Endangered and Threatened Wildlife and Plants; Annual Notice of Findings on Resubmitted Petitions for Foreign Species; Annual Description of Progress on Listing Actions, 24603-24632 [2013-09504]
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Part V
Department of the Interior
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Fish and Wildlife Service
50 CFR Part 17
Endangered and Threatened Wildlife and Plants; Annual Notice of Findings
on Resubmitted Petitions for Foreign Species; Annual Description of
Progress on Listing Actions; Proposed Rule
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS–R9–ES–2012–0044; 450
003 0115]
Endangered and Threatened Wildlife
and Plants; Annual Notice of Findings
on Resubmitted Petitions for Foreign
Species; Annual Description of
Progress on Listing Actions
Fish and Wildlife Service,
Interior.
ACTION: Notice of review.
AGENCY:
In this Annual Notice of
Review (ANOR) of foreign species, we
present an updated list of plant and
animal species foreign to the United
States that we regard as candidates for
addition to the Lists of Endangered and
Threatened Wildlife and Plants under
the Endangered Species Act of 1973, as
amended. This review ensures that we
focus conservation efforts on those
species at greatest risk first. Overall, this
ANOR recognizes one new candidate
and removes one species from candidate
status. The current number of foreign
species that are candidates for listing is
20. Based on our current review, we
find that 20 species continue to warrant
listing, but their listing remains
precluded by higher priority proposals
to determine whether any species is an
endangered species or a threatened
species.
SUMMARY:
We will accept information on
these resubmitted petition findings at
any time.
ADDRESSES: This notice is available on
the Internet at https://
www.regulations.gov. Please submit any
new information, materials, comments,
or questions of a general nature on this
notice to the Arlington, VA, address
listed in the FOR FURTHER INFORMATION
CONTACT section below.
FOR FURTHER INFORMATION CONTACT:
Chief, Branch of Foreign Species,
Endangered Species Program, U.S. Fish
and Wildlife Service, 4401 North Fairfax
Drive, Room 420, Arlington, VA 22203;
telephone 703–358–2171. If you use a
telecommunications device for the deaf
(TDD), call the Federal Information
Relay Service (FIRS) at 800–877–8339.
SUPPLEMENTARY INFORMATION:
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DATES:
Executive Summary
In this Annual Notice of Review
(ANOR) of foreign species, we present
an updated list of plant and animal
species foreign to the United States that
we regard as candidates for addition to
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the Lists of Endangered and Threatened
Wildlife and Plants under the
Endangered Species Act of 1973, as
amended. When, in response to a
petition, we find that listing a species is
warranted but precluded by higher
priority proposals to determine whether
any species is an endangered species or
a threatened species, we must review
the status of the species each year until
we publish a proposed rule or make a
determination that listing is not
warranted. These subsequent status
reviews and the accompanying 12month findings are referred to as
‘‘resubmitted’’ petition findings.
Since publication of the previous
ANOR on May 3, 2011 (76 FR 25150),
we reviewed the available information
on candidate species to ensure that
listing is warranted for each species and
reevaluated the relative listing priority
number (LPN) assigned to each species.
We also evaluated the need to
emergency list any of these species,
particularly species with high listing
priority numbers (i.e., species with
LPNs of 1, 2, or 3). This review ensures
that we focus conservation efforts on
those species at greatest risk first. In
addition to reviewing foreign candidate
species since publication of the last
ANOR, we have worked on numerous
findings in response to petitions to list
species and on proposed and final
determinations for rules to list, delist, or
downlist species under the Act. Some of
these findings and determinations have
been completed and published in the
Federal Register, while work on others
is still under way (see Preclusion and
Expeditious Progress section, below, for
details).
Overall, this ANOR recognizes one
new candidate and removes one species
from candidate status. The current
number of foreign species that are
candidates for listing is 20. Based on our
current review, we find that 20 species
continue to warrant listing, but their
listing remains precluded by higher
priority proposals to determine whether
any species is an endangered species or
a threatened species.
Request for Information
This ANOR summarizes the status
and threats that we evaluated in order
to determine that species qualify as
candidates and to assign an LPN to each
species or to determine that species
should be removed from candidate
status. This document also describes our
progress in revising the Lists of
Endangered and Threatened Wildlife
and Plants (Lists) during the period May
3, 2011, through September 30, 2012.
With this ANOR, we request
additional information for the 20 taxa
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whose listings are warranted but
precluded by higher priority proposals
to determine whether any species is an
endangered or threatened species. We
will consider this information in
preparing listing documents and future
resubmitted petition findings for these
20 taxa. This information will also help
us to monitor the status of the taxa and
conserve them. We request the
submission of any further information
on the species in this notice as soon as
possible, or whenever it becomes
available. We especially seek
information:
(1) Indicating that we should remove
a taxon from consideration for listing;
(2) Documenting threats to any of the
included taxa;
(3) Describing the immediacy or
magnitude of threats facing these taxa;
(4) Identifying taxonomic or
nomenclatural changes for any of the
taxa; or
(5) Noting any mistakes, such as
errors in the indicated historic ranges.
You may submit your information
concerning this notice in general or for
any of the species included in this
notice by one of the methods listed in
the ADDRESSES section.
Background
The Endangered Species Act of 1973,
as amended (Act) (16 U.S.C. 1531 et
seq.), provides two mechanisms for
considering species for listing. First, we,
upon our own initiative, can identify
and propose for listing those species
that are endangered or threatened based
on the factors contained in section
4(a)(1) of the Act. We implement this
mechanism through the candidate
program. Candidate taxa are those taxa
for which we have sufficient
information on file relating to biological
vulnerability and threats to support a
proposal to list the taxa as endangered
or threatened, but for which preparation
and publication of a proposed rule is
precluded by higher priority proposals
to determine whether any species is an
endangered species or a threatened
species. The second mechanism for
considering species for listing is when
the public petitions us to add species to
the Lists of Endangered and Threatened
Wildlife and Plants (Lists). Nineteen of
these species covered by this notice
were assessed through the petition
process.
Under section 4(b)(3)(A) of the Act,
when we receive a listing petition we
must determine within 90 days, to the
maximum extent practicable, whether
the petition presents substantial
scientific or commercial information
indicating that the petitioned action
may be warranted (90-day finding). If
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we make a positive 90-day finding, we
are required to promptly commence a
review of the status of the species. Using
the information from the status review,
in accordance with section 4(b)(3)(B) of
the Act, we must make one of three
findings within 12 months of the receipt
of the petition (12-month finding). The
first possible 12-month finding is that
listing is not warranted, in which case
we need not take any further action on
the petition. The second possibility is
that we may find that listing is
warranted, in which case we must
promptly publish a proposed rule to list
the species. Once we publish a
proposed rule for a species, sections
4(b)(5) and 4(b)(6) of the Act govern
further procedures, regardless of
whether or not we issued the proposal
in response to the petition. The third
possibility is that we may find that
listing is warranted but precluded. A
warranted-but-precluded finding on a
petition to list means that listing is
warranted, but that the immediate
proposal and timely promulgation of a
final regulation is precluded by higher
priority listing actions. In making a
warranted-but-precluded finding under
the Act, the Service must demonstrate
that expeditious progress is being made
to add and remove species from the
Lists (See Preclusion and Expeditious
Progress section).
In accordance with section
4(b)(3)(C)(i) of the Act, when, in
response to a petition, we find that
listing a species is warranted but
precluded, we must make a new 12month finding annually until we
publish a proposed rule or make a
determination that listing is not
warranted. These subsequent 12-month
findings are referred to as ‘‘resubmitted’’
petition findings. This notice contains
our resubmitted petition findings for
foreign species previously described in
the Notice of Review published May 3,
2011 (76 FR 25150).
We maintain this list of candidates for
a variety of reasons: To notify the public
that these species are facing threats to
their survival; to provide advance
knowledge of potential listings; to
provide information that may stimulate
and guide conservation efforts that will
remove or reduce threats to these
species and possibly make listing
unnecessary; to request input from
interested parties to help us identify
those candidate species that may not
require protection under the Act or
additional species that may require the
Act’s protections; and to request
necessary information for setting
priorities for preparing listing proposals.
We strongly encourage collaborative
conservation efforts for candidate
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species, and offer technical and
financial assistance to facilitate such
efforts. For additional information
regarding such assistance, see FOR
FURTHER INFORMATION CONTACT.
On September 21, 1983, we published
guidance for assigning a listing priority
number (LPN) for each candidate
species (48 FR 43098). Using this
guidance, we assign each candidate an
LPN of 1 to 12, depending on the
magnitude of threats, immediacy of
threats, and taxonomic status; the lower
the LPN, the higher the listing priority
(that is, a species with an LPN of 1
would have the highest listing priority).
Guidelines for such a priority-ranking
guidance system are required under
section 4(h)(3) of the Act (15 U.S.C.
1533(h)(3)). As explained below, in
using this system we first categorize
based on the magnitude of the threat(s),
then by the immediacy of the threat(s),
and finally by taxonomic status.
Under this priority-ranking system,
magnitude of threat can be either ‘‘high’’
or ‘‘moderate to low.’’ This criterion
helps ensure that the species facing the
greatest threats to their continued
existence receive the highest listing
priority. It is important to recognize that
all candidate species face threats to their
continued existence, so the magnitude
of threats is in relative terms. When
evaluating the magnitude of the threat(s)
facing the species, we consider
information such as: the number of
populations and/or extent of range of
the species affected by the threat(s); the
biological significance of the affected
population(s), the life-history
characteristics of the species and its
current abundance and distribution; and
whether the threats affect the species in
only a portion of its range.
As used in our priority ranking
system, immediacy of threat is
categorized as either ‘‘imminent’’ or
‘‘nonimminent.’’ It is not a measure of
how quickly the species is likely to
become extinct if the threats are not
addressed; rather, immediacy is based
on when the threats will begin. If a
threat is currently occurring or likely to
occur in the very near future, we
classify the threat as imminent.
Determining the immediacy of threats
helps ensure that species facing actual,
identifiable threats are given priority for
listing proposals over those for which
threats are only potential or species that
are intrinsically vulnerable to certain
types of threats, but are not known to be
presently facing such threats.
Our priority-ranking system has three
categories for taxonomic status: species
that are the sole members of a genus;
full species (in genera that have more
than one species); and subspecies and
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distinct population segments of
vertebrate species (DPS). In summary,
the LPN ranking system provides a basis
for making decisions about the relative
priority for preparing a proposed rule to
list a given species. Each species
included in this notice is one for which
we have sufficient information to
prepare a proposed rule to list, because
it is in danger of extinction or likely to
become endangered within the
foreseeable future throughout all or a
significant portion of its range.
For more information on the process
and standards used in assigning LPNs,
a copy of the guidance is available on
our Web site at: https://www.fws.gov/
endangered/esa-library/pdf/48fr43098–
43105.pdf. For more information on the
LPN assigned to a particular species, the
species assessment for each candidate
contains the LPN and a rationale for the
determination of the magnitude and
imminence of threat(s) and assignment
of the LPN; that information is
presented in this ANOR.
Previous Notices
This revised notice supersedes all
previous annual notices of review for
foreign species. The species discussed
in this notice are in part the result of
three separate petitions submitted to the
U.S. Fish and Wildlife Service (Service)
to list a number of foreign bird and
butterfly species as endangered or
threatened under the Act. We received
petitions to list foreign bird species on
November 24, 1980, and May 6, 1991
(46 FR 26464, May 12, 1981; and 56 FR
65207, December 16, 1991,
respectively). On January 10, 1994, we
received a petition to list seven butterfly
species as endangered or threatened (59
FR 24117; May 10, 1994).
We took several actions on these
petitions. Our most recent review of
petition findings was published on May
3, 2011 (76 FR 25150). Since our last
review of petition findings in May 2011,
we have issued a proposed rule to list
one species previously included in the
ANOR (see the Preclusion and
Expeditious Progress section for
additional listing actions that were not
related to this notice). On January 10,
2013, we published a proposed rule to
list the blue throated macaw under the
Act (78 FR 2239).
Findings on Resubmitted Petitions
This notice describes our resubmitted
petition findings for 19 foreign species
for which we had previously found
listing to be warranted but precluded.
We have considered all of the new
information that we have obtained since
the previous finding, and we have
reviewed in accordance with our Listing
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Priority Guidance the LPN of each taxon
for which proposed listing continues to
be warranted but precluded. Based on
our review of the best available
scientific and commercial information,
with this ANOR, we have changed the
LPN for two candidate species.
New Candidate Species
Below we present a summary of one
new species Colorado delta clam
(Mulinia coloradoensis), which is an
addition to this year’s ANOR. Based
upon our own initiative, we find that we
have sufficient information on its
biological vulnerability and threats to
support a proposal to list it as
endangered or threatened, but
preparation and publication of a
proposal is precluded by higher priority
listing actions (i.e., it met our definition
of a candidate species).
As a result of our review, we find that
warranted-but-precluded findings is
appropriate for the below 20 species,
including 1 new candidate species. We
emphasize that we are not proposing
these species for listing, but we do
anticipate developing and publishing
proposed listing rules for these species
in the future, with an objective of
making expeditious progress in
addressing all 20 of these foreign
species within a reasonable timeframe.
Table 1 provides a summary of all
updated determinations of the 20 taxa in
our review. All taxa in Table 1 of this
notice are ones for which we find that
listing is warranted but precluded and
are referred to as ‘‘candidates’’ under
the Act. The column labeled ‘‘Priority’’
indicates the LPN. Following the
scientific name of each taxon (third
column) is the family designation
(fourth column) and the common name,
if one exists (fifth column). The sixth
column provides the known historic
range for the taxon. The avian species in
Table 1 are listed taxonomically.
TABLE 1—SPECIES IN 2012 ANNUAL NOTICE OF REVIEW
[C = listing is warranted but precluded]
Status
Scientific name
Category
Family
Common name
Historic range
Priority
Birds
C ............
2 .............
Pauxi unicornis ........................
Craciidae .................................
C ............
C ............
C ............
2 .............
8 .............
8 .............
Rallus semiplumbeus ..............
Porphyrio hochstetteri .............
Haematopus chathamensis ....
Rallidae ...................................
Rallidae ...................................
Haematopodidae .....................
southern helmeted
curassow.
Bogota rail ......................
takahe .............................
Chatham oystercatcher ..
Bolivia, Peru.
C ............
C ............
C ............
8 .............
8 .............
8 .............
Cyanoramphus malherbi .........
Eunymphicus uvaeensis .........
Dryocopus galeatus ................
Psittacidae ...............................
Psittacidae ...............................
Picidae ....................................
orange-fronted parakeet
Uvea parakeet ................
helmeted woodpecker ....
C
C
C
C
............
............
............
............
2 .............
2 .............
11 ...........
12 ...........
Dendrocopus noguchii ............
Aulacorhynchus huallagae ......
Scytalopus novacapitalis .........
Bowdleria punctata wilsoni .....
Picidae ....................................
Ramphastidae .........................
Conopophagidae .....................
Sylviidae ..................................
Okinawa woodpecker .....
yellow-browed toucanet ..
Brasilia tapaculo .............
Codfish Island fernbird ...
C ............
C ............
C ............
2 .............
8 .............
6 .............
Zosterops luteirostris ...............
Tangara peruviana ..................
Strepera graculina crissalis .....
Zosteropidae ...........................
Thraupidae ..............................
Cracticidae ..............................
Ghizo white-eye ..............
black-backed tanager .....
Lord Howe pied
currawong.
Colombia.
New Zealand.
Chatham Islands, New
Zealand.
New Zealand.
Uvea, New Caledonia.
Argentina, Brazil, Paraguay.
Okinawa Island, Japan.
Peru.
Brazil.
Codfish Island, New Zealand.
Solomon Islands.
Brazil.
Lord Howe Islands, New
South Wales.
Invertebrates (Butterflies)
C ............
6 .............
Paplionidae .............................
Harris’ mimic swallowtail
Brazil.
Paplionidae .............................
Jamaican kite swallowtail
Jamaica.
5 .............
2 .............
Eurytides (= Graphium or
Mimoides) lysithous
harrisianus.
Eurytides (= Graphium or
Neographium or
Protographium or
Protesilaus) marcellinus.
Parides ascanius .....................
Parides hahneli .......................
C ............
2 .............
C ............
C ............
Paplionidae .............................
Paplionidae .............................
Brazil.
Brazil.
8 .............
Teinopalpus imperialis ............
Paplionidae .............................
Fluminense swallowtail ...
Hahnel’s Amazonian
swallowtail.
Kaiser-I-Hind swallowtail
C ............
Colorado delta clam .......
Mexico.
Bhutan, China, India,
Laos, Myanmar, Nepal,
Thailand, Vietnam.
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Mollusc
C ............
2 .............
Mulinia coloradoensis .............
Findings on Species for Which Listing
Is Warranted But Precluded
We have found that, for the 20 taxa
discussed below, publication of
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Mactridae ................................
proposed listing rules is warranted but
precluded due to the need to complete
pending, higher priority proposals to
determine whether any species is an
endangered species or a threatened
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species. We will continue to monitor the
status of these species as new
information becomes available (see
Monitoring, below). Our review of new
information will determine if a change
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in status is warranted, including the
need to emergency list any species or
change the LPN of any of the species. In
the following section, we describe the
status of and threats to the individual
species.
Birds
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Southern Helmeted Curassow (Pauxi
unicornis), LPN = 2
Taxonomy
The Bolivian population of the
nominate (a subspecies with the same
name as the species) species (Pauxi
unicornis unicornis) remained unknown
to science until 1937 (Cordier 1971).
The Peruvian subspecies is Pauxi
˜
unicornis koepckeae (Gastanaga et al.
2011, p. 267). What is now recognized
as the southern helmeted curassow may
in fact be two separate species that are
currently recognized as two subspecies
(Pauxi unicornis unicornis and Pauxi
unicornis koepckeae). It has been
proposed that these subspecies of Pauxi
unicornis may represent two different
species because they are separated by
more than 1,000 km (621 mi), and have
˜
distinct characteristics (Gastanaga et al.
2011, p. 267). Currently, both BirdLife
International (BLI) and the International
Union for Conservation of Nature
(IUCN) recognize the southern helmeted
curassow as Pauxi unicornis and do not
specifically address either subspecies.
The Integrated Taxonomic Information
System (ITIS) recognizes Pauxi
unicornis as a full species as well as
both subspecies (ITIS 2012, accessed
June 11, 2012).
In many cases, taxonomy of species
can be unclear. There is substantial
discussion in scientific literature that
debates the classification of species and
whether various entities deserve species
status rather than subspecies status
(Phillimore 2010, pp. 42–53; James
2010, pp. 1–5; Pratt 2010, pp. 79–89).
This is sometimes significant with
respect to conservation measures,
particularly when considering the
criteria used by organizations such as
the IUCN. These two subspecies may in
fact be species, but for the purpose of
this review, these two subspecies
essentially face the same threats, are
generally in the same region of South
America, and both have quite small
populations. Absent peer-reviewed
information to the contrary and based
on the best available information, we
recognize both subspecies as being
valid. For the purpose of this review, we
are reviewing the petitioned entity,
Pauxi unicornis, which includes all
subspecies. We welcome comments on
the classification of the southern
helmeted curassow.
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´
Rıo) (Wege and Long 1995). More
recently, it has been observed in the
The southern helmeted curassow, also
´
adjacent Amboro and Carrasco National
known as the helmeted or horned
Parks (Maillard 2006, p. 95; Brooks
curassow or the unicorn bird, is one of
2006; Herzog and Kessler 1998). It was
the least frequently encountered South
also found in Isiboro-Secure Indigenous
American bird species (Tobias and del
Territory and National Park (TIPNIS),
Hoyo 2006, p. 61; Maillard 2006, p. 95;
and along the western edge of the
Cox et al. 1997, p. 199). This may be due
Cordillera Mosetenes, Cochabamba. A
to the inaccessibility of its preferred
recent survey located a few southern
habitat and its apparent intolerance of
helmeted curassows across the northern
human disturbance (Macleod et al.
boundary of Carrasco National Park,
2009, pp. 15–16; Herzog and Kessler
where it was historically found
1998).
(MacLeod 2007 as cited in BLI 2009a).
This species of curassow inhabits
Some surveys conducted between 2004
dense, humid, lower montane forest and
and 2005 found no evidence of the
adjacent evergreen forest at altitudes of
species anywhere north or east of
between 450 and 1,200 meters (m)
´
Amboro, Carrasco, and Isiboro-Secure
(1,476 to 3,937 feet) (Cordier 1971;
National Parks in central Bolivia
Herzog and Kessler 1998). It prefers
(Macleod et al. 2009, p. 16). However,
eating nuts of the almendrillo tree
one survey in 2005 found it
(Byrsonima wadsworthii (Cordier
approximately 8 km (5 mi) northeast of
1971)), but also consumes other nuts,
Palmasola in the Integrated Management
seeds, fruit, soft plants, larvae, and
´
Natural Area, Amboro, Santa Cruz
insects (BLI 2008). Clutch size of the
Department (Maillard 2006, p. 95). It
southern helmeted curassow is probably was found only in six locations during
two, as in other Cracidae. However, the
the surveys. Extensive surveys over the
only nest found contained only one egg
last several years have failed to locate
(Banks 1998; Cox et al. 1997; Renjifo
the species in Madidi National Park, La
and Renjifo 1997 as cited in BLI 2010a). Paz, on the eastern edge of the
Mosetenes Mountains in Cochabamba,
Range
´
or in the Rıo Tambopata area near the
The southern helmeted curassow is
Bolivia-Peru border (MacLeod in litt.
only known to occur in central Bolivia
2003 as cited in BLI 2010a; Hennessey
and central Peru (BirdLife International
2004a as cited in BLI 2009a;
(BLI) 2012). One of the locations where
Maccormack in litt. 2004 as cited in BLI
it has been found is Valle de la Luna,
2008).
´
on the east side of the Rıo Leche, 0.5–
In Peru, Pauxi u. koepckeae is known
1.0 km (0.3–0.6 miles) north of Parque
only from the Sira Mountains (known as
Nacional Carrasco, in the Department of the Reserva Comunal El Sira), in the
Cochabamba, Bolivia. The Valley is an
´
˜
Department of Huanuco (Gastanaga et
extensive, flat, largely unvegetated area
al. 2011, pp. 267, 269; Tobias and del
at 450 m (1,476 ft) above sea level,
Hoyo 2006). Surveys suggest that the
´
bounded by the Rıo Leche to the west
southern helmeted curassow is
and by steep cliffs and primary forest to extremely rare here (Gastanaga et al.
