Endangered and Threatened Wildlife and Plants; Listing the British Columbia Distinct Population Segment of the Queen Charlotte Goshawk Under the Endangered Species Act, 56757-56770 [E9-26154]
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Federal Register / Vol. 74, No. 211 / Tuesday, November 3, 2009 / Proposed Rules
Capitol Street, NW., Room 1046,
Washington, DC 20573–0001, (202) 523–
5725, E-mail: secretary@fmc.gov.
FOR FURTHER INFORMATION CONTACT:
Peter J. King, General Counsel, Federal
Maritime Commission, 800 North
Capitol Street, NW., Room 1018,
Washington, DC 20573–0001, (202) 523–
5740, E-mail: generalcounsel@fmc.gov.
SUPPLEMENTARY INFORMATION:
By Notice of Proposed Rulemaking
published October 31, 2002, 67 FR
66352, the Commission proposed
amendments to its passenger vessel
regulations at 46 CFR Part 540. These
regulations implement the statutory
requirement to provide proof of
passenger vessel financial responsibility
under Sections 2 and 3 of Public Law
89–777, now recodified at 46 U.S.C.
44101–44103. The proposed
amendments would have: eliminated
the current ceiling on required
performance coverage; adjusted the
amount of coverage required by
providing for consideration of the
obligations of credit card issuers;
provided for the use of Alternative
Dispute Resolution (ADR), including the
Commission’s ADR program, in
resolving passenger performance claims;
revised the application form, and made
other technical changes. By reason of
the scope of the changes proposed, the
Commission sought to revise and
republish in their entirety the
Commission’s passenger vessel operator
(PVO) rules at 46 CFR Part 540.
The Commission’s proposed rule
elicited a broad range of comments from
many sectors of the cruise industry.
Comments were received from cruise
lines, travel agents, individual ports
servicing the cruise industry, state ports
councils; and from the surety industry,
banking industry and the credit card
companies as well as trade associations
representing these sectors of the
industry. Comments were submitted
both to the Commission and also to the
Office of Management and Budget. In
recognition of broad public interest in
the rulemaking, the Commission
initially extended the comment period
for receiving written submissions and
ultimately convened a public hearing to
accept oral comments. Comments and
status updates continued to be received
by the Commission through April 2004.
Written and oral comments revealed
wide-spread differences of opinion on
both questions of fact and law with
respect to the proposed rule, with
particular aspects supported (or
opposed) by one trade sector or another.
More than 5 years have now passed
since the Commission last received
comments on the proposed rule. The
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record in this proceeding has effectively
become stale, failing to account for
changes in the industry that include, but
are not limited to, the recent economic
downturn that has greatly impacted
most segments of the domestic and
world economies. The Commission has
determined that the record amassed in
prior years is no longer legally sufficient
to sustain contemporary efforts to either
adopt or propose new alternatives to the
Commission’s financial responsibility
requirements for PVOs.
For these reasons, the Commission
has decided to terminate the Notice of
Proposed Rulemaking published on
October 31, 2002, 67 FR 66352. Should
the Commission decide to move forward
with revising its passenger vessel
regulations, the industry will be
provided further opportunity to submit
comments.
By the Commission.
Karen V. Gregory,
Secretary.
[FR Doc. E9–26402 Filed 11–2–09; 8:45 am]
BILLING CODE P
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[FWS-R7-ES-2009-0049]
[MO 9221050083-B2]
[RIN 1018-AW32]
Endangered and Threatened Wildlife
and Plants; Listing the British
Columbia Distinct Population Segment
of the Queen Charlotte Goshawk Under
the Endangered Species Act
AGENCY: Fish and Wildlife Service,
Interior.
ACTION: Proposed rule.
SUMMARY: We, the U.S. Fish and
Wildlife Service (Service), propose to
list the British Columbia distinct
population segment (DPS) of the Queen
Charlotte goshawk (Accipiter gentilis
laingi) as threatened, except on the
Queen Charlotte Islands (a significant
portion of the DPS’s range), where we
propose to list the goshawk as
endangered, under the Endangered
Species Act of 1973, as amended (Act).
This proposal, if made final, would
extend the Act’s protection to this
subspecies in British Columbia, Canada,
on Vancouver Island and the
surrounding smaller islands, the Queen
Charlotte Islands, and the coastal
mainland west of the Coast Mountains.
The Service seeks data and comments
from the public on this proposal.
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56757
DATES: We will consider comments
received on or before January 4, 2010.
We must receive requests for public
hearings, in writing, at the address
shown in the ADDRESSES section by
December 18, 2009.
ADDRESSES: You may submit comments
by one of the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
• U.S. mail or hand-delivery: Public
Comments Processing, Attn: FWS-R7ES-2009-0049; Division of Policy and
Directives Management; U.S. Fish and
Wildlife Service; 4401 N. Fairfax Drive,
Suite 222; Arlington, VA 22203.
We will post all comments on https://
www.regulations.gov. This generally
means that we will post any personal
information you provide us (see the
Public Comments section below for
more information).
FOR FURTHER INFORMATION CONTACT:
Steve Brockmann, Juneau Fish and
Wildlife Field Office, 3000 Vintage
Blvd. Suite 201, Juneau, AK 99801;
telephone (907) 780-1181; fax (907) 5867154.
SUPPLEMENTARY INFORMATION:
Public Comments
We intend that any final action
resulting from this proposal will be
based on the best scientific and
commercial data available and be as
accurate and as effective as possible.
Therefore, we request comments or
suggestions from other government
agencies, the scientific community,
industry, or any other interested party
concerning this proposed rule. We
particularly seek comments regarding:
(1) Biological information, population
status, commercial trade, or other
relevant data concerning any threat (or
lack thereof) to this subspecies,
(2) The factors that are the basis for
making a listing determination for a
species under section 4(a) of the
Endangered Species Act of 1973, as
amended (Act) (16 U.S.C. 1531 et seq.),
which are:
(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.
(3) The appropriate conservation
status for the British Columbia DPS of
the Queen Charlotte goshawk, and
(4) Specific information on the areas
identified as significant portions of the
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range in this proposed rule, including
threats.
You may submit your comments and
materials concerning this proposed rule
by one of the methods listed in the
ADDRESSES section. We will not
consider comments sent by e-mail or fax
or to an address not listed in the
ADDRESSES section.
If you submit a comment via https://
www.regulations.gov, your entire
comment—including any personal
identifying information—will be posted
on the website. If you submit a
hardcopy comment 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 comments 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, 3000 Vintage Blvd, Suite 201,
Juneau, AK 99801.
Final promulgation of the regulations
concerning the listing of this subspecies
will take into consideration all
comments and additional information
that we receive, and may lead to a final
regulation that differs from this
proposal.
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Queen Charlotte Goshawk Biology
The Queen Charlotte goshawk is a
comparatively small, dark subspecies of
northern goshawk (Accipiter gentilis)
that nests and forages in the temperate,
rainforest-dominated archipelagos and
coastal mainland of southeast Alaska
and British Columbia. Natural history
and threats to the subspecies are
described in detail in our status review
(USFWS 2007; USFWS 2008) and
evaluated in our most recent finding,
published in the Federal Register on
November 8, 2007 (72 FR 63123).
Below, we briefly summarize key
aspects of the Queen Charlotte
goshawk’s biology.
Goshawks typically nest and forage in
old-growth forest, but use mature
second-growth (previously harvested,
regenerating stands that have developed
adequate structure) where old-growth
forest is limited (Titus et al. 1994, pp.
19-24; Iverson et al. 1996, pp. 27-40;
McClaren and Pendergast 2003, pp. 4-6).
Non-forested land, recently clear-cut
areas, and young second-growth stands
are avoided (Iverson et al. 1996, pp. 2740).
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Forest regeneration following timber
harvest usually results in dense secondgrowth stands that may support
populations of some prey species, but
goshawks avoid these habitats,
presumably because they are too dense
for the hawks to effectively hunt
(DeStefano and McCloskey 1997, p. 38;
Beier and Drennan 1997, p. 570;
Greenwald et al. 2005, pp. 125-126;
USFWS 2007, pp. 62-67).
As second-growth stands approach
economic maturity, the forest structure
develops adequately to allow goshawks
to forage below the canopy. Second
growth reaches economic maturity
when its growth rate begins to slow.
Trees of this age typically have not
reached maximum size. Canopies of
these stands are usually uniformly
dense unless the stand was harvested in
a multi-age system or has been thinned.
We refer to such stands as ‘‘mature’’, or
‘‘mature second growth.’’ In this
document, ‘‘young second growth’’
refers to second growth that has not yet
reached maturity. Mature forest with
structure suitable for goshawk nesting
and foraging may develop as early as 45
to 50 years following harvest on the
most productive sites in the southern
portion of the Queen Charlotte
goshawk’s range (Doyle 2004, pp. 27-28;
McClaren 2003, p. 19), but may take
over 100 years on less productive sites
(Iverson et al. 1996, p. 71). These stands
are typically harvested within a decade
or two of reaching economic maturity, if
they are in an area currently open to
logging. On lands managed for
sustained-yield timber harvest,
approximately 10 to 20 percent of the
second growth is typically mature and
suitable as goshawk habitat, although
this percentage varies with harvest
history, stand treatments, and current
demand for timber (Daniel et al. 1979,
pp. 304-344). Unharvested retention
areas (e.g., stream buffers) provide oldgrowth habitat in addition to any mature
second growth in harvested landscapes.
‘‘Old growth’’ or ‘‘old forest’’ refers to
a structural stage of forest characterized
by several age classes of trees, including
dominant trees that have reached the
maximum size typical for the site,
accumulations of dead, dying, and
decaying trees and logs, and younger
trees growing in gaps between the
dominant trees. Such stands are
typically over 250 years old within the
range of the Queen Charlotte goshawk,
and have not been previously harvested.
Goshawks hunt primarily by flying
between perches and launching attacks
from those perches. They take a variety
of medium-sized prey, depending
largely on local availability (Squires and
Reynolds 1997, p. 1), which varies
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markedly among the islands in the
Queen Charlotte goshawk’s range. Red
squirrels (Tamiasciurus hudsonicus)
and sooty grouse (Dendragopus
fuliginosis) (formerly blue grouse, D.
obscurus) form the bulk of the diet in
many locations, with thrushes, jays,
crows, ptarmigan, and woodpeckers
frequently taken as well (Ethier 1999,
pp. 21-22 and 32-47; Lewis 2001, pp.
81-107; Lewis et al. 2004, pp. 378-382;
Doyle 2005, pp. 30-31). During winter,
many avian prey species migrate from
the region, reducing the variety and
abundance of prey available (Ethier
1999, p. 22; MacDonald and Cook 1999,
pp. 23-24; Nagorsen 2002, pp. 92-97;
Doyle 2005, p. 31). Winter diets of the
Queen Charlotte goshawk are largely
unknown.
Prey availability is defined by prey
abundance and suitability of habitat for
successful hunting. Commercial logging
can reduce both. Mature and old-growth
forest habitat provides productive
habitat for prey species in a setting
where goshawks can effectively hunt.
Timber harvest typically results in prey
population declines because few
potential prey species within the range
of the Queen Charlotte goshawk are
adapted to open and edge habitats
(Iverson et al. 1996, pp. 59-61; Doyle
and Mahon 2003, p. 39; USFWS 2007,
pp. 42-45). Where those logged areas
grow into dense second-growth stands,
hunting is impaired because these
stands do not offer adequate flight space
(DeStefano and McCloskey 1997, p. 38;
Beier and Drennan 1997, p. 570;
Greenwald et al. 2005, pp. 125-126;
USFWS 2007, pp. 62-67).
Queen Charlotte goshawk nests are
typically located in large trees within
mature or old-growth forest stands that
have greater volume and canopy cover
than the surrounding forest (Iverson et
al. 1996, pp. 47-56; Flatten et al. 2002,
pp. 2-3; McClaren 2003, p. 12; McClaren
and Pendergast 2003, pp. 4-6; Doyle
2005, pp. 12-14; USFWS 2007, pp. 2630). Nesting pairs appear to be
territorial, with nests spaced somewhat
uniformly across available habitat.
Nesting density, as measured by mean
distance between adjacent nesting areas,
appears to vary with habitat quality
(primarily prey availability). Queen
Charlotte goshawks appear to nest at
lower densities than northern goshawks
studied elsewhere (McClaren 2003,
pp.13 and 21; Doyle 2005, p. 15;
USFWS 2007, pp. 45-47).
The best available information
suggests that viable nesting territories
(which are approximately 24,700 acres
(10,000 hectares) each) contain at least
40 percent mature and old-growth forest
(Doyle 2005, p. 14; USFWS 2007, pp.
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75-78). However, goshawks may nest in
areas with lower proportions of mature
and old-growth forest where prey
adapted to more open habitats is
abundant (Doyle 2006, pp. 135-140;
Iverson et al. 1996, p. 55; USFWS 2007,
p. 36).
Individual nests are frequently not
used in subsequent years as pairs often
move to an alternate nest. Most alternate
nests are clustered within a few
hundred acres (200 to 500 hectares)
(McClaren 2003, p. 13; Flatten et al.
2001, pp. 9-11), although females have
been documented leaving the nesting
area altogether and nesting in
subsequent years with a new mate in a
different territory up to 95 miles (152
kilometers) away. Males have been
documented moving up to 2 miles (3.2
kilometers) between subsequent nests,
but apparently remain in their nesting
area in subsequent years (Flatten et al.
2001, pp. 9-10).
Nest occupancy (percentage of nest
areas with adult goshawks present) and
nesting activity (percentage of nest areas
with eggs laid) appear to vary with
habitat suitability, prey availability, and
weather, with greater occupancy or
activity in areas with less fragmented
forest habitat and in years with higher
prey abundance and warmer, drier
weather (Desimone and DeStefano 2005,
pp. 317-318; Doyle and Smith 1994, p.
126; Ethier 1999, pp. 31 and 36;
Fairhurst and Bechard 2005, pp. 231232; Finn et al. 1998, p. 1; Finn et al.
2002, pp. 270-271; McClaren 2003, pp.
11 and 16; Patla 1997, pp. 34-35; Patla
2005, pp. 328-330; McClaren et al. 2002,
p. 350; Salafsky et al. 2005, pp. 242244).
When prey availability and weather
are suitable and nesting is initiated, nest
success (percent of active nests that
fledge at least one young) is typically
high (87 percent rangewide, 1991 to
2004), as is productivity (1.6 to 2.0
fledglings per active nest) (USFWS
2007, p. 54). Fledglings typically spend
about 6 weeks within several hundred
yards (several hundred meters) of their
nests learning flight and hunting skills
before dispersing (McClaren et al. 2005,
p. 257). Retention of mature forest
structure near the nest is believed to be
important for supporting this
developmental stage (Reynolds et al.
1992, pp. 15-16; Kennedy et al. 1994, p.
80; Ethier 1999, p. 31; Finn et al. 2002,
pp. 270-271; McClaren 2003, pp. 11 and
16; Desimone and DeStefano 2005, pp.
317-318; McClaren et al. 2005, pp. 260261; Patla 2005, pp. 328-330).
Range
In our previous status reviews and
findings, we identified the range of the
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Queen Charlotte goshawk as the islands
and mainland of southeast Alaska, and
the Queen Charlotte Islands and
Vancouver Island in British Columbia
(60 FR 33784; 62 FR 46710; 72 FR
63123; USFWS 2007). In April 2008, the
‘‘Northern Goshawk (Accipiter gentilis
laingi) Recovery Team’’ (NGRT) in
Canada released a draft recovery
strategy for the Queen Charlotte
goshawk. The NGRT reviewed
morphometric and radio-telemetry data,
and distribution of coastal habitat and
prey, and determined that, in addition
to Vancouver Island and the Queen
Charlotte Islands, the coastal mainland
of British Columbia west of the Coast
Range (including the Coastal Douglas-fir
biogeographic zone and wet Coastal
Western Hemlock subzones and
variants) is also within the range of the
subspecies (NGRT 2008, pp. 3-6). We
believe that the NGRT’s determination
is the best available information on the
range of the bird in Canada, and so for
purposes of this listing, we propose to
adopt the range definition used by the
NGRT to define the range of the
subspecies in British Columbia.
Additionally, a new land use
agreement was signed by the Haida
Nation and the Province of British
Columbia. The agreement designates
new protected areas on the Queen
Charlotte Islands and commits the
Province to ‘‘Ecosystem Based
Management’’ of forest resources.
Details about how the of the Ecosystem
Based Management scheme will be
implemented are currently being
developed and are not yet available.
Finally, the 1997 Tongass Land
Management Plan, which defined
management for most of the Queen
Charlotte goshawk’s habitat in adjacent
Southeast Alaska, was revised and
replaced with a new forest plan in
January 2008 (USDA Forest Service
2008). The new 2008 forest plan retains
most of the Conservation Strategy set
forth in the 1997 plan for the Tongass
National Forest in Southeast Alaska,
while modifying some standards and
guidelines related to goshawk nest
buffers, partial harvest requirements,
and areas that would be available for
timber harvest (USDA Forest Service
2008).
Previous Agency Action
On November 8, 2007, we published
our ‘‘Response to Court on Significant
Portion of the Range, and Evaluation of
Distinct Population Segments, for the
Queen Charlotte Goshawk’’ (72 FR
63123) (Response to Court). That
document contains a discussion of all
previous Federal actions relating to the
petition to list the subspecies. In the
Response to Court, we found that
Vancouver Island is a significant portion
of the Queen Charlotte goshawk’s range,
that southeast Alaska and British
Columbia each support distinct
population segments, and that listing is
warranted for the British Columbia DPS,
but not for the southeast Alaska DPS.
