Endangered and Threatened Wildlife and Plants; Endangered Species Status for Rusty Patched Bumble Bee, 65324-65334 [2016-22799]
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Federal Register / Vol. 81, No. 184 / Thursday, September 22, 2016 / Proposed Rules
Indian to waive Departmental review
and approval;
(2) The appraisal or valuation was
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meeting the requirements of this part;
and
(3) No owner of any interest in the
Indian property objects to use of the
appraisal or valuation without
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(1) Any of the criteria in paragraph (a)
of this section are not met; or
(2) The appraisal or valuation was
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appraisal or valuation.
§ 100.302 May I request Departmental
review of an appraisal even if a qualified
appraiser completed the appraisal or
valuation?
If you do not specifically request
waiver of Departmental review and
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Department will review the appraisal or
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§ 100.303 What happens if the Indian tribe
or individual Indian does not agree with the
submitted appraisal or valuation?
If the Indian tribe or individual Indian
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submitted appraisal or valuation.
Dated: September 7, 2016.
Michael L. Connor,
Deputy Secretary.
[FR Doc. 2016–22650 Filed 9–21–16; 8:45 am]
BILLING CODE 4337–15–P
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS–R3–ES–2015–0112;
4500030113]
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RIN 1018–BB66
Endangered and Threatened Wildlife
and Plants; Endangered Species
Status for Rusty Patched Bumble Bee
Fish and Wildlife Service,
Interior.
ACTION: Proposed rule.
AGENCY:
We, the U.S. Fish and
Wildlife Service (Service), announce a
SUMMARY:
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12-month finding on a petition to list
the rusty patched bumble bee (Bombus
affinis) as endangered or threatened
under the Endangered Species Act, as
amended (Act). After review of the best
available scientific and commercial
information, we find that listing the
rusty patched bumble bee is warranted.
Accordingly, we propose to list the
rusty patched bumble bee, a species that
occurs in the eastern and midwestern
United States and Ontario, Canada, as
an endangered species under the
Endangered Species Act (Act). If we
finalize this rule as proposed, it would
extend the Act’s protections to this
species. The effect of this regulation will
be to add this species to the List of
Endangered and Threatened Wildlife.
DATES: We will accept comments
received or postmarked on or before
November 21, 2016. Comments
submitted electronically using the
Federal eRulemaking Portal (see
ADDRESSES below) must be received by
11:59 p.m. Eastern Time on the closing
date. We must receive requests for
public hearings, in writing, at the
address shown in FOR FURTHER
INFORMATION CONTACT by November 7,
2016.
ADDRESSES: You may submit comments
by one of the following methods:
(1) Electronically: Go to the Federal
eRulemaking Portal: https://
www.regulations.gov. In the Search box,
enter FWS–R3–ES–2015–0112, which is
the docket number for this rulemaking.
Then, in the Search panel on the left
side of the screen, under the Document
Type heading, click on the Proposed
Rules link to locate this document. You
may submit a comment by clicking on
‘‘Comment Now!’’
(2) By hard copy: Submit by U.S. mail
or hand-delivery to: Public Comments
Processing, Attn: FWS–R3–ES–2015–
0112; U.S. Fish and Wildlife Service
Headquarters, MS: BPHC, 5275 Leesburg
Pike, Falls Church, VA 22041–3803.
We request that you send comments
only by the methods described above.
We will post all comments on https://
www.regulations.gov. This generally
means that we will post any personal
information you provide us (see Public
Comments below for more information).
FOR FURTHER INFORMATION CONTACT:
Peter Fasbender, Field Supervisor, U.S.
Fish and Wildlife Service, Twin Cities
Ecological Services Field Office, 4101
American Blvd. E., Bloomington, MN
55425, by telephone 952–252–0092,
extension 210. Persons who use a
telecommunications device for the deaf
(TDD) may call the Federal Information
Relay Service (FIRS) at 800–877–8339.
SUPPLEMENTARY INFORMATION:
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Executive Summary
Why we need to publish a proposed
rule. Under the Act, if a species is
determined to be an endangered or
threatened species throughout all or a
significant portion of its range, we are
required to promptly publish a proposal
in the Federal Register and make a
determination on our proposal within 1
year. Critical habitat shall be designated,
to the maximum extent prudent and
determinable, for any species
determined to be an endangered or
threatened species under the Act.
Listing a species as an endangered or
threatened species and designations and
revisions of critical habitat can only be
completed by issuing a rule. This
rulemaking will propose the listing of
the rusty patched bumble bee (Bombus
affinis) as an endangered species.
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. While
the exact cause of the species’ decline
is uncertain, the primary causes
attributed to the decline include habitat
loss and degradation, pathogens,
pesticides, and small population
dynamics.
We will seek peer review. We sought
comments on the species status
assessment (SSA) from independent
specialists to ensure that our analysis
was based on scientifically sound data,
assumptions, and analyses. We will also
invite these peer reviewers to comment
on our listing proposal. Because we will
consider all comments and information
received during the comment period,
our final determinations may differ from
this proposal.
An SSA team prepared an SSA report
for the rusty patched bumble bee. The
SSA team was composed of U.S. Fish
and Wildlife Service biologists, in
consultation with other species experts.
The SSA represents a compilation of the
best scientific and commercial data
available concerning the status of the
species, including the impacts of past,
present, and future factors (both
negative and beneficial) affecting the
rusty patched bumble bee. The SSA
underwent independent peer review by
15 scientists with expertise in bumble
bee biology, habitat management, and
stressors (factors negatively affecting the
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species) to the species. The SSA and
other materials relating to this proposal
can be found on the Midwest Region
Web site at https://www.fws.gov/
midwest/Endangered/ and at https://
www.regulations.gov under docket
number FWS–R3–ES–2015–0112.
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Information Requested
Public Comments
We intend that any final action
resulting from this proposed rule will be
based on the best scientific and
commercial data available and be as
accurate and effective as possible.
Therefore, we request comments or
information from the public, other
concerned governmental agencies,
Native American tribes, the scientific
community, industry, or any other
interested parties concerning this
proposed rule. We particularly seek
comments concerning:
(1) The rusty patched bumble bee’s
biology, range, and population trends,
including:
(a) Biological or ecological
requirements of the species, including
habitat requirements for feeding,
breeding, and sheltering;
(b) Genetics and taxonomy;
(c) Historical and current range,
including distribution patterns (in
particular, we are interested in the
locations and dates of surveys targeting
bumble bees within the historical range
of the rusty patched bumble bee,
including negative survey results);
(d) Historical and current population
levels, and current and projected trends;
and
(e) Past and ongoing conservation
measures for the species, its habitat, or
both.
(2) Factors that may affect the
continued existence of the species,
which may include habitat modification
or destruction, overutilization, disease,
predation, the inadequacy of existing
regulatory mechanisms, or other natural
or manmade factors.
(3) Biological, commercial trade, or
other relevant data concerning any
threats (or lack thereof) to this species
and existing conservation measures or
regulations that may be addressing those
threats.
(4) The reasons why any habitat
should or should not be determined to
be critical habitat for the rusty patched
bumble bee as provided by section 4 of
the Act, including physical or biological
features within areas that are occupied
or specific areas outside of the
geographic area that are occupied that
are essential for the conservation of the
species.
Please include sufficient information
with your submission (such as scientific
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journal articles or other publications) to
allow us to verify any scientific or
commercial information you include.
Please note that submissions merely
stating support for or opposition to the
action under consideration without
providing supporting information,
although noted, will not be considered
in making a determination, as section
4(b)(1)(A) of the Act directs that
determinations as to whether any
species is a threatened or endangered
species must be made ‘‘solely on the
basis of the best scientific and
commercial data available.’’
You may submit your comments and
materials concerning this proposed rule
by one of the methods listed in
ADDRESSES. We request that you send
comments only by the methods
described in ADDRESSES.
If you submit information via https://
www.regulations.gov, your entire
submission—including any personal
identifying information—will be posted
on the Web site. If your submission is
made via a hardcopy that includes
personal identifying information, you
may request at the top of your document
that we withhold this information from
public review. However, we cannot
guarantee that we will be able to do so.
We will post all hardcopy submissions
on https://www.regulations.gov.
Comments and materials we receive,
as well as supporting documentation we
used in preparing this proposed rule,
will be available for public inspection
on https://www.regulations.gov, or by
appointment, during normal business
hours, at the U.S. Fish and Wildlife
Service, Twin Cities Ecological Service
Field Office (see FOR FURTHER
INFORMATION CONTACT).
Public Hearing
Section 4(b)(5) of the Endangered
Species Act of 1973, as amended (Act;
16 U.S.C. 1531 et seq.), provides for one
or more public hearings on this
proposal, if requested. Requests must be
received within 45 days after the date of
publication of this proposed rule in the
Federal Register. Such requests must be
sent to the address shown in FOR
FURTHER INFORMATION CONTACT. We will
schedule public hearings on this
proposal, if any are requested, and
announce the dates, times, and places of
those hearings, as well as how to obtain
reasonable accommodations, in the
Federal Register and local newspapers
at least 15 days before the hearing.
Peer Review
In accordance with our joint policy on
peer review published in the Federal
Register on July 1, 1994 (59 FR 34270),
we sought the expert opinions of 25
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appropriate and independent specialists
regarding the Species Status
Assessment, which informed this
proposed rule. The purpose of peer
review is to ensure that our listing
determination is based on scientifically
sound data, assumptions, and analyses.
The peer reviewers have expertise in
bumble bee biology, habitat, and
stressors (factors negatively affecting the
species) to the species. We invite
additional comment from the peer
reviewers during this public comment
period.
Previous Federal Action
We received a petition from The
Xerces Society for Invertebrate
Conservation (Xerces Society) to list the
rusty patched bumble bee as an
endangered species on February 5, 2013.
On May 13, 2014, the Xerces Society
filed a lawsuit against the Service for
failure to complete a petition finding in
accordance with statutory deadlines. Per
a December 24, 2014, settlement
agreement with the Xerces Society, we
agreed to make a 90-day finding no later
than September 30, 2015, and, if that
finding were substantial, to complete a
12-month finding no later than
September 30, 2016. On September 18,
2015, we published in the Federal
Register a 90-day finding that the
petition presented substantial
information indicating that listing the
species may be warranted (80 FR
56423). We then conducted a status
review, and this proposed listing rule
constitutes our 12-month petition
finding for the species.
Background
A thorough review of the taxonomy,
life history, and ecology of the rusty
patched bumble bee (Bombus affinis) is
presented in the species status
assessment report (Szymanski et al.
2016, Chapter 2; available at https://
www.fws.gov/midwest/Endangered/ and
at https://www.regulations.gov under
Docket No. FWS–R3–ES–2015–0112).
All bumble bees, including the rusty
patched, belong to the genus Bombus
(within the family Apidae) (Williams et
al. 2008, p. 53).
The rusty patched bumble bee is a
eusocial (highly social) organism
forming colonies consisting of a single
queen, female workers, and males.
Colony sizes of B. affinis are considered
large compared to other bumble bees,
and healthy colonies may consist of up
to 1,000 individual workers in a season
(Macfarlane et al. 1994, pp. 3–4).
Queens and workers differ slightly in
size and coloration; queens are larger
than workers (Plath 1922, p. 192,
Mitchell 1962, p. 518). All rusty patched
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bumble bees have entirely black heads,
but only workers and males have a rusty
reddish patch centrally located on the
abdomen.
The rusty patched bumble bee’s
annual cycle begins in early spring with
colony initiation by solitary queens and
progresses with the production of
workers throughout the summer and
ending with the production of
reproductive individuals (males and
potential queens) in mid- to late
summer and early fall (Macfarlane et al.
1994, p. 4; Colla and Dumesh 2010, p.
45; Plath 1922, p. 192). The males and
new queens disperse to mate and the
original founding queen, males, and
workers die. The new queens go into
diapause (a form of hibernation) over
winter. The following spring, the queen,
or foundress, searches for suitable nest
sites and collects nectar and pollen from
flowers to support the production of her
eggs, which are fertilized by sperm she
has stored since mating the previous
fall. She is solely responsible for
establishing the colony. As the workers
hatch and the colony grows, they
assume the responsibility of food
collection, colony defense, and care of
the young, while the foundress remains
within the nest and continues to lay
eggs. During later stages of colony
development, in mid-July or August to
September, the new queens and males
hatch from eggs. At the end of the
season the foundress dies and the new
queens (gynes, or reproductive females)
mate before hibernating.
The rusty patched bumble bee has
been observed and collected in a variety
of habitats, including prairies,
woodlands, marshes, agricultural
landscapes, and residential parks and
gardens (Colla and Packer 2008, p. 1381;
Colla and Dumesh 2010, p. 46; USFWS
rusty patched bumble bee unpublished
geodatabase 2016). The species requires
areas that support sufficient food (nectar
and pollen from diverse and abundant
flowers), undisturbed nesting sites in
proximity to floral resources, and
overwintering sites for hibernating
queens (Goulson et al. 2015, p. 2; Potts
et al. 2010, p. 349). Rusty patched
bumble bees live in temperate climates,
and are not likely to survive prolonged
periods of high temperatures (over 35
°Celsius (C) (95 °F (F)) (Goulson 2016,
pers. comm.).
Bumble bees are generalist foragers,
meaning they gather pollen and nectar
from a wide variety of flowering plants
(Xerces 2013, pp. 27–28). The rusty
patched bumble bee is one of the first
bumble bees to emerge early in the
spring and the last to go into
hibernation, so to meet its nutritional
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needs, the species requires a constant
and diverse supply of blooming flowers.
Rusty patched bumble bee nests are
typically in abandoned rodent nests or
other similar cavities (Plath 1922, pp.
190–191; Macfarlane et al. 1994, p. 4).