˜
the east. It has also been located in
2011, p. 267; MacLeod in litt. 2004 as
´
Amboro (Macleod et al. 2009, pp. 15–
cited in BLI 2008; Maccormack in litt.
16).
˜
2004 as cited in BLI 2009a; Gastanaga
Research indicates that the species
and Hennessey 2005; Mee et al. 2002).
once inhabited a contiguous area along
Pauxi u. koepckeae occurs in an area
the Peruvian-Bolivian Andean mountain that is isolated from the Andes
cloud forest chain, and now has become Mountains.
two isolated populations or subspecies
Population
(see Appendix A in Docket FWS–R9–
The total population of southern
ES–2012–0044 for a map) that are at the
helmeted curassow is estimated to be
peripheries of its former range
˜
between 1,500 and 7,500 individuals
(Gastanaga et al. 2011, p. 273). In
(BLI 2012). Within its limited range, the
Bolivia, the horned curassow is found
only in the departments of Cochabamba southern helmeted curassow typically
occurs at densities of up to 20
and Santa Cruz (BLI 2012; Maillard
individuals per square kilometer (km2)
2006, p. 95). All current records are
(Macleod 2007 as cited in BLI 2008).
from in or near three protected areas—
´
´
Within Peru, the population is
Amboro, Carrasco, and Isiboro-Secore
´
´
estimated to have fewer than 400
(Asociacion Armonıa 2012; Maillard
˜
individuals (Gastanaga in litt. 2007, as
2006, p. 95).
´
In Amboro National Park (Yungas
cited in BLI 2010a). In recent years,
´
Inferiores de Amboro), the southern
extensive field surveys of southern
helmeted curassow was regularly seen
helmeted curassow habitat have
on the upper Saguayo River (Saguayo
resulted in little success in locating the
Species Description
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species (Hennessey 2004a; MacLeod in
litt. 2004 as cited in BLI 2009a;
Maccormack in litt. 2004 as cited in BLI
2010a; MacLeod in litt. 2003 as cited in
BLI 2010a; Mee et al. 2002). As of 2009,
the estimated decline in the overall
population over 10 years was 50 to 79
percent (BLI 2009b).
Factors Affecting the Species
The southern helmeted curassow is
dependent upon particular
environmental conditions that have
been altered over the past few centuries.
Southern helmeted curassow
populations are estimated to be
˜
declining very rapidly (Gastanaga et al.
˜
2011, p. 277; Gastanaga 2006, p. 15).
This species has a small range and is
known only from a few locations, and
continues to be subject to habitat loss
and hunting pressure. The species was
observed in a forested area
approximately 5 km (3 mi) from the
Valle de la Luna clay lick site where
parrots forage for nutrients (Mee et al.
2005, p. 4), but it had apparently been
exterminated by hunting within 5 years
(McLeod in litt. in Mee et al. 2005, p.
4).
In Bolivia, large parts of southern
helmeted curassow habitat are
ostensibly protected by inclusion in the
´
Amboro and Carrasco National Parks
and in the Isiboro-Secure Indigenous
Territory and National Park. However,
pressures on the species’ populations
continue (BLI 2010a). Forests within the
range of the southern helmeted
curassow in Bolivia are being cleared for
crop cultivation by colonists from the
altiplano (Maillard 2006, pp. 95–98).
Rural development including road
˚
building inhibits its dispersal (Fjeldsa in
litt. 1999 as cited in BLI 2010; Herzog
and Kessler 1998). Historically, the
species was often hunted for meat due
to its large size and for its unique blue
casque, or horn, which the local people
used to make cigarette lighters (Collar et
´
al. 1992; Cordier 1971). In the Amboro
region of Bolivia, the bird’s head was
purportedly used in folk dances (Hardy
1984 as cited in Collar 1992). It is
unclear whether this practice still
occurs.
In Peru, the main factor affecting P. u.
koepckeae is hunting by local
˜
communities (Gastanaga et al. 2011, p.
277), but the species is also impacted by
subsistence agriculture forest clearing
by colonists, mining, oil exploration,
and illegal logging (MacLeod in litt.
´
2000 as cited in BLI 2010a). The Rıo
Leche area experienced a 100 percent
population decline in less than 5 years
likely due to hunting or other pressures
(Macleod et al. 2009, p. 16). In Carrasco
National Park, the species had been
abundant during surveys in 2001, but in
2004, there were no visual or auditory
sightings (Macleod et al. 2009, p. 16).
The disappearance may be due to illegal
human encroachment. Unless threats
are mitigated, this trend will probably
continue for the next several years
(Macleod in litt. 2005).
Peru and Bolivia have enacted various
laws and regulatory mechanisms to
protect and manage wildlife and their
habitats. However, the remaining
suitable habitat for this species is
fragmented and degraded. Habitat
throughout the species’ range has been
and continues to be altered as a result
of human activities, particularly human
encroachment and concomitant
increased pressure on natural resources.
Despite the recent improvements in
laws in Peru and Bolivia, destructive
activities are ongoing within protected
areas and in these species’ habitat,
indicating that the laws governing
wildlife and habitat protection in both
countries are either inadequate or
inadequately enforced to protect the
species or to mitigate ongoing habitat
loss and population declines.
The FAO conducted a review of forest
policies and laws in 2010, and a
summary for Peru and Bolivia is in
Table 2. The study found that, although
Peru does not have a national forest
policy, it does have both a national
forest program and law in place. Bolivia
has a national forest policy, national
forest program, and law program in
place. No forest laws at the subnational
level (such as jurisdictions equivalent to
states in the United States) exist in these
countries. FAO reported that Peru and
Bolivia reported a significant loss of
primary forests; this loss peaked in the
period 2000–2005 in Peru and increased
in Bolivia in the last decade compared
with the 1990s (p. 56). FAO also
reported that, at a regional level, South
America suffered the largest net loss of
forests between 2000 and 2010; at a rate
of approximately 4.0 million ha (9.9
million ac) per year (p. xvi). In Bolivia,
habitat is protected either on the
national or departmental level.
Recently, Bolivia passed the ‘‘Law of
Rights of Mother Earth’’ to add strength
to its existing environmental protection
laws. This law has the objective of
recognizing the rights of the planet
(Government of Bolivia, 2010).
TABLE 2—SUMMARY OF FOREST POLICIES AND LAWS IN BOLIVIA AND PERU (ADAPTED FROM FAO GLOBAL FOREST
RESOURCE ASSESSMENT 2010, P. 303)
Country
National forest
policy
Exists
Bolivia ...........
Peru ..............
Yes .......
No ........
National forest program
Exists
Year
2008
—
Yes ..............
Yes ..............
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Conservation Status
The southern helmeted curassow is
classified as endangered on the IUCN
Red List (BLI 2012; BLI 2009a). It is not
listed in any appendices of the
Convention on International Trade in
Endangered Species of Wild Fauna and
Flora (CITES; www.cites.org), which
regulates international trade in animals
and plants of conservation concern.
It is legally protected in the El Sira
Communal Reserve (most of the Sira
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Year
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2008
2004
Forest law national
Status
National—type
In implementation ......
In implementation ......
Specific forest law .....
Specific forest law .....
Mountains), but hunting still likely
´
occurs in this area. The Armonıa
Association is carrying out an
environmental awareness project to
inform local people about the threats to
the southern helmeted curassow
´
´
(Asociacion Armonıa 2010) and is
conducting training workshops with
park guards to help improve chances for
´
its survival. Armonıa is also attempting
to estimate southern helmeted curassow
population numbers to identify its most
important populations and is evaluating
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Year
1996
2000
Subnational exists
No
No
human impact on the species’ natural
habitat.
In the previous ANOR, the southern
helmeted curassow received an LPN of
2. After reevaluating the threats to the
species, we have determined that no
change in the LPN is warranted. The
southern helmeted curassow does not
represent a monotypic genus. It faces
threats that are high in magnitude based
on its small, limited range. The few
locations where it is believed to exist
continue to be subject to habitat
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destruction and loss from agricultural
development, road building, and
hunting. Although the population is
estimated to be between 1,500 and 7,500
individuals, this may be an overestimate
because it has such a limited range and
the population trend is believed to be
rapidly declining (Jetz et al. 2007, p. 1).
The best scientific information available
suggests that the population decline will
continue in the future. Because the
species is experiencing such a
significant population decline and is
still experiencing significant pressures,
this species has an LPN of 2 to reflect
imminent threats of high magnitude.
Bogota Rail (Rallus semiplumbeus),
LPN = 2
Species and Habitat Description
The Bogota rail is found in the East
´
´
Andes of Colombia on the Ubate-Bogota
´
Plateau in Cundinamarca and Boyaca. It
occurs in the temperate zone at 2,500–
4,000 m (8,202–13,123 ft and
occasionally as low as 2,100 m) (6,890
´
ft) in savanna and paramo marshes (BLI
2010b). Bogota rails inhabit wetland
habitats with vegetation-rich shallows
that are surrounded by tall, dense reeds
and bulrushes (Stiles in litt. 1999 as
cited in BLI 2010b). The species
inhabits the water’s edge, in flooded
pasture and along small overgrown
dykes and ponds (Varty et al. 1986 as
˚
cited in BLI 2010b; Fjeldsa 1990 as cited
˚
in BLI 2010b; Fjeldsa and Krabbe 1990
as cited in BLI 2010b; Salaman in litt.
1999 as cited in BLI 2010b). Nests have
been recorded adjoining shallow water
in beds of Scirpus (bulrush or sedge)
and Typha (cat tail) species (Stiles in
litt. 1999 as cited in BLI 2010b). The
Bogota rail is omnivorous, consuming a
diet that includes aquatic invertebrates,
insect larvae, worms, mollusks, dead
fish, frogs, tadpoles, and plant material
(BLI 2012; Varty et al. 1986 as cited in
BLI 2010b).
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Population and Range
The current population is estimated to
be between 1,000 and 2,499 individuals
(BLI 2012). Although the Bogota rail has
been observed in at least 21 locations in
Cundinamarca, the Bogota rail
population is thought to be declining. It
is still described as being uncommon to
fairly common, with a few notable
populations, including nearly 400 birds
at Laguna de Tota, approximately 50
bird territories at Laguna de la Herrera,
approximately 100 birds at Parque La
Florida, and populations at La Conejera
marsh and Laguna de Fuquene (BLI
2010b).
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Factors Affecting the Species
Its suitable habitat has become widely
fragmented (BLI 2012; BLI 2010b).
Wetland drainage, pollution, and
´
´
siltation on the Ubate-Bogota plateau
have resulted in major habitat loss and
few suitably vegetated marshes remain.
All major savanna wetlands are
threatened, predominately due to
draining, but also due to agricultural
runoff, erosion, dyking, eutrophication
caused by untreated sewage effluent,
insecticides, tourism, hunting, burning,
reed harvesting, fluctuating water levels,
and increasing water demand.
Additionally, road construction may
result in colonization and human
interference, including introduction of
exotic species in previously stable
wetland environments (Cortes in litt.
2007 as cited in BLI 2010b).
Conservation Status
The Bogota rail is listed as
endangered by IUCN primarily because
its range is very small and is contracting
due to widespread habitat loss and
degradation. It is not listed in any
appendices of CITES. Some Bogota rails
occur in protected areas such as
Chingaza National Park and Carpanta
Biological Reserve. However, most
savanna wetlands are virtually
unprotected (BLI 2012).
In the previous ANOR, the Bogota rail
received an LPN of 2. After reevaluating
the threats to this species, we have
determined that no change in the listing
priority number for the species is
appropriate. The Bogota rail does not
represent a monotypic genus. It faces
threats that are high in magnitude due
to the pressures on the species’ habitat.
Its range is very small and is rapidly
contracting because of widespread
habitat loss and degradation
(agricultural encroachment, erosion,
dyking, and eutrophication). The
population is believed to be between
1,000 and 2,499 individuals, and the
population trend is believed to be
rapidly declining. The factors affecting
the species are occurring now, are
ongoing, and are therefore imminent.
Thus, the LPN remains at 2 to reflect
imminent threats of high magnitude.
Takahe (Porphyrio hochstetteri),
LPN = 8
Species Description
The takahe, a flightless rail endemic
to New Zealand, is the world’s largest
extant (living) member of the rail family
(del Hoyo et al. 1996). Porphyrio
mantelli was split into P. mantelli
(extinct) and P. hochstetteri (extant)
(Trewick 1996). Takahe territories are
between several hectares to more than
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24609
100 ha (247 acres) depending on the
availability of their preferred food
sources (Lee and Jamieson 2001, p. 57).
Takahe defend their territories
aggressively against other takahe, which
means that they will not form dense
colonies even in optimal habitat. They
are long-lived birds, probably living
between 14 and 20 years (Heather and
Robertson 1997) and have a low
reproductive rate, with clutches
consisting of one to three eggs. The
species forms life-long pair bonds and
generally occupy the same territory
throughout life (Reid 1967). Generally,
only a few pairs in the wild manage to
consistently rear more than one chick
each year.
Population and Range
Historically, takahe were common
throughout most coastal and eastern
parts of the South Island of New
Zealand (Grueber and Jamieson 2011, p.
384; Grueber and Jamieson 2008, p.
384). Today, the species is present in
the Murchison and Stuart Mountains
and was introduced to five island
reserves and one privately owned island
(Wickes et al. 2009, p. 10; Collar et al.
1994). Small groups of takahe were
introduced to Maud Island in the
Marlborough Sounds, Mana and Kapiti
Islands north of Wellington, Tiritiri
Matangi Island in the Hauraki Gulf
northeast of Auckland, and
Maungatautari Ecological Island,
Waikato. The population in the
Murchison Mountains of Fiordland
National Park, South Island, is the only
mainland population and that has the
potential for sustaining a large, viable
population (New Zealand Department of
Conservation (NZDOC) 2010; 2009b;
2007; Bunin and Jamieson 1996).
When rediscovered in 1948, it was
estimated that the takahe population
consisted of about 260 pairs (Heather
and Robertson 1997; del Hoyo 1996). In
1981, the population reached a low of
an estimated 120 birds. As of 2010, it
was estimated that there were about 100
birds in the wild in the Murchison
Mountains (NZDOC 2010), but there
may be up to 300 in this area (https://
www.mitre10takaherescue.co.nz,
accessed July 17, 2012). Currently, there
are approximately 350 individuals that
are receiving conservation efforts
(Grueber et al. 2012, p. 4; Wickes et al.
2009).
Factors Affecting the Species
Several factors have led to the decline
in the species’ population. Factors that
had affected this species in the past
included hunting, a competitor (the
introduced brush-tailed possum
(Trichosurus vulpecula)), and predators
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such as stoats (Mustela erminea) and the
threatened weka (Gallirallus australis), a
flightless woodhen that is endemic to
New Zealand (BLI 2010c). The NZDOC
ran a trial stoat control program in a
portion of the takahe Special Area to
measure the effect on takahe survival
and productivity. Initial assessment
indicated that the control program had
a positive influence (NZDOC 2009, pp.
35–36); however, occasionally, stoat
eradication still occurs as needed.
Now the primary factors affecting the
species are limited suitable habitat and
a very small population size (Grueber et
al. 2012, pp. 1–5); however, other
factors that likely affect this species are
discussed in this section. Although
there are no known diseases that are
currently a concern in the takahe,
diseases in avian species are currently a
concern in New Zealand and are being
monitored (McLelland et al. 2011, pp.
163–164).
Studies suggest the level of inbreeding
may be underestimated for this species
because this species has persisted at a
small population size for over 150 years
(Grueber and Jamieson 2011, p. 392;
Grueber et al. 2010, pp. 7–9). Relative to
other species, the takahe has low genetic
diversity (Grueber et al. 2010, pp. 7–9).
There is growing evidence that
inbreeding can negatively affect small,
isolated populations. Inbreeding can
result in reduced fitness potential and
higher susceptibility to biotic and
abiotic disturbances in the short term,
and an inability to adapt to
environmental change in the long term.
After substantially decreasing in
numbers, the species experienced a loss
of fitness as a result of recent inbreeding
(Grueber et al. 2011; Grueber and
Jamieson 2008, p. 649). Small
populations generally recover slowly
from catastrophic events (Crouchley
1994); this is a concern because this
species has such a small population size
(approximately 350 individuals). To
increase the population, NZDOC has
been removing some eggs from the wild,
captive rearing them, and reintroducing
them back into the wild (also refer to
Conservation Status, below) (Grueber et
al. 2012, p. 1; NZDOC 2009, p. 26).
Lead exposure may affect this species
on some of the islands (Youl 2009, pp.
79–83). Lead levels in the island
populations were found to be higher
than those on the mainland. Older
buildings on some of the island contain
lead paint. One or more takahe breeding
pairs were located near buildings
containing lead-based paint. A family
group on one island that was close to a
building containing lead paint was
found to have significantly higher lead
levels than a family group located away
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birds to the Fiordland population
(Grueber et al. 2012, p. 4). The NZDOC
has been involved in a captive-breeding
and release program to improve takahe
recovery since 1983 (NZDOC 2009, p.
29). Excess eggs from wild nests are
managed to produce birds suitable for
releasing back into the wild population
in the Murchison Mountains.
Some of these captive-reared birds
have been used to establish five
predator-free, offshore island reserves.
Overall, this species’ population
numbers fluctuate annually, but appear
to be slowly increasing due to intensive
management of the island reserve
populations (Grueber et al. 2012, pp. 1–
5; Wickes et al. 2009). Pest eradication
on Motutapu Island (1,500 ha) (3,707 ac)
may provide suitable habitat for this
species (Grueber et al. 2012, p. 4). These
captive-breeding efforts have increased
the rate of survival of chicks reaching 1
year of age from 50 to 90 percent
(Wickes et al. 2009). Although takahe
that were translocated to the islands had
higher rates of egg infertility and low
hatching success when they breed
(Jamieson & Ryan 2000), there has been
recent breeding success. In 2010,
NZDOC reported that at least 21 chicks
hatched on predator-free islands, and,
for the first time, the mainland
population on Maungatautari Ecological
Island, Waikato, produced a chick,
indicating an improvement in
conservation efforts.
In the previous ANOR, the takahe
received an LPN of 8. After reevaluating
the threats to the takahe, we have
determined that no change in the
classification of the magnitude and
imminence of threats to the species is
warranted at this time. The takahe does
not represent a monotypic genus. The
current population is small
(approximately 350 individuals), and
Conservation Status
the species’ distribution is extremely
The takahe is listed as endangered on limited. Although it has a small
the IUCN Red List because it has an
population, limited suitable habitat, and
extremely small population (BLI 2012).
may experience inbreeding depression,
It is not listed in any appendices of
because the NZDOC is actively involved
CITES; international trade is not a
in measures to aid the recovery of the
concern. New Zealand considers the
species (Grueber et al. 2012; Wickes et
takahe to be an endangered species, and al. 2009, 58 pp.; NZDOC 2009e, 3 pp.),
it is classified as nationally critical
we find the threats that are moderate in
under the New Zealand Threat
magnitude. The NZDOC has
Classification System. The NZDOC,
implemented a captive breeding and
through its 2007–2012 Takahe Recovery release program to supplement the
Plan, is managing the populations of the mainland population, and established
species through various conservation
several offshore island reserves.
efforts such as captive breeding,
However, despite conservation efforts,
population management, eradication of
the threats are ongoing and, therefore,
predators, and management of
imminent. Lack of suitable habitat and
grasslands (Wickes et al. 2009, p. 9). The predation, combined with the takahe’s
Takahe Recovery Group has explored
small population size and naturally low
strategies to increase the productivity of reproductive rate, are threats to this
species that are moderate in magnitude.
the island populations by establishing
Thus, the LPN remains at 8 to reflect
new island sites or relocating some
from buildings (Youl 2009, p. 80). Lead
has been found to affect the learning
capacity of avian species (Youl 2009,
pp. 11–13). This exposure to lead may
cause decreased fitness of takahe.
Severe weather may also be a limiting
factor to the takahe (BLI 2010c; Bunin
and Jamieson 1995). Weather patterns in
the Murchison Mountains vary from
year to year. High chick and adult
mortality may occur during
extraordinarily severe winters, and poor
breeding may result from severe stormy
weather during spring breeding season
(Crouchley 1994). The severity of winter
conditions adversely affects
survivorship of takahe in the wild,
particularly of young birds (Maxwell
and Jamieson 1997).
Another factor of concern is that the
mainland population and the
populations on the island reserves may
be at carrying capacity (Grueber et al.
2012, p. 1; Jamieson 2010, p. 122;
Wickes et al. 2009, p. 29; Greaves 2007,
p. 17). Rareness of a vital component of
its diet, C. conspicua, may be a limiting
factor affecting the lack of viability of
the takahe population (Wickes et al.
2009, pp. 39–40). C. conspicua is less
common in the forest understory in the
Takahe Special Area than it was
historically. NZDOC has conducted
research and has attempted to
reintroduce and increase the prevalence
of this plant species in the Murchison
Mountains Reserve (Wickes et al. 2009,
pp. 39–40). The island populations now
primarily consume introduced grasses
(BLI 2010c). Some researchers have
theorized that consumption of these
nonnative species may contribute to
inadequate nutrition and subsequent
nest failure (Jamieson 2003, p. 708);
however, this theory has not been
confirmed.
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imminent threats of moderate
magnitude.
Chatham Oystercatcher (Haematopus
chathamensis), LPN = 8
Species and Habitat Description
The Chatham oystercatcher is the
most rare oystercatcher species in the
world (NZDOC 2001). It is endemic to
the Chatham Island group (Schmechel
and Paterson 2005; Marchant and
Higgins 1993), which is 860 km (534 mi)
east of mainland New Zealand. The
Chatham Island group consists of two
large, inhabited islands (Chatham and
Pitt) and numerous smaller islands. Two
of the smaller islands (Rangatira and
Mangere) are nature reserves. The
Chatham Island group has an ecosystem
that consists of biota that is quite
different from New Zealand’s mainland.
The remote marine setting, distinct
climate, and physical makeup have led
to a high degree of endemism (Aikman
et al. 2001). The southern part of the
Chatham oystercatcher range is
dominated by rocky habitats with
extensive rocky platforms. The northern
part of the range is a mix of sandy beach
and rock platforms (Aikman et al. 2001);
however, the species exhibits preference
for intertidal rock platforms and wide
sandy beaches (Schmechel and Paterson
2005, p. 5).
