described in more detail in the
Wildfire and Invasive Plants section, below.
Federal Plans Summary
The Federal Plans provide major new regulatory mechanisms to
protect sage-grouse from land use activities on more than half of the
occupied range. In 2010, the Federal land management plans did not
contain, for the most part, sage-grouse specific measures, and areas
important to the species were open to land uses that could disturb
habitat (75 FR 13910, March 23, 2010, p. 13982). Since then, the BLM
and USFS have amended or revised 98 plans to address threats to the
species (BLM and USFS 2015, entire). The Federal Plans exclude or
reduce habitat-disturbing activities in PHMAs that contain the most
important habitats for conservation. General Habitat Management Areas
are still being managed for the benefit of sage-grouse, but BLM and
USFS have flexibility to site development or leasing in GHMAs to keep
priority areas intact. While some disturbance can occur in the GHMAs,
as they contain fewer sage-grouse when compared to PHMAs, protective
measures for activities in those areas minimize impacts and require
mitigation. The combination of restrictive PHMAs and less restrictive
GHMAs provide conservation for sage-grouse on approximately 27 million
ha (67 million ac) while still enabling the multiple uses that are part
of the BLM and USFS missions. While there are impacts associated with
on-going activities, the Federal Plans provide adequate mechanisms to
reduce and minimize new disturbance in the most important areas for the
species. By following COT Report and NTT guidance and restricting
impacts in the most important habitat, the Federal Plans ensure that
high-quality sage-grouse lands with substantial populations are
minimally disturbed and sage-grouse within this habitat remain
protected.
Wyoming State and Federal Plans
Approximately 37 percent of estimated sage-grouse abundance occurs
in Wyoming (Doherty et al. 2010a, p. 21). The Wyoming Basin, the
majority of which occurs within the State of Wyoming, has been
identified as one of two areas with the highest population connectivity
(Knick and Hanser 2011, p. 391). Therefore, conservation of this area
is essential to the persistence of sage-grouse into the future. We have
also identified this area as a stronghold for the species (USFWS
2014a).
The Wyoming Plan relies on the protection of important sage-grouse
habitats in the State using a suite of avoidance and minimization
measures. Important habitats (Core Areas) were identified by the
highest densities of males attending leks, and added associated
habitats through a scientific process engaging State wildlife experts
and local working groups. Core Areas encompass approximately 83 percent
of the breeding population of sage-grouse in Wyoming on approximately
24 percent of the total land surface of the State (Budd, Wyoming
Wildlife and Natural Resource Trust, pers. comm. 2015). Additional
connectivity areas were identified for protection to ensure population
movements. Protective measures associated with the Wyoming Plan
(described below) do not extend to lands located outside the identified
Core Areas but that are still within occupied sage-grouse habitat. In
non-Core Areas, the minimization measures are implemented to maintain
habitat conditions such that there is a 50 percent likelihood that leks
will persist over time (Wyoming Game and Fish Department 2009, pp. 30-
35). While impacts to sage-grouse are possible in non-core habitats,
the majority of primary habitats necessary for long-term conservation
of sage-grouse in Wyoming are included in the identified Core Areas.
Core Area maps are reviewed and adjusted every 5 years to allow for the
incorporation of new data that ensures the most important areas for
sage-grouse receive protections. For example, the State of Wyoming
reviewed the Plan in 2015 and added 58,191 ha (143,794 ac) to the Core
Areas.
The key component of the Wyoming Plan is the application of State
regulatory measures associated with the Wyoming Plan on all lands in
Wyoming (6 million ha (15 million ac)) as any project requiring a State
permit must meet the conditions of the strategy regardless of land
ownership. Specifically, the Wyoming Plan applies to all activities
that require permits from Wyoming's Industrial Siting Council (ISC)
(Wyoming E.O. 2015-4, entire). The Federal Plans in the State
incorporate the Wyoming strategy, thereby ensuring implementation of
the strategy on Federal land surfaces and subsurface regardless of the
need for a State permit (see further discussion below). The completion
of the Federal plans also facilitates greater coordination between the
State and Federal agencies in implementing and monitoring the Wyoming
Plan. This addition to the Wyoming Plan further increases the value of
this effort in conserving sage-grouse by covering all lands in the
State with a single regulatory framework to reduce affects to sage-
grouse in the most important habitats in the State. Therefore, the
strategy conserves sage-grouse through an effective regulatory
mechanism for conservation.
The Wyoming Plan first encourages projects to be re-located outside
of Core Areas by reducing restrictions in non-Core Areas for
development activities. Where projects cannot be relocated, the Plan
requires a combination of restricted development densities, development
disturbance caps, seasonal restrictions, and lek buffers to minimize
habitat disturbance within Core Areas. Surface disturbance is limited
to 5 percent within Core Areas reducing fragmentation and degradation
of habitat (Wyoming E.O. 2015-4, Attachment A, p. 6; Wyoming E.O. 2015-
4, Attachment B, p. 5). While 5 percent is greater than the 3 percent
used in other States, habitat disturbance monitoring in Wyoming is
conducted at a much finer scale and is, therefore, more inclusive in
the number and extent of disturbances measured. Additionally, Wyoming
includes natural disturbances, such as wildfire, in the
[[Page 59883]]
disturbance measure, which is not included in any other State.
Therefore, the higher disturbance cap permitted in Wyoming is not more
permissive as a simple comparison of the numbers suggests. Limiting
development to one site per 259 ha (640 ac) on average reduces the
disturbance footprint to a level where impacts to sage-grouse are
minimal, if nonexistent (Holloran 2005, p. 58; Taylor et al. 2012a, p.
31; Holloran et al. 2010, p. 71). Development is not permitted if
either of these criteria (development density or disturbance caps) is
exceeded. Incentives to consolidate disturbance further reduce
development impacts by minimizing habitat loss and degradation within
large landscapes. Where development cannot be moved away from breeding
habitats, an NSO buffer of 1 km (0.6 mi) of a lek is required, as well
as a seasonal restriction on project development. Activity within 6.4
km (4 mi) of a lek is also restricted from March 15 through June 30.
These restrictions reduce impacts to the sage-grouse by avoiding
disturbance during breeding season (Wyoming E.O. 2015-4, Attachment B
pp. 2-6; Fedy et al. 2012, p. 1063; Doherty et al. 2010a, entire).
Disturbance (including all anthropogenic and natural disturbances)
is tracked via a geospatial database (measuring disturbance at 1 m (3.3
ft). Including all disturbances with such precision ensures that all
potential impacts to sage-grouse, regardless of source, are being
considered prior to authorizing new development. Additional
conservation is gained through the enforcement of noise restrictions at
the perimeter of leks, which minimizes disturbance to birds visiting
the leks (Wyoming E.O. 2015-4, Attachment B, p. 8; Patricelli et al.
2013, p. 241; Blickley and Patricelli 2012, p. 33; Blickley et al.
2012, p. 470).
Outside of core-habitat, there are NSO restrictions within 0.4 km
(0.25 mi) of leks to minimize impacts to sage-grouse (E.O. 2015-4,
Attachment B, p. 6), and activities within 3.2 km (2 mi) of a lek are
restricted during the breeding season. These relaxed stipulations
encourage development to move outside of Core Areas, while still
providing some protections to birds in non-Core Areas. While impacts to
birds and their habitats may occur outside of Core Areas, only about 17
percent of the sage-grouse bird density occurs in those areas (Budd,
Wyoming Wildlife and Natural Resources Trust, pers. comm. 2015),
minimizing impacts to sage-grouse and allowing for the continuation of
the economies that support the State.
In 2010, we analyzed the Wyoming Plan and noted that it included
measures that if fully implemented could ameliorate threats to sage-
grouse (75 FR 13910, March 23, 2010, pp. 13974-13975). We now have data
that shows how implementation has avoided and minimized impacts in core
habitats. Since 2012, the majority of the 600 projects proposed in Core
Areas and reviewed by the State complied with the criteria of the
Wyoming Plan. Projects that added additional surface disturbance within
Core Areas were minimized or co-located with existing disturbance. Less
than 8 ha (20 ac) of new disturbance has occurred within Core Areas
since 2012 (USFWS 2014b). Other applications were denied that would
negatively affect sage-grouse, including a wind lease application on
State trust lands (USFWS 2014b). The number of oil and gas wells
permitted in Core Areas has also declined as industry seeks to avoid
conflict with sage-grouse. Between 2006 and 2012, vertically drilled
single well permits declined 65 percent, while directionally and
horizontally drilled wells, from outside the Core Areas, increased by
66 and 1,337 percent, respectively (USFWS 2014b). This change in the
number and nature of oil and gas well permits further demonstrates the
efficacy of the Wyoming Plan. Other industries, such as mining, have
initiated restoration efforts to remove existing disturbance and
improve habitat for sage-grouse. These data demonstrate the efficacy of
the Wyoming Plan in removing and reducing impacts to sage-grouse from
development activities.
The Federal Plans in Wyoming have incorporated the Wyoming Plan
Core Area strategy. Core habitats designated by the State have been
identified as PHMA on BLM and USFS lands, while non-core habitats are
designated as GHMA. Both the BLM and USFS have adopted the more precise
disturbance measurements developed by the State at 5 percent. With the
exception of the fluid and non-energy leasable mineral programs, the
Federal Plans in Wyoming are the same as with other States. However,
these modifications were made to expand the protections already
implemented by the State to Federally managed lands.
The fluid mineral designation in the Federal Plans in Wyoming is
different than in the other Federal Plans throughout the range, which
was necessary to adopt the Wyoming Plan. For fluid minerals in Wyoming,
PHMAs are designated Controlled Surface Use, which means these areas
are open to leasing, but would require proposals for surface-disturbing
activities only be authorized in accordance with the controls or
constraints specified in the Wyoming Plan. For non-energy leasable
minerals, PHMAs are open to non-energy leasable minerals, but are
subject to measures intended to minimize impact in important (core)
areas pursuant to the Wyoming Plan.
A recent analysis of the Wyoming Plan predicted that 83 percent of
the landscape within core area boundaries supports increasing or stable
populations of sage-grouse (Burkhalter et al. 2015, p. 20) due to the
conservation of high-quality intact sagebrush habitats. Seventeen
percent of the landscape within Core Areas may have declining
populations as those areas occur around the edges of Core Areas and,
therefore, are subject to disturbances outside these protected areas
(Burkhalter et al. 2015, p. 20). The factors identified in this report
as essential for conservation, such as maintaining connected landscapes
in sagebrush cover, and minimizing oil and gas development, are all key
components of the Wyoming Plan. The recent completion of the BLM and
USFS Federal Plans should reduce disturbance around the edge of Core
Areas, thereby increasing the efficacy of the strategy. The Wyoming
Plan was renewed in July 2015 ensuring that the protections will
continue until at least 2022 (Wyoming E.O. 2015-4, p. 6).
The Wyoming Plan has been in place for 8 years, and has
demonstrated its conservation value by protecting areas identified as
important to sage-grouse conservation. As described above, development
has been removed or minimized in Core Areas, protecting intact habitats
from fragmentation and degradation. Carefully controlled development
within Core Areas has had minimal to no impact to the sage-grouse as
demonstrated by the increasing populations within Core Areas
(Burkhalter et al. 2015, p. 20). Protections outside the Core Areas
also provide additional conservation to habitats and birds by
maintaining connectivity between Core Areas. The adoption of the
Wyoming Plan into Federal land plans provides additional assurances
that protections of Core Areas will be achieved on all lands,
regardless of land ownership.
Montana and Oregon Conservation Efforts
State and Private lands account for 42 percent of the sage-grouse
occupied range. Plans developed by States for sage-grouse vary widely
in the nature of the protective measures, with some measures being
regulatory and some being voluntary. State Plans in three States--
Wyoming, Montana, and Oregon--contain regulatory measures
[[Page 59884]]
that effectively address threats on State or private lands. Wyoming is
addressed separately above because of its integration with the Federal
Plans in that State (See Wyoming section above).
Since 2010, all States within the range of the species, except for
California, have drafted, finalized, or implemented conservation plans
for the sage-grouse. These plans take different approaches, but, in
general, they identify important conservation objectives for sage-
grouse, and provide mechanisms to incentivize conservation. While 10 of
the 11 States in the range of the sage-grouse updated plans to conserve
the species by incorporating new information, which is a testimony to
their concern and commitment to protect the grouse and its habitats,
not all of these plans have been fully implemented or regulatory in
scope. As discussed above, we will assess the conservation actions
mandated by the State plans in Wyoming, Montana, and Oregon because
they provide the greatest degree of regulatory certainty in addressing
potential threats on State and private lands not under the jurisdiction
of Federal Plans. We appreciate the work that each State has completed,
but we could not include all planning efforts in other States in our
analysis because they did not meet a level of certainty for
implementation and effectiveness. Regardless of the nature of State
conservation efforts, we reviewed and considered the conservation
efforts developed and implemented by the States consistent with the Act
(16 U.S.C. 1533(b)(1)(A)). A description of the other applicable State
laws is included below in Regulatory Mechanisms and Other Conservation
Plans.
Montana--The Montana Sage-Grouse Habitat Conservation Program
(Montana Plan) is similar to the Wyoming Plan in that it is a
regulatory mechanism that applies to Core Areas across the State. In
2014, the Governor signed an Executive Order that provides sage-grouse
conservation directives for activities on State and private lands where
approximately 70 percent of sage-grouse habitat in Montana occurs
(Montana E.O. 10-2014, entire). The Governor of Montana issued a second
Executive Order putting into effect the Montana Sage Grouse Habitat
Conservation Program and giving it full regulatory authority (Montana
E.O. 12-2015, entire). This second Executive Order included a full
review of State regulatory authority over activities in sage-grouse
habitat in Montana. The Montana Plan is regulatory on State lands and
on any private lands where State permits or authorizations are
required; it requires that State agencies adhere to the requirements
and stipulations of the Program. The Montana Executive Order created
the Montana Sage-Grouse Oversight Team (Montana Oversight Team)
composed of State Agency Directors to oversee administration of the
Montana Plan. Additional staffing of the Montana Plan includes a
Program Manager, GIS Manager and technician, biologists, and support
for seasonal work. The Montana Plan and supporting documents clearly
identify under what regulatory authority the State and private entities
are required to act in accordance with the Executive Order.
In the previous section, we describe in detail how the Wyoming Plan
addresses the issues of habitat loss and fragmentation and disturbance
to sage-grouse. The Montana Plan closely follows the structure of the
Wyoming Plan and, similarly, uses information and guidance from the COT
Report to identify and reduce impacts associated with threats to sage-
grouse in Montana. The Montana Executive Order also identifies
scientifically valid performance standards based upon number of males
at leks to ensure that the Montana Plan actions are effective;
monitoring protocols are also included. The Montana Plan specifies
adaptive management strategies in response to this monitoring
information. Implementation of the Montana Plan will occur immediately
in response to future and additional actions that occur in sage-grouse
habitat; full implementation of the Montana Plan is expected by January
2016.
The Montana Plan includes similar requirements as those identified
in the Wyoming Plan including the following: Use of a 5 percent
disturbance cap in Core Areas; allowance of only one disturbance (well
pad, grouped impacts) per section (259 ha (640 ac)) for oil and gas and
mining; prohibition of sagebrush eradication or conversion; and lek
buffers and disturbance buffers in both Core Areas and general
habitats. For a complete discussion of why these methods are effective
in supporting viable sage-grouse populations, please see the previous
discussion of the Wyoming State and Federal Plan, above.
The Montana State Legislature recently passed, and the Governor
signed, the Montana Sage-Grouse Protection Act during the 2015
legislative session. This Act ensures that critical funding and support
are available for necessary sage-grouse conservation efforts in the
future. This Act funds staff resources to implement the conservation
program, and includes a revolving conservation fund with an initial
balance of 10 million dollars. This funding authorization is directly
tied to the implementation of the E.O. and provides certainty of
implementation. The Governor also signed the Montana Greater Sage-
Grouse Stewardship Act, which establishes the Montana Sage-Grouse
Oversight Team and provides grant-based funding for voluntary sage-
grouse conservation efforts. Unless specifically excluded, all State
actions (including those prescribed for sage-grouse conservation)
require review under the Montana Environmental Policy Act, which is
analogous to the National Environmental Policy Act at the State level.
Given this commitment from the State, there is certainty that the
Montana Plan will be implemented and effective.
In addition to the Montana Plan, private landowners in Montana have
worked with Montana Fish, Wildlife, and Parks to enroll nearly 80,000
ha (200,000 ac) in 30-year sagebrush leases. Montana Fish, Wildlife,
and Parks provided 1.2 million dollars for these leases where
landowners agreed not to eliminate sagebrush on the enrolled acres
(Wightman, Montana Fish, Wildlife, and Parks, 2015, pers. comm.).
Oregon--The Oregon Sage-Grouse Action Plan (Oregon Plan) ensures
regulatory protection and enhancement of sage-grouse and their habitat
on State and private lands in Oregon. This Plan is backed by two new
rules in the Oregon Legislature and an Executive Order. The Oregon Plan
includes explicit habitat and population goals with incremental
completion dates and prioritizes avoidance with standards for
mitigation of impacts if necessary. The Oregon Plan builds on the core
area strategies utilized by Wyoming and Montana to address all sage-
grouse habitats. The Oregon Plan applies to more than 6 million ha
(approximately 15 million ac) of all landownership types and includes
regulatory mechanisms, such as disturbance caps and adaptive management
triggers, to reduce impacts to sage-grouse in the State.
The Oregon Plan includes similar provisions to those identified in
the Wyoming Plan and Montana Plan. Based upon the nature and extent of
threats to sage-grouse in Oregon and information in the 2010 Finding
and COT Report, the Oregon Plan includes limitations on disturbance in
Core Areas through disturbance caps and an avoidance and minimization
strategy. Actions permitted through county actions (such as a new
subdivision or county road) as well as actions permitted through State
agencies (such as a new large-scale energy or utility project) are both
subject to the Plan as
[[Page 59885]]
outlined in the two Rules (Oregon OAR 635-140-0025, entire; and Oregon
OAR 660-023-0115, entire; OR E.O. 2015). For specific discussions of
why these stipulations are effective, please see the Wyoming State and
Federal Plan discussion. The Oregon Plan identifies fire management
measures, such as funding and logistical support for Rural Fire
Protection Areas. Wildfire and the fire/invasives cycle can impact
large areas of sage-grouse habitat in very short periods of time,
making prevention of wildfire important for minimizing effects. This
commitment improves the likelihood that wildfires will be effectively
controlled to reduce the potential negative effects to sage-grouse
habitat. Further, the Oregon Plan includes a State-administered
compensatory mitigation program designed to synchronize with BLM
mitigation processes. The Oregon Plan has identified an overall
population goal of 30,000 birds with interim performance measures and
corresponding monitoring protocol to ensure progress towards the larger
goal. The Oregon Plan commits to adaptively manage for sage-grouse in
response to this monitoring data.
Many of the Oregon Plan measures are similar or complementary to
those included in the Federal Plans. This aligned framework of tools,
rules, and protocols across local, State, and Federal processes will
ensure that coordinated mitigation and voluntary actions conserve the
species across all land ownerships in Oregon. It also creates the
transparency and credibility necessary for public support of the
State's strategy.
The Oregon Plan identifies several State agencies as well as
specific staffing and funding requirements necessary for full
implementation of the Oregon Plan. In addition to gaining public
support and identifying necessary staffing, financial support has been
secured through the Oregon Watershed Enhancement Board, which has
committed 10 million dollars over the next 10 years. These funds are
used to implement aspects of the Oregon Plan that manage impacts from
fire and invasive species. In addition, 3.34 million dollars of new
funding for sage-grouse conservation was appropriated by the Oregon
Legislature for the 2015 through 2017 funding cycle. These commitments
ensure that the Oregon Plan will be successfully implemented for the
conservation of the species.
Sage Grouse Initiative
The Sage Grouse Initiative (SGI) works with landowners and other
partners to design and deliver voluntary conservation practices,
including grazing systems and conservation easements, on private lands
to ameliorate impacts to sage-grouse while improving the sustainability
of working ranches. Private lands account for 39 percent of sage-grouse
occupied range. Habitat under private ownership may be at greater risk
of conversion through development than neighboring Federal land. The
Sage Grouse Initiative's past, present, and future contributions are
considerable because, while private lands are less than half of the
sage-grouse occupied range, the potential biological value of those
lands for various phases of the species' life history is high, as is
their potential conservation value. The NRCS carries out conservation
through a variety of authorities and tools. We have identified specific
activities that are directly benefiting sage-grouse under SGI (Table
4).
Table 4--Conservation Completed by SGI for 2010 to 2014
[From NRCS 2015a, p. 38]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Grazing systems Easements Conifer removal Seeding Fence modification
MZ -------------------------------------------------------------------------------------------------------------
ha ac ha ac ha ac ha ac km mi
--------------------------------------------------------------------------------------------------------------------------------------------------------
I......................................... 554,529 1,370,269 26,661 65,881 73 181 3,074 7,597 182 113
II........................................ 216,285 534,450 95,186 235,210 1,437 3,551 1,023 2,527 37 23
III....................................... 15,199 37,557 4,529 11,191 7,630 18,855 2,240 5,534 16 10
IV........................................ 127,448 314,930 39,727 98,167 83,405 206,099 12,035 29,740 153 95
V......................................... 35,736 88,306 11,684 28,871 71,061 175,595 439 1,085 129 80
VI........................................ 33,619 83,073 1,768 4,369 0 0 274 677 47 29
VII....................................... 3,667 9,061 3,316 8,193 389 962 388 960 2 1
-------------------------------------------------------------------------------------------------------------
Total................................. 986,482 2,437,646 182,870 451,882 163,996 405,243 19,474 48,120 565 351
--------------------------------------------------------------------------------------------------------------------------------------------------------
Grazing Management--The objective of SGI's Prescribed Grazing
protocol is to ensure that rangelands are managed sustainably and
support functional sagebrush ecosystems (NRCS 2015a, p. 23). Since
2010, SGI has improved rangeland health through rotational grazing
systems, re-vegetating with sagebrush and perennial grasses, and
controlling invasive species (NRCS 2015a, p. 23). The techniques
employed by SGI to improve and/or maintain habitat suitability for
sage-grouse are consistent with the recommendations provided in the COT
Report (USFWS 2013, pp. 45-46).
Easements--The SGI has enrolled 182,109 ha (450,000 ac) in
conservation easements; 80 percent of these occur inside occupied sage-
grouse habitat, and 94 percent provide permanent protection (NRCS
2015a, p. 1). Under these easements, habitat cannot be subdivided or
converted to agriculture, thus protecting sage-grouse habitat from
development. By maintaining these lands in sagebrush habitat, these
easements support existing sage-grouse populations and decrease
likelihood of fragmentation.
Restoration--The SGI ameliorates impacts through restoration of
disturbed and degraded habitat. The SGI has reclaimed 163,995 ha
(405,241 ac) of otherwise suitable habitat by direct removal of
conifers encroaching on sagebrush habitat. Removal of early-stage
conifers should improve and expand sage-grouse habitats by precluding
ecological type conversion to an otherwise unsuitable habitat (Johnson
and Miller 2006, p. 8; Casazza et al. 2011, p. 163; Knick et al. 2013,
p. 1544). Through monitoring data, SGI is working to assess how birds
use areas with recent conifer removal. Anecdotal reports suggest that
sage-grouse have responded positively to these efforts. Moreover, SGI
and others are developing conifer maps in MZs III, VI, V, and VII (NRCS
2015a, p. 19). The SGI will use this new information to target efforts
where removal will have the greatest value for sage-grouse (NRCS 2015a,
p. 19 and NRCS 2015b, p. 10).
Fence modification is another aspect of SGI restoration. Marking
and
[[Page 59886]]
removing fences can reduce direct mortality to sage-grouse by reducing
fence strikes. NRCS estimates that SGI fence marking prevents 2,600
collisions annually (NRCS 2015a, p. 22).
The SGI uses direct seeding to restore habitat through the addition
of native species. Through grazing systems, re-vegetating former
rangeland with sagebrush and perennial grasses and controlling invasive
weeds, SGI has enhanced rangeland health inside PACs (NRCS 2015a, p.
2).
Monitoring and Adaptive Management--The NRCS has continued to
improve conservation of sagebrush habitat through new information and
new scientific methods (NRCS 2015a, entire; NRCS 2015b, entire). They
employ habitat suitability models to target conservation easements and
address conifer encroachment in the early stages of development to
improve the benefit of their treatments. By monitoring and tracking the
effectiveness of their efforts and their willingness to incorporate
this information into their management, SGI has ensured the long-term
implementation of their program will achieve conservation for sage-
grouse on private lands.
Since 2010, the NRCS, through the SGI, has invested approximately
425.5 million dollars, with 76 percent of investments occurring within
PACs (Table 4). To date, 1,129 ranches have participated in the SGI,
across all 11 States in the species' range (NRCS 2015a, p. 1). Through
the 2014 Farm Bill, NRCS will continue and accelerate its efforts,
ensuring a durable and increasingly targeted conservation effort on
private lands in sage-grouse country (NRCS 2015a, p. 29; NRCS 2015b, p.
6). Starting in 2015, NRCS will add 198 million dollars to continue
sage-grouse conservation on private lands in the future (NRCS 2015a, p.
29; NRCS 2015b, p. 6).
Where they have been implemented, these conservation efforts have
addressed certain potential threats to sage-grouse, such as urban and
exurban development, infrastructure, and improper grazing (defined for
the purposes of this analysis as grazing at an intensity or in ways
that impair ecosystem functions of the sagebrush ecosystem) [See
Grazing and Rangeland Management, below]. The nature of those potential
threats and the impact of SGI's conservation in ameliorating some
potential threats are discussed in further detail below (see Summary of
Information Pertaining to the Five Factors). Given the history of
success of this program, the level of local and national support, NRCS'
application of adaptive management, demonstrated partnerships, and the
recent reauthorization and dedicated resources through the 2014 Farm
Bill, we expect that SGI will continue to provide valuable on-the-
ground conservation to sage-grouse and its habitat into the future.
Candidate Conservation Agreements
Over the past 2 years, we have prioritized Candidate Conservation
Agreements with Assurances (CCAAs) to focus conservation on non-Federal
lands for the benefit of sage-grouse. Candidate Conservation Agreements
with Assurances provide assurances to both landowners and the Service
that conservation will continue into the future without resulting in a
regulatory burden on the landowners involved. Through these agreements,
landowners agree to avoid certain activities that may be harmful to
sage-grouse, or to undertake activities on their property that benefit
sage-grouse (e.g., restore degraded habitat, create new habitat,
augment existing populations, and restore historical populations). In
Oregon, more than 575,000 ha (1.4 million ac) of rangeland have been
effectively conserved for sage-grouse through enrollment in a CCAA. In
Wyoming, 36 CCAAs have been completed, with more than 180,000 ha
(445,000 ac) enrolled. In addition to CCAAs, we also employ Candidate
Conservation Agreements; these agreements can exist between the Service
and private landowners, local governments, States, and Federal
agencies.
Candidate Conservation Agreements operate through tailored
conservation strategies that specify required activities that will
benefit sage-grouse. Although individual agreements vary, the focus is
always on improving sage-grouse habitat or populations. Through CCAAs,
landowners may restore existing degraded sagebrush to provide habitat
for sage-grouse. They may also create new habitat or simply, as with
conservation easements, protect existing habitat for the benefit of the
species. As an example, landowners enrolled in the Oregon CCAA have
agreed to maintain contiguous habitat by avoiding further
fragmentation. The objective for this required conservation measure is
for no net loss in: (1) Habitat quantity (as measured in acres) and (2)
habitat quality (as determined by the ecological state). Additionally,
every enrolled landowner must have at least one conservation measure in
place to address each threat identified during the baseline assessment
of individual properties.
Candidate Conservation Agreements are voluntary agreements. As
such, it is possible for landowners to terminate these agreements.
However, based on previous experiences with existing CCAAs for a
variety of other species (Anderson and Moore, USFWS, 2015, pers.
comm.), we have found that landowners generally do not withdraw from
these agreements. Of the 34 CCAAs the Service has finalized nationwide
for a variety of species, 32 are still in effect and 2 expired based on
the term of the agreement, indicating that landowners continue to
implement CCAAs following finalization of the agreements (Anderson and
Moore, USFWS, 2015, pers. comm.). Landowners commit to beneficial
actions that they are willing to implement to receive the assurances of
no further regulatory requirements if the species would become listed.
In addition to CCAAs, we work with private landowners through the
Partners for Fish and Wildlife Program through Private Landowner
Agreements to benefit species and their habitats. A past study on the
retention of restored wetlands found that the vast majority of
landowners continued to implement the practices from their agreements
well after the agreement ended (Fairchild 2004, entire). Further, over
the last decade, in an 8-State area roughly equivalent to the Rocky
Mountain sage-grouse range, the majority of landowners completed their
agreements and continued practices after the agreements were completed
(Johnson, USFWS, 2015, pers. comm.). Habitat loss and degradation were
identified as threats to the species in 2010; through efforts such as
these, sage-grouse habitat remains available to the species. Given the
ongoing fidelity these efforts to conserve sage-grouse and its habitat,
along with our previous experiences with other species, we conclude
that there is sufficient certainty that existing CCAAs will continue to
be implemented into the future.
Secretarial Order 3336
On January 5, 2015, the Secretary of the Interior signed
Secretarial Order 3336, Rangeland Fire Prevention, Management, and
Restoration (Secretarial Order), that provides guidance on wildfire
management in the sagebrush ecosystem (Department of the Interior (DOI)
2015b, entire). The Secretarial Order places a priority on
``protecting, conserving, and restoring the health of the sagebrush
ecosystem and, in particular, sage-grouse habitat, while maintaining
safe and efficient operations,'' and allocates fire resources and
assets associated with wildfire to reflect that priority. The
Secretarial
[[Page 59887]]
Order established a Rangeland Fire Task Force (Task Force) to prepare
and oversee an Implementation Plan for accomplishing the objectives of
the Secretarial Order. The Task Force completed an ``Initial Report''
outlining actions that can be undertaken during the 2015 western
wildfire season and that plan is being implemented (DOI 2015c, entire).
The Task Force also prepared a ``Final Report'' that identifies long-
term activities, beyond the 2015 fire season, that can be implemented
to further address the effects of wildfire in the Great Basin (DOI
2015d, entire). A full discussion of the Secretarial Order, the Initial
and Final Reports, and how they address the effects from wildfire and
invasive species is provided below (see Wildfire and Invasive Plants).
Summary of New Information Since 2010
Since 2010, there have been several major changes in the regulatory
mechanisms that minimize impacts to sage-grouse and their habitats.
Foremost among these are the adoption of new Federal Plans specifically
tailored to conserving sage-grouse over more than half of its occupied
range. These Federal Plans now include substantial provisions for
addressing activities that occur in sage-grouse habitats and affect the
species, including those threats identified in 2010 as having
inadequate regulatory measures. Aside from addressing specific
activities, the Federal Plans include provisions for monitoring,
adaptive management, mitigation, and limitations on anthropogenic
disturbance to reduce impacts authorized in sage-grouse habitats. The
Federal Plans are the foundation of land-use management on BLM and USFS
managed lands. We are confident that these Federal Plans will be
implemented and that the new changes, which are based on the scientific
literature, will effectively reduce and minimize impacts to the species
and its habitat.
In addition to the Federal Plans, the BLM and USFS have provided
new policy guidance and management direction for the management of
wildfire and invasive plant in the sagebrush ecosystems. The
Secretarial Order establishes new, overarching policy direction for DOI
and its wildfire prevention and suppression efforts by prioritizing
``protecting, conserving, and restoring the health of the sagebrush
ecosystem and, in particular, sage-grouse habitat, while maintaining
safe and efficient operations.'' The Secretarial Order also requires
that DOI allocate its wildfire resources and assets in ways that
fulfill the priority of protecting, conserving, and restoring the
health of the sagebrush ecosystem. The Secretarial Order aims to reduce
the size, severity, and cost of suppressing wildfire in sage-grouse
habitats by reducing the spread of invasive plants and prioritizing
resources to ensure that suppression efforts are effective.
Further, 10 of the 11 States within the occupied range of the sage-
grouse have revised and adopted sage-grouse conservation plans. State
sage-grouse conservation plans in Wyoming, Montana, and Oregon contain
regulatory mechanisms that minimize impacts to the species and its
habitat. Most notably, the Wyoming Plan has been in place since 2008
and has effectively minimized impacts within core habitats, protecting
the highest density areas for the species within the State. The Montana
and Oregon State Plans use proven conservation measures including
disturbance caps, density restrictions, and lek buffers to minimize
disturbance to important habitats. In combination, the Federal and
three State plans cover 90 percent of the sage-grouse breeding habitat
where they provide regulatory mechanisms that reduce potential adverse
effects to sage-grouse. These State and Federal Plans, together with
the private lands conservation provided by SGI and CCAAs, represent a
substantial increase in sage-grouse conservation since 2010. These
Plans and private land efforts provide conservation for sage-grouse now
and into the future and ensure that the most important habitats will
remain distributed across the landscape to support the populations
identified as critical to the long-term conservation of the species.
Summary of Information Pertaining to the Five Factors
Section 4 of the Act (16 U.S.C. 1533) and implementing regulations
(50 CFR 424) set forth procedures for adding species to the Federal
Lists of Endangered and Threatened Wildlife and Plants. The Act defines
an ``endangered'' species as ``any species which is in danger of
extinction throughout all or a significant portion of its range,'' and
a ``threatened'' species as one ``which is likely to become an
endangered species within the foreseeable future throughout all or a
significant portion of its range'' (16 U.S.C. 1532(6), (20)). Under
section 4(a)(1) of the Act, we may determine a species warrants listing
as endangered or threatened based on any of the following five factors:
(A) The present or threatened destruction, modification, or
curtailment of its habitat or range;
(B) Overutilization for commercial, recreational, scientific, or
educational purposes;
(C) Disease or predation;
(D) The inadequacy of existing regulatory mechanisms; or
(E) Other natural or manmade factors affecting its continued
existence.
In making this finding, we discuss below information regarding the
status and potential threats to the sage-grouse in relation to the five
statutory factors provided in section 4(a)(1) of the Act. Our
evaluation of potential threats is based on information provided in the
relevant petitions, information available in our files, and other
sources considered to be the best scientific and commercial information
available, including published and unpublished studies and reports. In
considering what factors might constitute threats to the species, we
must look beyond the mere exposure of the species to the factor to
determine whether the species responds to the factor in a way that
causes actual impacts to the species. If there is exposure to a factor,
but no response, or only a positive response, that factor is not a
threat. If there is exposure and the species responds negatively, the
factor may be a threat to the species and we then attempt to determine
if that factor rises to the level of a threat, meaning that it may
drive or contribute to the risk of extinction of the species such that
the species warrants listing as an endangered or threatened species as
those terms are defined by the Act. This does not necessarily require
empirical proof of a threat. The combination of exposure and some
corroborating evidence of how the species is likely impacted could
suffice. The mere identification of factors that could impact a species
negatively is not sufficient to compel a finding that listing is
warranted; we require evidence that the threats, either alone or when
combined, are significant, in that they act on the species to the point
that the species meets the definition of an ``endangered species'' or
``threatened species'' under the Act.
Habitat Fragmentation
In the 2010 finding, we determined that the greatest threat to the
species was habitat loss and fragmentation (Factor A) due to a variety
of causes, including but not limited to, energy development,
infrastructure, invasive species, and wildfire (75 FR 13910, March 23,
2010, p. 13986). Sagebrush habitats were becoming increasingly degraded
and fragmented due to the impacts of multiple threats, including direct
conversion, urbanization, infrastructure such as roads and power
[[Page 59888]]
lines built in support of several activities, wildfire and the change
in wildfire frequency, incursion of invasive plants, improper grazing,
and nonrenewable and renewable energy development. Many of these
threats were found to be exacerbated by the effects of climate change,
which could influence long-term habitat trends.
As noted in 2010, fundamental characteristics of sagebrush
landscapes have changed since Euro-American settlement (Knick and
Connelly 2011, p. 7). Very little of the extant sagebrush is
undisturbed, with up to 50 to 60 percent having altered understories or
having been lost to direct conversion (Knick et al. 2003, p. 612).
Conversion to cropland and other land uses has reduced the quantity of
area that is dominated by sagebrush land cover. The composition of
sagebrush communities has changed with the expansion of junipers and
Pinus spp. (pinyon) woodlands (Miller and Rose 1999, p. 556) and the
invasion of nonnative species such cheatgrass (West and Young 2000, p.
262). Habitat suitability has also been affected by the presence of
anthropogenic structures such as communication towers and power lines
(Connelly et al. 2000a, p. 974; Beck et al. 2006, p. 1070). Lastly, the
configuration of sagebrush mosaics across the species' range has
changed, resulting in the risk of increased population isolation,
exposure to predators in areas of edge habitat, and invasive plants
(Saunders et al. 1991, pp. 22-24; Gelbard and Belnap 2003, p. 424;
Knick and Connelly 2011, pp. 7-14).
The biology of sagebrush and the ecology of the sagebrush ecosystem
makes restoration of disturbed areas very difficult and processes to
restore sagebrush habitat are relatively unproven (Knick et al. 2003,
p. 620). Active restoration activities are often limited by financial
and logistical resources (Knick et al. 2003, p. 620; Miller et al.
2011, p. 147; Pyke 2011, p. 544) and may require decades or centuries
to be effective (Knick et al. 2003, p. 620). Meaningful restoration for
sage-grouse requires action on a landscape, watershed, or eco-regional
scale rather than individual, unconnected efforts (Knick et al. 2003,
p. 623; Wisdom et al. 2011, p. 469). Recently, investigations have
focused on ascertaining where and how sagebrush habitat restoration is
likely to be more effective (Pyke 2011, pp. 531-548; Miller et al.
2014, pp. 468-481; Chambers et al. 2014b, pp. 440-454). Because loss
and fragmentation of habitats due to invasives and wildfire is one of
the biggest impacts to sage-grouse, particularly in the Great Basin, it
is important that these investigations continue and that management
actions continue to focus on effective wildfire suppression and habitat
restoration.
Because of the challenges with sagebrush restoration, management
efforts in sagebrush ecosystems are usually focused on habitat
maintenance (Miller et al. 2011, p. 183; Wisdom et al. 2011, pp. 470,
472). This goal has primarily been achieved through the management of
activities that can result in habitat loss and fragmentations such as
non-renewable energy development, agricultural conversion, wildfire,
and invasive plants, consistent with the recommendations in the COT
Report (USFWS 2013, pp. 40-52). Each of the activities that can cause
habitat fragmentation will be discussed further below, as well as any
conservation efforts that have been implemented to address those
impacts.
Nonrenewable Energy Development
In 2010, we evaluated the effect of nonrenewable energy development
on sage-grouse and concluded that the development and related
infrastructure were substantial contributors to habitat loss and
fragmentation in the past, and that it would continue into the future,
particularly in the Rocky Mountain portion of the species' range. We
also found that regulations addressing nonrenewable energy development
were inadequate at that time to address this threat. It was the lack of
regulatory mechanisms that led us to conclude this nonrenewable energy
development would continue at rates similar to or greater than
historical rates of development. The 2010 finding concluded that
habitat fragmentation, caused in part by nonrenewable energy
development, and inadequate regulatory mechanisms were significant
threats to the species, then and into the foreseeable future, such that
listing was warranted under the Act (75 FR 13910, March 23, 2010, pp.
13986-13988).
Nonrenewable energy development includes the exploration,
construction, and drilling of wells and installation of supporting
infrastructure needed to extract and transport oil, natural gas, coal,
coal-bed natural gas, coal-bed methane, and other types of gas.
Nonrenewable energy development begins with exploratory surveys and the
construction of access roads and well pads, followed by drilling,
extracting, and transporting the energy reserves along roads and
pipelines. Additional infrastructure needed for nonrenewable energy
development often includes compressor stations, pumping stations,
electrical generators, and power lines (Connelly et al. 2004, p. 7-39;
BLM 2007, pp. 2-110).
Nonrenewable energy development has occurred in sage-grouse
habitats since the late 1800s (Connelly et al. 2004, p. 7-28), with
wells historically concentrated in MZs I, II, VII, and the eastern
portion of MZ III (IHS Incorporated 2014, entire). Specifically,
nonrenewable energy development is concentrated above four geologic
basins across the sage-grouse range: The Powder River Basin (MZ I); the
Williston Basin (MZ I); the Southwestern Wyoming Basin (MZ II); and the
Uinta-Piceance Basin (MZs II, III, and VII). These four basins overlap
with the highest density of sage-grouse, and the largest number of leks
in the Rocky Mountain portion of the occupied range (Doherty et al.
2015, entire). Approximately 10 percent of the species' overall
occupied range has been directly or indirectly affected by nonrenewable
energy development, with approximately 20 percent affected in MZ I, 20
percent affected in MZ II, and 29 percent affected in MZ VII (Knick et
al. 2011, p. 240). The existing development and infrastructure has
already affected the species distribution (Naugle et al. 2011, pp. 489-
491). Nonrenewable energy development is expected to continue in the
occupied range of the sage-grouse based on the estimates of available
energy reserves and projected trends in development rates (Copeland et
al. 2009, p. 5; Knick and Hanser 2011, p. 394; Wisdom et al. 2011, p.
467).
Nonrenewable energy development can remove and fragment sagebrush
habitats (Factor A). Well pads vary in size from 0.10 ha (0.25 ac) for
coal-bed natural gas wells to greater than 7 ha (17.3 ac) for deep gas
wells and multi-well pads (Connelly et al. 2004, p. 7-39; BLM 2007, pp.
2-123). Pads for compressor stations typically occupy 5 to 7 ha (12.4
to 17.3 ac) (Connelly et al. 2004, p. 7-39). However, where geology
permits the use of new horizontal and directional drilling
technologies, multiple wells can be placed on one pad, thereby reducing
the amount of surface disturbance associated with wells, roads, power
lines, and pipelines (Applegate and Owens 2014, p. 288).
The reduction and fragmentation of sagebrush habitats can decrease
sage-grouse abundance and reduce the distribution of sage-grouse across
the landscape (Knick et al., 2011, pp. 247-250; Leu and Hanser 2011, p.
270). Male sage-grouse may avoid leks if there are five or more wells
within 3.0 km (1.9 mi), and sage-grouse are less likely to occupy
habitats with wells spaced at 32 ha (80 ac) (Doherty et al. 2008, p.
193).
[[Page 59889]]
Well densities on Federal lands have typically ranged from 1 well per
16 ha to 32 ha (40 ac to 80 ac), although densities as high as 1 well
per 4 ha (10 ac) do occur (BLM 2006, pp. 2-5; Naugle et al. 2011, p.
497). Impacts from nonrenewable energy extend beyond the physical
footprints of wells and may include indirect effects such as the
physical and behavioral changes, increased mortality, and reduced
reproductive success (Lyon and Anderson 2003, p. 459; Walker et al.
2007a, p. 2651; Holloran et al. 2010, p. 70; Knick et al. 2011, p.
240).