Little is known about the overwintering
habitats of rusty patched bumble bee
foundress queens, but other species of
Bombus typically form a chamber in soft
soil, a few centimeters deep, and
sometimes use compost or mole hills to
overwinter (Goulson 2010, p. 11).
Prior to the mid- to late 1990s, the
rusty patched bumble bee was widely
distributed across areas of 31 States/
Provinces: Connecticut, Delaware,
District of Columbia, Georgia, Illinois,
Indiana, Iowa, Kentucky, Maine,
Maryland, Massachusetts, Michigan,
Minnesota, Missouri, New Hampshire,
New Jersey, New York, North Carolina,
North Dakota, Ohio, Ontario,
Pennsylvania, Quebec, Rhode Island,
South Carolina, South Dakota,
Tennessee, Vermont, Virginia, West
Virginia, and Wisconsin. Since 2000,
the rusty patched bumble bee has been
reported from 13 States/Provinces:
Illinois, Indiana, Maine, Maryland,
Massachusetts, Minnesota, North
Carolina/Tennessee (single record on
the border between the States), Ontario,
Ohio, Pennsylvania, Virginia, and
Wisconsin (Figure 1).
Summary of Biological Status and
Threats
The Act directs us to determine
whether any species is an endangered
species or a threatened species because
of any factors affecting its continued
existence. We completed a
comprehensive assessment of the
biological status of the rusty patched
bumble bee, and prepared a report of the
assessment, which provides a thorough
account of the species’ overall viability.
We define viability as the ability of the
species to persist over the long term
and, conversely, to avoid extinction. In
this section, we summarize the
conclusions of that assessment, which
can be accessed at Docket No. FWS–R3–
ES–2015–0112 on https://
www.regulations.gov and at https://
www.fws.gov/midwest/Endangered/.
The reader is directed to the Rusty
Patched Bumble Bee (Bombus affinis)
Species Status Assessment (SSA report;
Szymanski et al. 2016) for a detailed
discussion of our evaluation of the
biological status of the rusty patched
bumble bee and the influences that may
affect its continued existence.
To assess rusty patched bumble bee
viability, we used the three conservation
biology principles of resiliency,
representation, and redundancy (Shaffer
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and Stein 2000, pp. 306–310). Briefly,
resiliency supports the ability of the
species to withstand environmental
stochasticity (for example, wet or dry,
warm or cold years); representation
supports the ability of the species to
adapt over time to long-term changes in
the environment (for example, climate
changes); and redundancy supports the
ability of the species to withstand
catastrophic events (for example,
droughts, hurricanes). In general, the
more redundant, representative, and
resilient a species is, the more likely it
is to sustain populations over time, even
under changing environmental
conditions. Using these principles, we
identified the species’ ecological
requirements for survival and
reproduction at the individual,
population, and species levels, and
described the beneficial and risk factors
influencing the species’ viability.
We evaluated the change in
resiliency, representation, and
redundancy from the past until the
present, and projected the anticipated
future states of these conditions. To
forecast the biological condition into the
future, we devised likely future
scenarios by eliciting expert information
on the primary stressors anticipated in
the future to the rusty patched bumble
bee: Pathogens, pesticides, habitat loss
and degradation, climate change, and
small population dynamics. To assess
resiliency, we evaluated the trend in
rusty patched bumble bee occurrences
(populations) over time and the trend in
the species abundance relative to all
Bombus spp. over time. To forecast
anticipated future abundance, we used
a population model to project the
number of populations expected to
persist based on plausible future risk
scenarios. To assess representation (as
an indicator of adaptive capacity) of the
rusty patched bumble bee, we evaluated
the spatial extent of occurrences over
time. At a coarse scale, we tallied the
number of counties, States, and
ecoregions occupied by the species.
Ecoregions are areas defined by
environmental conditions including
climate, landforms, and soil
characteristics. Bailey Ecoregions
(Bailey 1983, Bailey et al. 1994) and the
equivalent Canadian Ecoregions
(Ecological Stratification Working
Group, 1996) were used. At a finer scale,
we calculated the extent of occurrence
within each ecoregion (within the
historically occupied range) over time.
To assess redundancy, we calculated the
risk of ecoregion-wide extirpations
given the number of populations present
historically, currently, and forecasted
for 5 to 50 years into the future.
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abundance declined from 8 percent
historically, to 1 percent currently.
Many of the current populations,
however, have not been reconfirmed
since the early 2000s and may no longer
persist. For example, no rusty patched
bumble bees were observed at any of the
historical sites that were revisited in
2015. Also, many of the current
populations (64 of 69 (93 percent)) are
documented by 5 or fewer individuals;
only 2 populations are documented by
more than 10 individuals (healthy
colonies consist of up to 1,000
individual workers, and a healthy
population contains tens to hundreds of
colonies (Macfarlane et al. 1994,
pp. 3–4)).
Along with the loss of populations, a
marked decrease in the spatial extent
has occurred in recent times. As noted
above, the rusty patched bumble bee
was broadly distributed historically
across the eastern United States, upper
Midwest, and southern Quebec and
Ontario, an area comprising 15
ecoregions, 31 States/Provinces, and 378
counties. Since 2000, the species’
distribution has declined across its
range, with current records from 6
ecoregions, 13 States/Provinces, and 41
counties (Figure 1). The spatial extent of
the species’ current range has been
reduced to 8 percent of its historical
extent. The loss of occurrences has
increased the risk of ecoregion-wide
extirpations due to catastrophic events
(i.e., severe drought and prolonged, high
temperatures).
Many of the existing populations
continue to face the effects of past and
ongoing stressors, including pathogens,
pesticides, habitat loss and degradation,
small population dynamics, and climate
change. A brief summary of these
primary stressors is presented below; for
a full description of these stressors, refer
to Chapter 5 of the SSA report.
Pathogens—The precipitous decline
of several bumble bee species (including
the rusty patched) from the mid-1990s
to present was contemporaneous with
the collapse in populations of
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Our analyses indicate that the
resiliency, representation, and
redundancy of the rusty patched bumble
bee have all declined since the late
1990s and are projected to continue to
decline over the next several decades.
Historically, the species was abundant
and widespread, with hundreds of
populations across an expansive range,
and was the fourth-ranked Bombus
species in our relative abundance
analysis.
Since the late 1990s, rusty patched
bumble bee abundance and distribution
has declined significantly. The number
of populations has declined by 91
percent (from 845 historically (historical
= occurrences in the period 1900–1999)
to 69 currently (current = occurrences in
the period 2000–2015)), and the rusty
patched bumble bee’s relative
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commercially bred western bumble bees
(B. occidentalis), raised primarily to
pollinate greenhouse tomato and sweet
pepper crops, beginning in the late
1980s (for example, Szabo et al. 2012,
pp. 232–233). This collapse was
attributed to the microsporidium
(fungus) Nosema bombi. Around the
same time, several North American wild
bumble bee species also began to
decline rapidly (Szabo et al. 2012, p.
232). The temporal congruence and
speed of these declines led to the
suggestion that they were caused by
transmission or ‘‘spillover’’ of N. bombi
from the commercial colonies to wild
populations through shared foraging
resources. Patterns of losses observed,
however, cannot be completely
explained by exposure to N. bombi.
Several experts have surmised that N.
bombi may not be the culpable (or only
culpable) pathogen in the precipitous
decline of certain wild bumble bees in
North America (for example, Goulson
2016, pers. comm.; Strange and Tripodi
2016, pers. comm.), and the evidence for
chronic pathogen spillover from
commercial bumble bees as a main
cause of decline remains debatable (see
various arguments in Colla et al. 2006,
entire; Otterstatter and Thomson 2008,
entire; Szabo et al. 2012, entire; Manley
et al. 2015, entire).
In addition to fungi such as N. bombi,
other viruses, bacteria, and parasites are
being investigated for their effects on
bumble bees in North America, such as
deformed wing virus, acute bee
paralysis, and parasites such as
Crithidia bombi and Apicystis bombi
(for example, Szabo et al. 2012, p. 237;
Manley et al. 2015, p. 2; Tripodi 2016,
pers. comm.; Goulson et al. 2015, p. 3).
Little is known about these diseases in
bumble bees, and no studies specific to
the rusty patched bumble bee have been
conducted. Refer to Szymanski et al.
(2016, pp. 40–43) for a brief summary of
those that have the greatest potential to
affect the rusty patched bumble bee.
Pesticides—A variety of pesticides are
widely used in agricultural, urban, and
even natural environments, and native
bumble bees are simultaneously
exposed to multiple pesticides,
including insecticides, fungicides, and
herbicides. The pesticides with greatest
effects on bumble bees are insecticides
and herbicides: Insecticides are
specifically designed to directly kill
insects, including bumble bees, and
herbicides reduce available floral
resources, thus indirectly affecting
bumble bees. Although the overall
toxicity of pesticides to rusty patched or
other bumble bees is unknown,
pesticides have been documented to
have both lethal and sublethal effects
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(for example, reduced or no male
production, reduced or no egg hatch,
and reduced queen production and
longevity) on bumble bees (for example,
Gill et al. 2012, p. 107; Mommaerts et
al. 2006, pp. 3–4; Fauser-Misslin et al.
2014, pp. 453–454).
Neonicotinoids are a class of
insecticides used to target pests of
agricultural crops, forests (for example,
emerald ash borer), turf, gardens, and
pets and have been strongly implicated
as the cause of the decline of bees in
general (European Food Safety
Authority 2015, p. 4211; Pisa et al.
2015, p. 69; Goulson 2013, pp. 7–8), and
specifically for rusty patched bumble
bees, due to the contemporaneous
introduction of neonicotinoid use and
the precipitous decline of the species
(Colla and Packer 2008, p. 10). The
neonicotinoid imidacloprid became
widely used in the United States
starting in the early 1990s, and
clothianidin and thiamethoxam entered
the commercial market beginning in the
early 2000s (Douglas and Tooker 2015,
pp. 5091–5092). The use of
neonicotinoids rapidly increased as
seed-applied products were introduced
in field crops, marking a shift toward
large-scale, preemptive insecticide use.
If current trends continue, Douglas and
Tooker (2015, p. 5093) predict that
neonicotinoid use will increase further,
through application to more soybeans
and other crop species.
Most studies examining the effect of
neonicotinoids on bees have been
conducted using the European honey
bee (Apis mellifera) (Lundin et al. 2015,
p. 7). Bumble bees, however, may be
more vulnerable to pesticide exposure
for several reasons: (1) They are more
susceptible to pesticides applied early
in the year, because for one month the
entire bumble bee population depends
on the success of the queens to forage
and establish new colonies; (2) bumble
bees forage earlier in the morning and
later in the evening than honey bees,
thus are susceptible to pesticide
applications that are done in the early
morning or evening to avoid effects to
honey bees; (3) most bumble bees have
smaller colonies than honey bees, thus,
a single bumble bee worker is more
important to the survival of the colony
(Thompson and Hunt 1999, p. 155); (4)
bumble bees nest underground, thus, are
also exposed to pesticide residues in the
soil (Arena and Sgolastra 2014, p. 333);
and (5) bumble bee larvae consume
large amounts of unprocessed pollen (as
opposed to honey), and, therefore, are
much more exposed to pesticide
residues in the pollen (Arena and
Sgolastra 2014, p. 333).
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Habitat loss and degradation—The
rusty patched bumble bee historically
occupied native grasslands of the
Northeast and upper Midwest; however,
much of this landscape has now been
lost or is fragmented. Estimates of native
grassland losses since European
settlement of North America are as high
as 99.9 percent (Samson and Knofp
1994, p. 418). Habitat loss is commonly
cited as a long-term contributor to bee
declines through the 20th century, and
may continue to contribute to current
declines, at least for some species
(Goulson et al. 2015, p. 2; Goulson et al.
2008; Potts et al. 2010, p. 348; Brown
and Paxton 2009, pp. 411–412).
However, the rusty patched bumble bee
may not be as severely affected by
habitat loss compared to habitat
specialists, such as native prairie
endemics, because it is not dependent
on specific plant species, but can use a
variety of floral resources. Still, loss or
degradation of habitat has been shown
to reduce both bee diversity and
abundance (Potts et al. 2010, pp. 348–
349). Large monocultures do not
support the plant diversity needed to
provide food resources throughout the
rusty patched bumble bees’ long
foraging season, and small, isolated
patches of habitat may not be sufficient
to support healthy bee populations
(Hatfield and LeBuhn 2007, pp. 154–
¨
156; Ockinger and Smith 2007, pp. 55–
56).
Although habitat loss has established
negative effects on bumble bees
(Goulson et al. 2008; Williams and
Osborne 2009, pp. 371–373), many feel
it is unlikely to be a main driver of the
recent, widespread North American bee
declines (Szabo et al. 2012; p. 236; Colla
and Packer 2008, p. 1388; Cameron et
al. 2011b, p. 665). However, the past
effects of habitat loss and degradation
may continue to have impacts on
bumble bees that are stressed by other
factors. If there is less food available or
if the bumble bees must expend more
energy and time to find food, they are
less healthy overall, and, thus, less
resilient to other stressors (for example,
nutritional stress may decrease the
ability to survive parasite infection
(Brown et al. 2000, pp. 425–426) or cope
with pesticides (Goulson et al. 2015, p.
5)). Furthermore, bumble bees may be
more vulnerable to extinction than other
animals because their colonies have
long cycles, where reproductive
individuals are primarily produced near
the end of those cycles. Thus, even
slight changes in resource availability
could have significant cumulative
effects on colony development and
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productivity (Colla and Packer 2008, p.
1380).
Small population dynamics—The
social organization of bees has a large
effect on their population biology and
genetics (Pamilo and Crozier 1997,
entire; Chapman and Bourke 2001,
entire; Zayed 2009, entire). The rusty
patched bumblebee is a eusocial bee
species (cooperative brood care,
overlapping generations within a colony
of adults, and a division of labor into
reproductive and non-reproductive
groups), and a population is made up of
colonies, rather than individuals.