Pairs of Chatham oystercatchers
occupy their territory all year, while
juveniles and subadults form small
flocks or occur alone on vacant sections
of the coast. Their scrape nests (shallowrimmed depressions in soil or
vegetation) are usually formed on sandy
beaches just above spring-tide and
storm-surge level or among rocks above
the shoreline and are often under the
cover of small bushes or rock overhangs
(Heather and Robertson 1997).
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Population and Range
Records of the Chatham Island
oystercatcher indicate that, historically,
this species has likely always existed as
a sparse and small population (Moore
2008, p. 27). Although the population of
this species has never likely been very
large (Moore 2008, p. 27), the
population has increased since the
1970s to approximately 300 birds due to
predator control and habitat protection
(NZ DOC 2012; Moore 2009b, p. 32;
Moore 2005a). In the early 1970s, the
Chatham oystercatcher population was
approximately 50 birds (Moore 2008, p.
20; del Hoyo 1996).
The islands of Mangere and Rangatira
were designated as Nature Reserves in
the 1950s, and efforts began to save the
native bird species including the
removal of sheep in the 1960s. However,
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the Chatham oystercatcher population
has not done well on those islands
(Moore 2008, p. 29). Over the last 20
years, the population on South East
Island (Rangatira), an island free of
mammalian predators, has gradually
declined since the 1970s for unknown
reasons (Moore 2009a, p. 9; Schmechel
and O’Connor 1999). The decline is
likely due to large waves during sea
storms, which have destroyed the nests
(Moore 2009a, p. 9). The distribution of
oystercatchers in the Chatham Islands
has changed from a southern to a
northern dominance since 1970 (Moore
2008, p. 25). In the 1970s, 65 percent of
the population was found on the
southern three islands (Pitt, Mangere
and Rangatira) and 35 percent on
Chatham Island. As of 2006, 81 percent
of the population was on Chatham
Island (62 percent in northern core
census areas) and 19 percent was on the
southern islands (Moore 2008, p. 25).
Factors Affecting the Species
Historically, cattle and sheep grazing,
which began in the 1840s–1850s,
affected this species and its habitat
(Moore 2008, p. 28). On Chatham Island,
by 1901 there were 60,000 sheep,
although they have since been removed.
Much of the forest had been burned and
cleared (Butler & Merton 1992 in Moore
2008, p. 28), particularly in coastal areas
(Bell & Robertson 1994 in Moore 2008,
p. 28).
Predation, nest disturbance, invasive
plants, and spring tides and storm
surges are factors that significantly
impact the Chatham oystercatcher
population (NZDOC 2012, p. 2; Moore
2009a, pp. 8–9; Moore 2005; NZDOC
2001). After three summers of video
recording, 13 of the 19 nests recorded
were predated by cats, but of the
remaining six nest failures, weka were
responsible for three; red-billed gull,
one; sheep-trampling, one; and sea
wash, one (Moore 2005b). When a cat
was present, eggs usually lasted only 1
or 2 days. The weka, although endemic
to New Zealand, is not endemic to the
Chatham Islands, and was introduced in
the early 1900s. Weka were observed
preying upon this species three times
through camera trapping between 1999
and 2001 (Moore 2009a, p. 8). Weka is
not considered as severe a threat to the
Chatham oystercatcher as feral cats
because weka only prey on eggs when
adult oystercatchers are not present.
Severe reduction in Chatham
oystercatcher numbers is attributed
primarily to heavy predation by cats
(Felis catus) and weka (Moore 2009a, p.
8) (NZ 2012). Feral cats have become
established on two of the Chatham
Islands after being introduced as pets.
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Video cameras placed to observe nests
indicated that feral cats are a major nest
predator. Other predators include the
native red-billed gull (Larus scopulinus)
and southern black-backed gull (L.
dominicanus) (Moore 2005b).
Nest destruction and disturbance is
caused by people fishing, walking, or
driving on or near nests. When a nesting
area is disturbed, adult Chatham
oystercatchers often abandon their eggs
for up to an hour or more, leaving the
eggs vulnerable to opportunistic
predators. Eggs are also trampled by
livestock (Moore 2005a), and, in one
case, a sheep was observed lying on a
nest (Moore 2009b, p. 21).
Another obstacle to Chatham
oystercatcher populations is habitat
degradation. Marram grass (Ammophila
arenaria) introduced to New Zealand
from Europe to protect farmland from
sand encroachment (Moore 2008, p. 28)
has spread to the Chatham Islands
where it binds beach sands forming tall
dunes with steep fronts. In many
marram-infested areas, the strip between
the high-tide mark and the fore dunes
narrows as the marram advances
seaward. The dense marram grass is
unsuitable for nesting (Moore 2008, p.
28; Moore and Davis 2005).
Consequently, the Chatham
oystercatcher is forced to nest closer to
shore where nests are vulnerable to
tides and storm surges. In a study done
by Moore and Williams (2005), the
authors found that, along the narrow
shoreline, many eggs were washed away
and the adults would not successfully
breed without human intervention.
Oystercatcher eggs were moved away
from the shoreline by fieldworkers and
placed in hand-dug scrapes surrounded
by tidal debris and kelp.
Conservation Status
The Chatham oystercatcher is listed as
critically endangered by the NZDOC
(2010d), making it a high priority for
conservation management (NZDOC
2007). It is classified as ‘‘Endangered’’
on the IUCN Red List because it has an
extremely small population (BLI 2012).
It is not listed in any appendices of
CITES.
The birds of the Chatham Island
group receive limited protection in part
due to their remote location and
subsequent inaccessibility (McBride
2011, p. 108). The NZDOC focused
conservation efforts in the early 1990s
on predator trapping and fencing to
limit domestic stock access to nesting
areas. In 2001, the NZDOC published
the Chatham Island Oystercatcher
Recovery Plan 2001–2011 (NZDOC
2001, 24 pp.), which prescribed actions
such as translocation of nests away from
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the high-tide mark and nest
manipulation to further the
conservation of this species. These
actions may have helped to increase
hatching success (NZDOC 2008b).
Artificial incubation has been attempted
but has not increased productivity.
Additionally, livestock have been
fenced and signs erected to reduce
human and dog disturbance. Control of
the invasive Marram grass has been
successful in some areas. Intensive
predator control combined with nest
manipulation has resulted in a high
number of fledglings (BLI 2009; NZDOC
2008).
In the previous ANOR, the Chatham
oystercatcher received an LPN of 8.
After reevaluating the threats to this
species, we have determined that no
change in the classification of the
magnitude and imminence of threats to
the species is warranted at this time.
The Chatham oystercatcher does not
represent a monotypic genus. The
current population estimate is very
small (approximately 350 individuals),
and the species has a limited range.
Although the NZDOC has taken
measures to aid the recovery of the
species (the species’ population is
slowly increasing on some islands), the
species continues to face threats
(predation, trampling, low population
numbers, and potential loss due to
storm surges) that are moderate in
magnitude (McBride 2011, pp. 108, 110;
Moore 2008, p. 30). However, the threats
are still ongoing and, therefore,
imminent. The LPN remains an 8 to
reflect imminent threats of moderate
magnitude.
Orange-Fronted Parakeet
(Cyanoramphus malherbi), LPN = 8
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Taxonomy
The orange-fronted parakeet, endemic
to New Zealand, was treated as an
individual species until it was proposed
to be a color morph of the yellowcrowned parakeet, C. auriceps, in 1974
(Holyoak 1974). Further taxonomic
analysis indicated that it is a distinct
species (Kearvell et al. 2003). IUCN,
BLI, and ITIS all recognize
Cyanoramphus malherbi as a full
species (ITIS 2010, accessed July 16,
2010). The common name ‘‘orangefronted parakeet’’ is used by BirdLife
International (2000, 2004) as the
common name for Aratinga canicularis,
which is native to Costa Rica. Because
New Zealand continues to refer to this
species as the orange-fronted parakeet,
we will use this common name in this
document. Absent peer-reviewed
information to the contrary, we consider
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Cyanoramphus malherbi to be a valid
species.
Species Description
This species, also known as
¨ ¨
Malherbe’s Parakeet or the kakariki, is
primarily green with yellow and orange
coloring on its head above its bill with
some blue wing feathers. The female
lays between five and eight eggs and the
eggs take 21–26 days to incubate. During
mast years (a year in which vegetation
produces a significant abundance of
mast, or fruit), when there is a high
abundance of seed production by
Nothofagus species (beech trees),
parakeet numbers can increase
substantially; breeding has been linked
with food availability.
On South Island, seeds of Nothofagus
species were observed to be a major
component of its diet (Kearvall et al.
2002, pp. 140–145). On the mainland,
the species is reliant on old mature
beech trees with natural cavities for
nesting, but on the islands where it has
been introduced, it is less selective in its
nest sites (Ortiz-Catedral and Brunton
2009, p. 153). In other areas where it has
been introduced, it feeds on a variety of
other food sources. On Maud Island, a
primary component of its diet was
Melicytus ramiflorus (mahoe) (OrtizCatedral and Brunton 2009, p. 385). In
addition to eating seeds, the orangefronted parakeet feeds on fruits, leaves,
flowers, buds, and small invertebrates
(NZ DOC 2012, p. 1).
Population and Range
This species is described as never
having been common (Mills and
Williams 1979). The orange-fronted
parakeet has an extremely small and
fragmented population in addition to a
limited range (BLI 2012). BLI estimates
its population in the wild is between 50
and 249 individuals (BLI 2012).
NZDOC’s population estimate as of 2009
was between 100 and 200 individuals
remaining in the wild. Between 2007
and 2009, researchers introduced 62
birds to Maud Island, which has been
designated as a scientific reserve and
consists of 296 hectares (731 ac).
Seventy-one birds have been relocated
to Tuhua Island, and these birds appear
to be breeding successfully (Fauna
Recovery NZ 2012, p. 1).
At one time, the orange-fronted
parakeet was scattered throughout most
of New Zealand (Harrison 1970). During
the 19th century, the species’
distribution included South Island,
Stewart Island, and a few other offshore
islands of New Zealand (NZDOC 2009a),
but in the Southern Alps it is now only
found in a few North Canterbury valleys
(https://www.teara.govt.nz/en/small-
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forest-birds/10). This species
historically inhabited southern beech
forests, with a preference for areas
bordering stands of N. solandri
(mountain beech) (del Hoyo 1997;
Snyder et al. 2000; Kearvell 2002).
The South Island populations are
located within a 30-km (18.6-mi) radius
in beech (Nothofagus spp.) forests of
upland valleys (Hawdon and Poulter
valleys). These valleys are within
Arthur’s Pass National Park and the
Hurunui South Branch in Lake Sumner
Forest Park in Canterbury, South Island
(NZDOC 2009a). Orange-fronted
parakeets have been relocated to
predator-free Chalky Island in
Fiordland, Maud Island, Tuhua Island
off Tauranga, and in 2011, Blumine
Island (Butterfield 2011; Elliott and
Suggate 2007; Ortiz-Catedral and
Brunton 2009, p. 385). It is unclear
whether the population trend is
declining or stable (Fauna Recovery NZ
2012; NZDOC 2009a).
Factors Affecting the Species
There are several reasons for the
species’ continuing decline; one of the
most prominent factors affecting the
species is believed to be predation by
species that are not native to the island
such as stoats (Mustela erminea) and
rats (Rattus spp.) (NZ 2012, p. 1). Large
numbers of stoats and rats in beech
forests have caused large losses of
parakeets (NZDOC 2009c). Both species
of predators are excellent hunters on the
ground and in trees. They predate
parakeet nests in tree cavities, which
impacts primarily females, chicks, and
eggs (NZDOC 2009c).
Habitat loss and degradation are two
other factors that have affected the
orange-fronted parakeet’s suitable
habitat (NZDOC 2006, p. 2). Large areas
of native forest have been felled or
burned, decreasing the habitat available
for parakeets (NZDOC 2009c).
Silviculture of beech forests in the past
had removed trees at an age when few
would become mature enough to
develop suitable cavities for species
such as the orange-fronted parakeet
(Kearvell et al. 2002, p. 261). The
species’ habitat is also degraded by
brush-tailed possum (Trichosurus
vulpecula), cattle, and deer, which all
browse on plants, subsequently
changing the forest structure (NZDOC
2009c). This is problematic for the
orange-fronted parakeet, which feeds on
seeds and insects on the ground and
low-growing shrubs (Kearvell et al.
2002, p. 261).
Other impacts to this species’ viability
exist. These include: (1) Increased
competition between the orange-fronted
parakeet and the yellow-crowned
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parakeet for nest sites and food in a
habitat that has been significantly
modified by humans; (2) competition
with introduced finch species (species
unknown); and (3) competition with
introduced wasps (Vespula vulgaris and
V. germanica), which compete with
parakeets for invertebrates as a dietary
source (Kearvell et al. 2002).
Hybridization with other species was a
concern—the orange-fronted parakeet
was thought to hybridize with the
yellow-crowned parakeets (C. auriceps)
at Lake Sumner (Snyder et al. 2000).
However, researchers have introduced
orange-fronted parakeets to islands
where they are not likely to overlap in
range with other parakeet species (OrtizCatedral 2011, pp. 152–162).
Beak and Feather Disease Virus
(BFDV) has been a concern for the
NZDOC, and the disease was discovered
in wild native birds on South Island for
the first time in 2011 (Massaro et al.
2012, unpaginated). The disease affects
both wild and captive birds, with
chronic infections resulting in feather
loss and deformities of beak and
feathers. Birds usually become infected
in the nest by ingesting or inhaling virus
particles. Birds will either develop
immunity, die within a couple of weeks,
or become chronically infected. We
know of no vaccine in existence to
immunize populations. However, the
NZDOC is aware of the potential effect
on the species, and efforts are in place
to protect the orange-fronted parakeet
from this disease (Ortiz-Catedral et al.
2010, pp. 618–619).
Conservation Status
The NZDOC (2009b) considers the
orange-fronted parakeet to be the most
rare parakeet in New Zealand. Because
it is classified as ‘‘Nationally Critical’’
with a high risk of extinction, the
NZDOC has been working intensively to
ensure its survival. The species is also
listed as ‘‘critically endangered’’ on the
IUCN Red List. It is listed in Appendix
II of CITES; however, trade is not
currently a concern (CITES 2010).
The NZDOC closely monitors all
known populations of the orangefronted parakeet. Nest searches are
conducted, nest cavities are inspected,
and surveys are conducted in other
areas to look for evidence of other
populations. Because the NZDOC
determined that the species’ largest
threat is predation, they initiated a
program to remove predators in some
parts of the species’ range. ‘‘Operation
ARK’’ is an initiative to respond to
predator problems in beech forests in
order to prevent species’ extinctions,
including orange-fronted parakeets.
Predators are methodically controlled
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with traps, bait stations, bait bags, and
aerial spraying, when necessary (Wickes
et al. 2009). The NZDOC also
implemented a captive-breeding
program for the orange-fronted parakeet.
Using captive-bred birds from the
program, NZDOC established several
self-sustaining populations of the
orange-fronted parakeet on predator-free
islands. The NZDOC monitors wild nest
sites and is actively managing the
conservation of the species. Despite
these controls, predation by introduced
species is still a factor affecting the
species because predators have not been
completely eradicated from this species’
range.
In the previous ANOR, the orangefronted parakeet received an LPN of 8.
After reevaluating the factors affecting
the orange-fronted parakeet, we have
determined that no change in the
classification of the magnitude of threats
to the species is warranted because
NZDOC is actively managing the species
and the species’ population seems to
have stabilized. The orange-fronted
parakeet does not represent a monotypic
genus. Although the species’ available
suitable nesting habitat in beech forests
is extremely limited, translocations have
taken place and seem to be successful
(Fauna Recovery NZ 2012).
Additionally, the current population is
small (approximately 350 individuals),
and the species’ distribution is
extremely limited, but threats are being
mitigated. The species faces threats
(competition for food and suitable
nesting habitat within highly altered
habitat, predation, and habitat
degradation) that are moderate in
magnitude because the NZDOC has
taken measures to aid the recovery of
the species. However, because the
overall population of this species is very
small and it could be affected by BFDV,
we find that the threats to this species
are still imminent. Thus, the LPN
remains at 8 to reflect imminent threats
of moderate magnitude.
Uvea parakeet (Eunymphicus
uvaeensis), LPN = 8
Species and Habitat Description
The Uvea parakeet is endemic to a
small island in New Caledonia, and is
found primarily in old-growth forests,
specifically those dominated by the pine
tree Agathis australis (del Hoyo et al.
1997). The island is predominantly
limestone and lacks deep soil layers
(Boon et al. 2008, p. 257).
Uvea parakeets feed on fruit, berries,
and flowers and seeds of native trees
and shrubs (Robinet and Salas 2003, p.
71; del Hoyo et al. 1997). They also feed
on a few types of crops in cultivated
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land adjacent to their habitat. The
greatest number of birds is seen close to
gardens with papayas (BLI 2010f). A
significant characteristic is that Uvea
parakeets nest in cavities of native trees;
so the absence of suitable trees and
nesting cavities may be a limiting factor
(Robinet and Salas 2003, p. 71). Their
clutch size is generally two to three
eggs; and they are known to have
another clutch if the first set of eggs is
destroyed (BLI 2010f).
Taxonomy
The Uvea parakeet, previously known
as Eunymphicus cornutus, is now
´
recognized as a full species (Barre et al.
2010, p. 695; Boon et al. 2008, p. 251).
Research presented in 2008 indicates
that the Uvea parakeet, based on
genetic, ecological, behavioral, and
biogeographical evidence, is so
markedly distinct that it warrants status
as a species (Boon et al. 2008, p. 259).
ITIS considers the Uvea parakeet to be
a subspecies, Eunymphicus cornutus
uvaeensis (ITIS 2012, accessed July 17,
2012). However, based on the best
scientific and commercial data
available, we consider the Uvea
parakeet to be E. uvaeensis.
Habitat and Range
The Uvea parakeet is found only on
the island of Uvea (also known as both
´
Ouvea Island and Wallis Island) in the
Loyalty Archipelago, New Caledonia (a
territory of France) in the South Pacific
Ocean. The island is approximately
1,500 km (932 mi) east of Australia.
Uvea Island is 110 km2 (42 mi2) in size
(Juniper and Parr 1998). Most Uvea
parakeets occur in a forested area
consisting of about 20 km2 (7.7 mi2) in
the north of the island, although some
individuals are found in strips of forest
on the northwest isthmus and in the
southern part of the island, with a total
potential habitat of approximately 66
km2 (25.5 mi2) (BLI 2010f).
Population
One survey of Uvea parakeet in the
early 1990s estimated that the
population was between 70 and 90
individuals (Hahn 1993). However,
another survey in 1993 (Robinet et al.
1996) yielded an estimate of between
270 and 617 individuals. In 1999, it was
believed that 742 individuals lived in
northern Uvea, and 82 were in the south
of the Island (Primot 1999 as cited in
BLI 2010f). Six surveys conducted
between 1993 and 2007 indicated a
steady increase in population numbers
in both areas (Verfaille in litt. 2007 as
cited in BLI 2010f). The current
population estimate is between 1,280
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CITES from Appendix II in July 2000.
This action was due to its small
population size, restricted area of
Factors Affecting the Species
distribution, loss of suitable habitat, and
The primary factors that had affected
the illegal pet trade (CITES 2000b).
this species have been the capture of
Various conservation measures are in
juveniles for the pet trade (Barre et al.
place for this species. A recovery plan
2010, pp. 695, 699). Capture of juvenile
for the Uvea parakeet was developed by
parakeets for the pet trade involves
the Association for the Protection of the
cutting open nesting cavities to extract
´
Ouvea Parakeet for the period 1997–
nestlings, which renders the holes
2002, which included strong local
unsuitable for future nesting. However,
participation in population and habitat
since restrictions have been put into
monitoring (Robinet in litt. 1997 as cited
place and the species has been
in Snyder et al. 2000). A second
monitored in association with its
recovery plan was initiated in 2003. The
recovery plan (see Conservation Status
species increased in popularity and is
section below), it appears that nest
now celebrated as an island emblem
poaching is no longer occurring such
(Primot in litt. 1999 as cited in BLI 2009;
that it significantly affects this species
Robinet and Salas 1997). In-situ
(Barre et al. 2010, p. 699). Since
management (habitat protection and
conservation awareness programs and
restoration such as providing nest boxes
protections such as guards were put into and food) and public education about
place, the population has increased.
the Uvea parakeet and its habitat occur
However, because the human
(Barre et al. 2010, p. 699; Robinet et al.
population on the island is increasing,
1996). Increased awareness of the plight
encroachment and other factors
of the Uvea parakeet and improvements
continue to be concerns.
in law enforcement capability are
This species’ status is still tenuous
helping to address illegal trade of the
due to its small population size. The
species.
primary factors affecting this species are
In the previous ANOR, the Uvea
now believed to be the lack of nesting
parakeet received an LPN of 2. We
sites, predation, and competition from
reevaluated the threats to the Uvea
bees for nesting sites (Barre et al. 2010,
parakeet and determined that a change
pp. 695, 699; Robinet et al. 2003, pp. 73, in the LPN for the species is warranted
78). Introductions of Uvea parakeets to
because the population has significantly
the adjacent island of Lifou (to establish increased and now its population is
a second population) in 1925 and 1963
estimated to be between 1,280 and 3,413
failed (Robinet et al. 1995 as cited in BLI individuals. The Uvea parakeet does not
2009), possibly because of the presence
represent a monotypic genus and it is an
of ship rats and Norway rats (Robinet in island endemic with limited suitable
litt. 1997 as cited in Snyder et al. 2000). habitat (Barre et al. 2010, p. 695). The
Preventive measures have been taken
Uvea parakeet continues to experience a
at the main seaport of entry to the island
tenuous situation primarily due to the
and airport to prevent introduction of
lack of the old-growth forest on which
rats, but there is concern that rats may
the birds depend for nesting holes.
be accidentally introduced in the future
Management of the species has resulted
(BLI 2010, p. 3). As of 2010, the island
in an increase in the population;
was rat-free (Barre et al. 2010, p. 696).
therefore, the threats are moderate in
Although current Uvea parakeet
magnitude. Because the species has
numbers are increasing, any relaxation
increased in size due to conservation
of conservation efforts or introduction of
education, a ban on commercial trade
nonnative rats, other predators
and a reduction in poaching, we have
(particularly cavity-nesting bees, the
changed the LPN from 2 to 8 to reflect
ship rat, and the Norway rat), or
imminent threats of moderate
invasive species could lead to a rapid
magnitude.
decline (BLI 2010f; Robinet et al. 1998).