Sage-grouse avoid habitats near non-renewable energy developments,
including important wintering habitats and leks (Dzialak et al. 2013,
p. 16; Smith et al. 2014, p. 15). Sage-grouse have lower nest
initiation and nest success rates near nonrenewable energy development
(Aldridge and Boyce 2007, p. 517; Webb et al. 2012, p. 9), and reduced
survival rates (Holloran et al. 2010, p. 70; Kirol 2012, p. 15). Due to
the strong habitat fidelity exhibited by adult sage-grouse, declining
population trends may take up to 10 years to detect following the onset
of nonrenewable energy development. (Doherty et al. 2010a, p. 5; Harju
et al. 2010, pp. 441-445; Taylor et al. 2012a, p. 8; Gregory and Beck
2014, p. e97132). This delay poses challenges to detecting population-
level impacts resulting from development, and may prevent timely
implementation of measures to eliminate, reduce, or mitigate those
impacts. As a single conservation tool, mitigation measures (such as
habitat restoration and seasonal or timing restrictions) to reduce
impacts may not be sufficient to prevent sage-grouse declines due to
nonrenewable energy development (Walker et al. 2007a, p. 2651; Doherty
et al. 2008, p. 192; Harju et al. 2010, p. 445), as the associated
infrastructure persists on the landscape for several generations of
sage-grouse. However, as part of a larger tool set that includes
avoidance and minimization, mitigation can serve as a helpful
conservation measure (USFWS 2014c).
Nonrenewable energy resources are the largest source of energy
worldwide, and demand for these resources could increase by up to 1.3
percent annually in the United States and 50 percent worldwide by the
year 2030 (National Petroleum Council 2007, p. 46; Naugle et al. 2011,
p. 490). Nonrenewable energy resources will likely be in demand and
used in the United States through the year 2030, although energy forms
and extraction techniques may change in the future (EIA 2009, entire).
Market conditions and extraction technologies influence the rates of
nonrenewable energy development in North America (Applegate and Owens
2014, p. 287); the Energy Policy and Conservation Act (Pub. L. 109-58)
and its amendments mandate that the United States increase its domestic
energy development. Therefore, nonrenewable energy development is
likely to continue throughout the sage-grouse range into the future,
although its form and extent across the landscape may change.
In 2010, we assessed impacts to sage-grouse and their habitat based
on the portion of occupied range where a nonrenewable energy project
was occurring and where there was increased potential for future
development (75 FR March 1310, March 23, 2010, pp. 13942-13948). This
approach was based on the best available GIS data at that time but may
have overestimated some effects, because we had less precise
information regarding areas of high oil and gas development potential
and we measured impacts against all lands within the occupied range.
For this status review, we used peer-reviewed and published
methodologies (Copeland et al. 2009, entire) to model the probability
of future oil and gas development impacting sage-grouse. The model
focused on assessing the risk of nonrenewable energy in MZs I and II,
the two areas with the highest potential for future nonrenewable energy
development (Figure 2) (Juliusson and Doherty 2015). Although
nonrenewable energy development potential exists and will continue in
the Uinta-Piceance Basin (MZ VII), we did not apply the model to MZ VII
because the relative proportion of potential development was low, even
under the highest development scenario. The model used geological
information about potentially available oil and gas resources to map
areas of likely future development (Juliusson and Doherty 2015). We
also used Oil & Gas Resource Assessments developed by the USGS to
incorporate future maximum potential development scenarios into the
analysis (Juliusson and Doherty 2015). The analysis quantified
potential effects to sage-grouse by calculating the percent of the
Population Index and breeding habitat distribution potentially exposed
to future nonrenewable energy development based on the availability of
oil and gas resources. The potential effects from nonrenewable energy
development were assessed with and without regulatory mechanisms
contained in the Federal Plans, the Wyoming Plan, and the Montana Plan
(see Conservation Efforts, below). The estimate of potential non-
renewable energy effects without conservation planning efforts is
roughly equivalent to what was evaluated in 2010.
Our analysis indicates that the Federal Plans, the Wyoming Plan,
and the Montana Plan are reducing the exposure of the sage-grouse to
nonrenewable energy, as measured by the portions of the Population
Index and breeding habitat, in MZs I and II, the two MZs at greatest
risk of future nonrenewable energy development (Table 5). Without the
regulatory mechanisms in MZ I, 28 percent of the Population Index and
21 percent of the breeding habitat could be affected by nonrenewable
energy development. Without regulatory mechanisms in MZ II, 27 percent
of the Population Index and 25 percent of the breeding habitat could be
affected (Table 5). However, with the regulatory mechanisms provided by
the State and Federal plans, the risk of nonrenewable energy
development decreases. With regulatory mechanisms, 17 percent of the
Population Index and 14 percent of the breeding habitat could be
exposed to nonrenewable energy development in MZ I, and 8 percent of
the Population Index and 9 percent of the breeding habitat could be
exposed to nonrenewable energy development in MZ II. Our analysis shows
that the State and Federal regulatory mechanisms reduce the risk of
nonrenewable energy exposure to the Population Index and breeding
habitat by more than 35 percent in MZ I and more than 60 percent in MZ
II.
[[Page 59890]]
Table 5--Potential Exposure to Sage-Grouse Populations and Breeding Habitat From Nonrenewable Energy Development
in MZs I and II, With and Without the Regulatory Mechanisms, at the Highest Development Scenario
----------------------------------------------------------------------------------------------------------------
Without regulatory mechanisms With regulatory mechanisms
-------------------------------------------------------------------------------
Management zone % of the % of the
population index % of the breeding population index % of the breeding
exposed habitat exposed exposed habitat exposed
----------------------------------------------------------------------------------------------------------------
I............................... 28 21 17 14
II.............................. 27 25 8 9
----------------------------------------------------------------------------------------------------------------
To summarize, our analysis quantifies that without regulation a
high proportion of the Population Index and breeding habitat in MZs I
and II could be exposed to and potentially negatively affected by
nonrenewable energy development. However, with the regulatory
mechanisms enacted since 2010, the potential risk from nonrenewable
energy development is substantially reduced in MZs I and II (Table 5).
Future impacts to sage-grouse from new development could vary based on
other factors, such as economic markets, technologies, densities,
proximity to existing development, and the location of new development;
however, our results show that the Federal and State regulatory
mechanisms in MZs I and II reduce habitat loss and fragmentation due to
nonrenewable energy development. The next section will discuss these
conservation efforts, including those regulatory mechanisms designed to
address the effects of nonrenewable energy development and how they
ameliorate this potential threat.
Conservation Efforts
Since 2010, State and Federal agencies have worked collaboratively
to develop regulatory mechanisms, that is, legally binding and
enforceable sage-grouse conservation measures, as well as other
nonregulatory conservation efforts, to reduce or eliminate the
potential threat of new nonrenewable energy development to sage-grouse
and its habitat. Those efforts are discussed in detail below.
State Plans--Three States where nonrenewable energy development has
historically been concentrated have implemented regulatory mechanisms
to address this potential threat. As described below, Wyoming and
Montana Plans provide regulatory mechanisms to address habitat loss,
habitat fragmentation, and disturbance associated with nonrenewable-
energy development on applicable lands in their States. In addition,
the Utah Executive Order contains a regulatory mechanism for potential
nonrenewable energy development that is discussed below.
The Wyoming Plan provides regulatory mechanisms to reduce impacts
associated with energy development on all lands within Core Areas. The
Wyoming Plan features development stipulations to guide and regulate
development within the Core Population Areas to avoid as much as
possible, but, if avoidance is not possible, to minimize and mitigate,
impacts to sage-grouse and its habitat (See Regulatory Mechanisms
section below; Wyoming E.O. 2015-4, entire). Specific measures include
controlled surface use, density of development restrictions, seasonal
and noise restrictions, and lek buffers. Since implementation of the
plan began in 2008, the number of new nonrenewable energy wells in
sage-grouse habitats declined by 80 percent and permits for potential
new development of single wells has declined by 65 percent (USFWS
2014b). At the same time, applications for directional and horizontal
drilling permits, which congregate disturbance from multiple wells into
one area, increased by 66 and 65 percent respectively, representing a
decrease in sage-grouse habitat lost to nonrenewable energy development
(USFWS 2014b). The BLM analyzed existing lease information and found
that only 14 percent of PHMA in Wyoming is already leased (Carmen, BLM,
2015, pers. com.). The Wyoming Plan recognizes valid existing rights.
``Activities existing or permitted in Core Populations Areas prior to
August 1, 2008, will not be required to be managed under Core
Population Area Stipulations'' (Wyoming E.O. 2015-4, p. 4). Our risk
analysis described above confirms that the Wyoming Plan, together with
the Federal Plans, reduces the potential exposure of nonrenewable
energy development to the Population Index by more than 35 percent in
MZ I and 60 percent in MZ II (Table 5) where nonrenewable energy
development has historically been concentrated. Results were similar
for breeding habitat. Risk of exposure, however, is a measure of areas
where regulatory mechanisms would allow development and does not equate
to a forecast of where actual impacts will occur; actual energy
development and potential impacts are likely to be much lower than the
risk analysis. While some development will occur in the future, the
Wyoming Plan directs projects to areas that will avoid impacts,
includes stipulations to minimize indirect effects, and if necessary,
requires mitigation to benefit the species.
The Montana Plan also provides regulatory mechanisms very similar
to those described above for Wyoming that reduce impacts from
nonrenewable-energy development. Montana's State plan includes
controlled surface use, restrictions on density of development,
seasonal and noise restrictions, and lek buffers. Similar to the
Wyoming Plan, it is designed to reduce impacts associated with energy
development in Core Areas on State lands and private lands where a
State authorization is required (Montana E.O. 10-2014, entire; see
Conservation Efforts section above). The Montana Plan includes a
controlled surface use, density of development restrictions, seasonal
and noise restrictions, and lek buffers.
The Utah Executive Order requires that the Utah Division of Oil Gas
and Mining coordinate with the Utah Division of Wildlife Resources
prior to issuing energy development permits. Further, the Plan directs
the Utah Division of Oil, Gas, and Mining to implement recommendations
provided during that coordination that require avoidance and
minimization measures on State and private lands consistent with the
conservation plan. These measures are subject to the statutory
requirements to protect rights on private property and avoid waste of
the mineral resource.
To summarize, since the 2010 finding, States have undertaken
considerable effort to reduce the impact of nonrenewable energy
development on sage-grouse and efforts are consistent with the
recommendations in the COT Report (USFWS 2013, pp. 43-44). State Plans
in Wyoming and Montana provide regulatory mechanisms that direct
[[Page 59891]]
development out of Core Areas and minimize indirect effects,
effectively reducing the risk of habitat loss and fragmentation in MZs
I and II. In addition, the Utah Executive Order contains a regulatory
mechanism that requires consultation with the State Division of
Wildlife Resources and implementation of its recommendations to avoid
and minimize sage-grouse impacts. The State Plans work together with
the Federal Plans, as discussed below, to reduce nonrenewable energy
effects to sage-grouse habitat across the range, and particularly in
MZs I and II, where the potential for development is the greatest.
Federal Plans--Since 2010, BLM and USFS have completed plan
amendments or revisions conserving sage-grouse on more than half its
occupied range. Approximately 80 percent of the BLM and USFS lands with
high to medium potential for nonrenewable energy development are
located outside federally managed PHMAs (Quamen, BLM, 2015, pers.
comm.). The Federal Plans in Wyoming adopt the Wyoming Plan, which, as
described in the Regulatory Mechanisms section above, reduces impacts
to sage-grouse from nonrenewable energy development. The Federal Plans
include NSO restrictions in 14 million ha (35 million ac) of PHMA, with
either no or very limited waivers or modifications. Exceptions to this
restriction could occur only if it is determined that the project would
not affect sage-grouse or would be beneficial compared to other
options. The Federal Plans prioritize the future leasing and
development of nonrenewable-energy resources outside of sage-grouse
habitats. The plans require disturbance caps, surface occupancy
restrictions, seasonal restrictions, and lek buffers to effectively
reduce habitat loss, habitat fragmentation, and disturbance to sage-
grouse from nonrenewable energy development. Calculation of the
percentage of disturbed surface under the disturbance caps incorporates
both existing and new authorized disturbances to limit habitat loss and
fragmentation from new nonrenewable energy development (See Sagebrush
Landscape Conservation Planning above).
The Federal Plans recognize valid existing subsurface rights to
nonrenewable energy resources, but still reduce impacts to sage-grouse
by requiring the agencies to work with lessees, operators, and project
proponents to follow an avoidance, minimization, and mitigation
approach subject to applicable laws (30 U.S.C. 226(p) and 43 CFR
3162.3). The BLM estimates that approximately 10 percent of all habitat
is currently leased rangewide (Carmen, BLM, 2015, pers. comm.).
According to BLM's analysis, varying proportions of PHMA are leased
across the range of the species: 20 percent in North Dakota; 17 percent
in Colorado; 14 percent in Wyoming; 4 percent in Utah; and 2 percent in
Montana (Carmen, BLM, 2015, pers. comm.). The Federal Plans provide
coordinated monitoring strategies of disturbance caps. In response to
monitoring, development allowed under the Federal Plans may be adjusted
based on adaptive management criteria to provide an immediate,
corrective response to any identified triggers for population or
habitat declines. While the development of some valid existing rights
may continue, these provisions provide a backstop for other disturbance
if adaptive management triggers are exceeded.
In summary, the Federal and three State Plans include closure or
NSO restrictions for all PHMAs (except in Wyoming), and limit
exceptions to instances where the activity will have no direct,
indirect, or cumulative effect on sage-grouse or sage-grouse habitats,
or is an alternative action for activities on a nearby parcel and would
provide a clear conservation gain to sage-grouse. In GHMAs, Federal
Plans dictate that project proponents avoid, minimize, and mitigate
impacts from nonrenewable energy development (see Sagebrush Landscape
Conservation Planning above). The Federal Plans are also consistent
with the recommendations in the COT Report (USFWS 2013, pp. 43-44).
Together, these measures reduce effects from nonrenewable energy
development on approximately 90 percent of the breeding habitat across
the range.
Nonrenewable Energy Summary
In the 2010 Finding, we determined that nonrenewable development
was a threat to sage-grouse due to the habitat loss and fragmentation
it caused. Current information indicates that the global demand for
nonrenewable energy resources will continue and will likely increase in
sage-grouse habitats through the year 2030. Nonrenewable energy
development can negatively affect sage-grouse individuals and
populations by reducing and fragmenting sagebrush habitats and by
disturbing individual sage-grouse through increased noise and
behavioral avoidance of infrastructure and human activity. Nonrenewable
energy development could also act cumulatively with other potential
threats to increase habitat loss and fragmentation caused by invasive
plants, and may increase predation or disease. Our analysis indicates
that regulatory mechanisms reduce the risk of nonrenewable energy
exposure to the Population Index and breeding habitat by more than 35
percent in MZ I and more than 60 percent in MZ II, the areas with the
greatest potential for nonrenewable energy development. State and
Federal Plans emphasize protection of the most important habitats from
habitat loss, habitat fragmentation, and disturbance, ensuring that
large, contiguous expanses of habitat will remain to support sage-
grouse populations. Rangewide, the Federal Plans, Wyoming Plan, and
Montana Plan reduce impacts from nonrenewable energy development on
approximately 90 percent of the modeled breeding habitat (see Sagebrush
Landscape Conservation Planning for a detailed discussion of
conservation measure implementation and effectiveness).
Infrastructure
In 2010, we evaluated the effect of infrastructure (including
roads, railroads, power lines, communication towers, and fences) on
sage-grouse and concluded that it was a substantial contributor to
habitat fragmentation throughout the species' range and that
fragmentation from this source would increase in the future. We also
found that infrastructure causes direct mortality from collisions and
provides perches for predators. We further found that the regulations
governing the location and installation of infrastructure were
inadequate to address these threats. The 2010 finding concluded that
habitat fragmentation, caused in part by infrastructure, and inadequate
regulatory mechanisms to address the negative effects of infrastructure
were significant threats to the species and likely to continue or
increase into the future such that listing was warranted under the Act
(75 FR 13910, March 23, 2010, pp. 13986-13988).
The increasing expansion of human settlement into the western
United States has led to an increase in demand for natural resources
and the necessary infrastructure to support human development.
Development of roads, railroads, power lines, communication towers, and
fences can result in habitat loss and fragmentation, and can cause
sage-grouse habitat avoidance. These types of infrastructure can also
provide sources for the introduction and propagation of invasive
plants, increase fire risk, and increase concentrations of predators.
The physical footprint of existing infrastructure has directly
impacted
[[Page 59892]]
approximately 218,535 ha (540,013 ac) of breeding habitat rangewide
(Factor A) (Table 6). In addition, infrastructure can influence a
larger ecological footprint by negatively affecting sage-grouse use of
otherwise suitable habitats through indirect effects from noise
disturbance, increased perches for predators, and pathways for invasive
species (Manier et al. 2013, p. 31; Blickley and Patricelli 2012, p.
26). For infrastructure that has been in place for a number of years,
these impacts have likely already been realized. The greatest impact
from existing infrastructure has occurred in the Columbia Basin (MZ VI)
where approximately 2.9 percent of sage-grouse breeding habitat has
been affected. Current infrastructure associated with power lines
accounts for the greatest direct disturbance (117,004 ha; 289,125 ac)
across the range. Fences occur across the landscape; however, the
amount of fencing is unknown (75 FR 13910, March 23, 2010, p. 13929).
Table 6--Sage-Grouse Breeding Habitat Directly Impacted by Existing Infrastructure
--------------------------------------------------------------------------------------------------------------------------------------------------------
Management zone
-----------------------------------------------------------------------------------------------
I II III IV V VI VII Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Roads \1\........................ ha................... 18,344 28,798 17,604 21,210 7,289 4,871 601 98,717
ac................... 45,329 71,162 43,501 52,411 18,011 12,036 1,485 243,935
%.................... (0.4%) (0.6%) (0.5%) (0.4%) (0.5%) (1.1%) (0.9%) (0.5%)
Railroads........................ ha................... 131 278 115 149 .......... 8 .......... 681
ac................... 324 686 284 369 .......... 20 .......... 1,683
%.................... (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%)
Power lines \2\.................. ha................... 17,171 37,656 18,455 28,104 7,670 7,950 .......... 117,005
ac................... 42,431 93,049 45,603 69,447 18,952 19,644 .......... 289,125
%.................... (0.41%) (0.78%) (0.54%) (0.60%) (0.55%) (1.78%) (<0.1%) (0.6%)
Vertical Towers \3\.............. ha................... 429 756 404 442 26 68 8 2,133
ac................... 1,061 1,867 998 1,091 64 168 21 5,270
%.................... (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%) (<0.1%)
Rangewide Totals................. ha................... 36,075 67,487 36,578 49,905 14,984 12,897 610 218,536
ac................... 89,144 166,764 90,386 123,318 37,026 31,868 1,507 540,013
%.................... (0.9%) (1.4%) (1.1%) (1.1%) (1.1%) (2.9%) (0.9%) (1.2%)
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Includes interstates, State and Federal highways, and secondary roads.
\2\ Includes existing, large (>115 kV) transmission lines. Does not include distribution lines.
\3\ Includes meteorological towers, communication towers, and wind turbines.
The primary impact of infrastructure is habitat loss and
fragmentation (Factor A). Other impacts associated with infrastructure
are direct mortality from strikes (Beck et al. 2006, p. 1075), spread
of invasives (Connelly et al. 2004, p. 7-25), wildfire ignition
(Havlina et al. 2015, p. 2), and increased predator occurrence (Manier
et al.2013, p. 31; Howe et al. 2014, p. 43). Additionally, sage-grouse
may avoid infrastructure because of noise or visual disturbance
(Blickley and Patricelli 2012, p. 26). However, fences may be
beneficial if used to protect areas used by sage-grouse (USFWS 2013, p.
52), such as fencing livestock and free-roaming equids out of mesic
areas used as late brood-rearing habitat. The best available
information does not forecast where or how much additional
infrastructure could be installed across the species' range. However,
as discussed in the next section, regulatory mechanisms provided by the
Federal and State Plans will exclude or minimize new infrastructure in
approximately 90 percent of sage-grouse breeding habitats.
Conservation Efforts
Since 2010, a number of landscape-scale efforts have been
undertaken to reduce impacts from existing and future infrastructure to
sage-grouse across the range that are consistent with the
recommendations in the COT Report (USFWS 2013, pp. 51-52). Those
efforts include Federal Plan amendments, State Plans, SGI projects, and
CCAs.
Federal Plans--The Federal Plans limit new infrastructure primarily
through land use allocations, lek buffers, and disturbance caps (BLM
and USFS 2015, entire). In PHMA, these measures are designed to avoid
or minimize infrastructure development, with limited exceptions for new
ROWs. Any exceptions must include the explicit rationale that
biological impacts to sage-grouse are being avoided. Existing
designated corridors for future major transmission lines and pipelines
remain open. Any impacts from new infrastructure require mitigation and
are counted toward the 3 percent disturbance cap, except in Wyoming and
Montana where a 5 percent cap exists. The Federal Plans also include
seasonal timing restrictions, noise restrictions, buffer distances from
leks, and required design features to minimize infrastructure impacts
on sage-grouse. Further, in response to monitoring, development
allowable under the Federal Plans may be adjusted based on adaptive
management criteria to provide an immediate, corrective response to any
triggers for population or habitat declines. These provisions provide a
backstop to prevent additional disturbance. As a result of these
measures, approximately 14 million ha (35 million ac) of PHMA are
protected from ROWs. Based on past planning processes, we expect the
measures to be implemented for at least the next 20 to 30 years. For
additional details about the implementation and effectiveness of
Federal Plans, see Federal Plans section, above.
State Plans--State Plans in Wyoming, Montana, and Oregon contain
regulatory measures to minimize impacts from infrastructure on State
lands and, in some instances, on private lands. The Wyoming Plan
imposes the following restrictions on all lands in Wyoming: Structure-
density limits, timing stipulations, buffers, habitat-disturbance caps,
and project-specific reviews for any project subject to State
permitting requirements permitted after August 1, 2008, on all lands in
Wyoming (Wyoming E.O. 2015-4, entire). Oregon's Plan regulations
require avoidance, minimization, and compensatory mitigation actions
for development actions in sage-grouse habitat on State and private
land and, in conjunction with BLM's Federal Plan, cap the amount of
disturbance on sage-grouse core habitat to 3 percent (Oregon OAR 635-
140-0025, entire; and Oregon OAR 660-023-0115, entire), while the
[[Page 59893]]
Wyoming and Montana Plans cap the amount of disturbance on sage-grouse
core habitat to 5 percent (Wyoming E.O. 2015-4, p. 6; Montana E.O. 10-
2014, p. 14). For additional details about the implementation and
effectiveness of State plans, see the Wyoming State and Federal Plans
and Montana and Oregon Conservation Efforts sections, above.
Sage Grouse Initiative--Marking fences with permanent flagging
improves their visibility and reduces fence collisions and was
recommended by the COT Report (USFWS 2013, p. 52). The Sage Grouse
Initiative has worked with ranchers to implement voluntary conservation
projects in sage-grouse habitat, including the marking of fences. To
date, NRCS has marked or removed 563 km (350 mi) of high-risk fence to
reduce collisions (NRCS 2015a, p. 6). Conservative estimates indicate
that fence-marking prevents 2,600 collisions annually (NRCS 2015a, p.
22). Another study found that marking fences reduced collisions by 83
percent over unmarked fences in Idaho during the breeding season
(Stevens et al. 2012, p. 1). Fence-marking is effective at reducing
collisions, but it is unlikely to eradicate collisions completely
(Stevens et al. 2012, p. 1), and further information is needed to make
population-level inferences regarding the impact of reduced collisions
(Stevens et al. 2013, p. 413).
Candidate Conservation Agreements--Non-Federal lands currently
enrolled in CCAAs have restrictions on building infrastructure within
sage-grouse habitat, require consolidation of existing infrastructure
when feasible, and require relocating or marking existing fences.
Rangewide, approximately 745,000 ha (1.8 million ac) of private lands
have landowner commitments in the programmatic CCAAs in Oregon and
Wyoming. Enrollment of these areas in the CCAAs ensures that no
infrastructure will be constructed on those properties in a way that
would adversely impact sage-grouse and encourages the modification or
management of existing infrastructure to reduce potential adverse
effects.
Infrastructure Summary
The potential threat of new infrastructure has changed
substantially since the last status review. In 2010, we found habitat
fragmentation, due in part to infrastructure, to be a threat to the
species, and regulatory mechanisms were not sufficient to address that
threat into the future. Since then, regulatory mechanisms provided by
Federal Plans reduce potential future infrastructure on more than half
the species' range by eliminating or capping new development in
important sagebrush habitat and by implementing project design features
to minimize impacts (e.g., buffers, noise restrictions, etc.). State
Plans in Wyoming, Montana, and Oregon provide similar protections on
State and private lands. These protections are most important in
Wyoming, where historically infrastructure impacts have been the
highest. Further, considerable effort has been undertaken by SGI and
private landowners to further reduce impacts from infrastructure, and
in particular, existing structures such as fencing. Where existing
infrastructure occurs, some localized impacts are likely to continue;
however, the Federal and State Plans include measures to avoid placing
new infrastructure in the most important habitats for the species,
thereby reducing the future risk of infrastructure development in those
areas. Together, the Federal Plans and Wyoming, Montana, and Oregon
State Plans reduce infrastructure impacts to the areas identified as
PHMAs and GHMAs, which encompass approximately 90 percent of the
modeled breeding habitat across the species' range (see Sagebrush
Landscape Conservation Planning for a detailed discussion of
conservation measure implementation and effectiveness).
Agricultural Conversion
In the 2010 finding, we concluded that agricultural conversion of
sage-grouse habitat was one of the primary causes of habitat loss and
fragmentation (75 FR 13910, March 23, pp. 13924-13926). Agricultural
conversion describes the removal of sagebrush rangelands to create
tilled agricultural crops or re-seeded exotic grass pastures (Schroeder
and Vander Haegen 2011, p. 519; Wisdom et al. 2011, p. 462; USFWS 2013,
p. 48). By converting sagebrush habitats to cultivated croplands and
pastures, agricultural conversion can reduce and fragment sage-grouse
habitats (Factor A) (Connelly et al. 2004, p. 7-203; Davies et al.
2011, p. 2575; Wisdom et al. 2011, p. 462; Knick et al. 2013, p. 1547).
Since 2010, new information about potential future risk of agricultural
conversion has changed our conclusion about this impact, as discussed
below.
In the past, approximately 11 percent of the sage-grouse's
historical range was converted to agriculture, with 32 percent of the
entire Columbia Basin (MZ VI) and 19 percent of the entire Great Plains
(MZ I) converted to agriculture (Knick et al. 2011, pp. 208-209).
Sagebrush habitats with deep, fertile soils and abundant precipitation
were more likely to be converted to agriculture (Connelly et al. 2004,
p. 1-1; Davies et al. 2011, p. 2575). The loss of these productive
sagebrush habitats to agriculture displaced some sage-grouse into less
productive sagebrush habitats (Manier et al. 2013, p. 1). In the rest
of the historical range, varied topography, soil types, and drier
climates limited the conversion of sage-grouse habitats to agriculture
(Knick et al. 2011, p. 208). As a result, only 10 percent of the Snake
River Plain (MZ IV) and less than 5 percent of the total area of each
remaining MZ were converted to agriculture (Connelly et al. 2004, p. 5-
55; Knick et al. 2011, p. 209). Our previous 2010 Finding summarized
specific historical losses of sage-grouse habitats from agricultural
conversion (75 FR 13910, March 23, pp. 13924-13925).
By reducing and fragmenting sage-grouse habitats, agricultural
conversion may reduce sage-grouse populations (Smith et al. 2005, p.
314; Walker et al. 2007a, p. 2650; Tack 2009, p. iii; Johnson et al.
2011, p. 407; Knick et al. 2011, p. 208). Although sage-grouse will
forage on some crops, such as alfalfa (Schroeder et al. 1999, p. 4),
they typically will not nest or rear broods in cultivated croplands
(Holloran et al. 2005, p. 648; Aldridge and Boyce 2007, pp. 508, 523).
Agricultural conversion can also reduce the connectivity of habitats
and limit the movement of sage-grouse between populations and seasonal
habitats (Schroeder and Vander Haegen 2006, pp. 7-8; Knick et al. 2011,
p. 211). Agricultural conversion may also expose sage-grouse to
indirect effects, such as increased predation, exposure to pesticides,
and the drying and loss of riparian habitats when water is diverted for
irrigation (Knick et al. 2011, pp. 208-209). Based on the foraging
distances of human-associated predators hunting near croplands and
urban areas, agricultural conversion could indirectly influence
approximately 49 percent of sagebrush habitats rangewide (Connelly et
al. 2004, pp. 1-1 and 7-23; Manier et al. 2013, p. 30).
Although agricultural croplands and pasturelands do not provide
suitable habitat, sage-grouse may feed on irrigated croplands,
particularly during the late brood-rearing period when other native
plant foods have matured and dried (Connelly et al. 2004, pp. 4-1 and
4-10; Knick et al. 2011, p. 211). The type of crop and proximity to
adjacent sagebrush habitats influences whether sage-grouse will feed on
the irrigated croplands (Swensen et al. 1987, p. 128; Blus et al. 1989,
p. 1141; Connelly et al. 2004, p. 4-18). Sage-grouse generally do
[[Page 59894]]
not feed on dry, unirrigated fields that have fewer forbs and insects
than irrigated fields. Additionally, increased predation, exposure to
pesticides, WNv, and collisions with fences may outweigh any benefits
to sage-grouse provided by cultivated cropland and pastures (Blus et
al. 1989, pp. 1141-1142; Braun 2006, p. 11; Walker 2008, p. 184,
Holloran et al. 2005, p. 648, Aldridge and Boyce 2007, p. 508; Coates
et al., in press).
Rates of agricultural conversion likely slowed and will continue to
slow because the most productive sagebrush habitats have already been
converted to croplands or pasturelands (Baker et al. 1976, p. 167).
Since 1982, acres of new cropland within occupied sage-grouse range
have decreased in every State except South Dakota (NRCS 2013, pp. 63-
79), likely due to the decreasing suitability of the remaining habitats
for agriculture. However, economic incentives for biofuels and
technological advances in irrigation and cultivation could potentially
increase conversion rates in the future (Knick et al. 2011, p. 208). In
2010, we determined that agricultural conversion would continue to
affect sage-grouse in the future based on historical loss and
fragmentation of sage-grouse habitat from agricultural conversion.
To more precisely evaluate the potential risk to sage-grouse from
future agricultural conversion, we compared a new cropland suitability
model (Lipsey et al. 2015, entire) with the Population Index (Doherty
et al. 2015, entire). The cropland suitability model uses soil and
climate data to predict the probability that an area could be converted
to cropland (Lipsey et al. 2015, entire). The Population Index model
identifies important sage-grouse population centers (Doherty et al.
2015, entire). By comparing these two models, we quantified the percent
of the sage-grouse Population Index that overlaps with sagebrush
habitats in the MZ I that have a high potential to be converted to
agriculture in the future. Because the cropland suitability model was
only finalized for MZ I for reasons explained below, the results of
this exercise specifically apply only to MZ I, but can be used to
assess potential probabilities of conversion to agriculture rangewide.
The cropland suitability model was developed only for the Great
Plains (MZ I), and not for the Columbia Basin (MZ VI) or the Snake
River Plain (MZ IV), where agricultural conversion also occurred, due
to the limited availability of land cover data, the small size of the
Columbia Basin (MZ VI), and differences in the way sage-grouse use
agricultural fields between these three MZs. Additionally, more of the
Columbia Basin (MZ VI) has already been converted to cropland (Knick et
al. 2011, pp. 208-209) and the Great Plains (MZ I) has the highest
percentage (69 percent) of private lands (TABLE 2, above), so the
potential risk of agricultural conversion is greatest in the Great
Plains (MZ I). As a result, the cropland suitability model focused only
on the MZ with the greatest potential to be converted in the future, so
our overlay analysis with the sage-grouse breeding distribution model
could only be calculated in the Great Plains (MZ I). However, by
limiting the analysis to the MZ I, the MZ with the greater potential to
be converted, the result represents a worst-case scenario that is
informative for the rest of the range where future conversion is less
likely to occur. Additionally, it would be speculative to analyze
future technological agricultural advancements or economic incentives
that could potentially increase agricultural conversion on lower
quality soils.
Our comparison of the cropland risk model and the Population Index
model showed that the majority of the sage-grouse Population Index
overlaps with sagebrush habitats in MZ I that have a low probability of
being converted to agriculture (Lipsey et al. 2015, entire; USFWS
2015a). Specifically, 87 percent of the sage-grouse Population Index in
the MZ I occur in sagebrush habitats unlikely to be converted into
agriculture due to their soils, climate, and other factors that were
incorporated into the cropland suitability model. This analysis
confirms that the sage-grouse habitats in MZ I have already been
converted to agriculture and the remaining habitats important to sage-
grouse are less suitable for agriculture and less likely to be
converted in the future.
Although some sage-grouse in MZ I could be exposed to agricultural
conversion in the future, 87 percent of the Population Index are not
likely at risk from agricultural conversion. Although this result
contradicts other sources of information that postulated a greater risk
to sage-grouse from future agricultural conversion (RISCT 2012, p. 7;
USFWS 2013, pp. 16-29), this analysis quantitatively determined that
the risk of exposure to future agricultural conversion is low in MZ I.
Because the risk of conversion is greatest in MZ I, a portion of MZ IV
in the Snake River Plain in Idaho and the Columbia Basin in Washington
(MZ VI) would likely have lower percent overlap between sage-grouse
breeding populations and areas likely to be converted to agriculture.
With improved land cover datasets, the cropland suitability model could
be expanded to the other MZs to test this assumption. However, the
overlay analysis indicates that the potential for agricultural
conversion is low in the Great Plains (MZ I), and there is no
information to indicate that the risk to sage-grouse would be greater
in any other MZ.
Conservation Efforts
Since 2010, a number of conservation efforts have been implemented
to reduce the risk of new habitat loss due to agricultural conversion
or to address effects from historical agricultural conversion. These
include the NRCS efforts with private land owners and other State and
Federal Plans or programs. As discussed below, these conservation
efforts are relevant to the potential threat of agricultural
conversion.
Sage Grouse Initiative--In 2010, NRCS launched the SGI to reduce
potential threats facing sage-grouse on private lands (see Sage Grouse
Initiative, above, for a detailed discussion of this program).
Conservation measures used by the NRCS to reduce impacts to sage-grouse
from agricultural conversion include conservation easements, the Farm
Bill's Sodsaver provision, and the Conservation Reserve Program (CRP).
Conservation easements are voluntary agreements between landowners
and land trusts, the NRCS, or other organizations and agencies that
maintain the easement in private ownership to benefit natural
resources, often in perpetuity. The conservation easements carry
binding and enforceable restrictions on development and other
activities, and landowners may be reimbursed. Conservation easements
may permanently protect sagebrush habitat from ex-urban development or
agricultural conversion. The NRCS estimates that, since 2010,
approximately 183,013 ha (451,884 ac) have been protected by
conservation easements across the overall range of the sage-grouse
(NRCS 2015a, p. 6). Conservation easements effectively block the loss
and fragmentation of sage-grouse habitats by prohibiting ex-urban
development and agricultural conversion on the easement lands and were
recommended in the COT Report (USFWS 2013, pp. 48, 50). Approximately
79 percent of the conservation easements are located inside PACs, and
94 percent of the easements provide permanent protection against future
agricultural conversion and ex-urban development (NRCS 2015a, p. 8).
Although SGI easements address a variety of potential impacts to sage-
grouse, including
[[Page 59895]]
agricultural conversion, many of the easements that are already in
place are not currently located in sagebrush habitats that are at risk
of agricultural conversion, according to the new cropland suitability
and breeding distribution models (Lipsey et al. 2015, entire; USFWS
2015a). However, Montana's recently finalized Greater Sage-Grouse
Stewardship Act funds additional sage-grouse conservation that could be
used to secure new conservation easements in Montana (NRCS 2015a, p.
3), and with the new models, new easements could be better targeted to
conserve sage-grouse habitats that may be vulnerable to future
agricultural conversion in Montana. Expanding the cropland suitability
model into the Snake River Plain (MZ IV) and the Columbia Basin (MZ VI)
would also help target conservation easements to prevent future
agricultural conversion in those MZs.
The 2014 Farm Bill's Sodsaver provision also reduces habitat loss
and fragmentation from agricultural conversion in Montana, North
Dakota, and South Dakota (MZ I) (NRCS 2015a, p. 3). The Sodsaver
provision discourages agricultural producers from converting native
vegetation to annually tilled crops by reducing their insurance
subsidies and disaster assistance if they convert native habitats into
croplands (NRCS 2015a, p. 4). The NRCS reports that the Sodsaver
policy, in conjunction with proposed policies on State lands and
continued investments in conservation easements, reduces sage-grouse
population declines that would have occurred without these conservation
measures (NRCS 2015a, p. 1).
The voluntary Conservation Reserve Program (CRP) allows private
landowners to receive annual payments from USDA's Farm Service
Administration in exchange for establishing permanent vegetation on
idle or erodible lands that were previously used for growing crops.
Enrolled lands are set aside for 10 to 15 years and cannot be grazed or
used for other agricultural uses except under emergency drought
conditions. The enrollment of CRP lands can be detrimental to sage-
grouse when sagebrush rangelands are converted to marginal croplands,
and then converted into grasslands, not sagebrush habitats (USFWS 2013,
p. 48). However, some CRP lands can provide nesting, brood-rearing, and
wintering habitat for sage-grouse (Schroeder and Vander Haegen 2006, p.
32; Schroeder and Vander Haegen 2011, pp. 524-528). When agricultural
fields are returned to sage-grouse habitats, enrollment in the CRP
generally benefits sage-grouse, especially in the Columbia Basin (MZ
VI) and Great Plains (MZ I) where agricultural conversion historically
occurred (Knick et al. 2011, p. 208). However, enrollment in CRP
fluctuates with Federal funding and crop prices, and the long-term
effectiveness of the CRP to improve sage-grouse habitats is uncertain.
However, in Washington, lands have frequently remained enrolled long
enough for sagebrush to reestablish and sage-grouse to return to nest
(Schroeder and Vander Haegen 2011, p. 524).
Candidate Conservation Agreements--The CCAAs for sage-grouse in
Oregon and Wyoming include appropriate restrictions on agricultural
conversion, habitat fragmentation, and removing sagebrush that benefit
sage-grouse rangewide. Approximately 745,000 ha (1.8 million ac) of
private lands have landowner commitments in the programmatic CCAAs in
Oregon and Wyoming. Enrollment in these CCAAs ensures that these lands
are managed consistent with sage-grouse habitat objectives.
State Plans--The Wyoming and Montana Plans have regulatory
mechanisms that reduce agricultural conversion in these States on
applicable lands. The Wyoming Plan covers all land ownership types and
contains a 5 percent disturbance cap in Core Areas that includes
disturbance from agricultural conversion (Wyoming E.O. 2015-4,
Attachment A, p. 6). The Montana Plan allows the State to prohibit
agricultural conversion and the eradication of sagebrush on State Trust
Lands in core habitat, general habitat, and connectivity areas (Montana
10-2014, pp. 7-14). By regulating where and how much agricultural
conversion can occur within sage-grouse habitats, whether by regulating
the amount of disturbance or prohibiting habitat loss on State Trust
Lands, both the Wyoming Plan and Montana Plan provide effective
regulatory mechanisms to limit future agricultural conversion in their
State (see Regulatory Mechanisms, below).
Federal Plans--The Federal Plans were not designed to address
agricultural conversion, because Federal lands are not used or
converted for agricultural production (BLM and USFS 2015, entire).
However, transfer of Federal lands to private ownership is possible
and, once privately owned, could be converted to agriculture. The
Federal Plans require that any PHMA and GHMA be retained in Federal
ownership, thus preventing agricultural conversion (BLM and USFS 2015,
entire). Exceptions to this requirement could occur if the land
transaction would benefit sage-grouse or not cause any adverse effects.
By prohibiting their transfer to private ownership, the Federal Plans
reduce the risk of agricultural conversion on more than half the
occupied range of the species.
Agricultural Conversion Summary
In 2010, we identified agricultural conversion as one of three
factors contributing to the loss and fragmentation of sage-grouse
habitats, based on past rates of agricultural conversion that would
likely continue. Historically, agricultural conversion reduced and
fragmented sage-grouse habitats, resulting in population declines and
the loss of connectivity in some areas (Knick et al. 2011, p. 208).
Agricultural conversion may also expose sage-grouse to pesticides,
increased predation, and invasive plants. However, the sage-grouse
habitats most conducive to agriculture have already been converted to
crop and pasturelands, and the remaining habitats are generally not
suitable for agriculture and will likely not be converted. The new
cropland suitability model compared with the breeding distribution
model confirms that the sage-grouse habitats in the Great Plains (MZ I)
most likely to be converted to agriculture have already been converted
and that the remaining habitats have a low probability of conversion
because of soil types and climatic limitations. Approximately 87
percent of the important sage-grouse populations in MZ I occur in
habitats that have low probabilities of conversion to agriculture. The
potential for agricultural conversion is also low in the Columbia Basin
(MZ VI) and the Snake River Plain (MZ IV), where more sagebrush
habitats have already been converted. Additionally, acres of new
cropland decreased in every State except South Dakota over the last 30
years. Further, NRCS SGI conservation easements, the 2014 Farm Bill's
Sodsaver provision, USDA's CRP, the Wyoming and Montana Plans, and BLM
and USGS land-transfer prohibitions implemented since 2010 help reduce
habitat loss and fragmentation from agricultural conversion, consistent
with recommendations in the COT Report (USFWS 2013, p. 48-49).
Wildfire and Invasive Plants
In 2010, we evaluated the effect of wildfire on sage-grouse and
concluded that wildfire was a substantial contributor to habitat loss
and fragmentation, particularly in the Great Basin portion of the range
(MZs III, IV, V, and VI). The number and size of fires
[[Page 59896]]
has increased compared to historical fire regimes (Miller et al. 2011,
pp. 169, 176). A spatial analysis of areas burned reveals that
approximately 18 percent of sagebrush habitat across the occupied range
of sage-grouse burned between 1980 and 2007, including 27 percent of
the habitat in the Great Basin portion of the range. Further, increased
fire frequency is being driven by the expansion of nonnative invasive
annual grasses, primarily cheatgrass. In 2010, we analyzed invasive
annual grasses separately and concluded that it was a serious rangewide
threat (75 FR 13910, March 23, 2010, pp. 13937). The 2010 finding
concluded that habitat fragmentation, caused in part by fire, was a
threat to the species such that listing was warranted under the Act (75
FR 13910, March 23, 2010, pp. 13986-13988).
Since 2010, the rangeland fire management community has made
strides in addressing wildfire and its effects on habitat fragmentation
in sage-grouse range, as well as the interactions between wildfire and
invasive plants. Specifically, a suite of efforts such as the revised/
amended Federal Plans and the associated FIAT assessments; Secretarial
Order 3336; and other, related efforts represent a marked shift by the
fire management community toward a more holistic approach to
identifying, prioritizing, and managing impacts from wildfire in sage-
grouse habitat (with fire fighter and human health and safety remaining
as the highest priority in wildfire management). This marked shift is
particularly important given the degree to which invasives and wildfire
have the potential to reduce available habitat. Given the increased
management emphasis, we still expect to lose some habitat to fire, but
we now expect those losses to be less than would have otherwise
occurred.
This new approach includes numerous updates to wildfire management
strategies and planning tools. For example, the FIAT and Secretarial
Order established local guidance and set forth enhanced policies and
strategies for preventing and suppressing wildfire and for restoring
sagebrush landscapes impacted by fire across the Great Basin region.