Consequently, the effective population
size (number of individuals in a
population who contribute offspring to
the next generation) is much smaller
than the census population size
(number of individuals in a population).
Genetic effects of small population sizes
depend on the effective population size
(rather than the actual size), and in the
rusty patched bumble bee the effective
population sizes are inherently small
due to their eusocial structure,
haplodiploidy reproduction, and the
associated ‘‘diploid male vortex.’’
Like many insect species, the rusty
patched bumble bee has haplodiploidy
sex differentiation, in which haploid
(having one set of chromosomes) males
are produced from unfertilized eggs and
diploid (containing two complete sets of
chromosomes) females from fertilized
eggs (Zayed 2009, p. 239). When females
mate with related males, however (as is
more likely to happen in small
populations), half of the females’
progeny will develop into diploid males
instead of females. Having fewer
females decreases the health of the
colony, as males do not contribute food
resources to the colony (Ellis et al. 2006,
p. 4376). Additionally, diploid males
are mostly unviable, or if viable and
mate, produce unviable eggs or sterile
daughters (Zayed 2009, p. 239 and
references within), so those males that
are produced are unable to contribute to
next year’s cohort. (See Szymanski et al.
2016, pp. 17–18 for a more detailed
explanation of this life-history
characteristic). This reproductive
strategy (haplodiploidy) makes the rusty
patched bumble bee particularly
vulnerable to the effects of a small
population size, as the species can
experience a phenomenon called a
‘‘diploid male vortex,’’ where the
proportion of nonviable males increases
as abundance declines, thereby further
reducing population size. Given this,
due to the size of the current
populations, some may no longer persist
and others are likely already quasiextirpated (the level at which a
population will go extinct, although it is
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not yet at zero individuals) (Szymanski
et al. 2016, p. 66).
Effects of climate change—Global
climate change is broadly accepted as
one of the most significant risks to
biodiversity worldwide, however,
specific impacts of climate change on
pollinators are not well understood. The
changes in climate likely to have the
greatest effects on bumble bees include:
Increased drought, increased flooding,
increased storm events, increased
temperature and precipitations, early
snow melt, late frost, and increased
variability in temperatures and
precipitation. These climate changes
may lead to decreased resource
availability (due to mismatches in
temporal and spatial co-occurrences,
such as availability of floral resources
early in the flight period), decreased
availability of nesting habitat (due to
changes in rodent populations or
increased flooding or storms), increased
stress from overheating (due to higher
temperatures), and increased pressures
from pathogens and nonnative species,
(Goulson et al. 2015, p. 4; Goulson 2016,
pers. comm.; Kerr et al. 2015, pp. 178–
179; Potts et al. 2010, p. 351; Cameron
et al. 2011a, pp. 35–37; Williams and
Osborne 2009, p. 371).
Synergistic effects—It is likely that
several of the above summarized risk
factors are acting synergistically or
additively on the species, and the
combination of multiple stressors is
likely more harmful than a single
stressor acting alone. Although the
ultimate source of the decline is
debated, and despite that the relative
role and synergistic effects of the
primary stressors are unknown, the
acute and widespread decline of rusty
patched bumble bees is undisputable.
Beneficial factors—We are aware of
only a few specific measures for bumble
bee conservation at any of the current
rusty patched bumble bee locations in
the United States. In Canada, the species
was listed as endangered on Schedule 1
of the Species at Risk Act in 2012, and
a recovery strategy has been proposed
(Environment and Climate Change
Canada 2016, entire). However, we are
aware of only nine current occurrences
(three populations) in Canada. The rusty
patched bumble bee is listed as State
endangered in Vermont and Special
Concern in Connecticut, Michigan, and
Wisconsin. Of those four States,
Wisconsin is the only State with current
records (18 populations). A few
organizations have or may soon start
monitoring programs, such as Bumble
Bee Watch (www.bumble beewatch.org),
a collaborative citizen science effort to
track North American bumble bees, and
the Xerces Society. Also, the
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International Union of Concerned
Scientists Conservation Breeding
Specialist Group has developed general
conservation guidelines for bumble bees
(Hatfield et al. 2014b, pp. 11–16;
Cameron et al. 2011a, entire). There is
an increased awareness on pollinators,
in general, and thus efforts to conserve
pollinators may have a fortuitous effect
on the rusty patched bumble bee. For
example, planting appropriate flowers
may contribute to pollinator
conservation; however, there is a need
to develop regionally appropriate,
bumble bee-specific recommendations
based on evidence of use (Goulson 2015,
p. 6).
In summary, the magnitude of
population losses and range contraction
to date have greatly reduced the rusty
patched bumble bee’s ability to adapt to
changing environmental conditions and
to guard against further losses of
adaptive diversity and potential
extinction due to catastrophic events. In
reality, the few populations persisting
and the limited distribution of these
populations have substantially reduced
the ability of the rusty patched bumble
bee to withstand environmental
variation, catastrophic events, and
changes in physical and biological
conditions. Coupled with the increased
risk of extirpation due to the interaction
of reduced population size and its
haplodiploidy reproductive strategy, the
rusty patched bumble bee may lack the
resiliency required to sustain
populations into the future, even
without further exposure to stressors.
12-Month Petition Finding on the Rusty
Patched Bumble Bee
As required by the Act, we considered
the five factors in assessing whether the
rusty patched bumblebee is an
endangered species, as cited in the
petition, throughout all of its range. We
examined the best scientific and
commercial information available
regarding the past, present, and future
threats faced by the bumble bee. We
reviewed the petition, information
available in our files, and other
available published and unpublished
information, and we consulted with
recognized bumble bee experts and
other Federal and State agencies. We
identify the threats to the rusty patched
bumble bee to be attributable to habitat
loss and degradation (Factor A), impacts
of pathogens (Factor C), impacts of
pesticides (Factor E), the effects of small
population size (Factor E), and effects of
climate change (Factor E). On the basis
of the best scientific and commercial
information available, we find that the
petitioned action to list the rusty
patched bumble bee as an endangered
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species is warranted. A determination
on the status of the species as an
endangered or threatened species is
presented below in the proposed listing
determination.
Determination
Section 4 of the Act (16 U.S.C. 1533),
and its implementing regulations at 50
CFR part 424, set forth the procedures
for adding species to the Federal Lists
of Endangered and Threatened Wildlife
and Plants. Under section 4(a)(1) of the
Act, we may list a species based on (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. Listing
actions may be warranted based on any
of the above threat factors, singly or in
combination.
We have carefully assessed the best
scientific and commercial information
available regarding the past, present,
and future threats to the rusty patched
bumble bee. Habitat loss and
degradation from residential and
commercial development and
agricultural conversion occurred
rangewide and resulted in fragmentation
and isolation of the species from
formerly contiguous native habitat.
Habitat loss and degradation has
resulted in the loss of the diverse floral
resources needed throughout the rusty
patched bumble bee’s long feeding
season, as well as loss of appropriate
nesting and overwintering sites.
Although much of the habitat
conversion occurred in the past, the
dramatic reduction and fragmentation of
habitat has persistent and ongoing
effects on the viability of populations;
furthermore, conversion of native
habitats to agriculture (i.e.,
monocultures) or other uses is still
occurring today (Factor A).
The species’ range has been reduced
by 92 percent, and its current
distribution is limited to just one to a
few populations in each of 12 States and
Ontario. Ninety-three percent of the 69
current populations are documented by
5 or fewer individuals, and only 2
populations are documented by more
than 10 individuals. Drought frequency
and increased duration of high
temperatures are likely to increase due
to climate change, further restricting
floral resources, reducing foraging
times, and fragmenting or eliminating
populations (Factor E). Fungi such as N.
bombi, parasites such as Crithidia bombi
and Apicystis bombi, deformed wing
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virus, acute bee paralysis, and bacteria
are all suspected causes of decline for
the rusty patched bumble bee (Factor C).
Pesticide use, including the use of
many insecticides that have known
lethal and sublethal effects to bumble
bees, is occurring at increasing levels
rangewide (Factor E). Similarly,
herbicide use occurs rangewide and can
reduce available floral resources (Factor
A). Additionally, the rusty patched
bumble bee is not able to naturally
recolonize unoccupied areas that are not
connected by suitable dispersal habitat
(Factors A and E).
The rusty patched bumble bee’s
reproductive strategy makes it
particularly vulnerable to the effects of
small population size, and the species
can experience a ‘‘diploid male vortex,’’
where the number of nonviable males
increases as abundance declines,
thereby further reducing population size
(Factor E). There is virtually no
redundancy of populations within each
occupied ecoregion, further increasing
the risk of loss of representation of
existing genetic lineages and,
ultimately, extinction.
These threats have already resulted in
the extirpation of the rusty patched
bumble bee throughout an estimated 92
percent of its range, and these threats
are likely to continue or increase in
severity. Although the relative
contribution of pesticides, pathogens,
loss of floral resources, and other threats
to the species’ past and continued
decline is not known, the prevailing
data indicate that threats are acting
synergistically and additively and that
the combination of multiple threats is
likely more harmful than a single threat
acting alone. These threats are occurring
rangewide, are expected to continue or
increase in the future, and are
significant because they further reduce
the already limited distribution and
decrease the resiliency of the rusty
patched bumble bee within those
limited areas.
Existing regulatory mechanisms vary
across the species’ range, and although
the rusty patched bumble bee is listed
as State endangered in Vermont (which
prohibits taking, possessing, or
transporting), as special concern (no
legal protection) in Connecticut,
Michigan, and Wisconsin, and is
protected under Canada’s Species At
Risk Act, these mechanisms do not
currently ameliorate threats to the rusty
patched bumble bee.
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
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throughout all or a significant portion of
its range within the foreseeable future.’’
We find that the rusty patched bumble
bee is presently in danger of extinction
throughout its entire range. Relative to
its historical (pre-2000s) condition, the
abundance of rusty patched bumble
bees has declined precipitously over a
short period of time. Only nine percent
of the locations where it was historically
found are currently occupied, and the
abundance of the species relative to
other Bombus species has declined from
eight percent to one percent. The
current spatial extent of occurrence is
eight percent of its historical extent.
Further adding to the species’
imperilment, its reproductive strategy
(haplodiploidy) renders bumble bees
particularly sensitive to loss of genetic
diversity, which is further exacerbated
by decreasing population size (for
example, diploid male vortex). The
small number of persisting colonies
continues to be affected by high-severity
stressors, including pathogens,
pesticides, habitat loss and degradation,
effects of climate change, and small
population dynamics throughout all of
the species’ range. These stressors are
acting synergistically and additively on
the species, and the combination of
multiple stressors is more harmful than
a single stressor acting alone. Due to the
above factors, the species does not have
the adaptive capacity in its current state
to withstand physical and biological
changes in the environment presently or
into the future, and optimistic modeling
suggests that all but one of the
ecoregions are predicted to be extirpated
within 5 years (Szymanski et al. 2016,
Table 7.3).
In conclusion, the species’ overall
range has been considerably reduced
and the remaining populations are
under threat from a variety of factors
acting in combination to significantly
reduce the overall viability of the
species. The risk of extinction is
currently high because there are a small
number of remaining populations, most
of which are extremely small in size (all
but 2 have 10 or fewer individuals), in
a severely reduced range. Therefore, on
the basis of the best available scientific
and commercial information, we
propose listing the rusty patched
bumble bee as an endangered species in
accordance with sections 3(6) and
4(a)(1) of the Act. We find that a
threatened species status is not
appropriate for the rusty patched
bumble bee because (1) given its current
condition, the species lacks the ability
to withstand physical and biological
changes in the environment presently
and into the future; (2) based on the
prediction that all but one ecoregion
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will be extinct within 5 years, the
species presently has a high probability
of extinction based on its current status;
and (3) even were the current stressors
to be reduced or eliminated, the species
is at high risk of extinction based on
small population size effects alone.
Under the Act and our implementing
regulations, a species may warrant
listing if it is endangered or threatened
throughout all or a significant portion of
its range. Because we have determined
that the rusty patched bumble bee is
endangered throughout all of its range,
no portion of its range can be
‘‘significant’’ for purposes of the
definitions of ‘‘endangered species’’ and
‘‘threatened species.’’ See the Final
Policy on Interpretation of the Phrase
‘‘Significant Portion of Its Range’’ in the
Endangered Species Act’s Definitions of
‘‘Endangered Species’’ and ‘‘Threatened
Species’’ (79 FR 37577; July 1, 2014).
Critical Habitat
Section 4(a)(3) of the Act, as
amended, and implementing regulations
in title 50 of the Code of Federal
Regulations (50 CFR 424.12), require
that, to the maximum extent prudent
and determinable, we designate critical
habitat at the time the species is
determined to be an endangered or
threatened species. Critical habitat is
defined in section 3 of the Act as:
(1) The specific areas within the
geographical area occupied by the
species, at the time it is listed in
accordance with the Act, on which are
found those physical or biological
features
(a) Essential to the conservation of the
species, and
(b) Which may require special
management considerations or
protection; and
(2) Specific areas outside the
geographical area occupied by the
species at the time it is listed, upon a
determination that such areas are
essential for the conservation of the
species.
Our regulations at 50 CFR 424.02
define the geographical area occupied
by the species as: An area that may
generally be delineated around species’
occurrences, as determined by the
Secretary (i.e., range). Such areas may
include those areas used throughout all
or part of the species’ life cycle, even if
not used on a regular basis (for example,
migratory corridors, seasonal habitats,
and habitats used periodically, but not
solely by vagrant individuals).
Conservation, as defined under
section 3 of the Act, means to use, and
the use of, all methods and procedures
that are necessary to bring an
endangered or threatened species to the
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point at which the measures provided
pursuant to the Act are no longer
necessary. Such methods and
procedures include, but are not limited
to, all activities associated with
scientific resources management such as
research, census, law enforcement,
habitat acquisition and maintenance,
propagation, live trapping, and
transplantation, and, in the
extraordinary case where population
pressures within a given ecosystem
cannot be otherwise relieved, may
include regulated taking.