We indicated that we would publish a
proposed rule to list the British
Columbia DPS as either threatened or
endangered. This proposal is the result.
Review of the British Columbia DPS
Section 3(16) of the Act defines
‘‘species’’ to include ‘‘any distinct
population segment of and species of
vertebrate fish or wildlife which
interbreeds when mature.’’ To interpret
and implement the DPS provisions of
the Act and Congressional guidance, the
Service and the National Marine
Fisheries Service published a ‘‘Policy
Regarding the Recognition of Distinct
Vertebrate Population Segments Under
the Endangered Species Act’’ (DPS
policy) in the Federal Register on
February 7, 1996 (61 FR 4722). Under
the DPS policy, three factors are
considered in a decision concerning the
establishment and classification of a
possible DPS. The first two factors—
discreteness of the population segment
in relation to the remainder of the taxon
and the significance of the population
segment to the taxon to which it
belongs—bear on whether the
population segment is a valid DPS. If a
population meets both tests, we
consider it a DPS and then the third
factor—the population segment’s
conservation status in relation to the
Act’s standards for listing, delisting, or
reclassification, i.e., whether the
population segment is endangered or
threatened—is applied.
In our Response to Court (72 FR
63128), we determined that Queen
Charlotte goshawks in British Columbia
were distinct from those in southeast
Alaska, with differences in conservation
status, habitat management, and
New Information
Since our November 8, 2007,
Response to Court, new information
relevant to goshawk conservation has
become available. Specifically, a draft
recovery strategy for the Queen
Charlotte goshawk in British Columbia
(NGRT 2008) defined the range of the
subspecies to include the coastal
mainland west of the Coast Mountains,
in addition to Vancouver Island and the
Queen Charlotte Islands. The strategy
also reviewed threats to the subspecies
and identified potential strategies and
actions to recover populations in British
Columbia.
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regulatory mechanisms. We also found
that the population segments in British
Columbia and southeast Alaska were
both significant as defined by our DPS
policy, and concluded that two valid
DPSs exist.
We have estimated the effects of new
protected areas on the Queen Charlotte
Islands, and inclusion of the mainland
coast of British Columbia, on future
landscape condition in British Columbia
(USFWS 2008), and have considered the
modifications made to the 1997 Tongass
Land Management Plan, as reflected in
the 2008 forest plan. Significant
differences in management regimes
remain. For example, we estimate that
approximately 31 percent of the
remaining old growth will ultimately be
harvested and thereby converted to
second growth in British Columbia,
while only 12 percent of the remaining
old growth will be harvested and
converted to second growth in
Southeast Alaska (USFWS 2008, Table
A-17). When considered together with
areas already harvested, we estimate
that 59 percent of the original
productive old growth will ultimately
be harvested in British Columbia, but
only 28 percent will be harvested in
Southeast Alaska (USFWS 2008, Table
A-9). We conclude that management of
forest habitat remains sufficiently
different between Alaska and British
Columbia to support our previous
conclusion that the international border
separates two discrete populations
based on differences in habitat
management and regulatory
mechanisms. We also conclude that the
British Columbia population remains
biologically and ecologically significant
within the meaning of the DPS policy,
for the reasons set forth in the Response
to Court. Thus, we conclude that the
British Columbia population remains a
distinct population segment under the
DPS policy.
Factors Affecting the British Columbia
DPS
Section 4 of the Act (16 U.S.C. 1533),
and implementing regulations at 50 CFR
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 on the basis
of any of five factors, as follows: (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.
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Information regarding the status of, and
threats to, the British Columbia DPS of
the Queen Charlotte Goshawk in
relation to the five factors provided in
section 4(a)(1) of the Act is discussed
below.
This proposed rule addresses the
finding in our Response to Court (72 FR
63128) that listing as threatened or
endangered is warranted for the British
Columbia DPS. Below, we provide a
summary of our analysis of threats to
the British Columbia DPS from the
Response to Court, along with a new
analysis of threats to the DPS in light of
relevant new information. We have
included statistics on habitat
availability and forest management
where they are available. Our primary
sources of forest data include the British
Columbia Ministry of Forests and Range
(especially Niemann 2006 for
Vancouver Island and the coastal
mainland) and Leversee (2006) for the
Queen Charlotte Islands. Our analysis of
forest statistics is detailed in an updated
appendix to our status review (USFWS
2008), in which our data sources,
assumptions, and calculations are
described. We also rely on the NGRT
evaluation of the threats discussed
below (NGRT 2008, pp. 16-21).
Factor A. The Present or Threatened
Destruction, Modification, or
Curtailment of the Habitat or Range
Mature and old-growth forest
provides nesting and foraging habitat for
goshawks, and supports populations of
preferred prey (Iverson et al. 1996, pp.
16-18 and 41-44; Ethier 1999, pp. 61-68;
McClaren 2004, pp. 6-7). Logging within
and near nest stands has been
implicated in nest site abandonment,
although effects of such logging have
varied from nest area abandonment in
some study areas to no effect on
productivity elsewhere (CrockerBedford 1990, pp. 263-266; Penteriani
and Faivre 2001, p. 213; Doyle and
Mahon 2003, p. 39; Mahon and Doyle
2005, pp. 338-340, Doyle 2006, pp. 138139). Clearcut logging generally reduces
prey populations (USFWS 2007, pp. 6264), although, in some cases, sooty
grouse populations may increase
temporarily following logging (Hartwig
2003). Logging also impacts foraging
habitat by removing perches and
hunting cover, creating openings and
dense second-growth stands that are
avoided by goshawks (Iverson et al.
1996, p. 36).
‘‘Productive forest’’ is defined by the
British Columbia Ministry of Forest and
Range as forest capable of producing
trees large enough to be commercially
viable as timber (i.e., ‘‘merchantable’’)
(Niemann 2006, p. 1). Such forests,
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when mature, provide suitable structure
for goshawk nesting and foraging. We,
therefore, use the British Columbia
Ministry of Forest and Range’s
definition of, and statistics on,
productive forest as a measurable
approximation of goshawk habitat.
Unless otherwise specified, discussions
of mature, old-growth, and secondgrowth forests below refer to productive
forest only. Areas of non-productive (or
‘‘scrub’’) forest of smaller trees (which
are not included in the cited forest
statistics) may be used by goshawks for
foraging or other activities, but are
generally not used for nesting (Iverson
et al. 1996, pp. 41-44).
Studies of goshawk habitat within and
outside the range of the Queen Charlotte
subspecies suggest that landscape with
at least 40 to 60 percent mature or old
forest are favored for nesting (Patla
1997, pp. 71-72; Finn et al. 2002, pp.
434-435, Doyle 2005, pp. 12-18). For
example, each of the 10 nesting
territories known on the Queen
Charlotte Islands in 2004 contained at
least 41 percent mature and old-growth
forest, although only 4 territories (each
containing at least 60 percent mature
and old-growth forest) were successful
during the preceding 3–year period
(2002-2004)(Doyle 2005, p. 14).
Reynolds et al. (1992, p. 27)
recommended at least 40 percent of
goshawk home ranges be maintained in
mature or old forest cover in the
southwest United States, with another
20 percent in middle-aged forest cover.
Given these observations, we consider
landscapes on the coastal islands with
less than 40 percent cover by mature
and old-growth forest to be poor-quality
habitat, those with 40 to 60 percent
mature and old-growth forest moderatequality habitat, and those with greater
than 60 percent mature and old-growth
habitat high-quality habitat.
Goshawks may nest successfully in
areas with lower proportions of mature
and old-growth forest where prey
adapted to more open habitats is
available, or during years with high prey
populations (Doyle 2006, pp. 138-139;
Doyle 2007, p. 2; Doyle and Mahon
2003, p. 1; Iverson et al. 1996, p. 55;
USFWS 2007, p. 36). Snowshoe hares
(Lepus americanus), an important prey
species for the goshawk in some areas,
are found along edges and in open
habitats on the mainland coast
(Nagorsen 2002, pp. 92-93), so lower
proportions of mature and old-growth
forest may be suitable there, depending
on availability of prey. Cottontail rabbits
(Syvilagus floridans), a potential prey
species that occurs along edges of open
habitats, have recently been introduced
on Vancouver Island (Nagorsen 2002, p.
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96), but they are restricted to the
southern edge of the island, and have
not been documented in the goshawk’s
diet there.
No studies definitively establish the
amount of mature and old-growth forest
required where prey adapted to more
open habitats are available, but we
expect it to be lower than where such
prey are not available, and we expect it
to depend largely on prey density,
which varies spatially (across the
landscape) and temporally (from year to
year). Snowshoe hares likely add
flexibility to goshawk diets on the
mainland, especially during the winter,
and probably allow nesting in some
areas where it may not otherwise occur,
although this effect is probably
negligible during years of low hare
populations. We conclude, based on the
available information, that on average,
landscapes on the mainland with less
than 30 percent mature and old-growth
forest cover are poor habitat, 30 to 50
percent mature and old-growth forest
moderate habitat, and greater than 50
percent mature and old-growth forest
high-quality habitat.
Productive forest (capable of
producing commercially viable timber)
covers approximately 45 percent of the
42-million-acre (ac) (17-million-hectare
(ha)) Coast Forest Region delineated by
the British Columbia Ministry of Forests
and Range, which approximates the
range of the Queen Charlotte goshawk in
Canada (USFWS 2008, Table A-20).
Therefore, on average, habitat was
probably only of moderate quality for
goshawks (30 to 50 percent mature and
old growth) prior to wide-scale timber
harvest, although some areas would
have been, and remain, unsuitable (e.g.,
large alpine areas), while other areas
had extensive tracts of high-quality
habitat before logging began.
Industrial-scale logging began in the
coastal rainforests of British Columbia
in the early 1900s, peaked in the 1980s,
and has remained relatively high since
then (USFWS 2007, pp. 89-90). By 2002,
timber harvest had converted
approximately 5.2 million ac (2.1
million ha) (28 percent) of the 19
million ac (7.6 million ha) of productive
forest in coastal British Columbia to
second growth. This has reduced mature
and old forest cover to approximately 34
percent of the landscape (USFWS 2008,
Table A-20). This percentage translates,
on average, to poor-quality habitat on
the islands (less than 40 percent cover
by mature and old-growth forest), and of
moderate quality on the mainland (30 to
50 percent mature and old-growth
forest). Again, naturally non-forested
areas have always been unsuitable or
poor-quality habitat, and some areas
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likely still provide high-quality habitat,
but in general, habitat quality has
declined and is probably moderate-topoor quality in many areas, due to
timber harvest.
More than 100 new protected areas
totaling approximately 3 million ac (1.2
millon ha) were established on the
British Columbia mainland coast in
2006 (BCMAL 2006, p. 1). This was
followed by a December 2007 land use
agreement between the Province of
British Columbia and the Haida Nation,
designating new protected areas totaling
628,000 ac (254,000 ha) on the Queen
Charlotte Islands (BCOP 2007, pp. 1-2).
Approximately 5.6 million ac (2.2
million ha) of the 42-million-ac (17million-ha) Coast Forest Region is now
in protected status, where timber
harvest is not allowed. We estimate that
protected areas include approximately
2.9 million ac (1.2 million ha) of
productive forest (USFWS 2008, Table
A-19). Most of this is likely old growth,
although statistics on forest age within
the new protected areas are not
available.
Our status review in 2007 indicated
that continued logging on the coastal
islands of British Columbia would
convert another 1.2 million ac (480,000
ha) (26 percent) of the remaining
productive old-growth forest to second
growth over the next 50 years (USFWS
2007, Appendix A, Tables A-9 and A15). Future timber harvest in three of the
seven Forest Districts in the Coast Forest
Region (North Coast, Central Coast, and
Queen Charlotte Islands Districts) will
be planned using ‘‘Ecosystem Based
Management.’’ Although the
requirement is intended to support a
sustainable economy while protecting a
healthy ecosystem, no specifics have
been released (BCMAL 2006, pp. 2-3;
BCOP 2007, pp. 1-2, BC 2008, p. 1). In
the absence of any details about
implementation of this management
scheme, we rely on data and projections
currently available based on existing
management practices (summarized in
USFWS 2007, pp. 82-101; USFWS 2008,
Tables A-1 to A-20; NGRT 2008, pp. 623; see also Southwest Center for
Biological Diversity v. Babbitt, 939
F.Supp. 49 (D.D.C. 1996)). Future
harvest levels are uncertain, but
additional conversion of old-growth
forest to second growth is expected to
continue throughout the DPS.
For the purposes of evaluating threats
and recovery strategies, the NGRT has
divided the British Columbia range of
the Queen Charlotte goshawk into four
Conservation Regions: Haida Gwaii
(Queen Charlotte Islands), Vancouver
Island, North Coast, and South Coast
(NGRT 2008, pp. 4-6). They reviewed
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the best-available scientific information
and, where data were unavailable, used
expert opinion and data-derived
estimates (NGRT 2008, p. 16). They
consider threats to the goshawk from
habitat loss and fragmentation to be low
to moderate in the North Coast region,
moderate in the South Coast region, and
moderate to high on the Queen
Charlotte Islands and Vancouver Island
(NGRT 2008, pp. 16-17). These
conclusions are consistent with our
understanding of the habitat threats
faced by goshawks in British Columbia.
Thus, while some risk is present
throughout the DPS’s range, habitat on
the mainland coast, particularly the
North Coast, appears to be more secure
than on the islands.
In general, although new protected
areas should help conserve some of the
remaining goshawk habitat, significant
degradation has occurred, and we
expect continued decline in habitat
quality within the range of the British
Columbia DPS as old-growth forest
available for harvest is converted to
second growth. Ultimately, most of the
harvested landscape is likely to become
low-quality or poor-quality habitat.
Reductions in prey populations and loss
of perches and hunting cover are likely
to have increasingly negative effects on
goshawks’ ability to hunt prey and feed
their young. Based on the available
information, we conclude that habitat
loss is likely to contribute substantially
to loss of long-term viability of Queen
Charlotte goshawks in British Columbia.
Therefore, we conclude that the present
or threatened destruction, modification,
or curtailment of habitat or range is a
significant threat to the British
Columbia DPS of the subspecies.
Factor B. Overutilization for
Commercial, Recreational, Scientific, or
Educational Purposes
In Canada, the laingi subspecies has
been federally listed as ‘‘Threatened’’
under the Species at Risk Act since 2002
(51 Eliz. II, Ch. 29). British Columbia
has included the subspecies on its ‘‘Red
List,’’ indicating imperiled status, since
1994 (Cooper and Stevens 2000, pp. 3
and 14). In 2004, British Columbia
designated the bird a Schedule 1
Species at Risk, indicating vulnerability
to forest management and a need for
protection beyond that provided by
general forest management regulations
(BCMSRM 2002, pp. 1-2; Barisoff 2004,
p. 2; USFWS 2007, pp. 11-12). Each of
these designations provides some
protection from harvest. Birds may be
taken illegally on occasion, but we have
no indication that such activity is
common, or that it poses any threat to
the subspecies. We do not expect
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overutilization for commercial,
recreational, scientific, or educational
purposes to contribute to population
declines or extinction risk. The NRGT
considers the threat of human
persecution to be low to none (NGRT
2008, pp. 17 and 21). We conclude that
overutilization for commercial,
recreational, scientific, or educational
purposes does not now, or in the
foreseeable future, pose a significant
threat to the British Columbia DPS of
the Queen Charlotte goshawk.
Factor C. Disease or Predation
Disease and predation associated with
Queen Charlotte goshawks are not well
documented, but small populations
such as those on Vancouver Island and
the Queen Charlotte Islands can be
vulnerable to diseases, particularly
when simultaneously stressed by other
factors such as prey shortages. The
NGRT considers the threat from disease
low, but has expressed concern that
emerging diseases such as West Nile
virus may be difficult to mitigate, if
outbreaks occur (NGRT 2008, pp. 16 and
21).
Predation can also suppress small
populations, leaving them vulnerable to
other population stress factors. Goshawk
predators within the British Columbia
DPS include great horned owl (Bubo
virginianus), bald eagle (Haliaeetus
leucocephalus), American marten
(Martes americana), wolverine (Gulo
gulo), and black bear (Ursus
americanus). Raccoons (Procyon lotor),
which could take eggs or nestlings, have
also been introduced on the Queen
Charlotte Islands (Golumbia et al. 2003,
pp. 13-15). The NGRT considers
predation risk low across the range of
the DPS (NGRT 2008, pp. 16-20).
No information suggests that disease
or predation currently put Queen
Charlotte goshawks in danger of
extinction in the British Columbia DPS,
but either disease or predation may
contribute to extinction risk in the
foreseeable future (see Foreseeable
Future section below) if their effects are
exacerbated by other population
stressors such as prey shortages, habitat
limitations, or unfavorable weather
(which affect nesting effort). We
conclude that disease and predation do
not currently put the Queen Charlotte
goshawk at risk of extinction, although
there is moderate risk that either could
affect population viability in the
foreseeable future.
Factor D. Inadequacy of Existing
Regulatory Mechanisms
Direct Take: Throughout Canada, the
Species at Risk Act protects the Queen
Charlotte goshawk from direct harm,
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harassment, and take on Federal lands.
Individuals, eggs, and occupied nests
are protected on all jurisdictions in
British Columbia under the provincial
Wildlife Act (RSBC 1996, section 34).
Possession and trade in the subspecies
is forbidden throughout Canada, as is
destruction of nests. Based on the
available information, regulation of
direct take appears to be adequate
throughout the DPS.
Habitat Protection: Two mechanisms
exist to protect habitat under the
Federal Species at Risk Act in Canada:
(1) Identification of critical habitat,
which may not be destroyed; and (2)
conservation agreements, which may be
negotiated with any entity or individual.