Helmeted woodpecker (Dryocopus
Artificial nests are being installed to
galeatus), LPN = 8
increase available nesting sites, and
BirdLife Suisse (ASPO) is continuing to
Species and Habitat Description
destroy invasive bees’ nests and is
The helmeted woodpecker is
placing hives in forested areas to attract
sympatric (co-occurs) with two other
bees for removal (Verfaille in litt. 2007
woodpeckers that are similar in
as cited in BLI 2010f).
appearance: the lineated woodpecker
Conservation Status
(Dryocopus lineatus) and the robust
This species is listed as ‘‘Endangered’’ woodpecker (Campephilus robustus).
The helmeted woodpecker is a fairly
on the IUCN Red List (IUCN 2012).
small woodpecker (27–29 cm (10.6–11.4
Protection for this species increased
in) in length). It has a cinnamon face,
when it was uplisted to Appendix I of
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and 3,413 individuals (IUCN 2012;
´
Barre et al. 2010, p. 695).
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containing no white markings, barred
underparts, brown-black wings, a white
rump, and a large, rounded red crest on
its head (Lammertink et al. 2012,
unpaginated). Common names for this
species include Carpintero cara canela
(Spanish) and pica-pau-de-cara-canela
(Portuguese). It typically forages in the
mid-story of the tree canopy and has
been observed eating larvae, ants,
berries, and small fruit (Bodrati,
personal observation). It prefers to nest
in tree cavities of dead or decaying
trees, but has been observed in tree
cavities of a live anchico tree
(Parapiptadenia rigida) and a live grapia
tree (Apueleia leiocarpa). Its habitat
type consists of tropical and subtropical
moist forests, tropical dry forests, and
mangrove forests at mostly low-tomedium elevations less than 1,000 m
(3,281 ft); however, altitude in the
Atlantic Forest region can reach as high
as 2,000 m (6,562 ft) above sea level.
This species exhibits an unusual
behavior of sharing nest cavities with
other bird species. It was observed
sharing a nest cavity with white-eyed
parakeets (Aratinga leucophthalma) in
2009 and with white-throated
woodcreepers (Xiphocolaptes albicollis)
in 2010. However, in one instance, there
was conflict between two species, and
the conflict may have resulted in clutch
failure of the helmeted woodpecker
(Lammertink et al. 2012, unpaginated).
Population
The helmeted woodpecker’s
population is believed to have declined
sharply between 1945 and 2000 in
conjunction with the clearing of mature
forest habitat (Lammertink et al. 2012).
Although forest clearing has recently
slowed, the population of this species is
still believed to be declining. Because
the helmeted woodpecker is difficult to
locate except when vocalizing and it is
silent most of the year, its population
size is difficult to determine. The most
recent estimate of its population is
between 400 and 8,900 individuals and
decreasing, but experts believe its
population is more likely closer to the
smaller estimate (Lammertink et al.
2012, unpaginated; Bodrati 2010,
unpaginated).
Range
This species is endemic to the
southern Atlantic forest region of
southeastern Brazil, eastern Paraguay,
and northeastern Argentina
(Lammertink et al. 2012, p. 1). Its
estimated range is likely between 25,000
and 40,000 km2 (9,653 and 15,444 mi2),
which is reduced from a historical
distribution of 661,330 km2 (255,341
mi2). The Atlantic Forest extends along
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the Atlantic coast of Brazil from Rio
Grande do Norte in the north to Rio
Grande do Sul in the south, and inland
as far as Paraguay and Misiones
Province of northeastern Argentina
(Conservation International 2007a, p. 1;
¨
Hofling 2007, p. 1; Morellato and
Haddad 2000, pp. 786–787). The
Atlantic Forest extends up to 600 km
(373 mi) west of the Atlantic Ocean.
The territory or home range
requirements for this species are
unclear, however, in 2010, two nests in
Intervales State Park, Brazil, were
located 2.4 km (1.49 mi) apart from each
other (Junior, pers. comm. in
Lammertink et al. 2012, unpaginated).
The species is not common anywhere it
is known to exist (BLI 2010h).
Lammertink et al. 2012 note that in oldgrowth sites this species may reach
densities estimated at one territory per
3 to 5 km2 (1.2 to 1.9 mi2) (Brooks et al.
1993, Esquivel pers. comm., Bodrati
pers. obs.).
In Paraguay, the species is known
from the eastern half of the country, in
the departments of Amambay, San
´
´
Pedro, Canindeyu, Caaguazu, Alto
´
´
´
´
Parana, Guaira, Cazaapa, Itapua, and
´
Paraguarı (Lammertink et al. 2012,
unpaginated; Collar et al. 1992, Hayes
1995). In Argentina, it is only known
from Misiones province. In Brazil, it
˜
occurs in the states of Sao Paulo,
´
Parana, Santa Catarina, and Rio Grande
do Sul.
It is found generally in mature
montane forest along the Atlantic coast
from sea level up to elevations of 1,000
m (3,280 ft). The species has been
recorded in degraded and small forest
patches; however, it is usually found in
or near large undisturbed forested tracts
(Cockle 2010; Chebez 1995b as cited in
BLI 2010h; Clay in litt. 2000 as cited in
BLI 2010h). This species is often absent
from large tracts of apparently suitable
habitat (Collar et al. 1992). For example,
local ornithologists indicate that large
´
portions of Iguazu National Park (550
km2 of mature forest), appear not to be
or are rarely used by this species
(Castelino and Somay in litt. in
Lammertink 2010, unpaginated).
Factors Affecting the Species
There is little information available
about this species, however, species
experts indicate that the factors affecting
the species include the reduction of
nesting sites, loss of connectivity of
suitable habitat, and widespread
deforestation (Kohler in litt 2010,
unpaginated; Cockle 2008 as cited in
BLI 2010h). Its range is believed to be
reduced to 20 percent of its original
habitat (Lammertink et al. 2012,
unpaginated). Between 92 and 95
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percent of the area historically covered
by tropical forests within the Atlantic
Forest biome has been converted or
severely degraded as a result of various
human activities (Butler 2007, p. 2;
Conservation International 2007a, p. 1;
¨
Hofling 2007, p. 1; The Nature
Conservancy (TNC) 2007, p. 1; World
Wildlife Fund (WWF) 2007, pp. 2–41;
Saatchi et al. 2001, p. 868; Morellato
and Haddad 2000, p. 786; Myers et al.
2000, pp. 853–854). Of this, less than
one percent of the remaining forest in
the range of the helmeted woodpecker is
original undisturbed habitat. Most of the
forest clearance in the Atlantic Forest
occurred between 1945 and 2000
ˆ
˜
(Galindo-Leal and de Gusmao Camera
2003), and this was likely the period
during which the helmeted
woodpecker’s population severely
declined (Lammertink et al. 2012,
unpaginated).
A significant portion of Atlantic
Forest habitat has been, and continues
to be, lost and degraded by various
ongoing human activities, including
logging, establishment and expansion of
plantations and livestock pastures,
urban and industrial developments
(including new hydroelectric dams),
slash-and-burn clearing, and both
intentional and accidental ignition of
fires (Critical Ecosystem Partnership
Fund (CEPF) 2001, pp. 9–15). Even with
the passage of a national forest policy
and in light of many legal protections in
Brazil, the rate of habitat loss
throughout the Atlantic Forest biome
has increased since the mid-1990s
(Rocha et al. 2005, p. 270; CEPF 2001,
p. 10; Hodge et al. 1997, p. 1). The
remaining sites where the helmeted
woodpecker currently exists may be lost
over the next several years (Rocha et al.
2005, p. 263). Furthermore, the
helmeted woodpecker’s population is
already highly fragmented, and its
population is believed to be declining
parallel with habitat loss (BLI 2010h).
Information suggests that this species
does not do as well in secondary,
although mature, forest than it does in
primary, undisturbed forested areas.
There may be an ecological component
that is missing from the secondary
forest; ecological interactions can be
complex and relationships may not
always be obvious. When habitat is
degraded, there is often a lag time before
the species losses are evident (Brooks et
al. 1999, p. 1140), so the helmeted
woodpecker may still be present,
despite the low quality of its habitat.
Further studies are needed to clarify this
species’ distribution and status.
This species may not be as
competitive as other species whose
range overlaps with the helmeted
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woodpecker. Other species, particularly
more aggressive woodpeckers, may
compete for nest sites, or they may use
fragmented and ‘‘edge’’ habitat more
effectively (Lammertink et al. 2012,
unpaginated; BLI 2010h). The lack of
nesting cavities is often a limiting factor
for bird species that depend on these
cavities for nesting (Sandoval and
Barrantes 2009, p. 75; Kyle 2006, p. 8).
In Paraguay, some viable, although
fragmented, habitat for this species
remains in San Rafael National Park
(Esquivel et al. 2007, pp. 301–302).
However, the park has undergone
logging and clearance, and is extremely
isolated from other mature forested
areas that might be suitable for the
helmeted woodpecker (Esquivel et al.
2007, p. 302). Fragmentation of
populations can decrease the fitness and
reproductive potential of the species,
which exacerbates other threats.
Conservation Status
The helmeted woodpecker is listed as
vulnerable by the IUCN (IUCN 2012). It
is not listed in any appendices of CITES
(CITES 2012). It is protected by
Brazilian law, and populations occur in
numerous protected areas throughout its
range such as Intervales State Park in
Brazil and in San Rafael National Park
in Paraguay (Esquivel et al. 2007, p. 301;
Lowen et al. 1996 as cited in BLI 2009;
Chebez et al. 1998 as cited in BLI 2009).
In the previous ANOR, the helmeted
woodpecker received an LPN of 8. After
reevaluating the available information,
we find that no change in the LPN for
the helmeted woodpecker is warranted.
The helmeted woodpecker does not
represent a monotypic genus. The
magnitude of threat to the species is
moderate because the species’ range is
fairly large. The threats are imminent
because the forest habitat upon which
the species depends is still being altered
and degraded. We will continue to
monitor the status of this species,
however, an LPN of 8 remains valid for
this species.
Okinawa woodpecker (Dendrocopos
noguchii syn. Sapheopipo noguchii),
LPN = 2
Taxonomy
Often there are differences in the
taxonomic classification of species. ITIS
recognizes the Okinawa woodpecker,
(also known as Pryer’s woodpecker) as
belonging to the monotypic genus
Sapheopipo (ITIS 2012, accessed
August 17, 2012). IUCN and BLI both
recognize this species as Dendrocopos
noguchii. Japan references it as
Sapheopipo noguchii (www.env.go.jp/
en/nature/biodiv/reddata.html,
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accessed September 30, 2010). Winkler
et al. (2005, pp. 103–109) analyzed
partial nucleotide sequences of
mitochondrial genes and concluded that
this woodpecker belongs in the genus
Dendrocopos which consists of several
species (not a monotypic genus). For the
purpose of this finding and absent peerreviewed information to the contrary,
we recognize it as D. noguchii and will
treat S. noguchii as a synonym.
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Species and Habitat Description
This species of woodpecker prefers
undisturbed, mature, subtropical
evergreen broadleaf forests, with tall
trees greater than 20 cm (7.9 in) in
diameter (del Hoyo 2002; Short 1982).
Trees of this size are generally more
than 30 years old, and as of 1991 were
confined to hilltops (Brazil 1991). The
species’ main breeding areas are thought
to be located along the mountain ridges
between Mt. Nishime-take and Mt. Iyutake, although it has been observed
nesting in well-forested coastal areas in
the northern part of the island (Research
Center, Wild Bird Society of Japan 1993,
as cited in BLI 2001). The majority of
the broadleaf trees in the Yanbaru area
are oak and chinquapin (Distylium
racemosum and Schefflera octophylla)
(Ito et al. 2000, p. 305). Areas with
conifers (Coniferae, cone-bearing trees
such as pines and firs) appear to be
avoided (Winkler et al. 1995; Short
1973). The Okinawa woodpecker was
also observed just south of the Mt. Tanodake in an area of entirely secondary
forest that was too immature for use by
woodpeckers to excavate nest cavities,
but these may have been birds displaced
by the clearing of mature forests (Brazil
1991).
The Okinawa woodpecker feeds on
large arthropods, notably beetle larvae,
spiders, moths, and centipedes, as well
as fruit, berries, seeds, acorns, and other
nuts (Winkler et al. 2005; del Hoyo
2002; Short 1982). It forages in oldgrowth forests with large, often
moribund trees, accumulated fallen
trees, rotting stumps, debris, and
undergrowth (Brazil 1991; Short 1973).
This species has been observed nesting
in holes excavated in large, old growth
trees such as Castanopsis cuspidate
(Japanese chinquapin) and Machilus
thunbergii (Tabu-no-ki tree) (del Hoyo
2002; Short 1982; Ogasawara and
Ikehara 1977). Both of these tree species
grow to approximately 20 meters (66 ft)
in height. It is thought that Castanopsis
is the preferred tree species for nesting
because it tends to be hollow with hard
wood, so that the nesting cavities are
more secure (Kiyosu 1965 in BLI 2001,
p. 1,880). The number of fledglings per
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season range between one and three
birds (BLI 2001, p. 1,880).
Range
The Okinawa woodpecker is endemic
to Okinawa Island, Japan. Okinawa is
the largest of the Ryukyu Islands, a
small island chain located between
Japan and Taiwan (Winkler et al. 2005;
Stattersfield et al. 1998; Brazil 1991).
Okinawa is approximately 646 km (401
mi) from Taiwan and 1,539 km (956 mi)
from Tokyo, Japan. The island is 108 km
(67 miles) in length and its width varies
between 3 and 27 km (2 to 17 mi).
Okinawa’s highest point is Mt. Yonaha
at 455 m (1,494 ft). The Okinawa
woodpecker is confined to forested
areas in the northern part of the island,
generally in the Yambaru (also known
as Yanbaru) area, particularly in the
Yonaha-dake Prefecture Protection Area.
Yambaru refers to the mountainous
areas of Kunigami County in northern
Okinawa.
Population
This species is considered one of the
world’s most rare extant woodpecker
species (Winkler et al. 2005). Many
observations of this species have
recently been made at the Jungle
Warfare Training Center, part of the
United States Marine Corps (USMC)
installation on Okinawa Island (USMC
in litt. 2012). During the 1930s, the
Okinawa woodpecker was considered
nearly extinct. In the early 1970s, it was
observed to be scattered among small
colonies and isolated pairs (Short 1973).
By the early 1990s, the breeding
population was estimated to be about 75
birds (BLI 2008a). In 2008, its projected
10-year decline was between 30 to 49
percent (BLI 2008b). The current
population estimate is between 100 and
390 mature individuals (BLI 2012).
Factors Affecting the Species
Deforestation and the fragmented
nature of its habitat due to logging, dam
construction, road-building, agricultural
development, and golf course
construction have been cited to be the
main causes of its reduced habitat and
decreased population (BLI 2010i).
Between 1979 and 1991, 2,443 ha (6,037
ac) of forest were destroyed in the
Yanbaru area (Department of
Agriculture, Okinawa Prefectural
Government 1992, in Ito et al. 2000, p.
311). As of 2001, there was only 40 km2
(15 mi2) of suitable habitat available for
this species (BLI 2001, p. 1882). Most of
the habitat loss appears to have ceased;
however, it still suffers from limited
suitable habitat and a small population
size (BLI 2012).
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The limited range and tiny population
make this species vulnerable to
extinction from disease and natural
disasters such as typhoons (BLI 2012, p.
54). In addition, the species may be
vulnerable to predators due to its
tendencies to forage close to the ground.
Feral dogs and cats, the introduced
Javan mongoose (Herpestes javanicus),
and weasel (Mustela itatsi) are likely
predators of the woodpecker (BLI 2012).
Conservation Status
Various protections and conservation
measures are in place for this species.
The species is categorized on the IUCN
Red List as critically endangered
because it consists of a small, declining
population estimated to be between 100
and 390 mature individuals (BLI 2012).
The species is legally protected in
Japan, and it occurs in small protected
areas in Yambaru (BLI 2012). The
Yambaru forested area in the Okinawa
Prefecture, was designated as a national
park in 1996 (BLI 2010i). The species is
also listed in the USMC’s 2009
Integrated Natural Resources
Management Plan in compliance with
the Japan Environmental Governing
Standards, to be used by Department of
Defense installations in Japan (USMC
2012). Additionally, conservation
organizations have purchased sites
where the woodpecker occurred in
order to establish private wildlife
preserves (del Hoyo et al. 2002; BLI
2008). It is not listed in any appendices
of CITES.
In the previous ANOR, the Okinawa
woodpecker received an LPN of 2. After
reevaluating the available information,
we find that no change in the LPN for
the Okinawa woodpecker is warranted.
The Okinawa woodpecker does not
represent a monotypic genus. It is
considered one of the world’s most rare
extant woodpecker species. The best
available information indicates that this
species is being actively monitored.
However, the threats to the species are
of high magnitude due to the scarcity of
old-growth habitat (only 40 km2 (15
mi2)) upon which the species is
dependent. Its very small population is
believed to still be declining, and
species with fragmented habitat in
combination with small population
sizes may be at greater risk of extinction
due to synergistic effects (Davies et al.
2004, pp. 265–271). Although it exists
in areas with protected status, the best
available information indicates that the
threats to the species continue to be
ongoing and imminent. Because the
species faces threats that are high in
magnitude due to its restricted
population size, past habitat loss,
endemism, and because the current
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population estimate ranges between 100
and 390 mature individuals, the LPN for
this species remains a 2 to reflect
imminent threats of high magnitude.
Yellow-browed toucanet
(Aulacorhynchus huallagae),
LPN = 2
Species and Habitat Description
There is very little information
available regarding the yellow-browed
toucanet. This species is endemic to
Peru and is known from only two
locations in north-central Peru—La
Libertad, where it is described as
uncommon, and Rio Abiseo National
Park, San Martin, where it is thought to
be very rare (BLI 2012b; del Hoyo et al.
2002; Wege and Long 1995). There was
also a report of yellow-browed toucanets
observed in the Leymebamba area (Mark
in litt. 2003, as cited in BLI 2010j) of
Peru, although there are no available
photos of this species to verify this
information.
Distinguishing features of the yellowbrowed toucanet include a bright yellow
vent or cloaca, a blackish bill, and a
generally green face, (Schulenberg and
Parker 1997, p. 719). Its call has been
described as a series of 20 to 30 frog-like
‘‘krik’’ notes, delivered at a rate of
slightly more than one note per second
(recordings housed in Cornell
Laboratory of Ornithology, Schulenberg
and Parker 1997, p. 717).
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Population and Range
The current population size is
believed to be 600–1,500 mature
individuals, with a decreasing
population trend (BLI 2012, p. 1).
The yellow-browed toucanet’s
estimated range is 450 km2 (174 mi2)
(BLI 2012). The species inhabits a
narrow altitudinal range between 2,125
and 2,510 m (6,970 and 8,232 ft). It
prefers a canopy of humid, epiphyteladen montane cloud forests,
particularly areas that support Clusia
trees (known as autograph trees) (del
Hoyo et al. 2002; Schulenberg and
˚
Parker 1997, pp. 717–718; Fjeldsa and
Krabbe 1990). Within the Clusia genus,
there are about 20 species.
The yellow-browed toucanet does not
appear to occupy all potentially suitable
forest available within its range
(Schulenberg and Parker 1997). The
narrow distributional band in which
yellow-browed toucanets are found may
be related to the occurrence of other
avian species that may outcompete the
yellow-browed toucanet. Both of the
suggested competitors have wider
altitudinal ranges that completely
encompass the range of the yellowbrowed toucanet (del Hoyo et al. 2002;
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24617
Clements and Shany 2001, as cited in
BLI 2008; Hornbuckle in litt. 1999, as
cited in BLI 2009; Collar et al. 1992).
The larger grey-breasted mountain
toucan (Andigena hypoglauca) occurs
above 2,300 m (7,544 ft), and the
emerald toucanet (Aulacorhynchus
prasinus) occurs below 2,100 m (6,888
ft) (Schulenberg and Parker 1997). The
yellow-browed toucanet may occur to
the north and south of its known range,
but the area between the Cordillera de
´
Colan, Amazonas, and the Carpish
´
region, Huanuco, is inaccessible for
surveying, and its existence in other
areas has not been confirmed.
coca-growers have taken over forest
within its altitudinal range (BLI 2010j).
The magnitude of threats to the species
is high given that the species has a very
small range and declining population
and may be in competition for habitat
with more competitive avian species.
Additionally, the only records of this
species are from two small locations,
and they have not been verified in
several years. Thus, the LPN for this
species remains a 2 to reflect imminent
threats of high magnitude.
Factors Affecting the Species
Deforestation, mining, and secondary
impacts associated with those activities
such as habitat degradation, erosion,
and contamination from mining waste
affect this species’ habitat. Deforestation
within its range has been widespread,
but has largely occurred at lower
elevations than habitat occupied by the
yellow-browed toucanet (Barnes et al.
1995; BLI 2009). However, coca growers
have taken over forests within its
altitudinal range, probably resulting in
some reductions in this species’ range
and population (BLI 2012; Plenge in litt.
1993, as cited in BLI 2009). Most of the
area in 1997 was described as being
only lightly settled by humans
(Schulenberg and Parker 1997).
However, the human population
surrounding the Rio Abiseo Park was
steadily increasing during the 15 years
prior to 2002, primarily due to the
advent of mining operations in the area
(Obenson 2002). Pressures in and
around the park exist due to mining and
those secondary impacts associated with
¨
¨
mining (Vehkamaki and Backman 2006,
pp. 1–2).
Taxonomy
Conservation Status
The yellow-browed toucanet is listed
as endangered on the IUCN Red List due
to its very small range and population
records from only two locations (BLI
2012). It occurs in at least one protected
area, the Rio Abiseo National Park, a
World Heritage Site which was
established to protect fauna (UNEP–
WCMC 2008, p. 1). It is not listed in any
appendices of CITES (CITES 2012). No
other protections are known, but see
Pauxi unicornis for a discussion of
applicable laws in Peru.