Fuel treatments in sage-grouse habitats are now prioritized over
treatments in other areas (Murphy et al. 2013, p. 4). Additionally,
managers have developed protocols to ensure that plans are current and
include guidance for fire management in relation to sage-grouse and
sage-grouse habitats. These changes have affected what areas are
prioritized for firefighting resources during periods of fire activity
(Murphy et al. 2013, p. 4). While we do not currently know the extent
to which these regulatory and non-regulatory mechanisms will alleviate
the wildfire impact to sage-grouse, we are confident that that this
strategic and coordinated effort by wildfire managers to protect sage-
grouse habitat will reduce the impacts from wildfire. Targeting the
protection of important sage-grouse habitats during fire suppression
and fuels management activities could help reduce loss of key habitat
due to fire if directed through a long-term, regulatory mechanism.
Altered Fire Cycle
Historically, wildfire was the principal natural disturbance in the
sagebrush ecosystem (Factor A). Sagebrush likely consisted of extensive
sagebrush habitat dotted by small areas of grassland. This ecosystem
was maintained by long interludes of primarily numerous small fires,
punctuated by large fire events that consumed larger expanses (Baker
2011, pp. 196-197; Bukowski and Baker 2013, pp. 559-561). Historical
mean fire-return intervals (the average number of years between two
successive fires) have been estimated to be 100 to 350 years in low-
lying, xeric, Wyoming big sagebrush communities, and 50 to more than
200 years in more mesic areas and mountain big sagebrush communities
(Baker 2006, p. 181; Mensing et al. 2006, p. 75; Baker 2011, pp. 194-
195; Miller et al. 2011, p. 166; Bukowski and Baker 2013, entire). Fire
by itself, managed within a historical range of variation, may not
necessarily be a threat to sage-grouse. However, altered fire
intensity, size, and frequency, due in part to the presence of invasive
annual grasses, has resulted in fire posing an increasing threat to
sage-grouse, especially in the Great Basin.
Since the mid- to late 1800s, human activities have changed the
vegetation composition and structure of the sagebrush ecosystem that
has subsequently altered the fire regime (Chambers et al. 2014a, p. 3).
Changes in wildfire frequency have adversely affected larger parts of
sage-grouse range, particularly in the Great Basin (Figure 6). From
1980 to 2007, the number of fires and the total area burned increased
in most MZs (Miller et al. 2011, pp. 169, 176). We conducted a
geospatial analysis of burned areas that shows that between 2000 and
2008, within the Great Basin, more than 2.7 million ha (6.7 million ac)
burned within the occupied range of sage-grouse, with more than 2
million ha (5 million ac) occurring in MZ IV alone (Table 7). Between
2009 and 2014, an additional 1.8 million ha (4.6 million ac) burned
within the occupied range of sage-grouse, with most of the impact
occurring in MZs IV and V in the Great Basin (Table 7). Between 2000
and 2014, the Great Basin experienced an average burn rate of
approximately 0.85 percent per year (Table 7).
[[Page 59897]]
[GRAPHIC] [TIFF OMITTED] TP02OC15.005
Table 7--Area of Sage-Grouse Occupied Range Burned From 2000 to 2014 in the Great Basin
[Including the Columbia Basin]
----------------------------------------------------------------------------------------------------------------
Annual burn
Management zone 2000-2008 area 2009-2014 area 2000-2014 area rate \1\
burned burned burned (percent)
----------------------------------------------------------------------------------------------------------------
III......................... ha................ 410,730 148,993 559,723 0.32
ac................ 1,014,937 368,171 1,383,108
IV.......................... ha................ 2,029,750 1,073,048 3,102,789 1.32
ac................ 5,015,622 2,651,560 7,667,182
V........................... ha................ 262,033 580,745 842,788 0.72
ac................ 647,499 1,435,053 2,082,552
VI.......................... ha................ 27,649 61,963 89,612 0.54
ac................ 68,434 153,116 221,550
Totals.................. ha................ 2,730,162 1,864,749 4,594,912 0.85
ac................ 6,746,492 4,607,900 11,354,392
----------------------------------------------------------------------------------------------------------------
\1\ Annual burn rates were calculated using average number of acres burned per year (2000-2014) divided by total
occupied range for each area assessed.
We anticipate that these average burn rates will continue in the
future and could increase due to cheatgrass expansion, climate change,
and drought (see Wildfire and Invasive Plant Impacts, below). These
burn rates are based on wildfire-impacted acres each year and do not
account for areas previously burned that re-burn each year; as a
result, this rate likely overestimates the amount of habitat that could
be impacted each year, as re-burn areas may no longer provide habitat.
This burn rate is similar to the current and future burn rates analyzed
in the 2010 finding.
Fire occurring within the range of sage-grouse can cause direct
loss of habitat, resulting in negative impacts to breeding, feeding,
and sheltering opportunities for the species (Call and Maser 1985, p.
17). In addition to the direct habitat loss, fire can also create a
functional barrier to sage-grouse
[[Page 59898]]
movements and dispersal that compounds the influence wildfire can have
on populations and population dynamics (Fischer et al. 1997, p. 89). In
some cases, fire can isolate sage-grouse populations, thereby
increasing their risk of extirpation (Knick and Hanser 2011, p. 395;
Wisdom et al. 2011, p. 469).
Wildfire is associated with sage-grouse declines across the West
(Beck et al. 2009, p. 400; Johnson et al. 2011, p. 424; Knick and
Hanser 2011, p. 395). The extent and abundance of sagebrush habitats,
the proximity to burned habitat, and the degree of connectivity among
sage-grouse populations affects persistence (Johnson et al. 2011, p.
424; Knick and Hanser 2011, pp. 403-404; Wisdom et al. 2011, p. 461).
Fire has been found to cause negative population trends and lek
extirpation (Knick and Hanser 2011, p. 395; Johnson et al. 2011, p.
422).
Invasive Plants and the Wildfire Cycle
In 2010, we analyzed the effects of wildfire and invasive plants
separately (75 FR 13910, March 23, 2010, pp. 13931-13937). Since that
time, we have come to better understand the positive feedback loop
between cheatgrass and wildfire, and believe that fire and invasive
plants must be assessed, and managed, together to fully address
potential impacts on sage-grouse and its habitat. Evidence of a
significant relationship exists between an increase in wildfire
occurrence caused by cheatgrass invasion in the Snake River Plain (MZ
IV) and Northern Great Basin (MZ V) since the 1960s (Miller et al.
2011, p. 167) and in northern Nevada and eastern Oregon since 1980 (MZs
IV and V). The extensive distribution and highly invasive nature of
these invasive annual grasses poses increased wildfire risk and
permanent loss of sagebrush habitat, because areas disturbed by fire
are highly susceptible to further invasion and ultimately habitat
conversion to an altered community state (Miller et al. 2011, p. 182).
Progressive losses of resilience and resistance can result in the
crossing of abiotic and biotic thresholds (Beisner et al. 2003, pp.
376-382) and may lead to a catastrophic shift in community structure
(Scheffer et al. 2009, pp. 53-59; Reisner et al. 2013, p. 1047).
Functional habitat loss is occurring because of long-term loss of
sagebrush cover and conversion to nonnative annual grasses (primarily
cheatgrass), mainly due to an increase in wildfire occurrence,
intensity, and severity (Miller et al. 2011, p. 183). The positive
feedback process between cheatgrass and wildfires facilitates future
fires, sagebrush loss, and cheatgrass dominance, resulting in entire
landscapes being converted to nonnative annual grasslands (Miller et
al. 2011, p. 183). Invasive plants reduce and, in cases where
monocultures occur, eliminate vegetation that sage-grouse use for food
and cover and fragment existing sage-grouse habitat (Miller et al.
2011, pp. 160-164). Invasives do not provide quality sage-grouse
habitat and, where invasive plants are present, sage-grouse are
potentially impacted both seasonally (e.g., loss of forbs and
associated insects) and long term (e.g., functional habitat loss)
(Manier et al. 2013, p. 88).
Interactions among disturbances and stressors may have cumulative
effects (Chambers et al. 2014c, pp. 365-368). Invasive annual grasses
and noxious perennials continue to expand their range, facilitated by
ground disturbances, caused by more frequent and more severe wildfires,
improper grazing of native perennial plants by domestic livestock and
free-roaming equids, infrastructure, and other anthropogenic activity
(Rice and Mack 1991, p. 84; Gelbard and Belnap 2003, p. 420; Zouhar et
al. 2008, p. 23), but disturbance is not required for invasives to
spread (Young and Allen 1997, p. 531; Roundy et al. 2007, p. 614).
Invasions also may occur sequentially, where initial invaders (e.g.,
cheatgrass) are replaced by new invasive plants (Crawford et al. 2004,
p. 9; Miller et al. 2011, p. 160). Long-term changes in climate that
facilitate invasion and establishment by invasive annual grasses
further exacerbate the fire regime and accelerate the loss of sagebrush
habitats (D'Antonio and Vitousek 1992, pp. 63-87). The effects of
disturbance will likely be amplified by greater susceptibility of
habitats to burn as well as decreased likelihood for recovery of
sagebrush ecosystems (Miller et al. 2011, p. 183).
The arrival of European settlers in the mid-1800s initiated a
series of changes in vegetation composition that impacted sagebrush
ecosystems (Chambers et al. 2014a, p. 3). For example, improper grazing
practices decreased native perennial grasses and forbs (Chambers et al.
2014a, p. 3; Miller and Eddleman 2001, p. 17; Miller et al. 2011, p.
181), which facilitated the invasion of nonnative annual grasses,
particularly cheatgrass and Taeniatherum caput-medusae (medusahead).
This increase in fuel load and the lower fuel moisture content of the
invasive annual grasses has resulted in more frequent, higher intensity
fires (Brooks et al. 2004, pp. 679-680). Moreover, invasive annual
grasses expand rapidly after fire disturbances becoming a readily
burnable fuel source, and ultimately lead to a recurrent fire cycle
that prevents sagebrush reestablishment (Zouhar et al. 2008, p. 41;
Eiswerth et al. 2009, p. 1324; Miller et al. 2011, pp. 163-170).
Currently, invasive annual grasses are known to occur across the
sage-grouse occupied range, with the greatest infestations occurring in
the Great Basin (Figure 7). In the Great Basin, cheatgrass dominates
over 6.9 million ha (17 million ac) and occupies an additional 25
million ha (62 million ac) as a component of the plant community
(Diamond et al. 2012, p. 259). Approximately 58 percent of sagebrush
habitat in the Great Basin is believed to be at moderate to high risk
of cheatgrass invasion during the next 30 years (Suring et al. 2005, p.
138). Although nonnative annual grasses are more pervasive in the Great
Basin than the Rocky Mountain States (Figure 7) (Connelly et al. 2004,
p. 5-9; Miller et al. 2011, p. 160), in recent years, cheatgrass (and
other nonnative annual grasses) has increased its spread across the
eastern portion of the species' range (Mealor et al. 2012, p. 427).
Without effective management, the invasion of cheatgrass into the
eastern portion of the species' range is likely to continue (Mealor et
al. 2012, p. 427), and even now, with more effective management being
employed, we expect that sage-grouse habitat will continue to be lost
to some degree in the future.
[[Page 59899]]
[GRAPHIC] [TIFF OMITTED] TP02OC15.006
Nonnative annual grasses, such as cheatgrass and medusahead, have
substantially altered regional fire regimes (Balch et al. 2013, p.
179). Cheatgrass-dominated rangelands affect sagebrush ecosystems by
shortening fire-return intervals and perpetuating their own persistence
and intensifying the role of wildfire (Whisenant 1990, p. 4). Sites
dominated by cheatgrass may be four times more likely to burn than
native sagebrush (Balch et al. 2013, p. 178). Invasive annual grasses
increase the amount of fine fuels, resulting in wildfires that burn
hotter and more evenly than historical times (Miller et al. 2011, p.
167). Hotter and more expansive wildfires frequently burn larger
contiguous areas of sagebrush and leave fewer pockets of unburnt
sagebrush that would be available to recolonize the burned areas. The
positive feedback process between cheatgrass and wildfire converts
high-diversity native communities into low-diversity communities
dominated by invasive plants that are unsuitable for sage-grouse and at
increased risk of wildfire reoccurrence (Chambers et al. 2014a, pp. 3-
8).
Wildfire and Invasive Plant Impacts
While it is known that sage-grouse respond negatively to wildfire
(Johnson et al. 2011, pp. 424-425; Knick and Hanser 2011, pp. 395-403),
it is challenging to predict the location and extent of future
wildfires. However, a recent study provides insight to the wildfire and
invasive plant cycle and serves as a useful tool in predicting future
impacts (Chambers et al. 2014a, entire). This study used soil
temperature and moisture regimes as an indicator of landscapes'
resilience to disturbance and resistance to invasive annual grasses.
This work classified different ecological soil and moisture regimes
(Chambers et al. 2014a, p. 16) into three categories of resiliency and
resistance to wildfire and invasive species disturbance (which is known
as the R&R matrix). For example, areas with low R&R values tend to be
prone to invasion by cheatgrass (and, therefore, are at higher risk of
large catastrophic wildfires) because these ecosystems have relatively
lower resilience to disturbance and higher climate suitability for
invasive annual grasses; therefore, low R&R areas are less likely to
provide ecological benefits within the sagebrush ecosystem in the
future. We assessed the risk of future wildfire and invasive plant
invasion by examining the amount of breeding habitat occurring within
the three R&R matrix classes. Habitat identified as low resistance was
considered most likely to be adversely affected by wildfire and
invasives. Because nonnative annual grasses are more prevalent in the
Great Basin than the Rocky Mountain States (Connelly et al. 2004, p. 5-
9; Miller et al. 2011, p. 160), we limited our analysis to the Great
Basin MZs III, IV, and V.
In our analysis, sage-grouse in MZ III appear to be at greatest
risk from wildfire and nonnative annual grass invasion, with 54 percent
of sage-grouse breeding habitat occurring in areas classified as having
low resistance. The majority of sage-grouse breeding habitat in MZs IV
and V occur in areas having either high or moderate resistance and
resiliency to fire and invasives (Table 8).
Table 8--Percent of Sage-Grouse Breeding Habitat Within Each Great Basin
Management Zone That Occurs Within the Three Classes of Resiliency and
Resistance to Invasive Plants and Wildfire
------------------------------------------------------------------------
MZ III MZ IV MZ V
(%) (%) (%)
------------------------------------------------------------------------
Wetland/Riparian............................. 2 2 1
[[Page 59900]]
High Resistance.............................. 16 35 8
Moderate Resistance.......................... 28 36 59
Low Resistance............................... 54 27 33
------------------------------------------------------------------------
While useful for estimating future wildfire and invasive plant
risk, sagebrush resistance and resilience does not necessarily equate
to sage-grouse resilience and resistance. Depending on the location and
extent of wildfires, the amount of undisturbed habitat may be
diminished such that it cannot sustain local populations. In addition,
depending upon where wildfires occur, impacts to sage-grouse could be
greater due to lost connectivity between populations. However, without
the ability to predict the location, size, and severity of a wildfire,
it is difficult to predict with certainty the location and degree of
habitat fragmentation that may occur in the future or the associated
population impacts.
A recent study examined the potential impact of wildfire and
invasive plants on future sage-grouse population trends in the Great
Basin (Coates et al. 2015, entire). This study examined 30 years of
wildfire and population trend data to estimate Great Basin population
trends over the next 30 years, with and without additional management
to reduce wildfire impacts (Coates et al. 2015, pp. 6-18). Without
additional management, wildfire and invasive plants are forecast to
cause sage-grouse abundance in the Great Basin to decline by 43 percent
by 2044 (Coates et al. 2015, pp. 18-31). Improved management of
wildfire suppression and invasive plant infestation could reduce the
rate of decline depending upon the success rate of the management
approach (Coates et al. 2015, p. 34). This study did not consider the
impact of post-wildfire restoration projects, which could further
reduce the rate of population decline (Coates et al. 2015, p. 34). The
projected future impact of fire on abundance trends likely also depends
upon climatic conditions (Coates et al. 2015, p. 34), which, as
discussed in Climate Change and Drought (see below), is difficult to
forecast with certainty 30 years into the future.
Without changes in wildfire and invasive plant management, we
anticipate that wildfire would continue to affect the Great Basin at
the current rate of about 0.85 percent per year (see Altered Fire
Cycle, above). This rate could potentially increase due to the
intensifying synergistic interactions among fire, human activity,
invasive plants, and climate change (Neilson et al. 2005, p. 157;
Miller et al. 2011, pp. 179-184). Increased human presence and
associated infrastructure, such as roads and power lines, could
increase the risk of human-caused wildfires. Any future decreases in
wildfire and invasive plant risk is dependent upon the successful
implementation of wildfire and invasive conservation efforts, as
discussed below.
Conservation Efforts
As mentioned above, since 2010, wildfire managers have taken
significant steps to better understand and address the impacts of
wildfire on sage-grouse habitat. As part of that effort, local, State,
and Federal land managers have undertaken considerable efforts to
address the impacts of wildfire and invasive plants. Federal, State,
and local partners have implemented a number of projects and programs
to prevent and suppress the spread of wildfire and invasive plants, and
where impacts have already occurred, to restore, consistent with
recommendations in the COT Report (USFWS 2013, pp. 40-43). As discussed
further below, the Federal Plans, FIAT assessments, and Secretarial
Order provide guidance, coordination, and commitments for Federal and
State agencies and private landowners to address the wildfire and
invasive plants cycle and reduce impacts to sage-grouse.
The BLM has a long history of implementing vegetation management
treatments and has made considerable investments in fuels and
restoration treatments within the sagebrush ecosystem since 2010.
Analyses of more than 4,000 completed BLM projects suggest these
treatments provide direct and indirect benefits to sage-grouse
populations and have been effective at ameliorating the impacts of
wildfire and invasives to sage-grouse (Table 9). The strong emphasis on
sage-grouse since 2010 is reflected through focusing additional and
existing resources to protect, conserve, and restore sage-grouse
habitat. This emphasis has shifted priorities in many of the BLM's
programs that treat vegetation, including fuels management and post-
fire recovery. The BLM has incorporated emerging science, monitoring
results, and adaptive management to influence and modify vegetation
management work to achieve the most ecosystem and landscape benefit.
Table 9--Bureau of Land Management Projects Implemented Since 2009 To Ameliorate the Impacts of Wildfire and Invasives to Sage-Grouse
[Adapted from DOI 2015e, pp. 3-5]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Completed In-progress Planned
--------------------------------------------------------------------------------------------------
Treatment Number of Number of Number of
projects ha ac projects ha ac projects ha ac
--------------------------------------------------------------------------------------------------------------------------------------------------------
Habitat Restoration.................................. 1,395 322,167 796,091 102 33,060 81,692 40 5,805 14,345
Conifer Removal...................................... 693 179,756 444,186 119 48,099 118,854 134 154,661 382,175
Wildfire Pre-suppression............................. 608 34,062 84,169 45 13,357 33,005 55 8,415 20,793
Habitat Restoration Following Wildfire............... 554 620,955 1,534,412 25 40,635 100,410 7 16,442 40,628
--------------------------------------------------------------------------------------------------
Totals........................................... 3,250 1,156,940 2,858,858 291 135,149 333,961 236 185,322 457,941
--------------------------------------------------------------------------------------------------------------------------------------------------------
The Federal Plans require that livestock grazing and feral horses
be managed at levels necessary to achieve Land Health Standards (LHS)
(see Grazing and Rangeland Management and Free-roaming Equids, below).
These standards include minimizing the presence of cheatgrass and other
invasive annual grasses within sage-
[[Page 59901]]
grouse habitat. These Federal Plan requirements will reduce the
infestation of cheatgrass over the long term, reducing wildfire
intensity, size, and frequency, and restoring a more natural role of
wildfire in the sagebrush ecosystem.
Within the Great Basin, the efforts by BLM, USFS, and DOI to
address the impacts of wildfire and invasive plants on a landscape
scale are particularly noteworthy. The BLM and USFS are implementing
FIAT as part of their Federal Plans to prioritize actions directed at
reducing the impacts of invasive annual grasses, wildfires, and conifer
encroachment (BLM 2014, entire). Additionally, DOI has committed to the
implementation of Secretarial Order 3336, Rangeland Fire Prevention,
Management, and Restoration (Secretarial Order), which will result in a
multiagency wildfire management paradigm shift that highlights the
protection of sagebrush habitat. The BLM and USFS continue to implement
measures to reduce the potential threat of wildfire to sage-grouse
habitat through greater emphasis on preventing and suppressing
wildfire, and restoring sagebrush landscapes threatened by wildfire and
invasive species by means of improved Federal-State-local collaboration
and coordination. Those efforts, as well as work by local and State
wildfire managers, are discussed in further detail below.
Fire and Invasives Assessment Tool--The FIAT is a collaborative
multiagency effort by Federal, State, and local wildlife, forestry, and
firefighting organizations that identified potential project areas and
management strategies in highly valued sage-grouse habitats. As
committed to in the Federal Plans, implementation of the FIAT
assessments will reduce the potential impacts to sage-grouse resulting
from invasive annual grasses, wildfires, and conifer expansion by
prioritizing and focusing wildfire and invasive plant management
efforts on the most important sage-grouse habitat while still
prioritizing fire fighter and human safety. Focal habitats were
identified within PACs based on patterns of ecological resistance and
resilience, landscape sagebrush cover, burn probability, and conifer
expansion, resulting in the following priority landscapes: Central
Oregon, Northern Great Basin, Snake/Salmon/Beaverhead, Southern Great
Basin, and Western Great Basin/Warm Springs Valley. For each priority
landscape, regional findings were stepped down to describe local
conditions by Project Planning Area and associated treatment needs and
management priorities (BLM 2014, p. 9). Assessment of treatment needs
and priorities were based on recent scientific research on resistance
and resilience of Great Basin ecosystems (Chambers et al. 2014a,
entire, which was described above) and NRCS soil surveys that include
geospatial information on soil temperature and moisture regimes (BLM
2014, p. 3; and Campbell 2014, entire).
Potential management actions to resolve resource issues were
divided into proactive approaches (e.g., fuels management and habitat
recovery/restoration) and reactive approaches (e.g., fire operations
and post-fire rehabilitation) (BLM 2014, p. 3). Proactive management
strategies are intended to favorably modify wildfire behavior and
restore or improve desirable habitat to provide greater resistance to
invasive annual grasses and/or resilience after disturbances such as
wildfires. Reactive management strategies are intended to reduce the
loss of sage-grouse habitat from wildfires or stabilize soils and
reduce impacts of invasive annual grasses in sage-grouse habitat after
wildfires. Proactive management strategies, if implemented and
effective, will result in long-term sage-grouse habitat improvement and
stability, while effective reactive management strategies are essential
to reduce current impacts of wildfires on sage-grouse habitat, thus
maintaining habitat stability, and allowing for long-term improvements
(BLM 2014, pp. 2-3).
Cumulatively, the FIAT assessments of the five priority areas
identify more than 16,000 km (10,000 mi) of potential linear fuel
treatments, approximately 2.99 million ha (7.4 million ac) of potential
conifer treatments, more than 2 million ha (5 million ac) of potential
invasive plant treatments, and more than 7.7 million ha (19 million ac)
of post-fire rehabilitation (i.e., should a fire occur, the post-fire
rehabilitation identifies which areas BLM would prioritize for
management) within the Great Basin region (Table 10). The FIAT
assessments also identify site-appropriate management strategies for
fire operations and post-fire decisions. These assessments provide
direction about the extent, location, and rationale for management
opportunities to address potential threats to sage-grouse. This
comprehensive and forward-looking approach to both prevention and post-
fire treatments in the Great Basin represents a distinct change in
approach and emphasis since we made our 2010 finding.
Table 10--FIAT Assessment Projects for Five Priority Landscapes in the Great Basin Region
[Adapted from BLM 2015a, entire]
--------------------------------------------------------------------------------------------------------------------------------------------------------
FIAT Assessment area
--------------------------------------------------------------------------------
MZ III MZ IV MZ V
Potential treatment type -------------------------------------------------------------------------------- Totals
Western Great
Southern Great Northern Great Snake/Salmon/ Central Basin/Warm
Basin Basin Beaverhead Oregon Springs Valley
--------------------------------------------------------------------------------------------------------------------------------------------------------
Habitat Restoration................ ha................. 1,203,333 1,951,113 603,792 436,589 840,277 5,035,104
ac................. 2,973,499 4,821,300 1,492,000 1,078,835 2,076,367 12,442,001
Fuels Treatments................... ha................. 7,322 185,508 35,329 231 n/a 228,390
ac................. 18,092 458,400 87,300 571 n/a 564,363
Linear Fuels Treatments............ km................. 2,398 8,530 644 156 5,309 17,036
mi................. 1,490 5,300 400 97 3,299 10,586
Fire Operations \1\................ ha................. 3,689,627 4,829,644 2,121,162 361,645 3,268,267 13,270,346
ac................. 9,117,260 11,934,300 5,241,500 893,643 5,605,006 32,791,709
Post-Fire Rehabilitation (ESR) \2\. ha................. 7,133 3,960,905 1,502,963 203,865 2,069,505 7,744,370
ac................. 17,625 9,787,600 3,713,900 503,760 5,113,853 19,136,738
Conifer Treatments................. ha................. 954,090 1,254,729 205,621 224,530 354,151 2,993,121
ac................. 2,357,606 3,100,500 508,100 554,824 875,126 7,396,156
[[Page 59902]]
Invasive Plant Treatment \3\....... ha................. 1,196,979 164,748 90,407 212,909 396,197 2,061,239
ac................. 2,957,796 407,100 223,400 526,109 979,024 5,093,429
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Fire operations include preparedness, prevention, and suppression activities. As opposed to proactive, site-specific planned treatments, fire
operations and post-fire rehabilitation treatments are reactive responses to random wildfires.
\2\ Post-fire rehabilitation includes the BLM's ESR Program and the USFS's BAER Program. Program policies limit available funding from 1 to 3 years.
\3\ For the purposes of FIAT, invasive species were limited to invasive annual grasses.
The planning, implementation, and monitoring of the FIAT
assessments are a multiyear process. Planning is completed for some
FIAT assessment projects, and implementation has begun (Table 11).
Others similar projects are in early planning stages, but are expected
to be implemented in the near future. To date, the BLM has made
substantial investments in fuels and restoration treatments to address
the impacts of fire and invasives on sage-grouse habitats, especially
within the FIAT assessment areas.
Table 11--FIAT Projects Implemented in Fiscal Year 2015 as of August 30, 2015
[BLM 2015h, attachment 1]
--------------------------------------------------------------------------------------------------------------------------------------------------------
FY15 FIAT and other sage-grouse fuels program work
---------------------------------------------------------------------------------------------------------------------------------------------------------
Completed In-progress
-----------------------------------------------------------------------------------------------
Treatment Number of Number of
projects ha ac projects ha ac
--------------------------------------------------------------------------------------------------------------------------------------------------------
Conifer Removal......................................... 324 56,052 138,508 146 22,210 54,884
Wildfire Pre-suppression................................ 130 16,778 41,460 74 2,217 5,480
Habitat Restoration..................................... 248 74,111 183,134 90 25,971 64,176
-----------------------------------------------------------------------------------------------
Totals.............................................. 702 146,941 363,102 310 50,398 124,540
--------------------------------------------------------------------------------------------------------------------------------------------------------
Secretarial Order 3336--On January 5, 2015, the Secretary signed
Secretarial Order 3336 (Secretarial Order), which sets forth enhanced
policies and strategies for preventing and suppressing rangeland fire
and for restoring sagebrush landscapes impacted by fire across the
Great Basin region (DOI 2015b, entire). The Secretarial Order
establishes a Rangeland Fire Task Force (Task Force), which completed
an Implementation Plan (DOI 2015d, entire) that established a roadmap
to accomplish the objectives of the Secretarial Order. The
Implementation Plan also provided a timeline and methodology to be used
in developing two separate reports on short- (2015 western fire season)
and long-term (2016 western fire season and beyond) actions and
activities that will be implemented to further address the impacts of
wildfire in the Great Basin. The Secretarial Order complements the FIAT
process by providing support and resource commitments for some of the
projects identified in the FIAT assessments. For example, the
Secretarial Order emphasizes the research on wildfire and invasive
plant prevention and restoration (DOI 2015b, entire) that will support
the adaptive management of FIAT assessment projects.
Further, the Secretarial Order provides clear direction to all
affected Department of the Interior bureaus (DOI 2015b, entire), in
particular BLM, for prioritizing actions to address key elements of
wildfire management, including effective rangeland management, fire
prevention, fire suppression, and restoration at a landscape scale.
Building on BLM and USFS' long and successful history of managing
wildfire in the Western United States, the Secretarial Order focuses
the existing rangewide commitment to effective wildfire management--as
well as invasive species control and restoration--to protect large,
intact sagebrush landscapes against the destructive effects of wildfire
and invasive species. For example, BLM has dedicated increased
resources to all aspects of fire management within the species' range
for the 2015 wildfire season. Similarly, BLM is actively pursuing the
long-term directives in the Final Report component of the Secretarial
Order, such as a national seed strategy, to support effective
restoration efforts (DOI 2015a).
Initial Report
On March 1, 2015, the Task Force completed ``SO 3336--The Initial
Report: A Strategic Plan for Addressing Rangeland Fire Prevention,
Management, and Restoration in 2015'' (DOI 2015c, entire), detailing
activities that could be undertaken in advance of the 2015 western fire
season to improve the efficiency and effectiveness of wildfire
management efforts. The actions identified in the Initial Report
included priorities to strengthen planning and preparedness, such as
increasing capabilities of rangeland fire protection associations
(RFPA) and volunteer departments, utilizing veteran crews, ensuring
fire management organizations are prepared and functional, and
increasing initial attack and extended attack capability. In
[[Page 59903]]
response, the BLM has allocated additional resources to reflect these
FY15 priorities (BLM 2015h; DOI 2015a; DOI 2015e), including:
Allocating 6 million dollars in additional base funding to
bolster fire programs for the long term.
Allocating approximately 10.6 million dollars to hire
additional seasonal firefighters and to support equipment (e.g.,
dozers, water tenders, etc.). Using this funding, the BLM hired 100
additional firefighters in 2015, and DOI gave each Great Basin State
supplemental funding to cover staffing shortages. With supplemental
funds from the DOI, the BLM also purchased new equipment for the 2015
fire season. An additional 20 single-engine air tankers were pre-
positioned near critical sagebrush habitat throughout the western
United States. Helicopters were mobilized to address sage-grouse
priority areas, and the helitack crew size was increased in order to
provide more efficient initial attack. An additional jet lead plane was
available to insure support for retardant planes mobilized to protect
these critical areas. The BLM has also purchased several dozers, dozer
transports, water trailers, and semi-trucks to boost or maintain the
BLM's initial attack resource capability and initial attack success
rate in critical sagebrush areas in the Great Basin.
Committing 500,000 dollars to train rural fire departments
and RFPAs in important sagebrush ecosystems and sage-grouse habitat
areas.
Providing training for more than 200 veterans to work on
20-person firefighting crews. California, Nevada, and Oregon BLM
offices have hired returning veterans who bring skills such as physical
fitness, endurance, leadership, communications, and operation of heavy
equipment.
In addition to these actions, the BLM dedicated fuels program
funding for fuels treatment and fire suppression to Great Basin States
(BLM 2015h). Fuels treatment projects are prioritized and implemented
based on location, opportunities for success, and overall benefit to
protecting, conserving, and restoring sagebrush ecosystems and key
sage-grouse habitat. Fire management actions taken by the BLM during
the 2015 wildfire season has resulted in fewer acres of sage-grouse
habitat burned in the early fire season compared to past years with
similar weather and fuel conditions (BLM 2015h). For example, the Fuels
Treatment Effectiveness Monitoring (FTEM) system is a database that
captures anecdotal information when a wildfire intersects a past fuels
treatment (BLM 2015h). So far in 2015, two fires in sage-grouse habitat
(i.e., the ``499'' wildfire in Prineville, Oregon and the ``Hwy 290''
wildfire in Winnemucca, Nevada) have been entered into the system and
demonstrate the effectiveness of the fuels treatment. Additionally,
fuels treatments have reduced the size of unplanned wildfires, assisted
in providing opportunities to stop or slow the spread of the wildfire,
provided for greater firefighter safety, and protected sage-grouse
habitat (BLM 2015h). Currently the BLM has completed more than 80
percent of the action items and activities outlined in the Initial
Report (Table 12).
Table 12--Secretarial Order Initial Report Actions Implemented in Fiscal
Year 2015
[McKnight, BLM, 2015, pers. comm.]
------------------------------------------------------------------------
Action item and
Status description Deliverable
------------------------------------------------------------------------
Section 7.b.i. Integrated Response Plans
------------------------------------------------------------------------
Completed........ Action Item #1: Coordinate with State, tribal,
Increase the and local government partners
capabilities and use to leverage training assets
of rural/volunteer and capabilities.
fire departments and Specifically, the DOI/BLM
RFPAs and enhance will seek to deliver training
the development and to approximately 2,500
use of veteran crews. cooperators and increase the
utilization of veteran crews.
Completed........ Action Item #2: Report out from States. MAC
Ensure local, multi- groups, working with local
agency coordination Federal wildland fire
(MAC) groups are suppression agencies, tribes,
functional and MAC State fire suppression
plans are updated. agencies, local fire
departments, RFPAs, and other
cooperators.
Completed........ Action Item #3: Report out from States. All
Develop and units managing priority sage-
implement minimum grouse habitat will develop
draw-down level and and implement a minimum draw-
step up plans to down level and step up plans
ensure availability to clearly identify those
of resources for suppression resources
protection in necessary in order to
priority greater maintain an effective,
sage-grouse habitat. aggressive initial attack
capability.
Completed........ Action Item #4: Apply Report out from States. Review
a coordinated, risk- and update CAD systems to
based approach to ensure initial attack
wildfire response to response to priority sage-
ensure initial grouse areas in protection of
attack response to sage-grouse habitat.
priority areas.
Completed........ Action Item #5: Prepare standardized briefing
Develop a materials on sagebrush-steppe
standardized set of and sage-grouse wildfire
briefing materials. protection for incoming Type
1-3 Incident Management Teams
and other fire management
resources.
Completed........ Action Item #6: Report out from States. Update
Review and update and approve all Fire
local plans and Prevention Plans, Wildland
agreements for Fire Decision Support System
consistency and data, Fire Danger Operating
currency to ensure Plans, Preparedness Level
initial attack Plans, and Agreements and
response to priority Annual Operating Plans.
greater sage-grouse
areas.
Completed........ Action Item #7: Review severity funding policy
Develop supplemental and update guidance.
guidance for the use
of ``severity
funding''.
Ongoing.......... Action Item #8: Develop annual reporting
Evaluate the metrics for effectiveness
effectiveness of monitoring of wildland fire
action plans. response, with particular
emphasis on the effectiveness
of measures to improve
success in rangeland fire
response, based upon CAD
changes, and reporting of
success and/or failure as it
pertains to Federal Plans and
FMPs, and effectiveness of
enhanced training and
capacity measures.
Ongoing.......... Action Item #9: Increase access to digital
Increase the maps and mapping software by
availability of providing appropriate
technology and technology (such as
technology transfer smartphones and tablets) to
to fire management fire managers and suppression
managers and personnel. Remove barriers
suppression for acquisition of
resources. appropriate software and
hardware.
[[Page 59904]]
Completed........ Action Item #10: Improve the collection of
Improve the information about critical
description and resource values threatened,
awareness of including sage-grouse habitat
critical resource and populations, on the
values threatened in existing Incident Status
various stages of Summary (ICS 209) and ensure
the fire response this information is captured
process including in the Incident Management
large fire Situation Report (SIT
management. Report).
Completed........ Action Item #11: During annual preparedness
Ensure compliance reviews, review all CAD
and evaluation of systems and MAC plans for
the implementation compliance with the action
plan action items. plans outlined in Action
Items #1 through #4.
------------------------------------------------------------------------
Section 7.b.ii. Prioritization and Allocation of Resources
------------------------------------------------------------------------
Completed........ Action Item #1: Establish protocols for
Communication plan. providing Federal agency
leadership with regular
briefings and information on
wildfire activity, fire
conditions, and significant
issues in relation to
rangeland fire and the
implementation of the
Secretarial Order throughout
the 2015 wildfire season in
order to provide leadership
with an accurate
understanding and insight to
the conditions on the ground.
Senior leadership will
regularly communicate
national strategic priorities
and expectations to line
officers and fire staffs
during the wildfire season.
Completed........ Action Item #2: Ensure roles and
Review and update responsibilities.
the delegation of
authority for the
National Multi-
Agency Coordination
(NMAC) Group.
Completed........ Action Item #3: Issue Provide expectations for 2015.
national level
``Leader Intent''.
Completed........ Action Item #4: Communicate Leaders Intent.
Engage Geographic
Multi-Agency
Coordination (GMAC)
groups.
Ongoing.......... Action Item #5: Create standard language for
Develop ``Delegation use in a Delegation of
of Authority'' Authority template that
template for use by identifies the sage-steppe
local line officers. ecosystem and protection of
species as a priority. Line
officers will use this
standard template when
delegating authority to an
Incident Commander who has
responsibility for managing a
wildfire incident within a
FIAT area or has nexus to
one. Delivery to Districts.
Completed........ Action Item #6: Each agency use appropriate
Engage line officers internal mechanisms to
to communicate communicate intent and
Leaders' Intent and expectations to regional and
expectations. unit-level managers.
------------------------------------------------------------------------
Section 7.b.v. Post Fire Restoration
------------------------------------------------------------------------
Ongoing.......... Action Item #1: Update BAR evaluation and
Review and update rating criteria and review ES
Emergency policy and procedures.
Stabilization (ES)
and Burn Area
Rehabilitation (BAR)
policy guidance to
address rating and
evaluation criteria,
project design to
promote the
likelihood of
treatment success,
cost containment,
monitoring, and
continuity and
transition to long-
term restoration
activities and
treatments.
Ongoing.......... Action Item #2: Work with Departmental and
Address acquisition, bureau acquisition and
financial finance offices to provide
management, and funding and project
other procedures continuity at the beginning
that pose challenges of, and across, fiscal years.
to timely project
implementation.
Ongoing.......... Action Item #3: Accelerate preliminary
Accelerate schedule approvals that will allow
approving BAR sufficient lead time to
projects consistent complete cultural and other
with the guidelines clearances (e.g., NEPA and
established for the National Preservation Act of
2015 fire season. 1966 [Section 106]6),
procurement planning, and
other advance work that will
take place prior to the
application of full funding
at the beginning of the
fiscal year.
Completed........ Action Item #4: Funding of ES and BAR projects
Identify non-fire will be evaluated based on
programs and opportunities and commitments
activities that will from non-fire program and
fund treatments and activities if the work that
restoration is proposed will extend
activities for the beyond the ES and BAR
long term in duration.
conjunction with BAR
and ES policy and
program review to be
conducted in 2015.
Ongoing.......... Action Item #5: Implementation of new criteria
Identify for project evaluation and
requirements for oversight may require updates
National Fire Plan and changes to NFPORS.
Operations and
Reporting System
(NFPORS)
capabilities.
------------------------------------------------------------------------
Section 7.b.ix. Seed Strategy
------------------------------------------------------------------------
Completed........ Action Item #1: Complete the National Seed
Develop the draft Strategy and Implementation
National Seed Plan.
Strategy and
Implementation Plan.
Completed........ Action Item #2: Attend the Institute for
Identify a forum to Applied Ecology's National
discuss and Native Seed Conference.
highlight current
native seed and
restoration
techniques and
research.
Completed........ Action Item #3: A series of 15 webinars on
Provide an seeding and restoration
opportunity to entitled, ``The Right Seed in
discuss current the Right Place at the Right
research, case- Time: Tools for Sustainable
studies, and tools Restoration'' are offered
that inform applied through May 2015.
restoration
opportunities in the
Great Basin.
------------------------------------------------------------------------
[[Page 59905]]
The BLM has longstanding national and local policies that require
monitoring vegetation treatments (both implementation and effectiveness
monitoring) and guidance to apply monitoring data for adaptive
management. These planning policies require the BLM to set land use
goals and objectives, and to ensure that all vegetation treatments are
responding to those goals and objectives. The FIAT process requires
partnership with cooperators, agencies, and others involved in land or
wildlife management in the FIAT assessment areas, which helps ensure
BLM's treatments are benefitting the sagebrush ecosystem and that
proposed treatments provide direct and indirect benefits to sage-grouse
populations.
The management strategies identified by the FIAT process are
consistent with broader land use plan direction. Habitat restoration
treatments (e.g., biological, chemical, seeding, and broadcast burning)
are effective at reducing fine fuel loads and ultimately decrease fire
spread and area burned. Chemical applications are effective at removing
nonnative annual grasses and promoting growth and establishment of
native species. Seeding treatments implemented by the BLM are effective
at reducing undesirable species and promote the establishment of
desirable species because they are timed to achieve a high probability
of success. Conifer removal treatments are implemented to reduce fuel
loading and effectively reduce fire intensity, fire spread, and area
burned. Wildfire pre-suppression activities alter vegetation
composition, reducing the negative impacts from wildfire and invasives.
Projects are planned using fire behavior analysis tools that consider
topography, weather patterns, fire history, and fuel conditions to
ensure effectiveness. These treatments ultimately slow fire spread and
reduce fire size and area burned (DOI 2015e, entire). Fuels treatment
effectiveness monitoring reports of 722 wildfire/fuels treatment
intersections since 2001 demonstrate fuels treatment effectiveness
within the BLM (BLM 2015b, p. 1). Of the wildfire/treatment
interactions reported, 85 percent of the treatments helped control the
wildfire, and 90 percent changed the fire behavior (BLM 2015b, p. 2).
The BLM found that hazardous fuels treatments reduced the size of many
unplanned ignitions, assisted in providing opportunities to stop or
slow the spread of wildfire, provided for greater firefighter safety,
allowed opportunities to manage unplanned ignitions for resource
benefits, reduced the burn area rehabilitation needs and costs, reduced
smoke emissions, and allowed for greater resiliency of the environment
in returning to a functional ecosystem following wildfire (BLM 2015b,
p. 1). The BLM's post-fire emergency stabilization and burned area
rehabilitation treatments are planned, deliberate actions that promote
land stabilization and rehabilitation of burned landscapes. The BLM is
aggressively treating burned areas where there is a high probability of
cheatgrass invasion (BLM 2015h). Post-fire recovery treatments are
designed to promote native vegetation and to inhibit the establishment
of nonnative annual grasses. Some previous post-fire seeding
restoration attempts were found to be ineffective, with seeded areas as
likely to have sage-grouse occupancy compared to non-seeded areas
(Arkle et al. 2014, p. 15). However, post-fire seeding restoration was
more likely to be successful in higher elevation areas with particular
climate regimes and when projects were implemented in years preceding
cool, wet growing seasons (Arkle et al. 2014, p. 15). Therefore, the
FIAT process prioritizes restoration activities in areas with higher
resiliency and resistance to fire based on soil and moisture regimes
(Chambers et al. 2014b, p. 453). These treatments are effective at
addressing the impacts posed by invasive plants and ultimately address
future wildfire threats.
Once implemented, projects and treatments identified by FIAT will
follow the same monitoring protocols as non-FIAT management actions, in
accordance with overarching guidance in the Federal Plans.
Specifically, monitoring that evaluates the implementation and
effectiveness of FIAT management strategies will follow The Greater
Sage-Grouse Monitoring Framework (BLM and USFS 2014, entire). Given
past effectiveness and ongoing monitoring efforts, the BLM expects 95
to 99 percent of all habitat restoration, wildfire pre-suppression, and
conifer removal projects that are completed or in progress to
effectively ameliorate the impacts of wildfire and invasive plants to
sage-grouse (DOI 2015e, p. 9).