Other mechanisms have been used by
the Provincial government to protect
goshawk habitat (discussed below), but
critical habitat has not yet been formally
designated under the Species at Risk
Act (NGRT 2008, p. 31).
The Species at Risk Act requires
development of a recovery strategy,
which identifies the scientific
framework for recovery. The NGRT,
which includes experts from Provincial
and Federal (U.S. and Canadian)
government agencies, private
consultants, non-government
organizations, industry, and First
Nations, has produced a draft recovery
strategy summarizing natural history,
threats, knowledge gaps, and recovery
approach (NGRT 2008). A recovery
action plan, to define and guide
implementation of the recovery strategy,
is expected within 2 years after the
recovery strategy is finalized (NGRT
2008, pp. i and 34).
The recovery strategy identifies many
legal mechanisms for protecting habitat
at various scales. Land use planning is
perhaps the most broad-scale method
used by the British Columbia Provincial
Government for establishing protected
areas and limits on development to
conserve biodiversity across the
Province. Approximately 13 percent of
the landscape across coastal British
Columbia is protected from logging in
various parks and reserves. These
reserves average approximately 50
percent cover by productive forest
(USFWS 2008, Table A-23), so on
average they appear to provide
moderate- to high-quality habitat.
Special management zones, where
timber harvest is allowed but nontimber values such as wildlife and
recreation are given additional
consideration, are also designated in
some areas (BC 2000, p. 30).
Logging on Crown (Provincial) lands
is regulated by the Forest and Range
Practices Act. This statute and its
companion regulations set objectives for
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many resources, and require timber
harvest plans describing how each
objective will be met. Integrated with
the Forest and Range Practices
Regulations is the Identified Wildlife
Management Strategy (IWM Strategy),
which was developed by the British
Columbia Government to provide
additional protection for species
requiring specific measures beyond the
‘‘coarse filter’’ system of protected areas
and the various regulations governing
timber harvest generally. The IWM
Strategy provides for establishment of
Wildlife Habitat Areas around known
goshawk nests, and allows prescription
of management measures within those
areas (BCMWLAP 2004, pp. 1-4). Where
nests are identified, Wildlife Habitat
Areas are proposed, usually by
Provincial biologists, although anyone
may make a proposal. The proposed
Area is reviewed and may be modified
by the Ministry of Environment,
comments are solicited from affected
parties, a Timber Supply Impact
Analysis is conducted, the proposal is
reviewed by a Provincial Committee,
and a final decision is made by the
Ministry of Environment (BCMWLAP
2004, pp. 4-10). The final decision may
reflect compromises intended to reduce
impacts on timber operators or others.
Once a Wildlife Habitat Area is
designated for goshawks, timber harvest
is not allowed in a core area of
approximately 500 ac (200 ha) to protect
the active nest, alternate nests, and postfledging habitat. A management plan
must be developed for timber harvesting
and road construction in the
surrounding management zone of about
5,000 ac (2,000 ha) to protect foraging
habitat. Non-binding recommendations
have been developed to help guide these
management plans (McClaren 2004, pp.
10-11). To date, at least 28 Wildlife
Habitat Areas covering 36,470 ac
(14,765 ha) have been designated for
laingi goshawks in British Columbia
(USFWS 2007, p. 113).
Provincial policy limits the amount of
land that may be protected under the
IWM Strategy (in Wildlife Habitat Areas
or other such mechanisms) to one
percent of the short-term timber supply
in each Forest District, for all Identified
Wildlife species combined. This
limitation may be waived with adequate
justification, and does not have legal
force of law, but is considered a goal of
government (BCMWLAP 2004, p. 4; FPB
2004, pp. 7-8). Because the one percent
cap is on impacts to the ‘‘short-term’’
timber supply, rather than the long-term
supply, calculations must be based on
mature forest stands. In the South Island
Forest District (which covers southern
Vancouver Island), less than one-third
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of the productive forest is at or near
economic maturity, so Wildlife Habitat
Areas and other such retentions for
Identified Wildlife are limited to
approximately one-third of 1 percent of
the productive forest in the Timber
Harvesting Land Base. Similar situations
exist wherever past harvest is extensive,
yet these areas have the greatest need for
conservation (FPB 2004, pp. 7-8).
Another potential limitation of the
one percent cap on goshawk
conservation is apparent in areas with
high numbers of other at-risk species
and continuing threats to those species
(Wood and Flahr 2004, pp. 394-395).
Southern Vancouver Island, for
example, is a biodiversity ‘‘hot spot,’’
with a large number of rare and endemic
species (Scudder 2003). Some of these
species have habitat needs that differ
from those of the goshawk, yet their
legitimate conservation needs must be
accommodated along with the goshawk
within the one percent limit. In the
South Island Forest District, Wildlife
Habitat Areas are approaching, and may
have already exceeded, the one percent
cap (Wood et al. 2003, p. 53).
In 2004, the British Columbia
Ministry of Sustainable Resource
Management established ‘‘Provincial
Non-Spatial Old Growth Objectives’’
that must be addressed in Forest
Stewardship Plans (Abbott 2004, pp. 16). The order established ‘‘Landscape
Units’’ and old growth forest retention
objectives for each of those units.
Individual Landscape Units are assigned
to low, intermediate, or high
biodiversity emphasis, with lower
percentages of old-growth retention
identified for lower-emphasis units. The
exact amount of old growth that must be
retained depends on the forest type
(biogeoclimatic zone) and the ‘‘natural
disturbance regime’’ identified for each
biogeoclimatic zone variant. Within the
Coastal Western Hemlock (Tsuga
heterophylla) Zone, old growth
retention objectives range from 9 to 13
percent; in the Mountain Hemlock (T.
mertensiana) Zone, objectives range
from 19 to 28 percent; and in the Coastal
Douglas-fir (Pseudotsuga menziesii)
Zone, 9 to 13 percent. The objectives are
termed ‘‘non-spatial’’ because they
describe amounts but not specific areas
to be retained, unlike other orders that
establish protection of specified areas.
In order to meet the non-spatial, oldgrowth objectives, tenure-holders and
Timber Supply Area managers can rely
on existing protected areas such as
Wildlife Habitat Areas, riparian
reserves, inoperable lands, and other
designations that result in retention of
old-growth stands.
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The Province of British Columbia has
made significant progress in
implementation of several elements of
their conservation program for
goshawks, as described above. A draft
recovery strategy has been released.
Several of the actions identified in the
draft strategy have begun; others are
likely to be implemented once the
Recovery Implementation Group
completes an action plan (NGRT 2008,
pp. 21-32). It is likely that the identified
strategies will assist in long-term
conservation of the subspecies in British
Columbia. The strategy, however, is
currently in draft form with an action
plan not anticipated for 2 years (NGRT
2008, p. 34).
In summary, the Province’s Protected
Area Strategy protects 13 percent of the
land area, and 13 percent of the
productive forest, in parks and other
reserves within the range of the British
Columbia DPS. We believe that this is
inadequate, by itself, to support a viable
population of goshawks because much
of the protected land is not forested, and
because goshawks are dispersed at low
densities across a vast landscape and are
likely to need more than 13 percent of
the landscape in suitable condition
(specifically, mature and old-growth
forest). Management of timber lands
within the province continues to evolve
with increasing emphasis on
conservation of non-timber values
associated with forests, including
goshawks. However, the Province’s
Identified Wildlife Management
Strategy, which allows for designation
and protection of Wildlife Habitat Areas
around goshawk nests, is limited by a
policy-level cap of one percent of the
short-term timber supply. We
acknowledge that much work is
underway in the Province to address the
threats and conservation needs of Queen
Charlotte goshawks. Because much of
the regulatory framework is relatively
new, some key elements of the recovery
effort have not yet been fully developed
or implemented, so it is difficult at this
time to assess their potential
effectiveness (see Conservation Efforts,
below).
We conclude that continued
development and implementation of
regulatory mechanisms will be required
to minimize the risk of extinction for the
British Columbia DPS of the Queen
Charlotte goshawk. Existing regulatory
mechanisms do not appear to
adequately reduce the threat posed to
goshawk habitat from timber harvest at
this time.
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Factor E. Other Natural or Manmade
Factors Affecting the Species’ Continued
Existence
We are not aware of current
population-level threats to Queen
Charlotte goshawks due to competition
for either prey or nest sites. The NGRT
rates this threat as low across the DPS
(NGRT 2008, p. 16). Competition among
herbivores has been implicated in
grouse declines on the Queen Charlotte
Islands, however, where introduced
deer have reportedly overbrowsed
blueberries and other important grouse
foods, resulting in grouse population
declines (Golumbia et al. 2003, pp. 1011; Doyle 2004, pp. 15-16). This has
probably reduced goshawk nesting effort
(number of pairs attempting to nest) on
the Queen Charlotte Islands during
periods of low squirrel density, when
goshawks might otherwise have nested
if grouse had been more abundant.
Predation on sooty grouse eggs and
nestlings by introduced raccoons may
also be a factor contributing to grouse
population declines on the Queen
Charlotte Islands (Golumbia et al. 2003,
pp. 13-15).
Threats due to low prey diversity are
considered low on the mainland,
moderate on Vancouver Island, and high
on the Queen Charlotte Islands (NGRT
2008, pp. 16 and 18) (see previous
discussion under Factor A).
We know of no contaminants that
pose current or potential future threats
to goshawks within the British
Columbia DPS.
Natural disasters such as windstorms,
landslides, avalanches, earthquakes,
tsunamis, and volcanic eruptions could
affect localized areas within the British
Columbia DPS, but are not believed to
pose population-level threats, either
now or in the foreseeable future. Large,
landscape-altering forest fires, insect
infestations, or tree diseases could pose
population-level threats to Queen
Charlotte goshawks in the British
Columbia DPS if they affect major
portions of either Vancouver Island or
the Queen Charlotte Islands, both of
which support contiguous blocks of
forest habitat on one or two large
islands, rather than on many islands as
in the southeast Alaska DPS. Global
climate change could increase the
frequency and severity of large fires,
forest pests, or forest diseases (Bachelet
et al. 2005, pp. 2244-2248), but we do
not know how likely such events might
be. Increases in forest cover, as cooladapted species invade alpine areas and
plant communities generally shift
northward (Hamann and Wang 2006,
pp. 2780-2782), could increase the
amount of habitat available to goshawks,
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but such gains could be offset by loss of
forest cover elsewhere. We conclude
that climate change is likely to have
mixed effects on goshawks. The
possibility exists that landscape-level
changes due to climate change could
negatively affect the British Columbia
DPS of the Queen Charlotte goshawk,
but these threats do not currently place
the DPS in danger of extinction, nor do
we expect them to in the foreseeable
future.
The small goshawk population on the
Queen Charlotte Islands appears to be
genetically distinct from goshawks
elsewhere and may be genetically
isolated (Gust et al. 2003, p. 22; Talbot
et al. 2005, pp. 2-3; Talbot 2006, p. 1).
Isolated populations such as the one on
the Queen Charlotte Islands are
typically at greater risk of extinction or
genetic problems such as inbreeding
depression and loss of genetic diversity,
particularly where populations are
small (Lande 1988, pp. 1456-1457;
Frankham et al. 2002, pp. 312-317).
Inbreeding depression is a reduction in
viability and fecundity that occurs as
large populations decline and rapid
inbreeding produces increased
prevalence of harmful genes that are
typically rare in larger populations
(Lande 1988, p. 1456). Loss of genetic
diversity occurs as populations are
reduced, and can diminish future
adaptability to a changing environment.
The NGRT considers threats from
genetic isolation to be high for the
Queen Charlotte Islands, and low to
none elsewhere in British Columbia
(NGRT 2008, pp. 16, 18-19). We concur
with this assessment.
Hybridization can be a threat when
related species or subspecies interbreed,
diluting the genetics of the smaller
population. Populations on Vancouver
Island apparently interbreed with the
subspecies of goshawk that inhabits
much of mainland North America,
Accipiter gentilis atricapillus (Gust et al.
2003, p. 22; Talbot et al. 2005, pp. 2-3;
Talbot 2006, p. 1). This seems likely
given the proximity of Vancouver Island
to the mainland. On the mainland, the
Queen Charlotte goshawk (A. g. laingi)
inhabits wet coastal forests, but likely
interbreeds with the interior subspecies
(A. g. atricapillus) within the drier
coastal western hemlock zones between
coastal and interior forests. The NGRT
considers this a transition zone between
the two subspecies, but concludes,
based on limited sampling, that
‘‘Vancouver Island and (coastal)
mainland B.C. populations (of A. g.
laingi) do not appear to be interbreeding
with interior B.C. populations (of A. g.
atricapillus) (NGRT 2008, pp. 3, 6, and
18). We have no information indicating
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that A. g. atricapillus goshawks are
expanding into the range of the Queen
Charlotte goshawk, and we consider the
transition zones between the subspecies
to be stable. We therefore conclude that
hybridization does not pose a significant
threat to the continued survival of the
Queen Charlotte goshawk, now or in the
foreseeable future.
The breeding population across the
British Columbia DPS appears to be
about 352 to 374 pairs (NGRT 2008, p.
8). Small populations such as this are at
greater risk of extinction than larger
populations from environmental
stochasticity (random or otherwise
unpredictable events such as disease
epidemics, prey population crashes, or
environmental catastrophes), which can
reduce the population to a density at
which it is vulnerable to demographic
stochasticity (fluctuations in birth and
mortality rates) (Engen et al. 2001, p.
794; Adler and Drake, 2008, p. 192).
We conclude that the British
Columbia DPS of the Queen Charlotte
goshawk is not currently in danger of
extinction due to other natural and
manmade factors (Factor E) such as
competition, contaminants, natural
disasters, climate change, or genetic
problems resulting from hybridization
or isolation. However, due to its small
population size, this DPS is likely to be
vulnerable to prey fluctuations,
hybridization (on Vancouver Island), or
inbreeding depression (on the Queen
Charlotte Islands) in the foreseeable
future. Each of these potential threats
would likely become more important if
habitat modification causes population
declines, exacerbating the impact of the
threats.
Conservation Efforts
Section 4(b)(1)(A) of the Act requires
us to determine if a species should be
listed ‘‘after taking into account those
efforts, if any, being made...to protect
such species, whether by predator
control, protection of habitat and food
supply, or other conservation
practices.’’ We consider existing
regulatory mechanisms and other efforts
underway in British Columbia to
conserve goshawks and goshawk habitat
in our analysis of the five listing factors,
above. In many cases, conservation
actions are planned, but have not yet
been implemented. In other cases,
conservation efforts may be underway,
but their effectiveness is uncertain. To
help guide evaluation of such efforts,
the Service published a ‘‘Policy for
Evaluation of Conservation Efforts
When Making Listing Decisions’’ (PECE
Policy) (68 FR 15100, March 28, 2003).
The PECE Policy ‘‘applies to those
formalized conservation efforts that
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have not yet been implemented or have
been implemented, but have not yet
demonstrated whether they are effective
at the time of a listing decision.’’ For
efforts meeting these criteria, the policy
directs us to consider (1) the certainty
that a conservation effort will be
implemented, and (2) the certainty that
the effort will be effective.
British Columbia’s draft Recovery
Strategy identifies several broad
strategies and recommended approaches
to address threats to the goshawk, with
specific actions listed to address each
approach (NGRT 2008, pp. 26-30).
Because the recovery strategy itself is
draft, it does not meet the PECE Policy’s
definition of a formalized conservation
effort (68 FR 15104, SUPPLEMENTARY
INFORMATION, Response 17). Many of the
actions listed in the draft recovery
strategy, however, have already been
implemented and warrant evaluation as
formalized conservation efforts. We also
evaluate actions identified in the draft
recovery strategy that have not yet been
implemented, because we believe that
the NGRT intends to pursue them.
Among the actions that have not yet
been implemented are predictions of
habitat changes resulting from climate
change, monitoring and modeling of
West Nile Virus impacts, and
monitoring of edge-adapted competitors
and predators. The draft Recovery
Strategy is a broad-scale document that
does not provide details on who would
be responsible for implementing the
identified actions, the source and
security of funding, legal authorities,
procedural and legal requirements
(permits, authorizations and
permissions, etc.), and volunteer (e.g.,
landowner or timber tenure holder)
participation necessary to implement
the actions, as required for us to
conclude with a high level of certainty
that the actions will be implemented
(PECE Policy, 68 FR 15114-15115).
Among the actions identified in the
draft strategy that have already begun,
the most highly developed is protection
of habitat using existing authorities and
mechanisms. These are described in
NGRT (2008) Appendix 1, and are
evaluated above under Factor D
(inadequacy of existing regulatory
mechanisms). We consider habitat
protection an effective strategy, but
cannot conclude that implementation
under existing mechanisms adequately
removes the threat posed to the Queen
Charlotte goshawk from habitat loss.
Other actions listed in the draft
Recovery Strategy have been
implemented (or have begun and are
ongoing), but have not yet been proven
effective. Included in this category are:
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• Development of general wildlife
measures to ensure sufficient foraging
habitat outside Wildlife Habitat Areas,
• Landscape modeling to identify
habitat availability,
• Research and implementation of
silviculture methods to promote prey
populations,
• Development and implementation of
management plans for introduced
species,
• Development and implementation of
outreach and education for landowners
and resource managers,
• Effectiveness monitoring of habitat
management,
• Development and use of spatially
explicit population models and genetic
samples to define population and
distribution objectives,
• Use of habitat conservation tools to
conserve and recover populations in
each conservation region, and
• Identification and monitoring of
prey populations.