In the previous ANOR, the yellowbrowed toucanet received an LPN of 2.
After reevaluating the available
information, we find that no change in
the LPN for the yellow-browed toucanet
is warranted. The yellow-browed
toucanet does not represent a monotypic
genus. As of 2010, BLI reported that
Species and Habitat Description
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Brasilia tapaculo (Scytalopus
novacapitalis), LPN = 11
Within the Scytalopus genus, there
are several species (Raposo and Kirwan
2008, p. 80). The Brasilia tapaculo is a
common name that could refer to
several species within the Scytalopus
genus (Raposo et al. 2006, p. 37). S.
novacapitalis is described as occupying
the northwestern part of the overall
´
range (from Brasılia south to western
Minas Gerais—the central to southerncentral region of the country); S.
pachecoi is described as occupying Rio
Grande do Sul, Santa Catarina, and
northeastern Argentina; S.
diamantinensis is described as
occupying the northernmost part of
Brazil; and two species: S. speluncae
and Scytalopus sp. nov. (possibly S.
novacapitalis but the taxonomy is
unclear) occupy the central area of the
overall range (Raposo and Kirwan 2008,
p. 80; Raposo et al. 2006, p. 51). Both
BLI and ITIS recognize the Brasilia
tapaculo as Scytalopus novacapitalis
(BLI 2012; ITIS 2012, Accessed August
10, 2012). For the purpose of this
document, we will refer to S.
novacapitalis as the Brasilia tapaculo.
The Brasilia tapaculo is a small bird
endemic to Brazil. The Brasilia tapaculo
occupies the central to southern-central
region of the country (Brazilian Institute
of Environment and Renewable Natural
Resources (IBAMA) 2012; BLI 2012).
The Brasilia tapaculo is found in
swampy ‘‘gallery’’ forests. These forests
surround streams and rivers in regions
otherwise devoid of trees, within
disturbed areas of thick streamside
vegetation and dense secondary growth
of Pteridium aquilinum (bracken fern).
The Brasilia tapaculo is strongly
associated with two plant species:
Blechnum ferns and Euterpe palms (del
Hoyo et al. 2003, in BLI 2010k).
This species, S. novacapitalis, is
notably different from its congeners in
two ways. It is light grey with brown
fringed feathers on the rump and flanks
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and is morphologically almost identical
to S. speluncae (Raposo et al. 2006, p.
52). Additionally, the song of S.
novacapitalis consists on average of 1.1
notes per second, which is considerably
fewer than either S. notorius or S.
speluncae, whereas the duration of each
note lasts an average 0.1 seconds, as
opposed to either S. speluncae or S.
notorius, which never exceeded 0.05
seconds in any sample analyzed
(Raposo et al. 2006, p. 52).
Range
The species has been documented in
´
the state of Goias and in the state of
Minas Gerais, specifically in Serra da
Canastra National Park (BLI 2012;
Honkala and Niiranen 2010, p. 124; BLI
2008; Scaramuzza et. al. 2005, p. 49;
Silveira 1998, p. 55; Negret and
Cavalcanti 1985, as cited in Collar et al.
1992). The species occupies forested
areas within a range of approximately
109,000 km2 (42,085 mi2) but is still
likely losing habitat (BLI 2010j;
Scaramuzza et. al. 2005, p. 49). Its
distribution now may be larger than
believed when we were initially
petitioned to list this species in the
´
1980s. In Serra do Cipo and Caraca,
¸
which are in the hills and plateaus of
central Brazil, this species was located
at low densities (Collar et al. 1992). In
and around the Serra da Canastra
National Park, this species has in the
past been reported to be very common
(Honkala and Niiranen 2010, p. 124;
Silveira 1998, p. 3). In the Minas Gerais
area, the species was located at low
densities at Serra Negra (on the upper
Dourados River) and the headwaters of
˜
the Sao Francisco river in the early
1990s (Collar et al. 1992).
Population
There is no current population
estimate other than that the population
is decreasing in connection with habitat
loss and degradation (BLI 2012).
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Factors Affecting the Species
The swampy forests where it is found
are not as conducive to forest clearing
as other areas, leaving the species’
habitat less vulnerable to habitat loss
and degradation than previously
thought. The majority of locations
where this species is found are likely
within established protected nature
reserves such as Serra da Canastra. Both
fire risk and drainage impacts are
reduced in these areas (Antas in litt.
2007). However, dam building for
irrigation on rivers that normally flood
gallery forests may still impact this
species (Antas in litt. 2007; Teixeira in
litt. 1987, as cited in Collar et al. 1992).
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Its population has likely decreased in
connection with habitat loss.
Codfish Island fernbird (Bowdleria
punctata wilsoni), LPN = 12
Conservation Status
Taxonomy
There are five subspecies of Bowdleria
punctata, each restricted to a single
island in New Zealand and its outlying
islets. The North Island subspecies (M.
p. vealeae) and South Island subspecies
(M. p. punctatus) are described as
widespread and locally common. The
Stewart Island (M. p. stewartianus) and
the Snares (M. p. caudatus) subspecies
are described as being moderately
abundant (Heather and Robertson 1997).
IUCN and BLI only recognize the
species Bowdleria punctata; it is not
addressed at subspecies level. Neither
the species nor the subspecies is
addressed by ITIS (www.itis.gov,
accessed June 8, 2012). However, the
New Zealand Department of
Conservation (NZDOC) recognizes the
Codfish Island fernbird as a valid
subspecies. Because New Zealand
recognizes the subspecies, and absent
peer-reviewed information to the
contrary, we currently consider
Bowdleria punctata wilsoni to be a valid
subspecies within a multispecies genus.
The IUCN categorizes the Brasilia
tapaculo as ‘‘Near Threatened’’ (BLI
2012). It is not listed in any appendices
of CITES (CITES 2010). This species was
listed in Brazil’s Official List of Species
of Brazilian Fauna Threatened with
Extinction in 1989 under Ordinance No.
1522 of 19 December 1989, Law No.
7.735 of 1989 (IBAMA 1989, p. 6).
However, the Brasilia tapaculo is no
longer listed on Brazil’s List of Species
of Brazilian Fauna Threatened with
Extinction (IBAMA 2003). In 2005, a
team reviewed priority areas for
´
biodiversity conservation in Goias State,
and the Brasilia tapaculo was
considered to have a lower level of
vulnerability than many other species in
the state (Scaramuzza et. al. 2005, pp.
48–49).
Some of the areas where this species
occurs are protected. Three Important
Bird Areas (IBAs) have been identified
as important for this species: Parque
´
Nacional de Brasılia, Cerrados ao Sul de
´
Brasılia, and the Serra da Canastra
National Park. IBAs are a way to
identify conservation priorities (BLI
2012). A site is recognized as an IBA
when it meets criteria ‘‘* * *based on
the occurrence of key bird species that
are vulnerable to global extinction or
whose populations are otherwise
irreplaceable.’’ Criteria for sites for
conservation are those that are small
enough to be conserved in their entirety,
but large enough to support selfsustaining populations of the key bird
species.
In the previous ANOR, the Brasilia
tapaculo received an LPN of 8. After
reevaluating the available information,
we find that a change in the LPN for the
Brasilia tapaculo is warranted. The
Brasilia tapaculo does not represent a
monotypic genus. The magnitude of
threat to the species is moderate to low
because at least two of the populations
are in protected habitat which
ameliorate some factors affecting the
species; and its preferred habitat is
swampy and difficult to clear. Threats
are nonimminent, because it is found in
a number of habitats and is reported as
being common in some protected areas.
Because the species has such a wide
range and its distribution is likely larger
than believed when we were initially
petitioned to list this species in the
1980s, we find that, an LPN of 11 is
appropriate for this species, and we will
continue to monitor its status.
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Species Description
There is little information available
about this species. The Codfish Island
fernbird is found only on Codfish
Island, New Zealand. Codfish Island is
a nature reserve of 1,396 ha (3,448 ac)
located 3 km (1.8 mi) off the northwest
coast of Stewart Island (McClelland
2007). McClelland (2007) indicated that,
in the past, the Codfish Island fernbird
was restricted to low shrubland in the
higher areas of Codfish Island. Fernbirds
are sedentary and are not strong fliers.
They are secretive and reluctant to leave
cover and feed in low vegetation or on
the ground, eating mainly caterpillars,
spiders, grubs, beetles, flies, and moths
(Heather and Robertson 1997).
Population
Although there is no current estimate
of the size of the Codfish Island fernbird
population (estimates are based on
incidental encounter rates in the various
habitat types on the island), the
population as of 2007 was believed to be
several hundred. In 1966, the status of
the Codfish Island subspecies (B.
punctata wilsoni) was considered
relatively safe (Blackburn 1967), but
estimates dating from 1975 indicated a
gradually declining population to
approximately 100 individuals (Bell
1975 as cited in IUCN 1979). While
there are no accurate data on the
population size or trends on Putauhinu,
as of 2007, the numbers were estimated
to be between 200 and 300 birds spread
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over the island (McClelland 2007).
McClelland believes that the population
has likely stabilized (2007).
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Factors Affecting the Species
Codfish Island’s native vegetation has
been modified by the Australian brushtailed possum (Trichosurus vulpecula),
which was introduced to the Island.
Codfish Island fernbird populations
were also reduced due to predation by
weka and Polynesian rats (McClelland
2007; McClelland 2002, pp. 1–9; Merton
1974, pers. comm., as cited in IUCN
1979). The Codfish Island fernbird
population was reported to have
rebounded strongly with the removal of
predator species in the 1980s and 1990s
(McClelland 2007). Additionally, it
successfully recolonized forest habitat,
which greatly expanded its range.
However, because there is always the
chance that rats could reestablish a
population on the island; the island is
being monitored for rats. To safeguard
the Codfish Island fernbird, the NZ DOC
established a second population on
Putauhinu Island, a small 144-ha (356ac), privately owned island located
approximately 40 km (25 mi) south of
Codfish Island. The Putauhinu
population established rapidly, and
McClelland (2007) reported that it is
believed to be stable. Even with a
second population on Putauhinu Island,
the Codfish Island fernbird still remains
vulnerable to naturally occurring storm
events due to its restricted range,
predation, and small population size.
Conservation Status
The Codfish Island fernbird has
varying levels of conservation status. At
the species level, IUCN categorizes
Bowdleria punctata as least concern
(BLI 2010k); however, neither the IUCN
nor BLI addresses the subspecies
individually. The 2008 New Zealand
Threat Classification System manual
indicates that the two ‘‘at risk’’
categories: ‘‘range restricted’’ and
‘‘sparse’’ have been replaced by a single
category called ‘‘naturally uncommon’’
(p. 10). The NZDOC categorizes this
subspecies as ‘‘naturally uncommon.’’ It
is not listed in any appendices of CITES
(CITES 2010).
In the previous ANOR, the Codfish
Island fernbird received an LPN of 12.
After reevaluating the available
information, we find that no change in
the LPN for this subspecies is
warranted. The information available
indicates that the subspecies faces
threats that are low to moderate in
magnitude because: (1) It exists on an
island that is a nature reserve, and (2)
the removal of predators and the
establishment of a second population
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have allowed for a rebound in the
subspecies’ population. Although the
actual population numbers for this
subspecies are unknown (possibly
around 500 individuals), threats are
nonimminent because the conservation
measures have been successful.
Therefore, an LPN of 12 remains valid
for this subspecies. However, we will
continue to monitor the status of this
subspecies.
Ghizo white-eye (Zosterops
luteirostris), LPN = 2
Species and Habitat Description
There is little information available
about this species and its habitat
(Filardi 2012, pers. comm.). Its range is
estimated to be less than 35 km2 (13.5
mi2), of which less than 1 km2 (0.39
mi2) is old growth forest. The Ghizo
white-eye (also known as the splendid
white-eye) is described as ‘‘warblerlike.’’ Its physical characteristics
include silvery-white eye rings with
dark olive upper parts and its
underparts are bright yellow (BLI 2012).
The species has a black beak and
orange-yellow legs (BLI 2012). The
Ghizo white-eye is endemic to the small
island of Ghizo, which is 11 km long
and 5 km wide (7 by 3 mi). Ghizo is a
densely populated island in the
Solomon Islands in the South Pacific
Ocean, east of Papua New Guinea (BLI
2010m). As of 2005, the human
population on the island was estimated
to be approximately 6,670
(www.adb.org, accessed September 9,
2010).
Population
A very rough population estimate for
this species is between 250 and 1,000
mature individuals (BLI 2012).
However, it is based on (1) population
density estimates for close relatives with
a similar body size, and (2) the fact that
only a portion of its estimated extent of
occurrence is likely to be occupied (BLI
2012). In the 1990s, this species was
characterized as being locally common
in the remaining tall or old-growth
forest, which is very fragmented and is
now believed to be less than 1 km2 (0.39
mi2). It is unclear whether the
remaining habitat can support
sustainable breeding populations
(Filardi pers. comm. 2012, Buckingham
et al. 1995, as cited in BLI 2008).
Biologists familiar with this species
recommend that systematic surveys be
conducted for this species to verify its
status in the wild and to evaluate the
condition of its habitat and its
population. Although there are no data
on population trends, the species is very
likely declining due to habitat loss and
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degradation (Filardi pers. comm. 2012,
BLI 2012).
Factors Affecting the Species
This species’ small population is
likely declining due to habitat loss.
Areas around Ghizo Town, which
previously supported the species, have
been further degraded since the town
was devastated by a tsunami, and
habitat was found less likely able to
support the species in 2012 (Filardi in
litt. 2012). The tsunami in 2007
contributed to the loss of habitat to the
point where the area around Ghizo
town, which once contained the species,
has been deemed unable to support the
species (Filardi in litt. 2012 in BLI
2012). Extreme weather events are likely
to affect this species; however, little
information is available.
The species is also affected through
conversion of forested areas to
agricultural uses (BLI 2008). The very
tall old-growth forest on Ghizo is still
under pressure from clearance for local
use as timber, firewood, and gardens, as
are the areas of secondary growth,
which are already suboptimal habitats
for this species. Its very small
population is believed to still be
declining; and species with fragmented
habitat in combination with small
population sizes may be at greater risk
of extinction due to synergistic effects
(Davies et al. 2004, pp. 265–271).
Conservation Status
Few, if any, protections are in place
for this species. The IUCN Red List
classifies this species as endangered
because of its very small population that
is considered to be declining due to
habitat loss (Filardi 2012, pers. comm.,
BLI 2012). It is not listed in any
appendices of CITES (CITES 2012).
In the previous ANOR, the Ghizo
white-eye received an LPN of 2. After
reevaluating the available information,
we find that no change in the LPN for
this species is warranted. The Ghizo
white-eye does not represent a
monotypic genus. It faces threats that
are high in magnitude due to declining
suitable habitat and its small, declining
population size. The best available
information indicates that forest
clearing is occurring at a pace that is
rapidly denuding the habitat; secondary
growth is being converted to agricultural
purposes. Further, the human
population on the small island is likely
contributing to the reduction in oldgrowth forest for local uses such as
gardens and timber. The estimate of the
Ghizo white-eye population is believed
to be between 250 and 1,000
individuals, and its population trend is
believed to be declining. These threats
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to the species are ongoing, of high
magnitude, and imminent. Thus, based
on the best available scientific and
commercial information, the LPN
remains a 2 for this species.
Black-backed tanager (Tangara
peruviana), LPN = 8
Species and Habitat Description
This species’ physical characteristics
include an underbody color of blueturquoise and a pale red-brown vent or
cloaca. The male has a chestnut-colored
head and black back. The female is
duller and greener. It has a complex
distribution with seasonal fluctuations
in response to the ripening of Schinus
˜
fruit, at least in Rio de Janeiro and Sao
Paulo (BLI 2010n). It has been observed
visiting gardens and orchards of houses
close to forested areas. Its diet consists
primarily of fruit and to a smaller
extent, insects (Moraes and Krul 1997).
The black-backed tanager is endemic
to the coastal Atlantic forest region of
southeastern Brazil. The species has
˜
been documented in Rio de Janeiro, Sao
Paulo, Parana, Santa Catarina, Rio
Grande do Sul, and Espirito Santo (BLI
2010n; Argel-de-Oliveira in litt. 2000, as
cited in BLI 2008). The species is
generally restricted to Restinga habitat,
which is a Brazilian term that refers to
sandy forest habitat consisting of a
patchwork of vegetation types, such as
beach vegetation; open shrubby
vegetation; herbaceous, shrubby coastal
sand dune habitat; and both dry and
swamp forests distributed over coastal
plains (McGinley 2007, pp. 1–2; Rocha
et al. 2005, p. 263). This habitat type is
specific to the local nutrient-poor,
sandy, acidic soils of the Atlantic
Forest. In addition to being found in
undisturbed habitat, the black-backed
tanager has also been observed in
secondary forests (BLI 2008).
The Atlantic Forest extends up to 600
km (373 mi) west of the Atlantic Ocean.
It consists of tropical and subtropical
moist forests, tropical dry forests, and
mangrove forests at mostly low-tomedium elevations less than 1,000 m
(3,281 ft); however, altitude can reach as
high as 2,000 m (6,562 ft) above sea
level.
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Population
Within suitable habitat, the blackbacked tanager is generally not
considered rare (BLI 2010n). The
population estimate is between 2,500 to
10,000 individuals (BLI 2012). This
˜
species is more common in Sao Paulo
during the winter, and records from
Espirito Santo are only available from
the winter season. Additional
knowledge of the species’ seasonal
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movements would provide an improved
understanding of the species’
population status and distribution, but
populations currently appear small and
fragmented and are believed to be
declining, likely in response to
extensive habitat loss (BLI 2012).
Factors Affecting the Species
The primary factor affecting this
species is the rapid and widespread loss
of habitat. As of 2000, between 7 and 10
percent of its habitat remained intact
(Morellato and Haddad 2000, p. 786;
Oliveira-Filho and Fontes 2000, p. 794).
Based on a number of estimates, 92 to
95 percent of the area historically
covered by tropical forests within the
Atlantic Forest biome has been
converted or severely degraded as a
result of various human activities
(Butler 2007, p. 2; Conservation
¨
International 2007a, p. 1; Hofling 2007,
p. 1; TNC 2007, p. 1; WWF 2007, pp. 2–
41; Saatchi et al. 2001, p. 868; Morellato
and Haddad 2000, p. 786; Myers et al.
2000, pp. 853–854). In addition to the
overall loss and degradation of its
habitat, the remaining tracts of its
habitat are severely fragmented.
Its remaining suitable habitat in the
˜
areas of Rio de Janeiro and Sao Paulo
are affected by ongoing development of
coastal areas, primarily for tourism
enterprises (e.g., large hotel complexes,
beachside housing) and associated
infrastructure support (BLI 2012; WWF
2007, pp. 7 and 36–37; del Hoyo 2003,
p. 616). These activities have drastically
reduced the species’ abundance and
extent of its occupied range. These
activities affect the species’ continued
existence because populations are being
limited to highly fragmented patches of
habitat (BLI 2012). This species seems to
tolerate some environmental
degradation if there are well-preserved
stretches in its territory in which the
birds can seek shelter; however, we
expect habitat loss and degradation will
likely increase in the future.
Because this species inhabits coastal
areas, sea level rise may also affect this
species (Alfredini et al. 2008, pp. 377–
379). In Santos Bay on the coast, sea
level rise scenarios were investigated
based on predictions of sea level
increases between 0.5 and 1.5 m (1.6
and 4.9 ft) by the year 2100 (Alfredini
et al. 2008, pp. 378). Even small
increases in sea level may cause
flooding and erosion and could change
salt marsh zones within this species’
habitat (Alfredini et al. 2008, pp. 377–
379). As sea level rises, less habitat will
be available for this species. Habitat loss
due to sea level rise may be
compounded by an increased demand
by humans to use land for housing and
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infrastructure. The black-backed tanager
would likely attempt to move inland in
search of new suitable habitat as its
current habitat disappears. However,
there may not be enough suitable habitat
remaining for the species. Although
Brazil has several laws implementing
protection for species such as the blackbacked tanager and small portions of
this species’ range occur in six protected
areas, none of the protected areas are
supported by effective protection
according to BLI (2012). Its habitat is
under pressure from the intense
development that occurs in coastal
areas, particularly south of Rio de
Janeiro. These factors affecting the
black-backed tanager’s remaining
habitat are ongoing due to the
challenges that Brazil faces to balance
its competing development and
environmental priorities.
Conservation Status
The species is classified as vulnerable
by the IUCN (BLI 2012). The blackbacked tanager is not listed in any
appendices of CITES (CITES 2010).
Portions of the tanager’s range are in six
protected areas, although protections are
not always effective (BLI 2012). This
species is protected under the National
Environmental Policy Act (Law 6.938 of
1981), implemented by the Brazilian
Institute of the Environment and
Natural Resources (Instituto Brasileiro
do a Meio Ambiente de do Recursos
´
Naturais Renovaveis (IBAMA). The
basis of environmental law and policy
in Brazil is Article 225 of its
Constitution (Pereira Neto et al. 2011, p.
63).
In the previous ANOR, the blackbacked tanager received an LPN of 8.
After reevaluating the available
information, we find that no change in
the LPN for this species is warranted at
this time. The black-backed tanager does
not represent a monotypic genus.
Despite laws in place, its habitat
continues to diminish. We find that
threats (primarily habitat loss) to the
species are moderate in magnitude due
to the species’ fairly large range,
existence in protected areas, and
apparent flexibility in diet and habitat
suitability. Threats are imminent
because the species is at risk due to
ongoing and widespread loss of habitat
due to beachfront and related
development. Therefore, an LPN of 8
remains valid for this species.
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Lord Howe Island pied currawong
(Strepera graculina crissalis),
LPN = 6
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Taxonomy
The Lord Howe Island pied
currawong is a subspecies distinct from
the five mainland pied currawongs
(Strepera graculina spp.). In 2004, it was
suggested that its taxonomy be reviewed
to determine if it warrants recognition
as a distinct species (McAllan et al.
2004). ITIS recognizes only S. graculina
(ITIS 2012, accessed August 21, 2012)
rather than the subspecies. The
subspecies is not specifically addressed
by BLI or IUCN. Because Australia
recognizes the subspecies, and absent
peer-reviewed information to the
contrary, we consider S. graculina
crissalis to be a valid subspecies within
a multispecies genus.