At the time of this writing, the 2015 fire season is under way, and
we cannot currently predict the outcome of the season in terms of
impacts to sage-grouse habitat. Similarly, it is premature to assess
how implementation of the wildfire and invasive plant conservation
efforts discussed above are working to address impacts during this fire
season. At the time of publication, approximately 200,000 ha (500,000
ac) of sage-grouse habitat has been estimated to be affected by
wildfires this year, including approximately 12 ha (30 ac) of SFA. Much
of the area burned is associated with a single wildfire that occurred
along the Idaho and Oregon border--the Soda Fire. This fire does
provide some insight into the implementation of the wildfire
conservation measures.
The Soda Fire started on August 10, 2015, burning approximately
114,000 ha (283,000 ac) of Federal, State, and private lands in
southwestern Idaho and eastern Oregon (NIFC 2015). Almost all of the
burned area is sage-grouse habitat, with more than 20,000 ha (about
50,000 ac) designated by BLM as PHMA for the species. Despite extreme
fire behavior, firefighters safely suppressed this wildfire with no
loss of life and no serious injuries to firefighters or the public. An
interagency Emergency Stabilization and Rehabilitation (ES&R) team of
more than 40 natural resource specialists has completed 5 days working
on the ground to assess damage and threats to life, property, and
resources on BLM-managed lands in both Idaho and Oregon. The ES&R team
is now designing treatments to mitigate threats and begin the
rehabilitation of the burned area (BLM2015h). Rehabilitation of burned
areas on State and private lands affected by the Soda Fire is being
handled through similar authorities and processes by Idaho Department
of Lands (IDL) and the NRCS. Other local, State, and Federal
organizations are participating throughout the process. A Memorandum of
Understanding (MOU) established in 2014 between BLM, Idaho Department
of Fish and Game, and IDL plays a key part in authorizing restoration
efforts and processes on State land, particularly in PHMAs and
Important Habitat Management Areas (IHMAs).
The Soda Fire is one of many examples of why the Secretary of the
Interior issued Secretarial Order 3336 to prioritize resources to
address the threat of wildfire in sagebrush habitats for Federal land
managers. We expect that the actions outlined in the Secretarial Order
and BLMs commitments to implement other new strategies and tools
identified (BLM 2015h) above will ultimately prove valuable in reducing
the negative effects of wildfire on sage-grouse habitat. Importantly,
the rapid completion of many of the near-term action items outlined in
the Initial Report--many of these measures were in place before the
onset of the 2015 fire season--signal a strong commitment from wildland
fire managers to implement these measures into the future.
[[Page 59906]]
Final Report
The ``SO3336--Final Report: An Integrated Rangeland Fire and
Management Strategy'' (DOI 2015c, entire), completed May 1, 2015,
outlines a long-term approach to improving the efficiency and efficacy
of actions to better prevent and suppress wildfire and to improve
efforts to restore fire-impacted landscapes both including and beyond
2016. This approach involves targeted investments to enhance efforts to
manage wildfire in the Great Basin, based on relative resilience and
resistance of habitat to fire. The Final Report also outlines longer
term actions to implement the policy and strategy set forth in the
Secretarial Order, including the continued implementation of approved
actions associated with the National Cohesive Wildland Fire Management
Strategy (DOI 2014, entire) that provides guidance for the safe and
effective suppression of wildfires. The actions outlined in the Final
Report primarily focus on the Great Basin region, but DOI intends for
the strategies developed under the Final Report to be applied rangewide
where there is benefit to sagebrush ecosystem habitat and sage-grouse.
Measures outlined in the Final Report include the following:
Designing and implementing comprehensive, integrated
fire response plans for the FIAT assessment areas in the Great Basin
subject to fire and invasives;
Providing clear direction on the prioritization and
allocation of fire management resources and assets;
Expanding the focus on fuels reduction opportunities
and implementation;
Fully integrating the emerging science of ecological
resilience into design of habitat management, fuels management, and
restoration projects;
Reviewing and updating emergency stabilization and
burned area rehabilitation policies and programs to integrate with
long-term restoration activities;
Committing to multiyear investments for the restoration
of sagebrush ecosystems, including consistent long-term monitoring
protocols and adaptive management for restored areas;
Implementing large-scale experimental activities to
remove cheatgrass and other invasive annual grasses through various
tools;
Committing to multiyear investments in science and
research; and
Developing a comprehensive strategy for acquisition,
storage, and distribution of seeds and other plant materials.
The Secretarial Order places a priority on ``protecting,
conserving, and restoring the health of the sagebrush-steppe ecosystem
and, in particular, sage-grouse habitat, while maintaining safe and
efficient operations,'' and looks to the allocation of fire resources
and assets associated with wildfire to reflect that priority. In
preparing the Final Report, the Task Force considered a wide variety of
possible actions for conserving habitat for the sage-grouse and other
wildlife species as well as economic activity, such as ranching and
recreation, associated with the sagebrush ecosystem in the Great Basin.
The strategy outlined in the Final Report builds upon the National
Cohesive Wildland Fire Management Strategy (DOI 2014, entire) and is
intended to ensure improved coordination with local, State, Tribal, and
regional efforts to address the potential threat of wildfire at a
landscape level.
In 2015, BLM initiated implementation of the National Seed
Strategy, a key program included in the Secretarial Order (BLM 2015c,
entire; BLM 2015h, entire). The ``National Seed Strategy for
Rehabilitation and Restoration 2015-2020'' (Seed Strategy) provides a
coordinated approach for stabilization, rehabilitation, and restoration
treatments. The Seed Strategy also provides a framework for actively
working with the private sector in order to build a ``seed industry''
for rehabilitation and restoration. This program was developed
specifically in response to concerns about the wildfire and invasive
plant cycle in the sagebrush ecosystem, and was identified in the
Secretarial Order. The Seed Strategy has the following four goals:
1. Identify seed needs, and ensure the reliable availability of
genetically appropriate seed;
2. Identify research needs and conduct research to provide
genetically appropriate seed and to improve technology for native seed
production and ecosystem restoration;
3. Develop tools that enable managers to make timely, informed
seeding decisions for ecological restoration; and
4. Develop strategies for internal and external communication.
The Seed Strategy ensures that adequate supplies of native seed
will be available for sagebrush ecosystem restoration. The use of
locally appropriate native seed will improve restoration success,
serving as an important tool in the suppression of invasive plant
infestations after habitat disturbances, such as wildfire. The measures
in the Seed Strategy are consistent with COT Report conservation
recommendations for post-wildfire restoration (USFWS 2013, p. 40). The
initiation of the Seed Strategy by BLM is evidence of DOI's commitments
to fully implement the measures included in the Secretarial Order and
serves as an important tool for the minimization of the wildfire-
invasive plant cycle across the species' range (BLM 2015h, entire).
We analyzed the certainty of implementation and effectiveness of
the Secretarial Order pursuant to PECE (68 FR 15100, March 28, 2003).
As noted above, the purpose of PECE is to ensure consistent and
adequate evaluation of recently formalized conservation efforts when
making listing decisions. The policy provides guidance on how to
evaluate conservation efforts that have not yet been implemented or
have not yet demonstrated effectiveness. The evaluation focuses on the
certainty that the conservation efforts will be implemented and the
effectiveness of the conservation efforts to contribute to make listing
a species unnecessary.
The majority of the actions identified in the Initial Report have
been implemented (BLM 2015h, entire). Specifically, the following
actions have taken place: Investments targeted to enhance efforts to
manage wildfire in the Great Basin; a process has been established for
allocating funds to support policies and strategies for preventing and
suppressing wildfire and for restoring sagebrush landscapes impacted by
fire across the Great Basin; and funds were provided this year to
support efforts under the Secretarial Order (BLM 2015h, entire). The
agencies have the legal authorities to carry out the responsibilities
under the Secretarial Order and it builds on the BLM and USFS' long and
successful history of managing wildfire in the Western United States.
Therefore, we expect that the efforts will continue to be implemented
to accomplish the objectives of the Secretarial Order.
The Secretarial Order is expected to work with FIAT and other
authorities to further help address the effects associated with
wildfire suppression and restoration and the spread of invasive
species. The Secretarial Order provides an implementation plan and
specific objectives including short-term actions for the 2015 fire
season and long-term actions needed to meet the objectives identified
in the order. Pursuant to the Secretarial Order, protocols for
monitoring vegetation treatments (both implementation and effectiveness
monitoring) were established and guidance was developed to apply
monitoring data for adaptive management (BLM 2105h, entire).
We expect that the measures will be effective in reducing the
impacts of wildfire and invasive plants to sage-grouse and its
habitats. The COT Report recommends containing wildfire within the
normal range (including size and
[[Page 59907]]
frequency), eliminating intentional fires, and restoring burned
sagebrush habitats (USFWS 2013, p. 40). As the COT Report noted,
reduction of the threat of wildfire is difficult (USFWS 2013, p. 40).
However, the Secretarial Order, FIAT and other authorities and actions
working in concert have provided the direction needed as described in
the COT Report. Many of the actions identified in the Initial Report
have already been implemented (BLM 2015h, entire). The actions yet to
be fully implemented from the Initial and Final Report have a high
level of certainty of implementation, given BLM's past track record of
implementation and their commitments and policy direction for future
implementation(BLM 2015h, entire). The Secretarial Order and associated
actions, both short and long term directly address the recommendations
found in the COT Report, are based on the best available information,
and address the major issues related to wildfire prevention and
suppression, as well as restoration of areas impacted by wildfire and
invasive plants. We expect that the Secretarial Order and associated
actions, both short- and long-term, will be implemented and will be
effective in reducing the effects to sage-grouse and its habitat from
wildfire and invasive species sufficient enough be considered in making
our determination.
Resilient Landscapes Funding and Projects--The Wildland Fire
Resilient Landscapes (WFRL) program is a new approach to achieve fire
resiliency goals across landscapes with the collaborative efforts
defined in the National Cohesive Wildland Fire Management Strategy (DOI
2014, entire), and in support of Secretarial Order 3336--Rangeland Fire
Prevention, Management, and Restoration. The WFRL program provides
opportunities for the DOI bureaus, working together with other Federal,
tribal, State, and local governmental and nongovernmental partners, to
identify and complete projects that are intended to contribute
significantly to restoring fire resilience in a variety of fire-adapted
ecosystems across the country. The Fiscal Year 2015 appropriation
provided 10 million dollars to the Fuels Management program to fund
resilient landscape activities, as a pilot initiative. Ten proposals
were selected for funding in 2015; three projects, representing 68
percent of the funding, are located within the range of sage-grouse,
and support the goals of the Secretarial Order (Table 13). The Fiscal
Year 2016 President's Budget proposes funding for the WFRL program at
30 million dollars to provide multiyear support for landscape-scale
projects and expand the program to new partnerships.
Table 13--Fiscal Year 2015 Wildland Fire Resilient Landscapes Program Projects Funded Within the Range of Sage-
Grouse
----------------------------------------------------------------------------------------------------------------
Project acres Approved
Collaborative Location/lead agency Project objective (millions) funding
----------------------------------------------------------------------------------------------------------------
Bruneau-Owyhee.................... Located in Idaho..... Treat conifer >1 $166,000
Lead: BLM............ encroachment to
benefit fire
resiliency and sage-
grouse habitat.
Greater Sheldon-Hart Mountain..... Located in parts of Focus on restoring ~4 3,984,250
Oregon, Nevada, sagebrush shrub and
California. native perennial
Lead: Service........ grass/forb
communities by
controlling juniper
expansion.
Southern Utah..................... Located in Utah...... Remove encroaching 7.4 2,605,000
Lead: BLM............ pinyon pine and
juniper, diversify
age class of
sagebrush
communities,
establish desired
understory to
restore resilience,
benefitting
sagebrush-dependent
wildlife.
-------------------------------
Totals........................ ..................... ..................... >12 6,755,250
----------------------------------------------------------------------------------------------------------------
State Fire Management Programs--Federal, State, and local land and
wildlife management agencies collaborate and work under national fire
guidance strategies to achieve common goals and objectives. Within the
Great Basin region, State Forest Action Plans address the coordinated
management of wildfire. State and local fire management agencies view
all wildfires as ``full suppression'' incidents, and make every effort
to suppress fires safely and quickly with a strong initial attack. Many
States have agreements with their neighboring States to ensure that a
rapid initial attack is possible, even if it is from a neighboring
State or jurisdiction. Additionally, they may utilize a ``unified
command'' concept to assist in coordination and cooperation (Havlina et
al. 2015, p. 26). Specific projects are detailed in the State Forest
Action Plans to reduce fuels, improve preparedness and initial attack
response, identify equipment and training needs, and ensure safe,
rapid, and aggressive response to wildfire ignitions, and address
rehabilitation of wildfire-damaged lands to mitigate the spread of
invasive plants (Havlina et al. 2015, pp. 25-27). For example, Utah's
Forest Action Plan (UDFFSL 2015; pp. 33-35) was updated in 2015 to
include five Sage-grouse Management Areas (SGMAs) (Box Elder, Bald
Hills, Sheep Rock Mountains, Hamlin Valley, and Ibapah) as high
priorities in the wildfire risk assessment and as part of the
Governor's Catastrophic Wildfire Reduction Strategy. Collectively,
these five SGMAs hold 26 percent of the sage-grouse in the State of
Utah (UDFFSL 2015, p. 35).
The Oregon State Plan recognizes wildfire as one of the most
significant impacts to sage-grouse and their habitat in Oregon and the
Great Basin. The Plan also recognizes the interrelated nature of the
threat from wildfire with the threats from nonnative annual grasses and
juniper encroachment. The Plan outlines more than 40 conservation
actions to address the impacts from wildfire, which are defined as any
activity or action which, when implemented or continued to be
implemented, will reduce potential threats to sage-grouse and will
improve or maintain healthy sagebrush-steppe habitat. These
conservation actions are categorized into four areas: Reducing wildfire
risk, wildfire suppression, building capacity and supporting local
efforts, and post-fire rehabilitation. All of the conservation actions
for wildfire are predicated on the FIAT as well as the Secretarial
Order, use data specific to Oregon, and are coordinated with the goals
and objectives of the BLM's Federal Plans as well as local
jurisdictions.
Local Fire Management Programs--Many communities throughout sage-
grouse habitat in the Great Basin have rangeland fire protection
associations
[[Page 59908]]
(RFPAs). The RFPAs are remotely located firefighting units staffed by
public volunteers. The RFPA volunteers are trained and equipped to
respond to wildland fires with the intent to control wildfires at the
smallest size that can be safely accomplished. Their location in remote
areas allows firefighters to access fires quickly, which increases
success of controlling fires before they grow in size, become more
challenging to suppress, and cause greater effects to sage-grouse. In
Oregon, 18 RFPAs have been created and currently field more than 600
volunteer fire fighters and more than 200 pieces of water-handling fire
equipment to protect more than 2 million ha (5 million ac) from
wildfire. In southern Idaho, there are currently seven RFPAs with 230
trained members who support wildland firefighters to protect more than
1.4 million ha (3.5 million ac) of the sagebrush ecosystem from
catastrophic wildfire. On June 23, 2015, Governor Brian Sandoval signed
emergency regulations related to the formation of RFPAs within the
State of Nevada (NRS 472 per AB 163, sec. 3.5(1) of the 78th Session of
the Nevada legislature).
Wildfire and Invasive Plants Summary
In 2010, we concluded that wildfire was one of the primary factors
linked to declines of sage-grouse due to long-term loss of sagebrush
and conversion of sagebrush habitats to invasive annual grasses. Loss
of sagebrush habitat to wildfire had been increasing in the western
portion of the sage-grouse range mainly due to an increase in wildfire
occurrence, intensity, and severity (Miller et al. 2011, p. 183). We
found this change to be the result of incursion of nonnative annual
grasses, primarily cheatgrass. The positive feedback loop between
cheatgrass and wildfire facilitates future fires and precludes the
opportunity for sagebrush, which is killed by fire, to become
reestablished. Cheatgrass and other invasive plants also alter habitat
suitability for sage-grouse by reducing or eliminating native forbs and
grasses essential for food and cover.
While the manner in which wildfire and invasive plants affect sage-
grouse has not changed since the 2010 finding, there has been a
significant change in the approach to rangeland firefighting and fuels
management to address these potential threats. Through development of
the FIAT, as well as the Secretarial Order, the BLM and USFS have
developed and implemented wildfire management strategies and actions
intended to reduce the impact of wildfire and invasive plants (BLM
2015h, entire). Similarly, a paradigm shift is occurring in the way
land managers and the larger conservation community approach invasive
plant control and in particular the relationship between invasive
plants and wildfire.
Without management, current burn rates would likely continue,
potentially impacting another 17 to 25 percent of the species' range
within the Great Basin over the next 20 to 30 years. If this level of
wildfire did occur, sage-grouse populations in the Great Basin could
decline 43 percent over the next 30 years (Coates et al. 2015, p. 32),
and some small populations could be extirpated. However, we expect that
the rates of wildfire and invasive plant habitat loss seen over the
past decades will be reduced by conservation efforts. The FIAT
assessments that are included in the Federal Plans and the actions
implemented under the Secretarial Order provide enhanced policies,
strategies, and tools for preventing and suppressing wildfire and for
restoring landscapes affected by fire across the Great Basin region.
Many of those measures are in place for the current fire season (DOI
2015a). As a result, sagebrush habitats will now be given priority
consideration in the treatment of fuels, the deployment of firefighting
resources, and the rehabilitation of burned areas. Much of that effort
will be focused in those areas most resistant to wildfire and invasive
plants, where more than half the breeding habitat in the Great Basin
occurs and where prevention and restoration projects are most likely to
be successful; this strategy is consistent with recommendations
provided in the COT report (USFWS 2013, pp. 40-42) and a recent study
of wildfire impacts over the next 30 years (Coates et al. 2015, p. 34).
Further, if wildfires do occur, monitoring of sage-grouse habitat and
population responses to that impact will occur so that other land use
activities can be adjusted, if necessary. In response to monitoring,
development allowable under the Federal Plans may be adjusted based on
adaptive management criteria to provide an immediate, corrective
response to any identified triggers for population or habitat declines.
While not directly related to habitat losses due to fire, these
provisions provide a backstop for other disturbance if adaptive
management triggers are exceeded. The continued long-term
implementation of these wildfire management strategies, in coordination
with the Federal Plans and Oregon State Plan (see Sagebrush Landscape
Conservation Planning for additional details) reduce the risk, or the
degree to which, fire and invasive plants are likely to impact sage-
grouse. We expect that the current management emphasis will reduce
future losses.
Grazing and Rangeland Management
In 2010, we evaluated the effect of grazing on sage-grouse
(including domestic livestock, free-roaming equids, and wild ungulates)
and concluded that improper grazing was likely having negative impacts
to sagebrush and sage-grouse at local scales, but that population-level
impacts were unknown. However, given the widespread nature of grazing,
the potential for population-level impacts could not be ignored (75 FR
13910, March 23, 2010, p. 13942). In this section we evaluate the best
available information on the impacts of livestock grazing on sage-
grouse and on conservation actions since 2010 intended to ameliorate
those impacts. We have no new information regarding impacts of native
ungulates on sage-grouse populations, which were not considered a
substantive threat in 2010; therefore, our analysis focuses exclusively
on domestic livestock grazing. The impacts on the species and its
habitat of free-roaming equid grazing are addressed in a separate
section of this document (see Free-Roaming Equids).
Improper grazing by domestic livestock during the late 1800s and
early 1900s, along with severe drought, affected sagebrush ecosystems
across the range of sage-grouse (Knick et al. 2003, p. 616). Improper
grazing, for the purposes of this assessment, is defined as grazing
practices that are inconsistent with local ecological conditions and
result in degradation of habitat for local wildlife species. This
historical improper grazing caused long-term changes in plant
communities and soils (Knick et al. 2003, p. 611). In low-elevation
Wyoming big sagebrush and low sagebrush habitat, improper grazing
reduced perennial herbaceous vegetation and caused high levels of
ground disturbance, which promoted the establishment of exotic annual
grass species such as cheatgrass (Mack 1981, pp. 148-152). In higher
elevation mountain big sagebrush habitat, improper grazing likely
reduced fine fuels and decreased fire frequency, resulting in the
expansion of fire-sensitive native conifers (Miller and Tausch 2001,
pp. 19-26). In both instances, these shifts in the vegetative community
have facilitated changes in the wildfire cycle, leading to loss of
sage-grouse habitat (see Wildfire and Invasive Plants, above).
[[Page 59909]]
Livestock grazing is currently the most widespread land use in the
sagebrush ecosystem and occurs in all MZs (Knick et al. 2011, p. 219;
Boyd et al. 2014, p. 62). Livestock grazing may positively or
negatively affect the structure and composition of sage-grouse habitat
(Factor A), depending on the intensity and timing of grazing and local
climatic and ecological conditions (Crawford et al. 2004, pp. 10-12;
Aldridge et al. 2008, p. 990; Boyd et al. 2014, p. 63). As a result,
drawing broad inferences regarding the current impact of grazing on
sagebrush habitats across the range of sage-grouse is difficult.
The total number of livestock that currently graze within sage-
grouse habitats is unknown. No rangewide data set is available
describing the level of livestock grazing that occurs on private lands
across the occupied range. Most grazing on Federal lands is managed by
BLM and USFS (GAO 2005, p. 5). The BLM and USFS index the number of
livestock grazed by Animal Unit Months (AUMs), which takes into account
both the number of livestock and the amount of time they spend on
public lands. An AUM is defined by BLM as the amount of forage needed
to sustain one cow and her calf, one horse, or five sheep or goats for
1 month. The number of AUMs allowed depends upon land health
assessments that evaluate the ecological condition of an area and its
ability to support grazing (BLM and USFS 2015, entire). The number of
AUMs permitted on Federal lands has gradually declined since the 1960s
(Mitchell 2000, pp. 64-68). This decline was concurrent with a decline
in productivity of western shrublands due to previous grazing history,
changes in soils and vegetation, or drought (Knick et al. 2011, p.
232). The reduction in AUMs permitted on public lands over time may not
translate to a reduction in the effects of grazing in sagebrush systems
(Knick et al. 2011, p. 232).
Properly managed grazing may benefit sage-grouse. Light to moderate
livestock grazing can help maintain perennial vegetation that provides
important food and cover for sage-grouse (Crawford et al. 2004, pp. 2-
12; Boyd et al. 2014, p. 63). It can also help control invasives and
woody plant encroachment, which may improve habitats and may reduce
wildfire risk (Connelly et al. 2004, p. 7-49; Boyd et al. 2014, p. 68).
The net impact of different use levels will vary in accordance with
climatic variability, local environment, and season of use (Crawford et
al. 2004, pp. 10-12). Implementing proper grazing practices that
maintain adequate residual grass height and cover under shrubs provides
for suitable cover and minimizes the negative effects of grazing on
sage-grouse productivity (Boyd et al. 2014, p. 64).
Alternatively, improperly managed grazing can have adverse impacts
to sage-grouse habitat. Improper grazing directly influences the
composition, productivity, and structure of herbaceous plants in
sagebrush plant communities (Boyd et al. 2014, p. 64), which in turn
influences the quality and quantity of food and cover for sage-grouse
(Fleischner 1994, pp. 633-635). By reducing protective vegetative
cover, improper grazing may make nesting and brood-rearing habitats
less suitable for sage-grouse. Sage-grouse rely on the cover of tall
grasses and shrubs to hide from predators, especially during the
nesting season, and females will preferentially choose nesting sites
based on the height of grasses and shrubs (Hagen et al. 2007, p. 46).
Grass height is a strong predictor of nest survival and hiding cover
can increase nest success, a key vital rate for sage-grouse (Doherty et
al. 2014, pp. 322-323). Loss of this hiding cover may increase
predation during nesting and brood-rearing, subsequently reducing
reproductive success rates (Gregg et al. 1994, p. 165). Maintaining
adequate residual grass height and cover under shrubs minimized the
negative effect of grazing on sage-grouse productivity (Boyd et al.
2014, p. 64).
Improper livestock grazing can reduce food available to sage-
grouse, which can impact reproductive success and chick survival
(Coggins 1998, p. 30; Aldridge and Brigham 2003, p. 30; Pederson et al.
2003, p. 43). Improper livestock grazing in mesic, brood-rearing
habitat may further reduce food resources by altering soils and
hydrology and reducing herbaceous plants (Braun 1998, p. 147; Dobkin et
al. 1998, p. 213). Improper livestock grazing may also reduce the cover
and height of sagebrush in key wintering habitats (Rasmussen and Griner
1938, p. 852), potentially affecting the condition and survival of
sage-grouse during the winter when resources are scarce. However,
implementing appropriate grazing practices can maintain habitat and
food resources for sage-grouse or, under very specific conditions,
improve conditions by stimulating succulent forb growth (Evans 1986, p.
67; Crawford et al. 2004, p. 12; Beck and Mitchell 2000, p. 997).
Beyond habitat impacts, improper grazing can also directly affect
sage-grouse (Factor E). Nearby livestock can cause females to flush
from their nests (Coates et al. 2008, p. 426), inadvertently revealing
the nest and its eggs to predators, such as ravens (Corvus corax)
(Coates 2007, p. 33) and the abundance of raven predators in sage-
grouse habitats may increase near livestock grazing (Coates et al., in
press). Livestock can trample or disturb nests (Crawford et al. 2004,
p. 12). However, no information is available about the extent these
potential impacts may be occurring across the occupied range. When they
do occur, adverse impacts are likely limited to the local population.
Construction and development associated with grazing, such as
watering developments and fences, can have a variety of impacts such as
habitat fragmentation and the facilitation of predators and disease.
There have been documented incidences of sage-grouse drowning in stock
tanks, which can have localized population-level effects (Boyd et al.
2014, p. 65), but the rangewide impact is unknown. Grazing management
that strategically considers placement and design of fences and
livestock water developments could protect other habitats by localizing
and minimizing the area of impact. In addition, the timing of water
diversions can minimize these impacts and provide mesic vegetation and
wet meadow habitats during critical brood-rearing periods when the
availability of succulent plants may be limited (Boyd et al. 2014, pp.
65-66).
Conservation Efforts
Since 2010, State and Federal agencies have worked collaboratively
to develop regulatory mechanisms to reduce or eliminate the impact of
improper livestock grazing on sage-grouse habitats. The BLM and USFS
amended or revised Federal Plans to set appropriate rangeland health
standards in sage-grouse habitats that are required to maintain a
Federal grazing permit. States developed and implemented State plans
that govern issuance of grazing permits on some State lands. Other
conservation efforts designed to improve grazing, including voluntary
efforts, are discussed below.
Federal Plans--The BLM and USFS are currently the principle land
managers within the range of the sage-grouse, and collectively manage
more than 98 percent of the livestock grazing on Federal lands (GAO
2005, p. 5). Nearly all federally owned sage-grouse habitat is managed
for livestock grazing (BLM and USFS 2015, entire). Grazing permits and
leases generally cover a 10-year period and are renewable if the BLM or
USFS determine that the terms and conditions of the expiring permit or
lease are being met (BLM and USFS 2015, entire). Permits include
standards and guidelines that describe specific conditions required to
achieve land
[[Page 59910]]
health and the recommended techniques to achieve these standards on
each allotment (Knick et al. 2011, p. 222; BLM and USFS 2015, entire),
as well as mandatory terms and conditions to ensure that land health
standards (LHS) are being met (43 CFR 4130). If LHS are not being met
or terms and conditions are not being followed, the BLM and USFS have
the authority to modify the terms and conditions of grazing permits to
correct any deficiencies, suspend the permit, or to revoke the grazing
permit entirely (33 CFR 222.4; 43 CFR 4180.2).
In our 2010 finding, we identified concerns with BLM and USFS
management of rangelands, contributing to our finding that regulatory
mechanisms were not sufficient (75 FR 13910, March 23, 2010, pp. 13975-
13980). Historically, not all allotments have been monitored to ensure
compliance with LHS and permit terms and conditions, and there was no
mandated prioritization of field checks to ensure compliance within
sage-grouse habitats. Between 1997 and 2007 the percent of allotments
monitored for LHS ranged from 22 percent to 95 percent across surveyed
States, with an overall average of 57 percent (Veblen et al. 2014, p.
72). Of the allotments monitored, 15 percent failed to meet LHS due to
improper livestock grazing (Veblen et al. 2014, p. 72).
The Federal Plans represent a major shift in grazing management and
monitoring since 2010, with respect to meeting LHS and sage-grouse
conservation objectives (BLM and USFS 2015, entire). The Federal Plans
manage grazing specifically for sage-grouse habitat objectives by
evaluating the numbers and distribution of livestock, evaluating
environmental conditions such as drought, closing or changing
allotments, managing riparian habitat for sage-grouse, and authorizing
water developments only if they would not adversely impact sage-grouse.
Specific grazing guidelines have been developed based on the best
available science and are applied in upland and riparian/wet meadow
habitats to maintain or achieve desired conditions of sagebrush, forbs,
and perennial grasses. Upland vegetation guidelines will be applied
seasonally and within 4 to 6.2 miles from leks, depending on site-
specific information. Riparian and wetland protective measures will be
applied in all sage-grouse habitat areas. Further, BLM directed
resources in 2015 to fund monitoring crews, and funded activities, like
data management, to ensure successful implementation of the monitoring
commitments (Lueders, BLM, 2015, pers. comm.). The President's Budget
request for BLM included 8 million dollars to directly support
monitoring the implementation and effectiveness of the land use plans
(BLM 2015d, p. II-5-6).
Given the large number of allotments across the occupied range, the
Federal Plans ensure that the most important habitats are prioritized
for protection. Permit review, renewal, and/or modifications occur
first in SFAs, followed by PHMA and allotments containing riparian
areas. The same prioritization is used for field checks to ensure
compliance with permit terms and conditions. In addition, the USFS
commits to modify grazing permit conditions and existing livestock
improvements within 2 years and mitigate any adverse effects from
grazing improvements within 5 years (BLM and USFS 2015, entire).
Progress at achieving rangeland health objectives at multiple spatial
scales is monitored by BLM and USFS using a habitat assessment
framework that provides a consistent approach and similar data set (BLM
and USFS 2015, entire).
The Federal Plans' vegetation standards and grazing management
measures are consistent with the best available science on sage-grouse
habitat needs and the COT report recommendations to minimize grazing
impacts (USFWS 2013). The Federal Plans also include monitoring
requirements and adaptive management that will ensure that the measures
will be effective for the long term and that grazing occurs at proper
levels for sage-grouse conservation. With changes in management
direction and immediate allocation of resources, full implementation of
the Federal Plans will, over time, address effects due to improver
grazing. As a result of the Federal Plans, and associated monitoring
commitments and adaptive management approach, the risk of improper
grazing occurring on Federal lands across the occupied range is greatly
reduced from 2010 levels.
State Plans--State plans in Montana and Wyoming include measures to
reduce the impact of improper grazing to sage-grouse on State-owned or
managed lands. Montana's State plan requires that State Trust grazing
lands maintain and improve sage-grouse habitat in core and connectivity
areas on State Trust lands in Montana (Montana EO 10-2014, pp. 7-17).
In addition, Montana's plan includes voluntary incentives to conserve
sagebrush habitats on private and State-owned lands in core and general
habitat areas (Montana EO 10-2014, pp. 7-27). Under the Wyoming Plan,
in order to receive a permit, new grazing operations on State Trust
Lands must demonstrate that they will not cause declines in sage-grouse
populations. While the amount of grazing on lands subject to these
State requirements and incentives is minimal compared to that on
Federal lands, these measures will reduce the potential for improper
grazing that could negatively affect sage-grouse.
Sage Grouse Initiative--Rangeland health inside PACs has been
improved through SGI practices by applying grazing systems, re-
vegetating former rangeland with sagebrush and perennial grasses, and
controlling invasives. To date, grazing systems have been implemented
on more than 985,000 ha (2.4 million ac); seeding projects have
occurred on more than 19,000 ha (over 48,000 ac); and weed management
projects were implemented on more than 6,000 ha (over 15,509 ac), and
restoring more than 70 ha (179 ac) of wet meadow (NRCS 2015a, p. 6). To
maximize conservation gain, SGI targets their efforts within PACs. Of
the more than 985,000 hectares (2.4 million acres) enrolled in grazing
systems, 76 percent are clustered within the following five
populations: Powder River Basin, Yellowstone Watershed, and the Dakotas
in MZ I; Wyoming Basin in MZ II; and Snake/Salmon/Beaverhead in MZ IV
(NRCS 2015a, p. 7). In addition more than 74 percent of the newly
seeded acres are concentrated in the following five populations:
Dakotas, and Yellowstone Watershed in MZ I; Northwest Colorado in MZ
II; and Northern Great Basin and Box Elder in MZ IV (NRCS 2015a, p. 7).
Although participation in SGI programs is voluntary, participants that
receive financial assistance enter into binding contracts or easements
to ensure that conservation practices are applied according to schedule
and in compliance with NRCS standards and specifications. As part of
implementation, the SGI includes a monitoring and evaluation component
that measures the response of sage-grouse populations and associated
vital rates in order to gauge effectiveness and provide an adaptive
management framework to SGI programs. For the private lands involved
with this program, SGI has removed the risk of habitat degradation due
to improper grazing through the implementation of accepted habitat
management tools, and restored previously affected habitat to benefit
sage-grouse.
Candidate Conservation Agreements--Lands currently enrolled in
CCAAs reduce the potential threat of improper grazing on private lands
through implementation of grazing management plans that we have
[[Page 59911]]
determined maintain or enhance habitat for sage-grouse. Approved
grazing management plans include measures concerning the types of
livestock and the appropriate timing, location, duration, and frequency
for grazing. All private lands within the species' range in Oregon and
Wyoming are eligible for enrollment in CCAAs. Rangewide, approximately
745,000 ha (1.8 million ac) of private lands have landowner commitments
in the programmatic CCAAs in Oregon and Wyoming. In addition,
approximately 1.4 million ha (about 3.5 million ac) are covered by CCAs
covering range management on BLM-administered lands in Oregon and
Wyoming, and covering maintenance operations on DOE lands in Idaho (BLM
2013a). The CCAs require the same conservation measures as the CCAAs,
including grazing management plans and habitat enhancement. These CCAAs
and CCAs are consistent with the recommendations of the COT Report
(USFWS 2013, p. 45) for conservation measures that will effectively
reduce impacts to sage-grouse.
Grazing and Rangeland Management Summary
Livestock grazing is the most widespread land use in the sagebrush
ecosystem, and impacts can be positive, negative, or neutral depending
on management practices and site-specific characteristics. Improper
grazing practices can have adverse effects to sage-grouse and its
habitat, and may work synergistically with other potential threats,
such as invasive plants and wildfire, to increase impacts. However,
well-managed grazing practices can be compatible with sagebrush
ecosystems and sage-grouse persistence. In 2010, we concluded that
grazing was likely having localized negative effects, but due to the
widespread extent of the activity, greater impacts were possible. Since
our 2010 finding, updated Federal Plans have been amended or revised in
the species' range to ensure that appropriate grazing prescriptions are
applied on Federal lands, covering more than half of the range of sage-
grouse. As discussed in the Federal Plans section above, monitoring and
adaptive management provisions within the Plans contribute to the
certainty that livestock grazing will be permitted at levels compatible
with sage-grouse persistence. Further, prioritization of field checks
and permit reviews provides additional assurances that these regulatory
mechanisms will be effective in those areas with the highest breeding
bird densities. Rangewide, the Federal Plans, along with the Wyoming,
Montana, and Oregon State Plans, reduce impacts from grazing to
approximately 90 percent of the modeled breeding habitat across the
species' range (see Sagebrush Landscape Conservation Planning for a
detailed discussion of conservation measure implementation and
effectiveness). In addition to these regulatory mechanisms on Federal
lands, SGI and State CCAAs provide well-coordinated programs to
encourage private landowners to address the impact of improper grazing
on non-Federal lands. Taken together, these conservation efforts reduce
the potential threat of improper livestock grazing from the levels
assessed in 2010. Therefore, we conclude that, although livestock
grazing is widespread in the sagebrush ecosystem, and we expect some
continued impacts from improper grazing at local scales, existing
Federal regulations with full implementation, in combination with
voluntary efforts on non-Federal rangelands are reducing the prevalence
of improper grazing and its impacts to sage-grouse.
Free-Roaming Equids
In 2010, we evaluated the effect of free-roaming equids (also known
as free-roaming horses and burros) on sage-grouse and concluded that
grazing (including grazing by free-roaming equids, native ungulates,
and livestock) can have negative impacts to sagebrush (Factor A) and
consequently to sage-grouse at local scales. Further, we concluded that
the impacts of grazing at large spatial scales, and thus on population-
levels, was unknown, but given the widespread nature of grazing, the
potential for population-level impacts could not be ignored (75 FR
13910, March 23, 2010, p. 13942).
Free-roaming horses (Eques cabalas) and burros (E. sinus) were
first brought to western North America in the late 16th century. A
number of equids subsequently escaped captivity or were released
forming free-roaming populations (Beever 2003, p. 888; Garrott and Oli
2013, p. 847). When the BLM began monitoring free-roaming equid
populations in the 1970s, they reported the total number of free-
roaming horses to be approximately 17,000 individuals, although some
believe this was an underestimate (BLM 2005a, p. 3). With protection
afforded by the Wild Free Roaming Horse and Burro Act of 1971 (Pub. L.
92-195) (Horse and Burro Act), the number of horses on public lands
rose sharply, and by 1980 the number of free-roaming equids had
increased to 65,000-80,000 animals (Beever 2003, p. 888, BLM 2005a, p.
3). Active management, starting in the 1980s, reduced free-roaming
equid numbers to more than 40,000 by 1999 and to about 37,186 in 2003
(BLM 2005a, p. 3).
The BLM and USFS manage free-roaming equids on Federal lands
according to the Wild Free-Roaming Horses and Burros Act of 1971. The
BLM's implementing regulations designated Herd Areas as places used as
habitat by a herd of free-roaming equids at the time the law was passed
(43 CFR part 4700). The BLM evaluated each Herd Area to determine if it
had adequate food, water, cover, and space to sustain healthy and
diverse free-roaming equid populations over the long term. The areas
that met those criteria were designated as Herd Management Areas
(HMAs). The BLM manages HMAs to maintain the appropriate management
level (AML) of free-roaming equids to be in balance with other public
rangeland species, resources, and uses in a given area. The USFS has
designated Territories for the management of free-roaming equids and
manages them in a similar way. The HMA/Territories currently overlap
with about 12 percent of the sage-grouse occupied range, primarily in
Oregon, Nevada, and Wyoming (Figure 8).
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[GRAPHIC] [TIFF OMITTED] TP02OC15.007
In 2010, the BLM estimated that 31,000 free-roaming equids were
found on BLM-administered lands (75 FR 13910, March 23, 2010, p.
13941). Currently, the BLM estimates 58,150 free-roaming equids (about
47,329 horses and 10,821 burros) exist on BLM-administered rangelands
in 10 western States, including two States outside the range of the
sage-grouse (BLM 2015e). In 2014, USFS estimated that, on lands it
manages, there are an additional 7,447 free-roaming equids (Shepherd &
Frolli 2015, BLM and USFS, pers. comm.). The number of free-roaming
equids on public lands has been over AML for more than 15 years (BLM
2014c, p. 1). The extent to which free-roaming equids occur on land
outside of designated Federal management areas is unknown.
The current population of free-roaming equids is estimated to be
nearly double the amount that the BLM and USFS have determined can
exist in balance with other public land resources and uses (BLM 2015e,
p. 1). Free-roaming equids reproduce rapidly and can have rates of
increase averaging 15 to 20 percent annually (BLM 2015e, p. 1).
Assuming a population of 45,000 animals and a 20 percent annual growth
rate, Garrott et al. (1991, p. 647) estimated that 9,000 horses must be
removed annually to maintain a stable population. The number of horse
and burro removals by BLM have not kept this pace in recent years, with
removals declining from 8,255 in 2012, to 4,176 in 2013, to 1,863 in
2014 (BLM 2015e, entire). At the same time, numbers of horses and
burros in BLM corrals and pastures is close to capacity (BLM 2015e,
entire).
Free-roaming equids' use of sagebrush landscapes have different
ecological consequences than livestock grazing at both local and
landscape scales due to biological and behavioral differences (Beever
2003, pp. 888-890; Beever and Aldridge 2011, p. 273). Equids are
generalists, but grasses comprise the majority of their diet throughout
the year (McInnis and Vavra 1987, p. 61). Because of physiological
differences, a horse forages longer and consumes 20 to 65 percent more
forage than a cow of equivalent body mass (Wagner 1983, p. 121; Menard
et al. 2002, p. 127). Unlike domestic cattle and other wild ungulates,
equids can crop vegetation closer to the ground, potentially limiting
or delaying recovery of plants (Menard et al. 2002, p. 127). Equids
tend to move to higher elevations in late spring until early fall,
which may increase the interactions with sage-grouse, as sage-grouse
often move to higher elevation communities to more mesic habitats with
forbs throughout the summer (Beever and Aldridge 2011, pp. 285-286).
Conversely, equids tend to spend less time at water, and range farther
from water sources than cattle (Beever and Aldridge 2011, p. 286).
Because of these differences, greater habitat impacts occur when both
horses and cattle are present, compared to when only cattle are present
(Beever and Aldridge 2011, p. 286).
As with all herbivores, equid effects on ecosystems vary markedly
with elevation, density, season, and duration of use (Beever and
Aldridge 2011, p. 273). In some contexts, equid grazing can reduce
shrub cover as equids trample, rub against, and consume shrubs (Plumb
et al. 1984, p. 132; Beever et al. 2003, pp. 119-120; Beever et al.
2008, p. 180). Equid grazing has also been associated with reduced
plant diversity, altered soil characteristics, lower grass cover, lower
grass density, and 1.6 to 2.6 times greater abundance of cheatgrass
(Beever et al. 2008, pp. 180-181). Sage-grouse need grass- and shrub-
cover for protection from predators, particularly during nesting season
(Connelly et al. 2000a, pp. 970-971). Reduction in shrub and grass
cover can result in increased predation pressure on both nests and
birds. The greatest risk of adverse effects to habitat occurs in the
areas with large numbers of horses over AML; the area of greatest
concern is Nevada (MZs III, IV, and V)
[[Page 59913]]
where free-roaming equid populations are estimated to be more than
twice AML.
In addition to adverse effects in sagebrush habitats, free-roaming
equids can also negatively affect important meadow and brood-rearing
habitats that provide forbs and insects for chick survival (Beever and
Aldridge 2011, p. 277; Crawford et al. 2004, p. 11; Connelly et al.
2004, p. 7-37), as streams and springs within sagebrush ecosystems
receive heavy use by horses (Crane et al. 1997, p. 380; Beever and
Brussard 2000, pp. 243, 246-247). Brood-rearing habitat is often
limited in availability compared to other sage-grouse habitats;
therefore, any impacts to these areas can adversely affect local
populations (NRCS 2015a, p. 44).
Conservation Efforts
Wild Free-Roaming Horses and Burros Act of 1971--The Wild Free-
Roaming Horses and Burros Act of 1971, as amended, charges the BLM and
USFS with managing wild [free-roaming] equids to achieve a thriving
ecological balance with the land (Pub. L. 92-195). The BLM and USFS
manage free-roaming equids by conducting surveys, administering
fertility control drugs, gathering excess horses, and facilitating
adoptions (National Academy of Sciences 2013, pp. 55-73). The BLM plans
gathers based on population estimates and vegetation monitoring, but
takes into account issues such as areas where equids have moved onto
private property or severe local conditions are affecting the health of
the herd. The scheduled gathers may be influenced by court orders or
emergency situations. Planned gather numbers are based on the available
space in holding facilities, anticipated adoptions, and budgets (BLM
2015e, p. 1).