The PECE Policy lists six criteria
necessary to establish that a
conservation effort will be effective in
adequately reducing threats to a level
that listing a species as threatened or
endangered is not necessary. These
criteria include (1) a description of the
threats addressed by the conservation
effort, (2) explicit, incremental
objectives for the conservation effort
and dates for achieving the objectives,
(3) the steps necessary to implement the
conservation effort, (4) quantifiable
measures to demonstrate progress
toward, and achievement of, objectives,
(5) provisions for monitoring and
reporting progress on implementation
and effectiveness, and (6) incorporation
of adaptive management principles (68
FR 15115). The draft Recovery Strategy
is a broad-level planning document that
describes threats to the goshawk and
provides recommendations for
addressing those threats. It lacks detail
on implementation of the recommended
actions. A recovery action plan, which
will likely provide much of the detail
described in the PECE Policy, is
expected within 2 years of finalizing the
draft Recovery Strategy. Meanwhile, we
are not aware of currently available
documents that provide the information
(criteria 1 through 6, immediately
above) necessary to ascertain with a
high level of certainty that the actions
will be effective.
A major conservation effort recently
announced by the Province of British
Columbia is Ecosystem Based
Management for lands managed for
multiple uses in the Central Coast,
North Coast, and Haida Gwaii regions
(BCMAL 2006, pp. 1-3; BCOP 2007, pp.
1-2). Ecosystem Based Management ‘‘is
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a new adaptive approach to managing
human activities that ensures the
coexistence of healthy ecosystems and
communities. The intent is to support a
sustainable economy while protecting a
healthy ecosystem’’ (BCMAL 2006, p. 2).
Key elements include establishment of
protected areas; higher standards for key
environmental values; use of traditional,
local, and scientific knowledge to
develop management targets;
recognition of Aboriginal and other
local interests in land use planning and
management; and promotion of stability,
certainty, and long-term resource use
(BCMAL 2006, p. 2).
The British Columbia government has
moved to implement Ecosystem Based
Management on the mainland coast and,
more recently, the Queen Charlotte
Islands. Land use agreements have been
reached with various First Nations, and
efforts are underway to identify lands
for protection. We have a high level of
certainty that Ecosystem Based
management will be implemented in
some form, although details of which
lands will be protected, and how timber
harvest will be regulated, are not yet
available. We expect that protection of
additional areas will result in reduced
logging overall, although the rate of
logging on the remaining lands is not
known. We therefore cannot be
sufficiently certain that the program will
reduce threats to goshawks to a level
that listing as threatened or endangered
is no longer necessary.
Foreseeable Future
The term ‘‘threatened species’’ means
any species (or subspecies or, for
vertebrates, distinct population
segments) that is likely to become an
endangered species within the
foreseeable future throughout all or a
significant portion of its range. The Act
does not define the term ‘‘foreseeable
future.’’ However, in a January 16, 2009,
memorandum addressed to the Acting
Director of the U.S. Fish and Wildlife
Service, the Office of the Solicitor,
Department of the Interior, concluded,
‘‘. . . as used in the ESA, Congress
intended the term ‘foreseeable future’ to
describe the extent to which the
Secretary can reasonably rely on
predictions about the future in making
determinations about the future
conservation status of the species.’’ In a
footnote, the memorandum states, ‘‘In
this memorandum, references to
‘reliable predictions’ are not meant to
refer to reliability in a statistical sense.
Rather, I use the words ‘‘rely’’ and
‘‘reliable’’ according to their common,
non-technical meanings in ordinary
usage. Thus, for the purposes of this
memorandum, a prediction is reliable if
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it is reasonable to depend upon it in
making decisions’’ (M-37021, January
16, 2009).
We assess foreseeable future in terms
of the threats to the species in question.
Threats to the British Columbia DPS of
the Queen Charlotte goshawk are
primarily related to habitat loss. Other
threats are likely to be significant only
if populations decline to critically low
levels. We expect the amount of suitable
goshawk habitat to continue to decline
until all the old growth available for
harvest has been converted to second
growth. At that time, we expect the
amount of habitat to stabilize, with less
habitat than is available today.
Thereafter, logging will be limited to the
second growth, which we expect will be
harvested on a sustained-yield basis.
Because second-growth stands provide
suitable goshawk habitat for only the
final 10 to 20 percent of each timber
harvest rotation (USFWS 2007, pp. 6267), we estimate that approximately 15
percent of the second growth will be
mature, at any given time, and will
provide suitable nesting and foraging
habitat, while 85 percent will be
younger, and provide largely unsuitable
habitat (USFWS 2007, pp. 99 and 131).
While we recognize that ongoing
changes in management regimes, market
conditions and technology may affect
the intensity and pace of habitat loss,
we consider logging projections
provided by the BC Ministry of Forests
and Range, and by the individual Tree
Farm License holders, to be the best
information available at this time for
evaluating habitat trends and threats
into the future. In our review, we used
such projections to estimate how much
old-growth and mature second-growth
forest would be available after all
available old growth has been converted
to second growth, which we expect to
occur in approximately 50 years
(USFWS 2007, pp. 85-91 and pp. 103104; USFWS 2008, Tables A-1 and A-10
to A17).
Wildlife populations typically
continue to decline for several
generations after habitat loss has
occurred, as the populations reach
equilibrium with their habitat and
competitors (Tilman et al. 1994, pp. 6566). Therefore, extinction may occur
many years after habitat loss has ceased.
We do not know precisely how long it
will take before the population
stabilizes or goes extinct following
habitat loss, but we do expect the
goshawk population to continue to
decline for several generations after
habitat loss peaks in about 50 years. We
therefore define foreseeable future for
the British Columbia DPS as
approximately 50 years plus a period of
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Conclusion
Our analysis of threats suggests that as
additional forest is logged, habitat
quality will continue to decline for the
British Columbia DPS of the Queen
Charlotte goshawk and its prey. With
reduced prey populations, and less
favorable habitats in which to hunt, we
expect that Queen Charlotte goshawks
within the British Columbia DPS would
have reduced nesting success.
Ultimately, this is expected to result in
even smaller populations than currently
occur (352 to 374 breeding pairs).
Smaller populations likely would
become increasingly vulnerable to
factors such as predation, disease, prey
fluctuations, hybridization, and
inbreeding depression. We conclude,
therefore, that while extinction is not
imminent, the Queen Charlotte goshawk
is in danger of extinction in the
foreseeable future within the British
Columbia DPS. Therefore, we propose to
list the Queen Charlotte goshawk in
portions of British Columbia (not
including the Queen Charlotte Islands,
as explained below) as a threatened
species under the Act.
Significant Portions of the British
Columbia DPS’s Range
We now consider whether more
immediate threats place the goshawk in
imminent danger of extinction in any
significant portion of the DPS’s range.
The Act defines an endangered species
as one ‘‘in danger of extinction
throughout all or a significant portion of
its range,’’ and a threatened species as
one ‘‘likely to become an endangered
species within the foreseeable future
throughout all or a significant portion of
its range.’’ The term ‘‘significant portion
of its range’’ is not defined by the
statute.
For purposes of this finding, a
significant portion of a species’ (or
subspecies’ or DPS’s) range is an area
that is important to the conservation of
the species because it contributes
meaningfully to the representation,
resiliency, or redundancy of the species.
Adequate representation ensures
conserving the breadth of the genetic
makeup of the species needed to
conserve its adaptive capabilities.
Populations in peripheral areas, for
example, may be important in this
aspect. Resilience refers to the ability of
a species to recover from periodic
disturbances or environmental
variability. In general, a species is
usually most resilient in highest quality
habitat. Redundancy of populations is
needed to provide a margin of safety for
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the species to withstand catastrophic
events. The contribution of the range
portion must be at a level such that its
loss would result in a decrease in the
ability to conserve the species. It does
not mean that if such portion of the
range were lost, the species as a whole
would be in danger of extinction
immediately or in the foreseeable future;
rather, that the ability to conserve the
species would be compromised.
Vancouver Island: We previously
found that Vancouver Island is a
significant portion of the Queen
Charlotte goshawk’s entire range
(Response to Court, 72 FR 63128;
November 8, 2007). This determination
was based on the amount of habitat and
proportion of the rangewide population
still occurring on Vancouver Island, and
the importance of the population there
to redundancy and resilience of the
subspecies, rangewide.
The NGRT estimates that Vancouver
Island supports 165 (44 to 47 percent)
of the 352 to 374 breeding pairs within
British Columbia (NGRT 2008, p. 8).
Loss of this large percentage of the small
population would clearly result in a
meaningful decrease in redundancy
across the DPS. Geographically,
Vancouver Island covers 27 percent of
the DPS’s range (NGRT 2008, p. 6).
Thus, although Vancouver Island
comprises about 25 percent of the DPS’s
range in British Columbia, it supports
nearly half of the breeding pairs.
Approximately half of the original
goshawk habitat remains on Vancouver
Island (USFWS 2008, Table A-10).
Goshawks there nest in both old-growth
and mature forest. Nesting densities (as
measured by mean distance between
nesting areas) are higher on Vancouver
Island than on the Queen Charlotte
Islands or in southeast Alaska (NGRT
2008, p. 8), suggesting that prey
availability is good and other necessary
resources are available. Because the
remaining habitat appears to be of high
quality, we believe that the habitat on
Vancouver Island contributes
significantly to the resiliency of the
DPS, as defined above.
Preliminary genetic results suggest
that goshawks on Vancouver Island may
be genetically distinct from goshawks
on the Queen Charlotte Islands (Talbot
et al. 2005, pp. 2-3; Talbot 2006, p. 1).
These potentially significant findings, if
confirmed, suggest that loss of the
Vancouver Island population would
reduce both representation and
resilience of the subspecies, as defined
above. This genetic diversity, for
example, may help the subspecies
respond and adapt to future
environmental changes, particularly as
warmer-adapted forest communities
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move northward in response to climate
change.
Because the Queen Charlotte goshawk
population on Vancouver Island
contributes to the redundancy and
resiliency of the British Columbia DPS,
and may provide important genetic
representation, we conclude that
Vancouver Island is a significant portion
of the DPS.
Threats on Vancouver Island:
Approximately 13 percent of the
landscape, but only 9 percent of the
productive forest, on Vancouver Island
is protected in reserves (USFWS 2008,
Tables A-9 and A-23). Mature and oldgrowth forest currently covers
approximately 42 percent of Vancouver
Island (USFWS 2008, Table A-21),
suggesting that habitat, on average, is of
moderate quality.
We estimate that an additional 16
percent of the productive forest (or 31
percent of the remaining old-growth
forest) is likely to be harvested over the
next 50 years (USFWS 2008, Table A-9),
resulting in a landscape with
approximately 35 percent cover by
mature and old-growth forest (USFWS
2008, Table A-24). We consider this
poor habitat. Thus, habitat loss (Factor
A) does not pose an immediate threat to
the goshawk population on Vancouver
Island, but is likely to become a
significant threat within the foreseeable
future.
The NGRT considers threats from
habitat loss and fragmentation high on
Vancouver Island (NGRT 2008, p. 16).
There is evidence that goshawks on
Vancouver Island hybridize with the
mainland (atricapillus) form of the
northern goshawk to a greater degree
than goshawks elsewhere in the DPS or
rangewide (Gust et al. 2003, p. 22;
Talbot et al. 2005, pp. 2-3; Talbot 2006,
p. 1), except possibly in the ‘‘transition
zone’’ on the mainland (see discussion
above, under Factors Affecting the
British Columbia DPS, Factor E). We
consider Vancouver Island a ‘‘stable
hybrid zone’’ (Haig et al. 2006, p. 7),
where the laingi phenotype will
continue to be represented in the
population.
We do not expect that overutilization
(Factor B), predation or disease (Factor
C), inadequacy of regulatory
mechanisms (Factor D), or other threats,
such as prey fluctuations or inbreeding
depression (Factor E) will have a
disproportionately greater impact on
Vancouver Island than elsewhere in the
DPS’s range.
We do not believe that habitat loss
(Factor A) or hybridization rates (Factor
E) place goshawks on Vancouver Island
in imminent threat of extinction because
these threats are of a chronic, long-term
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nature. Continued habitat loss, however,
is likely to result in a progressively
smaller, more vulnerable population.
Therefore, we have determined that
proposing to list the species on
Vancouver Island as threatened is
appropriate.
Queen Charlotte Islands: The Queen
Charlotte Islands are believed to support
about 10 to 18 breeding pairs, though
few nest during poor prey years (Doyle
2005, p. 18; Doyle 2007, p. 8; McClaren
2006, p. 8; NGRT 2008, p. 8). Currently
available genetic analyses suggest that
the population there may be unique
(Talbot 2006, p.1) and genetically
isolated (Talbot et al. 2005, p. 3). Birds
from this population are also apparently
more consistently dark than birds from
Vancouver Island or southeast Alaska
(Taverner 1940, p. 160; Beebe 1974, p.
54; Webster 1988, pp. 46-47). This
genetic distinctiveness and strength of
phenotypic expression may represent
adaptation to a dark, rainforest habitat;
lack of prey in open habitats; a diet
dominated by avian prey; a periodically
prey-poor environment; and an absence
of immigration by the mainland
subspecies. Loss of this population
would eliminate a small but significant
pool of the genetic diversity and
perhaps genetic purity (genetic coding
for the small, dark phenotype) within
the subspecies, which could
substantially reduce the subspecies’
representation and environmental
resilience. We conclude that the Queen
Charlotte Islands are a significant
portion of the DPS’s range.
Threats on the Queen Charlotte
Islands: Habitat loss (Factor A) has been
significant on the Queen Charlotte
Islands, where about 27 percent of the
productive forest has been converted to
second growth (USFWS 2008, Table A9). Mature and old-growth forest covers
approximately 52 percent of the
landscape, providing moderate-quality
habitat, on average (USFWS 2008, Table
A-21).
As part of a recent Strategic Land Use
Agreement between the Haida Nation
and the Province of British Columbia,
new protected areas have been
established and future logging on the
Queen Charlotte Islands will be guided
by ‘‘Ecosystem Based Management
Objectives’’ (BC 2007, pp. 5-22). These
actions are likely to reduce future
threats from logging, but details of the
management regime are not yet
available.
New protected areas, announced in
December 2007, added 628,000 ac
(254,000 ha) of land, including
approximately 500,000 ac (202,000 ha)
of productive forest, to the reserves on
the Queen Charlotte Islands. An
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estimated 38 percent of the productive
forest on the islands is now protected in
parks and other reserves (USFWS 2008,
Table A-9) where logging is forbidden.
When considered in combination with
old-growth and mature stands retained
within the otherwise harvested
landscape, we expect approximately 51
percent of the landscape of the Queen
Charlotte Islands to support mature and
old-growth forests in the future (USFWS
2008, Table A-24). This should provide
habitat of moderate quality.
Harvest of old growth is expected to
continue, but projections of future
logging rates under the new
management regime are not yet
available. We anticipate that habitat loss
will be less than the 14 percent loss we
projected under the previous
management regime (USFWS 2007, pp.
99-101; USFWS 2008, Tables A-1, A-13
and A-15). NGRT considers threats to
nesting habitat moderate, but threats to
foraging habitat, and threats from
habitat fragmentation, high on the
Queen Charlotte Islands (NGRT 2008,
pp. 16-18).
We conclude that habitat loss has
been significant and is expected to
continue, although this threat will likely
be reduced to an unknown extent by
implementation of ecosystem based
management objectives for logging
across the Queen Charlotte Islands.
Ongoing logging is constrained by
several mechanisms that protect nesting
habitat and some foraging habitat.
Habitat loss, therefore, does not put the
Queen Charlotte Islands at more
immediate risk of extinction than
elsewhere in the DPS, because a higher
proportion of productive old-growth
forest has been retained on these islands
than elsewhere in the DPS.
Overutilization for commercial,
recreational, scientific, or educational
purposes (Factor B) is not believed to be
a significant risk, and is not expected to
contribute to population declines or
extinction risk on the Queen Charlotte
Islands. The NGRT considers these
threats of low magnitude (NGRT 2008,
pp. 16 and 21).
Disease and predation (Factor C) are
not well documented, but small
populations can be vulnerable to
diseases (some of which may be
currently unknown or just emerging,
such as West Nile virus) particularly
when those populations are
simultaneously stressed by other factors
such as prey shortages. The current
population is very small and apparently
not supplemented by immigration
(Talbot et al. 2005, pp. 2-3) and
therefore has limited genetic diversity.
This limited genetic diversity is likely to
reduce the population’s ability to
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56767
survive outbreaks of exotic diseases.
Small populations may also be
suppressed by predation. The NGRT
considers threats from predation and
disease to be low (NGRT 2008, pp. 1620), but acknowledges that addressing
impacts from disease may be difficult
(NGRT 2008, pp. 17-21). We conclude
that disease and predation do not
currently place goshawks in danger of
extinction on the Queen Charlotte
Islands, but may contribute to extinction
risk, especially if their effects are
exacerbated by other population
stressors such as prey shortages, habitat
limitations, or unfavorable weather (all
of which affect nesting effort).
Most of the existing regulatory
mechanisms (Factor D) are similar to
elsewhere in the DPS (as discussed
above). We conclude that, as elsewhere
in the DPS, continued development of
existing regulatory mechanisms will be
necessary to prevent goshawks on the
Queen Charlotte Islands from becoming
in danger of extinction in the
foreseeable future, but inadequacies of
the current regulatory regime do not put
these goshawks in immediate danger of
extinction.
Other factors such as competition,
natural disasters, loss of genetic
diversity, inbreeding depression, or prey
fluctuations (Factor E) can act alone or
in combination to reduce survival or
fecundity. The goshawk population on
the Queen Charlotte Islands is very
small, with an estimated 10 to 18
breeding pairs (NGRT 2008, p. 8). In
2007, 9 of 13 known territories were
occupied, but only 3 pairs produced
young. This was the highest rate of nest
activity observed since intensive
monitoring began in 2000 (Doyle 2007,
pp. 5-9). This small population, which
is apparently reproductively isolated
from adjacent populations (Talbot et al.