Species Range and Habitat Description
This subspecies is endemic to Lord
Howe Island, New South Wales,
Australia. Lord Howe Island is 600 km
(373 mi) northeast of Sydney, Australia.
This is also the distance to the
subspecies’ closest relative, the
mainland pied currawong (S. graculina).
The Lord Howe pied currawong is
limited to an 18-km2 (6.95 mi2) area on
the 20-km2 (7.7-mi2) island
(Government of Australia 2012, p. 3). It
has been recorded to a limited extent on
small nearby islets of the Admiralty
group (New South Wales Department of
Environment & Climate Change (NSW
DECC) 2010; Garnett and Crowley 2000).
Lord Howe Island is unique among
inhabited Pacific Islands in that less
than 15 percent of the island has been
cleared (Wilkinson and Priddel 2011, p.
508) and less than 24 percent has been
disturbed (NSW Department of
Environment and Conservation (DEC)
2007a).
The Lord Howe pied currawong
breeds in rainforests and palm forests,
particularly along streams. Its territories
include sections of streams or gullies
that are lined by tall timber (Garnett and
Crowley 2000). The highest densities of
Lord Howe pied currawong nests have
been located on the slopes of Mount
Gower and in the Erskine Valley, with
smaller numbers on the lower land to
the north (Knight 1987, as cited in
Garnett and Crowley 2000). The nests
are typically situated high in trees and
are made in a cup shape with sticks and
lined with grass and palm thatch (NSW
DECC 2005). As of 2001, most of Lord
Howe Island was still forested.
The Lord Howe pied currawong is
omnivorous and eats a wide variety of
food, including native fruits and seeds
(Hutton 1991, Auld et al. 2009). It is the
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only remaining native island vertebrate
predator (NSW DECC 2010). It has been
recorded eating seabird chicks, poultry,
and chicks of the Lord Howe woodhen
(Tricholimnas sylvestris) and white tern
(Gygis alba). It also feeds on both live
and dead rats (Hutton 1991). Food
brought to Lord Howe pied currawong
nestlings by its parents was observed to
be, in decreasing order of frequency:
invertebrates, fruits, reptiles, and
nestlings of other bird species (Lord
Howe Island Board (LHIB) 2006).
Population
In the 2000 Action Plan for Australian
Birds (Garnett and Crowley 2000), the
Lord Howe pied currawong population
was estimated to be approximately 80
mature individuals. In 2007, the
Foundation for National Parks &
Wildlife (FNPW 2007) estimated that
the breeding population of the Lord
Howe pied currawong was between 80
and 100 pairs, with a nesting territory in
the tall forest areas of about 5 ha (12 ac)
per pair (Carlile 2007, pers. comm. in
Government of Australia 2012, p. 3).
The most recent population estimate
was between 100 and 200 individuals
(from surveys in 2005–2006) (NSW
DECC 2010, p. 3). It was recently
described as being widespread on the
island and occurring in urban areas
(Government of Australia 2012, p. 3);
however, a precise estimate of the
population is unavailable.
Factors Affecting the Species
The small population size makes this
species highly vulnerable to factors that
can be detrimental to its survival. Its
population size is limited by the amount
of available habitat and the lack of food
during the winter (FNPW 2007). Two
potential threats have been identified:
the introduction of exotic predators and
the persecution of the Pied Currawong
(Lord Howe Island) by humans in
retaliation to attacks on domestic and
endemic birds (Garnett & Crowley 2000;
Hutton 1991). On Lord Howe Island, ten
bird species have become extinct due to
hunting, introduced predators, and
competitors (Government of Australia
2012b, p. 633). The Lord Howe pied
currawong remains unpopular with
some residents, likely because of its
predatory nature on nestlings. The
incidence of shooting has declined since
the 1970s, when conservation efforts on
Lord Howe Island began (Hutton 1991),
but occasional shootings occurred as of
2007 (Carlile 2007, pers. comm.). It is
unclear what effect this localized killing
has on the overall population size and
distribution of the species (Garnett and
Crowley 2000).
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24621
The Lord Howe Island Pied
Currawong has persisted in reasonable
numbers despite the introduction of the
black rat (Rattus rattus) in 1918
(Fullagar & Disney 1975; McAllan et al.
2004). However, it may benefit from
previous rat eradication programs and a
rat eradication program that is currently
underway (The Daily Telegraph, July 20,
2012; Carlile 2007, pers. comm.). The
removal of feral animals has resulted in
the recovery of some forest understory
(WWF 2001).
Other factors affecting the species
include nontarget poisoning, and effects
associated with extremely small
population sizes (NSW DECC 2010).
Because the Lord Howe pied currawong
often preys on rats, it may be subject to
nontarget poisoning during rat-baiting
programs (Wilkinson and Priddel 2011,
p. 509; DEC 2007b). The Pied
Currawong may actually have benefited
from the introduction of some exotic
plants and animals that are now used as
a food source (Garnett & Crowley 2000;
McFarland 1994; Mills undated; Cooper
1990; Hutton 1991).
Habitat loss and degradation continue
to occur. All the forest areas adjacent to
clearings continue to suffer from
progressive dieback (Sinclair 2002, p. 6).
Sinclair notes that the Permanent Park
Preserve and Transit Hill are degrading
at the edges where rainforest trees
(which need to be buffered) are exposed
to strong winds. Close monitoring of the
population is needed because this small,
endemic population is highly
susceptible to the factors identified
above as well as catastrophic events
such as disease or introduction of a new
predator (Government of Australia
2012b, p. 633).
Conservation Status
Various levels of conservation and
protections exist for this subspecies. At
the species level, it is considered least
concern by the IUCN; the subspecies is
not addressed (BLI 2010o). It is not
listed in any appendices of CITES. The
NSW Threatened Species Conservation
Act of 1995 lists the Lord Howe pied
currawong as vulnerable due to its
extremely limited range (it only occurs
on Lord Howe Island) and its small
population size (NSW DECC 2010). The
pied currawong is also listed as
vulnerable under the Australian
Commonwealth Environment Protection
and Biodiversity Conservation Act of
1999. These laws provide a legislative
framework to protect and encourage the
recovery of vulnerable species (NSW
DEC 2006a). The Lord Howe Island Act
of 1953, as amended, (1) established the
Lord Howe Island Board (LHIB), (2)
made provisions for the LHIB to care,
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control, and manage the island; and (3)
established 75 percent of the land area
as a permanent park preserve (NSW
DEC 2007). Additionally, the Lord Howe
Island Biodiversity Management Plan
was finalized in 2007, and is the formal
Recovery Plan for threatened species
and communities of the Lord Howe
Island Group (DEC 2007a, Government
of Australia 2005, p. 574).
In the previous ANOR, the Lord Howe
pied currawong received an LPN of 6.
After reevaluating the threats to the
Lord Howe pied currawong, we have
determined that no change in the LPN
representing the magnitude and
imminence of threats to the subspecies
is warranted. The Lord Howe pied
currawong does not represent a
monotypic genus. It faces threats that
are high in magnitude due to a
combination of factors including its
extremely small population size,
nontarget poisoning, and habitat
clearing and modification. Despite
conservation efforts, the population of
the Lord Howe pied currawong has
remained around 100 to 200
individuals. Species with small,
declining population sizes such as these
may be at greater risk of extinction due
to synergistic effects of factors affecting
this species (Davies et al. 2004, pp. 265–
271). However, because conservation
efforts for the species have been
implemented, and the species is being
closely managed and monitored, we
find that the threats are nonimminent.
Thus, based on the best available
information, the LPN remains at 6 to
reflect nonimminent threats of high
magnitude.
Invertebrates
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Harris’ mimic swallowtail (Mimoides
(syn. Eurytides) lysithous
harrisianus), LPN = 6
Species and Habitat Description
Harris’ mimic swallowtail butterfly is
a subspecies endemic to Brazil (Collins
and Morris 1985). Although the species’
range historically included Paraguay,
the subspecies has not recently been
confirmed in Paraguay (Finnish
University and Research Network 2004;
Collins and Morris 1985). Occupying
the lowland swamps and sandy flats
above the tidal margins of the coastal
Atlantic Forest, the subspecies prefers
alternating patches of strong sun and
deep shade (Brown 1996; Collins and
Morris 1985). This subspecies is
polyphagous, meaning that its larvae
feed on more than one plant species
(Kotiaho et al. 2005). Information on its
preferred host plants and adult nectarsources was published in the status
review (also known as a 12-month
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finding) on December 7, 2004 (69 FR
70580). The Harris’ mimic swallowtail
butterfly mimics at least three butterfly
species in the Parides genus, including
the Fluminense swallowtail (described
below). This mimicry system makes it
difficult to distinguish this subspecies
from the species that it mimics (Brown
in litt. 2004; Monteiro et al. 2004).
Population
˜
˜
The Barra de Sao Joao colony is the
best-studied. Between 1984 and 2004,
the population maintained a stable size,
varying between 50 to 250 individuals
(Brown in litt. 2004; Brown 1996;
Collins and Morris 1985), and was
reported to be viable, vigorous, and
stable in 2004 (Brown in litt. 2004).
There are no estimates of the size of the
colony in Poco das Antas Biological
¸
Reserve where it had not been seen for
30 years prior to its rediscovery there in
1997 (Brown in litt. 2004). Population
estimates are lacking for the colony at
´
Macae, where the subspecies was netted
in Jurubatiba National Park in the year
2000, after having not been seen in the
area for 16 years (Monteiro et al. 2004).
Range
In Rio de Janeiro, Harris’ mimic
swallowtail has been confirmed in three
locations. Two colonies were identified
on the east coast of Rio de Janeiro, at
´
˜
˜
Barra de Sao Joao and Macae, and the
other in Poco das Antas Biological
¸
Reserve, farther inland. The range of
Harris’ mimic swallowtail overlaps two
protected areas: Poco das Antas
¸
Biological Reserve and Jurubatiba
National Park, and therefore it is
somewhat protected from habitat loss.
˜
˜
Both Barra de Sao Joao and the Poco das
¸
Antas Biological Reserve are within the
˜
˜
˜
Sao Joao River Basin. The Barra de Sao
˜
Joao River Basin encompasses a
216,605-ha (535,240-ac) area, of which
150,700 ha (372,286 ac) is managed as
a protected area. The Harris’ mimic
swallowtail was previously known in
Espirito Santo; however, there are no
recent confirmations of its occurrence
there (New and Collins 1991; Collins
and Morris 1985).
Factors Affecting the Species
Habitat destruction has been the main
threat to this subspecies (Brown 1996;
Collins and Morris 1985), especially
˜
˜
urbanization in Barra de Sao Joao,
´
industrialization in Macae (Jurubatiba
National Park), and previous fires that
occurred in the Poco das Antas
¸
Biological Reserve. As described in
detail for the Fluminense swallowtail
(below), Atlantic Forest habitat has been
reduced to 5 to 10 percent of its original
cover. More than 70 percent of the
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Brazilian population lives in the
Atlantic Forest region, and coastal
development is ongoing throughout the
Atlantic Forest region (TNC 2009; Butler
2007; Conservation International 2007;
¨
CEPF 2007a; Hofling 2007; Peixoto and
Silva 2007; Pivello 2007; WWF 2007;
Hughes et al. 2006).
Habitat destruction caused by fires in
the Poco das Antas Biological Reserve
¸
appears to have abated. The Reserve was
established to protect the golden lion
tamarin (Leontopithecus rosalia) (Decree
No. 73,791, 1974), but the Harris’ mimic
swallowtail, which occupies the same
range, likely benefits as a result of
efforts to conserve golden-lion-tamarin
habitat (Teixeira 2007; WWF 2003; De
Roy 2002). The revised management
plan indicates that the Reserve is to be
used for research and conservation with
limited public access (CEPF 2007a;
IBAMA 2005). The Jurubatiba National
Park is located in a region that is
undergoing continuing development
pressures from urbanization and
industrialization (Savarese 2008; Khalip
2007; Brown 1996; IFC 2002; CEPF
2007b; Otero and Brown 1984), and
there is no management plan in place
for the Park (CEPF 2007b). However, as
discussed for the Fluminense
swallowtail, the Park, as of 2007, was
considered to be in a very good state of
conservation (Rocha et al. 2007).
˜
As of 2004, conditions at Barra de Sao
˜
Joao appeared to be suitable for longterm survival of this subspecies. The
Harris’ mimic swallowtail’s preferred
environment of both open and shady
areas continues to be present in the
region, with approximately 541 forest
patches averaging 127 ha (314 ac) in
size, covering nearly 68,873 ha (170,188
ac), and a minimum distance between
forest patches of 276 meters (m) (0.17
mi) (Teixeira 2007). In studies between
1984 and 1991, Brown (1996)
determined that Harris’ mimic
˜
˜
swallowtails in Barra de Sao Joao flew
a maximum distance of 1,000 m (0.62
mi). It follows that the average flying
distance would be less than this figure.
Thus, the average 276-m (0.17-mi)
distance between forest patches in the
˜
˜
Barra de Sao Joao River Basin is clearly
within the flying distance of this
subspecies. Because the colony at Barra
˜
˜
de Sao Joao has maintained a stable
population for 20 years, it may be that
the conditions available there remain
suitable.
Another factor affecting butterfly
species is collection. Trade in wildlife
parts and products is extremely
lucrative, and, as wildlife becomes rarer,
it becomes worth more in value
(TRAFFIC 2010, pp. 52, 122, 179).
Although there are laws to prohibit
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illegal wildlife trade, in some countries,
laws are rarely enforced due to
inadequate resources; and only a
fraction of smuggled wildlife is
intercepted (TRAFFIC 2012, p. 4;
TRAFFIC 2010, p. 7). For example, in
1998, in the United States 100 Golden
Birdwing (Troides aeacus, CITES
Appendix II) butterflies were seized; no
permit had been issued for the
specimens, which had been falsely
labeled before being exported from
Thailand (TRAFFIC 2010, p. 28). In
2001, two Russian insect collectors were
arrested in India and were found to have
approximately 2,000 butterflies in their
possession (p. 52). In 2007, a Japanese
individual was convicted for illegal sale
of $38,831 U.S. dollars (USD) worth of
protected butterfly species. This
individual is apparently known as the
world’s top smuggler of protected
butterflies. One of the smuggled
butterfly species was Homerus
Swallowtail (Papilio homerus, CITES
Appendix I). During this investigation,
43 butterflies were sold to undercover
agents, including 2 Alexandra’s
birdwings (Ornithoptera alexandrae,
CITES Appendix I), 2 Luzon Peacock
swallowtails (Papilio chikae, CITES
Appendix I), and 6 Corsican
swallowtails (Papilio hospiton, CITES
Appendix I) (p. 122). In 2009, in Japan
an individual was sentenced to 1 year
and 6 months’ imprisonment and fined
1 million yen ($10,750 USD) due to
illegally importing and selling rare
butterfly species. He was found to have
illegally imported 145 butterflies from
France. Among the specimens were
three Queen Alexandra’s Birdwings
(Ornithoptera alexandrae, CITES
Appendix I) and one Apollo Butterfly
(Parnassius apollo, CITES Appendix II)
(p. 179).
The only known populations are
within close proximity to a major,
expanding city in Brazil—Rio de
Janiero, the second largest city in Brazil.
As this species becomes rarer, it
becomes even more desirable to
collectors (TRAFFIC 2010, pp. 52, 122,
179). Although the species exists in a
protected area, collectors will take risks
to obtain these rare and desirable
species. Although we do not know the
full extent of illegal trade, according to
the 2010 TRAFFIC report, this may
represent only a small fraction of the
illegal collection of butterfly species
that occurs.
Conservation Status
IBAMA considers this subspecies to
be critically imperiled (Portaria No.
1,522 1989; Ministerio de Meio
Ambiente 2003). As of 1996, collection
and trade of the subspecies was
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prohibited (Brown 1996). In 1998, Brazil
enacted the Lei de Crimes Ambientais
ou Lei da Natureza—Law no 9.605/98,
which addresses environmental crimes
and sets forth penal and administrative
penalties resulting from activities that
are harmful to the environment (IBAMA
2011). This law addresses the integrity
of biodiversity and other natural
resources and assesses civil,
administrative, and criminal penalties
to private individuals, corporations, and
businesses. Harris’ mimic swallowtail
was categorized on the IUCN Red List as
endangered in the 1988, 1990, and 1994
IUCN Red Lists (IUCN 1996). However,
it currently is not included in the
current IUCN Redlist (IUCN 2010;
Xerces Society 2010a). This species is
not listed on any appendices of CITES.
In the previous ANOR, the Harris’
mimic swallowtail received an LPN of 6.
After reevaluating the threats to this
species, we have determined that no
change in the listing prioritization
number is warranted. Harris’ mimic
swallowtail is a subspecies and is not
within a monotypic genus. Although the
best-studied colony has maintained a
stable and viable size for nearly two
decades, there is limited suitable habitat
remaining for this subspecies. Habitat
destruction remains a threat. These
threats are high in magnitude due to its
small endemic population, collection,
and potential catastrophic events such
as severe tropical storms or introduction
of a new disease or predator. Because
the population is very small and limited
to only two small areas, we find the
threats are of high magnitude. However,
we do not find that these threats are
imminent because the subspecies is
protected by Brazilian law, and the
colonies are located within protected
areas. Based on the best available
information, the LPN of 6 will remain to
reflect nonimminent threats of high
magnitude for this species.
Jamaican Kite Swallowtail
(Protographium marcellinus, syn.
Eurytides), LPN = 2
Species Description and Range
The Jamaican kite swallowtail
butterfly is endemic to Jamaica,
preferring wooded, undisturbed habitat
containing its only known larval host
plant: black lancewood or West Indian
lancewood (Oxandra lanceolata). The
food preferences of adults have not been
reported (Bailey 1994; Collins and
Morris 1985). Since the 1990s, adult
Jamaican kite swallowtails have been
observed in the parishes of St. Thomas
and St. Andrew in the east; westward in
St. Ann, Trelawny, and St. Elizabeth;
and in the extreme western coast, in the
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24623
Parish of Westmoreland (Garraway in
¨
litt 2011; Harris 2002; Mohn 2002; WRC
2001; Bailey 1994; Smith et al. 1994).
There is only one known breeding site
in the eastern coast town of Rozelle, St.
Thomas Parish, although it is possible
that other sites exist given the widely
dispersed nature of the larval food plant
(Garraway in litt 2011; Robbins in litt.
2004; Garraway et al. 1993; Bailey 1994;
Smith et al. 1994; Collins and Morris
1985).
Population
The Jamaican kite swallowtail
maintains a low population level; there
is no known estimate of its population
size (Garraway 2011 in litt). It
occasionally becomes locally abundant
in Kingston and Rozelle during the
breeding season in early summer and
again in early fall (Garraway in litt 2011;
Bailey 1994; Smith et al. 1994;
Garraway et al. 1993; Collins and Morris
1985; Brown and Heineman 1972), and
experiences episodic population
explosions (72 FR 20184; 69 FR 70580).
The population in St. Thomas has
generally been regarded as the core
population (Garraway in litt 2011).
Factors Affecting the Species
Habitat loss and degradation had been
considered to be the primary factors
affecting the Jamaican kite swallowtail;
however, now the primary factors
affecting the species are believed to be
its small population size and that it is
endemic only to Jamaica (Garraway in
litt 2011). After centuries of a high rate
of deforestation, the island lost much of
its original forest (Gartner et al., 2008,
pp. 8, 11; Berglund and Johansson 2004,
pp. 2, 5; Evelyn and Camirand 2003, p.
354; Koenig 2001, p. 206; Koenig 1999,
p. 9). Eight percent of the total land area
of Jamaica is covered with forest
classified as minimally disturbed closed
broadleaf (Evelyn and Camirand 2003 in
Strong in litt. 2011). Some of the
species’ most important habitat is
protected from human activities due to
the inaccessibility of the habitat, but
even these areas have been encroached
upon and degraded. However, in some
areas, its habitat is regenerating
(Garraway in litt. 2011).
Monophagous butterflies (meaning
that their larvae feed only on a single
plant species) such as the Jamaican kite
swallowtail tend to be more affected by
habitat degradation than polyphagous
species, due largely to their specific
habitat and ecological requirements
(Kotiaho et al. 2005). Harvest and
clearing has reduced the availability of
this species’ only known larval food
plant. In Rozelle, extensive habitat
modification for agricultural and
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industrial purposes such as mining has
diminished this species’ habitat (WWF
2001; Gimenez-Dixon 1996). When
habitat is altered through open-pit
mining, it is irreversibly modified and,
therefore, it is impossible to restore the
previous ecosystem. These sites can be
rehabilitated; however, a typical
reclaimed and rehabilitated site often
fails to regenerate with woody
vegetation (Strong in litt. 2011). As of
2004, black lancewood was being
impacted by clearing for cultivation and
by felling for the commercial timber
industry (Windsor Plywood 2004;
Collins and Morris 1985). However,
more recent information indicates that
its food source is more readily available
than previously believed (Garraway in
litt 2011).
Jamaica is subject to high-impact
stochastic events such as hurricanes.
Hurricane-related weather damage in
the last two decades along the coastal
zone of Rozelle has resulted in the
erosion and virtual disappearance of the
once-extensive recreational beach
(Economic Commission for Latin
America and the Caribbean (ECLAC),
United Nations Development
Programme (UNDP), and the Planning
Institute of Jamaica (PIOJ) (2004)).
Hurricane Ivan, a category 5 hurricane,
caused severe local damage to Rozelle
Beach in 2004, including road collapse
caused by the erosion of the cliff face
and shoreline. The estimated restoration
cost from Hurricane Ivan damage was
$23 million USD ($1.6 million Jamaican
dollars (J$) (ECLAC et al. 2004),
indicating the severity of the damage
inflicted by these hurricanes. While we
do not consider stochastic events to be
a primary factor affecting this species,
we believe that the damage caused by
hurricanes is contributing to habitat
loss.
The Jamaican kite swallowtail has
been collected for commercial trade in
¨
the past (Melisch 2000; Schutz 2000;
Collins and Morris 1985). The Jamaican
Wildlife Protection Act of 1998 carries
a maximum penalty of U.S. $1,439 (J
$100,000) or 12 months of
imprisonment for violating its
provisions. This deterrent appears to be
effectively protecting this species from
illegal trade (National Environment and
Planning Agency 2005). As of 2008, we
were unaware of any recent seizures
under the Lacey Act or smuggling of this
species into or out of the United States
(Office of Law Enforcement, U.S. Fish
and Wildlife Service, Arlington,
Virginia in litt.). With the legal
prohibition described below in effect,
however, the current impact of
collection is likely negligible (Garraway
in litt 2011).