Critical habitat receives protection
under section 7 of the Act through the
requirement that Federal agencies
ensure, in consultation with the Service,
that any action they authorize, fund, or
carry out is not likely to result in the
destruction or adverse modification of
critical habitat. The designation of
critical habitat does not affect land
ownership or establish a refuge,
wilderness, reserve, preserve, or other
conservation area. Critical habitat
designation does not allow the
government or public to access private
lands, nor does it require
implementation of restoration, recovery,
or enhancement measures by nonFederal landowners. Where a landowner
requests Federal agency funding or
authorization for an action that may
affect a listed species or critical habitat,
the Federal agency would be required to
consult under section 7(a)(2) of the Act,
but even if consultation leads to a
finding that the action would likely
cause destruction or adverse
modification of critical habitat, the
resulting obligation of the Federal action
agency and the landowner is not to
restore or recover the species, but rather
to implement reasonable and prudent
alternatives to avoid destruction or
adverse modification of critical habitat.
Under the first prong of the Act’s
definition of critical habitat, areas
within the geographical area occupied
by the species at the time it was listed
are included in a critical habitat
designation if they contain physical or
biological features (1) that are essential
to the conservation of the species and
(2) that may require special management
considerations or protection. For these
areas, critical habitat designations
identify, to the extent known using the
best scientific and commercial data
available, those physical or biological
features that are essential to the
conservation of the species (such as
space, food, cover, and protected
habitat). In identifying those physical or
biological features, we focus on the
specific features that support the lifehistory needs of the species, including
but not limited to, water characteristics,
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soil type, geological features, prey,
vegetation, symbiotic species, or other
features. A feature may be a single
habitat characteristic, or a more
complex combination of habitat
characteristics. Features may include
habitat characteristics that support
ephemeral or dynamic habitat
conditions. Features may also be
expressed in terms relating to principles
of conservation biology, such as patch
size, distribution distances, and
connectivity. Under the second prong of
the Act’s definition of critical habitat,
we can designate critical habitat in areas
outside the geographical area occupied
by the species at the time it is listed if
we determine that such areas are
essential for the conservation of the
species.
Section 4 of the Act requires that we
designate critical habitat on the basis of
the best scientific data available.
Further, our Policy on Information
Standards Under the Endangered
Species Act (published in the Federal
Register on July 1, 1994 (59 FR 34271)),
the Information Quality Act (section 515
of the Treasury and General
Government Appropriations Act for
Fiscal Year 2001 (Pub. L. 106–554; H.R.
5658)), and our associated Information
Quality Guidelines, provide criteria,
establish procedures, and provide
guidance to ensure that our decisions
are based on the best scientific data
available. For example, they require our
biologists, to the extent consistent with
the Act and with the use of the best
scientific data available, to use primary
and original sources of information as
the basis for recommendations to
designate critical habitat.
Our regulations (50 CFR 424.12(a)(1))
state that the designation of critical
habitat is not prudent when any of the
following situations exist: (i) The
species is threatened by taking or other
human activity, and identification of
critical habitat can be expected to
increase the degree of threat to the
species, or (ii) such designation of
critical habitat would not be beneficial
to the species. The regulations also
provide that, in determining whether a
designation of critical habitat would not
be beneficial to the species, the factors
the Services may consider include but
are not limited to: Whether the present
or threatened destruction, modification,
or curtailment of a species’ habitat or
range is not a threat to the species, or
whether any areas meet the definition of
‘‘critical habitat’’ (50 CFR
424.12(a)(1)(ii)).
We do not know of any imminent
threat of take attributed to collection or
vandalism for the rusty patched bumble
bee. The available information does not
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indicate that identification and mapping
of critical habitat is likely to initiate any
threat of collection or vandalism for the
bee. Therefore, in the absence of finding
that the designation of critical habitat
would increase threats to the species, if
there are benefits to the species from a
critical habitat designation, a finding
that designation is prudent is warranted.
The potential benefits of designation
may include: (1) Triggering consultation
under section 7 of the Act, in new areas
for actions in which there may be a
Federal nexus where it would not
otherwise occur because, for example, it
is unoccupied; (2) focusing conservation
activities on the most essential features
and areas; (3) providing educational
benefits to State or county governments
or private entities; and (4) preventing
people from causing inadvertent harm
to the protected species. Because
designation of critical habitat will not
likely increase the degree of threat to the
species and may provide some measure
of benefit, designation of critical habitat
may be prudent for the rusty patched
bumble bee.
Our regulations (50 CFR 424.12(a)(2))
further state that critical habitat is not
determinable when one or both of the
following situations exists: (1)
Information sufficient to perform
required analysis of the impacts of the
designation is lacking; or (2) the
biological needs of the species are not
sufficiently well known to permit
identification of an area as critical
habitat.
Delineation of critical habitat
requires, within the geographical area
occupied by the species, identification
of the physical or biological features
essential to the species’ conservation.
Information regarding the rusty patched
bumble bee life functions is complex,
and complete data are lacking for most
of them. We require additional time to
analyze the best available scientific data
in order to identify specific areas
appropriate for critical habitat
designation and to prepare and process
a proposed rule. Accordingly, we find
designation of critical habitat for these
species in accordance with section
4(3)(A) of the Act to be ‘‘not
determinable’’ at this time.
Available Conservation Measures
Conservation measures provided to
species listed as endangered or
threatened species under the Act
include recognition, recovery actions,
requirements for Federal protection, and
prohibitions against certain practices.
Recognition through listing results in
public awareness, and conservation by
Federal, State, Tribal, and local
agencies, private organizations, and
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individuals. The Act encourages
cooperation with the States and other
countries and calls for recovery actions
to be carried out for listed species. The
protection required by Federal agencies
and the prohibitions against certain
activities are discussed, in part, below.
The primary purpose of the Act is the
conservation of endangered and
threatened species and the ecosystems
upon which they depend. The ultimate
goal of such conservation efforts is the
recovery of these listed species, so that
they no longer need the protective
measures of the Act. Subsection 4(f) of
the Act calls for the Service to develop
and implement recovery plans for the
conservation of endangered and
threatened species. The recovery
planning process involves the
identification of actions that are
necessary to address the threats to its
survival and recovery. The goal of this
process is to restore listed species to a
point where they are secure, selfsustaining, and functioning components
of their ecosystems.
Recovery planning includes the
development of a draft and final
recovery plan. Revisions of the plan
may be done to address continuing or
new threats to the species, as new
substantive information becomes
available. The recovery plan also
identifies recovery criteria for review of
when a species may be ready for
downlisting or delisting, and methods
for monitoring recovery progress.
Recovery plans also establish a
framework for agencies to coordinate
their recovery efforts and provide
estimates of the cost of implementing
recovery tasks. When completed, the
draft recovery plan and the final
recovery plan will be available on our
Web site (https://www.fws.gov/
endangered), or from our Twin Cities
Ecological Service Field Office (see FOR
FURTHER INFORMATION CONTACT).
Implementation of recovery actions
generally requires the participation of a
broad range of partners, including other
Federal agencies, States, Tribes,
nongovernmental organizations,
businesses, and private landowners.
Examples of recovery actions include
habitat restoration (for example,
restoration of native vegetation),
research, captive propagation and
reintroduction, and outreach and
education. The recovery of many listed
species cannot be accomplished solely
on Federal lands because their range
may occur primarily or solely on nonFederal lands. To achieve recovery of
these species requires cooperative
conservation efforts on private, State,
and Tribal lands. If this species is listed,
funding for recovery actions will be
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available from a variety of sources,
including Federal budgets, State
programs, and cost-share grants for nonFederal landowners, the academic
community, and nongovernmental
organizations. In addition, pursuant to
section 6 of the Act, the States of
Connecticut, Delaware, Georgia, Illinois,
Indiana, Iowa, Kentucky, Maine,
Maryland, Massachusetts, Michigan,
Minnesota, Missouri, New Hampshire,
New Jersey, New York, North Carolina,
North Dakota, Ohio, Pennsylvania,
Rhode Island, South Carolina, South
Dakota, Tennessee, Vermont, Virginia,
West Virginia, and Wisconsin would be
eligible for Federal funds to implement
management actions that promote the
protection or recovery of the rusty
patched bumble bee. Information on our
grant programs that are available to aid
species recovery can be found at: https://
www.fws.gov/grants.
Although the rusty patched bumble
bee is only proposed for listing under
the Act at this time, please let us know
if you are interested in participating in
conservation efforts for this species.
Additionally, we invite you to submit
any new information on this species
whenever it becomes available and any
information you may have for recovery
planning purposes (see FOR FURTHER
INFORMATION CONTACT).
Section 7(a) of the Act requires
Federal agencies to evaluate their
actions with respect to any species that
is proposed or listed as an endangered
or threatened species and with respect
to its critical habitat, if any is proposed
or designated. Regulations
implementing this interagency
cooperation provision of the Act are
codified at 50 CFR part 402. Section
7(a)(4) of the Act requires Federal
agencies to confer with the Service on
any action that is likely to jeopardize
the continued existence of a species
proposed for listing or result in
destruction or adverse modification of
proposed critical habitat. If a species is
listed subsequently, section 7(a)(2) of
the Act requires Federal agencies to
ensure that activities they authorize,
fund, or carry out are not likely to
jeopardize the continued existence of
the species or destroy or adversely
modify its critical habitat. If a Federal
action may affect a listed species or its
critical habitat, the responsible Federal
agency must enter into consultation
with the Service.
Federal agency actions within the
species’ habitat that may require
conference or consultation or both as
described in the preceding paragraph
include management and any other
landscape-altering activities on Federal
lands, for example, lands administered
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by the National Park Service, U.S. Fish
and Wildlife Service, and U.S. Forest
Service.
The Act and its implementing
regulations set forth a series of general
prohibitions and exceptions that apply
to endangered wildlife. The prohibitions
of section 9(a)(1) of the Act, codified at
50 CFR 17.21, make it illegal for any
person subject to the jurisdiction of the
United States to take (which includes
harass, harm, pursue, hunt, shoot,
wound, kill, trap, capture, or collect; or
to attempt any of these) endangered
wildlife within the United States or on
the high seas. In addition, it is unlawful
to import; export; deliver, receive, carry,
transport, or ship in interstate or foreign
commerce in the course of commercial
activity; or sell or offer for sale in
interstate or foreign commerce any
listed species. It is also illegal to
possess, sell, deliver, carry, transport, or
ship any such wildlife that has been
taken illegally. Certain exceptions apply
to employees of the Service, the
National Marine Fisheries Service, other
Federal land management agencies, and
State conservation agencies.
We may issue permits to carry out
otherwise prohibited activities
involving endangered wildlife under
certain circumstances. Regulations
governing permits are codified at 50
CFR 17.22. With regard to endangered
wildlife, a permit may be issued for the
following purposes: For scientific
purposes, to enhance the propagation or
survival of the species, and for
incidental take in connection with
otherwise lawful activities. There are
also certain statutory exemptions from
the prohibitions, which are found in
sections 9 and 10 of the Act.
It is our policy, as published in the
Federal Register on July 1, 1994 (59 FR
34272), to identify to the maximum
extent practicable at the time a species
is listed, those activities that would or
would not constitute a violation of
section 9 of the Act. The intent of this
policy is to increase public awareness of
the effect of a proposed listing on
proposed and ongoing activities within
the range of the species proposed for
listing.
Based on the best available
information, the following activities
may potentially result in a violation of
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section 9 of the Act; this list is not
comprehensive:
(1) Unauthorized handling or
collecting of the species;
(2) The unauthorized release of
biological control agents that attack any
life stage of the rusty patched bumble
bee, including the unauthorized use of
herbicides, pesticides, or other
chemicals in habitats in which the rusty
patched bumble bee is known to occur;
(3) Unauthorized release of nonnative
species or native species that carry
pathogens, diseases, or fungi that are
known or suspected to adversely affect
rusty patched bumble bee where the
species is known to occur;
(4) Unauthorized modification,
removal, or destruction of the habitat
(including vegetation and soils) in
which the rusty patched bumble bee is
known to occur; and
(5) Unauthorized discharge of
chemicals or fill material into any
wetlands in which the rusty patched
bumble bee is known to occur.
Questions regarding whether specific
activities would constitute a violation of
section 9 of the Act should be directed
to the Twin Cities Ecological Services
Field Office (see FOR FURTHER
INFORMATION CONTACT).
Required Determinations
Clarity of the Rule
We are required by Executive Orders
12866 and 12988 and by the
Presidential Memorandum of June 1,
1998, to write all rules in plain
language. This means that each rule we
publish must:
(1) Be logically organized;
(2) Use the active voice to address
readers directly;
(3) Use clear language rather than
jargon;
(4) Be divided into short sections and
sentences; and
(5) Use lists and tables wherever
possible.
If you feel that we have not met these
requirements, send us comments by one
of the methods listed in ADDRESSES. To
better help us revise the rule, your
comments should be as specific as
possible. For example, you should tell
us the numbers of the sections or
paragraphs that are unclearly written,
which sections or sentences are too
long, the sections where you feel lists or
tables would be useful, etc.
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65333
National Environmental Policy Act
(42 U.S.C. 4321 et seq.)
We have determined that
environmental assessments and
environmental impact statements, as
defined under the authority of the
National Environmental Policy Act
(NEPA; 42 U.S.C. 4321 et seq.), need not
be prepared in connection with listing
a species as an endangered or
threatened species under the
Endangered Species Act. We published
a notice outlining our reasons for this
determination in the Federal Register
on October 25, 1983 (48 FR 49244).