2005, p. 3), likely has limited ability to
adapt to changes in the environment
because its genetic diversity is low.
There is also risk of reduced
reproductive success due to inbreeding
depression. Of particular concern is the
limited prey available to goshawks on
the Queen Charlotte Islands. Declines in
grouse populations, likely caused by
introduced deer and raccoons, have
resulted in heavy reliance on introduced
red squirrels, which are known to
fluctuate with cone crops.
The NGRT considers threats from low
prey diversity and availability, and from
genetic isolation, to be high, threats
from introduced species to be moderate,
and threats from competition and
climate change to be low on the Queen
Charlotte Islands (NGRT 2008, pp. 1620).
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We conclude that goshawks on the
Queen Charlotte Islands are currently in
danger of extinction due primarily to
demographic factors (small population
size and genetic isolation), which makes
them particularly vulnerable to
fluctuations of the few available prey
species, environmental catastrophes, or
disease. The small number of nesting
pairs magnifies the impacts of current
and potential threats. We propose,
therefore, to list the Queen Charlotte
goshawk as endangered on the Queen
Charlotte Islands, a significant portion
of the British Columbia DPS’s range.
Mainland British Columbia: The
NGRT estimates that the British
Columbia coastal mainland covers 64
percent of the subspecies’ geographic
range in the DPS, and supports
approximately half of the breeding
population in the DPS (NGRT 2008, pp.
6-8). Goshawks from this portion of the
range likely provide immigrants to
Vancouver Island, as goshawks have
been documented moving between
Vancouver Island and the mainland
(McClaren 2004, p. 3). The mainland
could represent a potential source
population, should populations on
Vancouver Island decline. Loss of
Queen Charlotte goshawks on the
mainland would result in a significant
gap in the subspecies’ distribution, and
a significant reduction in the resiliency
and redundancy of the British Columbia
DPS. We therefore consider the coastal
mainland of British Columbia a
significant portion of the DPS’s range.
Threats on mainland British
Columbia: Only 43 percent of the
coastal mainland of British Columbia
supports productive forest, compared to
68 percent on the Queen Charlotte
Islands and 78 percent on Vancouver
Island. Approximately 19 percent of that
productive forest has been converted to
young second growth, resulting in a
landscape with only 30 percent cover by
mature and old-growth forest (USFWS
2008, Table A-21), which we consider to
be habitat of poor to moderate quality.
Within that landscape, however, we
expect that there are areas of varying
sizes with greater forest cover that
provide higher quality habitat.
We believe that goshawks on the
mainland can successfully use
landscapes with lower coverage of
mature and old-growth forest than
goshawks on the islands, because
snowshoe hares and hoary marmots
(Marmota caligata), which are adapted
to open habitats, inhabit the mainland
coast, but not the islands (Nagorsen
2002, pp. 92-93 and 100). The
Vancouver Island marmot (Marmota
vancouverensis) inhabits a relatively
small area on the south central portion
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of Vancouver Island (Nagorsen 2002, p.
103). We do not believe that this species
is a significant prey source for most
goshawks on Vancouver Island because
of its restricted distribution. Because
prey that use open habitats are widely
distributed on the mainland, we
consider landscapes with 30 to 50
percent cover by mature and old-growth
forest moderate-quality habitat for
goshawks there.
As on the Queen Charlotte Islands,
future timber harvest in two of the six
forest districts on the mainland (North
Coast and Central Coast) will be by
‘‘Ecosystem Based Management,’’
details of which have not yet been
finalized (BCMAL 2006, pp. 2-3).
If productive forest outside designated
parks and other reserves is retained in
the otherwise logged matrix at a rate
similar to on the Queen Charlotte
Islands and Vancouver Island (because
of inoperable ground and retention to
protect non-timber resources), we
estimate that 4 million ac (1.7 million
ha) of old-growth forest will remain
available for harvest on the mainland
(USFWS 2008, Table A-22). Harvest of
this old-growth forest would result in a
landscape of approximately 22 percent
mature and old-growth forest (USFWS
2008, Table A-24). We believe that this
would, on average, be poor-quality
habitat. As in other portions of the
Queen Charlotte goshawk’s range, some
areas would likely provide tracts of
higher quality habitat, and some areas
would be unsuitable for goshawks. The
NGRT considers threats from habitat
loss and fragmentation to be moderate
in the southern portion of the mainland
and low to moderate in the northern
portion (NGRT 2008, p. 16). We
conclude that habitat loss (Factor A)
does not appear to place goshawks on
the coastal mainland of British
Columbia in imminent danger of
extinction, but continued loss of oldgrowth habitat is likely to reduce habitat
quality and contribute to population
declines in the foreseeable future.
We do not expect overutilization
(Factor B), predation or disease (Factor
C), inadequacy of regulatory
mechanisms (Factor D), or other threats,
such as prey fluctuations, climate
change, natural disasters, or inbreeding
depression (Factor E) to have
disproportionately greater impacts on
the mainland than elsewhere in the
DPS’s range. The NGRT considers each
of these threats to be low on the
mainland, except that they consider
threats from low prey availability
moderate in the southern portion of the
mainland (NGRT 2008, p. 16).
It is likely that Queen Charlotte
goshawks on the mainland encounter
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Sfmt 4702
the mainland (atricapillus) subspecies
of the northern goshawk, and that some
hybridization occurs, although we are
aware of no documentation to confirm
this hypothesis. The NGRT considers
the drier coastal western hemlock zones
on the mainland to be transitional areas
between subspecies. As on Vancouver
Island, we believe these areas to be
stable hybrid zones where the laingi
form will persist unless changes in
habitat favoring the atricapillus form
occur. Such changes could conceivably
be caused by factors such as climate
change or timber harvest. Our current
understanding of climate change effects
is inadequate to allow predictions
concerning competitive advantages that
may result. Likewise, we are unable to
conclude that timber harvest will favor
one subspecies over another.
We do not believe that habitat loss
(Factor A) or hybridization rates (Factor
E) place Queen Charlotte goshawks on
the mainland in imminent danger of
extinction because these threats are of a
chronic, long-term nature. Continued
habitat loss, however, is likely to result
in poor-quality habitat across a large
portion of the range, leading to a
progressively smaller, more vulnerable
population in danger of extinction in
the foreseeable future. Therefore, listing
as threatened is appropriate.
In summary, we find that the Queen
Charlotte goshawk on the coastal
mainland and on Vancouver Island and
the surrounding, smaller islands of
southern British Columbia is not at
imminent risk of extinction, but is likely
to become in danger of extinction in the
foreseeable future. We therefore propose
to list the Queen Charlotte goshawk
population in those areas as threatened.
We find that because of its small
population size and genetic isolation,
the Queen Charlotte goshawk
population on the Queen Charlotte
Islands (an area also known as Haida
Gwaii) is at imminent risk of extinction.
We therefore propose to list the Queen
Charlotte goshawk in this significant
portion of the range as endangered.
However, it is possible that, with further
analysis, we may limit our
determination on the status of the
Queen Charlotte Goshawk to the DPS
level only. That is, we may list the
entire DPS as either threatened or
endangered in the final rule.
Available Conservation Measures
Conservation measures provided to
species listed as endangered or
threatened under the Act include
recognition (through listing),
requirements for Federal protection, and
prohibitions against certain practices.
Recognition through listing results in
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public awareness, and encourages
conservation actions by Federal and
State governments, private agencies and
groups, and individuals.
Section 7(a) of the Act, as amended,
and as implemented by regulations at 50
CFR part 402, requires Federal agencies
to evaluate their actions within the
United States or on the high seas, and
consult with the Service with respect to
any species that is proposed or listed as
endangered or threatened, and with
respect to its critical habitat, if any is
designated. Because the British
Columbia DPS of the Queen Charlotte
goshawk is entirely outside the United
States, and is not ‘‘on the high seas,’’
section 7 of the Act does not apply to
this DPS. Therefore, there will be no
requirement to evaluate management
actions or consult with the Service.
Further, we cannot designate critical
habitat in foreign countries (50 CFR
424.12(h)), so we are not proposing
critical habitat for the DPS.
Section 8(a) of the Act authorizes the
provision of limited financial assistance
for the development and management of
programs that the Secretary of the
Interior determines to be necessary or
useful for the conservation of
endangered and threatened species in
foreign countries. Sections 8(b) and 8(c)
of the Act authorize the Secretary to
encourage conservation programs for
foreign threatened and endangered
species, and to provide assistance for
such programs in the form of personnel
and training of personnel.
The Act and its implementing
regulations set forth a series of general
prohibitions and exceptions that apply
to all endangered and threatened
wildlife. These prohibitions, under 50
CFR 17.21 and 17.31, in part, make it
illegal for any person subject to the
jurisdiction of the United States to
‘‘take’’ (take includes harass, harm,
pursue, hunt, shoot, wound, kill, trap,
capture, or collect, or to attempt any of
these) within the United States or upon
the high seas; import or 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 endangered or threatened
wildlife species. It also is illegal to
possess, sell, deliver, carry, transport, or
ship any such wildlife that has been
taken in violation of the Act. Certain
exceptions apply to agents of the
Service and State conservation agencies.
These prohibitions would not apply to
the Queen Charlotte goshawk within the
British Columbia DPS, except as they
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15:14 Nov 02, 2009
Jkt 220001
apply to import into the United States
or foreign commerce.
Permits may be issued to carry out
otherwise prohibited activities
involving endangered and threatened
wildlife species under certain
circumstances. Regulations governing
permits are codified at 50 CFR 17.22 for
endangered species, and 17.32 for
threatened species. Permits may be
issued for scientific purposes, to
enhance the propagation or survival of
the species, and for incidental take in
connection with otherwise lawful
activities.
Peer Review
In accordance with our policy,
‘‘Notice of Interagency Cooperative
Policy for Peer Review in Endangered
Species Act Activities,’’ that was
published on July 1, 1994 (59 FR
34270), we will seek the expert opinion
of at least three appropriate
independent specialists regarding this
proposed rule. The purpose of such
review is to ensure listing decisions are
based on scientifically sound data,
assumptions, and analyses. We will
send copies of this proposed rule to the
peer reviewers immediately following
publication in the Federal Register.
Required Determinations
Paperwork Reduction Act
This proposed rule does not contain
any new collections of information that
require approval by the Office of
Management and Budget (OMB) under
44 U.S.C. 3501 et seq. The regulation
will not impose new recordkeeping or
reporting requirements on State or local
governments, individuals, businesses, or
organizations. We may not conduct or
sponsor and you are not required to
respond to a collection of information
unless it displays a currently valid OMB
control number.
National Environmental Policy Act
We have determined that
Environmental Assessments and
Environmental Impact Statements, as
defined under the authority of the
National Environmental Policy Act of
1969, need not be prepared in
connection with regulations adopted
pursuant to section 4(a) of the Act. A
notice outlining our reasons for this
determination was published in the
Federal Register on October 25, 1983
(48 FR 49244).
Clarity of the Rule
We are required by Executive Order
12866 and 12988, and by the
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Fmt 4702
Sfmt 4702
56769
Presidential Memorandum of June 1,
1998, to write all rules in plain
language. This means that each rule we
publish must: (a) Be logically organized;
(b) Use the active voice to address
readers directly; (c) Use clear language
rather than jargon; (d) Be divided into
short sections and sentences; and, (e)
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 the ADDRESSES
section. 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.
References Cited
A list of the references used to
develop this proposed rule is available
upon request (see FOR FURTHER
INFORMATION CONTACT).
Author
The primary author of this proposed
rule is Steve Brockmann, Juneau Fish
and Wildlife Field Office, U.S. Fish and
Wildlife Service (see FOR FURTHER
INFORMATION CONTACT).
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 follows:
PART 17—[AMENDED]
1. The authority citation for part 17
continues to read as follows:
Authority: 16 U.S.C. 1361-1407; 16 U.S.C.
1531-1544; 16 U.S.C. 4201-4245; Pub. L. 99625, 100 Stat. 3500; unless otherwise noted.
2. Amend § 17.11(h) by adding two
new entries for ‘‘Goshawk, Queen
Charlotte’’ in alphabetical order under
BIRDS to the List of Endangered and
Threatened Wildlife as follows:
§ 17.11 Endangered and threatened
wildlife.
*
*
*
*
*
(h) * * *
E:\FR\FM\03NOP1.SGM
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Federal Register / Vol. 74, No. 211 / Tuesday, November 3, 2009 / Proposed Rules
Species
Common
name
Scientific
name
*
Vertebrate
population where
endangered or
threatened
Historic
range
*
*
*
When
listed
Status
Critical
habitat
Special
rules
*
*
*
*
*
*
BIRDS
*
*
*
*
Goshawk,
Queen
Charlotte
Accipiter
gentilis
laingi
Canada (That portion of British Columbia that includes Vancouver Island
and its surrounding islands, the mainland coast west of the crest of the
Coast Range, and the Queen Charlotte Islands)
Entire, except Queen
Charlotte Islands
T
NA
NA
Goshawk,
Queen
Charlotte
Accipiter
gentilis
laingi
Canada (That portion of British Columbia that includes Vancouver Island
and its surrounding islands, the mainland coast west of the crest of the
Coast Range, and the Queen Charlotte Islands)
Queen Charlotte Islands
E
NA
NA
*
*
*
Dated: October 20, 2009.
Sam D. Hamilton,
Director, Fish and Wildlife Service.
[FR Doc. E9–26154 Filed 11–2–09; 8:45 am]
BILLING CODE 4310–55–S
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R9-IA-2009-0056]
[90100-1660-1FLA B6]
[RIN 1018-AW00]
Endangered and Threatened Wildlife
and Plants; Listing the Salmon-Crested
Cockatoo as Threatened Throughout
Its Range with Special Rule
dcolon on DSK2BSOYB1PROD with PROPOSALS
AGENCY: Fish and Wildlife Service,
Interior.
ACTION: Proposed rule.
SUMMARY: We, the U.S. Fish and
Wildlife Service (Service), propose to
list the salmon-crested cockatoo
(Cacatua moluccensis) as threatened,
with a special rule, under the
Endangered Species Act of 1973, as
amended (Act). This proposal, if made
final, would extend the Act’s
protections to this species and amend
the regulations at 50 CFR part 17 to
create a special rule under authority of
section 4(d) of the Act that provides
measures that are necessary and
advisable for the conservation of the
salmon-crested cockatoo. The Service
seeks data and comments from the
public on this proposed listing and
special rule.
VerDate Nov<24>2008
15:14 Nov 02, 2009
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*
*
DATES: We will accept comments
received or postmarked on or before
February 1, 2010. We must receive
requests for public hearings, in writing,
at the address shown in the FOR FURTHER
INFORMATION CONTACT section by
December 18, 2009.
ADDRESSES: You may submit comments
by one of the following methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments
on Docket No. FWS-R9-IA-2009-0056.
• U.S. mail or hand-delivery: Public
Comments Processing, Attn: FWS-R9IA-2009-0056; Division of Policy and
Directives Management; U.S. Fish and
Wildlife Service; 4401 N. Fairfax Drive,
Suite 222; Arlington, VA 22203.
We will not accept e-mails or faxes.
We will post all comments on https://
www.regulations.gov. This generally
means that we will post any personal
information you provide us (see the
Public Comments section below for
more information).
FOR FURTHER INFORMATION CONTACT:
Douglas Krofta, Chief, Branch of Listing,
Endangered Species Program, U.S. Fish
and Wildlife Service, 4401 N. Fairfax
Drive, Room 420, Arlington, VA 22203;
telephone 703–358–2171; facsimile
703–358–1735. If you use a
telecommunications devise for the deaf
(TDD), call the Federal Information
Relay Service (FIRS) at 800–877–8339.
SUPPLEMENTARY INFORMATION:
Public Comments
We intend that any final action
resulting from this proposal will be as
accurate and as effective as possible.
Therefore, we are requesting comments
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*
*
from other government agencies, the
scientific community, industry, or any
other interested party concerning this
proposed rule. We particularly seek
comments concerning:
• Biological, commercial trade, or
other relevant data concerning any
threats (or lack thereof) to this species
and regulations that may be addressing
those threats;
• Additional information concerning
the range, distribution, and population
size of this species;
• Any information on the biological or
ecological requirements of this species;
• Current or planned activities in the
areas occupied by this species and
possible impacts of these activities on
this species;
• Any information concerning the
effects of climate change on this species
or its habitats;
• Any information concerning
numbers of this species held in captivity
in the United States, breeding success,
and types of activities that should be
addressed in the special rule; and
• The appropriate conservation status
for the salmon-crested cockatoo.
If you submit a comment via https://
www.regulations.gov, your entire
comment—including any personal
identifying information—will be posted
on the Web site. If you submit a
hardcopy comment 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 comments on
https://www.regulations.gov.
E:\FR\FM\03NOP1.SGM
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Agencies
[Federal Register Volume 74, Number 211 (Tuesday, November 3, 2009)]
[Proposed Rules]
[Pages 56757-56770]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-26154]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[FWS-R7-ES-2009-0049]
[MO 9221050083-B2]
[RIN 1018-AW32]
Endangered and Threatened Wildlife and Plants; Listing the
British Columbia Distinct Population Segment of the Queen Charlotte
Goshawk Under the Endangered Species Act
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: We, the U.S. Fish and Wildlife Service (Service), propose to
list the British Columbia distinct population segment (DPS) of the
Queen Charlotte goshawk (Accipiter gentilis laingi) as threatened,
except on the Queen Charlotte Islands (a significant portion of the
DPS's range), where we propose to list the goshawk as endangered, under
the Endangered Species Act of 1973, as amended (Act). This proposal, if
made final, would extend the Act's protection to this subspecies in
British Columbia, Canada, on Vancouver Island and the surrounding
smaller islands, the Queen Charlotte Islands, and the coastal mainland
west of the Coast Mountains. The Service seeks data and comments from
the public on this proposal.