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Conservation Status
Various levels of conservation exist
for the species. In addition to being
protected under Jamaica’s Wildlife
Protection Act of 1998, it is also
included in Jamaica’s National Strategy
and Action Plan on Biological Diversity.
This strategy established specific goals
and priorities for the conservation of
Jamaica’s biological resources
(Schedules of The Wildlife Protection
Act 1998). The Forest Act of 1996 and
the Forest Regulations Act of 2001
increased the power of Jamaican
authorities to protect the species’ habitat
(Gartner et al. 2008, pp. 9–10). These
included mandates to determine the
biodiversity in the forest as well as the
ability to acquire private lands as forest
reserves. Since 1985, the Jamaican kite
swallowtail has been categorized on the
IUCN Red List as ‘‘Vulnerable’’ (IUCN
2012). This species is not listed in any
of the appendices of CITES (CITES
2012).
In the previous ANOR, the Jamaican
kite swallowtail received an LPN of 2.
After reevaluating the factors affecting
the Jamaican kite swallowtail, we have
determined that no change in the listing
priority number is warranted. The
Jamaican kite swallowtail does not
represent a monotypic genus. The
current factors affecting the species are
high in magnitude particularly since
there is only one known larval host
plant. There is only one known breeding
site and the species’ larval food plant
has a restricted distribution. In addition,
stochastic events such as hurricanes and
tropical storms are unpredictable but are
likely to occur. Although Jamaica has
taken regulatory steps to preserve native
swallowtail habitat, the threats affecting
this species are imminent; it has a very
small population size, and habitat
destruction based on hurricanes and
tropical storms is very likely to occur.
Based on a reevaluation of the threats to
this species, the LPN remains a 2 to
reflect imminent threats of high
magnitude.
Fluminense Swallowtail (Parides
ascanius), LPN = 5
Species and Habitat Description
The Fluminense swallowtail is a
white and rose swallowtail butterfly
endemic to Brazil’s restinga habitat
within the Atlantic Forest region in the
tropical and subtropical moist broadleaf
forests of southeastern coastal Brazil
(Uehara-Prado and Fonesca 2007, p.
265; Thomas 2003). Its habitat is
characterized by medium-sized trees
and shrubs that are adapted to coastal
conditions (Kelecom et al 2002, p. 171).
During the caterpillar stage of its
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lifecycle, it feeds on Aristolochia
macroura (Dutchman’s pipe) and is
believed to be monophagous (Otero and
Brown 1984).
Range
One study predicted the species
potentially occurs in an area of
1,675,457 ha (4,140,127 ac) within the
State of Rio de Janeiro (Uehara-Prado
and Fonseca 2007, p. 265). While the
presence of suitable habitat should not
be used to infer the presence of a
species, it can facilitate more focused
efforts to identify and confirm
additional locations and the
conservation status of the Fluminense
swallowtail (Uehara-Prado and Fonseca
2007, p. 266). The only known
occurrences of the Fluminense
swallowtail correlated with existing
protected areas within Rio de Janeiro,
including the Poco das Antas Biological
¸
Reserve (Uehara-Prado and Fonseca
2007). This Reserve, established in
1974, encompasses 13,096 ac (5,300 ha)
of inland Atlantic Forest habitat (CEPF
2007a; Decree No. 73,791, 1974). The
Poco das Antas Biological Reserve and
¸
the Jurubatiba National Park are the
only two protected areas considered
large enough to support viable
populations of the Fluminense
swallowtail (Brown in litt. 2004;
Robbins in litt. 2004; Otero and Brown
1984).
In Rio de Janeiro, the species has been
documented in five locations including:
´
˜
˜
Barra de Sao Joao and Macae (in the
Restinga de Jurubatiba National Park)
along the coast; and farther inland at the
Poco das Antas Biological Reserve
¸
(Brown in litt. 2004). Other verified
´
occurrences were in the Area de
´
Tombamento do Mangue do Rio Paraıba
do Sul and in Parque Natural Municipal
do Bosque da Barra (Instituto Iguacu
2008; Uehara-Prado and Fonseca 2007).
Population
This swallowtail species is sparsely
distributed throughout its range,
reflecting the patchy distribution of its
preferred habitat (Uehara-Prado and
Fonseca 2007; Tyler et al. 1994; Otero
and Brown 1984). The species is
described as being seasonally common,
with sightings of up to 50 individuals
˜
seen in one morning in the Barra de Sao
˜
Joao area. It was historically seen in Rio
˜
de Janeiro, Espirito Santo, and Sao
Paulo (Gelhaus et al. 2004). However,
there are no recent confirmations of this
˜
species in either Espirito Santo or Sao
Paulo.
A population estimate reported in
˜
˜
1984 in Barra de Sao Joao was between
20 and 100 individuals (Otero and
Brown 1984). The colony within the
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Poco das Antas Biological Reserve was
¸
rediscovered in 1997, after a nearly 30year absence from this location (Brown
in litt. 2004). Researchers noted only
that ‘‘large numbers’’ of swallowtails
were observed (Brown in litt. 2004;
Robbins in litt. 2004). There are no
population estimates for other colonies.
However, individuals from the
population considered to be the most
˜
˜
viable in Barra de Sao Joao migrate
widely in some years, and this is likely
to enhance gene flow among colonies
(Brown in litt. 2004).
Factors Affecting the Species
Habitat destruction has been the main
factor affecting this species (Brown
1996; Gimenez Dixon 1996; Collins and
Morris 1985). Monophagous butterflies
tend to be more susceptible to habitat
degradation than polyphagous species
(Kotiaho et al. 2005, p. 1,966), and the
restinga habitat preferred by Fluminense
swallowtails is a highly specialized
environment that is restricted in
distribution (Ueraha-Prado and Fonseca
2007, p. 264; Brown in litt. 2004; Otero
and Brown 1986). Fluminense
swallowtails require large areas to
maintain viable populations (UeharaPrado et al. 2007, pp. 43–53; Brown in
litt. 2004; Otero and Brown 1986). The
Atlantic Forest habitat, which once
covered 1.4 million km2 (540,543 mi2),
has been reduced to between 5 and 10
percent of its original cover. It also
contains more than 70 percent of the
Brazilian human population (TNC 2009;
Butler 2007; Conservation International
¨
2007; CEPF 2007a; Hofling 2007; WWF
2007). The restinga habitat upon which
this species depends was reduced by 17
km2 (6.56 mi2) each year between 1984
and 2001, equivalent to a loss of 40
percent of restinga vegetation over the
17-year period (Temer 2006,
unpaginated). In addition, of the forest
that remains, 83 percent exists in small
fragments of less than 50 ha (123 acres).
The major ongoing human activities that
have resulted in habitat loss,
degradation, and fragmentation include:
conversion to agriculture, plantations,
livestock pastures, human settlements,
hydropower reservoirs, commercial
logging, subsistence activities, and
coastal development (Butler 2007;
Pivello 2007; TNC 2007; Peixoto and
Silva 2007; WWF 2007; Hughes et al.
2006).
Collection and commercial
exploitation was identified as a factor
affecting the Fluminense swallowtail
(Collins and Morris 1985; Melisch 2000;
¨
Schutz 2000). The species is easy to
capture. Species with restricted
distributions or localized populations,
such as the Fluminense swallowtail,
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tend to be more vulnerable to
overcollection than those with a wider
distribution (Brown in litt. 2004;
Robbins in litt. 2004).
Parasitism has been indicated to be
another factor affecting the Fluminense
swallowtail. Recently, Tavares et al.
(2006) discovered four species of
parasitic chalcid wasps (Brachymeria
and Conura species; Hymenoptera
family) associated with Fluminense
swallowtails. Parasitoids are species
whose immature stages develop on or
within an insect host of another species,
ultimately killing the host (Weeden et
al. 1976). This is the first report of
parasitoid association with Fluminense
swallowtails (Tavares et al. 2006, p.
1,197). To date, there is no information
regarding the magnitude of effect these
parasites are having on the Fluminense
swallowtail.
Although the Fluminense swallowtail
and the Harris’ mimic swallowtail face
similar threats, there are several
dissimilarities that influence the
magnitude of these threats. Fluminense
swallowtails are monophagous (Kotiaho
et al. 2005; Otero and Brown 1984). In
contrast, Harris’ mimic swallowtail is
polyphagous (Brown 1996; Collins and
Morse 1985); its larvae feed on more
than one plant species (Kotiaho et al.
2005). In addition, although their ranges
overlap, Harris’ mimic swallowtails
tolerate a wider range of habitat than the
highly specialized restinga habitat
preferred by the Fluminense
swallowtail. Also unlike the Harris’
mimic swallowtail, Fluminense
swallowtails require a large area to
maintain a viable population (Brown in
litt. 2004; Monteiro et al. 2004); in part
because they are known to feed on only
one food source.
According to the 2005 management
plan (IBAMA 2005), the Poco das Antas
¸
Biological Reserve is used solely for
protection, research, and environmental
education. Public access is restricted,
and there is an emphasis on habitat
conservation, including protection of
´
˜
˜
the Rıo Sao Joao. This river runs
through the Reserve and is integral to
maintaining the restinga conditions
preferred by the Fluminense
swallowtail. The Reserve was plagued
by fires in the late 1980s through the
early 2000s, but fire is not currently
believed to be a factor affecting the
species. Between 2001 and 2006, there
was an increase in the number of private
protected areas near or adjacent to the
Poco das Antas Biological Reserve and
¸
˜
˜
Barra de Sao Joao (Critical Ecosystem
Partnership Fund (CEPF) 2007a).
Corridors have been planned or created
to connect existing protected areas and
13 privately protected forests by
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planting and restoring habitat
previously cleared for agriculture or by
fires, which should assist the habitat
connectivity for this species (De Roy
2002, unpaginated).
The Jurubatiba National Park (14,860
´
ha; 36,720 mi2), located in Macae and
established in 1998 (Decree of April 29
1998), is one of the largest contiguous
areas containing restinga habitat under
protection in Brazil (CEPF 2007b; Rocha
´
et al. 2007). The Macae River Basin
forms the outer edge of the Jurubatiba
National Park and contains the habitat
preferred by the Fluminense swallowtail
((International Finance Corporation
(IFC) 2002; Brown 1996; Otero and
Brown 1984). Rocha et al. (2007)
described the habitat as being in a very
good state of conservation, but lacking
a formal management plan. Threats to
´
the Macae region include
industrialization for oil reserve and
power development (IFC 2002) and
intense population pressures (including
migration and infrastructural
development) (Brown 1996; CEPF
2007b; IFC 2002; Khalip 2007; Otero
and Brown 1984; Savarese 2008). The
researchers concluded that the existing
protected area system may be
inadequate for the conservation of this
species.
Conservation Status
Brazil categorizes the Fluminense
swallowtail to be ‘‘Imperiled’’ (Portaria
No. 1,522 1989; MMA 2003). Commerce
in this species is strictly prohibited
(Brown in litt. 2004). According to the
2012 IUCN Red List, the Fluminense
swallowtail has been classified as
‘‘Vulnerable’’ since 1983, based on its
distribution and habitat fragmentation
and loss that has occurred within its
predicted range. This species has not
been formally considered for listing in
the appendices to CITES
(www.cites.org). However, the European
Commission listed Fluminense
swallowtail on Annex B of Regulation
338/97 in 1997 (Grimm in litt. 2008),
and the species continues to be listed on
this Annex (Eur-Lex 2008, verified
August 20, 2012). There has been no
legal trade of this species into the
European Union since its listing on
Annex B (Grimm in litt. 2008), nor are
we aware of any recent reports of
seizures under the Lacey Act or
smuggling in this species into or out of
the United States (Office of Law
Enforcement, U.S. Fish and Wildlife
Service, Arlington, Virginia in litt.
2008).
In the previous ANOR, the
Fluminense swallowtail received an
LPN of 5. After reevaluating the factors
affecting the Fluminense swallowtail,
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we have determined that no change in
the listing priority number is warranted.
The Fluminense swallowtail does not
represent a monotypic genus. The
species is currently affected by habitat
destruction; however, we have no
information to suggest that
overutilization and parasitism are
currently occurring such that they are
threats to the Fluminense swallowtail.
Habitat destruction is of high magnitude
because the species: (1) Occupies highly
specialized habitat; (2) requires large
areas to maintain a viable colony; and
(3) is only found within two protected
areas considered to be large enough to
support viable colonies. However,
additional populations have been
reported, increasing previously known
population numbers and distribution.
The threat of habitat destruction is
nonimminent because most habitat
modification is the result of historical
destruction that has resulted in
fragmentation of the current landscape;
however, the potential for continued
habitat modification exists, and we will
continue to monitor the situation. Based
on the conservation measures in place,
we believe that overutilization is not
currently a threat to the Fluminense
swallowtail. On the basis of this
information, the Fluminense
swallowtail retains a priority rank of 5.
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Hahnel’s Amazonian Swallowtail
(Parides hahneli), LPN = 2
Species and Habitat
Hahnel’s Amazonian swallowtail is
endemic to Brazil and is found only on
sandy beaches where the habitat is
overgrown with dense scrub vegetation
(Tyler et al. 1994; New and Collins
1991; Collins and Morris 1985).
Hahnel’s Amazonian swallowtail is
likely monophagous. This swallowtail
depends upon highly specialized
habitat—beaches of river drainage areas.
Wells et al. (1983) describe the habitat
as ancient sandy beaches covered by
scrubby or dense vegetation that is not
floristically diverse. The larval hostplant is believed to be a species in the
Dutchman’s pipe genus, either
Aristolochia lanceolato-lorato or A.
acutifolia (Tyler et al. 1994; Collins and
Morris 1985).
Hahnel’s Amazonian swallowtail is
known from three locations along the
tributaries of the middle and lower
Amazon River basin in the states of
´
Amazonas and Para (Brown 1996; Tyler
et al. 1994; New and Collins 1991;
Collins and Morris 1985). Hahnel’s
Amazonian swallowtail is highly
localized, reflecting the distribution of
its highly specialized preferred habitat
(Brown in litt. 2004).
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Population
Conservation Status
The population size of Hahnel’s
Amazonian swallowtail is not known,
nor do we have information on any
population trend for this species.
Within its range, Hahnel’s Amazonian
swallowtail populations are described
as being small (Brown in litt. 2004).
Hahnel’s Amazonian swallowtail
continues to be listed as ‘‘Data
Deficient’’ by the IUCN Red List (IUCN
2012). Hahnel’s Amazonian swallowtail
is listed as endangered on the state of
´
Para’s list of threatened species
(Resolucao 054 2007; Decreto No. 802
¸˜
2008; Secco and Santos 2008). Hahnel’s
Amazonian swallowtail is not listed in
any Appendices of CITES (CITES 2012).
Hahnel’s Amazonian swallowtail is
listed on Annex B of Regulation 338/97
(Eur-Lex 2008), and there has been no
legal trade in this species into the
European Union since its listing on
Annex B in 1997 (Grimm in litt. 2008).
In our previous ANOR, the Hahnel’s
Amazonian swallowtail received an
LPN of 2. After reevaluating the threats
to the Hahnel’s Amazonian swallowtail,
we have determined that no change in
the LPN is warranted. This swallowtail
does not represent a monotypic genus.
It faces threats that are high in
magnitude and imminence due to its
small endemic population, and limited
and decreasing availability of its highly
specialized habitat (beaches of river
drainage area) and food sources. Dam
construction, waterway crop transport,
clearing for agriculture and cattle
´
grazing are ongoing in Para and
Amazonas. These threats are imminent
due to the species’ highly localized and
specialized habitat requirements.
Secondary concerns are possible illegal
collection and competition with other
species. Based on a reevaluation of the
threats, the LPN remains a 2 to reflect
imminent threats of high magnitude.
Factors Affecting the Species
Habitat alteration (e.g., for dam
construction and waterway crop
transport) and destruction (e.g., clearing
for agriculture and cattle grazing) are
´
ongoing in Para and Amazonas where
this species is found (Hurwitz 2007;
Fearnside 2006). Researchers believe
that, because Hahnel’s Amazonian
swallowtail has extremely limited
habitat preferences, any sort of river
modification such as impoundment,
channelization, or levee construction
would have an immediate and highly
negative impact on the species (New
and Collins 1991; Wells et al. 1983).
Competition for host plants has been
identified as a potential factor affecting
Hahnel’s Amazonian swallowtail.
Researchers in the past believed that
this species might suffer from host plant
competition with other butterfly species
in the region (Brown 1996; Collins and
Morris 1985; Wells 1983). It occupies
the same range with another swallowtail
butterfly, Parides chabrias ygdrasilla,
and mimics at least two other genera
that occupy the same area, Methona and
Thyrides (Brown 1996). However, this
competition has not been confirmed,
and, at this time, there is insufficient
information to conclude that this is a
factor affecting this species.
This species of swallowtail has been
collected for commercial trade (https://
www.johnnyvalencia.com/?tag=parides¨
hahneli; Melisch 2000; Schutz 2000;
Collins and Morris 1985). Species with
restricted distributions or localized
populations, such as the Hahnel’s
Amazonian swallowtail, are more
vulnerable to collection than those with
a wider distribution (Brown in litt. 2004;
Robbins in litt. 2004). Although not
strictly protected from collection
´
throughout Brazil, the state of Para
recently declared the capture of
Hahnel’s Amazonian swallowtail for
purposes other than research to be
forbidden (Decreto No. 802, 2008). As of
2008, seizures under the Lacey Act of
Hahnel’s Amazonian swallowtail into or
out of the United States had not been
reported (Office of Law Enforcement,
U.S. Fish and Wildlife Service,
Arlington, Virginia in litt. 2008). The
best available information does not
indicate that collection is impacting the
species.
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Kaiser-I-Hind Swallowtail
(Teinopalpus imperialis), LPN = 8
Species Description and Range
The Kaiser-I-Hind swallowtail is
native to the Himalayan regions of
Bhutan, China, India, Laos, Myanmar,
Nepal, Thailand, and Vietnam
(TRAFFIC 2007; Baral et al. 2005; Food
and Agriculture Organization (FAO)
2001; Igarashi 2001; Masui and Uehara
2000; Forest Resources Assessment
Program of Bhutan 1999; Osada et al.
1999; Tordoff et al. 1999; Trai and
Richardson 1999; Shrestha 1997). This
species prefers undisturbed (primary),
heterogeneous, broad-leaved-evergreen
forests or montane deciduous forests,
and is found at altitudes between 1,500
and 3,050 m (4,921 to 10,000 ft)
(Igarashi 2001; Tordoff et al. 1999;
Collins and Morris 1985). This species
is polyphagous. It has been reported that
the adult Kaiser-I-Hind swallowtails do
not feed, but this remains unclear
(Collins and Morris 1985). Larval host-
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plants may differ across the species’
range, but they include:
Magnolia campbellii in China (Sung
and Yan 2005; Yen and Yang 2001;
Igarashi and Fukuda 2000);
Magnolia spp. in Vietnam (Funet
2004);
Daphne spp. in India, Nepal, and
Myanmar (Funet 2004); and
Daphne nipalensis also in India
(Robinson et al. 2004).
Populations
Despite the species’ widespread
distribution, local populations are
described as not being abundant
(Collins and Morris 1985). The known
locations within each range country are
as follows:
Bhutan: The species was reported to
be extant (still in existence) in Bhutan
(FRAP 1999; Gimenez Dixon 1996),
although specific details on locations or
population information are not readily
available.
China: The species has been reported
in Fuji, Guangxi, Hubei, Jiangsu,
Sichuan, and Yunnan Provinces (Sung
and Yan 2005; Igarashi and Fukuda
2000; UNEP-WCMC 1999; Gimenez
Dixon 1996; Collins and Morris 1985).
India: Assam, Manipur, Meghalaya,
Sikkim, and West Bengal (Bahuguna
1998; Collins and Morris 1985; Gimenez
Dixon 1996; Ministry of Environment
and Forests 2005). There is no recent
status information on this species
(Bombay Natural History Society in litt.
2007) with the exception of the region
of Assam where the species had not
been sighted in several years (Barua et
al. 2010, p. 8).
Laos: The species has been reported
in Laos (Osada et al. 1999), but no
further information is available
(Vonxaiya in litt. 2007).
Myanmar: The species has been
reported in Shan, Kayah (Karen) and
Thaninanthayi (Tenasserim) states
(Collins and Morris 1985; Gimenez
Dixon 1996).
Nepal: The species has been reported
in Nepal in the Central Administrative
Region at two localities: Phulchoki
Mountain Forest and Shivapuri National
Park (Baral et al. 2005; Nepali Times
2002; Shrestha 1997, Gimenez Dixon
1996; Collins and Morris 1985).
Thailand: The species has been
reported in the northern province of
Chang Mai (Pornpitagpan 1999). The
species has limited distribution in the
higher elevation mountains (greater than
1,500 m (4,921 ft)) of northern Thailand
and is found within three national parks
according to the CITES Scientific
Authority of Thailand (2007).
Vietnam: The species has been
confirmed in three Nature Reserves
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(Tordoff et al. 1999; Trai and
Richardson 1999).
Factors Affecting the Species
Habitat destruction is believed to
negatively impact this species, which
prefers undisturbed high-altitude
habitat (Igarashi 2001; Tordoff et al.
1999; Collins and Morris 1985). In
China and India, the Kaiser-I-Hind
swallowtail populations are at risk from
habitat modification and destruction
due to commercial and illegal logging
(Barua et al. 2010; Maheshwari 2003;
Yen and Yang 2001). In Nepal, the
species is at risk from habitat
disturbance and destruction resulting
from mining, wood collection for use as
fuel, agriculture, and grazing animals
(Baral et al. 2005; Shrestha 1997; Collins
and Morris 1985). In Nepal, the Forest
Ministry considered habitat destruction
to be a critical threat to all biodiversity,
including the Kaiser-I-Hind swallowtail,
in the development of its biodiversity
strategy (HMGN 2002). In Thailand,
habitat degradation and loss caused by
deforestation and land conversion for
agricultural purposes is considered to be
a primary factor affecting this species
(FAO 2001; Hongthong 1998).