Management of herd size by Federal agencies is an ongoing
challenge. Free-roaming equid populations grow rapidly, and in most
areas, they have no natural predators (National Academy of Sciences
2013, p. 1). The Wild Free-Roaming Horses and Burros Act (Pub. L. 92-
195) requires that free-roaming equid populations be managed at
appropriate management levels, and allows for the removal of excess
animals for adoption, sale, or destruction. Free-roaming equid
management is expensive and often controversial, sometimes limiting
options to manage free-roaming equids at appropriate levels (National
Academy of Sciences 2013, pp. 1-2).
Federal Plans--The Federal Plans address the impacts of free-
roaming equids by prioritizing management in areas most important for
sage-grouse conservation (BLM and USFS 2015 entire). Management actions
are prioritized for SFAs and PHMAs, and are managed for AML. Rangeland
health assessments will be conducted in PHMAs and SFAs, and herd
management area plans (HMAPs) will be amended to incorporate sage-
grouse habitat objectives. The plans provide that, if needed to achieve
AML and sage-grouse habitat objectives, gathers and population growth
suppression techniques would be utilized in prioritized areas.
Additionally, if needed, free-roaming equids would be removed or
excluded from areas following emergencies, such as wildfire or drought.
Further, monitoring and adaptive management criteria provide an
additional layer of management to address species or habitat declines
regardless of the sources of the impact. The BLM has committed to
completing the actions within SFAs in the next 5 years; free-roaming
equid management in PHMAs will be the next priority after SFAs (BLM
2015h, entire; DOI 2015a, p. 3).
The Federal Plans' direction to manage free-roaming equid
populations at appropriate levels reduces impacts from free-roaming
equids into the future. The inclusion of sage-grouse objectives in
HMAPs ensures that future decision making is done with consideration of
sage-grouse ecological needs. Managing SFAs and PHMAs at AML
substantially reduces the potential for habitat degradation in those
areas. Based on past BLM and USFS plans and planning efforts, we expect
the Federal Plans, including these free-roaming equid measures to be
implemented for the next 20 to 30 years.
Sheldon-Hart Mountain National Wildlife Refuge Complex--The Hart
Mountain National Wildlife Refuge (NWR) removed free-roaming equids and
cattle in the 1990s. Cattle were also removed from the Sheldon NWR in
the 1990s. The last gather to remove all equids from Sheldon NWR
occurred in the fall of 2014 (Collins, USFWS, pers. comm. 2015).
Recovery of plant communities in sagebrush ecosystems, aspen woodlands,
and riparian habitats have been documented since these removals (Earnst
et al. 2012, entire; Davies et al. 2014, entire; Batchelor et al. 2015,
entire). Together, free-roaming equid and livestock removals from
Sheldon-Hart Mountain NWR have improved conditions for 9.1 percent of
the sage-grouse modeled breeding habitat in MZ V. This area has been
identified as important to long-term sage-grouse viability due to the
high density of breeding birds and the connectivity to adjacent
populations (USFWS 2014a, entire).
Candidate Conservation Agreements--CCAAs and CCAs, which together
can cover up to about 1.4 million ha (3.5 million ac) in Oregon,
include conservation measures for free-roaming equids. To date,
approximately 745,000 ha (1.8 million ac) are currently enrolled in
CCAAs rangewide. Measures include monitoring of free-roaming equid
impacts in sage-grouse habitat and reporting to BLM for consideration
of horse and burrow relocation (USFWS 2014d, p. 52; USFWS 2015b, p. 55;
USFWS 2015c, p. 53; USFWS 2015d, p. 54; USFWS 2015e, p. 53; USFWS
2015f, p. 54). Although not regulatory in nature, these measures will
assist BLM in their management of free-roaming equids.
Free-Roaming Equid Summary
In our 2010 finding, we reported that approximately 36,000 free-
roaming equids occurred in 10 western States (including 2 States
outside the range of sage-grouse) and HMAs/Territories occupied
approximately 12 percent of the range of sage-grouse. The number of
free-roaming equids has increased since 2010, with about half occurring
in Nevada where estimated free-roaming equid population levels are
twice AML. Since our 2010 finding, the Federal Plans provide a suite of
actions that, with full implementation, will manage free-roaming equids
to substantially reduce potential impacts to sage-grouse, as
recommended by the COT Report (USFWS 2013, pp. 46-47). Some localized
degradation of habitat will likely continue, particularly in Nevada, as
implementation of these actions will take time. However, full
implementation of the measures outlined in the Federal Plans will
reduce impacts in the most important areas for sage-grouse (see
Sagebrush Landscape Conservation Planning for a detailed discussion of
conservation measure implementation and effectiveness). Important
habitats that are designated as SFAs will receive priority management
to reduce wild-equid population levels that can exist in the sagebrush
ecosystem without adverse effects to sage-grouse habitats (BLM 2015h,
entire). In addition, conservation efforts directed at these issues
have been implemented on other lands since 2010, most notably the
removal of horses from Sheldon NWR in 2014, which provides habitat for
an important breeding bird stronghold. As a result, while some
localized impacts to habitat are likely to continue in the near future,
management measures by the BLM and USFS substantially reduce
[[Page 59914]]
the impact of free-roaming horses and burros across the range of the
species.
Conifer Encroachment
In 2010, we evaluated the effect of pinyon juniper encroachment and
concluded that it contributed to habitat fragmentation, particularly in
the Great Basin portion of the range. Pinyon and juniper and some other
native conifers were expanding due to decreased fire-return intervals,
livestock grazing, and increases in global carbon dioxide
concentrations associated with climate change, among other factors. The
2010 finding recognized the potential value of conifer removal
treatments, particularly when done in the early stages of encroachment
when sagebrush and forb understory is still intact (75 FR 13910, March
23, 2010).
Prior to 1860, two-thirds of the Great Basin was treeless and
occupied by sagebrush ecosystems (Miller et al. 2008, p. 13), but since
that time the extent of pinyon-juniper has increased ten-fold (Miller
and Tausch 2001, pp. 15-16). Based on 1999-2012 imagery (LANDFIRE
1.3.0), approximately 4.7 million ha (more than 11.5 million ac) of
conifer woodlands occur within the current range of sage-grouse,
comprising more than 6 percent of the current occupied range. Conifer
encroachment is of greatest concern in MZs III, IV, and V, but is
present at least locally in all MZs (USFWS 2013, pp. 23-36).
Conifer expansion presents a stressor to sage-grouse because sites
invaded by conifers do not provide suitable sage-grouse habitat (Factor
A). For example, when juniper increases in mountain big sagebrush
communities, shrub cover declines and the season of available succulent
forbs is shortened due to soil moisture depletion (Crawford et al.
2004, p. 8). Sage-grouse have been found to avoid areas where conifers
have encroached (Doherty et al. 2010b p. 1547; Casazza et al. 2011, p.
163; Baruch-Mordo et al. 2013, p. 239). Trees may also offer perch
sites for avian predators, potentially increasing the predation risk
(see Predation, below).
The extent of conifers within the species' range is anticipated to
expand in the future unless effectively treated. Rangewide, 6 to 13
percent of sage-grouse habitat may be at risk of conifer encroachment
(Manier et al. 2013, p. 92). The most pronounced risks are across the
Great Basin (Manier et al. 2013, p. 92) where approximately 35 percent
of sagebrush habitat is estimated to be at high risk of alteration by
pinyon-juniper in 30 years, 6 percent at moderate risk, and 60 percent
at low risk (Connelly et al. 2004, pp. 7-8 to 7-14). While pinyon-
juniper expansion appears less problematic in the eastern portion of
the range (MZs I, II and VII) and silver sagebrush communities
(primarily MZ I), conifer encroachment is an impact mentioned in
Wyoming, Montana, and Colorado State sage-grouse conservation plans,
indicating that this is of some concern in these States as well (Stiver
et al. 2006, pp. 2-23). Based upon current habitat information,
approximately 10 percent of the occupied range in the Great Basin and 2
percent of the occupied range in the Rocky Mountains are impacted by
conifer encroachment (USFWS 2015a). Efforts are under way to more
precisely identify areas at risk of conifer encroachment; that
information is currently unavailable, but will help target removal
efforts in the future. Conifer encroachment rates have been estimated
between 0.4 and 4.5 percent annually (Sankey and Germino 2008, p. 413).
Encroachment rates are predicted to increase with long-term changes in
climate (see Climate Change and Drought, below; Neilson et al. 2005
cited in Miller et al. 2011, p. 145).
Miller et al. (2005, p. 24) characterized three stages of woodland
succession: Phase I, where conifer are present but shrubs and
herbaceous species remain the dominant vegetation that influence
ecological processes (e.g., hydrologic, nutrient and energy cycles);
Phase II, where conifer are co-dominant with shrubs and herbaceous
species, resulting in modifications of ecological processes; and Phase
III, where conifer becomes the dominant species, with reduced shrub
canopy cover and herbaceous species diversity. Approximately 80 percent
of sites invaded by conifers are still in Phase I and Phase II, where
some native shrubs and bunchgrasses are present (Miller et al. 2008, p.
9). Transition of sagebrush habitats from Phase II to Phase III is of
particular concern because treatment options become more limited in
Phase III (Johnson and Miller 2006, p. 8). Without intervention, 75
percent of conifer encroachment in the western portion of the sage-
grouse range may transition into Phase III within the next 30-50 years
(Miller et al. 2008, p. 12).
Conservation Efforts
Since 2010, considerable effort has been undertaken to remove
conifers, thus reducing the impacts of conifer encroachment to sage-
grouse habitat. Federal Plans and State Plans provide commitments to
reduce conifer encroachment. The SGI has been actively treating conifer
encroachment on private lands across the species' range. Lastly,
private land owners have pursued conifer removal projects, including
commitments associated with enrollment in CCAAs.
The effectiveness of these current and planned treatments varies
with the technique used and proximity of the site to invasive plant
infestations, among other factors (Knick et al. 2014, p. 553). The
plant-community response to these treatments is not always consistent
or predictable, and succession may not move in a desirable direction
following treatment (Miller et al. 2014, entire). Areas treated for
conifers have the greatest likelihood of sage-grouse using them after
treatment when implemented in areas still containing some sagebrush,
near mesic habitats, and near sage-grouse populations (Cook 2015, p.
96). Sage-grouse appear to be more likely to use treated areas when
suitable habitat is limited in an area (Frey et al. 2013, pp. 269-270).
We are not aware of any study documenting a direct correlation between
conifer treatments and sage-grouse population response. Successful
treatment of conifers in the future requires targeted management of
conifers in the most important habitats for sage-grouse.
Sage Grouse Initiative--Most of the conifer treatments completed to
date have been accomplished on private lands by the SGI. Since 2010,
SGI has removed conifers from 163,995 ha (405,241 ac) primarily in
Phase I and II encroachment areas in the Great Basin (MZs III, IV, V)
(NRCS 2015a, p. 7). Eighty-four percent of these treatments occurred in
PACs in the Great Basin. Nearly half of these acres are in Oregon (MZ
V), where conifer encroachment was reduced by 68 percent on private
lands (NRCS 2015a, p. 2). The SGI in Oregon targeted conifer removal in
PACs near active leks and other occupied seasonal habitats (NRCS 2015a,
p. 18). SGI will invest an additional 80 million dollars over the next
3 years to implement restoration and enhancement projects on
approximately 1.4 million ha (3.4 million ac), including conifer
treatment projects (NRCS 2015a, p. 29; NRCS 2015b, p. 6). Given the
past accomplishments and the continued dedication of NRCS to sage-
grouse conservation, we are confident that these investments in conifer
treatments will continue.
Candidate Conservation Agreements--Approximately 745,000 ha (1.8
million ac) are currently enrolled in CCAAs rangewide. Lands enrolled
in CCAAs require removing undesirable conifers/junipers encroaching
into sage-grouse habitats (USFWS 2014d, p. 47; USFWS 2015b, p. 50;
USFWS 2015c, p. 48; USFWS 2015d, p. 49; USFWS 2015e, p. 48; USFWS
2015f, p. 49).
[[Page 59915]]
Federal Plans--The Federal Plans completed in 2015 include
commitments to remove conifers through implementation of the FIAT. The
FIAT assessments include treatment schedules for mechanical and
prescribed fire removal. Conifer removal is prioritized in areas
closest to occupied sage-grouse habitat and where juniper encroachment
is in Phase I or Phase II. Cumulatively, the FIAT step-down assessments
identify approximately 3 million ha (7.4 million ac) of conifer
treatments for five priority landscapes (i.e., Central Oregon, Northern
Great Basin, Snake/Salmon/Beaverhead, Southern Great Basin, and Western
Great Basin/Warm Springs Valley) in the Great Basin region (MZs III,
IV, and V).
Conifer Encroachment Summary
The potential threat of conifer encroachment has changed since the
last status review. In 2010, we found habitat fragmentation, due in
part to conifer encroachment, to be a threat to the species; regulatory
mechanisms and conservation efforts were insufficient to address this
threat. Based on past trends and the current distribution of pinyon-
juniper relative to sagebrush habitat, we anticipate that expansion
will continue at varying rates across the landscape and cause further
loss of sagebrush habitat. However, projects to remove conifers near
sage-grouse habitat have been implemented for PACs, and regulatory
measures included in Federal and State plans have resulted in a
paradigm shift in land management objectives and practices that will
further reduce conifer impacts on sage-grouse and sagebrush habitat.
The Federal agencies have committed to continue conifer removal
projects in the most important habitats identified in the COT Report
(USFWS 2013, pp. 16-29) and the FIAT Assessments (BLM 2015a, entire).
For a detailed discussion of conservation measure implementation and
effectiveness, see Sagebrush Landscape Conservation Planning.
Mining
In 2010, we evaluated mining as part of the energy development
assessment and concluded that energy projects contributed to habitat
loss and fragmentation. Mining was identified as occurring across the
species' range, but was most prevalent in Nevada (MZs III, IV, and V)
and Wyoming (MZs I and II). At that time, regulations addressing
effects from mining were determined to be inadequate. As a result, the
2010 finding concluded that habitat loss and fragmentation, caused in
part by mining and inadequate regulatory mechanisms, were significant
threats to the species such that listing was warranted under the Act
(75 FR 13910; March 23, 2010).
Mining has occurred throughout the range of sage-grouse since the
mid-1800s (Nevada Mining Association 2015), and mining in sagebrush
habitats continues today (American Mining Association 2014). Mining is
generally divided into three categories, based on the type of mineral
extracted: Locatable, leasable, and salable minerals (BLM 2015f, p. 1).
Additionally, each of these mining categories has its own specific
regulations. Locatable minerals are hard rock minerals whose extraction
is subject to the General Mining Law of 1872, such as gold, silver, and
copper. Leasable minerals include resources such as coal, oil, and gas.
Saleable minerals are more common, lower value resources, such as sand
and gravel (BLM 2015f, p. 1). The extent of mining for any individual
mineral varies widely, as does the size and activity of individual
mines, making generalizations of impacts difficult.
Consistent with our 2010 finding (70 FR 13910, March 23, 2010, pp.
13948-13949), we do not have a comprehensive dataset about existing and
proposed mining activity to do a quantitative analysis of potential
impacts to sage-grouse. In 2010, we were aware of approximately 25,500
ha (63,000 ac) of existing mining-related disturbance within the range
of sage-grouse; those mining projects and associated impacts are likely
continuing today. These projects likely removed sagebrush habitat when
first implemented (70 FR 13910, March 23, 2010, pp. 13948-13949) and
continue to have indirect effects to sage-grouse populations near the
project sites through disturbance from noise, human presence,
equipment, and explosives (Moore and Mills 1977, entire). Overall, the
extent of these projects directly affects less than 0.1 percent of the
sage-grouse occupied range. Although direct and indirect effects may
disturb local populations, ongoing mining operations do not affect the
sage-grouse rangewide.
Currently, surface and subsurface mining activities are conducted
in all 11 States within the sage-grouse range (Minerals Education
Coalition 2015; National Mining Association 2014a BLM 2011, entire).
Minerals are not distributed evenly across the sage-grouse landscape,
and as a result, mining activities tend to be localized or regional.
Coal is primarily found in the Rocky Mountain States, while lithium has
been mined exclusively in Nevada (although a more recent discovery has
been made in southwestern Wyoming) (Mining.com 2014). Precious metals,
while being mined to some degree in all 11 States across the sage-
grouse range, primarily occur in Nevada and Colorado (USGS 2013).
By reducing and fragmenting habitats and disturbing individual
sage-grouse, mining can directly or indirectly affect sage-grouse.
Surface and subsurface mining can reduce sagebrush habitat, ranging
from potential losses of many thousands of hectares at large industrial
mines to 4 ha (10 ac) or less at smaller mining operations (Factor A).
Habitat loss and fragmentation could preclude movements of sage-grouse
between seasonal habitats (Connelly et al. 2011a, pp. 82-83; Knick and
Hanser 2011, entire). In addition, indirect effects associated with
mining include disturbance from increased human presence, traffic,
blasting, reduced air quality, noise, increased dust, and an increased
abundance of human-associated predators (Factor E) (Moore and Mills
1977, entire; Brown and Clayton 2004, p. 2). Mining operations can also
contaminate water sources in sage-grouse habitats (Moore and Mills
1977, pp. 115, 133; Adams and Picket 1998, p. 486; Ramirez and Rogers
2002, pp. 434-435). Settling ponds near mines could also provide
breeding areas for mosquitos and increase the risk of WNv (Walker and
Naugle 2011, p. 132).
Projections of future mining activities are difficult, as market
prices for any specific mineral commodity vary greatly. The overall
extent of mining activities in the United States has remained fairly
consistent over the past 5 years (National Mining Association 2014b, p.
1), although coal production, including the number of coal mines,
within the range of sage-grouse has generally declined since 2008 (EIA
2015, p. 93). We anticipate that some amount of mining will occur
within the range of the sage-grouse indefinitely, depending on the
extent of the desired mineral resource, development of new mining
techniques, and market conditions. Conservation efforts are discussed
below.
Conservation Efforts
Since 2010, a number of landscape-scale efforts have been
undertaken to reduce impacts to sage-grouse across the range, including
habitat loss and fragmentation from mining. The Federal Plans are the
primary tools for managing mining impacts to sage-grouse. State plans
in Wyoming and Montana include regulatory mechanisms to address impacts
from mining. These conservation efforts are consistent with the
recommendations in the COT Report (USFWS 2013, p. 49). The Federal and
State plans, as well as individual efforts
[[Page 59916]]
reported to the CED, are discussed in detail below.
Federal Plans--In the United States, mining activity is authorized
under an array of statutes affecting resources administered or leased
by the BLM, both on federally administered lands as well as other lands
where mineral rights have been reserved to the United States (i.e.,
split-estate lands). The BLM's statutory and regulatory authority
depends upon the nature of the mineral deposit (i.e., leasable,
salable, or locatable). The General Mining Law of 1872 called for all
locatable mineral deposits on Federal lands to be free and open to
exploration and purchase (BLM 2011c, p. 3), limiting the ability to
manage these activities for sage-grouse conservation. Only areas that
have been withdrawn to mineral entry by a special act of Congress,
regulation, or Secretary of the Interior public land order are truly
closed to locatable mineral entry. Coal is administered by the Office
of Surface Mining Reclamation and Enforcement, which in turn may
delegate their authority to the States.
The majority of mining activity within the sage-grouse range occurs
on Federal lands where the Federal Plans direct the management of
mineral development (BLM and USFS 2015, entire). Except in Wyoming, all
PHMA is closed to new mineral material sales and leasable mineral
operations, with exceptions for Free Use Permits and the expansion of
existing operations. Free Use Permits allow governmental agencies and
nonprofit organizations to extract and use mineral materials for up to
10 years (BLM 2013b, p. 1). Any proposed expansion of existing mining
operations in PHMA would require design features to minimize impacts
and would require mitigation of any impacts. Wyoming remains open to
new mining activities within PACs, but those activities are restricted
by a disturbance and density cap as per the Wyoming Plan (see Wyoming
State and Federal Plans, above).
The Federal Plans designate the most important sagebrush habitat as
SFAs where locatable mineral withdrawal is recommended, except in
Wyoming where only a portion is recommended for withdrawal. For
proposed coal projects, the BLM will determine at the time of a new
lease if an area is suitable for development. During that evaluation,
PHMA will be considered essential for sage-grouse conservation,
ensuring that decisions are made with consideration of sage-grouse
conservation needs. General sage-grouse habitats (GHMA) are open to
mineral development, but are subject to stipulations designed to
protect sage-grouse. In addition to these mining-specific measures, no
discretionary anthropogenic activities in PHMA would be allowed to
impact more than 3 percent (or 5 percent in Wyoming and Montana) of the
total sage-grouse habitat within a Biologically Significant Unit (BSU).
Any authorized activities that result in loss of sage-grouse habitat
would require mitigation in an amount or manner that results in a net
conservation benefit to the species. Further, in response to
monitoring, activities allowable under the Federal Plans may be
adjusted based on adaptive management criteria to provide an immediate,
corrective response to identified triggers for population or habitat
declines. Due to limitations explained above, the disturbance caps may
have limited applicability to some types of mining activities, but do
place limits on other disturbance if adaptive management triggers are
exceeded.
These measures reduce potential mining impacts to sage-grouse on
approximately 14 million ha (35 million ac) of PHMA. The restrictions
on leasable and salable mining in PHMA eliminate nearly all potential
habitat loss associated with those activities. To the limited extent
those activities could occur in PHMA, design features would be required
to minimize disturbance, and mitigation would be required for any
impacts. The laws governing locatable mineral development and coal
mining limit the ability to completely remove this threat from PHMA.
Locatable mineral development is likely to continue in the future, but
it is difficult to know the location or extent of future mining
activity within the range of sage-grouse. The SFAs contain the habitats
and populations most important to the long-term conservation of the
species and needing protection from future mining impacts, and at this
time we are currently unaware of planned mining activity in these areas
that rise to the level of causing population-level impacts to sage-
grouse.
Within the areas of greatest conservation importance (SFAs), DOI
will recommend withdrawal from locatable mineral entry. We support the
recommendations for mineral withdrawal in SFAs that would remove
potential impacts on approximately 4 million ha (10 million ac) of
sage-grouse habitat. In Wyoming, the BLM adopted the State strategy,
which has proven to be effective in directing activities outside of
habitat and limiting impacts when they do occur (see State Plans,
below). These measures minimize mining impacts in priority habitats for
the life of the management plans, estimated to be the next 20 to 30
years. Based on what we know today, no mining activities are likely to
result in loss of these important areas for conservation, but we
recognize that economic changes or technological advances may increase
the risk of development in the future. Therefore, the long-term
protection of the sage-grouse habitat in the SFAs from locatable
mineral development will ensure that these important populations are
conserved into the future.
State Plans--State plans in Wyoming and Montana include regulatory
mechanisms that reduce impacts to sage-grouse from mining on applicable
lands. The Wyoming and Montana Plans include controlled surface use,
lek buffers, and seasonal and noise restrictions to reduce impacts in
Core Areas (Montana EO 10-2014, pp. 14-19; Wyoming EO 2015-4, entire).
The States also implement Federal regulations for coal mining. Coal
mining is regulated by the Surface Mining Control and Reclamation Act
of 1977 (SMCRA), which is implemented by the Office of Surface Mining
and Reclamation. This Federal law requires consideration of fish and
wildlife resource information for the permit and adjacent area, along
with a detailed analysis by the permittee on how impacts will be
minimized or avoided. Permittees must also include a plan for
enhancement of fish and wildlife resources on the permit area. The OSM
has delegated the regulatory authority for implementing the SMCRA to
five States within the range of sage-grouse: Wyoming, Montana, Utah,
Colorado, and North Dakota. Sage-grouse, therefore, must be considered
in the implementation of the SMCRA, and coal mining, in those States.
The implementation agency must consider impacts on fish and wildlife,
including sage-grouse. Sage-grouse are also typically addressed in all
States within its range during the development of coal resources simply
due to its status as a State trust resource.
Mining Summary
The impacts of mining have been reduced since the last status
review. In 2010, we concluded that habitat fragmentation, due in part
to mining, was a significant threat to the species, and regulatory
mechanisms were not sufficient to address the threat. The scattered
nature and intensity of mining, coupled with market uncertainty, makes
it difficult to accurately predict impacts to sage-grouse on a
rangewide basis. If future locatable mineral development occurred, it
could have local impacts to leks and populations. This type of mining
impact is most likely to occur in
[[Page 59917]]
Nevada where locatable mineral development has occurred the most
historically; however, predictions of future mining activities would be
speculative. The regulatory mechanisms in the Federal and State Plans
will be effective in reducing potential mining impacts on State owned-
lands, and in the case of Wyoming and Montana, in Core Areas.
Controlled surface use directs activities outside of sage-grouse
habitat to minimize the potential for habitat loss and fragmentation.
Indirect impacts from human activity, noise, and traffic are reduced by
lek buffers and seasonal and noise restrictions. When mining does
occur, disturbance caps ensure that no more than 3 percent of the
habitat in an area is impacted in most areas, and no more than 5
percent in Wyoming and Montana. Collectively, the Federal and State
plans reduce impacts related to various types of mining on 90 percent
of sage-grouse breeding habitat (see Sagebrush Landscape Conservation
Planning for a detailed discussion of conservation measure
implementation and effectiveness).
Renewable Energy
In 2010, we evaluated the impacts of renewable energy development
(wind, solar, and geothermal) on sage-grouse, and concluded that it was
a threat to the species (75 FR 13910, March 23, 2010, pp. 13949-13954).
At that time, renewable energy development was increasing across the
species' range, and regulatory mechanisms were inadequate to address
impacts to the species.
Development of commercially viable renewable energy continues to
increase across the sage-grouse range (EIA 2015, entire; DOE 2014,
entire). Studies examining the impacts of renewable energy development
on sage-grouse populations are limited. Renewable energy facilities
typically require many of the same features for construction and
operation as do nonrenewable energy resources, and, therefore, we
anticipate their impacts will be similar. These include direct habitat
loss and habitat fragmentation (Factor A) through construction and
operation of an energy facility, and indirect effects resulting from
the presence of power lines, human activity, introduction of invasive
plants and novel predators, and noise (Connelly et al. 2004, pp. 7-40
to 7-41; Holloran 2005, p. 1; Pruett et al. 2009, p. 1258; Patricelli
et al. 2013, p. 231; Howe et al. 2014, p. 46; see Nonrenewable Energy,
Mining, and Infrastructure).
Given the incentives provided by the Energy Policy and Conservation
Act, and State mandates, we anticipate the development of commercially
viable renewable energy will continue into the future. However, since
2010, conservation efforts have been implemented to direct the location
of development to reduce renewable energy impacts across the occupied
range of the species. The potential future extent and impacts of the
three primary kinds of renewable energy within the occupied range of
sage-grouse (wind, solar, and geothermal) are discussed further below,
as well as the conservation efforts that ameliorate the effects.
Wind
Wind energy development is facilitated by Federal and State energy
laws and policies that encourage its development. In 2008, the DOE
issued an initiative to increase wind energy production by 20 percent
by 2030 (DOE 2014, entire). Idaho and California provide tax incentives
and loan programs for renewable energy development (State of Idaho
2015; California Energy Commission 2015), and Colorado and Nevada have
laws requiring increased renewable energy production (AFWA and USFWS
2007, p. 8; Nevada Public Utilities Commission 2015). With the advent
of Federal tax credits for wind energy facilities, wind development
increased 20 percent in 2013 (Esterly and Gelman 2013, p. 3).
The current amount of implemented wind development within the
species' occupied range is low. A geospatial assessment of currently
implemented projects reveals that, within the species' occupied range,
about 1,400 ha (3,500 ac) have been impacted by wind energy
development; these projects occur in MZs I, II, III, and IV and impact
less than approximately 0.002 percent of the occupied range (USFWS
2015a). The BLM has issued several ROWs in support of continued and
future wind development that may influence sage-grouse habitats, but
actual development of these ROWs into commercial facilities is not
certain (Manier et al. 2013, p. 61).
Wind energy has the potential for development throughout the sage-
grouse's occupied range. The National Renewable Energy Laboratory has
modeled and mapped the wind resources in each of the States and
classified the potential for wind power generation. All MZs contain
areas where wind resources have been identified as economically
developable over the next 20 years. More than 14 percent of the sage-
grouse occupied range has high potential for commercial wind power,
with MZs I and II having the greatest potential (BLM 2005b, p. 5-103;
NREL 2014, p. 2). In a separate assessment, the BLM estimated that 600
km\2\ (232 mi\2\) of BLM-administered lands could be developed within
the sage-grouse's range before 2025 (BLM 2005b, pp. ES-8, 5-2). We are
aware of four preliminary, planning-stage wind project proposals in
Montana (MZ I) that may encroach into sage-grouse habitat (USFWS
2015a). Adverse impacts to sage-grouse could occur if these projects
were implemented, but whether or not these proposals may be further
refined, or even constructed, is unknown.
Wind development projects can have a variety of direct and indirect
impacts to sage-grouse (LeBeau et al. 2014, entire). Habitat loss and
fragmentation can occur from the construction of wind farms and
associated facilities such as power lines, roads, power substations,
meteorological towers, and work facilities (BLM 2005b, pp. 3.1-3.4).
Sage-grouse, similar to other lekking birds, have been found to avoid
human-made structures such as power lines and roads (e.g., Holloran
2005, p. 1; Pruett et al. 2009, p. 1258). Wind power facilities may
provide perches and subsidized food that attracts predators and
increases predation on sage-grouse (LeBeau et al. 2014, p. 528). Noise
from turbines or associated human activities may interfere with normal
foraging, resting, and breeding behaviors and contribute to higher
stress levels and reduced fitness (Patricelli et al. 2013, p. 231).
Sage-grouse could be killed by flying into turbine rotors or towers
(Erickson et al. 2001, entire), although reports of this happening are
limited.
Solar
Like other forms of renewable energy, solar energy development has
increased in recent years, but minimal activities have occurred within
the range of sage-grouse. Currently, only two solar projects have been
constructed within the range of sage-grouse, in Nevada and Oregon
(USFWS 2015a). The primary impact from solar facilities is habitat loss
due to the installation of solar panels and diversion of water to
support the facilities (Manier et al. 2013, p. 66). However, at this
time large-scale solar-generating systems have not contributed to any
calculable direct habitat loss for sage-grouse.
Future impacts from solar energy development are forecast to be
extremely limited. In 2012, the BLM assessed potential solar
development on their lands within six western States (BLM 2012). That
assessment provided direction to exclude solar development from
identified sage-grouse habitat on BLM public lands in Nevada and Utah.
[[Page 59918]]
Future development on private lands is possible, but the best available
information does not indicate that any large-scale solar projects are
planned on private lands within the range of sage-grouse at this time.
Geothermal
Geothermal exploration and development activity on Federal lands
has been sporadic, but activity has increased in recent years.
Currently, four geothermal facilities have been constructed within the
range of sage-grouse in MZs III and IV, totaling 57,384 ha (141,800 ac;
Manier et al. 2013, p. 70). The BLM has approved several geothermal
leases throughout MZs III, IV, and V and covering approximately 0.29
percent of the occupied range, but the potential of these leases being
developed is unknown. Many of these leases have existing stipulations
protecting sage-grouse seasonal habitats (BLM and USFS 2015, entire).
No geothermal development has occurred in MZs I and II, although
geothermal potential exists throughout these MZs (Manier et al. 2013,
p. 70).
The greatest potential for future commercial geothermal energy
development is within MZs III, IV, and V (EIA 2009, entire). Currently,
approximately 1,800 km\2\ (694 mi\2\) of active geothermal leases exist
on public lands primarily in the Southern (MZ IV) and Northern Great
Basin (MZ III) (Knick et al. 2011, p. 245). However, it is unknown what
portion of these leases will ever realize an operational geothermal
project. Nevada is predicted to experience the greatest increase in
geothermal growth across the United States (BLM and USFS 2008, pp. 2-
35).
Impacts from geothermal energy development have not been studied,
but are expected to be similar to oil and gas development (Manier et
al. 2013, p. 70). Direct habitat loss could occur from development of
well pads, structures, roads, pipelines, and transmission lines. Sage-
grouse could be disturbed by human activity during installation and
operation of geothermal projects (EIA 2009, entire). Water needed for
installation and operation of geothermal facilities could deplete local
water sources and potentially impact brood-rearing habitat.
Conservation Efforts
Since 2010, State and Federal agencies have worked collaboratively
to develop regulatory mechanisms to reduce or eliminate the potential
threat of new renewable energy development. The BLM and USFS amended or
revised Federal Plans to restrict development in priority habitats.
States developed and implemented State plans that govern development on
State and private lands. These efforts are in addition to direction to
conserve sage-grouse that was provided by wind, solar, and geothermal
assessments conducted by the BLM.
Federal Plans--The Federal Plans substantially reduce potential
impacts to sage-grouse from renewable energy development on more than
half the species' occupied range. The Federal Plans generally exclude
new utility-scale and commercial solar and wind developments on 14
million ha (35 million ac) of PHMA (BLM and USFS 2015, entire). Within
the 13 million ha (32 million ac) of GHMA, renewable energy project
locations are to be prioritized for development outside sage-grouse
habitat. In addition, in Nevada, California, Utah, and Colorado, the
Solar Energy Development Programmatic Environmental Impact Statement
(EIS) (BLM 2012, entire) excludes solar development in sage-grouse
habitat, protecting a majority of the habitat areas on BLM lands with
solar potential. Based on a geospatial assessment of these measures,
the Federal Plans reduce the percentage of modeled breeding habitat
potentially impacted by solar development from 15 percent to less than
1 percent and by wind development from 42 percent to 6 percent.
For geothermal projects, NSO is required in the 14 million ha (35
million ac) of PHMA for all States except Nevada and Wyoming. In
Nevada, limited geothermal development could occur on Federal lands if
it is determined that sage-grouse will not be impacted (BLM and USFS
2015, entire). In Wyoming, geothermal projects are subject to use
restrictions including disturbance caps. Geothermal projects are
allowed in GHMA, with measures such as timing limitations to minimize
impacts. Priority will be given first to leasing and authorizing
developing geothermal projects outside of PHMA and GHMA, then to non-
habitat areas within PHMA and GHMA, and lastly to the least suitable
sage-grouse habitat. Based upon a geospatial assessment of the land
uses, the Plans reduce the percentage of breeding habitat potentially
impacted by geothermal development from 33 percent to 4 percent (USFWS
2015a).
State Plans--Three State Plans provide regulatory mechanisms that
effectively reduce impacts from renewable energy development in that
State. In Wyoming, the Wyoming Plan does not allow wind energy
development, the primary type of renewable energy pursued in Wyoming,
in Core Areas, effectively removing this potential threat on
approximately 6 million ha (15 million acres) of important sage-grouse
habitat. Since 2007, Wyoming has denied 27 lease applications for wind
development on State trust lands due to this restriction in Core Areas.
On State lands or where State authorizations are required, Montana's
Plan requires avoidance of wind development in Core Areas and
recommends no such development within 4 miles of active leks in general
habitat (unless best available science demonstrates there will be no
decline in sage-grouse populations) (Montana EO 10-2014, pp. 18, 19,
21). Oregon's Plan requires avoidance, minimization, and compensatory
mitigation actions for development in sage-grouse habitat on State and
private land and, in conjunction with BLM's Federal Plan, caps the
amount of disturbance on sage-grouse core habitat to 3 percent per PAC
(Oregon OAR 635-140-0025, entire; and Oregon OAR 660-023-0115, entire).
Renewable Energy Summary
In 2010, renewable energy was identified as a potential contributor
to habitat fragmentation, and we concluded that regulatory mechanisms
were not sufficient to address the threat in the future. Since 2010,
regulatory mechanisms provided by Federal Plans and Wyoming, Montana,
and Oregon Plans that eliminate or restrict most new renewable energy
development in important sagebrush habitats substantially reduce this
potential impact on approximately 90 percent of the sage-grouse
breeding habitat. Some renewable energy development will occur in the
future, primarily on private land or in GHMA, but it is impossible at
this time to predict if, where, or how much development could occur.
Avoidance and minimization measures included in the Wyoming, Montana,
and Oregon Plans and the Federal Plans would reduce potential impacts
if those projects did occur (see Sagebrush Landscape Conservation
Planning for a detailed discussion of conservation measure
implementation and effectiveness), consistent with recommendations in
the COT Report (USFWS 2013, pp. 43-44). Based on previous land use
planning efforts, we expect these regulatory measures to be in place
for the next 20 to 30 years.
Urban and Exurban Development
In 2010, we evaluated the impact of urban and exurban development
together with agricultural conversion and infrastructure, and
determined that collectively those land uses were contributing to
habitat fragmentation (75 FR 13910, March 23, 2010, p. 13931).
[[Page 59919]]
Furthermore, the 2010 finding concluded that habitat fragmentation and
inadequate regulatory mechanisms were threats to the species such that
listing was warranted under the Act (75 FR 13910, March 23, 2010).
Impacts from European settlement began in the southwestern portion
of the sage-grouse range (MZ III) as early as the 1600s and were
widespread in the northern portion of the range by the mid-1800s
(Schroeder et al. 2004, pp. 371-372). Today, urban and exurban
development are part of the human footprint on the landscape along with
other anthropogenic features, such as roads and power lines (Leu et al.
2008, p. 1119; Bar-Massada et al. 2014, p. 429). We consider urban
areas to be those areas that are densely developed residential,
commercial, and industrial built-up areas (U.S. Census Bureau 2012, p.
1) and typically have a housing density of more than one unit per 0.4
ha (more than one unit per ac) (Brown et al. 2005, p. 1853). Exurban
development includes both development at the fringe of urban areas and
rural residential development, typically with a housing density of one
unit per 0.4 to 16 ha (1 to 40 ac) (Brown et al. 2005, p. 1853).
Exurban development has been one of the fastest growing land uses in
the United States in recent years (Hansen et al. 2005, pp. 1893-1894;
Theobald 2005, p. 1).
Most urban development is at the edge of the sage-grouse range
while exurban development is scattered throughout the range, though
limited to private lands (Connelly et al. 2004, p. 7-25; Knick et al.
2011, p. 212). Major urban areas include the Columbia River Valley in
Washington (MZ VI), the Snake River Valley in Idaho (MZ IV), and the
Bear River Valley in Utah (MZ II) (Connelly et al. 2004, p. 7-25).
Using the information in Theobald 2014 (entire), we completed a
geospatial assessment of 2010 Census data and estimated that urban and
exurban development directly affects less than 1 percent of the sage-
grouse occupied range. Indirect areas of influence related to increased
predator impacts may extend up to 3.0 km (1.86 mi) from these direct
footprints (Bui et al. 2010, p. 65). Factoring in these indirect
effects, urban and exurban development could influence approximately
12.4 percent of the sage-grouse's occupied range. Since human
population data only considers primary residences, the impact of
exurban development in rural areas, especially areas affected by
seasonal and recreational use, is likely underestimated (Brown et al.
2005, p. 1852).
Urban development affects sage-grouse habitat through the removal
of vegetation and subsequent construction of buildings and associated
infrastructure (Factor A; Knick et al. 2011, p. 217). In contrast to
urban areas, exurban areas may continue to provide some sagebrush
habitat, but it is typically less suitable due to associated
anthropogenic disturbances (Connelly et al. 2004, p. 7-26). Both urban
and exurban development can result in an increase in predation from
pets and novel predators typically associated with humans (e.g.,
ravens, skunks [Mephitis mephitis], fox), invasive plants, and
recreation impacts. Noise associated with urban and exurban development
may also affect breeding activity and other sage-grouse behavior
(Factor E); however, little information is available that assesses this
impact relative to urban activities (Blickley et al. 2012, p. 470).
Sage-grouse avoid human development for nesting and brood-rearing
(Aldridge and Boyce 2007, p. 508). Approximately 99 percent of active
leks are in landscapes with less than 3 percent developed lands;
whereas inactive leks have more than 25 times the development and human
density of active leks (Wisdom et al. 2011, p. 462; Knick et al. 2013,
p. 1547). Sage-grouse extirpation was determined to be most likely in
areas that had a human population density of at least four persons per
100 ha (four persons per 0.01 km\2\ or 247 ac) (Aldridge et al. 2008,
pp. 983 and 991).
Human populations have increased in size and spatial extent over
the past century, particularly in the western portion of the sagebrush
biome (Stiver et al. 2006, Appendix C-2; Torregrosa and Devoe 2008, p.
10). Between 2000 and 2039, the U.S. population is projected to
increase by 29 percent, with much of that increase likely to happen in
western States (Torregrosa and Devoe 2008, p. 10). The areas of the
species' occupied range at highest risk of development are private
lands along the southeastern, southwestern, and southern portions of
the species' range, and south of the Snake River, and in the Columbia
Basin (USFWS 2013, pp. 16-29). If these projected population increases
occur, the human footprint from development and resultant impacts will
also increase, leading to additional habitat loss and fragmentation in
those areas. Over half of the sage-grouse's occupied range is on
federally owned lands that are not at risk of urban and exurban
development. Nonetheless, development on adjacent private lands could
have indirect impacts, as discussed above.
Conservation Efforts
Avoiding or minimizing additional urban and exurban development in
sage-grouse habitats requires identifying habitats most at risk to
development, developing and implementing land policies to acquire,
maintain, or enhance habitat, and promoting ecologically sustainable
private lands and ranches in sage-grouse habitat (Stiver et al. 2006,
p. 33). Because urban and exurban development occurs primarily on
private lands, conservation efforts focused on private land management,
such as CCAAs and SGI, are most effective in ameliorating this impact.
Candidate Conservation Agreements--CCAAs are an effective tool for
eliminating future development on private lands within the occupied
range of sage-grouse. This outcome is because landowners enrolled in
sage-grouse CCAAs have agreed not to pursue subdivision of rangeland,
new building construction, or other new associated infrastructure. To
date, all private lands within the species' range in Oregon and Wyoming
are potentially covered by CCAAs; approximately 745,000 ha (1.8 million
ac) have landowner commitments, effectively removing the risk of urban
and exurban development in these areas.
Sage Grouse Initiative--Conservation easements are voluntary
agreements between a landowner and with a land trust, the NRCS, or
other organizations or agencies that maintain the land in private
ownership with development restrictions that are typically permanent.
Conservation easements can permanently protect sagebrush habitat from
subdivision while providing compensation to landowners. The NRCS,
through implementation of the SGI, has entered approximately 182,870 ha
(451,884 ac) into conservation easements through fiscal year 2013 (NRCS
2015a, p. 38). Most easements for sage-grouse are located inside PACs
(79 percent), and 94 percent of them provide permanent protection from
future development.
State Plans--The Montana, Wyoming, and Oregon Plans include
measures to address urban and exurban development. The Montana Plan
regulates habitat loss due to urbanization on State lands and on
private lands if a project needs an authorization from the State. The
Montana Plan includes seasonal, timing, and noise restrictions;
disturbance caps; lek buffers; and other conservation measures to
reduce the potential threat of urbanization (Montana EO 10-2014, pp.
13-21). The Wyoming Plan includes
[[Page 59920]]
disturbances from exurban and urban development in calculations of
their disturbance caps, which are used to limit overall disturbance in
Core Areas. Oregon's State regulations require cities and counties to
avoid sage-grouse habitat when amending land use planning designations
that could increase opportunities for urban and exurban development or
when making changes to their codes that may affect sage-grouse habitat.
To the extent that urban and exurban development were to occur, it also
would be subject to regulations (requiring avoidance, minimization, and
compensatory mitigation) and a cap on the amount of disturbance on
sage-grouse core habitat to 3 percent per PAC (Oregon OAR 635-140-0025,
entire; and Oregon OAR 660-023-0115, entire).