DATES: We will consider comments received on or before January 4, 2010.
We must receive requests for public hearings, in writing, at the
address shown in the ADDRESSES section by December 18, 2009.
ADDRESSES: You may submit comments by one of the following methods:
Federal eRulemaking Portal: https://www.regulations.gov. Follow the instructions for submitting comments.
U.S. mail or hand-delivery: Public Comments Processing,
Attn: FWS-R7-ES-2009-0049; Division of Policy and Directives
Management; U.S. Fish and Wildlife Service; 4401 N. Fairfax Drive,
Suite 222; Arlington, VA 22203.
We will post all comments on https://www.regulations.gov. This
generally means that we will post any personal information you provide
us (see the Public Comments section below for more information).
FOR FURTHER INFORMATION CONTACT: Steve Brockmann, Juneau Fish and
Wildlife Field Office, 3000 Vintage Blvd. Suite 201, Juneau, AK 99801;
telephone (907) 780-1181; fax (907) 586-7154.
SUPPLEMENTARY INFORMATION:
Public Comments
We intend that any final action resulting from this proposal will
be based on the best scientific and commercial data available and be as
accurate and as effective as possible. Therefore, we request comments
or suggestions from other government agencies, the scientific
community, industry, or any other interested party concerning this
proposed rule. We particularly seek comments regarding:
(1) Biological information, population status, commercial trade, or
other relevant data concerning any threat (or lack thereof) to this
subspecies,
(2) The factors that are the basis for making a listing
determination for a species under section 4(a) of the Endangered
Species Act of 1973, as amended (Act) (16 U.S.C. 1531 et seq.), which
are:
(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.
(3) The appropriate conservation status for the British Columbia
DPS of the Queen Charlotte goshawk, and
(4) Specific information on the areas identified as significant
portions of the
[[Page 56758]]
range in this proposed rule, including threats.
You may submit your comments and materials concerning this proposed
rule by one of the methods listed in the ADDRESSES section. We will not
consider comments sent by e-mail or fax or to an address not listed in
the ADDRESSES section.
If you submit a comment via https://www.regulations.gov, your entire
comment--including any personal identifying information--will be posted
on the website. If you submit a hardcopy comment 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 comments 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, 3000 Vintage Blvd, Suite 201, Juneau, AK 99801.
Final promulgation of the regulations concerning the listing of
this subspecies will take into consideration all comments and
additional information that we receive, and may lead to a final
regulation that differs from this proposal.
Queen Charlotte Goshawk Biology
The Queen Charlotte goshawk is a comparatively small, dark
subspecies of northern goshawk (Accipiter gentilis) that nests and
forages in the temperate, rainforest-dominated archipelagos and coastal
mainland of southeast Alaska and British Columbia. Natural history and
threats to the subspecies are described in detail in our status review
(USFWS 2007; USFWS 2008) and evaluated in our most recent finding,
published in the Federal Register on November 8, 2007 (72 FR 63123).
Below, we briefly summarize key aspects of the Queen Charlotte
goshawk's biology.
Goshawks typically nest and forage in old-growth forest, but use
mature second-growth (previously harvested, regenerating stands that
have developed adequate structure) where old-growth forest is limited
(Titus et al. 1994, pp. 19-24; Iverson et al. 1996, pp. 27-40; McClaren
and Pendergast 2003, pp. 4-6). Non-forested land, recently clear-cut
areas, and young second-growth stands are avoided (Iverson et al. 1996,
pp. 27-40).
Forest regeneration following timber harvest usually results in
dense second-growth stands that may support populations of some prey
species, but goshawks avoid these habitats, presumably because they are
too dense for the hawks to effectively hunt (DeStefano and McCloskey
1997, p. 38; Beier and Drennan 1997, p. 570; Greenwald et al. 2005, pp.
125-126; USFWS 2007, pp. 62-67).
As second-growth stands approach economic maturity, the forest
structure develops adequately to allow goshawks to forage below the
canopy. Second growth reaches economic maturity when its growth rate
begins to slow. Trees of this age typically have not reached maximum
size. Canopies of these stands are usually uniformly dense unless the
stand was harvested in a multi-age system or has been thinned. We refer
to such stands as ``mature'', or ``mature second growth.'' In this
document, ``young second growth'' refers to second growth that has not
yet reached maturity. Mature forest with structure suitable for goshawk
nesting and foraging may develop as early as 45 to 50 years following
harvest on the most productive sites in the southern portion of the
Queen Charlotte goshawk's range (Doyle 2004, pp. 27-28; McClaren 2003,
p. 19), but may take over 100 years on less productive sites (Iverson
et al. 1996, p. 71). These stands are typically harvested within a
decade or two of reaching economic maturity, if they are in an area
currently open to logging. On lands managed for sustained-yield timber
harvest, approximately 10 to 20 percent of the second growth is
typically mature and suitable as goshawk habitat, although this
percentage varies with harvest history, stand treatments, and current
demand for timber (Daniel et al. 1979, pp. 304-344). Unharvested
retention areas (e.g., stream buffers) provide old-growth habitat in
addition to any mature second growth in harvested landscapes.
``Old growth'' or ``old forest'' refers to a structural stage of
forest characterized by several age classes of trees, including
dominant trees that have reached the maximum size typical for the site,
accumulations of dead, dying, and decaying trees and logs, and younger
trees growing in gaps between the dominant trees. Such stands are
typically over 250 years old within the range of the Queen Charlotte
goshawk, and have not been previously harvested.
Goshawks hunt primarily by flying between perches and launching
attacks from those perches. They take a variety of medium-sized prey,
depending largely on local availability (Squires and Reynolds 1997, p.
1), which varies markedly among the islands in the Queen Charlotte
goshawk's range. Red squirrels (Tamiasciurus hudsonicus) and sooty
grouse (Dendragopus fuliginosis) (formerly blue grouse, D. obscurus)
form the bulk of the diet in many locations, with thrushes, jays,
crows, ptarmigan, and woodpeckers frequently taken as well (Ethier
1999, pp. 21-22 and 32-47; Lewis 2001, pp. 81-107; Lewis et al. 2004,
pp. 378-382; Doyle 2005, pp. 30-31). During winter, many avian prey
species migrate from the region, reducing the variety and abundance of
prey available (Ethier 1999, p. 22; MacDonald and Cook 1999, pp. 23-24;
Nagorsen 2002, pp. 92-97; Doyle 2005, p. 31). Winter diets of the Queen
Charlotte goshawk are largely unknown.
Prey availability is defined by prey abundance and suitability of
habitat for successful hunting. Commercial logging can reduce both.
Mature and old-growth forest habitat provides productive habitat for
prey species in a setting where goshawks can effectively hunt. Timber
harvest typically results in prey population declines because few
potential prey species within the range of the Queen Charlotte goshawk
are adapted to open and edge habitats (Iverson et al. 1996, pp. 59-61;
Doyle and Mahon 2003, p. 39; USFWS 2007, pp. 42-45). Where those logged
areas grow into dense second-growth stands, hunting is impaired because
these stands do not offer adequate flight space (DeStefano and
McCloskey 1997, p. 38; Beier and Drennan 1997, p. 570; Greenwald et al.
2005, pp. 125-126; USFWS 2007, pp. 62-67).
Queen Charlotte goshawk nests are typically located in large trees
within mature or old-growth forest stands that have greater volume and
canopy cover than the surrounding forest (Iverson et al. 1996, pp. 47-
56; Flatten et al. 2002, pp. 2-3; McClaren 2003, p. 12; McClaren and
Pendergast 2003, pp. 4-6; Doyle 2005, pp. 12-14; USFWS 2007, pp. 26-
30). Nesting pairs appear to be territorial, with nests spaced somewhat
uniformly across available habitat. Nesting density, as measured by
mean distance between adjacent nesting areas, appears to vary with
habitat quality (primarily prey availability). Queen Charlotte goshawks
appear to nest at lower densities than northern goshawks studied
elsewhere (McClaren 2003, pp.13 and 21; Doyle 2005, p. 15; USFWS 2007,
pp. 45-47).
The best available information suggests that viable nesting
territories (which are approximately 24,700 acres (10,000 hectares)
each) contain at least 40 percent mature and old-growth forest (Doyle
2005, p. 14; USFWS 2007, pp.
[[Page 56759]]
75-78). However, goshawks may nest in areas with lower proportions of
mature and old-growth forest where prey adapted to more open habitats
is abundant (Doyle 2006, pp. 135-140; Iverson et al. 1996, p. 55; USFWS
2007, p. 36).
Individual nests are frequently not used in subsequent years as
pairs often move to an alternate nest. Most alternate nests are
clustered within a few hundred acres (200 to 500 hectares) (McClaren
2003, p. 13; Flatten et al. 2001, pp. 9-11), although females have been
documented leaving the nesting area altogether and nesting in
subsequent years with a new mate in a different territory up to 95
miles (152 kilometers) away. Males have been documented moving up to 2
miles (3.2 kilometers) between subsequent nests, but apparently remain
in their nesting area in subsequent years (Flatten et al. 2001, pp. 9-
10).
Nest occupancy (percentage of nest areas with adult goshawks
present) and nesting activity (percentage of nest areas with eggs laid)
appear to vary with habitat suitability, prey availability, and
weather, with greater occupancy or activity in areas with less
fragmented forest habitat and in years with higher prey abundance and
warmer, drier weather (Desimone and DeStefano 2005, pp. 317-318; Doyle
and Smith 1994, p. 126; Ethier 1999, pp. 31 and 36; Fairhurst and
Bechard 2005, pp. 231-232; Finn et al. 1998, p. 1; Finn et al. 2002,
pp. 270-271; McClaren 2003, pp. 11 and 16; Patla 1997, pp. 34-35; Patla
2005, pp. 328-330; McClaren et al. 2002, p. 350; Salafsky et al. 2005,
pp. 242-244).
When prey availability and weather are suitable and nesting is
initiated, nest success (percent of active nests that fledge at least
one young) is typically high (87 percent rangewide, 1991 to 2004), as
is productivity (1.6 to 2.0 fledglings per active nest) (USFWS 2007, p.
54). Fledglings typically spend about 6 weeks within several hundred
yards (several hundred meters) of their nests learning flight and
hunting skills before dispersing (McClaren et al. 2005, p. 257).
Retention of mature forest structure near the nest is believed to be
important for supporting this developmental stage (Reynolds et al.
1992, pp. 15-16; Kennedy et al. 1994, p. 80; Ethier 1999, p. 31; Finn
et al. 2002, pp. 270-271; McClaren 2003, pp. 11 and 16; Desimone and
DeStefano 2005, pp. 317-318; McClaren et al. 2005, pp. 260-261; Patla
2005, pp. 328-330).
Range
In our previous status reviews and findings, we identified the
range of the Queen Charlotte goshawk as the islands and mainland of
southeast Alaska, and the Queen Charlotte Islands and Vancouver Island
in British Columbia (60 FR 33784; 62 FR 46710; 72 FR 63123; USFWS
2007). In April 2008, the ``Northern Goshawk (Accipiter gentilis
laingi) Recovery Team'' (NGRT) in Canada released a draft recovery
strategy for the Queen Charlotte goshawk. The NGRT reviewed
morphometric and radio-telemetry data, and distribution of coastal
habitat and prey, and determined that, in addition to Vancouver Island
and the Queen Charlotte Islands, the coastal mainland of British
Columbia west of the Coast Range (including the Coastal Douglas-fir
biogeographic zone and wet Coastal Western Hemlock subzones and
variants) is also within the range of the subspecies (NGRT 2008, pp. 3-
6). We believe that the NGRT's determination is the best available
information on the range of the bird in Canada, and so for purposes of
this listing, we propose to adopt the range definition used by the NGRT
to define the range of the subspecies in British Columbia.
Previous Agency Action
On November 8, 2007, we published our ``Response to Court on
Significant Portion of the Range, and Evaluation of Distinct Population
Segments, for the Queen Charlotte Goshawk'' (72 FR 63123) (Response to
Court). That document contains a discussion of all previous Federal
actions relating to the petition to list the subspecies. In the
Response to Court, we found that Vancouver Island is a significant
portion of the Queen Charlotte goshawk's range, that southeast Alaska
and British Columbia each support distinct population segments, and
that listing is warranted for the British Columbia DPS, but not for the
southeast Alaska DPS. We indicated that we would publish a proposed
rule to list the British Columbia DPS as either threatened or
endangered. This proposal is the result.
New Information
Since our November 8, 2007, Response to Court, new information
relevant to goshawk conservation has become available. Specifically, a
draft recovery strategy for the Queen Charlotte goshawk in British
Columbia (NGRT 2008) defined the range of the subspecies to include the
coastal mainland west of the Coast Mountains, in addition to Vancouver
Island and the Queen Charlotte Islands. The strategy also reviewed
threats to the subspecies and identified potential strategies and
actions to recover populations in British Columbia.
Additionally, a new land use agreement was signed by the Haida
Nation and the Province of British Columbia. The agreement designates
new protected areas on the Queen Charlotte Islands and commits the
Province to ``Ecosystem Based Management'' of forest resources. Details
about how the of the Ecosystem Based Management scheme will be
implemented are currently being developed and are not yet available.
Finally, the 1997 Tongass Land Management Plan, which defined
management for most of the Queen Charlotte goshawk's habitat in
adjacent Southeast Alaska, was revised and replaced with a new forest
plan in January 2008 (USDA Forest Service 2008). The new 2008 forest
plan retains most of the Conservation Strategy set forth in the 1997
plan for the Tongass National Forest in Southeast Alaska, while
modifying some standards and guidelines related to goshawk nest
buffers, partial harvest requirements, and areas that would be
available for timber harvest (USDA Forest Service 2008).
Review of the British Columbia DPS
Section 3(16) of the Act defines ``species'' to include ``any
distinct population segment of and species of vertebrate fish or
wildlife which interbreeds when mature.'' To interpret and implement
the DPS provisions of the Act and Congressional guidance, the Service
and the National Marine Fisheries Service published a ``Policy
Regarding the Recognition of Distinct Vertebrate Population Segments
Under the Endangered Species Act'' (DPS policy) in the Federal Register
on February 7, 1996 (61 FR 4722). Under the DPS policy, three factors
are considered in a decision concerning the establishment and
classification of a possible DPS. The first two factors--discreteness
of the population segment in relation to the remainder of the taxon and
the significance of the population segment to the taxon to which it
belongs--bear on whether the population segment is a valid DPS. If a
population meets both tests, we consider it a DPS and then the third
factor--the population segment's conservation status in relation to the
Act's standards for listing, delisting, or reclassification, i.e.,
whether the population segment is endangered or threatened--is applied.
In our Response to Court (72 FR 63128), we determined that Queen
Charlotte goshawks in British Columbia were distinct from those in
southeast Alaska, with differences in conservation status, habitat
management, and
[[Page 56760]]
regulatory mechanisms. We also found that the population segments in
British Columbia and southeast Alaska were both significant as defined
by our DPS policy, and concluded that two valid DPSs exist.
We have estimated the effects of new protected areas on the Queen
Charlotte Islands, and inclusion of the mainland coast of British
Columbia, on future landscape condition in British Columbia (USFWS
2008), and have considered the modifications made to the 1997 Tongass
Land Management Plan, as reflected in the 2008 forest plan. Significant
differences in management regimes remain. For example, we estimate that
approximately 31 percent of the remaining old growth will ultimately be
harvested and thereby converted to second growth in British Columbia,
while only 12 percent of the remaining old growth will be harvested and
converted to second growth in Southeast Alaska (USFWS 2008, Table A-
17). When considered together with areas already harvested, we estimate
that 59 percent of the original productive old growth will ultimately
be harvested in British Columbia, but only 28 percent will be harvested
in Southeast Alaska (USFWS 2008, Table A-9). We conclude that
management of forest habitat remains sufficiently different between
Alaska and British Columbia to support our previous conclusion that the
international border separates two discrete populations based on
differences in habitat management and regulatory mechanisms. We also
conclude that the British Columbia population remains biologically and
ecologically significant within the meaning of the DPS policy, for the
reasons set forth in the Response to Court. Thus, we conclude that the
British Columbia population remains a distinct population segment under
the DPS policy.
Factors Affecting the British Columbia DPS
Section 4 of the Act (16 U.S.C. 1533), and implementing regulations
at 50 CFR 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 on the basis of any
of five factors, as follows: (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. Information regarding the status of,
and threats to, the British Columbia DPS of the Queen Charlotte Goshawk
in relation to the five factors provided in section 4(a)(1) of the Act
is discussed below.
This proposed rule addresses the finding in our Response to Court
(72 FR 63128) that listing as threatened or endangered is warranted for
the British Columbia DPS. Below, we provide a summary of our analysis
of threats to the British Columbia DPS from the Response to Court,
along with a new analysis of threats to the DPS in light of relevant
new information. We have included statistics on habitat availability
and forest management where they are available. Our primary sources of
forest data include the British Columbia Ministry of Forests and Range
(especially Niemann 2006 for Vancouver Island and the coastal mainland)
and Leversee (2006) for the Queen Charlotte Islands. Our analysis of
forest statistics is detailed in an updated appendix to our status
review (USFWS 2008), in which our data sources, assumptions, and
calculations are described. We also rely on the NGRT evaluation of the
threats discussed below (NGRT 2008, pp. 16-21).