References Cited
A complete list of references cited in
this rulemaking is available on the
Internet at https://www.regulations.gov
and upon request from the Twin Cities
Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Authors
The primary authors of this proposed
rule are the staff members of the Twin
Cities Ecological Services Field Office
and the Region 3 Regional Office.
List of Subjects in 50 CFR Part 17
Endangered and threatened species,
Exports, Imports, Reporting and
recordkeeping requirements,
Transportation.
Proposed Regulation Promulgation
Accordingly, we propose to amend
part 17, subchapter B of chapter I, title
50 of the Code of Federal Regulations,
as set forth below:
PART 17—ENDANGERED AND
THREATENED WILDLIFE AND PLANTS
1. The authority citation for part 17
continues to read as follows:
■
Authority: 16 U.S.C. 1361–1407; 1531–
1544; 4201–4245; unless otherwise noted.
2. In § 17.11(h) add an entry for
‘‘Bumble bee, rusty patched’’ to the List
of Endangered and Threatened Wildlife
in alphabetical order under INSECTS to
read as follows:
■
§ 17.11 Endangered and threatened
wildlife.
*
*
*
(h) * * *
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*
65334
Federal Register / Vol. 81, No. 184 / Thursday, September 22, 2016 / Proposed Rules
Common name
*
INSECTS
*
Bumble bee, rusty
patched.
*
Scientific name
*
Where listed
*
*
*
Bombus affinis ..............
*
Status
*
*
*
Wherever found ............
*
Listing citations and applicable rules
*
*
E
*
*
*
[Federal Register citation when published as a
final rule].
*
*
Dated: September 12, 2016.
Stephen Guertin,
Acting Director, U.S. Fish and Wildlife
Service.
[FR Doc. 2016–22799 Filed 9–21–16; 8:45 am]
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Agencies
[Federal Register Volume 81, Number 184 (Thursday, September 22, 2016)]
[Proposed Rules]
[Pages 65324-65334]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-22799]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R3-ES-2015-0112; 4500030113]
RIN 1018-BB66
Endangered and Threatened Wildlife and Plants; Endangered Species
Status for Rusty Patched Bumble Bee
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: We, the U.S. Fish and Wildlife Service (Service), announce a
12-month finding on a petition to list the rusty patched bumble bee
(Bombus affinis) as endangered or threatened under the Endangered
Species Act, as amended (Act). After review of the best available
scientific and commercial information, we find that listing the rusty
patched bumble bee is warranted. Accordingly, we propose to list the
rusty patched bumble bee, a species that occurs in the eastern and
midwestern United States and Ontario, Canada, as an endangered species
under the Endangered Species Act (Act). If we finalize this rule as
proposed, it would extend the Act's protections to this species. The
effect of this regulation will be to add this species to the List of
Endangered and Threatened Wildlife.
DATES: We will accept comments received or postmarked on or before
November 21, 2016. Comments submitted electronically using the Federal
eRulemaking Portal (see ADDRESSES below) must be received by 11:59 p.m.
Eastern Time on the closing date. We must receive requests for public
hearings, in writing, at the address shown in FOR FURTHER INFORMATION
CONTACT by November 7, 2016.
ADDRESSES: You may submit comments by one of the following methods:
(1) Electronically: Go to the Federal eRulemaking Portal: https://www.regulations.gov. In the Search box, enter FWS-R3-ES-2015-0112,
which is the docket number for this rulemaking. Then, in the Search
panel on the left side of the screen, under the Document Type heading,
click on the Proposed Rules link to locate this document. You may
submit a comment by clicking on ``Comment Now!''
(2) By hard copy: Submit by U.S. mail or hand-delivery to: Public
Comments Processing, Attn: FWS-R3-ES-2015-0112; U.S. Fish and Wildlife
Service Headquarters, MS: BPHC, 5275 Leesburg Pike, Falls Church, VA
22041-3803.
We request that you send comments only by the methods described
above. We will post all comments on https://www.regulations.gov. This
generally means that we will post any personal information you provide
us (see Public Comments below for more information).
FOR FURTHER INFORMATION CONTACT: Peter Fasbender, Field Supervisor,
U.S. Fish and Wildlife Service, Twin Cities Ecological Services Field
Office, 4101 American Blvd. E., Bloomington, MN 55425, by telephone
952-252-0092, extension 210. Persons who use a telecommunications
device for the deaf (TDD) may call the Federal Information Relay
Service (FIRS) at 800-877-8339.
SUPPLEMENTARY INFORMATION:
Executive Summary
Why we need to publish a proposed rule. Under the Act, if a species
is determined to be an endangered or threatened species throughout all
or a significant portion of its range, we are required to promptly
publish a proposal in the Federal Register and make a determination on
our proposal within 1 year. Critical habitat shall be designated, to
the maximum extent prudent and determinable, for any species determined
to be an endangered or threatened species under the Act. Listing a
species as an endangered or threatened species and designations and
revisions of critical habitat can only be completed by issuing a rule.
This rulemaking will propose the listing of the rusty patched bumble
bee (Bombus affinis) as an endangered species.
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. While the exact cause of the species' decline is
uncertain, the primary causes attributed to the decline include habitat
loss and degradation, pathogens, pesticides, and small population
dynamics.
We will seek peer review. We sought comments on the species status
assessment (SSA) from independent specialists to ensure that our
analysis was based on scientifically sound data, assumptions, and
analyses. We will also invite these peer reviewers to comment on our
listing proposal. Because we will consider all comments and information
received during the comment period, our final determinations may differ
from this proposal.
An SSA team prepared an SSA report for the rusty patched bumble
bee. The SSA team was composed of U.S. Fish and Wildlife Service
biologists, in consultation with other species experts. The SSA
represents a compilation of the best scientific and commercial data
available concerning the status of the species, including the impacts
of past, present, and future factors (both negative and beneficial)
affecting the rusty patched bumble bee. The SSA underwent independent
peer review by 15 scientists with expertise in bumble bee biology,
habitat management, and stressors (factors negatively affecting the
[[Page 65325]]
species) to the species. The SSA and other materials relating to this
proposal can be found on the Midwest Region Web site at https://www.fws.gov/midwest/Endangered/ and at https://www.regulations.gov under
docket number FWS-R3-ES-2015-0112.
Information Requested
Public Comments
We intend that any final action resulting from this proposed rule
will be based on the best scientific and commercial data available and
be as accurate and effective as possible. Therefore, we request
comments or information from the public, other concerned governmental
agencies, Native American tribes, the scientific community, industry,
or any other interested parties concerning this proposed rule. We
particularly seek comments concerning:
(1) The rusty patched bumble bee's biology, range, and population
trends, including:
(a) Biological or ecological requirements of the species, including
habitat requirements for feeding, breeding, and sheltering;
(b) Genetics and taxonomy;
(c) Historical and current range, including distribution patterns
(in particular, we are interested in the locations and dates of surveys
targeting bumble bees within the historical range of the rusty patched
bumble bee, including negative survey results);
(d) Historical and current population levels, and current and
projected trends; and
(e) Past and ongoing conservation measures for the species, its
habitat, or both.
(2) Factors that may affect the continued existence of the species,
which may include habitat modification or destruction, overutilization,
disease, predation, the inadequacy of existing regulatory mechanisms,
or other natural or manmade factors.
(3) Biological, commercial trade, or other relevant data concerning
any threats (or lack thereof) to this species and existing conservation
measures or regulations that may be addressing those threats.
(4) The reasons why any habitat should or should not be determined
to be critical habitat for the rusty patched bumble bee as provided by
section 4 of the Act, including physical or biological features within
areas that are occupied or specific areas outside of the geographic
area that are occupied that are essential for the conservation of the
species.
Please include sufficient information with your submission (such as
scientific journal articles or other publications) to allow us to
verify any scientific or commercial information you include.
Please note that submissions merely stating support for or
opposition to the action under consideration without providing
supporting information, although noted, will not be considered in
making a determination, as section 4(b)(1)(A) of the Act directs that
determinations as to whether any species is a threatened or endangered
species must be made ``solely on the basis of the best scientific and
commercial data available.''
You may submit your comments and materials concerning this proposed
rule by one of the methods listed in ADDRESSES. We request that you
send comments only by the methods described in ADDRESSES.
If you submit information via https://www.regulations.gov, your
entire submission--including any personal identifying information--will
be posted on the Web site. If your submission is made via a hardcopy
that includes personal identifying information, you may request at the
top of your document that we withhold this information from public
review. However, we cannot guarantee that we will be able to do so. We
will post all hardcopy submissions on https://www.regulations.gov.
Comments and materials we receive, as well as supporting
documentation we used in preparing this proposed rule, will be
available for public inspection on https://www.regulations.gov, or by
appointment, during normal business hours, at the U.S. Fish and
Wildlife Service, Twin Cities Ecological Service Field Office (see FOR
FURTHER INFORMATION CONTACT).
Public Hearing
Section 4(b)(5) of the Endangered Species Act of 1973, as amended
(Act; 16 U.S.C. 1531 et seq.), provides for one or more public hearings
on this proposal, if requested. Requests must be received within 45
days after the date of publication of this proposed rule in the Federal
Register. Such requests must be sent to the address shown in FOR
FURTHER INFORMATION CONTACT. We will schedule public hearings on this
proposal, if any are requested, and announce the dates, times, and
places of those hearings, as well as how to obtain reasonable
accommodations, in the Federal Register and local newspapers at least
15 days before the hearing.
Peer Review
In accordance with our joint policy on peer review published in the
Federal Register on July 1, 1994 (59 FR 34270), we sought the expert
opinions of 25 appropriate and independent specialists regarding the
Species Status Assessment, which informed this proposed rule. The
purpose of peer review is to ensure that our listing determination is
based on scientifically sound data, assumptions, and analyses. The peer
reviewers have expertise in bumble bee biology, habitat, and stressors
(factors negatively affecting the species) to the species. We invite
additional comment from the peer reviewers during this public comment
period.
Previous Federal Action
We received a petition from The Xerces Society for Invertebrate
Conservation (Xerces Society) to list the rusty patched bumble bee as
an endangered species on February 5, 2013. On May 13, 2014, the Xerces
Society filed a lawsuit against the Service for failure to complete a
petition finding in accordance with statutory deadlines. Per a December
24, 2014, settlement agreement with the Xerces Society, we agreed to
make a 90-day finding no later than September 30, 2015, and, if that
finding were substantial, to complete a 12-month finding no later than
September 30, 2016. On September 18, 2015, we published in the Federal
Register a 90-day finding that the petition presented substantial
information indicating that listing the species may be warranted (80 FR
56423). We then conducted a status review, and this proposed listing
rule constitutes our 12-month petition finding for the species.
Background
A thorough review of the taxonomy, life history, and ecology of the
rusty patched bumble bee (Bombus affinis) is presented in the species
status assessment report (Szymanski et al. 2016, Chapter 2; available
at https://www.fws.gov/midwest/Endangered/ and at https://www.regulations.gov under Docket No. FWS-R3-ES-2015-0112). All bumble
bees, including the rusty patched, belong to the genus Bombus (within
the family Apidae) (Williams et al. 2008, p. 53).
The rusty patched bumble bee is a eusocial (highly social) organism
forming colonies consisting of a single queen, female workers, and
males. Colony sizes of B. affinis are considered large compared to
other bumble bees, and healthy colonies may consist of up to 1,000
individual workers in a season (Macfarlane et al. 1994, pp. 3-4).
Queens and workers differ slightly in size and coloration; queens are
larger than workers (Plath 1922, p. 192, Mitchell 1962, p. 518). All
rusty patched
[[Page 65326]]
bumble bees have entirely black heads, but only workers and males have
a rusty reddish patch centrally located on the abdomen.
The rusty patched bumble bee's annual cycle begins in early spring
with colony initiation by solitary queens and progresses with the
production of workers throughout the summer and ending with the
production of reproductive individuals (males and potential queens) in
mid- to late summer and early fall (Macfarlane et al. 1994, p. 4; Colla
and Dumesh 2010, p. 45; Plath 1922, p. 192). The males and new queens
disperse to mate and the original founding queen, males, and workers
die. The new queens go into diapause (a form of hibernation) over
winter. The following spring, the queen, or foundress, searches for
suitable nest sites and collects nectar and pollen from flowers to
support the production of her eggs, which are fertilized by sperm she
has stored since mating the previous fall. She is solely responsible
for establishing the colony. As the workers hatch and the colony grows,
they assume the responsibility of food collection, colony defense, and
care of the young, while the foundress remains within the nest and
continues to lay eggs. During later stages of colony development, in
mid-July or August to September, the new queens and males hatch from
eggs. At the end of the season the foundress dies and the new queens
(gynes, or reproductive females) mate before hibernating.
The rusty patched bumble bee has been observed and collected in a
variety of habitats, including prairies, woodlands, marshes,
agricultural landscapes, and residential parks and gardens (Colla and
Packer 2008, p. 1381; Colla and Dumesh 2010, p. 46; USFWS rusty patched
bumble bee unpublished geodatabase 2016). The species requires areas
that support sufficient food (nectar and pollen from diverse and
abundant flowers), undisturbed nesting sites in proximity to floral
resources, and overwintering sites for hibernating queens (Goulson et
al. 2015, p. 2; Potts et al. 2010, p. 349). Rusty patched bumble bees
live in temperate climates, and are not likely to survive prolonged
periods of high temperatures (over 35 [deg]Celsius (C)
(95[emsp14][deg]F (F)) (Goulson 2016, pers. comm.).
Bumble bees are generalist foragers, meaning they gather pollen and
nectar from a wide variety of flowering plants (Xerces 2013, pp. 27-
28). The rusty patched bumble bee is one of the first bumble bees to
emerge early in the spring and the last to go into hibernation, so to
meet its nutritional needs, the species requires a constant and diverse
supply of blooming flowers.