Federal Plans--Lands administered by the BLM and USFS are not
directly affected by urban and exurban development, as those agencies
are not authorized to permit those land uses. The Federal Plans require
that any PHMAs and GHMAs be retained in Federal management, thus
preventing transfer to private landownership that could result in urban
or exurban development. Limited exceptions to this provision could be
allowed if transfer of land ownership would benefit sage-grouse or not
cause any adverse effects. As a result of the Federal land ownership
and limitations on transference provided by the Federal Plans, the risk
of urban and exurban development is reduced on approximately 90 percent
of the breeding habitat across the species' range.
Summary of Urban and Exurban Development
The 2010 finding concluded that growing human populations and
associated urban and exurban development were adversely affecting sage-
grouse. Urban and exurban development is expected to continue to affect
sagebrush habitat throughout the sage-grouse range, causing localized
impacts to individuals and populations. The impacts are not anticipated
to occur evenly across the range; they are expected to occur primarily
upon private lands and likely near existing developed areas as
populations expand. Fifty-three percent of the occupied range is on
federally owned lands where urban and exurban development is unlikely
to occur, although associated infrastructure and indirect effects are
possible. Existing urban and exurban development will continue to
affect sagebrush habitat at many locations scattered throughout the
sage-grouse's range, causing impacts to individuals or populations.
Substantial private land conservation efforts that are consistent with
the recommendations of the COT Report (USFWS 2013, pp. 50-51),
including SGI's completion of more than 182,870 ha (451,884 ac) of
conservation easements, have minimized potential impacts of new
development throughout the range.
Recreation
In 2010, we evaluated the effect of recreation on sage-grouse and
concluded that it was not a threat to the species (75 FR 13910, March
23, 2010, pp. 13984-13985). We have no new information at this time to
change the conclusion that recreation is not a threat to the species.
Recreational hunting of sage-grouse is discussed in another section
(see, Hunting) and is not discussed in this section.
Recreational activities occur across the range of the species (42
of the 48 sage-grouse populations; USFWS 2013, pp. 16-29), but are of
limited severity and typically concentrated in specific, designated
areas, such as trails and campgrounds. Recreational activities include
hiking, camping, fishing, horseback riding, mountain biking, off-
highway vehicle use, and wildlife viewing (Ouren et al. 2007, p. 2;
Ibrahim and Cordes 2008, p. 14; Knight 2009, p. 167; NDOW 2014, p. 1).
The majority (72 percent) of recreational visits to BLM-administered
lands occurred in areas not containing sagebrush (ECONorthwest 2014, p.
13), indicating that sage-grouse habitat may be affected less
frequently by recreation than other areas. Little information exists
about the level of impacts that may be occurring from recreational
activities (ECONorthwest 2014, p. 13); however, off-highway vehicle
impacts to sage-grouse habitat have been reported in a few areas in
Oregon (Hagen 2011, pp. 197-198). Impacts have also been reported at
leks in Oregon and Nevada, where regular lek viewing has caused
disturbance (Budeau, Oregon Department of Fish and Wildlife, 2014a,
pers. comm.; Espinosa, Nevada Department of Wildlife, 2014a, pers.
comm).
Though limited in extent and frequency, recreational activities can
have a variety of direct and indirect effects to sage-grouse. Although
rare, people can crush eggs or strike birds with vehicles (Factor E)
(Connelly et al. 2000b, p. 228; Wiechman 2013, p. 12). Activities could
degrade habitat, introduce invasive plants, or increase wildfire risk
(Factor A) (NWCG 1999, pp. 6-7, Ouren et al. 2007, p. 16; Knick et al.
2011, p. 219). Noise and movement associated with recreational activity
may disrupt sage-grouse behavior or movement patterns (Factor E)
(Blickley et al. 2012, pp. 467-470, Patricelli et al. 2013, p. 242).
Predation (Factor C) may increase due to increases in trash associated
with recreational activities or due to the presence of pets
accompanying humans (Knick et al. 2011 p. 219; Young et al. 2011, pp.
126-127).
Given the limited data about recreational activities occurring in
sage-grouse habitat, it is difficult to accurately predict future
impacts on sage-grouse throughout the range. However, based on
historical and current trends, recreational activities are likely to
continue on the landscape indefinitely. Recreational activities may
increase over time in correlation to predicted increases in human
populations.
Conservation Efforts
Federal Plans--The Federal Plans include conservation measures
consistent with the COT Report recommendations (USFWS 2013, p. 50) to
reduce recreation impacts (BLM and USFS 2015, entire). The Federal
Plans exclude new recreational facilities in PHMA, with limited
exceptions when needed for safety or when beneficial to sage-grouse.
Off-highway vehicle travel will be limited to existing routes and
trails and that have neutral or net positive impacts on sage-grouse in
PHMA and GHMA. Additional measures to minimize potential impacts that
might result from development of recreational facilities and
infrastructure include seasonal and timing restrictions, lek buffers,
disturbance caps, and mitigation.
State Plans--The Montana State Plan includes conservation measures,
such as seasonal and noise restrictions and lek buffers, to reduce
impacts from new recreation facilities on State lands and private lands
where State authorization is required (Montana E.O. 10-2014, pp. 4, 13-
21). In addition, most States discourage recreational viewing of sage-
grouse during the breeding season and do not provide lek locations to
the general public (Budeau, Oregon Department of Fish and Wildlife
2014a, pers. comm.; Robinson, North Dakota Game and Fish Department,
2014a, pers. comm.; Schroeder, Washington Department of Fish and
Wildlife 2014, pers. comm.; Wightman, Montana Fish, Wildlife, and Parks
2014a, pers. comm.). In addition, Wyoming and Washington have measures
to minimize impacts from recreational lek viewing, including wildlife
harassment laws (Christiansen, Wyoming Game and Fish Department,
[[Page 59921]]
2014a, pers. comm.; Schroeder, Washington Department of Fish and
Wildlife, 2014, pers. comm).
Summary of Recreation
In the 2010 finding, we concluded that recreation was not a threat
to the species. No additional evidence has been discovered or presented
suggesting that recreational activities or the associated impacts have
changed since the 2010 finding. Recreation continues to be an activity
that occurs sporadically across the range of the species, with some
localized impacts, but no population-level effects to the species.
Together, the Federal Plans and Wyoming, Montana, and Oregon State
Plans reduce impacts from recreation to the areas identified as PHMA
and GHMA, which encompass approximately 90 percent of the modeled
breeding habitat across the species' range (see Sagebrush Landscape
Conservation Planning for a detailed discussion of conservation measure
implementation and effectiveness). Therefore, we conclude that
recreation is not a threat to the species, now or in the future.
Climate Change and Drought
In 2010, we evaluated the effect of climate change and drought on
sage-grouse (75 FR 13910; March 23, 2010; pp. 13954-13957). While the
direct impact of climate change on sage-grouse was unknown, we found
climate change to be intensifying other threats such as fire and
invasive species. We found drought not to be a substantial threat to
the species across its range.
Climate Change
Our analysis of impacts to sage-grouse attributable to climate
change includes the consideration of ongoing and projected changes in
climate across the sage-grouse's range. The terms ``climate'' and
``climate change'' are defined by the Intergovernmental Panel on
Climate Change (IPCC). ``Climate'' refers to the mean and variability
of different types of weather conditions over time, with 30 years being
a typical period for such measurements, although shorter or longer
periods also may be used (IPCC 2007, p. 78). The term ``climate
change'' thus refers to a change in the mean or variability of one or
more measures of climate (e.g., temperature or precipitation) that
persists for an extended period, typically decades or longer, whether
the change is due to natural variability, human activity, or both (IPCC
2007, p. 78). Various types of changes in climate can have direct or
indirect effects on species. These effects may be positive, neutral, or
negative, and they may change over time, depending on the species and
other relevant considerations, such as the effects of interactions of
climate with other variables (e.g., habitat fragmentation) (IPCC 2007,
pp. 8-19). In seeking to evaluate the potential impacts of climate
change on sage-grouse, we have weighed relevant information, including
areas of uncertainty, together with our understanding of sage-grouse
biology and ecology.
Increases in global and regional ambient temperature and variable
changes in precipitation are projected out to the end of the 21st
century (IPCC 2013, p. 19). Some degree of uncertainty is inherent in
these and other projections of future change; however, climate change
will likely affect to some degree the entire range of sage-grouse, with
the greatest potential adverse impacts occurring in the southern Great
Basin (Schlaepfer et al. 2011, p. 380).
Direct impacts of climate on individual birds are unknown for most
species, including sage-grouse (Factor E), but climate is likely to
influence the distribution and quality of sage-grouse habitat (Factor
A) (Miller et al. 2011, pp. 174-179, Gardali et al. 2012, p. 3). The
natural distribution of sagebrush is driven by soil-water availability
(Schlaepfer et al. 2014, p. 349; Schlaepfer et al. 2015, pp. 7-8),
which is influenced by the amount and seasonality of precipitation and
by temperature (Bradford et al. 2014, p. 595). Changes in precipitation
timing and increases in ambient temperature are projected to lead to
increased evaporation and transpiration in sagebrush habitat and a
lengthening summer period of dry soil conditions (Bradford et al. 2014,
p. 599). These conditions are projected to be most pronounced along the
southern edge of the current distribution of sagebrush (MZs III and
VII), and particularly at low elevations (Schlaepfer et al. 2015, p.
13; Still and Richardson 2015, p. 33). In these areas, climate change
may result in northward and upslope shifts in frost-sensitive woodland
vegetation into areas currently suitable for sagebrush (Neilson et al.
2005, pp. 153-155; Comer et al. 2012, p. 142; reviewed in Friggens et
al. 2012, pp. 8-11; Rehfeldt et al. 2012, p. 126), potentially
altering, or displacing sagebrush habitat. It is unknown to what extent
these changes could result in habitat loss and fragmentation, but
adverse effects to populations could occur if habitat loss exacerbates
impacts from other stressors (Johnson et al. 2011, pp. 447-450; Miller
et al. 2011, pp. 183-184; Wisdom et al. 2011, pp. 465-468).
Beyond affecting sagebrush directly, the effects of climate change
can interact with and increase effects from other stressors (Chambers
et al. 2014c, p. 368), such as invasive plants, drought, and wildfire.
For example, cheatgrass grows best with wet and warm conditions, so
increasing temperature coupled with increased winter and spring
precipitation is likely to facilitate its spread (Balch et al. 2013, p.
174). Combined, these stressors could have additive impacts to
sagebrush habitat (Bradford et al. 2014, p. 599; Chambers et al. 2014c,
entire) as discussed further in Cumulative Effects. Climate change is
likely to shift the distribution of sagebrush at the southernmost
extent of the species' range, including areas in MZ III (Schlaepfer et
al. 2011, p. 380). Any other effects of climate change are unknown at
this time, and the extent of potential cumulative effects is also
unknown.
Drought
Drought is a natural, periodic occurrence throughout the range of
the sage-grouse. Large-scale drought lasting a decade, similar to the
1930s Dust Bowl drought, has occurred once or twice per century on
average (Woodhouse and Overpeck 1998, p. 2706; Ault et al. 2014, p.
7529), and periodic drought regularly influences sagebrush ecosystems
(Bar-Massa et al. 2006, p. 1; Miller et al. 2011, p. 145; Miller et al.
2011, p. 145). In the future, certain portions of the range (MZs I and
VI and portions of MZs II and IV) are forecast to have increased risk
and higher severity of drought, though the entire range will likely be
affected (Cook 2015, p. 6).
Drought impacts to sage-grouse habitat may affect adult survival,
nesting success, and chick survival (Factor A). Structural composition
of plants vital for sustaining sage-grouse nesting success, including
plant height and percent plant cover, may be affected during drought
(Hanf et al. 1994, p. 41). Decreases in insects and forbs important for
sage-grouse chick survival during drought may negatively affect sage-
grouse populations (Johnson and Boyce 1990, p. 91; Crawford et al.
2004, p. 6; Aldridge and Bridgham 2003, p. 31; Fischer et al. 1996, p.
197). Drought has been correlated with declines in populations
(Patterson 1952, p. 33; Braun 1998, p. 139) and has coincided with
periods of low population levels (Connelly and Braun 1997, pp. 231-
232). In the period 1950-2003, drought had a weak negative effect on
sage-grouse persistence, with extirpation most likely in areas having
three or
[[Page 59922]]
more severe droughts per decade (Aldridge et al. 2008, pp. 983, 992).
Based on precipitation and temperature projections, drought
frequencies are expected to increase across the country, especially in
the Rocky Mountain and southwestern States, including all sage-grouse
MZs (Strzepek et al. 2010, p. 1).
The risk of decade-scale drought occurring within the southern MZs
within the sage-grouse range (MZs III, V, and VII and portions of MZs
II and IV) this century is estimated between 20 and 70 percent (Ault et
al. 2014, pp. 7541-7542). The probability of decade-scale drought in
the northern MZs (MZs I and VI and portions of MZs II and IV) is
between 10 and 50 percent (Ault et al. 2014, pp. 7541-7542).
Conservation Efforts
Ameliorating the impacts of climate change and drought to sage-
grouse involves addressing other impacts to the species to improve the
resilience of the species and its sagebrush habitat under changing
environmental conditions. Maintaining large expanses of undisturbed
habitat is the best way to address potential impacts that could lead to
habitat fragmentation; as discussed in other impacts sections and
Sagebrush Landscape Conservation Planning, new regulatory mechanisms
and conservation efforts are in place to address those potential
impacts. In addition, many conservation actions have been implemented
to address those other impacts that are most influenced by climate
change and drought, such as wildfire, invasive plants, improper
grazing, and conifer encroachment. Full discussions of the best
management practices, conservation efforts, and regulatory mechanisms
associated with these compounding impacts are included under each
impact section in Summary of Information Pertaining to the Five
Factors.
Climate Change and Drought Summary
The understanding of impacts from climate change and drought has
not changed substantially from the 2010 finding. Climate change effects
on the timing and amount of precipitation could adversely affect
sagebrush habitat and food availability, with potential negative
consequences for sage-grouse survival and recruitment; however, the
extent and nature of this potential impact is not understood. Drought
is a natural part of the sagebrush ecosystem, and sage-grouse abundance
has been shown to fluctuate in correlation to drought conditions.
Climate change and drought are most likely to affect individuals and
populations at the southern extent of the species' range; however, the
extent or nature of those effects to sage-grouse are unknown at this
time. The greatest concern from climate change and drought is their
potential to increase wildfire and invasive plant impacts in the Great
Basin. If hotter and drier conditions lead to increased burn rates,
then increased habitat loss due to wildfire could be predicted (see
Wildfire and Invasive Plants, above); however, the extent to which
climate change and drought may change burn rates is unknown. Therefore,
based on the best available information, climate change and drought are
not threats to sage-grouse, now or in the future.
Predation
In 2010, we evaluated the effect of predation on sage-grouse and
concluded that predation was not a threat to the species (75 FR 13910,
March 23, 2010, p. 13973). We concluded that landscape fragmentation is
likely contributing to increased predation on sage-grouse. However,
except in localized areas where habitat is compromised, we found no
evidence to suggest that predation is limiting sage-grouse populations
rangewide. New information developed since that time does not alter our
conclusion.
Predation (Factor C) is the most commonly identified cause of
direct mortality for sage-grouse during all life stages (Blomberg et
al. 2013b, p. 347; Caudill et al. 2014, p. 808). Rangewide, sage-grouse
are exposed to a number of different predators, including raptors,
small mammals, and snakes (Schroeder et al. 1999, pp. 10-11; Coates et
al. 2008 pp. 424-425; Lockyer et al. 2013, p. 248). However, sage-
grouse have co-evolved with their predators, resulting in the
development of cryptic plumage and behavioral adaptations that have
allowed them to persist despite this mortality factor (Coates and
Delehanty 2008, p. 635; Hagen 2011, p. 96). Sage-grouse mortality rates
due to predation vary widely by location and time of year, and short-
term studies are often not representative of population dynamics for
the species across the range (Taylor et al. 2012b, p. 337).
The habitat fragmentation and development that began across the
sagebrush ecosystem in the late 19th century (see Habitat
Fragmentation, above) has caused predator dynamics to change (Fichter
and Williams 1967, p. 225; Baxter et al. 2007, p. 266; Coates and
Delehanty 2010, p. 240). Decreased habitat quality and quantity has
created a situation in which the sage-grouse are more vulnerable to
predation (Connelly et al. 1991, p. 524; Coates 2007, pp. 38-39; Hagen
2011, p. 96). Agricultural development, landscape fragmentation, and
encroaching human populations may increase the diversity and density of
predators (Summers et al. 2004, p. 523; Coates and Delehanty 2010, p.
246; Dinkins et al. 2014, p. 639). Degraded and fragmented landscapes
can benefit predators by increasing their kill efficiency, as well as
subsidizing their food and nest or den substrate (Hagen 2011, p. 100).
The abundance of red foxes (Vulpes vulpes), raccoons (Procyon lotor),
crows (Corvus brachyrhynchos), and ravens, which historically were rare
in the sagebrush landscape, has increased in association with human-
altered landscapes (Luginbuhl et al. 2001, p. 570). Raven abundance has
increased as much as 1,500 percent in some areas of western North
America since the 1960s (Coates and Delehanty 2010, p. 244). Several
studies have documented negative effects to sage-grouse associated with
increased corvid populations (corvids are a group of birds that include
ravens, crows, magpies (Pica spp.), and jays) (Holloran 2005, p. 58;
Coates 2007, p. 130; Conover et al. 2010, p. 335; Lockyer et al. 2013,
p. 242; Coates et al. 2014, pp. 73-74; Howe et al. 2014, p. 36). Ravens
may prefer certain sage-grouse habitats, such as big sagebrush
communities and wet meadows, and the abundance of ravens may increase
near livestock grazing and agriculture (Coates et al., in press).
High predator abundance within a sage-grouse nesting area may
negatively affect sage-grouse productivity without causing direct
mortality. The increase in the numbers of corvids within the sagebrush
ecosystem is an important change because sage-grouse nests are at
greater risk of predation by these visual predators (Conover et al.
2010, p. 335). Even low but consistent raven presence can influence
sage-grouse reproductive behavior (Bui 2009, p. 32; Dinkins et al.
2012, p. 606). Sage-grouse females tend to select nest and brood-
rearing locations that are farther away from predator perches and have
lower densities of avian predators (Dinkins et al. 2012, p. 606;
Dinkins et al. 2014, p. 637). When nesting in areas with relatively
higher abundances of ravens, females reduce the amount of time they
spend off their nests, potentially compromising their ability to secure
sufficient nutrition to complete the incubation period (Coates and
Delehanty 2008, p. 636).
Data are lacking that definitively link sage-grouse population
trends with predator abundance. At the rangewide scale, predation is
not believed to be a widespread factor limiting sage-grouse
[[Page 59923]]
population growth (Connelly et al. 2000a, p. 975; Connelly et al. 2004,
p. 10-1). However, in localized areas where habitat is compromised by
human activities, predation could be limiting local sage-grouse
populations (Coates 2007, p. 131; Bui 2009, p. 33; Lockyer et al. 2013,
p. 242). Holloran (2005, p. 58) attributed increased sage-grouse nest
depredation to high corvid abundances in western Wyoming, which
resulted from anthropogenic food and perching subsidies in areas of
natural gas development. Mammalian predators and ravens are suspected
of causing sage-grouse population decline and extirpation in Washington
(Schroeder et al. 2014, p. 10). Raven abundance was also strongly
associated with sage-grouse nest failure in Nevada, resulting in
negative effects on sage-grouse reproduction (Coates 2007, p. 130;
Lockyer et al. 2013, p. 242). Studies on increasing raven populations
have also been recently conducted in Idaho (Coates et al. 2014, entire;
Howe et al. 2014, entire) and central Utah (Conover et al. 2010,
entire).
Since 2010, conservation efforts have been implemented to address
predation and associated impacts. Conservation measures can limit the
effects of predation by preventing habitat fragmentation caused by
transmission lines, roads, and nonnative vegetation (Howe et al. 2014,
p. 46). As discussed in other sections of this finding, regulatory
measures provided by the Federal Plans and certain State Plans limit
new development within important sage-grouse habitat, thus reducing
habitat fragmentation that facilitates increased predation (see
Nonrenewable Energy Development, Mining, Renewable Energy, and Urban
and Exurban Development). Measures to remove predator perches or
subsidized food sources could minimize effects, but predator removal
programs have not yet proven to be effective, as predator populations
quickly rebound without continual control (Coates 2007, p 152; Hagen
2011, p. 99).
In summary, predation was identified as a potential threat in the
2010 finding and will likely continue to have adverse impacts to local
populations, particularly in areas where habitat fragmentation has
occurred. Mortality due to nest predation by ravens or other human-
subsidized predators is increasing in some areas (e.g., in MZs III, VI,
and VII), at times causing local population declines, and in extreme
cases, local extirpations. However, information about the rangewide
extent of predation is limited and there is no indication that
predation is causing a rangewide decline in population trends. Since
the 2010 finding, regulatory mechanisms from Federal Plans and Wyoming,
Montana, and Oregon State Plans have been implemented that limit
additional future habitat loss and fragmentation to the areas
identified as PHMA and GHMA which encompass approximately 90 percent of
the modeled breeding habitat across the species' range (see Sagebrush
Landscape Conservation Planning for a detailed discussion of
conservation measure implementation and effectiveness). These
restrictions on future development will effectively eliminate new
disturbances that remove cover habitat and facilitate the expansion of
predators, thus reducing the potential for predation on sage-grouse.
Disease
In 2010, we evaluated the effect of disease (Factor C) on sage-
grouse and concluded that disease was not a threat to the species (75
FR 13910, March 23, 2010, p. 13970). In that finding, we determined
that, while WNv was affecting some populations, no evidence existed
that disease was a substantial mortality factor for the persistence of
sage-grouse across the species' range (75 FR 13910, March 23, 2010, p.
13970). We have no new information to indicate that analysis has
changed.
Sage-grouse are host to numerous parasites and pathogens (Connelly
et al. 2004, pp. 10-4 to 10-8; Christiansen and Tate 2011, pp. 114-
118). The presence of parasites or pathogens is not synonymous with the
presence of disease or population-level impacts (Connelly et al. 2004,
p. 10-3; Christiansen and Tate 2011, p. 114). To date, most parasites
and pathogens found in sage-grouse are not known to cause substantial,
chronic mortality or other adverse impacts to sage-grouse populations
(reviewed in Christiansen and Tate 2011, pp. 114, 119-125).
West Nile virus is known to have localized impacts to sage-grouse
populations (Christiansen and Tate 2011, p. 122; Walker and Naugle
2011, p. 139). Similar to other North American bird species (McLean
2006, p. 54), sage-grouse are highly susceptible to WNv, with mortality
rates nearing 100 percent of infected birds (McLean 2006, pp. 53-54;
Clark et al. 2006, p. 18). West Nile virus is transmitted among birds
mainly through a mosquito-bird-mosquito infection cycle that relies on
optimal climate conditions and movement of birds (McLean 2006, p. 52).
The mosquito (Culex tarsalis) is the primary vector of WNv in sage-
grouse (Naugle et al. 2005, p. 617). Most sage-grouse infected with WNv
die in as few as 6 days, but a small proportion of infected birds
survive, as evidenced by the presence of WNv-specific antibodies in
live birds (Walker et al. 2007b, p. 691; Dusek et al. 2014, p. 726).
High mortality rates from WNv can reduce average annual adult survival,
a limiting factor in sage-grouse population growth (Johnson and Braun
1999, p. 81; Taylor et al. 2012b, p. 343). Population-level impacts can
also result from WNv mortality in juvenile sage-grouse by decreasing
recruitment into the breeding population the following year (Kaczor
2008, p. 65; Taylor et al. 2012b, p. 343).
West Nile virus has been detected across the species' range, with
localized outbreaks occurring in 10 of 11 States and 1 of 2 Canadian
provinces in the species' range (WNv has not been detected in
Washington or Saskatchewan (USFWS 2014b)); however, sage-grouse are
likely to have been infected in Saskatchewan as well (Walker and Naugle
2011, p. 133). West Nile virus infections in other species in
Washington suggest that sage-grouse in the Columbia Basin could be
exposed to the disease (USGS NWHC 2014). West Nile virus was first
detected in sage-grouse in 2003, with localized outbreaks occurring
from 2004 to 2009 (Naugle et al. 2004, p. 705); no outbreaks have been
recorded since 2009 (USFWS 2014b). However, no rangewide disease
surveillance program exists to know for certain the extent of outbreaks
across the species' range, and it is likely that many WNv-related sage-
grouse mortalities go undocumented.
Although WNv is present throughout the range of sage-grouse, on a
finer scale WNv presence depends upon water sources that provide
aquatic breeding habitat for mosquitoes (Zou et al. 2006, p. 1035;
Doherty 2007, pp. 60-61). The development of anthropogenic water
sources could provide breeding habitat for mosquitoes that contribute
to WNv outbreaks. In addition, WNv outbreaks in humans are associated
with drought conditions and high ambient temperature in spring and
summer (Epstein and Defilippo 2001, p. 106), and drought conditions
likely increase the probability of WNv outbreaks in sage-grouse as
well. When high temperature and drought combine, sage-grouse are
concentrated in shrinking mesic habitats (Schrag et al. 2011, p. 2).
Under these conditions, contact between mosquitoes and birds increases,
and the risk of WNv transmission and an outbreak among sage-grouse is
elevated (Walker and Naugle 2011, p. 131).
The primary conservation measure for WNv is the control of
mosquitoes and their breeding habitat (Walker and
[[Page 59924]]
Naugle 2011, pp. 140-141). Measures that limit development that creates
new mosquito breeding habitat or measures that manage existing water
features so that mosquitos cannot use them to breed (e.g., circulating
water, using larvicides, or mosquito fish (Gambusia spp.)) are most
effective in reducing future WNv outbreaks. As discussed in other
sections of this finding, regulatory measures provided by the Federal
Plans and the Wyoming, Montana, and Oregon Plans limit new development
within important sage-grouse habitat, thus reducing the risk of
anthropogenic water sources being constructed that could provide
mosquito breeding habitat (see Nonrenewable Energy Development, Mining,
Renewable Energy, and Urban and Exurban Development). In addition, the
Federal Plans contain RDFs that will minimize the risk of WNv
outbreaks, such as requirements for water feature installation to
minimize the likelihood of mosquito breeding (see Sagebrush Landscape
Conservation Planning for a detailed discussion of conservation measure
implementation and effectiveness). The SGI program includes assistance
to private landowners to manage water features in a way that minimizes
the likelihood of mosquito breeding.
With the exception of WNv, we could find no evidence that disease
poses an impact to sage-grouse across the species' range. West Nile
virus currently is a localized stressor that has had impacts on some
sage-grouse populations, having caused declines and in some cases local
extirpations of populations in North Dakota, South Dakota, southeast
Montana, and Idaho. In those affected areas, WNv is likely to have an
adverse effect on population growth rates, with small populations being
at greatest risk of extirpation if outbreaks reduce population size
below a threshold where recovery is no longer possible (Walker and
Naugle 2011, pp. 137-139, 140). The incidence of WNv is likely to
continue across the species' range in the future. The factors most
likely to affect future occurrence are climate change and the abundance
and the distribution of anthropogenic surface water. Conservation
measures that limit and or manage the development of new artificial
water sources will minimize habitat availability for mosquitoes that
could spread WNv. As noted in our 2010 finding, a complex set of
environmental and biotic conditions that support the WNv cycle must
coincide for an outbreak to occur, and the annual patchy distribution
of the disease is currently keeping population-level impacts at a
minimum (75 FR 13910, March 23, 2010, p. 13970).
Recreational Hunting
In 2010, we evaluated the effect of recreational hunting on sage-
grouse and concluded that recreational hunting is not a threat to the
species (75 FR 13910; March 23, 2010; p. 13965). In 2010, we also
determined that the effects of falconry hunting and poaching are
negligible due to their extremely limited extent (75 FR 13910; March
23, 2010; p. 13965). We have no new information about falconry hunting
or poaching to change those determinations; therefore, they will not be
discussed further in this status review.
During the late 1800s and early 1900s, the sage-grouse was heavily
exploited by both commercial and sport hunters (Factor B) (Patterson
1952, pp. 30-33; Autenrieth 1981, pp. 3-11). State wildlife agencies
were sufficiently concerned with the observed declines in the 1920s and
1930s that many closed their hunting seasons and others reduced bag
limits and season lengths as a precautionary measure (Patterson 1952,
pp. 30-33; Autenrieth 1981, p. 10). By the 1950s, populations were
considered recovered and recreational hunting was again allowed
throughout the range (Patterson 1952, p. 242; Autenrieth 1981, p. 11).
In recent years, hunting seasons and bag limits have fluctuated and
become more conservative across the species' range as States responded
to changing population numbers and perceived threats to birds (Reese
and Connelly 2011, p. 104).
In 2014, sage-grouse hunting took place in 8 of the 11 States where
sage-grouse occur. Sage-grouse are listed as a threatened species in
Washington (Stinson et al. 2004, p. 1), and hunting has been closed
since 1988. Sage-grouse has not been hunted in Saskatchewan since 1938,
and Alberta closed the season in 1996 (Aldridge and Brigham 2003, p.
25). In 1998, sage-grouse was designated as endangered in Canada, and
hunting is prohibited there (Connelly et al. 2004, p. 6-3). North
Dakota closed its hunting season in 2008 due to low lek count numbers,
and it has remained closed. South Dakota closed its hunting season in
2013 due to low lek count numbers; it also remained closed in 2014.
Montana Fish and Wildlife Commission closed all or parts of 32 counties
to sage-grouse hunting in 2014, and shortened the hunting season from 2
months to 1 month.
Sage-grouse hunting is regulated by State wildlife agencies.
Hunting seasons are reviewed annually, at which time States can adjust
harvest management based on updated abundance information and adaptive
management criteria established in State wildlife management plans.
Information on abundance and local habitat conditions is used to make
any adjustments to the hunting season necessary to reduce the potential
for additive mortality. Seasonal adjustments take the form of changes
to the number of permits issued, changes to the season length or bag
limit, or total closure of the hunting season. Bag limits and season
lengths are relatively conservative compared to prior decades (Connelly
2005, p. 9; Gardner, California Department of Fish and Game, 2008,
pers. comm.; USFWS 2014b). Emergency closures, changes in permit
numbers, and implementation of more conservative hunting seasons have
been used for populations in decline or in areas experiencing other
issues of potential concern (Budeau, Oregon Department of Fish and
Wildlife, 2014b, pers. comm.; Christiansen, Wyoming Game and Fish
Department, 2014b, pers. comm.; Espinosa, Nevada Department of
Wildlife, 2014b, pers. comm.; Griffin, Colorado Parks and Wildlife,
2014, pers. comm.; Moser, Idaho Department of Fish and Game, 2014,
pers. comm.; Robinson, Utah Division of Wildlife Resources, 2014b,
pers. comm.; Wightman, Montana Fish, Wildlife, and Parks, 2014b, pers.
comm.).
Recreational hunting is anticipated to continue into the future,
though it is difficult to make accurate predictions about specific
levels of hunting mortality because States make adjustments annually.
Given the downward trend in hunting mortality reported over the last
several decades, mortality rates from hunting will likely continue to
decrease. Rangewide, hunting seasons are more conservative than in the
past, which has resulted in a reduction in sage-grouse hunting
mortality across all sex and age classes (USFWS 2014b). Many States
have reported estimated hunting mortality to be lower than the 10
percent mortality cap recommended by Connelly et al. (2000a p. 976)
(Christiansen 2010, p. 12; Budeau 2014b, pers. comm.).
In 2010, we concluded that hunting was not a threat to the species
and based on current information about harvest rates, it continues not
have substantial impacts to sage-grouse. To date, changes in the
management of sage-grouse hunting have resulted in a substantial
reduction in sage-grouse hunting mortality rangewide.
Scientific and Educational Use
In 2010, we evaluated the potential overuse of sage-grouse for
scientific and educational purposes and determined
[[Page 59925]]
that it was not a threat to the species (75 FR 13910, March 23, 2010).
Scientific use was occurring at low levels, but no evidence existed to
indicate that scientific use was affecting populations or abundance
trends. No educational use was known at that time. As discussed further
below, we have no new information indicating that the level of
utilization for scientific purposes has changed since the 2010 status
review.
Sage-grouse are one of the most intensely researched and monitored
birds in North America. Scientists researching or monitoring sage-
grouse typically observe, approach, capture, handle, band, or attach
radio transmitters to individual sage-grouse to study their movements,
behaviors, and population dynamics. Translocations have been used for a
variety of scientific purposes, such as a management tool to restore or
augment declining populations of sage-grouse and to improve the genetic
diversity of populations (Alberta Environment and Sustainable Resource
Development 2013, p. viii; White 2013, p. 9; Schroeder et al. 2014, p.
8; Yakama Nation 2015, entire).
During research-related activities, scientists could
unintentionally kill, disturb, or reduce the survival of individual
sage-grouse (Factor B) (Connelly et al. 2003, p. 32; Gibson et al.
2013, p. 773). Despite these potential impacts, sage-grouse mortalities
from scientific activities are extremely rare. Annually, less than 3
percent of the sage-grouse captured for research or monitoring
activities die as a result of their capture and handling (USFWS 2014b).
Radio transmitters have had negative impacts to individual birds
(Connelly et al. 2003, p. 32; Colorado Parks and Wildlife 2013, p. 48;
USFWS 2014b), but no population-level impacts have been observed.
Survival rates of translocated sage-grouse vary from 36 percent in
central Idaho (Musil et al. 1993, p. 88) to greater than 45 percent in
north-central Utah (Baxter et al. 2013, p. 809) and 62.4 percent in
northeastern California (Bell and George 2012, p. 373). The efficacy of
translocation efforts have been questioned because translocation
success, as measured by persistence of reintroduced populations or
increases of extant populations, has been low (Reese and Connelly 1997,
pp. 235-238). However, more recent attempts have been successful
(Alberta Environment and Sustainable Resource Development 2014, p. 6;
Baxter et al. 2006, p. 182). When translocation protocols are followed,
translocated female sage-grouse survive just as well as resident
individuals and quickly integrate into the local population (Bell and
George 2012, p. 373). Sage-grouse translocated into the Columbia Basin
in Washington (MZ VI) have generally survived (White 2013, p. 9;
Schroeder et al. 2014, pp. 8, 17, 21). Translocations will likely
continue at similar rates, and there is no evidence that the removal of
sage-grouse from source populations has caused declines in abundance.
In summary, although research or monitoring of sage-grouse could
potentially affect individuals, the best available information does not
indicate that adverse impacts are occurring at the population level.
Information gained through these methods has directly benefited the
species. In addition, while translocations have variable success rates,
the best available information does not indicate that the
translocations affect the populations from which the birds were
removed. Although sage-grouse are intensely studied and monitored,
there is no evidence to indicate that sage-grouse use for scientific
purposes is affecting the species locally or rangewide.
Contaminants
In 2010, we determined that contaminants were not a threat to the
sage-grouse (75 FR 13910, March 23, 2010, pp.13982-13984). Sage-grouse
exposed to contaminants may become sick or die (Factor E), and
contaminants may reduce or remove sage-grouse habitats (Factor A).
Types of contaminants that potentially affect sage-grouse include but
are not limited to pesticides, products from mining and energy
development, human waste, fire retardants, and airborne pollutants from
roads, vehicles, and other machinery (Beck and Mitchell 2000, p. 997;
Olsgard et al. 2009, p. 178; Hansen et al. 2011, p. 593; Christiansen
and Tate 2011, p. 125). Contaminants may be intentionally introduced
into sage-grouse habitats to improve conditions for crops and
livestock, extract nonrenewable and nuclear energy resources, construct
infrastructure, and manage wildfires (Larson et al. 1999, p. 115;
Gibbons et al. 2015, p. 105). Spills or leaks along pipelines,
highways, roads, and railroads can also unintentionally release
contaminants into sage-grouse habitats.
In the past, pesticides were used to remove sagebrush, other
unwanted woody shrubs, invasive plants, and nuisance insects in sage-
grouse habitats in order to improve conditions for agricultural crops
and livestock (Connelly et al. 2004, p. 7-28; Beck et al. 2012, p.
445). Exposure to pesticides and herbicides can kill sage-grouse, cause
abnormal behavior, or degrade sagebrush habitat (Blus and Connelly
1998, p. 23; Christiansen and Tate 2011, p. 125; Mineau and Palmer
2013, p. 20; Gibbons et al. 2015, p. 105). However, Federal and State
regulations to protect air and water quality and ban certain pesticides
have likely reduced applications in sagebrush habitats. Generally,
pesticides and herbicides are now used to improve sagebrush habitats
for native wildlife rather than for livestock (Beck et al. 2012, p.
446), and properly applied pesticides should not poison sage-grouse
(Call and Maser 1985, p. 15; APHIS 2002, p. 10). Furthermore, light
applications of some herbicides may benefit sage-grouse by decreasing
the shrub canopy and increasing the cover of grasses and forbs that are
important to sage-grouse during the nesting and brood-rearing periods
(Crawford et al. 2004, p. 2). Therefore, pesticides do not likely
affect more than individual sage-grouse.
Nonrenewable energy development and chemical spills could expose
sage-grouse to contaminants, such as oil, gas, and waste products.
Sage-grouse may encounter harmful radiation, metals, minerals, or
contaminated fluids and waste released by nuclear facilities,
nonrenewable energy developments, and mines (Ramirez and Rogers 2002,
pp. 434-435; Beyer et al. 2004, p. 116; Hansen et al. 2011, p. 593).
Although nonrenewable energy development can expose sage-grouse to
contaminants, there is only one documented case of a dead, oil-covered
sage-grouse discovered in a wastewater pit near an oil and gas well
(Domenici 2008, USFWS, pers. comm.). Deaths or injury from wastewater
pits are likely rare as sage-grouse typically do not require free water
(Schroeder et al. 1999, p. 6) and the intense noise, activity, and lack
of vegetative cover around the pits likely deter sage-grouse.
Therefore, contaminants released from nonrenewable and chemical spills
are not likely to affect more than individual sage-grouse.
Conservation Efforts
The risk of exposure to contaminants is often related to
anthropogenic activities that also present potential impacts to sage-
grouse, such as nonrenewable energy development and mining, as
discussed in other sections of this finding. Any conservation measures
that minimize the exposure of sage-grouse to those activities also
minimize the risk of exposure to contaminants. Regulatory measures
provided by the Federal Plans and the Wyoming Plan limit new
development within important sage-grouse habitat, thus
[[Page 59926]]
potentially reducing the risk of contaminant exposure in those areas
(see Nonrenewable Energy, and Mining). Based on previous Federal plans,
we expect these regulatory mechanisms to be implemented for the next 20
to 30 years.
Summary of Contaminants
While potential exposure to contaminants occurs across the species'
range, the best available information indicates that killing or injury
of birds is rare and has not had population-level impacts. Regulatory
mechanisms that substantially reduce new energy development and mining
in important habitats further reduce the potential for impacts to sage-
grouse. For a detailed discussion of conservation measure
implementation and effectiveness, see Sagebrush Landscape Conservation
Planning.
Military Activity
In 2010, we did not identify military activity as an impact to the
species. Since 2010, we have become aware of several military
facilities that overlap to varying degrees with the occupied range of
sage-grouse and which have confirmed sage-grouse presence. Military
installations in Idaho, Montana, Nevada, Utah, Washington, and Wyoming
encompass less than 1 percent of the currently estimated sage-grouse
range. With the exception of YTC, most of the installations have little
habitat or sage-grouse on the property. The YTC contains one of the two
sage-grouse populations in MZ VI (Stinson and Schroeder 2014, p. 3),
and was designated as a PAC in the COT Report (USFWS 2013, p. 39).
Military training and testing activities have the potential to
negatively impact sage-grouse (Factor E) and their habitats. Training
activities can ignite wildfires resulting in habitat loss and
fragmentation (Factor A). This issue has been a particular concern in
MZ VI, where approximately one quarter of the remaining sage-grouse in
the MZ are located on YTC (Stinson and Schroeder 2013, p. 3). In
addition to impacts from wildfire, habitat can be degraded by cross-
country maneuvers with military vehicles if they crush vegetation,
compact soil, or introduce invasive plants (Stinson and Schroeder 2014,
p. 3). These kinds of impacts are limited, because the levels of
military surface training occurring across the sage-grouse range are
limited.
Compared to surface training, the military manages more extensive
sections of the sage-grouse occupied range as Special Use Airspace for
both testing and training. Military training airspace occurs over
portions of all MZs. Recent research has demonstrated that sage-grouse
are sensitive to noise (Blickley et al. 2012, p. 467); however, this
study did not examine aircraft noise (Blickley et al. 2012, entire).
The behavioral response of sage-grouse to overflight noise has not been
examined. Potential impacts include increased detectability by
predators and disruption of breeding and nesting behavior if sage-
grouse repeatedly flush in response to the noise (Blickley et al. 2012,
pp. 467-470).
The U.S. military must balance its role of public land steward with
its primary mission of maintaining a well-trained, combat-ready
fighting force. The Sikes Act (16 U.S.C. 670a-670f, as amended),
enacted in 1960 with subsequent amendments, provides for cooperation
between the DoD and DOI for planning, developing, and maintaining fish
and wildlife resources on military lands (see Regulatory Mechanisms,
below). The Sikes Act applies to Federal land under DoD control and
requires military services to establish Integrated Natural Resources
Management Plans (INRMPs) to conserve natural resources for their
military installations. Through installation-specific INRMPs, developed
in cooperation with the Service and State fish and wildlife agencies,
the military has implemented conservation and mitigation actions for
sage-grouse.
The YTC continues to manage habitat in Washington that supports one
of two populations of sage-grouse in the State. Management of sage-
grouse and its habitat at YTC is described in the Western Sage-Grouse
Management Plan (Livingston 1998, entire), which is incorporated in the
Cultural and Natural Resource Management Plan (CNRMP) (DoD 2002,
entire). The CNRMP specifies management prescriptions and actions for
sage-grouse and their habitat, including identifying conservation
objectives and measures for habitat quantity and quality necessary for
maintaining a sage-grouse population at or above the 10-year average of
200 birds. Direct protection of sage-grouse and their habitat is done
through timing and area restrictions, including air space restrictions.
Vegetation restoration of sagebrush ecosystems is required to address
habitat impacted by wildfire and military training activities. Wildfire
protection measures are required to prevent, contain, and rapidly
extinguish wildfires. Monitoring of sage-grouse and their habitats,
including monitoring of habitat restoration activities, is conducted
within YTC jurisdictional boundaries.
In 2011, additional measures were implemented to protect sage-
grouse on YTC. The Fort Lewis Army Growth and Force Structure
Realignment Record of Decision's realigned sage-grouse protection area
(SGPA) boundaries to incorporate new sage-grouse habitat use
information and updated habitat management objectives (DoD 2011,
entire). As a result, all but one active lek on the installation are
protected. In addition, vegetation management of five primary
containment areas within SGPAs was changed to fit with wildfire
management objectives; flight restrictions were revised to cover newly
proposed SGPAs; WNv surveillance and control was increased; and
construction of forb greenhouse facilities was proposed for use in
habitat restoration projects. The Army is currently updating the YTC
resource management plan to reflect these improved sage-grouse
conservation measures.