Factor A. The Present or Threatened Destruction, Modification, or
Curtailment of the Habitat or Range
Mature and old-growth forest provides nesting and foraging habitat
for goshawks, and supports populations of preferred prey (Iverson et
al. 1996, pp. 16-18 and 41-44; Ethier 1999, pp. 61-68; McClaren 2004,
pp. 6-7). Logging within and near nest stands has been implicated in
nest site abandonment, although effects of such logging have varied
from nest area abandonment in some study areas to no effect on
productivity elsewhere (Crocker-Bedford 1990, pp. 263-266; Penteriani
and Faivre 2001, p. 213; Doyle and Mahon 2003, p. 39; Mahon and Doyle
2005, pp. 338-340, Doyle 2006, pp. 138-139). Clearcut logging generally
reduces prey populations (USFWS 2007, pp. 62-64), although, in some
cases, sooty grouse populations may increase temporarily following
logging (Hartwig 2003). Logging also impacts foraging habitat by
removing perches and hunting cover, creating openings and dense second-
growth stands that are avoided by goshawks (Iverson et al. 1996, p.
36).
``Productive forest'' is defined by the British Columbia Ministry
of Forest and Range as forest capable of producing trees large enough
to be commercially viable as timber (i.e., ``merchantable'') (Niemann
2006, p. 1). Such forests, when mature, provide suitable structure for
goshawk nesting and foraging. We, therefore, use the British Columbia
Ministry of Forest and Range's definition of, and statistics on,
productive forest as a measurable approximation of goshawk habitat.
Unless otherwise specified, discussions of mature, old-growth, and
second-growth forests below refer to productive forest only. Areas of
non-productive (or ``scrub'') forest of smaller trees (which are not
included in the cited forest statistics) may be used by goshawks for
foraging or other activities, but are generally not used for nesting
(Iverson et al. 1996, pp. 41-44).
Studies of goshawk habitat within and outside the range of the
Queen Charlotte subspecies suggest that landscape with at least 40 to
60 percent mature or old forest are favored for nesting (Patla 1997,
pp. 71-72; Finn et al. 2002, pp. 434-435, Doyle 2005, pp. 12-18). For
example, each of the 10 nesting territories known on the Queen
Charlotte Islands in 2004 contained at least 41 percent mature and old-
growth forest, although only 4 territories (each containing at least 60
percent mature and old-growth forest) were successful during the
preceding 3-year period (2002-2004)(Doyle 2005, p. 14). Reynolds et al.
(1992, p. 27) recommended at least 40 percent of goshawk home ranges be
maintained in mature or old forest cover in the southwest United
States, with another 20 percent in middle-aged forest cover. Given
these observations, we consider landscapes on the coastal islands with
less than 40 percent cover by mature and old-growth forest to be poor-
quality habitat, those with 40 to 60 percent mature and old-growth
forest moderate-quality habitat, and those with greater than 60 percent
mature and old-growth habitat high-quality habitat.
Goshawks may nest successfully in areas with lower proportions of
mature and old-growth forest where prey adapted to more open habitats
is available, or during years with high prey populations (Doyle 2006,
pp. 138-139; Doyle 2007, p. 2; Doyle and Mahon 2003, p. 1; Iverson et
al. 1996, p. 55; USFWS 2007, p. 36). Snowshoe hares (Lepus americanus),
an important prey species for the goshawk in some areas, are found
along edges and in open habitats on the mainland coast (Nagorsen 2002,
pp. 92-93), so lower proportions of mature and old-growth forest may be
suitable there, depending on availability of prey. Cottontail rabbits
(Syvilagus floridans), a potential prey species that occurs along edges
of open habitats, have recently been introduced on Vancouver Island
(Nagorsen 2002, p.
[[Page 56761]]
96), but they are restricted to the southern edge of the island, and
have not been documented in the goshawk's diet there.
No studies definitively establish the amount of mature and old-
growth forest required where prey adapted to more open habitats are
available, but we expect it to be lower than where such prey are not
available, and we expect it to depend largely on prey density, which
varies spatially (across the landscape) and temporally (from year to
year). Snowshoe hares likely add flexibility to goshawk diets on the
mainland, especially during the winter, and probably allow nesting in
some areas where it may not otherwise occur, although this effect is
probably negligible during years of low hare populations. We conclude,
based on the available information, that on average, landscapes on the
mainland with less than 30 percent mature and old-growth forest cover
are poor habitat, 30 to 50 percent mature and old-growth forest
moderate habitat, and greater than 50 percent mature and old-growth
forest high-quality habitat.
Productive forest (capable of producing commercially viable timber)
covers approximately 45 percent of the 42-million-acre (ac) (17-
million-hectare (ha)) Coast Forest Region delineated by the British
Columbia Ministry of Forests and Range, which approximates the range of
the Queen Charlotte goshawk in Canada (USFWS 2008, Table A-20).
Therefore, on average, habitat was probably only of moderate quality
for goshawks (30 to 50 percent mature and old growth) prior to wide-
scale timber harvest, although some areas would have been, and remain,
unsuitable (e.g., large alpine areas), while other areas had extensive
tracts of high-quality habitat before logging began.
Industrial-scale logging began in the coastal rainforests of
British Columbia in the early 1900s, peaked in the 1980s, and has
remained relatively high since then (USFWS 2007, pp. 89-90). By 2002,
timber harvest had converted approximately 5.2 million ac (2.1 million
ha) (28 percent) of the 19 million ac (7.6 million ha) of productive
forest in coastal British Columbia to second growth. This has reduced
mature and old forest cover to approximately 34 percent of the
landscape (USFWS 2008, Table A-20). This percentage translates, on
average, to poor-quality habitat on the islands (less than 40 percent
cover by mature and old-growth forest), and of moderate quality on the
mainland (30 to 50 percent mature and old-growth forest). Again,
naturally non-forested areas have always been unsuitable or poor-
quality habitat, and some areas likely still provide high-quality
habitat, but in general, habitat quality has declined and is probably
moderate-to-poor quality in many areas, due to timber harvest.
More than 100 new protected areas totaling approximately 3 million
ac (1.2 millon ha) were established on the British Columbia mainland
coast in 2006 (BCMAL 2006, p. 1). This was followed by a December 2007
land use agreement between the Province of British Columbia and the
Haida Nation, designating new protected areas totaling 628,000 ac
(254,000 ha) on the Queen Charlotte Islands (BCOP 2007, pp. 1-2).
Approximately 5.6 million ac (2.2 million ha) of the 42-million-ac (17-
million-ha) Coast Forest Region is now in protected status, where
timber harvest is not allowed. We estimate that protected areas include
approximately 2.9 million ac (1.2 million ha) of productive forest
(USFWS 2008, Table A-19). Most of this is likely old growth, although
statistics on forest age within the new protected areas are not
available.
Our status review in 2007 indicated that continued logging on the
coastal islands of British Columbia would convert another 1.2 million
ac (480,000 ha) (26 percent) of the remaining productive old-growth
forest to second growth over the next 50 years (USFWS 2007, Appendix A,
Tables A-9 and A-15). Future timber harvest in three of the seven
Forest Districts in the Coast Forest Region (North Coast, Central
Coast, and Queen Charlotte Islands Districts) will be planned using
``Ecosystem Based Management.'' Although the requirement is intended to
support a sustainable economy while protecting a healthy ecosystem, no
specifics have been released (BCMAL 2006, pp. 2-3; BCOP 2007, pp. 1-2,
BC 2008, p. 1). In the absence of any details about implementation of
this management scheme, we rely on data and projections currently
available based on existing management practices (summarized in USFWS
2007, pp. 82-101; USFWS 2008, Tables A-1 to A-20; NGRT 2008, pp. 6-23;
see also Southwest Center for Biological Diversity v. Babbitt, 939
F.Supp. 49 (D.D.C. 1996)). Future harvest levels are uncertain, but
additional conversion of old-growth forest to second growth is expected
to continue throughout the DPS.
For the purposes of evaluating threats and recovery strategies, the
NGRT has divided the British Columbia range of the Queen Charlotte
goshawk into four Conservation Regions: Haida Gwaii (Queen Charlotte
Islands), Vancouver Island, North Coast, and South Coast (NGRT 2008,
pp. 4-6). They reviewed the best-available scientific information and,
where data were unavailable, used expert opinion and data-derived
estimates (NGRT 2008, p. 16). They consider threats to the goshawk from
habitat loss and fragmentation to be low to moderate in the North Coast
region, moderate in the South Coast region, and moderate to high on the
Queen Charlotte Islands and Vancouver Island (NGRT 2008, pp. 16-17).
These conclusions are consistent with our understanding of the habitat
threats faced by goshawks in British Columbia. Thus, while some risk is
present throughout the DPS's range, habitat on the mainland coast,
particularly the North Coast, appears to be more secure than on the
islands.
In general, although new protected areas should help conserve some
of the remaining goshawk habitat, significant degradation has occurred,
and we expect continued decline in habitat quality within the range of
the British Columbia DPS as old-growth forest available for harvest is
converted to second growth. Ultimately, most of the harvested landscape
is likely to become low-quality or poor-quality habitat. Reductions in
prey populations and loss of perches and hunting cover are likely to
have increasingly negative effects on goshawks' ability to hunt prey
and feed their young. Based on the available information, we conclude
that habitat loss is likely to contribute substantially to loss of
long-term viability of Queen Charlotte goshawks in British Columbia.
Therefore, we conclude that the present or threatened destruction,
modification, or curtailment of habitat or range is a significant
threat to the British Columbia DPS of the subspecies.
Factor B. Overutilization for Commercial, Recreational, Scientific, or
Educational Purposes
In Canada, the laingi subspecies has been federally listed as
``Threatened'' under the Species at Risk Act since 2002 (51 Eliz. II,
Ch. 29). British Columbia has included the subspecies on its ``Red
List,'' indicating imperiled status, since 1994 (Cooper and Stevens
2000, pp. 3 and 14). In 2004, British Columbia designated the bird a
Schedule 1 Species at Risk, indicating vulnerability to forest
management and a need for protection beyond that provided by general
forest management regulations (BCMSRM 2002, pp. 1-2; Barisoff 2004, p.
2; USFWS 2007, pp. 11-12). Each of these designations provides some
protection from harvest. Birds may be taken illegally on occasion, but
we have no indication that such activity is common, or that it poses
any threat to the subspecies. We do not expect
[[Page 56762]]
overutilization for commercial, recreational, scientific, or
educational purposes to contribute to population declines or extinction
risk. The NRGT considers the threat of human persecution to be low to
none (NGRT 2008, pp. 17 and 21). We conclude that overutilization for
commercial, recreational, scientific, or educational purposes does not
now, or in the foreseeable future, pose a significant threat to the
British Columbia DPS of the Queen Charlotte goshawk.
Factor C. Disease or Predation
Disease and predation associated with Queen Charlotte goshawks are
not well documented, but small populations such as those on Vancouver
Island and the Queen Charlotte Islands can be vulnerable to diseases,
particularly when simultaneously stressed by other factors such as prey
shortages. The NGRT considers the threat from disease low, but has
expressed concern that emerging diseases such as West Nile virus may be
difficult to mitigate, if outbreaks occur (NGRT 2008, pp. 16 and 21).
Predation can also suppress small populations, leaving them
vulnerable to other population stress factors. Goshawk predators within
the British Columbia DPS include great horned owl (Bubo virginianus),
bald eagle (Haliaeetus leucocephalus), American marten (Martes
americana), wolverine (Gulo gulo), and black bear (Ursus americanus).
Raccoons (Procyon lotor), which could take eggs or nestlings, have also
been introduced on the Queen Charlotte Islands (Golumbia et al. 2003,
pp. 13-15). The NGRT considers predation risk low across the range of
the DPS (NGRT 2008, pp. 16-20).
No information suggests that disease or predation currently put
Queen Charlotte goshawks in danger of extinction in the British
Columbia DPS, but either disease or predation may contribute to
extinction risk in the foreseeable future (see Foreseeable Future
section below) if their effects are exacerbated by other population
stressors such as prey shortages, habitat limitations, or unfavorable
weather (which affect nesting effort). We conclude that disease and
predation do not currently put the Queen Charlotte goshawk at risk of
extinction, although there is moderate risk that either could affect
population viability in the foreseeable future.
Factor D. Inadequacy of Existing Regulatory Mechanisms
Direct Take: Throughout Canada, the Species at Risk Act protects
the Queen Charlotte goshawk from direct harm, harassment, and take on
Federal lands. Individuals, eggs, and occupied nests are protected on
all jurisdictions in British Columbia under the provincial Wildlife Act
(RSBC 1996, section 34). Possession and trade in the subspecies is
forbidden throughout Canada, as is destruction of nests. Based on the
available information, regulation of direct take appears to be adequate
throughout the DPS.
Habitat Protection: Two mechanisms exist to protect habitat under
the Federal Species at Risk Act in Canada: (1) Identification of
critical habitat, which may not be destroyed; and (2) conservation
agreements, which may be negotiated with any entity or individual.
Other mechanisms have been used by the Provincial government to protect
goshawk habitat (discussed below), but critical habitat has not yet
been formally designated under the Species at Risk Act (NGRT 2008, p.
31).
The Species at Risk Act requires development of a recovery
strategy, which identifies the scientific framework for recovery. The
NGRT, which includes experts from Provincial and Federal (U.S. and
Canadian) government agencies, private consultants, non-government
organizations, industry, and First Nations, has produced a draft
recovery strategy summarizing natural history, threats, knowledge gaps,
and recovery approach (NGRT 2008). A recovery action plan, to define
and guide implementation of the recovery strategy, is expected within 2
years after the recovery strategy is finalized (NGRT 2008, pp. i and
34).
The recovery strategy identifies many legal mechanisms for
protecting habitat at various scales. Land use planning is perhaps the
most broad-scale method used by the British Columbia Provincial
Government for establishing protected areas and limits on development
to conserve biodiversity across the Province. Approximately 13 percent
of the landscape across coastal British Columbia is protected from
logging in various parks and reserves. These reserves average
approximately 50 percent cover by productive forest (USFWS 2008, Table
A-23), so on average they appear to provide moderate- to high-quality
habitat. Special management zones, where timber harvest is allowed but
non-timber values such as wildlife and recreation are given additional
consideration, are also designated in some areas (BC 2000, p. 30).
Logging on Crown (Provincial) lands is regulated by the Forest and
Range Practices Act. This statute and its companion regulations set
objectives for many resources, and require timber harvest plans
describing how each objective will be met. Integrated with the Forest
and Range Practices Regulations is the Identified Wildlife Management
Strategy (IWM Strategy), which was developed by the British Columbia
Government to provide additional protection for species requiring
specific measures beyond the ``coarse filter'' system of protected
areas and the various regulations governing timber harvest generally.
The IWM Strategy provides for establishment of Wildlife Habitat Areas
around known goshawk nests, and allows prescription of management
measures within those areas (BCMWLAP 2004, pp. 1-4). Where nests are
identified, Wildlife Habitat Areas are proposed, usually by Provincial
biologists, although anyone may make a proposal. The proposed Area is
reviewed and may be modified by the Ministry of Environment, comments
are solicited from affected parties, a Timber Supply Impact Analysis is
conducted, the proposal is reviewed by a Provincial Committee, and a
final decision is made by the Ministry of Environment (BCMWLAP 2004,
pp. 4-10). The final decision may reflect compromises intended to
reduce impacts on timber operators or others.
Once a Wildlife Habitat Area is designated for goshawks, timber
harvest is not allowed in a core area of approximately 500 ac (200 ha)
to protect the active nest, alternate nests, and post-fledging habitat.
A management plan must be developed for timber harvesting and road
construction in the surrounding management zone of about 5,000 ac
(2,000 ha) to protect foraging habitat. Non-binding recommendations
have been developed to help guide these management plans (McClaren
2004, pp. 10-11). To date, at least 28 Wildlife Habitat Areas covering
36,470 ac (14,765 ha) have been designated for laingi goshawks in
British Columbia (USFWS 2007, p. 113).
Provincial policy limits the amount of land that may be protected
under the IWM Strategy (in Wildlife Habitat Areas or other such
mechanisms) to one percent of the short-term timber supply in each
Forest District, for all Identified Wildlife species combined. This
limitation may be waived with adequate justification, and does not have
legal force of law, but is considered a goal of government (BCMWLAP
2004, p. 4; FPB 2004, pp. 7-8). Because the one percent cap is on
impacts to the ``short-term'' timber supply, rather than the long-term
supply, calculations must be based on mature forest stands. In the
South Island Forest District (which covers southern Vancouver Island),
less than one-third
[[Page 56763]]
of the productive forest is at or near economic maturity, so Wildlife
Habitat Areas and other such retentions for Identified Wildlife are
limited to approximately one-third of 1 percent of the productive
forest in the Timber Harvesting Land Base. Similar situations exist
wherever past harvest is extensive, yet these areas have the greatest
need for conservation (FPB 2004, pp. 7-8).
Another potential limitation of the one percent cap on goshawk
conservation is apparent in areas with high numbers of other at-risk
species and continuing threats to those species (Wood and Flahr 2004,
pp. 394-395). Southern Vancouver Island, for example, is a biodiversity
``hot spot,'' with a large number of rare and endemic species (Scudder
2003). Some of these species have habitat needs that differ from those
of the goshawk, yet their legitimate conservation needs must be
accommodated along with the goshawk within the one percent limit. In
the South Island Forest District, Wildlife Habitat Areas are
approaching, and may have already exceeded, the one percent cap (Wood
et al. 2003, p. 53).