Rusty patched bumble bee nests are typically in abandoned rodent
nests or other similar cavities (Plath 1922, pp. 190-191; Macfarlane et
al. 1994, p. 4). Little is known about the overwintering habitats of
rusty patched bumble bee foundress queens, but other species of Bombus
typically form a chamber in soft soil, a few centimeters deep, and
sometimes use compost or mole hills to overwinter (Goulson 2010, p.
11).
Prior to the mid- to late 1990s, the rusty patched bumble bee was
widely distributed across areas of 31 States/Provinces: Connecticut,
Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa,
Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota,
Missouri, New Hampshire, New Jersey, New York, North Carolina, North
Dakota, Ohio, Ontario, Pennsylvania, Quebec, Rhode Island, South
Carolina, South Dakota, Tennessee, Vermont, Virginia, West Virginia,
and Wisconsin. Since 2000, the rusty patched bumble bee has been
reported from 13 States/Provinces: Illinois, Indiana, Maine, Maryland,
Massachusetts, Minnesota, North Carolina/Tennessee (single record on
the border between the States), Ontario, Ohio, Pennsylvania, Virginia,
and Wisconsin (Figure 1).
Summary of Biological Status and Threats
The Act directs us to determine whether any species is an
endangered species or a threatened species because of any factors
affecting its continued existence. We completed a comprehensive
assessment of the biological status of the rusty patched bumble bee,
and prepared a report of the assessment, which provides a thorough
account of the species' overall viability. We define viability as the
ability of the species to persist over the long term and, conversely,
to avoid extinction. In this section, we summarize the conclusions of
that assessment, which can be accessed at Docket No. FWS-R3-ES-2015-
0112 on https://www.regulations.gov and at https://www.fws.gov/midwest/Endangered/. The reader is directed to the Rusty Patched Bumble Bee
(Bombus affinis) Species Status Assessment (SSA report; Szymanski et
al. 2016) for a detailed discussion of our evaluation of the biological
status of the rusty patched bumble bee and the influences that may
affect its continued existence.
To assess rusty patched bumble bee viability, we used the three
conservation biology principles of resiliency, representation, and
redundancy (Shaffer and Stein 2000, pp. 306-310). Briefly, resiliency
supports the ability of the species to withstand environmental
stochasticity (for example, wet or dry, warm or cold years);
representation supports the ability of the species to adapt over time
to long-term changes in the environment (for example, climate changes);
and redundancy supports the ability of the species to withstand
catastrophic events (for example, droughts, hurricanes). In general,
the more redundant, representative, and resilient a species is, the
more likely it is to sustain populations over time, even under changing
environmental conditions. Using these principles, we identified the
species' ecological requirements for survival and reproduction at the
individual, population, and species levels, and described the
beneficial and risk factors influencing the species' viability.
We evaluated the change in resiliency, representation, and
redundancy from the past until the present, and projected the
anticipated future states of these conditions. To forecast the
biological condition into the future, we devised likely future
scenarios by eliciting expert information on the primary stressors
anticipated in the future to the rusty patched bumble bee: Pathogens,
pesticides, habitat loss and degradation, climate change, and small
population dynamics. To assess resiliency, we evaluated the trend in
rusty patched bumble bee occurrences (populations) over time and the
trend in the species abundance relative to all Bombus spp. over time.
To forecast anticipated future abundance, we used a population model to
project the number of populations expected to persist based on
plausible future risk scenarios. To assess representation (as an
indicator of adaptive capacity) of the rusty patched bumble bee, we
evaluated the spatial extent of occurrences over time. At a coarse
scale, we tallied the number of counties, States, and ecoregions
occupied by the species. Ecoregions are areas defined by environmental
conditions including climate, landforms, and soil characteristics.
Bailey Ecoregions (Bailey 1983, Bailey et al. 1994) and the equivalent
Canadian Ecoregions (Ecological Stratification Working Group, 1996)
were used. At a finer scale, we calculated the extent of occurrence
within each ecoregion (within the historically occupied range) over
time. To assess redundancy, we calculated the risk of ecoregion-wide
extirpations given the number of populations present historically,
currently, and forecasted for 5 to 50 years into the future.
[[Page 65327]]
Our analyses indicate that the resiliency, representation, and
redundancy of the rusty patched bumble bee have all declined since the
late 1990s and are projected to continue to decline over the next
several decades. Historically, the species was abundant and widespread,
with hundreds of populations across an expansive range, and was the
fourth-ranked Bombus species in our relative abundance analysis.
Since the late 1990s, rusty patched bumble bee abundance and
distribution has declined significantly. The number of populations has
declined by 91 percent (from 845 historically (historical = occurrences
in the period 1900-1999) to 69 currently (current = occurrences in the
period 2000-2015)), and the rusty patched bumble bee's relative
abundance declined from 8 percent historically, to 1 percent currently.
Many of the current populations, however, have not been reconfirmed
since the early 2000s and may no longer persist. For example, no rusty
patched bumble bees were observed at any of the historical sites that
were revisited in 2015. Also, many of the current populations (64 of 69
(93 percent)) are documented by 5 or fewer individuals; only 2
populations are documented by more than 10 individuals (healthy
colonies consist of up to 1,000 individual workers, and a healthy
population contains tens to hundreds of colonies (Macfarlane et al.
1994, pp. 3-4)).
Along with the loss of populations, a marked decrease in the
spatial extent has occurred in recent times. As noted above, the rusty
patched bumble bee was broadly distributed historically across the
eastern United States, upper Midwest, and southern Quebec and Ontario,
an area comprising 15 ecoregions, 31 States/Provinces, and 378
counties. Since 2000, the species' distribution has declined across its
range, with current records from 6 ecoregions, 13 States/Provinces, and
41 counties (Figure 1). The spatial extent of the species' current
range has been reduced to 8 percent of its historical extent. The loss
of occurrences has increased the risk of ecoregion-wide extirpations
due to catastrophic events (i.e., severe drought and prolonged, high
temperatures).
[GRAPHIC] [TIFF OMITTED] TP22SE16.005
Many of the existing populations continue to face the effects of
past and ongoing stressors, including pathogens, pesticides, habitat
loss and degradation, small population dynamics, and climate change. A
brief summary of these primary stressors is presented below; for a full
description of these stressors, refer to Chapter 5 of the SSA report.
Pathogens--The precipitous decline of several bumble bee species
(including the rusty patched) from the mid-1990s to present was
contemporaneous with the collapse in populations of
[[Page 65328]]
commercially bred western bumble bees (B. occidentalis), raised
primarily to pollinate greenhouse tomato and sweet pepper crops,
beginning in the late 1980s (for example, Szabo et al. 2012, pp. 232-
233). This collapse was attributed to the microsporidium (fungus)
Nosema bombi. Around the same time, several North American wild bumble
bee species also began to decline rapidly (Szabo et al. 2012, p. 232).
The temporal congruence and speed of these declines led to the
suggestion that they were caused by transmission or ``spillover'' of N.
bombi from the commercial colonies to wild populations through shared
foraging resources. Patterns of losses observed, however, cannot be
completely explained by exposure to N. bombi. Several experts have
surmised that N. bombi may not be the culpable (or only culpable)
pathogen in the precipitous decline of certain wild bumble bees in
North America (for example, Goulson 2016, pers. comm.; Strange and
Tripodi 2016, pers. comm.), and the evidence for chronic pathogen
spillover from commercial bumble bees as a main cause of decline
remains debatable (see various arguments in Colla et al. 2006, entire;
Otterstatter and Thomson 2008, entire; Szabo et al. 2012, entire;
Manley et al. 2015, entire).
In addition to fungi such as N. bombi, other viruses, bacteria, and
parasites are being investigated for their effects on bumble bees in
North America, such as deformed wing virus, acute bee paralysis, and
parasites such as Crithidia bombi and Apicystis bombi (for example,
Szabo et al. 2012, p. 237; Manley et al. 2015, p. 2; Tripodi 2016,
pers. comm.; Goulson et al. 2015, p. 3). Little is known about these
diseases in bumble bees, and no studies specific to the rusty patched
bumble bee have been conducted. Refer to Szymanski et al. (2016, pp.
40-43) for a brief summary of those that have the greatest potential to
affect the rusty patched bumble bee.
Pesticides--A variety of pesticides are widely used in
agricultural, urban, and even natural environments, and native bumble
bees are simultaneously exposed to multiple pesticides, including
insecticides, fungicides, and herbicides. The pesticides with greatest
effects on bumble bees are insecticides and herbicides: Insecticides
are specifically designed to directly kill insects, including bumble
bees, and herbicides reduce available floral resources, thus indirectly
affecting bumble bees. Although the overall toxicity of pesticides to
rusty patched or other bumble bees is unknown, pesticides have been
documented to have both lethal and sublethal effects (for example,
reduced or no male production, reduced or no egg hatch, and reduced
queen production and longevity) on bumble bees (for example, Gill et
al. 2012, p. 107; Mommaerts et al. 2006, pp. 3-4; Fauser-Misslin et al.
2014, pp. 453-454).
Neonicotinoids are a class of insecticides used to target pests of
agricultural crops, forests (for example, emerald ash borer), turf,
gardens, and pets and have been strongly implicated as the cause of the
decline of bees in general (European Food Safety Authority 2015, p.
4211; Pisa et al. 2015, p. 69; Goulson 2013, pp. 7-8), and specifically
for rusty patched bumble bees, due to the contemporaneous introduction
of neonicotinoid use and the precipitous decline of the species (Colla
and Packer 2008, p. 10). The neonicotinoid imidacloprid became widely
used in the United States starting in the early 1990s, and clothianidin
and thiamethoxam entered the commercial market beginning in the early
2000s (Douglas and Tooker 2015, pp. 5091-5092). The use of
neonicotinoids rapidly increased as seed-applied products were
introduced in field crops, marking a shift toward large-scale,
preemptive insecticide use. If current trends continue, Douglas and
Tooker (2015, p. 5093) predict that neonicotinoid use will increase
further, through application to more soybeans and other crop species.
Most studies examining the effect of neonicotinoids on bees have
been conducted using the European honey bee (Apis mellifera) (Lundin et
al. 2015, p. 7). Bumble bees, however, may be more vulnerable to
pesticide exposure for several reasons: (1) They are more susceptible
to pesticides applied early in the year, because for one month the
entire bumble bee population depends on the success of the queens to
forage and establish new colonies; (2) bumble bees forage earlier in
the morning and later in the evening than honey bees, thus are
susceptible to pesticide applications that are done in the early
morning or evening to avoid effects to honey bees; (3) most bumble bees
have smaller colonies than honey bees, thus, a single bumble bee worker
is more important to the survival of the colony (Thompson and Hunt
1999, p. 155); (4) bumble bees nest underground, thus, are also exposed
to pesticide residues in the soil (Arena and Sgolastra 2014, p. 333);
and (5) bumble bee larvae consume large amounts of unprocessed pollen
(as opposed to honey), and, therefore, are much more exposed to
pesticide residues in the pollen (Arena and Sgolastra 2014, p. 333).
Habitat loss and degradation--The rusty patched bumble bee
historically occupied native grasslands of the Northeast and upper
Midwest; however, much of this landscape has now been lost or is
fragmented. Estimates of native grassland losses since European
settlement of North America are as high as 99.9 percent (Samson and
Knofp 1994, p. 418). Habitat loss is commonly cited as a long-term
contributor to bee declines through the 20th century, and may continue
to contribute to current declines, at least for some species (Goulson
et al. 2015, p. 2; Goulson et al. 2008; Potts et al. 2010, p. 348;
Brown and Paxton 2009, pp. 411-412). However, the rusty patched bumble
bee may not be as severely affected by habitat loss compared to habitat
specialists, such as native prairie endemics, because it is not
dependent on specific plant species, but can use a variety of floral
resources. Still, loss or degradation of habitat has been shown to
reduce both bee diversity and abundance (Potts et al. 2010, pp. 348-
349). Large monocultures do not support the plant diversity needed to
provide food resources throughout the rusty patched bumble bees' long
foraging season, and small, isolated patches of habitat may not be
sufficient to support healthy bee populations (Hatfield and LeBuhn
2007, pp. 154-156; [Ouml]ckinger and Smith 2007, pp. 55-56).
Although habitat loss has established negative effects on bumble
bees (Goulson et al. 2008; Williams and Osborne 2009, pp. 371-373),
many feel it is unlikely to be a main driver of the recent, widespread
North American bee declines (Szabo et al. 2012; p. 236; Colla and
Packer 2008, p. 1388; Cameron et al. 2011b, p. 665). However, the past
effects of habitat loss and degradation may continue to have impacts on
bumble bees that are stressed by other factors. If there is less food
available or if the bumble bees must expend more energy and time to
find food, they are less healthy overall, and, thus, less resilient to
other stressors (for example, nutritional stress may decrease the
ability to survive parasite infection (Brown et al. 2000, pp. 425-426)
or cope with pesticides (Goulson et al. 2015, p. 5)). Furthermore,
bumble bees may be more vulnerable to extinction than other animals
because their colonies have long cycles, where reproductive individuals
are primarily produced near the end of those cycles. Thus, even slight
changes in resource availability could have significant cumulative
effects on colony development and
[[Page 65329]]
productivity (Colla and Packer 2008, p. 1380).
Small population dynamics--The social organization of bees has a
large effect on their population biology and genetics (Pamilo and
Crozier 1997, entire; Chapman and Bourke 2001, entire; Zayed 2009,
entire). The rusty patched bumblebee is a eusocial bee species
(cooperative brood care, overlapping generations within a colony of
adults, and a division of labor into reproductive and non-reproductive
groups), and a population is made up of colonies, rather than
individuals. Consequently, the effective population size (number of
individuals in a population who contribute offspring to the next
generation) is much smaller than the census population size (number of
individuals in a population). Genetic effects of small population sizes
depend on the effective population size (rather than the actual size),
and in the rusty patched bumble bee the effective population sizes are
inherently small due to their eusocial structure, haplodiploidy
reproduction, and the associated ``diploid male vortex.''