Overall, military installations cover less than 1 percent of the
species' occupied range, and most installations have little or no sage-
grouse habitat on or near their property. The YTC is the only
installation where impacts to sage-grouse are a potential concern, in
part because two of the four populations in MZ VI occur on that
installation. The CNRMP has been effective in minimizing impacts to
these populations, and its implementation is expected to continue into
the future. Based on studies of noise impacts from others activities,
it is possible that overflight noise could affect sage-grouse, but no
research has been done to know if this impact actually occurs and any
assessment of potential impacts would be speculative.
Small Populations
In 2010, we determined that small population size could result in
extirpation of some populations, but was not a threat to sage-grouse
rangewide (75 FR 13910, March 23, 2010, p. 13985). As summarized below,
although small population size likely places some populations at risk
of extirpation, sage-grouse is a widely distributed species with large,
interconnected populations at the core of the range (USFWS 2013, pp.
16-29 and Appendix A). As discussed below, we again find that small
population size is not a rangewide threat to the species, now or in the
future.
Overall, small, isolated populations are more susceptible to
impacts and relatively more vulnerable to extinction due to potential
losses of genetic diversity, demographic and environmental
fluctuations, and susceptibility to environmental
[[Page 59927]]
catastrophes (Pimm et al. 1988, p. 757; Frankham and Ralls 1998, p.
442). As population size decreases, a population's susceptibility to
adverse impacts and its risk of extinction can increase. In general,
the minimum population size needed to sustain the evolutionary
potential of a species has been estimated to be approximately 500 to
5,000 adult individuals so that the population retains sufficient
genetic diversity needed to avoid the detrimental effects of inbreeding
(Traill et al. 2010, p. 32). Although we know of no published estimates
of minimum population sizes in sage-grouse, up to 5,000 individual
sage-grouse may be necessary to maintain an effective population size
of 500 birds based on individual male breeding success, variation in
reproductive success of males that do breed, and the survival rate of
juvenile birds (Aldridge and Brigham 2003, p. 30; 75 FR 13910, March
23, 2010, p. 13985).
A number of sage-grouse populations across the species' range have
been identified as at risk due to their small population size (Figure 9
and Table 14). These small populations (Table 14) may lack connectivity
to other habitats and populations, and may have experienced negative
population impacts from other stressors, such as WNv outbreaks, recent
wildfire, habitat loss, and habitat fragmentation (USFWS 2014b). These
populations may be at increased risk of extirpation due to their
isolation, low population numbers, and continued impacts from natural
and human-caused sources (Pimm et al. 1988, p. 757). Further, these
small populations may be at risk from loss of genetic diversity. For
example, populations in Jackson Hole and Gros Ventre in Wyoming and
southeastern Montana were genetically isolated with reduced genetic
diversity compared to nearby populations (Schulwitz et al. 2014, p.
567). Sage-grouse populations in Canada (MZ I) are also small, with
less than 100 sage-grouse counted in 2012 (Alberta Environment and
Sustainable Resource Development 2013, p. 8). Some of the small
populations have already been estimated below minimum population values
(Garton et al. 2011, entire; WAFWA 2015, entire), suggesting their
ability to persist long term may have already been compromised if that
value is correct.
Although small, some of the identified sage-grouse populations may
not have experienced declines in genetic diversity. For example, small
sage-grouse populations in northern Montana may have a sufficient
number of dispersing sage-grouse to maintain genetic diversity.
Additionally, despite population declines and habitat loss, sage-grouse
populations occupying fragmented landscapes at the northern extent of
the species' range (Bush et al. 2011, p. 539) and in a peripheral
population in northeastern California (Davis et al. in press) exhibited
high genetic diversity with no evidence that these populations were
genetically depressed. However, increased habitat fragmentation could
cause demographic declines in these small, peripheral populations (Bush
et al. 2011, p. 539).
[GRAPHIC] [TIFF OMITTED] TP02OC15.008
[[Page 59928]]
Table 14--Sage-Grouse Populations That Have Been Identified as Small and/or Isolated
[USFWS 2013, pp. 16-29]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Population ID
Management zone No. Population name (state)
--------------------------------------------------------------------------------------------------------------------------------------------------------
I.......................................... 3 Dakotas (ND/SD).
II......................................... 6 Jackson Hole (WY).
11 Laramie (CO/WY).
13 Middle Park (CO).
14 Eagle-South Routt (CO).
III........................................ 21 Strawberry Valley (UT).
22 Carbon (UT).
23 Sheeprock Mountains (UT).
24 Parker Mountain & Emery (UT).
26 Bald Hills (UT).
30 Northwest Interior (NV).
27 Quinn Canyon Range (NV).
\1\ 28 \1\ 28 Ibapah (UT; portion of the Southern Great Basin).
Hamlin Valley (UT; portion of the Southern Great Basin).
IV......................................... 7 Belt Mountains (MT).
10 East Central (ID).
35 Sawtooth (ID).
36 Weiser (ID).
37 Baker (OR).
V.......................................... 31 Warm Springs Valley (NV).
33 Klamath (OR/CA).
VI......................................... 38 Yakama Indian Nation (WA).
39 Yakima Training Center (WA).
40 Crab Creek (WA).
41 Moses Coulee (WA).
VII........................................ 15 Meeker-White River (CO).
16 Parachute-Piceance-Roan Basin (CO).
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ For the purposes of the status review, the Ibapah (UT) and Hamlin Valley (UT) populations were joined with the rest of the southern Great Basin
population.
As summarized above, the potential loss of the small, Columbia
Basin populations in Washington (MZ VI), which contain approximately
0.6 percent of the estimated rangewide abundance (Doherty et al. 2015,
entire), would not represent a significant loss for the status of the
sage-grouse as a whole (See Columbia Basin Population section).
However, the four populations in MZ VI are identified above as being at
risk due to small population size and are reliant on management
actions, such as translocations, to maintain the population size and
its genetic diversity. These populations also face potential habitat
loss and fragmentation from agricultural conversion (See Agricultural
Conversion section above) and military training activities (See
Military Activities section above). Connectivity between these
populations is also very limited (Crist et al. 2015, p. 12). Although
the populations in MZ VI have declined from historical levels, are
exposed to a variety of potential impacts, and have limited
connectivity, population trends in MZ VI are currently stable (WAFWA
2015, pp. 40-41), likely due to active management and translocations.
Further, the State of Washington has protected sage-grouse as a State
threatened species since 1998 and developed a recovery program (Stinson
et al. 2004, entire).
Although some populations of sage-grouse are small and/or isolated
(Table 14), with some at risk of extirpation, the remaining populations
of sage-grouse are well distributed across the overall range of the
species (see Distribution and Population Abundance and Trends, above).
The number and size of these more robust populations provide redundancy
for the sage-grouse, and the wide distribution of the populations
across the species' overall range provides resiliency. Additionally,
the rangewide distribution of the larger populations provides
representation, by capturing the variation of habitat and climatic
conditions across the species' range such that the loss of any of the
small populations will not result in the loss of ecological diversity.
These small or isolated populations represent only a small percentage
of the overall species' range, and the relative population index and
their potential loss may affect connectivity (Crist et al. 2015, p, 18)
but is unlikely to put the entire species at risk now or in the future.
Regulatory Mechanisms
In the 2010 finding, we concluded that existing regulatory
mechanisms were inadequate to protect the species (75 FR 13910, March
23, 2010, p.13982). Since 2010, there have been substantial changes in
regulatory protections for sage-grouse and their habitats (Factor D).
The most significant change is the Federal Plans and the Montana,
Wyoming, and Oregon State Plans, which collectively manage
approximately 90 percent of the breeding habitat (See Sagebrush
Landscape Conservation Planning section above). Combined, these efforts
have substantially improved the regulatory mechanisms across the range
of the sage-grouse since the 2010 finding, such that we now determine
that existing regulatory mechanisms adequately address effects to the
species and its habitats (Factor D). Other Federal and State laws and
local authorities are discussed below.
Federal Laws
In addition to the Federal Plans, other Federal laws provide
regulatory authorities to Federal agencies to address sage-grouse and
habitat management for the species.
Other BLM Authorities--The Mineral Leasing Act of 1920, as amended,
and the Mineral Leasing Act for Acquired Lands of 1947, as amended,
gives the BLM responsibility for oil and gas leasing on BLM, USFS, and
other
[[Page 59929]]
Federal lands, as well as private lands where mineral rights have been
retained by the Federal Government. The Geothermal Steam Act of 1970,
as amended (84 Stat, 1566; 30 U.S.C. 1001-1025), provides the Secretary
of the Interior with the authority to lease public lands and other
Federal lands, including USFS lands, for geothermal exploration and
development in an environmentally sound manner. This leasing authority
has been delegated to the BLM. The BLM implements the Mineral Leasing
Act through 43 CFR 3200.
The General Mining Law of 1872, as amended, opened the public lands
of the United States to mineral acquisition by the location and
maintenance of mining claims. Mineral deposits subject to acquisition
in this manner are generally referred to as locatable minerals.
Locatable minerals include metallic minerals (e.g., gold, silver, lead,
copper, zinc, and nickel), nonmetallic minerals (e.g., fluorspar, mica,
gypsum, tantalum, heavy minerals in placer form, and gemstones), and
certain uncommon variety minerals. Under the new Federal Plans,
locatable minerals have been recommended for withdrawal in the SFAs.
Valid existing rights would not be impacted by these recommended
withdrawals. Withdrawals on BLM and USFS lands are processed under the
BLM's withdrawal regulations (43 CFR 2310) and, if 5,000 acres or more,
shall be subject to the Congressional review provision (43 U.S.C.
1714(c)).
Other Federal Agencies--Other Federal Agencies in the DoD, DOE, and
DOI (including the Bureau of Indian Affairs, the Service, and National
Park Service) are responsible for managing less than 5 percent of the
species' occupied range (Knick 2011, p. 28). Regulatory authorities and
mechanisms relevant to these agencies' management jurisdictions include
the National Park Service Organic Act (39 Stat. 535; 16 U.S.C. 1, 2, 3,
and 4), the National Wildlife Refuge System Administration Act (16
U.S.C. 668dd-668ee), and the Department of the Army's Integrated
Natural Resources Management Plans for their facilities within sage-
grouse habitats. Due to the limited amount of land administered by
these agencies, we have not described them in detail here. However,
most of these agencies do not manage specifically for sage-grouse on
their lands, except in localized areas (e.g., specific wildlife
refuges, reservations). A notable exception, where substantial
populations of sage-grouse occur, is the YTC (discussed above under
Military Activity).
The YTC continues to manage habitat in Washington that supports one
of two populations of sage-grouse in the State. As a joint base, YTC is
now a sub-installation of the Fort Lewis McChord Army installation.
Management of sage-grouse and its habitat at YTC is dictated by
management direction described in their Western Sage Grouse Management
Plan (Livingston 1998, entire), which is tiered to their CNRMP (DoD
2002, entire), combined with changes contained in the Fort Lewis Army
Growth and Force Structure Realignment Record of Decision (DoD 2011,
entire) (also known as Grow the Army). The 2002 CNRMP is currently
being updated into a newer Integrated Natural Resources Management
Plan, but is not yet final. The Grow the Army Final Environmental
Impact Statement analyzed the environmental and socioeconomic impacts
of stationing approximately 5,700 soldiers and their families at Fort
Lewis and additional aviation, maneuver, and live-fire training needs
at both installations.
The CNRMP specifies management prescriptions and actions for sage-
grouse and their habitat, including identifying conservation objectives
and measures for habitat quantity and quality necessary for maintaining
a sage-grouse population at or above the 10-year average of 200 birds.
Direct protection of sage-grouse and their habitat (i.e., mating,
nesting, and brood-rearing) is achieved through timing and area
restrictions, including air space restrictions. Vegetation restoration
of sagebrush ecosystems is required to address habitat impacted by
wildfire and military training activities. Wildfire protection measures
are required to prevent, contain, and rapidly extinguish wildfires.
Monitoring of sage-grouse and their habitats, including monitoring of
habitat restoration activities, are conducted within YTC jurisdictional
boundaries. Army participation in sage-grouse recovery planning efforts
and adaptive management through implementation reviews are also
required.
The Grow the Army Record of Decision realigned sage-grouse habitat
and core use area protection boundaries to incorporate new sage-grouse
habitat use information and updated habitat management objectives. New
leks were incorporated into the management scheme, SGPAs were
reconfigured, vegetation management of fire primary containment areas
within SGPAs were changed to fit with wildfire management objectives,
flight restrictions were revised to cover newly proposed SGPAs, WNv
surveillance and control was increased, and construction of forb
greenhouse facilities were proposed for use in habitat restoration
projects. The SGPAs currently protect almost all active leks at YTC.
The Grow the Army Record of Decision also established Army commitment
to updating their Sage-Grouse Management Plan; participating in
sagebrush ecosystem conservation partnerships to promote sagebrush
ecosystem conservation, restoration, and protection from wildfire in
and around the PAC; and establishment of a candidate conservation
agreement with the Service.
Coal mining is regulated by the provisions identified in the
Surface Mining Control and Reclamation Act of 1977 (SMCRA), which is
implemented by the Office of Surface Mining and Reclamation. This
Federal law requires consideration of fish and wildlife resource
information for the permit and adjacent area, including species listed
under the Endangered Species Act, along with a detailed analysis by the
permittee on how impacts will be minimized or avoided. SMCRA also
requires that activities permitted under this law cannot result in the
jeopardy of a listed species, or the destruction of adverse
modification of designated critical habitat. Species-specific standards
and procedures must also be developed if necessary to protect listed
species and their habitats (USFWS 1996). Permittees must also include a
plan for enhancement of fish and wildlife resources on the permit area.
While SMCRA does not specifically address candidate species, protection
must be given to all potential future listed species that may be
affected by coal mining activities (USFWS 1996, p. 4).
The OSM has delegated the regulatory authority for implementing
SMCRA to five States within the range of sage-grouse: Wyoming, Montana,
Utah, Colorado, and North Dakota. Sage-grouse, therefore, must be
considered in the implementation of SMCRA, and coal mining, in those
States. The implementation agency must consider impacts on fish and
wildlife, including sage-grouse. Sage-grouse are also typically
addressed in all States within the species' range during the
development of coal resources simply due to its status as a State trust
resource.
State Mining Regulations
The Utah Executive Order provides a regulatory mechanism to
minimize potential effects from mining to sage-grouse habitat on State
and private lands (Utah EO 2015-002). The Utah Executive Order requires
the Utah Division of Oil, Gas and Mining to coordinate with the Utah
Division of Wildlife Resources before issuing
[[Page 59930]]
permits for energy development. The Executive Order further directs the
Utah Division of Oil, Gas and Mining to implement recommendations
provided by the Utah Division of Wildlife Resources that could require
avoidance and minimization measures on State and private lands
consistent with the conservation plan. However, these measures are
subject to the statutory requirements to protect rights on private
property and avoid waste of the mineral resource.
State General Wildlife Protection Laws
All States across the range of sage-grouse have laws and
regulations that provide for the general protection, conservation,
propagation, management, and use of wildlife and that regulate the
taking of wildlife, including sage-grouse (see Connelly et al. 2004,
pp. 2-2 through 2-11). While these statutes limit direct taking of
sage-grouse, none provide specific and binding protections for sage-
grouse habitat.
Many States have laws to list and protect threatened and endangered
species, but these laws vary in their statutory provisions to protect
species from threats (George and Snape 2010, pp. 345-346). Sage-grouse
are listed as a threatened species by the State of Washington under the
authorities of RCW 77.12.020. Threatened status in Washington means
that a species cannot be hunted (WAC 2015, 232-12-011) and also
requires the State to develop a recovery plan, which must include
target population objectives, criteria for reclassification, an
implementation plan, and a monitoring plan (WAC 2015, 232-12-297).
However, implementation of recovery plan actions is discretionary and
subject to funding.
Several States list the sage-grouse as a ``species of concern,''
(e.g., Montana) or ``species of special concern (e.g., California,
South Dakota), but these are administrative designations and do not
afford any substantive regulatory protections.
State Sage-Grouse Hunting Regulations
Sage-grouse hunting is regulated by State wildlife agencies.
Hunting seasons are reviewed annually, and States can adjust limits on
updated abundance information and adaptive management criteria
established in State wildlife management plans. States maintain
flexibility in hunting regulations through emergency closures or season
changes in response to unexpected events that affect local populations.
As discussed in more detail under the Hunting section, 8 of the 11
States with sage-grouse had open hunting seasons for sage-grouse in
2014, with hunting prohibited in Washington, South Dakota, North
Dakota, and Canada (Aldridge and Brigham 2003, p. 25; Connelly et al.
2004, p. 6-3; Stinson et al. 2004, p. 1). In 2014, Montana closed
hunting of sage-grouse across much of the State and reduced the length
of the hunting season to respond to population declines (Montana Fish,
Wildlife and Parks 2014). South Dakota closed its hunting season for
sage-grouse in 2013 and 2014. As evidenced by recent changes, States
can and have adopted more conservative hunting seasons based on new
information and population levels. Rangewide, hunting seasons are more
conservative than in the past, which has resulted in a large reduction
in sage-grouse hunting mortality. Therefore, hunting regulations are
adequate in managing hunting impacts to sage-grouse.
State Noxious Weed Laws
Some State regulations require that landowners control noxious
weeds on their property, but designations of noxious weeds and the
development of noxious weed lists vary by State. For example, only five
States list medusahead as a noxious, regulated weed, but the grass is
problematic in at least two additional States. Similarly, despite the
proliferation of cheatgrass across the range of the sage-grouse,
Colorado is the only western State that recognizes the grass as a
noxious weed (USDA 2015). Therefore, State regulations that address
noxious weeds may help reduce impacts to sage-grouse in local areas,
but large-scale control of the most problematic invasive plants is
currently unfeasible and uncoordinated (Pyke 2011, p. 543; Ielmini et
al. 2015, pp. 2-3). While State noxious weed laws are not effectively
addressing potential impacts from invasive plants, measures provided by
the Federal and State plans, as discussed above, have substantially
reduced the potential threat of invasive plants (see Wildfire and
Invasive Plants).
Canadian Federal and Provincial Laws and Regulations
Sage-grouse were first listed in Canada in 1997 as threatened by
the Committee on the Status of Endangered Wildlife in Canada because of
very small and declining populations in Saskatchewan and Alberta. The
species' status was changed to endangered in 1998, and sage-grouse are
now federally protected in Canada as an endangered species under
schedule 1 of the Species at Risk Act (SARA). This designation protects
sage-grouse and their nests and eggs on Federal lands and prohibits
unauthorized killing, harming, harassing, capturing, taking,
possessing, collecting, buying, selling, or trading of individuals of
the species (SARA 2002, p. 17). SARA also provides for identification
of habitat on Federal lands that is critical to the survival and
recovery of species designated as threatened or endangered, and the
Canadian Government is responsible for ensuring that critical habitat
is protected. Although voluntary measures are the preferred method for
protecting critical habitat, SARA provides the means for the government
to promulgate regulations to ensure that critical habitat is not
destroyed (SARA 2002, pp. 27-30). However, at this time, no such
regulations have been developed for sage-grouse critical habitat.
On December 4, 2013, the Canadian Government issued an Emergency
Order for the protection of the sage-grouse under SARA (CWS 2013,
entire). The Emergency Order prohibits construction of new tall
(greater than 1.2 m [3.9 ft]) structures, new roads, and new fences and
destruction of native plants, and requires nightly noise reduction in
April and May (CWS 2013, p. 112). These restrictions apply to critical
habitat identified on 1,672 km\2\ (646 mi\2\) of Federal and provincial
crown lands in southeastern Alberta and southwestern Saskatchewan (CWS
2013, p. 111).
In 2014, the Canadian Government finalized an amended recovery
strategy for sage-grouse (Environment Canada 2014, entire). In addition
to updating the 2008 document to reflect the most recent scientific
information about the status of sage-grouse in Canada and establishing
population objectives, the 2014 amended strategy completed the
identification of critical habitat for the species in accordance with
SARA (Environment Canada 2014, p. 23). The 2008 recovery strategy did
not identify critical habitat, citing a lack of information (Lungle and
Pruss 2008, p. 27). In 2009, a replacement for the critical habitat
section of the strategy identified ``necessary, but not sufficient''
critical habitat in breeding, nesting, and brood-rearing habitat for
sage-grouse in Alberta and Saskatchewan (Lungle and Pruss 2009, p. 2)
for a total of 165 km\2\ (63 mi\2\). The amended recovery strategy
identifies 2,812 km\2\ (1,086 mi\2\) of year-round habitat and 12.5
km\2\ (4.8 mi\2\) of lek critical habitat in Saskatchewan and Alberta
(Environment Canada 2014, pp. 23-30). Therefore, as a result of the
amended recovery strategy and the Emergency Order combined, a total of
3,354 km\2\ (1,295 mi\2\) of Federal and provincial crown lands in
Saskatchewan and Alberta, including Grasslands National Park in
Saskatchewan, is
[[Page 59931]]
identified as critical habitat for sage-grouse (Environment Canada
2014, p. iv; Parks Canada 2015, p. 693). The amended recovery strategy
also includes numerous nonregulatory actions for the protection of
critical habitat and the recovery and conservation of sage-grouse.
The sage-grouse is listed as endangered at the provincial level in
Alberta and Saskatchewan, affording additional protections to the
species on provincial and private lands. Recreational hunting has been
closed in Saskatchewan since at least the 1930s (Weiss and Prieto 2014,
p. 1), and in Alberta since 1995 (Alberta Environment and Sustainable
Resource Development 2013, p. 1). In Saskatchewan, sage-grouse were
designated as threatened in 1987 under The Wildlife Regulations
(Saskatchewan 1981, entire), and as endangered in 1999 under the
province's Wildlife Act of 1998 (Weiss and Prieto 2014, pp. 1, 13). The
Wildlife Act states that, without a license, no one may ``kill, injure,
possess, disturb, take, capture, harvest, genetically manipulate or
interfere with or attempt to do any of those things . . . export or
cause to be exported from Saskatchewan . . . [or] traffic in''
designated species (Saskatchewan 1998, p. 20). Sage-grouse habitat in
Saskatchewan is protected under The Wildlife Habitat Protection Act,
which prohibits sage-grouse habitat from being sold or cultivated
(Saskatchewan 1983, p. 4). Restrictions put in place under the Wildlife
Act formerly prohibited development within 500 m (1,640 ft.) of leks
and prohibited construction activities within 1,000 m (3,281 ft.) of
leks between March 15 and May 15 (Aldridge and Brigham 2003, p. 32). In
our 2010 finding, we deemed these buffers inadequate to protect sage-
grouse from disturbance. These activity restrictions were revised in
2012 to increase lek buffers to 3,200 m (10,499 ft.); include 1,000-m
(3,281-ft) buffers between development and lekking, brood-rearing, and
wintering habitat; and make these restrictions apply year-round instead
of only during the breeding season (Environment Canada 2014, p. 16;
Weiss and Prieto 2014, p. 13).
Alberta's Wildlife Act requires that an Endangered Species
Committee provide recommendations to the provincial Minister regarding
designation of endangered species in Alberta and development of
recovery plans, which may include population goals, conservation
strategies, and the identification of critical habitat (Alberta
Wildlife Act 2000, p. 13). The law states that ``[a] person shall not
willfully molest, disturb or destroy a house, nest or den of prescribed
wildlife'' (Alberta Wildlife Act 2000, p. 25), but does not require
development and implementation of recovery plans for species designated
as endangered. However, Alberta Environment and Sustainable Resource
Development has designated more than 3,880 km\2\ (1,500 mi\2\) as
conservation habitat for sage-grouse, including areas adjacent outside
of federally identified critical habitat (Nicholson, Alberta
Environment and Sustainable Resource Department, 2015, pers. comm.).
All known active and inactive leks are protected by 12-ha (30-ac)
Protective Notations designated by the Province, and Protective
Notations covering the range of sage-grouse in Alberta prohibit public
land sales and potentially restrict surface development (Alberta
Environment and Sustainable Resource Development 2013, pp. 19-20). In
addition, in 2013 the Alberta Department of Energy restricted all new
surface access for oil and gas development through subsurface addenda
to leases or other drilling rights accorded to private businesses
(Nicholson, Alberta Environment and Sustainable Resource Department,
2015, pers. comm.). Aside from Protective Notations, regulation of new
surface access, and the protection of individual sage-grouse by
provincial law, efforts to recover the species and protect its habitat
in Alberta (e.g., Alberta Environment and Sustainable Resource
Development 2013, pp. 18-21) are nonregulatory.
Regulatory Mechanisms Summary
In 2010, we concluded that regulatory mechanisms in place at that
time were not adequate to reduce the threats to the species and its
habitat, and that the absence of adequate regulatory mechanisms was a
threat to the species, then and into the foreseeable future. Since
then, there have been major changes in the regulatory mechanisms that
avoid or minimize impacts to sage-grouse and their habitats. Most
importantly, BLM and USFS adopted amended or revised Federal Plans to
conserve sage-grouse over more than half of its occupied range (See
Federal Plans section above). The Federal Plans include provisions to
address activities that could occur in sage-grouse habitats and threats
identified in 2010 as having inadequate regulatory measures including:
Oil and gas development, wildfire and invasive plants, infrastructure,
and improper livestock grazing. In addition, the Federal Plans include
provisions to avoid or minimize impacts authorized in sage-grouse
habitats for monitoring, adaptive management, limitations on
anthropogenic disturbance, and requirements for mitigation. The Federal
Plans are the foundation of land-use management on BLM and USFS managed
lands. We are certain that the Federal Plans will be implemented and
that the measures included are based on the best scientific information
and are effective at avoiding and minimizing impacts to the species and
its habitat.
Since 2010, of the 11 States within the occupied range of the sage-
grouse, 10 have revised and adopted grouse conservation plans and
regulatory mechanisms to address threats to the species and its habitat
identified in 2010. State sage-grouse conservation plans in Wyoming,
Montana, and Oregon contain regulatory mechanisms that minimize impacts
to the species and its habitat. Since 2008, the Wyoming Plan has
effectively minimized impacts within core habitats, protecting the
highest density areas for the species within the State. The Montana and
Oregon regulatory mechanisms include proven conservation measures,
including disturbance caps, density restrictions, and lek buffers, to
minimize disturbance to important habitats. In combination, the Federal
and three State plans, cover 90 percent of the sage-grouse breeding
habitat. Taken together, these efforts have substantially altered the
regulatory landscape across the range of sage-grouse since the 2010
finding, such that we now determine that existing regulatory mechanisms
adequately address effects to the species and its habitat (Factor D).
Other Conservation Plans
Since 2010, all States except California have drafted, revised,
finalized, or implemented conservation plans for the sage-grouse to
address threats to the sage-grouse. These plans take different
approaches, but in general, they identify important conservation
objectives and provide mechanisms to incentivize conservation. We
anticipate that state plans and related efforts will continue into the
future and will strengthen as implementation continues. In this section
we provide a summary of the non-regulatory conservation plans (See
Conservation Efforts section above for a description of the Wyoming,
Montana, and Oregon Plans and the Regulatory Mechanisms section above
for a description of the Utah Executive Order).
California
California does not have a State Sage-grouse Conservation Plan.
California
[[Page 59932]]
recognizes sage-grouse as a State-species of special concern that
should be considered during the State's environmental review process.
The California Environmental Quality Act (CEQA) (Public Resources Code
sections 21000-21177) requires that State agencies, local governments,
and special districts consider impacts that their proposed project may
have to species of concern, including sage-grouse.
Colorado
Colorado has contributed to greater sage-grouse conservation and
research, working with numerous partners over the last several decades.
This coordination spans from local and State levels, to rangewide
participation. The State conservation plan for greater sage-grouse
(State of Colorado 2008, entire) has been implemented since 2008 over
1.5 million ha (approximately 3.7 million ac) across all landownership
types. The plan uses voluntary conservation strategies to address and
promote the conservation of sage-grouse in Colorado. It provides
guidance to address impacts to sage-grouse from habitat fragmentation
and conversion, agriculture, urbanization, conifer encroachment,
recreation, nonrenewable energy, and other impacts.
The plan and the State of Colorado recommend measures to help
reduce impacts from nonrenewable energy development. Colorado
regulations require that effects to sage-grouse be considered by the
Colorado Oil and Gas Conservation Commission (COGCC) and the Colorado
Department of Reclamation and Mining Safety during their permitting
processes. In addition, Colorado Parks and Wildlife (CPW) makes
recommendations based on the State's conservation plan designed to
reduce impacts to greater sage-grouse from nonrenewable energy
development (State of Colorado 2008, pp. 22, 109, 123, 313, 325-331).
In addition, the State of Colorado issued an Executive Order
(Colorado E.O. D 2015-004) in May 2015 to promote the conservation of
greater sage-grouse and further implement the 2008 conservation plan.
This order enhances communication and coordination among State
agencies, including CPW, the State Land Board, and COGCC, as well as
designating a single point of contact for external greater sage-grouse
communications. Under the order, the COGCC will evaluate its existing
wildlife siting rules for potential improvement and develop a
comprehensive tracking system for development in sensitive wildlife
habitat. Lastly, the order also prioritizes the completion of the
Colorado Habitat Exchange, a voluntary compensatory mitigation tool for
impacts to the species.
Dakotas
North and South Dakota finalized State management plans that
emphasized working cooperatively with private landowners due to the
relatively large acreages of private lands in those States. Both States
have provided assistance working through the Sage Grouse Initiative
under NRCS and are continuing sage-grouse research efforts to
prioritize the best sage steppe habitat for conservation, expand core
areas, and further their understanding of WNv. Both States have closed
sage-grouse hunting seasons.
South Dakota has provided additional firefighting resources and in
the past has restricted off-road travel if drought conditions may
elevate fire danger during hunting seasons (State of South Dakota 2014,
p. 23). Further, the South Dakota Department of Game, Fish and Parks
works with the South Dakota School and Public Lands Office, Public
Utilities Commission, and the Department of Environment and Natural
Resources to provide comments and input if oil and gas development,
wind development, or other proposed projects may impact sage-grouse
core areas (State of South Dakota 2014, pp. 23, 24).
Idaho
Earlier this year, the Governor signed an Executive Order adopting
Idaho's Sage-grouse Management Plan, which focuses on the management of
invasive vegetation, fuels and wildfire (Idaho E.O. 2015-04). The plan
provides wildfire suppression guidance to complement Secretarial Order
3336, and commits the State to assist with fire rehabilitation and with
implementation of fuel breaks, weed control, and conifer removal in
mixed State and Federal ownerships. Under the plan, Idaho assumes
responsibility for development, coordination, and equipping and
training for Rangeland Fire Protection Associations to provide rapid
response to sagebrush fires. In FY 2016 the Idaho legislature
appropriated over $500,000 for various sage-grouse conservation efforts
of which $120,000 was dedicated to better support RFPA implementation
and effectiveness (S-1128). In Idaho, RFPAs currently account for
approximately 230 firefighters in 6 areas in Idaho resulting in
protection of approximately 5.7 million acres within greater sage-
grouse habitat. An additional 4 RFPAs are in development within greater
sage-grouse habitat. Idaho's Governor directed that all State agencies,
to the extent consistent with existing State law, apply the elements of
Idaho's Sage-grouse Plan to all land ownerships across the State (Idaho
E.O. 2015-04).
Nevada
The State of Nevada has implemented several measures to conserve
habitat in the State. On September 26, 2008, the Governor of Nevada
signed Executive Order 2008-10-29 calling for the preservation and
protection of sage-grouse habitat in the State of Nevada. The Executive
Order directs the Nevada Department of Wildlife (NDOW) to work with
State and Federal agencies and the interested public to implement
Nevada's conservation plan for sage-grouse (Nevada E.O. 2008-10-29).
The Executive Order also directs other State agencies to coordinate
with the NDOW in these efforts. Further, the Nevada Conservation Credit
System establishes a mitigation market to facilitate exchanges between
credit sellers and buyers. In November 2012, the Governor signed
Executive Order 2012-09 establishing the Sagebrush Ecosystem Council, a
multiagency and multidiscipline group that was tasked with developing a
conservation strategy for sage-grouse in Nevada. In October 2014, the
Sagebrush Ecosystem Council finalized the Nevada Greater Sage-grouse
Conservation Plan (State of Nevada 2014, entire). The Nevada plan
creates the Conservation Credit System, which creates financial
incentives for private landowners to conserve sage-grouse habitat for
use as compensatory mitigation. Nevada's plan requires that any
development that affects greater sage-grouse habitat in Nevada will
need to acquire credits to compensate for those effects before the
development proceeds. In addition, on June 23, 2015, the Governor
signed emergency regulations related to the formation of Rural Fire
Protection Associations (RFPAs) within the State of Nevada (NRS 472 per
AB 163, sec. 3.5(1) of the 78th Session of the Nevada legislature).
RFPAs, as seen in other States, help support fire suppression efforts
by adding capacity and resources for fire suppression.
Utah
Utah issued a final conservation plan for the sage-grouse on
February 14, 2013, and the Governor of Utah's Executive Order (Utah
E.O. 2015/002) mandated its implementation on February 25, 2015. Utah's
Plan and Executive Order includes mechanisms aimed at addressing
threats to sage-grouse associated with fire, invasive species,
predation, conifer
[[Page 59933]]
encroachment, recreation, energy development, and the removal of
sagebrush. The Utah Plan applies to all lands within the State's 11
Sage-Grouse Management Areas (SGMAs) across approximately 3 million ha
(7.5 million ac), which conserves 90 percent of the State's greater
sage-grouse habitat and approximately 94 percent of the State's
population. Many of the conservation measures in the plan are voluntary
and rely on negotiated incentive-based covenants, easements, or leases
to achieve conservation on private lands, School and Institutional
Trust Administration Lands, and local government lands (See Regulatory
Mechanisms section above for a discussion of the Utah Executive Order).
In 2014, Utah's incentive-based approach, coupled with efforts from
State, Federal, and private partners, exceeded the Utah conservation
plan objectives, reporting 249,170 acres of habitat enhancement and
restoration (UDNR 2014, p. 5).
The Utah Plan addresses fire control, suppression, and
rehabilitation by providing an organizational framework for partners to
prioritize suppression efforts and fire rehabilitation, and leverage
funding and agency resources (State of Utah 2013, p. 13). The Utah
Governor's Executive Order also directs the Utah Division of Forestry,
Fire and State Lands to prioritize fuels-mitigation activities and pre-
attack planning and coordination with other Federal and local fire
suppression partners, second only to the protection of human life and
structures (State of Utah 2015, p. 4). Furthermore, the Utah Governor's
Catastrophic Wildfire Reduction Strategy was completed in 2013,
establishing a Statewide steering committee and regional working groups
to develop a Statewide risk map that will include prioritized sage-
grouse habitat areas (UDNR 2014, page 10).
Washington
Sage-grouse are State-listed as threatened in Washington. The
State's recovery plan and actions implemented to date have relied
heavily on voluntary conservation actions, on which the State and its
partners have made progress (Stinson et al. 2004, entire). For example,
sage-grouse have been translocated to the Columbia Basin from Idaho,
Oregon, Nevada, and Wyoming to help supplement and maintain the
Washington population (Livingston et al. 2006, pp. 2-3; Schroeder et
al. 2014, pp. 8, 14-15).
Finding
As required by the Act, we considered the five factors in assessing
whether the sage-grouse is endangered or threatened throughout all of
its range. We examined the best scientific and commercial information
available regarding the past, present, and foreseeable future threats
faced by sage-grouse. Foreseeable future describes the extent to which
we can reasonably rely upon predictions about the future (DOI 2009). In
this context, ``reliable'' does not mean ``certain'': It means
sufficient to provide a reasonable degree of confidence in the
prediction. Because information for each threat may be reliable for
different periods of time, each threat may have different extents of
foreseeability. The final conclusion may be a synthesis of this
information.
For the purposes of this determination, we conclude that the
foreseeable future is 20 to 30 years. This timeframe is based on the
time horizons for which various threats can be reliably projected into
the future. Many of the analyses on which we have relied, such as the
fire modeling and the period for climate change predictions, cover a
30-year timeframe. Additionally, other potential threats will be
governed by Federal and State Plans across the most important habitats
as long as these plans are in place. Based on our assessment of
existing BLM and USFS land use plans, the typical lifespan is 20 to 30
years (BLM 2015g). While these plans are in place, the extent of
impacts from energy development, infrastructure, grazing, mining, and
other regulated activities will be dictated by stipulations in these
plans. Therefore, we can reliably predict over 20 to 30 years the
extent of impacts from fire, climate change, and potential effects to
the species and habitat addressed by the Federal Plans. Beyond these
timeframes is a high degree of uncertainty, which precludes credible
predictions of the effectiveness of actions that will be implemented
beyond the planning horizon and how the species may or may not respond.
Exceeding this timeframe, we have concluded, goes into the realm of
speculation.
Our regulations direct us to determine if a species is endangered
or threatened due to any one or a combination of the five threat
factors identified in the Act (50 CFR 424.11(c)). We consider
cumulative effects to be the potential threats to the species in
totality and combination; this finding constitutes our cumulative
effects analysis. The discussions above evaluated the individual impact
of the following potential threats to the sage-grouse: Nonrenewable
energy development (Factor A), infrastructure (Factor A), agricultural
conversion (Factor A), wildfire and invasive plants (Factor A and E),
improper grazing (Factor A), free-roaming equids (Factor A), conifer
encroachment (Factor A), mining (Factor A), renewable energy (Factor
A), predation (Factor C), disease (Factor C), urbanization (Factor A),
recreation (Factor A), climate change (Factor E), drought (Factor A),
hunting (Factor B), scientific and educational use (Factor B),
contaminants (Factor A), military activities (Factor A), and small
populations (Factor E). We also evaluated the inadequacy of existing
regulatory mechanisms (Factor D). As discussed above, based on new
information and effective regulatory mechanisms implemented since the
2010 finding, we determined that none of these impacts are substantial
threats to the sage-grouse individually. Additionally, despite past
reductions in occupied range, sage-grouse currently occupy 56 percent
of their historical range. In this section, we evaluate whether some or
all of these impacts act cumulatively to increase the overall scope and
magnitude of potential effects to the sage-grouse now and into the
foreseeable future such that cumulative effects are a threat to the
species.
The sagebrush ecosystem has changed over time. Prior to the
influence of human settlement, the sage-grouse inhabited parts of 13
states and 3 Canadian provinces. Before European settlers converted
sagebrush habitats to croplands and pasturelands in the 1800s, natural
events, such as blizzards, droughts, and large wildfires historically
impacted sage-grouse. With the arrival of European settlers,
agricultural conversion, urbanization, energy development, and other
activities increased the loss and fragmentation of sage-grouse habitats
across the overall range. Due to the historical loss and fragmentation
of sagebrush habitats, sage-grouse now occupy approximately 56 percent
of their historical range. Despite historical losses of occupied range,
today the sage-grouse is relatively well-distributed across portions of
11 states and 2 Canadian provinces. The sagebrush ecosystem upon which
the sage-grouse depends remains one of the largest, most widespread
ecosystems in the United States, spanning approximately 70 million ha
(173 million ac).
Declines in the extent of the sagebrush ecosystem and sage-grouse
populations have been a concern for more than 25 years. Since 1999, we
have reviewed 8 petitions and reviewed the status of the species 3
times. In our first evaluation completed in 2005, we found that listing
the sage-grouse was not warranted because the species occurred over a
large area and potential threats
[[Page 59934]]
were not well defined. In 2010, we determined that sage-grouse were
warranted for listing due to a long-term decline in abundance
throughout their range, habitat loss and fragmentation, and inadequate
regulatory mechanisms to address threats.
The 2010 finding serves as the baseline for this current review. In
the 2010 finding, we concluded that sage-grouse was warranted for
listing because of habitat loss and fragmentation due to a variety of
causes, such as nonrenewable energy development, agricultural
conversion, wildfire, and infrastructure and the inadequacy of
regulatory mechanisms to address these conditions. We acknowledged the
existence of substantial landscape elements containing high-quality
habitat and abundant sage-grouse, particularly in southwestern Wyoming
and in the northern Great Basin, but expressed concern that, without
adequate regulatory mechanisms, habitat loss, and abundance, declines
would continue (75 FR 13910, March 23, 2010, pp. 13986-13988). As noted
in that finding, when determining its listing priority status, we
considered the threats that the sage-grouse faced to be moderate in
magnitude because the threats did not occur everywhere across the
range, and, where they were occurring, they were not of uniform
intensity or of such magnitude that the species required listing
immediately to ensure its continued existence. While sage-grouse
habitat had been lost or altered in many portions of the species'
range, substantial habitat still remained to support the species in
many areas of its range (75 FR 13910, March 23, 2010, pp. 14008-14009).
In the 2010 finding, we identified the types of conservation
actions that would remediate or ameliorate these threats, and
encouraged land managers and other interested parties to implement such
measures. In particular, we noted that the Federal Plans could provide
adequate regulatory mechanisms to address the threats of nonrenewable
and renewable energy development and infrastructure if they were
amended to consider sage-grouse conservation needs (75 FR 13910, March
23, 2010, p. 13982). Further, we recommended changes in prevention,
suppression, and restoration activities to address threats from the
wildfire and invasive plant cycle. This current finding describes the
extent to which recent conservation efforts--particularly the Federal
and State Plans--have addressed the impact of potential threats and
positively affected the species' status.
Since 2010, Federal and State agencies have collaborated on the
development of landscape-scale conservation efforts to protect the most
important habitats across the range of the species (as discussed in
detail in Changes Since the 2010 Finding, above). The 2013 COT Report
outlined where those most important habitats occurred (also known as
PACs) and identified them as the areas necessary for species'
resilience, redundancy, and representation. The COT Report also
provided conservation objectives and recommended conservation actions
to preserve the PACs and served as the foundation of a landscape-level
conservation strategy (Federal, State, and private) developed and
implemented by BLM, USFS, SGI, the States of Wyoming, Montana and
Oregon, and private landowners. Together, the Federal Plans, Wyoming
Plan, Montana Plan, and Oregon Plan reduce potential threats on 90
percent of sage-grouse breeding habitat across the species' range.
These conservation efforts result in the preservation of large expanses
of undisturbed habitat supporting the largest, best-connected sage-
grouse populations into the foreseeable future.
The Federal Plans, Wyoming Plan, Montana Plan, and Oregon Plan
provide adequate regulatory mechanisms to reduce the threats of human-
caused habitat disturbance on the most important sage-grouse habitats
(as discussed in detail in the Changes Since the 2010 Finding, above).
The Federal Plans designate PHMAs, and the State Plans designate Core
Areas, all of which correspond closely with the PACs identified in the
COT Report and include important breeding and seasonal habitats for the
species. The PHMAs and Core Areas are managed for sage-grouse habitat
objectives, primarily by excluding or avoiding major new surface-
disturbing activities that could cause habitat destruction (BLM and
USFS 2015, entire). For example, in many important habitats, the
Federal Plans require NSO for nonrenewable energy development, which
results in no new oil and gas wells or associated infrastructure being
constructed within PHMAs. For the few ongoing land uses that could
continue to occur in PHMAs, such as limited wind development in certain
areas and existing rights for nonrenewable energy or mining, the
Federal, Wyoming, Montana, and Oregon Plans work together to limit the
total amount of human-caused habitat disturbance on PHMAs and Core
Areas to no more than 3 to 5 percent. To prevent indirect impacts to
sage-grouse that could occur from land uses in areas outside of PHMAs
and Core Areas, the Federal Plans, Wyoming Plan, Montana Plan, and
Oregon Plan all require lek buffers so that breeding birds will not be
disturbed by human activities. Lastly, the Federal Plans require any
project that may adversely affect sage-grouse (in both PHMA and GHMA)
to minimize impacts by implementing RDFs and mitigating to a net
conservation benefit for sage-grouse. As a result of these measures,
the Federal and three State Plans reduce the potential threat of
habitat loss caused by human-caused disturbances on approximately 90
percent of breeding habitat across the species' range. These measures
were effective immediately upon the implementation of the Federal
Plans, the Wyoming Plan, the Montana Plan, and the Oregon Plan and will
be in place for the next 20 to 30 years.