In 2004, the British Columbia Ministry of Sustainable Resource
Management established ``Provincial Non-Spatial Old Growth Objectives''
that must be addressed in Forest Stewardship Plans (Abbott 2004, pp. 1-
6). The order established ``Landscape Units'' and old growth forest
retention objectives for each of those units. Individual Landscape
Units are assigned to low, intermediate, or high biodiversity emphasis,
with lower percentages of old-growth retention identified for lower-
emphasis units. The exact amount of old growth that must be retained
depends on the forest type (biogeoclimatic zone) and the ``natural
disturbance regime'' identified for each biogeoclimatic zone variant.
Within the Coastal Western Hemlock (Tsuga heterophylla) Zone, old
growth retention objectives range from 9 to 13 percent; in the Mountain
Hemlock (T. mertensiana) Zone, objectives range from 19 to 28 percent;
and in the Coastal Douglas-fir (Pseudotsuga menziesii) Zone, 9 to 13
percent. The objectives are termed ``non-spatial'' because they
describe amounts but not specific areas to be retained, unlike other
orders that establish protection of specified areas. In order to meet
the non-spatial, old-growth objectives, tenure-holders and Timber
Supply Area managers can rely on existing protected areas such as
Wildlife Habitat Areas, riparian reserves, inoperable lands, and other
designations that result in retention of old-growth stands.
The Province of British Columbia has made significant progress in
implementation of several elements of their conservation program for
goshawks, as described above. A draft recovery strategy has been
released. Several of the actions identified in the draft strategy have
begun; others are likely to be implemented once the Recovery
Implementation Group completes an action plan (NGRT 2008, pp. 21-32).
It is likely that the identified strategies will assist in long-term
conservation of the subspecies in British Columbia. The strategy,
however, is currently in draft form with an action plan not anticipated
for 2 years (NGRT 2008, p. 34).
In summary, the Province's Protected Area Strategy protects 13
percent of the land area, and 13 percent of the productive forest, in
parks and other reserves within the range of the British Columbia DPS.
We believe that this is inadequate, by itself, to support a viable
population of goshawks because much of the protected land is not
forested, and because goshawks are dispersed at low densities across a
vast landscape and are likely to need more than 13 percent of the
landscape in suitable condition (specifically, mature and old-growth
forest). Management of timber lands within the province continues to
evolve with increasing emphasis on conservation of non-timber values
associated with forests, including goshawks. However, the Province's
Identified Wildlife Management Strategy, which allows for designation
and protection of Wildlife Habitat Areas around goshawk nests, is
limited by a policy-level cap of one percent of the short-term timber
supply. We acknowledge that much work is underway in the Province to
address the threats and conservation needs of Queen Charlotte goshawks.
Because much of the regulatory framework is relatively new, some key
elements of the recovery effort have not yet been fully developed or
implemented, so it is difficult at this time to assess their potential
effectiveness (see Conservation Efforts, below).
We conclude that continued development and implementation of
regulatory mechanisms will be required to minimize the risk of
extinction for the British Columbia DPS of the Queen Charlotte goshawk.
Existing regulatory mechanisms do not appear to adequately reduce the
threat posed to goshawk habitat from timber harvest at this time.
Factor E. Other Natural or Manmade Factors Affecting the Species'
Continued Existence
We are not aware of current population-level threats to Queen
Charlotte goshawks due to competition for either prey or nest sites.
The NGRT rates this threat as low across the DPS (NGRT 2008, p. 16).
Competition among herbivores has been implicated in grouse declines on
the Queen Charlotte Islands, however, where introduced deer have
reportedly overbrowsed blueberries and other important grouse foods,
resulting in grouse population declines (Golumbia et al. 2003, pp. 10-
11; Doyle 2004, pp. 15-16). This has probably reduced goshawk nesting
effort (number of pairs attempting to nest) on the Queen Charlotte
Islands during periods of low squirrel density, when goshawks might
otherwise have nested if grouse had been more abundant. Predation on
sooty grouse eggs and nestlings by introduced raccoons may also be a
factor contributing to grouse population declines on the Queen
Charlotte Islands (Golumbia et al. 2003, pp. 13-15).
Threats due to low prey diversity are considered low on the
mainland, moderate on Vancouver Island, and high on the Queen Charlotte
Islands (NGRT 2008, pp. 16 and 18) (see previous discussion under
Factor A).
We know of no contaminants that pose current or potential future
threats to goshawks within the British Columbia DPS.
Natural disasters such as windstorms, landslides, avalanches,
earthquakes, tsunamis, and volcanic eruptions could affect localized
areas within the British Columbia DPS, but are not believed to pose
population-level threats, either now or in the foreseeable future.
Large, landscape-altering forest fires, insect infestations, or tree
diseases could pose population-level threats to Queen Charlotte
goshawks in the British Columbia DPS if they affect major portions of
either Vancouver Island or the Queen Charlotte Islands, both of which
support contiguous blocks of forest habitat on one or two large
islands, rather than on many islands as in the southeast Alaska DPS.
Global climate change could increase the frequency and severity of
large fires, forest pests, or forest diseases (Bachelet et al. 2005,
pp. 2244-2248), but we do not know how likely such events might be.
Increases in forest cover, as cool-adapted species invade alpine areas
and plant communities generally shift northward (Hamann and Wang 2006,
pp. 2780-2782), could increase the amount of habitat available to
goshawks,
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but such gains could be offset by loss of forest cover elsewhere. We
conclude that climate change is likely to have mixed effects on
goshawks. The possibility exists that landscape-level changes due to
climate change could negatively affect the British Columbia DPS of the
Queen Charlotte goshawk, but these threats do not currently place the
DPS in danger of extinction, nor do we expect them to in the
foreseeable future.
The small goshawk population on the Queen Charlotte Islands appears
to be genetically distinct from goshawks elsewhere and may be
genetically isolated (Gust et al. 2003, p. 22; Talbot et al. 2005, pp.
2-3; Talbot 2006, p. 1). Isolated populations such as the one on the
Queen Charlotte Islands are typically at greater risk of extinction or
genetic problems such as inbreeding depression and loss of genetic
diversity, particularly where populations are small (Lande 1988, pp.
1456-1457; Frankham et al. 2002, pp. 312-317). Inbreeding depression is
a reduction in viability and fecundity that occurs as large populations
decline and rapid inbreeding produces increased prevalence of harmful
genes that are typically rare in larger populations (Lande 1988, p.
1456). Loss of genetic diversity occurs as populations are reduced, and
can diminish future adaptability to a changing environment. The NGRT
considers threats from genetic isolation to be high for the Queen
Charlotte Islands, and low to none elsewhere in British Columbia (NGRT
2008, pp. 16, 18-19). We concur with this assessment.
Hybridization can be a threat when related species or subspecies
interbreed, diluting the genetics of the smaller population.
Populations on Vancouver Island apparently interbreed with the
subspecies of goshawk that inhabits much of mainland North America,
Accipiter gentilis atricapillus (Gust et al. 2003, p. 22; Talbot et al.
2005, pp. 2-3; Talbot 2006, p. 1). This seems likely given the
proximity of Vancouver Island to the mainland. On the mainland, the
Queen Charlotte goshawk (A. g. laingi) inhabits wet coastal forests,
but likely interbreeds with the interior subspecies (A. g.
atricapillus) within the drier coastal western hemlock zones between
coastal and interior forests. The NGRT considers this a transition zone
between the two subspecies, but concludes, based on limited sampling,
that ``Vancouver Island and (coastal) mainland B.C. populations (of A.
g. laingi) do not appear to be interbreeding with interior B.C.
populations (of A. g. atricapillus) (NGRT 2008, pp. 3, 6, and 18). We
have no information indicating that A. g. atricapillus goshawks are
expanding into the range of the Queen Charlotte goshawk, and we
consider the transition zones between the subspecies to be stable. We
therefore conclude that hybridization does not pose a significant
threat to the continued survival of the Queen Charlotte goshawk, now or
in the foreseeable future.
The breeding population across the British Columbia DPS appears to
be about 352 to 374 pairs (NGRT 2008, p. 8). Small populations such as
this are at greater risk of extinction than larger populations from
environmental stochasticity (random or otherwise unpredictable events
such as disease epidemics, prey population crashes, or environmental
catastrophes), which can reduce the population to a density at which it
is vulnerable to demographic stochasticity (fluctuations in birth and
mortality rates) (Engen et al. 2001, p. 794; Adler and Drake, 2008, p.
192).
We conclude that the British Columbia DPS of the Queen Charlotte
goshawk is not currently in danger of extinction due to other natural
and manmade factors (Factor E) such as competition, contaminants,
natural disasters, climate change, or genetic problems resulting from
hybridization or isolation. However, due to its small population size,
this DPS is likely to be vulnerable to prey fluctuations, hybridization
(on Vancouver Island), or inbreeding depression (on the Queen Charlotte
Islands) in the foreseeable future. Each of these potential threats
would likely become more important if habitat modification causes
population declines, exacerbating the impact of the threats.
Conservation Efforts
Section 4(b)(1)(A) of the Act requires us to determine if a species
should be listed ``after taking into account those efforts, if any,
being made...to protect such species, whether by predator control,
protection of habitat and food supply, or other conservation
practices.'' We consider existing regulatory mechanisms and other
efforts underway in British Columbia to conserve goshawks and goshawk
habitat in our analysis of the five listing factors, above. In many
cases, conservation actions are planned, but have not yet been
implemented. In other cases, conservation efforts may be underway, but
their effectiveness is uncertain. To help guide evaluation of such
efforts, the Service published a ``Policy for Evaluation of
Conservation Efforts When Making Listing Decisions'' (PECE Policy) (68
FR 15100, March 28, 2003). The PECE Policy ``applies to those
formalized conservation efforts that have not yet been implemented or
have been implemented, but have not yet demonstrated whether they are
effective at the time of a listing decision.'' For efforts meeting
these criteria, the policy directs us to consider (1) the certainty
that a conservation effort will be implemented, and (2) the certainty
that the effort will be effective.
British Columbia's draft Recovery Strategy identifies several broad
strategies and recommended approaches to address threats to the
goshawk, with specific actions listed to address each approach (NGRT
2008, pp. 26-30). Because the recovery strategy itself is draft, it
does not meet the PECE Policy's definition of a formalized conservation
effort (68 FR 15104, SUPPLEMENTARY INFORMATION, Response 17). Many of
the actions listed in the draft recovery strategy, however, have
already been implemented and warrant evaluation as formalized
conservation efforts. We also evaluate actions identified in the draft
recovery strategy that have not yet been implemented, because we
believe that the NGRT intends to pursue them.
Among the actions that have not yet been implemented are
predictions of habitat changes resulting from climate change,
monitoring and modeling of West Nile Virus impacts, and monitoring of
edge-adapted competitors and predators. The draft Recovery Strategy is
a broad-scale document that does not provide details on who would be
responsible for implementing the identified actions, the source and
security of funding, legal authorities, procedural and legal
requirements (permits, authorizations and permissions, etc.), and
volunteer (e.g., landowner or timber tenure holder) participation
necessary to implement the actions, as required for us to conclude with
a high level of certainty that the actions will be implemented (PECE
Policy, 68 FR 15114-15115).
Among the actions identified in the draft strategy that have
already begun, the most highly developed is protection of habitat using
existing authorities and mechanisms. These are described in NGRT (2008)
Appendix 1, and are evaluated above under Factor D (inadequacy of
existing regulatory mechanisms). We consider habitat protection an
effective strategy, but cannot conclude that implementation under
existing mechanisms adequately removes the threat posed to the Queen
Charlotte goshawk from habitat loss.
Other actions listed in the draft Recovery Strategy have been
implemented (or have begun and are ongoing), but have not yet been
proven effective. Included in this category are:
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Development of general wildlife measures to ensure
sufficient foraging habitat outside Wildlife Habitat Areas,
Landscape modeling to identify habitat availability,
Research and implementation of silviculture methods to
promote prey populations,
Development and implementation of management plans for
introduced species,
Development and implementation of outreach and education
for landowners and resource managers,
Effectiveness monitoring of habitat management,
Development and use of spatially explicit population
models and genetic samples to define population and distribution
objectives,
Use of habitat conservation tools to conserve and recover
populations in each conservation region, and
Identification and monitoring of prey populations.
The PECE Policy lists six criteria necessary to establish that a
conservation effort will be effective in adequately reducing threats to
a level that listing a species as threatened or endangered is not
necessary. These criteria include (1) a description of the threats
addressed by the conservation effort, (2) explicit, incremental
objectives for the conservation effort and dates for achieving the
objectives, (3) the steps necessary to implement the conservation
effort, (4) quantifiable measures to demonstrate progress toward, and
achievement of, objectives, (5) provisions for monitoring and reporting
progress on implementation and effectiveness, and (6) incorporation of
adaptive management principles (68 FR 15115). The draft Recovery
Strategy is a broad-level planning document that describes threats to
the goshawk and provides recommendations for addressing those threats.
It lacks detail on implementation of the recommended actions. A
recovery action plan, which will likely provide much of the detail
described in the PECE Policy, is expected within 2 years of finalizing
the draft Recovery Strategy. Meanwhile, we are not aware of currently
available documents that provide the information (criteria 1 through 6,
immediately above) necessary to ascertain with a high level of
certainty that the actions will be effective.
A major conservation effort recently announced by the Province of
British Columbia is Ecosystem Based Management for lands managed for
multiple uses in the Central Coast, North Coast, and Haida Gwaii
regions (BCMAL 2006, pp. 1-3; BCOP 2007, pp. 1-2). Ecosystem Based
Management ``is a new adaptive approach to managing human activities
that ensures the coexistence of healthy ecosystems and communities. The
intent is to support a sustainable economy while protecting a healthy
ecosystem'' (BCMAL 2006, p. 2). Key elements include establishment of
protected areas; higher standards for key environmental values; use of
traditional, local, and scientific knowledge to develop management
targets; recognition of Aboriginal and other local interests in land
use planning and management; and promotion of stability, certainty, and
long-term resource use (BCMAL 2006, p. 2).
The British Columbia government has moved to implement Ecosystem
Based Management on the mainland coast and, more recently, the Queen
Charlotte Islands. Land use agreements have been reached with various
First Nations, and efforts are underway to identify lands for
protection. We have a high level of certainty that Ecosystem Based
management will be implemented in some form, although details of which
lands will be protected, and how timber harvest will be regulated, are
not yet available. We expect that protection of additional areas will
result in reduced logging overall, although the rate of logging on the
remaining lands is not known. We therefore cannot be sufficiently
certain that the program will reduce threats to goshawks to a level
that listing as threatened or endangered is no longer necessary.
Foreseeable Future
The term ``threatened species'' means any species (or subspecies
or, for vertebrates, distinct population segments) that is likely to
become an endangered species within the foreseeable future throughout
all or a significant portion of its range. The Act does not define the
term ``foreseeable future.'' However, in a January 16, 2009, memorandum
addressed to the Acting Director of the U.S. Fish and Wildlife Service,
the Office of the Solicitor, Department of the Interior, concluded, ``.
. . as used in the ESA, Congress intended the term `foreseeable future'
to describe the extent to which the Secretary can reasonably rely on
predictions about the future in making determinations about the future
conservation status of the species.'' In a footnote, the memorandum
states, ``In this memorandum, references to `reliable predictions' are
not meant to refer to reliability in a statistical sense. Rather, I use
the words ``rely'' and ``reliable'' according to their common, non-
technical meanings in ordinary usage. Thus, for the purposes of this
memorandum, a prediction is reliable if it is reasonable to depend upon
it in making decisions'' (M-37021, January 16, 2009).
We assess foreseeable future in terms of the threats to the species
in question. Threats to the British Columbia DPS of the Queen Charlotte
goshawk are primarily related to habitat loss. Other threats are likely
to be significant only if populations decline to critically low levels.
We expect the amount of suitable goshawk habitat to continue to decline
until all the old growth available for harvest has been converted to
second growth. At that time, we expect the amount of habitat to
stabilize, with less habitat than is available today. Thereafter,
logging will be limited to the second growth, which we expect will be
harvested on a sustained-yield basis. Because second-growth stands
provide suitable goshawk habitat for only the final 10 to 20 percent of
each timber harvest rotation (USFWS 2007, pp. 62-67), we estimate that
approximately 15 percent of the second growth will be mature, at any
given time, and will provide suitable nesting and foraging habitat,
while 85 percent will be younger, and provide largely unsuitable
habitat (USFWS 2007, pp. 99 and 131). While we recognize that ongoing
changes in management regimes, market conditions and technology may
affect the intensity and pace of habitat loss, we consider logging
projections provided by the BC Ministry of Forests and Range, and by
the individual Tree Farm License holders, to be the best information
available at this time for evaluating habitat trends and threats into
the future. In our review, we used such projections to estimate how
much old-growth and mature second-growth forest would be available
after all available old growth has been converted to second growth,
which we expect to occur in approximately 50 years (USFWS 2007, pp. 85-
91 and pp. 103-104; USFWS 2008, Tables A-1 and A-10 to A17).
Wildlife populations typically continue to decline for several
generations after habitat loss has occurred, as the populations reach
equilibrium with their habitat and competitors (Tilman et al. 1994, pp.
65-66). Therefore, extinction may occur many years after habitat loss
has ceased. We do not know precisely how long it will take before the
population stabilizes or goes extinct following habitat loss, but we do
expect the goshawk population to continue to decline for several
generations after habitat loss peaks in about 50 years. We therefore
define foreseeable future for the British Columbia DPS as approximately
50 years plus a period of
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up to several generations for the population to adjust.
Conclusion
Our analysis of threats suggests that as additional forest is
logged, habitat quality will continue to decline for the British
Columbia DPS of the Queen Charlotte goshawk and its prey. With reduced
prey populations, and less favorable habitats in which to hunt, we
expect that Queen Charlotte goshawks within the British Columbia DPS
would have reduced nesting success. Ultimately, this is expected to
result in even smaller populations than currently occur (352 to 374
breeding pairs). Smaller p