Like many insect species, the rusty patched bumble bee has
haplodiploidy sex differentiation, in which haploid (having one set of
chromosomes) males are produced from unfertilized eggs and diploid
(containing two complete sets of chromosomes) females from fertilized
eggs (Zayed 2009, p. 239). When females mate with related males,
however (as is more likely to happen in small populations), half of the
females' progeny will develop into diploid males instead of females.
Having fewer females decreases the health of the colony, as males do
not contribute food resources to the colony (Ellis et al. 2006, p.
4376). Additionally, diploid males are mostly unviable, or if viable
and mate, produce unviable eggs or sterile daughters (Zayed 2009, p.
239 and references within), so those males that are produced are unable
to contribute to next year's cohort. (See Szymanski et al. 2016, pp.
17-18 for a more detailed explanation of this life-history
characteristic). This reproductive strategy (haplodiploidy) makes the
rusty patched bumble bee particularly vulnerable to the effects of a
small population size, as the species can experience a phenomenon
called a ``diploid male vortex,'' where the proportion of nonviable
males increases as abundance declines, thereby further reducing
population size. Given this, due to the size of the current
populations, some may no longer persist and others are likely already
quasi-extirpated (the level at which a population will go extinct,
although it is not yet at zero individuals) (Szymanski et al. 2016, p.
66).
Effects of climate change--Global climate change is broadly
accepted as one of the most significant risks to biodiversity
worldwide, however, specific impacts of climate change on pollinators
are not well understood. The changes in climate likely to have the
greatest effects on bumble bees include: Increased drought, increased
flooding, increased storm events, increased temperature and
precipitations, early snow melt, late frost, and increased variability
in temperatures and precipitation. These climate changes may lead to
decreased resource availability (due to mismatches in temporal and
spatial co-occurrences, such as availability of floral resources early
in the flight period), decreased availability of nesting habitat (due
to changes in rodent populations or increased flooding or storms),
increased stress from overheating (due to higher temperatures), and
increased pressures from pathogens and nonnative species, (Goulson et
al. 2015, p. 4; Goulson 2016, pers. comm.; Kerr et al. 2015, pp. 178-
179; Potts et al. 2010, p. 351; Cameron et al. 2011a, pp. 35-37;
Williams and Osborne 2009, p. 371).
Synergistic effects--It is likely that several of the above
summarized risk factors are acting synergistically or additively on the
species, and the combination of multiple stressors is likely more
harmful than a single stressor acting alone. Although the ultimate
source of the decline is debated, and despite that the relative role
and synergistic effects of the primary stressors are unknown, the acute
and widespread decline of rusty patched bumble bees is undisputable.
Beneficial factors--We are aware of only a few specific measures
for bumble bee conservation at any of the current rusty patched bumble
bee locations in the United States. In Canada, the species was listed
as endangered on Schedule 1 of the Species at Risk Act in 2012, and a
recovery strategy has been proposed (Environment and Climate Change
Canada 2016, entire). However, we are aware of only nine current
occurrences (three populations) in Canada. The rusty patched bumble bee
is listed as State endangered in Vermont and Special Concern in
Connecticut, Michigan, and Wisconsin. Of those four States, Wisconsin
is the only State with current records (18 populations). A few
organizations have or may soon start monitoring programs, such as
Bumble Bee Watch (www.bumble beewatch.org), a collaborative citizen
science effort to track North American bumble bees, and the Xerces
Society. Also, the International Union of Concerned Scientists
Conservation Breeding Specialist Group has developed general
conservation guidelines for bumble bees (Hatfield et al. 2014b, pp. 11-
16; Cameron et al. 2011a, entire). There is an increased awareness on
pollinators, in general, and thus efforts to conserve pollinators may
have a fortuitous effect on the rusty patched bumble bee. For example,
planting appropriate flowers may contribute to pollinator conservation;
however, there is a need to develop regionally appropriate, bumble bee-
specific recommendations based on evidence of use (Goulson 2015, p. 6).
In summary, the magnitude of population losses and range
contraction to date have greatly reduced the rusty patched bumble bee's
ability to adapt to changing environmental conditions and to guard
against further losses of adaptive diversity and potential extinction
due to catastrophic events. In reality, the few populations persisting
and the limited distribution of these populations have substantially
reduced the ability of the rusty patched bumble bee to withstand
environmental variation, catastrophic events, and changes in physical
and biological conditions. Coupled with the increased risk of
extirpation due to the interaction of reduced population size and its
haplodiploidy reproductive strategy, the rusty patched bumble bee may
lack the resiliency required to sustain populations into the future,
even without further exposure to stressors.
12-Month Petition Finding on the Rusty Patched Bumble Bee
As required by the Act, we considered the five factors in assessing
whether the rusty patched bumblebee is an endangered species, as cited
in the petition, throughout all of its range. We examined the best
scientific and commercial information available regarding the past,
present, and future threats faced by the bumble bee. We reviewed the
petition, information available in our files, and other available
published and unpublished information, and we consulted with recognized
bumble bee experts and other Federal and State agencies. We identify
the threats to the rusty patched bumble bee to be attributable to
habitat loss and degradation (Factor A), impacts of pathogens (Factor
C), impacts of pesticides (Factor E), the effects of small population
size (Factor E), and effects of climate change (Factor E). On the basis
of the best scientific and commercial information available, we find
that the petitioned action to list the rusty patched bumble bee as an
endangered
[[Page 65330]]
species is warranted. A determination on the status of the species as
an endangered or threatened species is presented below in the proposed
listing determination.
Determination
Section 4 of the Act (16 U.S.C. 1533), and its implementing
regulations at 50 CFR part 424, set forth the procedures for adding
species to the Federal Lists of Endangered and Threatened Wildlife and
Plants. Under section 4(a)(1) of the Act, we may list a species based
on (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. Listing actions may be warranted based on any of
the above threat factors, singly or in combination.
We have carefully assessed the best scientific and commercial
information available regarding the past, present, and future threats
to the rusty patched bumble bee. Habitat loss and degradation from
residential and commercial development and agricultural conversion
occurred rangewide and resulted in fragmentation and isolation of the
species from formerly contiguous native habitat. Habitat loss and
degradation has resulted in the loss of the diverse floral resources
needed throughout the rusty patched bumble bee's long feeding season,
as well as loss of appropriate nesting and overwintering sites.
Although much of the habitat conversion occurred in the past, the
dramatic reduction and fragmentation of habitat has persistent and
ongoing effects on the viability of populations; furthermore,
conversion of native habitats to agriculture (i.e., monocultures) or
other uses is still occurring today (Factor A).
The species' range has been reduced by 92 percent, and its current
distribution is limited to just one to a few populations in each of 12
States and Ontario. Ninety-three percent of the 69 current populations
are documented by 5 or fewer individuals, and only 2 populations are
documented by more than 10 individuals. Drought frequency and increased
duration of high temperatures are likely to increase due to climate
change, further restricting floral resources, reducing foraging times,
and fragmenting or eliminating populations (Factor E). Fungi such as N.
bombi, parasites such as Crithidia bombi and Apicystis bombi, deformed
wing virus, acute bee paralysis, and bacteria are all suspected causes
of decline for the rusty patched bumble bee (Factor C).
Pesticide use, including the use of many insecticides that have
known lethal and sublethal effects to bumble bees, is occurring at
increasing levels rangewide (Factor E). Similarly, herbicide use occurs
rangewide and can reduce available floral resources (Factor A).
Additionally, the rusty patched bumble bee is not able to naturally
recolonize unoccupied areas that are not connected by suitable
dispersal habitat (Factors A and E).
The rusty patched bumble bee's reproductive strategy makes it
particularly vulnerable to the effects of small population size, and
the species can experience a ``diploid male vortex,'' where the number
of nonviable males increases as abundance declines, thereby further
reducing population size (Factor E). There is virtually no redundancy
of populations within each occupied ecoregion, further increasing the
risk of loss of representation of existing genetic lineages and,
ultimately, extinction.
These threats have already resulted in the extirpation of the rusty
patched bumble bee throughout an estimated 92 percent of its range, and
these threats are likely to continue or increase in severity. Although
the relative contribution of pesticides, pathogens, loss of floral
resources, and other threats to the species' past and continued decline
is not known, the prevailing data indicate that threats are acting
synergistically and additively and that the combination of multiple
threats is likely more harmful than a single threat acting alone. These
threats are occurring rangewide, are expected to continue or increase
in the future, and are significant because they further reduce the
already limited distribution and decrease the resiliency of the rusty
patched bumble bee within those limited areas.
Existing regulatory mechanisms vary across the species' range, and
although the rusty patched bumble bee is listed as State endangered in
Vermont (which prohibits taking, possessing, or transporting), as
special concern (no legal protection) in Connecticut, Michigan, and
Wisconsin, and is protected under Canada's Species At Risk Act, these
mechanisms do not currently ameliorate threats to the rusty patched
bumble bee.
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 find that the rusty patched bumble
bee is presently in danger of extinction throughout its entire range.
Relative to its historical (pre-2000s) condition, the abundance of
rusty patched bumble bees has declined precipitously over a short
period of time. Only nine percent of the locations where it was
historically found are currently occupied, and the abundance of the
species relative to other Bombus species has declined from eight
percent to one percent. The current spatial extent of occurrence is
eight percent of its historical extent.
Further adding to the species' imperilment, its reproductive
strategy (haplodiploidy) renders bumble bees particularly sensitive to
loss of genetic diversity, which is further exacerbated by decreasing
population size (for example, diploid male vortex). The small number of
persisting colonies continues to be affected by high-severity
stressors, including pathogens, pesticides, habitat loss and
degradation, effects of climate change, and small population dynamics
throughout all of the species' range. These stressors are acting
synergistically and additively on the species, and the combination of
multiple stressors is more harmful than a single stressor acting alone.
Due to the above factors, the species does not have the adaptive
capacity in its current state to withstand physical and biological
changes in the environment presently or into the future, and optimistic
modeling suggests that all but one of the ecoregions are predicted to
be extirpated within 5 years (Szymanski et al. 2016, Table 7.3).
In conclusion, the species' overall range has been considerably
reduced and the remaining populations are under threat from a variety
of factors acting in combination to significantly reduce the overall
viability of the species. The risk of extinction is currently high
because there are a small number of remaining populations, most of
which are extremely small in size (all but 2 have 10 or fewer
individuals), in a severely reduced range. Therefore, on the basis of
the best available scientific and commercial information, we propose
listing the rusty patched bumble bee as an endangered species in
accordance with sections 3(6) and 4(a)(1) of the Act. We find that a
threatened species status is not appropriate for the rusty patched
bumble bee because (1) given its current condition, the species lacks
the ability to withstand physical and biological changes in the
environment presently and into the future; (2) based on the prediction
that all but one ecoregion
[[Page 65331]]
will be extinct within 5 years, the species presently has a high
probability of extinction based on its current status; and (3) even
were the current stressors to be reduced or eliminated, the species is
at high risk of extinction based on small population size effects
alone.
Under the Act and our implementing regulations, a species may
warrant listing if it is endangered or threatened throughout all or a
significant portion of its range. Because we have determined that the
rusty patched bumble bee is endangered throughout all of its range, no
portion of its range can be ``significant'' for purposes of the
definitions of ``endangered species'' and ``threatened species.'' See
the Final Policy on Interpretation of the Phrase ``Significant Portion
of Its Range'' in the Endangered Species Act's Definitions of
``Endangered Species'' and ``Threatened Species'' (79 FR 37577; July 1,
2014).
Critical Habitat
Section 4(a)(3) of the Act, as amended, and implementing
regulations in title 50 of the Code of Federal Regulations (50 CFR
424.12), require that, to the maximum extent prudent and determinable,
we designate critical habitat at the time the species is determined to
be an endangered or threatened species. Critical habitat is defined in
section 3 of the Act as:
(1) The specific areas within the geographical area occupied by the
species, at the time it is listed in accordance with the Act, on which
are found those physical or biological features
(a) Essential to the conservation of the species, and
(b) Which may require special management considerations or
protection; and
(2) Specific areas outside the geographical area occupied by the
species at the time it is listed, upon a determination that such areas
are essential for the conservation of the species.
Our regulations at 50 CFR 424.02 define the geographical area
occupied by the species as: An area that may generally be delineated
around species' occurrences, as determined by the Secretary (i.e.,
range). Such areas may include those areas used throughout all or part
of the species' life cycle, even if not used on a regular basis (for
example, migratory corridors, seasonal habitats, and habitats used
periodically, but not solely by vagrant individuals).
Conservation, as defined under section 3 of the Act, means to use,
and the use of, all methods and procedures that are necessary to bring
an endangered or threatened species to the point at which the measures
provided pursuant to the Act are no longer necessary. Such methods and
procedures include, but are not limited to, all activities associated
with scientific resources management such as research, census, law
enforcement, habitat acquisition and maintenance, propagation, live
trapping, and transplantation, and, in the extraordinary case where
population pressures within a given ecosystem cannot be otherwise
relieved, may include regulated taking.
Critical habitat receives protection under section 7 of the Act
through the requirement that Federal agencies ensure, in consultation
with the Service, that any action they authorize, fund, or carry out is
not likely to result in the destruction or adverse modification of
critical habitat. The designation of critical habitat does not affect
land ownership or establish a refuge, wilderness, reserve, preserve, or
other conservation area. Critical habitat designation does not allow
the government or public to access private lands, nor does it require
implementation of restoration, recovery, or enhancement measures by
non-Federal landowners. Where a landowner requests Federal agency
funding or authorization for an action that may affect a listed species
or critical habitat, the Federal agency would be required to consult
under section 7(a)(2) of the Act, but even if consultation leads to a
finding that the action would likely cause destruction or adverse
modification of critical habitat, the resulting obligation of the
Federal action agency and the landowner is not to restore or recover
the species, but rather to implement reasonable and prudent
alternatives to avoid destruction or adverse modification of critical
habitat.