Wildfire and its interaction with invasive annual grasses,
especially cheatgrass, is a significant risk to the sage-grouse and its
habitat. In 2010, we determined that the combination of wildfire and
invasive plants was a threat to the sage grouse and a major contributor
to our finding that protection for the sage-grouse was warranted. Some
wildfires will continue in the Great Basin, as we cannot manage the
lightning strikes that spark many wildfires. Between 2000 and 2014,
just less than one percent of sage-grouse habitat has burned per year.
A recent modeling study predicts there could be a 43 percent decline in
sage-grouse abundance within the next 30 years unless effective
management is implemented to reduce the effects of wildfire and
invasive plants.
The Federal and State Plans include commitments to change ongoing
land uses and to prioritize wildfire management and invasive plant
treatments in ways that reduce the synergistic threat of flammable
invasive vegetation and altered wildfire regimes to sage-grouse
habitats (as discussed in detail in Changes Since the 2010 Finding,
above). Within the Great Basin, where wildfire is most prevalent, the
majority of breeding habitat is in habitats that are most resilient to
invasive plants and wildfire. To reduce the magnitude and severity of
future wildfires, FIAT assessments prioritize wildfire and invasive
plant management strategies in those most resilient areas that reduce
the risk of habitat loss from wildlife and invasive plants. Fire and
its impacts will be managed across the landscape by the implementation
of the FIAT assessments and the Secretarial Order that prioritize
suppression of wildfire in sage-grouse habitat. When a wildfire occurs
in sage-grouse habitat, suppression in sage-grouse habitat will
[[Page 59935]]
continue to receive the highest priority allocation of wildfire
suppression and rehabilitation management, after human safety. After a
wildfire, the FIAT assessments and the commitments in the Secretarial
Order ensure that restoration will be initiated in the immediate
aftermath of the fire, when restoration is most effective in preventing
invasive plant infestations. To reduce impacts from grazing and free-
roaming equids that could stimulate the wildfire and invasive plant
cycle, the Federal Plans require that livestock and free-roaming equids
be managed at levels that achieve sage-grouse habitat objectives in the
4.5 million ha (11 million ac) of SFAs, and after that in the 14
million ha (35 million ac) of PHMA. Implementation of these measures
began in 2015, with the completion of the Secretarial Order, and will
continue throughout the 20- to 30-year lifespan of the Federal Plans.
The work needed to protect the highest priority areas for conservation
(SFAs) will be completed within 5 years (BLM 2015h, entire; DOI 2015a,
p. 3). The new focus and prioritization of wildfire suppression and
restoration for sage-grouse is an unprecedented change in wildfire
fighting in sagebrush habitats that has been successfully implemented
during the 2015 wildfire season. As described in the Wildfire and
Invasive Plants section above, we expect the Secretarial Order and all
other wildfire related actions will be implemented and effective. This
sustained change in wildfire strategies reduce the risk that fire and
invasive plants are likely to impact sage-grouse now and into the
future. While we expect to see some continued loss of habitat and sage-
grouse in the future due to wildfire and invasive plants, we do not
expect that the species will be at risk of extinction or likely to
become so due to risks posed by wildfire and invasive plants.
In addition to the benefits provided by the regulatory mechanisms
and management activities in PHMAs and SFAs, the Federal Plans require
new minimization measures in GHMA, where habitat is important for
connectivity between populations and restoration opportunities (as
discussed in detail in Changes Since the 2010 Finding, above). In GHMA,
the plans reduce potential threats from human-caused disturbances by
avoiding certain uses, such as infrastructure. When land-uses are
allowed, science-based lek buffers (Manier et al. 2014, entire) are
required for any projects implemented in GHMAs to ensure that the
project is sited at a distance away from leks so that breeding sage-
grouse are not disturbed. All projects implemented in GHMAs include
RDFs to minimize indirect effects to sage-grouse, such as design and
management of water features so that mosquito habitat is not created
that could provide a vector for WNv. Lastly, all projects implemented
in GHMAs (and PHMAs) are required to be fully mitigated to a net
conservation gain for sage-grouse; these measures are a substantial
improvement from management in 2010, where no avoidance, minimization,
or mitigation was required. GHMA corresponds with approximately 27
percent of breeding habitat rangewide. These measures were effective
immediately upon the implementation of the Federal Plans and will be in
place for the next 20 to 30 years.
Some other minor potential threats exist such as hunting, disease,
predation, recreational activities, and scientific use. As discussed in
the assessment of those potential threats (see Summary of Information
Pertaining to the Five Factors, above), some minor or localized adverse
effects may occur, but the best available information does not indicate
that rangewide population-level effects are occurring. For example,
while sage-grouse hunting continues to be allowed in several States, it
is highly regulated and monitored with season and bag limits adjusted
based on population monitoring so that this activity does not
negatively impact the sustainability of this species. In addition, some
of those potential threats are ameliorated by the Federal and State
Plans, as the exclusion or limitation on land uses thereby further
minimizes these minor potential threats. For example, exclusion of
surface development of nonrenewable energy in PHMA and Core Areas and
RDFs for those projects in GHMA prevents the creation of human-made
water sources that provide breeding habitat for mosquitos that are
vectors for WNv, thus reducing the potential for disease outbreaks in
sage-grouse populations.
In addition to the Federal and State Plans, extensive work by
private landowners is an important part of the rangewide sage-grouse
conservation effort that has been implemented since 2010 (as discussed
in detail in Changes Since the 2010 Finding, above). Private lands
comprise about 39 percent of the species' range and contain some key
habitat types that are important to sage-grouse. Since 2010, SGI has
completed targeted sage-grouse habitat restoration and enhancement
actions on more than 1.8 million ha (4.4 million ac) of private
ranchlands throughout the species' occupied range. This work includes
conifer removal, which will be strategically implemented through use of
new conifer mapping (NRCS 2015a, 19). It also includes more than
180,000 ha (450,000 ac) of conservation easements that protect sage-
grouse habitat from future agricultural conversion or urban and exurban
development. The SGI is also actively engaged in the BLM and USFS
efforts to address the wildfire and invasive plants cycle by working
with ranchers to implement grazing practices and fuels treatments to
improve resistance and resilience of the sagebrush ecosystem. The NRCS
has committed 198 million dollars to continue these efforts, with a
goal of doubling previous accomplishments by 2018 (NRCS 2015a, p. 30,
NRCS 2015b, p. 6).
Private lands conservation has occurred in Oregon and Wyoming with
the completion of CCAAs that provide opportunities for enrollment for
all private lands within those States (as discussed in detail in
Changes Since the 2010 Finding, above). Programmatic and Umbrella CCAAs
in these States provide sage-grouse guidance for ranch management
practices, ensuring that enrolled lands will be managed to benefit
sage-grouse. The programmatic agreements in Oregon provide a framework
for other landowners to easily enroll without a large amount of time
and paperwork, making it likely that others will enroll in the future.
These agreements have resulted in substantial private lands
conservation for sage-grouse. For example, landowners in Oregon have
either completed enrollment or have signed formal letters of intent to
enroll, representing more than 575,000 ha (1.4 million ac) of private
rangeland in Oregon. In Wyoming, a completed umbrella CCAA covers
important private lands in the range of the sage-grouse, and 36 private
landowners have completed CCAAs in Wyoming under this programmatic
CCAA. Collectively, there are 180,223 ha (445,343 ac) of private and
State lands in the umbrella CCAA.
To summarize, in the 2010 finding, we determined that the
regulatory mechanisms needed to address the loss and fragmentation of
sage-grouse habitats were inadequate. Five years later, and following
an unprecedented conservation planning effort by Federal, State, local,
and private partners, we now determine that regulatory mechanisms and
conservation efforts adequately address the loss and fragmentation of
sage-grouse habitats based on the following reasons:
The BLM and USFS have successfully amended or revised
98 land use plans that
[[Page 59936]]
govern approximately 50 percent of the sage-grouse occupied range.
These plans now clearly out outline the expectations for management
that will conserve sage-grouse habitat on BLM and USFS lands.
The States of Wyoming, Montana, and Oregon completed
plans with regulatory mechanisms that effectively reduce the loss
and fragmentation of sage-grouse habitats. Collectively, the Federal
Plans and three State Plans reduce impacts on more than 90 percent
of sage-grouse breeding habitat under this umbrella of Federal and
State protection.
The implementation of the FIAT and Secretarial Order is
reducing and restoring habitat lost to wildfire in important sage-
grouse habitats and making the protection and rehabilitation of
sage-grouse habitats a priority second to human health and safety.
During the 2015 wildfire season, we are already seeing the positive
results of these focused efforts to reduce habitat loss and
fragmentation from wildfire.
The SGI, led by the NRCS, is working with private
landowners across the range of the sage-grouse. The initiative
targets land within priority sage-grouse habitat and is improving
rangeland health on more than 2.4 million acres.
We have worked with the States and private landowners,
especially in Oregon and Wyoming, to implement CCAAs that cover more
than 1.8 million acres. These agreements will ensure the
conservation of sage-grouse habitat while providing working
landscapes for the landowners.
The Act defines an endangered species as any species that is ``in
danger of extinction throughout all or a significant portion of its
range'' and a threatened species as any species ``that is likely to
become endangered throughout all or a significant portion of its range
within the foreseeable future.''
We recognize that all impacts to the species have not been
completely eliminated, and that existing and ongoing activities will
continue to affect the species and its habitat. Therefore, it is likely
that, over the foreseeable future, there will be some reduction in
available habitat quantity and quality, some decrease in the relative
population index, and local range contraction (including the loss of
some small populations on the edges of the species' range). The
conservation efforts included in this analysis, however, have
significantly reduced the impacts in the most important habitats for
the species. These areas are highly correlated with the PACs identified
in the COT Report as areas necessary for sufficient representation,
resilience, and redundancy to ensure persistence of the species.
The conservation efforts by Federal, State, and private partners
have greatly changed the likely trajectory of the species from our 2010
projections when we determined that the species warranted listing. We
conclude that, taking into account the potential, but now minimized,
effects to the species over the foreseeable future, the species is not
likely to become endangered within the foreseeable future because of
the number of large, connected populations distributed across the
species' range and the unprecedented level of conservation actions now
in place for 90 percent of the breeding habitat across the species'
range. In other words, even with the remaining likely reduction in
habitat and populations discussed above, the sage-grouse will retain
sufficient representation, resilience, and redundancy throughout the
foreseeable future.
The sage-grouse has a broad distribution across the seven MZs, 11
States, and 2 Canadian Provinces. Despite historical reductions in
occupied range, sage-grouse occupy approximately 703,453 km\2\ (271,604
mi\2\), more than 50 percent of their historical range. The species
occurs over a variety of habitats that vary by vegetation, elevation,
soil type, and precipitation. Through this broad distribution in these
varied ecological conditions, the species will maintain representation.
The species will continue to exist in the large and most of the small
populations across the range, providing species redundancy now and into
the future. The larger populations, which comprise the core of the
species' range and are protected through Federal and State Plans, will
be more resilient to direct impacts and are expected to rebound
following disturbance. In summary, for sage-grouse, maintaining
representation, redundancy, and resilience means having multiple and
geographically distributed populations throughout the varied habitats
across the species' range, and we conclude that this goal is achieved
through the Federal and State Plans.
The new Federal land-management paradigm is established in 98
amended Federal Plans that reduce and minimize threats to the species
in the most important habitat for the species. Several States have
adopted their own regulatory measures to reduce habitat loss and
fragmentation on non-Federal lands. Many private landowners have also
engaged in proactive conservation efforts that provide additional
benefits to the species and indicate a shift in cultural attitudes
towards the sagebrush ecosystem. Together, the Federal Plans and State
Plans in Wyoming, Montana, and Oregon reduce threats on approximately
90 percent of the breeding habitat across the species' range. Looking
ahead, we expect these conservation efforts will continue to be
implemented for the next 20 to 30 years, ensuring the protection of the
most important habitats so that large sage-grouse populations continue
to be distributed across the species' range. These conservation efforts
occur in the areas needed for redundancy, representation, and
resilience of the species.
Therefore, we find that the magnitude and imminence of threats
either individually or in combination do not indicate that sage-grouse
is currently in danger of extinction (endangered). Further, based on
our analysis and the conservation provided by the conservation efforts
described throughout this document, we find that the magnitude and
imminence of threats either individually or in combination do not
indicate that the sage-grouse is likely to become endangered within the
foreseeable future (threatened). Therefore, based on our assessment of
the best available scientific and commercial information, we find that
listing the sage-grouse as a threatened or an endangered species is not
warranted at this time.
Significant Portion of the Range
Under the Act and our implementing regulations, a species may
warrant listing if it is in danger of extinction or likely to become so
throughout all or a significant portion of its range. The Act defines
``endangered species'' as any species which is ``in danger of
extinction throughout all or a significant portion of its range,'' and
``threatened species'' as any species which is ``likely to become an
endangered species within the foreseeable future throughout all or a
significant portion of its range.'' The term ``species'' includes ``any
subspecies of fish or wildlife or plants, and any distinct population
segment (DPS) of any species of vertebrate fish or wildlife which
interbreeds when mature.'' We published a final policy interpreting the
phrase ``Significant Portion of its Range'' (SPR) (79 FR 37578, July 1,
2014). The final policy states that (1) if a species is found to be
endangered or threatened throughout a significant portion of its range,
the entire species is listed as an endangered or a threatened species,
respectively, and the Act's protections apply to all individuals of the
species wherever found; (2) a portion of the range of a species is
``significant'' if the species is not currently endangered or
threatened throughout all of its range, but the portion's contribution
to the viability of the species is so important that, without the
members in that portion, the species would be in danger of extinction,
or
[[Page 59937]]
likely to become so in the foreseeable future, throughout all of its
range; (3) the range of a species is considered to be the general
geographical area within which that species can be found at the time
the Service or the National Marine Fisheries Service makes any
particular status determination; and (4) if a vertebrate species is
endangered or threatened throughout an SPR, and the population in that
significant portion is a valid DPS, we will list the DPS rather than
the entire taxonomic species or subspecies.
The SPR policy is applied to all status determinations, including
analyses for the purposes of making listing, delisting, and
reclassification determinations. The procedure for analyzing whether
any portion is an SPR is similar, regardless of the type of status
determination we are making. The first step in our analysis of the
status of a species is to determine its status throughout all of its
range. If we determine that the species is in danger of extinction, or
likely to become so in the foreseeable future, throughout all of its
range, we list the species as an endangered (or threatened) species and
no SPR analysis will be required. If the species is neither in danger
of extinction nor likely to become so throughout all of its range in
the foreseeable future, we then determine whether the species is in
danger of extinction or likely to become so in the foreseeable future
throughout a significant portion of its range. If it is, we list the
species as an endangered or a threatened species, respectively; if it
is not, we conclude that listing the species is not warranted.
When we conduct an SPR analysis, we first identify any portions of
the species' range that warrant further consideration. The range of a
species can theoretically be divided into portions in an infinite
number of ways. However, there is no purpose to analyzing portions of
the range that are not reasonably likely to be significant and
endangered or threatened. To identify only those portions that warrant
further consideration, we determine whether there is substantial
information indicating that (1) the portions may be significant and (2)
the species may be in danger of extinction in those portions or likely
to become so within the foreseeable future. We emphasize that answering
these questions in the affirmative is not a determination that the
species is endangered or threatened throughout a significant portion of
its range--rather, it is a step in determining whether a more detailed
analysis of the issue is required. In practice, a key part of this
analysis is whether the threats are geographically concentrated in some
way. If the threats to the species are affecting it uniformly
throughout its range, no portion is likely to warrant further
consideration. Moreover, if any concentration of threats applies only
to portions of the range that clearly do not meet the biologically
based definition of ``significant'' (i.e., the loss of that portion
clearly would not be expected to increase the vulnerability to
extinction of the entire species), those portions will not warrant
further consideration.
If we identify any portions that may be both: (1) Significant; and
(2) endangered or threatened, we engage in a more detailed analysis to
determine whether these standards are indeed met. The identification of
an SPR does not create a presumption, prejudgment, or other
determination as to whether the species in that identified SPR is
endangered or threatened. We must go through a separate analysis to
determine whether the species is endangered or threatened in the SPR.
To determine whether a species is endangered or threatened throughout
an SPR, we will use the same standards and methodology that we use to
determine if a species is endangered or threatened throughout its
range.
Depending on the biology of the species, its range, and the threats
it faces, it may be more efficient to address the ``significant''
question first, or the status question first. Thus, if we determine
that a portion of the range is not ``significant,'' we do not need to
determine whether the species is endangered or threatened there; if we
determine that the species is not endangered or threatened in a portion
of its range, we do not need to determine if that portion is
significant.
Because we determined that the sage-grouse is neither endangered
nor threatened throughout all of its range, due largely to the
effective reduction and amelioration of threats by ongoing and future
regulatory mechanisms and other conservation efforts, we must next
determine whether the sage-grouse may be endangered or threatened in a
significant portion of its range. To do this, we must first identify
any portion of the species' range that may warrant consideration by
determining whether there is substantial information indicating that:
(1) The portions may be significant, and (2) the species may be in
danger of extinction in those portions or is likely to become so within
the foreseeable future. We note that a positive answer to these
questions is not a determination that the sage-grouse is endangered or
threatened within a significant portion of its range, but rather a
positive answer to these questions confirms whether a more detailed
analysis is necessary.
While the overall range of the sage-grouse could be subdivided into
numerous portions, there are four primary biological divisions based on
differences in populations and the concentrations of potential threats.
These four portions are: The bi-State population in Nevada and
California; the Columbia Basin population in Washington; and the Rocky
Mountain and Great Basin portions of the range. We previously evaluated
the status of the bi-State population and determined that listing is
not warranted. We now consider the Columbia Basin population to be part
of the Great Basin portion of the range. The range of the sage-grouse
is the general geographical area within which the species is found at
the time of this finding. Specifically, the current range of the sage-
grouse covers 11 States (Washington, Oregon, California, Nevada, Idaho,
Montana, Wyoming, Colorado, Utah, South Dakota, and North Dakota), and
two Canadian provinces (Alberta and Saskatchewan), and encompasses all
the current populations of sage-grouse, with the exception of the bi-
State sage-grouse Distinct Population Segment, and the intervening
habitat (Figure 1, above). Analyzing the threats to the Rocky Mountain
and Great Basin populations also satisfies the requirement of the Act
to address populations and threats in significant portions of the sage-
grouse's overall range.
We first evaluated whether potential threats to the sage-grouse
might be geographically concentrated in any one portion of its range.
We examined impacts to sage-grouse from fire, invasive plants, conifer
encroachment, agricultural conversion, renewable- and nonrenewable-
energy development, mining, infrastructure, fences, improper grazing,
free-roaming equids, urban and exurban development, recreation, climate
change, drought, recreational hunting, scientific and educational
purposes, disease, predation, contaminants, military activities, small
populations, the inadequacy of regulatory mechanisms, and cumulative
effects. In our rangewide finding, we determined that impacts to the
sage-grouse are found throughout its range. Although these potential
threats occur throughout the current range, they are concentrated
differently between eastern and western portions of the range.
Additionally, there are differences in the composition and ecology of
sagebrush habitats in the eastern versus the western portions of the
range, and sage-grouse are variably distributed across the landscape
from
[[Page 59938]]
east to west (see Habitat and Distribution section above). The type and
focus of conservation efforts to reduce and ameliorate potential
threats vary between eastern and western portions of the range due to
the differences in concentration. Therefore, these differences in
sagebrush habitats, the distribution of sage-grouse, the concentrations
of potential threats, and conservation efforts suggest that eastern and
western portions of the range could be significant and warrant
additional analysis.
The eastern, or Rocky Mountain portion (MZs I, II, and VII), of the
species' current range covers approximately half of the occupied range,
contains approximately 49 percent of the sage-grouse estimated
abundance, and generally contains sagebrush habitat that is higher in
elevation and receives greater amounts of precipitation (Figure 1). The
western or Great Basin (MZs III, IV, V, and VI) portion of the species'
current range similarly covers about half of the occupied range and
approximately 51 percent of the sage-grouse, but contains sagebrush
habitat that is lower in elevation and receives less precipitation
(Figure 1). Concentrations of potential threats differ between these
two portions of the range, with nonrenewable energy development,
agricultural conversion, and infrastructure more concentrated in the
Rocky Mountain portion, while wildfire and invasive species are more
concentrated in the Great Basin portion. The Great Basin portion of the
range includes the sage-grouse populations in the Columbia Basin (MZ
VI).
Because some potential threats are more concentrated in either the
Rocky Mountain or Great Basin portions, we determine that the Rocky
Mountain and Great Basin portions warrant further consideration as
potential significant portions of the range. Next we evaluate whether
the sage-grouse is threatened or endangered in either the Rocky
Mountain or Great Basin portions of its current range.
The current range of the sage-grouse could theoretically be divided
into an infinite number of portions. In the first step of our
significant portion of the range analysis, we identified the Rocky
Mountains and the Great Basin as portions that warrant further
consideration. Both portions represent approximately half of the
current range, and the entire sage-grouse population is distributed
equally between both portions. As we discussed in the Bi-State Distinct
Population Segment section of this document above, the Columbia Basin
represents less than 1 percent of the species' occupied range less than
3 percent of the breeding habitat, and its loss would not result in a
significant gap in the occupied range of the sage-grouse. Therefore,
the Columbia Basin does not contribute to the overall viability of the
species and does not meet the definition of ``significant'' under the
SPR policy. We did not identify any other portions within these larger
portions that warrant further consideration because the potential
threats are not substantially concentrated within any areas other than
the Rocky Mountain or Great Basin portions, that are particularly
large, constitute a particularly high percentage of the species' range,
or are likely to be particularly important for the representation,
resilience, or redundancy of the species. Therefore, we conclude that
any portions of the range within the Rocky Mountain and Great Basin
portions that we have identified do not warrant further consideration
as significant portions of the range.
Status of the Rocky Mountain Portion of the Current Range
In our 2010 finding, we were concerned with long-term declines in
abundance trends for the Rocky Mountain MZs (MZs I, II, and VII), and
we identified a number of threats likely contributing to those declines
(75 FR 13910, March 23, 2010). The most important threats identified
for the Rocky Mountain portion of the range were habitat loss and
fragmentation from energy development, infrastructure, and agricultural
conversion; disease--particularly WNv; loss of habitat from improper
livestock management; and inadequacy of regulatory mechanisms limiting
human-caused impacts. Of these threats, the most significant of these
involved a combination of habitat loss and fragmentation from
infrastructure and energy development, and inadequate regulatory
mechanisms to address these impacts.
The potential threats from fire, invasive grasses, free-roaming
equids, conifer encroachment, and urban and exurban development have
only limited, localized impacts to sage-grouse in the Rocky Mountain
portion of the range now and into the foreseeable future. In addition,
our evaluation of the Rocky Mountain portion of the current range
focuses primarily on those potential threats most likely to affect,
individually or cumulatively, sage-grouse in the Rocky Mountains, which
does not include urban and exurban development, recreation, climate
change and drought, recreational hunting, scientific and educational
uses, contaminants, and military activity. Those threats that are
likely to affect sage-grouse in the Rocky Mountains are summarized
below. Full discussions of each of these potential threats can be found
in Summary of Information Pertaining to the Five Factors (above).
Due to new regulatory mechanisms and conservation efforts, the
potential threats identified in 2010 have been adequately ameliorated
in the Rocky Mountain portion of the range. Historically, agricultural
conversion reduced and fragmented sage-grouse habitats in the Rocky
Mountain portion of the range, primarily in MZ I. However, the new
cropland risk model (described above in the Summary of Information for
Agricultural Conversion) indicates that future agricultural conversion
is unlikely to have substantial impacts in MZ I of the Rocky Mountain
portion of the current range, and future conversions to agriculture are
unlikely to occur at greater rates or magnitudes outside of MZ I.
Further the implemented regulatory mechanisms effectively reduce
impacts from nonrenewable energy development, such that less than 17
percent of the sage-grouse population and 12 percent of the breeding
habitat in the Rocky Mountain portion of the range could be exposed to
nonrenewable energy development in the future.
We identified improper livestock management as a source of habitat
loss and fragmentation in 2010. Since that time, rangeland-health
standards in the Federal Plans, Wyoming and Montana State Plan
requirements, and SGI practices of applying grazing systems, vegetating
former rangeland with sagebrush and perennial grasses, and controlling
invasive grasses, effectively ameliorate this threat to the sage-grouse
in the Rocky Mountain portion of the range, now or in the future.
Renewable energy development has not occurred extensively within
the Rocky Mountains, but potential exists, particularly for wind
development. Infrastructure exists throughout the Rocky Mountains and
will likely continue into the future. For each of these impacts, the
regulatory mechanisms provided by Federal Plans, the Montana Plan, and
the Wyoming Plan substantially reduce this potential impact by
restricting new development in important sagebrush habitats. Coal
mining, the primary kind of mining occurring in the Rocky Mountains,
has generally declined since 2008. Regulatory mechanisms provided by
the Federal Plans exclude new leasable (except coal) and saleable
mineral
[[Page 59939]]
development on more than 14 million ha (35 million ac) of PHMA. Because
of the effective regulatory mechanisms that protect important habitats,
these types of development are not threats to sage-grouse within the
Rocky Mountain portion of the range, now or in the future.
As described in the Summary of Information Pertaining to the Five
Factors (above), we also evaluated the impacts of predation and disease
and found that, although they present localized impacts, they were not
likely to result in population-level effects. This remains true when
reviewing the information for the Rocky Mountain portion of the range.
Conservation Efforts in the Rocky Mountain Portion of the Current Range
Since the 2010 finding, many parties have collaborated to develop
comprehensive strategies that ameliorate the major potential threats,
consistent with the COT Report. The Federal Plans and Wyoming and
Montana Plans provide adequate regulatory mechanisms to reduce the
threats of human-caused habitat disturbance on the most important sage-
grouse habitats (as discussed in detail in the Changes Since the 2010
Finding, above). The Federal Plans designate PHMA, and the Wyoming and
Montana Plans designate Core Areas, all of which correspond closely
with the PACs identified in the COT Report. In the Rocky Mountain
portion of the range, more than 67 percent of the sage-grouse breeding
habitat distribution is protected as PHMA and more than 30 percent is
protected as GHMA.
The Federal Plans address the primary potential threats that reduce
and fragment sage-grouse habitats on BLM- and USFS-administered lands
in the Rocky Mountain portion of the range, including infrastructure
and energy development. All forms of development--from energy, to
transmission lines, to recreation facilities and grazing structures--
would be avoided in PHMA unless a further assessment found that the
project would not adversely affect the sage-grouse. Consistent with COT
guidance, a limited amount of development could occur in GHMAs,
although additional conservation measures, such as lek buffers,
seasonal and timing restrictions, and project-design features, will
minimize potential effects in GHMA.
In conjunction with the Federal Plans, the Wyoming Plan
incorporates stipulations and conservation measures, such as controlled
surface use, seasonal and noise restrictions, consultation
requirements, density of development restrictions, and lek buffers to
reduce impacts associated with energy development on all lands within
Core Areas in Wyoming. The Montana Plan includes a regulatory mechanism
similar to the Core Area Strategy to reduce impacts associated with
energy development in Core Areas on State-owned lands and private lands
when a State authorization is required. The Montana Plan also requires
similar conservation measures to reduce impacts, such as seasonal and
noise restrictions, density development restrictions, and lek buffers.
Finally, conservation efforts on private lands through SGI and
CCAAs reduce potential threats in the Rocky Mountain portion of the
range. SGI efforts with ranchers to address grazing systems and fences,
to implement habitat restoration, and to provide conservation easements
have protected sage-grouse habitat from further fragmentation; NRCS'
commitment to adaptive management, partnerships, and flexibility in
conservation approaches ensures continued and constantly improving
conservation on private lands within sage-grouse habitat. In Wyoming, a
completed umbrella CCAA covers important private lands in the range of
the sage-grouse, and 30 private landowners have completed CCAAs in
Wyoming under this programmatic CCAA. Collectively, there are 180,223
ha (445,343 ac) of private and State lands committed within the
umbrella CCAA, 112,212 ha (277,282 ac) of which are located within
sage-grouse Core Areas, and 8,235 ha (20,348 ac) are in connectivity
areas.
By taking a landscape-level view that spans land ownership in the
Rocky Mountain portion of the range, these conservation efforts have
significantly reduced the potential threats to sage-grouse now and in
the foreseeable future. Many of these conservation efforts are
regulatory mechanisms on Federal lands that are managed consistently by
BLM and USFS in the five Rocky Mountain States (MT, WY, CO, ND, and
SD). Similar regulatory mechanisms are provided by Montana and Wyoming
State Plans and Executive Orders to reduce potential impacts on non-
Federal lands in those States. These regulatory mechanisms are
finalized, are currently being implemented, and are likely to continue
to be implemented for the next 20 to 30 years. In addition, SGI and
private land owners have implemented conservation projects across the
Rocky Mountain portion of the range, further contributing to sage-
grouse conservation. The SGI has committed to continue this work for
the next 3 years, ensuring private land conservation will continue to
be implemented through the authorization of the next Farm Bill (NRCS
2015a, p. 2). All of these conservation actions are consistent with the
COT Report recommendations and scientific literature, which indicates
they will effectively conserve sage-grouse.
Conclusion for the Rocky Mountain Portion of the Current Range
Based on Federal and State regulations and conservation efforts,
the risk and exposure of the sage-grouse to the potential threats of
nonrenewable-energy development, agricultural conversion, and habitat
fragmentation from infrastructure and other development are
significantly reduced. These conservation efforts are ameliorating the
potential threats and decreased the amount and rate of development well
below what was expected, and by minimizing and mitigating impacts to
sage-grouse, have significantly addressed threats facing sage-grouse as
described in the 2010 finding, the COT Report, and other published
scientific findings. In the Rocky Mountain portion, some habitat loss
associated with energy development, infrastructure, agricultural
conversion, and urbanization will continue into the future.
Some sage-grouse populations may continue to decline in some parts
of the Rocky Mountains. However, the existing and future effective
regulatory mechanisms and conservation efforts in the Rocky Mountain
portion of the range will protect the most important habitats and
maintain relatively large, well-distributed, and interconnected sage-
grouse populations across much of the eastern portion of its range.
Since the 2010 finding, there has been an unprecedented and substantial
proactive conservation effort to reduce potential habitat loss and
fragmentation from infrastructure and energy development. More than 67
percent of the sage-grouse breeding habitat in the Rocky Mountains is
protected by PHMA, where no development will occur, and more than 30
percent is protected by GHMA, where required conservation measures will
avoid and reduce adverse effects. Therefore, we determined that, due to
the combination of regulations on Federal lands and regulatory and
voluntary measures on private lands that provide adequate avoidance and
mitigation, these potential threats are effectively being reduced in
the Rocky Mountain portion of the range.
Therefore, we conclude that sage-grouse in the Rocky Mountain
portion of
[[Page 59940]]
the current range are not in danger of extinction or likely to become
so within the foreseeable future, due to the existing effective
conservation efforts implemented since 2010 and future conservation
efforts. Sage-grouse will remain well-distributed and interconnected
into the foreseeable future as these conservation efforts are
implemented. Therefore, the sage-grouse is not threatened or endangered
in the Rocky Mountain portion of its current range.
Status of the Great Basin Portion of the Current Range
In our 2010 finding, we identified long-term declines in sage-
grouse abundance trends for the Great Basin MZs, and we identified a
number of threats likely contributing to those declines (75 FR 13910,
March 23, 2010). The most important threats identified in the 2010
finding for the Great Basin were: Wildfire, invasive plants, conifer
invasion, habitat fragmentation, climate change, loss of habitat
quality due to improper livestock and free-roaming equid grazing, and
the inadequacy of regulatory mechanisms to address human-caused impacts
such as energy and infrastructure development. Of these threats, the
greatest concern in the Great Basin was habitat loss and fragmentation
from wildfire and invasive plants. Currently, the primary potential
threats to sage-grouse in the Great Basin include wildfire and its
synergistic effects with invasive plants. We will also specifically
summarize habitat loss and fragmentation due to conifer encroachment,
mining, renewable energy, and infrastructure in the Great Basin. Our
evaluation of the Great Basin portion of the current range focuses
primarily on those potential impacts most likely to affect,
individually or cumulatively, sage-grouse in the Great Basin and does
not include urban and exurban development, recreation, predation,
climate change and drought, recreational hunting, scientific and
educational uses, contaminants, and military activity. Full discussions
of each of these potential threats can be found in Summary of
Information Pertaining to the Five Factors (above).
Wildfire and its synergistic relationship with invasive species,
climate change and drought, improper grazing, and free-roaming equids
was identified in the 2010 finding as the most serious threat to sage-
grouse populations in the Great Basin. Wildfire is a natural and
integral part of the Great Basin landscape, and will continue into the
future. A recent study predicts that a 43 percent decline in Great
Basin sage-grouse populations could occur by 2044 if no additional
management is implemented to address the wildfire and invasive plant
cycle. If conservation measures reduce the area burned by at least 25
percent, the rate of population decline is likely to be reduced.
Further, the study emphasizes the importance of implementing
conservation actions in areas of moderate and high resistance and
resiliency and containing high densities of sage-grouse. The FIAT
Assessments and Secretarial Order conservation measures are consistent
with this recommendation to prioritize implementation actions in places
most likely to be effective and to provide the greatest benefit for
sage-grouse. Therefore, we conclude the continued implementation of
FIAT and the Secretarial Order will reduce the rate of decline in the
Great Basin over the next 30 years.
Through the Federal Plans, the BLM and USFS have established land
health standards that now consider and incorporate sage-grouse habitat
needs. The Federal Plans restrict grazing in areas that are not meeting
standards, and the agencies will manage free-roaming equid populations
at levels that minimize impacts to the most important sage-grouse
habitats. Voluntary conservation through SGI's invasive species removal
programs, improved grazing practices, and the enhancement and
protection of healthy rangeland conditions further improve habitat for
sage-grouse in the Great Basin. Finally, State conservation efforts in
Oregon have further reduced the impacts of wildfire, invasive plants,
grazing, and free-roaming equids through regulatory mechanisms.
These and many other positive conservation activities described in
this finding were not implemented, planned, or certain to occur when
the 2010 warranted finding was completed, leading us to conclude that
sage-grouse warranted protections of the Act. The regulatory mechanisms
and commitments to manage wildfire and invasive plants will result in a
substantial reduction of habitat lost to these impacts, such that sage-
grouse populations will continue to be distributed and connected across
the Great Basin. Therefore, because the potential impacts have been
substantially reduced by effective regulatory mechanisms and the
ongoing implementation of conservation efforts, wildfire and the
associated synergistic effects from invasive species, climate change
and drought, improper grazing, and free-roaming equids are not
substantial threats to the sage-grouse within the Great Basin portion
of the range, now or in the future.
In addition to wildfire and its synergistic impacts, habitat loss
from conifer encroachment has also been identified as a concern in the
Great Basin. Conifers are a natural component of the sagebrush
ecosystem, and, if not actively managed, are expected to continue to
expand, resulting in additional loss of habitat in the Great Basin.
However, Federal and State Plan vegetation objectives and on-the-ground
removal of conifers through SGI and State efforts have reduced impacts
of this potential threat. For the next 3 years, SGI has committed to
continue this work, ensuring private land conservation will continue to
be implemented (NRCS 2015a, p. 2; NRCS 2015b, p. 6). As a result of
direction provided in State and Federal Plans and ongoing
implementation of SGI, the rate of encroachment and habitat loss is
reduced such that conifer encroachment is not a threat in the Great
Basin portion of the range, now or in the future.
Development due to mining, renewable energy, and infrastructure
continues to occur in the Great Basin. As discussed above (see Mining),
mining potential is difficult to predict. The Federal Plans contain
regulatory mechanisms to avoid and minimize potential impacts from
mining in important sage-grouse habitat. Similarly, infrastructure and
development of renewable energy is currently present across the Great
Basin and will likely continue at some level, but regulatory mechanisms
provided by Federal Plans reduce potential future development by
eliminating or capping disturbance in important sagebrush habitat and
by implementing project design features to minimize impacts (e.g.,
buffers, noise restrictions, etc.).
Conservation Efforts in the Great Basin Portion of the Current Range
Since the 2010 finding, many parties have collaborated to develop
comprehensive strategies that would substantially ameliorate the major
potential threats, consistent with the COT Report. Through Federal
Plans, State Plans, and voluntary conservation on private lands through
CCAA and SGI, the Great Basin is being actively managed for the benefit
of sage-grouse.
The Federal Plans provide clear management regulations with
measurable objectives to address invasive annual grasses, conifer
encroachment, improper grazing, and free-roaming equids. They
prioritize management in the most important habitat (PHMA), which
encompasses approximately 60 percent of the
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breeding habitat in the Great Basin. All forms of development--from
energy, infrastructure, and grazing structures--would be avoided in
PHMA unless further assessment found the project not to have any
adverse effects on the species. Consistent with COT guidance, a limited
amount of development could occur in GHMAs, which support 23 percent of
the breeding habitat in the Great Basin (USFWS 2013, pp. 43-52). In
those instances, additional measures such as lek buffers, seasonal and
timing restrictions, and project design features will minimize
potential indirect effects that could occur. A more comprehensive
discussion on these measures and their expected effects is provided
earlier in this finding (see Summary of Information Pertaining to the
Five Factors, above).
The majority of sage-grouse habitat in the Great Basin occurs on
Federal lands, making the Federal Plans' implementation most important
for sage-grouse conservation in the Great Basin. However, States can
help reduce potential threats through collaboration with Federal land
managers and by promoting conservation outside Federal lands. To date,
Oregon is the only State in the Great Basin that completed and
implemented a plan that provides regulatory mechanisms. The Oregon Plan
provides regulatory protections for sage-grouse habitat across all land
ownerships, a coordinated mitigation system, wildfire management
measures, and a development cap for Core Areas that is coordinated with
the Federal Plans.
Threat reduction is also enhanced on private lands in the Great
Basin through the SGI and associated Farm Bill programs. Throughout the
western States, SGI has implemented targeted sage-grouse conservation
practices on more than 4.4 million acres, and has allocated more than
$424 million in project funding. In the Great Basin portion of the
Range, SGI efforts with ranchers to address grazing systems and fences,
to implement habitat restoration, and to provide conservation easements
have protected sage-grouse habitat from further fragmentation. The NRCS
made funding available from 2010 through 2018 to fund and implement the
SGI program (NRCS 2015a, p. 2, NRCS 2015b, p. 6). Since 2010, SGI has
implemented action on more than 1,000 ranches. NRCS' commitment to
adaptive management, partnerships, and flexibility in conservation
approaches ensures continued and constantly improving conservation on
private lands within sage-grouse habitat. Based on the track record of
successfully implemented conservation actions consistent with the COT
Report recommendations and commitments to continue implementing the
program, we conclude that the SGI program provides substantial
conservation benefits to sage-grouse in the Great Basin, now and in the
future.
The greatest amount of private lands conservation in the Great
Basin has occurred in Oregon. In 2015, we completed a series of
programmatic CCAAs for sage-grouse that potentially covers all private
lands in the range in Oregon. In Oregon, more than 575,000 ha (1.4
million ac) of rangeland have been effectively conserved for sage-
grouse through enrollment of private landowners in CCAAs. These
programmatic agreements provide a framework for other landowners to
easily enroll without a large amount of time and paperwork, making it
likely that others will be enrolled in the near future.
This coordinated approach to conserve sage-grouse and sagebrush
habitat has resulted in substantial reductions in all of the potential
threats facing sage-grouse in the Great Basin in the foreseeable
future. Many of these conservation efforts on Federal lands are
consistent across the five States due to the management by BLM and
USFS, while programs on non-Federal lands vary from State to State due
to different regulatory, political, ecological, and economic
circumstances in the respective States. Since 2010, many of the
specific measures described in this finding are under way or are being
finalized with actions to be implemented during the coming years. We
have a high degree of certainty that the majority of the planned future
actions will be implemented and will reduce the magnitude of potential
threats facing the sage-grouse in the Great Basin.
Conclusion for the Great Basin Portion of the Current Range
Based on Federal, State, and private landowner efforts, the
potential threats of wildfire (and associated, synergistic impacts from
invasive plants, climate change and drought, improper grazing, and
free-roaming equids), conifer encroachment, mining, and infrastructure
have been reduced. Some habitat loss in the Great Basin portion
associated with wildfire and invasive plants and conifer encroachment
will continue into the future, and it is likely that sage-grouse
populations will continue to decline in some parts of the Great Basin.
However, we expect that the existing and future effective conservation
efforts in the Great Basin portion of the range will reduce declines
and will protect the most important sage-grouse habitat, resulting in
relatively large, well-distributed, and interconnected populations
across much of the western portion of its range. Since the 2010
warranted finding, Federal, State, and local entities to identify
specific needs of this species and to provide resources for the
conservation and protection of the species and its habitat. Due to
these conservation efforts, the species will remain well-distributed
and interconnected into the foreseeable future as these measures are
implemented. Therefore, the sage-grouse is not a threatened or
endangered species in the Great Basin portion of its range.
Conclusion
Our review of the best available scientific and commercial
information indicates that the sage-grouse is not in danger of
extinction nor likely to become endangered within the foreseeable
future throughout all of its range. Additionally, we determined that
the sage-grouse is not in danger of extinction now or within the
foreseeable future throughout either the Rocky Mountain or Great Basin
portions of its range. Therefore, the sage-grouse is not in danger of
extinction nor likely to become endangered within the foreseeable
future throughout a significant portion of its range. Therefore, we
find that listing the sage-grouse as an endangered or threatened
species under the Act is not warranted at this time.
The completion of this status review is not the end of our
commitment to sage-grouse conservation. Our determination today is
based on the best scientific and commercial data currently available.
That determination, however, cannot guarantee that the sage-grouse (or
other sagebrush ecosystem species) will not in the future warrant
listing under the Act. New threats may develop, management may change,
or the species may not prove as resilient as we concluded based on the
currently available science. Thus, although our best judgment today
indicates that successful sage-grouse conservation will be achieved by
continued implementation of the regulatory mechanisms and conservation
efforts we relied on in our finding above, we and our partners must
carefully monitor threats to the sage-grouse and its response to those
threats. Therefore, we will work with our Federal and State partners to
conduct a sage-grouse status review in 5 years. This status review will
inform adaptive management and guide future research needs to ensure
that conservation efforts continue to
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benefit sage-grouse into the future. In the meantime, to ensure the
long-term successes of this unprecedented conservation effort, we will
continue to work with our partners to augment and improve current
management within the sagebrush ecosystem. If at any time new
information indicates that the provisions of the Act may be necessary
to conserve sage-grouse, we can initiate listing procedures, including,
if appropriate, emergency listing pursuant to section 4(b)(7) of the
Act.
References
A complete list of references cited is available on the Internet at
https://www.regulations.gov and upon request from the Mountain-Prairie
Regional Office (see ADDRESSES).
Author(s)
The primary author(s) of this notice are the staff members of the
U.S. Fish and Wildlife Service.
Authority
The authority for this action is section 4 of the Endangered
Species Act of 1973, as amended (16 U.S.C. 1531 et seq.).
Dated: September 21, 2015.
Daniel M. Ashe,
Director, U.S. Fish and Wildlife Service.
[FR Doc. 2015-24292 Filed 10-1-15; 8:45 am]
BILLING CODE 4310-55-P