Under the first prong of the Act's definition of critical habitat,
areas within the geographical area occupied by the species at the time
it was listed are included in a critical habitat designation if they
contain physical or biological features (1) that are essential to the
conservation of the species and (2) that may require special management
considerations or protection. For these areas, critical habitat
designations identify, to the extent known using the best scientific
and commercial data available, those physical or biological features
that are essential to the conservation of the species (such as space,
food, cover, and protected habitat). In identifying those physical or
biological features, we focus on the specific features that support the
life-history needs of the species, including but not limited to, water
characteristics, soil type, geological features, prey, vegetation,
symbiotic species, or other features. A feature may be a single habitat
characteristic, or a more complex combination of habitat
characteristics. Features may include habitat characteristics that
support ephemeral or dynamic habitat conditions. Features may also be
expressed in terms relating to principles of conservation biology, such
as patch size, distribution distances, and connectivity. Under the
second prong of the Act's definition of critical habitat, we can
designate critical habitat in areas outside the geographical area
occupied by the species at the time it is listed if we determine that
such areas are essential for the conservation of the species.
Section 4 of the Act requires that we designate critical habitat on
the basis of the best scientific data available. Further, our Policy on
Information Standards Under the Endangered Species Act (published in
the Federal Register on July 1, 1994 (59 FR 34271)), the Information
Quality Act (section 515 of the Treasury and General Government
Appropriations Act for Fiscal Year 2001 (Pub. L. 106-554; H.R. 5658)),
and our associated Information Quality Guidelines, provide criteria,
establish procedures, and provide guidance to ensure that our decisions
are based on the best scientific data available. For example, they
require our biologists, to the extent consistent with the Act and with
the use of the best scientific data available, to use primary and
original sources of information as the basis for recommendations to
designate critical habitat.
Our regulations (50 CFR 424.12(a)(1)) state that the designation of
critical habitat is not prudent when any of the following situations
exist: (i) The species is threatened by taking or other human activity,
and identification of critical habitat can be expected to increase the
degree of threat to the species, or (ii) such designation of critical
habitat would not be beneficial to the species. The regulations also
provide that, in determining whether a designation of critical habitat
would not be beneficial to the species, the factors the Services may
consider include but are not limited to: Whether the present or
threatened destruction, modification, or curtailment of a species'
habitat or range is not a threat to the species, or whether any areas
meet the definition of ``critical habitat'' (50 CFR 424.12(a)(1)(ii)).
We do not know of any imminent threat of take attributed to
collection or vandalism for the rusty patched bumble bee. The available
information does not
[[Page 65332]]
indicate that identification and mapping of critical habitat is likely
to initiate any threat of collection or vandalism for the bee.
Therefore, in the absence of finding that the designation of critical
habitat would increase threats to the species, if there are benefits to
the species from a critical habitat designation, a finding that
designation is prudent is warranted.
The potential benefits of designation may include: (1) Triggering
consultation under section 7 of the Act, in new areas for actions in
which there may be a Federal nexus where it would not otherwise occur
because, for example, it is unoccupied; (2) focusing conservation
activities on the most essential features and areas; (3) providing
educational benefits to State or county governments or private
entities; and (4) preventing people from causing inadvertent harm to
the protected species. Because designation of critical habitat will not
likely increase the degree of threat to the species and may provide
some measure of benefit, designation of critical habitat may be prudent
for the rusty patched bumble bee.
Our regulations (50 CFR 424.12(a)(2)) further state that critical
habitat is not determinable when one or both of the following
situations exists: (1) Information sufficient to perform required
analysis of the impacts of the designation is lacking; or (2) the
biological needs of the species are not sufficiently well known to
permit identification of an area as critical habitat.
Delineation of critical habitat requires, within the geographical
area occupied by the species, identification of the physical or
biological features essential to the species' conservation. Information
regarding the rusty patched bumble bee life functions is complex, and
complete data are lacking for most of them. We require additional time
to analyze the best available scientific data in order to identify
specific areas appropriate for critical habitat designation and to
prepare and process a proposed rule. Accordingly, we find designation
of critical habitat for these species in accordance with section
4(3)(A) of the Act to be ``not determinable'' at this time.
Available Conservation Measures
Conservation measures provided to species listed as endangered or
threatened species under the Act include recognition, recovery actions,
requirements for Federal protection, and prohibitions against certain
practices. Recognition through listing results in public awareness, and
conservation by Federal, State, Tribal, and local agencies, private
organizations, and individuals. The Act encourages cooperation with the
States and other countries and calls for recovery actions to be carried
out for listed species. The protection required by Federal agencies and
the prohibitions against certain activities are discussed, in part,
below.
The primary purpose of the Act is the conservation of endangered
and threatened species and the ecosystems upon which they depend. The
ultimate goal of such conservation efforts is the recovery of these
listed species, so that they no longer need the protective measures of
the Act. Subsection 4(f) of the Act calls for the Service to develop
and implement recovery plans for the conservation of endangered and
threatened species. The recovery planning process involves the
identification of actions that are necessary to address the threats to
its survival and recovery. The goal of this process is to restore
listed species to a point where they are secure, self-sustaining, and
functioning components of their ecosystems.
Recovery planning includes the development of a draft and final
recovery plan. Revisions of the plan may be done to address continuing
or new threats to the species, as new substantive information becomes
available. The recovery plan also identifies recovery criteria for
review of when a species may be ready for downlisting or delisting, and
methods for monitoring recovery progress. Recovery plans also establish
a framework for agencies to coordinate their recovery efforts and
provide estimates of the cost of implementing recovery tasks. When
completed, the draft recovery plan and the final recovery plan will be
available on our Web site (https://www.fws.gov/endangered), or from our
Twin Cities Ecological Service Field Office (see FOR FURTHER
INFORMATION CONTACT).
Implementation of recovery actions generally requires the
participation of a broad range of partners, including other Federal
agencies, States, Tribes, nongovernmental organizations, businesses,
and private landowners. Examples of recovery actions include habitat
restoration (for example, restoration of native vegetation), research,
captive propagation and reintroduction, and outreach and education. The
recovery of many listed species cannot be accomplished solely on
Federal lands because their range may occur primarily or solely on non-
Federal lands. To achieve recovery of these species requires
cooperative conservation efforts on private, State, and Tribal lands.
If this species is listed, funding for recovery actions will be
available from a variety of sources, including Federal budgets, State
programs, and cost-share grants for non-Federal landowners, the
academic community, and nongovernmental organizations. In addition,
pursuant to section 6 of the Act, the States of Connecticut, Delaware,
Georgia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland,
Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New
Jersey, New York, North Carolina, North Dakota, Ohio, Pennsylvania,
Rhode Island, South Carolina, South Dakota, Tennessee, Vermont,
Virginia, West Virginia, and Wisconsin would be eligible for Federal
funds to implement management actions that promote the protection or
recovery of the rusty patched bumble bee. Information on our grant
programs that are available to aid species recovery can be found at:
https://www.fws.gov/grants.
Although the rusty patched bumble bee is only proposed for listing
under the Act at this time, please let us know if you are interested in
participating in conservation efforts for this species. Additionally,
we invite you to submit any new information on this species whenever it
becomes available and any information you may have for recovery
planning purposes (see FOR FURTHER INFORMATION CONTACT).
Section 7(a) of the Act requires Federal agencies to evaluate their
actions with respect to any species that is proposed or listed as an
endangered or threatened species and with respect to its critical
habitat, if any is proposed or designated. Regulations implementing
this interagency cooperation provision of the Act are codified at 50
CFR part 402. Section 7(a)(4) of the Act requires Federal agencies to
confer with the Service on any action that is likely to jeopardize the
continued existence of a species proposed for listing or result in
destruction or adverse modification of proposed critical habitat. If a
species is listed subsequently, section 7(a)(2) of the Act requires
Federal agencies to ensure that activities they authorize, fund, or
carry out are not likely to jeopardize the continued existence of the
species or destroy or adversely modify its critical habitat. If a
Federal action may affect a listed species or its critical habitat, the
responsible Federal agency must enter into consultation with the
Service.
Federal agency actions within the species' habitat that may require
conference or consultation or both as described in the preceding
paragraph include management and any other landscape-altering
activities on Federal lands, for example, lands administered
[[Page 65333]]
by the National Park Service, U.S. Fish and Wildlife Service, and U.S.
Forest Service.
The Act and its implementing regulations set forth a series of
general prohibitions and exceptions that apply to endangered wildlife.
The prohibitions of section 9(a)(1) of the Act, codified at 50 CFR
17.21, make it illegal for any person subject to the jurisdiction of
the United States to take (which includes harass, harm, pursue, hunt,
shoot, wound, kill, trap, capture, or collect; or to attempt any of
these) endangered wildlife within the United States or on the high
seas. In addition, it is unlawful to import; export; deliver, receive,
carry, transport, or ship in interstate or foreign commerce in the
course of commercial activity; or sell or offer for sale in interstate
or foreign commerce any listed species. It is also illegal to possess,
sell, deliver, carry, transport, or ship any such wildlife that has
been taken illegally. Certain exceptions apply to employees of the
Service, the National Marine Fisheries Service, other Federal land
management agencies, and State conservation agencies.
We may issue permits to carry out otherwise prohibited activities
involving endangered wildlife under certain circumstances. Regulations
governing permits are codified at 50 CFR 17.22. With regard to
endangered wildlife, a permit may be issued for the following purposes:
For scientific purposes, to enhance the propagation or survival of the
species, and for incidental take in connection with otherwise lawful
activities. There are also certain statutory exemptions from the
prohibitions, which are found in sections 9 and 10 of the Act.
It is our policy, as published in the Federal Register on July 1,
1994 (59 FR 34272), to identify to the maximum extent practicable at
the time a species is listed, those activities that would or would not
constitute a violation of section 9 of the Act. The intent of this
policy is to increase public awareness of the effect of a proposed
listing on proposed and ongoing activities within the range of the
species proposed for listing.
Based on the best available information, the following activities
may potentially result in a violation of section 9 of the Act; this
list is not comprehensive:
(1) Unauthorized handling or collecting of the species;
(2) The unauthorized release of biological control agents that
attack any life stage of the rusty patched bumble bee, including the
unauthorized use of herbicides, pesticides, or other chemicals in
habitats in which the rusty patched bumble bee is known to occur;
(3) Unauthorized release of nonnative species or native species
that carry pathogens, diseases, or fungi that are known or suspected to
adversely affect rusty patched bumble bee where the species is known to
occur;
(4) Unauthorized modification, removal, or destruction of the
habitat (including vegetation and soils) in which the rusty patched
bumble bee is known to occur; and
(5) Unauthorized discharge of chemicals or fill material into any
wetlands in which the rusty patched bumble bee is known to occur.
Questions regarding whether specific activities would constitute a
violation of section 9 of the Act should be directed to the Twin Cities
Ecological Services Field Office (see FOR FURTHER INFORMATION CONTACT).
Required Determinations
Clarity of the Rule
We are required by Executive Orders 12866 and 12988 and by the
Presidential Memorandum of June 1, 1998, to write all rules in plain
language. This means that each rule we publish must:
(1) Be logically organized;
(2) Use the active voice to address readers directly;
(3) Use clear language rather than jargon;
(4) Be divided into short sections and sentences; and
(5) Use lists and tables wherever possible.
If you feel that we have not met these requirements, send us
comments by one of the methods listed in ADDRESSES. To better help us
revise the rule, your comments should be as specific as possible. For
example, you should tell us the numbers of the sections or paragraphs
that are unclearly written, which sections or sentences are too long,
the sections where you feel lists or tables would be useful, etc.
National Environmental Policy Act (42 U.S.C. 4321 et seq.)
We have determined that environmental assessments and environmental
impact statements, as defined under the authority of the National
Environmental Policy Act (NEPA; 42 U.S.C. 4321 et seq.), need not be
prepared in connection with listing a species as an endangered or
threatened species under the Endangered Species Act. We published a
notice outlining our reasons for this determination in the Federal
Register on October 25, 1983 (48 FR 49244).
References Cited
A complete list of references cited in this rulemaking is available
on the Internet at https://www.regulations.gov and upon request from the
Twin Cities Ecological Services Field Office (see FOR FURTHER
INFORMATION CONTACT).
Authors
The primary authors of this proposed rule are the staff members of
the Twin Cities Ecological Services Field Office and the Region 3
Regional Office.
List of Subjects in 50 CFR Part 17
Endangered and threatened species, Exports, Imports, Reporting and
recordkeeping requirements, Transportation.
Proposed Regulation Promulgation
Accordingly, we propose to amend part 17, subchapter B of chapter
I, title 50 of the Code of Federal Regulations, as set forth below:
PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS
0
1. The authority citation for part 17 continues to read as follows:
Authority: 16 U.S.C. 1361-1407; 1531-1544; 4201-4245; unless
otherwise noted.
0
2. In Sec. 17.11(h) add an entry for ``Bumble bee, rusty patched'' to
the List of Endangered and Threatened Wildlife in alphabetical order
under INSECTS to read as follows:
Sec. 17.11 Endangered and threatened wildlife.
* * * * *
(h) * * *
[[Page 65334]]
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Listing citations and
Common name Scientific name Where listed Status applicable rules
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Insects
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Bumble bee, rusty patched....... Bombus affinis..... Wherever found.... E [Federal Register
citation when
published as a final
rule].
* * * * * * *
----------------------------------------------------------------------------------------------------------------
Dated: September 12, 2016.
Stephen Guertin,
Acting Director, U.S. Fish and Wildlife Service.
[FR Doc. 2016-22799 Filed 9-21-16; 8:45 am]
BILLING CODE 4333-15-P