The Kaiser-I-Hind swallowtail is
highly valued and has been collected for
commercial trade, despite range country
regulations prohibiting or restricting
such activities, in part because it is very
difficult to enforce protections for
species such as butterflies that are easy
to collect and smuggle (TRAFFIC 2007;
¨
Schutz 2000; Collins and Morris 1985).
Between 1990 and 1997, illegally
collected specimens were selling for 500
Rupees (12 USD) per female and 30
Rupees in India (0.73 USD) per male
(Bahuguna 1998), and illegal species
purportedly derived from Sichuan were
being advertised for sale on the internet
for 60 U.S. Dollars (US$), despite
restrictions in China.
In a recent survey conducted by
TRAFFIC Southeast Asia (2007), of
2,000 residents in Ha Noi, Vietnam, the
Kaiser-I-Hind swallowtail was among 37
Schedule IIB-species that were actively
being collected (p. 36). The majority of
the survey respondents were unaware of
legislation prohibiting collection of
Schedule IIB-species (p. 7). This is a
highly desirable species, and there is a
culture within Vietnam of consuming
rare and expensive wild animal dishes,
particularly in Ha Noi among the elite
(TRAFFIC 2007, p. 9). This practice
does not seem to be decreasing; rather
it appears to be increasing. Although
Vietnam has implemented several
action plans to strengthen control of
trade in wild fauna and flora (TRAFFIC
2007, p. 9), within-country protections
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24627
are likely inadequate to protect this
species from illegal collection
throughout its range.
According to the Thai Scientific
Authority, there are no captive breeding
programs for this species; however, the
species is offered for sale by the
Lepidoptera Breeders Association
(2009). It was marketed as derived from
a captive breeding program in Thailand,
although in 2009, specimens were noted
as being ‘‘out of stock’’ (Lepidoptera
Breeders Association 2009).
Between 1991 and 2012, CITES
records indicate that 163 specimens
were traded internationally under valid
CITES permits (UNEP–WCMC CITES
trade database 2012). Reports that the
Kaiser-I-Hind swallowtail is being
captive-bred in Taiwan (Yen and Yang
2001) remain unconfirmed. Since 1993,
there have been no reported seizures
under the Lacey Act or smuggling of this
species into or out of the United States
(Office of Law Enforcement, U.S. Fish
and Wildlife Service, Arlington,
Virginia in litt. 2008). Therefore, on the
basis of global trade data, although
illegal trade remains a concern, we do
not consider legal international trade to
be a significant factor affecting this
species.
Conservation Status
Since 1996, the Kaiser-I-Hind
swallowtail has been categorized on the
IUCN Red List as ‘‘Lower Risk/near
threatened’’ (IUCN 2012; Gimenez
Dixon 1996). The Kaiser-I-Hind
swallowtail has been listed in CITES
Appendix II since 1987 (CITES 2012).
In China, the species is protected by
the Animals and Plants (Protection of
Endangered Species) Ordinance (1989),
which restricts import, export, and
possession of the species. On China’s
2005 Species Red List, it was described
as ‘‘Vulnerable’’ (China Red List 2006).
In India, the Kaiser-I-Hind
swallowtail is listed on Schedule II of
the Indian Wildlife Protection Act of
1972, which prohibits hunting without
a license (Indian Wildlife Protection Act
2006; Collins and Morris 1985).
In Nepal, the Kaiser-I-Hind
swallowtail is protected by the National
Parks and Wildlife Conservation Act of
1973 (His Majesty’s Government of
Nepal (HMGN) 2002). However, the
Forestry Ministry of Nepal determined
in 2002 that the high commercial value
of its ‘‘Endangered’’ species on the local
and international market may result in
local extinctions of species such as the
Kaiser-I-Hind (HMGN 2002).
In Thailand, the Kaiser-I-Hind
swallowtail and 13 other invertebrates
are listed under Thailand’s Wild Animal
Reservation and Protection Act
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(WARPA) of 1992 (B.E. 2535 1992),
which makes it illegal to collect wildlife
(whether alive or dead) or to have the
species in one’s possession
(Choldumrongkul in litt. 2007; FAO
2001; Pornpitagpan 1999; Hongthong
1998). In addition to prohibiting
possession, WARPA prohibits hunting,
breeding, and trading. Import and
export are allowed only for conservation
purposes (Jaisielthum in litt. 2007).
In Vietnam, the species is listed as
‘‘Vulnerable’’ in the 2007 Vietnam Red
Data Book, due to declining population
sizes and area of occupancy (Canh in
litt. 2007). In Vietnam, this species of
swallowtail is reported to be among the
most valuable of all butterflies (World
Bank 2005). In 2006, the species was
listed on Vietnam’s Schedule IIB of
Decree No. 32 on ‘‘Management of
endangered, precious, and rare forest
plants and animals.’’ A Schedule IIBlisting restricts the exploitation or
commercial use of species with small
populations or that are considered by
the country to be in danger of extinction
(Canh in litt. 2007). The species is
provided some protection from habitat
destruction in Vietnam, where it has
been confirmed in three nature reserves
that have low levels of disturbance
(Tordoff et al. 1999; Trai and
Richardson 1999).
After reevaluating the threats to this
species, we have determined that no
change in its LPN is warranted. The
Kaiser-I-Hind swallowtail does not
represent a monotypic genus. The
current factors, habitat destruction and
illegal collection, are moderate in
magnitude due to the species’ wide
distribution and to various protections
in place within each country. We find
that the threats are imminent due to
ongoing habitat destruction and high
market value for specimens. Based on
our reassessment of the threats, we have
retained an LPN of 8 to reflect imminent
threats of moderate magnitude.
Molluscs
tkelley on DSK3SPTVN1PROD with PROPOSALS5
Colorado Delta Clam (Mulinia
coloradoensis), LPN = 2
Taxonomy
The Colorado Delta clam is a member
of the family Mactridae (Phylum
Mollusca). This species is restricted to
the Gulf of California and west Mexican
area (Keen 1971, p. 207). The treatment
of Mulinia coloradoensis as a distinct
species is widely accepted among
experts of molluscan studies (ArizonaSonora Desert Museum 2011, p. 1;
Smithsonian Institution 2011, p. 1;
Gemmell et al. 1987, p. 45; Bernard
1983, p. 40). The taxonomy of M.
coloradoensis has been validated as a
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unique species through morphometric
analysis (Flessa and Tellez-Duarte 2001,
p. 5). Accordingly, we conclude that M.
coloradoensis is a valid species.
Species Description
The Colorado Delta clam was
described by Dall (1894, p. 6) as having
a ‘‘larger’’ shell, solid, rude (relatively
undeveloped or primitive), equilateral,
resembling M. modesta, but having a
more arched posterior dorsal margin,
the base behind the posterior dorsal
angle. It was also described as being
somewhat concavely flexuous, with
slightly elevated ridges that radiate. The
length of a medium-sized specimen is
49 millimeters (mm) (0.2 in), and its
height 36.5 mm (0.14 in), and the width
is 32 mm (0.13 in). Rodriguez et al.
(2001a, p. 253) report the species can
reach lengths of almost 60 mm (0.24 in).
Little is known about the life history
of the Colorado Delta clam. The species
is known to take 3 years to grow to an
average adult size of 30 mm (0.12 in)
(Kowalewski et al. 2000, p. 1060;
Kowalewski et al. 1994, p. 231), and it
likely does not live much longer. The
lifespan of this species is likely about 3
years, which is average for this genus.
Other species of Mulinia are known to
live up to 2 years (Lu et al. 1996, p.
3482). The family Mactridae is
commonly found in sandy or muddy
substrates associated with brackish
water (Leal 2002, p. 59–61). This species
is an infaunal (aquatic animal that lives
in the substrate of a body of water,
usually in a soft sea bottom),
suspension-feeding estuarine bivalve
(Rodriguez et al. 2001a, p. 252). The
species is found in low intertidal mud
at depths of about 7 cm (2.75 in)
beneath sediment (Rodriguez et al.
2001a, p. 253).
No specific information has been
collected regarding the reproductive
biology of the Colorado Delta clam,
although Rodriguez et al. (2001a, p. 255)
speculate the species may spawn in
response to episodes of fresh water
inflow. Reproduction in bivalves is
mostly through external fecundation
(sperm and egg cells unite external to
the bodies of reproducing individuals)
(Leal 2002, p. 26). A species within the
same genus, M. lateralis, is known to
spawn from May to November (Puglisi
and Thiebaud 2008, p. 2; Lu et al. 1996,
p. 3,482). A female M. lateralis will
release between 0.5 to 2 million eggs
during a spawning event (Lu et al. 1996,
p. 3482), indicating the Colorado Delta
clam could potentially exhibit high
fecundity in the proper conditions.
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Historical Range
The Colorado Delta clam was once an
abundant species in the head of the Gulf
of California in the estuary of the
Colorado River (Martinez 2012; Dall
1894, p. 6). This species is present in
cheniers (piles of dead shells) as far as
75 km (47 mi) from the mouth of the
Colorado River Delta (Rodriguez et al.
2001b, pp. 185–186). This finding
indicates the species historically had a
broad distribution (Martinez 2012; Alles
2006, p. 2; Arias et al. 2004, p. 11;
Zamora-Arroyo et al. 2005, p. 2; Cohen
et al. 2001, p. 35; Luecke et al. 1999, p.
1).
Current Range
This species is now known to exist as
a relict population at Isla Montague,
Mexico, at the mouth of the Colorado
River Delta (Martinez 2012; CintraBuenrostro et al. 2005, p. 296; Flessa
and Tellez-Duarte 2001, p. 9; Rodriguez
et al. 2001a, p. 251; Flessa and
Rodriguez 1999, p. 8). Although Keen
(1971, p. 207) indicated the species also
occurs in ‘‘west Mexican area,’’ there are
no reliable records of the species from
that area and the available evidence
indicates the species’ distribution is
restricted to the Delta (Flessa and
Tellez-Duarte 2001, p. 9; Flessa and
Rodriguez 1999, p. 5).
The relative abundance of Colorado
Delta clam is associated with salinity,
which is common with Mulinia clams
(Flessa and Rodriguez 1999, p. 8).
Abundance of dead shells of Colorado
Delta clam decreases with increasing
distance from the mouth of the Colorado
River, suggesting the species
distribution is influenced by freshwater
inflow (Rodriguez et al. 2001b, p. 188).
Population Estimate
We are unaware of precise estimates
of the population size for Colorado Delta
clam. However, the species is believed
to now comprise less than one percent
of the living fauna in the Delta (AvilaSerrano et al. 2006, p. 656; Flessa and
Tellez-Duarte 2001, p. 2; Rodriguez et
al. 2001b, p. 186; Kowalewski et al.
2000, p. 1060; Kowalewski et al. 1994,
p. 219). Prior to 1998, the species was
described as the most abundant mollusk
that lived in the Colorado River Delta
area (Rodriguez et al. 1998, p. 1). The
best available information suggests that
the species has experienced a 90 percent
reduction from historical population
size caused by the decrease in
freshwater flow to the estuary (Martinez
2012; Avila-Seranno et al. 2006, pp.
650, 658; Cintra-Buenrostro 2005, p.
300).
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Factors Affecting the Species
Virtually the entire flow of the
Colorado River has been captured and
consumed by municipal, industrial, and
agricultural users before entering
Mexico (Alles 2006, p. 2, 6; Cohen 2005,
p. 2; Morrison et al. 1996, p. xii;
Rodriguez et al. 2001b, p. 183). The
Delta is now believed to support only
about 60,000 ha (150,000 ac) of wetland
habitats and riparian communities,
having been reduced by over 90 percent
over the past 80 years (Cohen 2005, p.
2; Arias et al. 2004, p. 11; Cohen et al.
2001, p. 35; Glenn et al. 1996, p. 1175).
The reduction in the extent of the
estuary ecosystem in the Colorado Delta
mirrors the decline of the Colorado
Delta clam (Martinez 2012). Through
examination of dead shells, which
accumulate in cheniers, the Colorado
Delta clam once dominated the bivalve
community of the Delta with a massive
population extending 75 km (47 mi) into
the Gulf of California (Rodriguez et al.
2001a, p. 254; Kowalewski et al. 2000,
pp. 1059–1060).
The relict population at Isla Montague
continues to survive, apparently on
scarce and intermittent freshwater
inflow (Martinez 2012). The ecological
conditions within the Delta, upon
which the Colorado Delta clam depends,
have undergone significant changes due
to the reduction of freshwater inflow.
Rodriguez et al. (2001a, p. 257)
demonstrated that the decrease of
freshwater, nutrients, and sediments
from Colorado River inflow is largely
responsible for the decline in the
abundance and distribution of the
Colorado Delta clam. Zamora-Arroyo et
al. (2005, p. 3) determined that lack of
dedicated freshwater input is the
principle threat to the Delta and Upper
Gulf of California.
Since completion of upstream dams,
primarily Glen Canyon Dam in 1963,
very little fresh water reaches the Gulf
of California in most years (AvilaSerrano et al. 2006, p. 649; Baron et al.
2002, p. 1251; Postel et al. 1998, p. 120;
Glenn et al. 1992, p. 818). Construction
of upstream dams and diversions since
the 1930s has transformed the upper
Gulf of California to an inverse estuary
with salinity increasing toward the
mouth of the river (Rodriguez et al.
2001b, p. 183; Lavin et al. 1998, p. 769).
Salinity at the mouth of the Colorado
River has increased from 22–33
practical salinity units (psu) before the
construction of the Hoover Dam in 1923
to 38 psu today (Cintra-Buenrostro et al.
2011). There are long periods when no
fresh water reaches the Gulf, which
creates highly saline conditions and
increasing water temperatures (Varady
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et al. 2001, p. 205), and the estuary of
the Delta is becoming increasingly
saline due to lack of freshwater inflow
(Alles 2006, p. 2). Dams also trap most
sediment before it reaches the Gulf
(Alles 2006, p. 8). These conditions are
not conducive to the survival of this
clam species.
Intermittent and unplanned flood
releases from upstream dams between
1980 and 2000 resulted in water flowing
to the Delta in 10 of those 20 years
(Varady et al. 2001, p. 203), causing
reestablishment of riparian habitat
(Rowell et al. 2006, pp. 47–48; Luecke
et al. 1999, p. 7). These releases are
likely critical to the maintenance of the
aquatic community in the estuary and
the continued survival of the species at
Isla Montague.
In addition to intermittent flood
releases from major dams along the
Colorado River, the Delta appears to also
be sustained by groundwater seepage
and agricultural return water (Rowell et
al. 2006, p. 48; Arias et al. 2004, p. 12).
The only water that now reaches the
Delta on a regular basis is agricultural
return flows, largely from the Mexicali
Valley via the Rio Hardy (Alles 2006, p.
2; Cohen 2005, p. 1; Cohen et al. 2001,
p. 44). There is usually no surface
connection from the Cienega de Santa
Clara, a large wetland in the upper Delta
(Glenn et al. 1992, p. 822). Agricultural
return flow from the Mexicali Valley,
coupled with aquifer inflow, is a
freshwater source that ensures the
continued survival of the clam.
The contribution of agricultural return
flow is due to the recent lining of the
All-American Canal, which was
completed in 2009. Prior to lining, the
All-American Canal was a source of
recharge to the Mexicali Valley aquifer
(Calleros 1991, p. 837). Sixty percent of
the annual recharge to the subterranean
aquifer of the Mexicali Valley is due to
subterranean flows (Calleros 1991, p.
829), largely from the All-American
Canal. Further reductions in freshwater
inflow to the Delta may occur in the
near future (Martinez 2012).
Drought
At a regional scale, there is broad
consensus among climate models that
the southwestern United States and
northern Mexico will become drier in
the twenty-first century, and that the
trend is already under way (Martinez
2012; Seager et al. 2007, pp. 1181–1184)
with increasing aridity in the Southwest
occurring as early as 2021–2040.
Wetlands in the southwestern United
States and northern Mexico are
predicted to be particularly at risk of
drying (Seager et al. 2007, pp. 1183–
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1184), which has severe implications for
aquatic ecosystems.
Numerous models also predict a
decrease in annual precipitation in the
southwestern United States and
northern Mexico (Solomon et al. 2009,
p. 1707; Christensen et al. 2007, p. 888).
Solomon et al. 2009 predicts
precipitation in the southwestern
United States and northern Mexico will
decrease by as much as 9 to 12 percent.
Christensen et al. (2007, p. 888) contend
the projection of smaller warming over
the Pacific Ocean than over the
continent is likely to induce a decrease
in annual precipitation in the
southwestern United States and
northern Mexico. This decrease would
modify freshwater and sediments vital
to the survival of the Colorado Delta
clam.
Warmer water temperatures across
temperate regions are also predicted to
expand the distribution of existing
aquatic nonnative species, which could
affect this species (Martinez 2012;
Mohseni et al. 2003, p. 389). There
could be 31 percent more suitable
habitat for aquatic nonnative species,
which are often tropical in origin and
better adapted to warmer water
temperatures. This change in
temperatures could result in an
expansion in the range of nonnative
aquatic species to the detriment of
native species like the Colorado Delta
clam.
The Colorado Delta clam is currently
threatened by the ongoing and
continuing reduction in freshwater
input into the Gulf of California, and the
inadequacy of regulatory mechanisms to
ensure freshwater input (Martinez
2012). Freshwater is critical to the
species’ survival because the species’
life history is tied to the inflow of
freshwater to ensure the maintenance of
its brackish water habitat. The Delta
continues to experience a reduction in
freshwater inflow, which is critical to
the survival of the species because it
depends on the availability of brackish
water. Furthermore, the available
information indicates that loss of
freshwater will likely worsen in the near
and long-term future.
Conservation Status
This species exists in Mexico’s
Biosphere Reserve of the upper gulf of
California and the Colorado River Delta,
which consists of 930,777 hectares (2.3
million acres). Monitoring of this
species is being conducted in
connection with the Colorado River
Delta-Sonoran Joint Venture between
Mexico and the United States (Zamora
et al. 2007, 2002). A workshop was held
in 2002 to determine conservation
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priorities in the Colorado River Delta
(Zamora-Arroyo et al. 2005, p. 3). As of
2002, NGOs in Mexico were working
with the Government of Mexico’s
Ministry of Environment and Natural
´
Resources (Secretarıa de Medio
Ambiente y Recursos Naturales, or
SEMARNAT) to develop ways to protect
Mexico’s Colorado River riparian
corridor (Zamora-Arroyo et al. 2005, p.
4). SEMARNAT’s purpose is to promote
the protection, restoration, and
conservation of ecosystems and natural
resources. In 2007, SEMARNAT
published a report on the goals and
priorities of the Conservation and
Management Program for the Reserve
(SEMARNAT 2007, 323 pp.). It is not
listed on any of the appendices of
CITES.
After reviewing the factors affecting
this species, we found that the species
has experienced an approximate 90
percent reduction from historical
population size caused by the decrease
in freshwater flow to the estuary. The
available evidence indicates that
Colorado delta clam is now restricted to
one relict population at Isla Montague at
the mouth of the Colorado River delta.
Since habitat containing the entire range
of the species may be rendered
unsuitable within the future, we find
that threats are of high magnitude.
Accordingly, we find the Colorado delta
clam is subject to high-magnitude
imminent threats, and we assign a LPN
of 2 for this species.
Preclusion and Expeditious Progress
A listing proposal is precluded if the
Service does not have sufficient
resources available to complete the
proposal, because there are competing
demands for those resources, and the
relative priority of those competing
demands is higher. Thus, in any given
fiscal year (FY), multiple factors dictate
whether it will be possible to undertake
work on a listing proposal regulation or
whether promulgation of such a
proposal is precluded by higher priority
listing actions—(1) the amount of
resources available for completing the
listing function; (2) the estimated cost of
completing the proposed listing, and (3)
the Service’s workload and
prioritization of the proposed listing in
relation to other actions.
In 2009, the responsibility for listing
foreign species under the Act was
transferred from the Service’s Division
of Scientific Authority, International
Affairs Program, to the Endangered
Species Program. The Branch of Foreign
Species (BFS) was established in June
2010 to specifically work on petitions
and other actions under Section 4 of the
Act for foreign species.
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Section 4(b) of the Act states that the
Service may make warranted-butprecluded findings only if it can
demonstrate that (1) An immediate
proposed rule is precluded by other
pending proposals and that (2)
expeditious progress is being made on
other listing actions. Preclusion is a
function of the listing priority of a
species in relation to the resources that
are available and competing demands
for those resources. Thus, in any given
fiscal year (FY), multiple factors dictate
whether it will be possible to undertake
work on a proposed listing regulation or
whether promulgation of such a
proposal is warranted-but-precluded by
higher priority listing actions.
The resources available for listing
actions are determined through the
annual Congressional appropriations
process. The appropriation for the
Listing Program is available to support
work involving the following listing
actions: Proposed and final listing rules;
90-day and 12-month findings on
petitions to add species to the Lists of
Endangered and Threatened Wildlife
and Plants (Lists) or to change the status
of a species from threatened to
endangered; annual determinations on
prior ‘‘warranted-but-precluded’’
petition findings as required under
section 4(b)(3)(C)(i) of the Act; critical
habitat petition findings; proposed and
final rules designating critical habitat;
and litigation-related, administrative,
and program-management functions
(including preparing and allocating
budgets, responding to Congressional
and public inquiries, and conducting
public outreach regarding listing and
critical habitat).
The work involved in preparing
various listing documents can be
extensive and may include, but is not
limited to: gathering and assessing the
best scientific and commercial data
available and conducting analyses used
as the basis for our decisions; writing
and publishing documents; and
obtaining, reviewing, and evaluating
public comments and peer review
comments on proposed rules and
incorporating relevant information into
final rules. The number of listing
actions that we can undertake in a given
year also is influenced by the
complexity of those listing actions; that
is, more complex actions generally are
more costly.
We cannot spend more than is
appropriated for the Listing Program
without violating the Anti-Deficiency
Act (see 31 U.S.C. 1341(a)(1)(A)). In
addition, in FY 1998 and for each fiscal
year since then, Congress has placed a
statutory cap on funds which may be
expended for the Listing Program, equal
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to the amount expressly appropriated
for that purpose in that fiscal year. This
cap was designed to prevent funds
appropriated for other functions under
the Act (for example, recovery funds for
removing species from the Lists), or for
other Service programs, from being used
for Listing Program actions (see House
Report 105–163, 105th Congress, 1st
Session, July 1, 1997).
Effective in FY 2012, the Service’s
Listing Program budget has included a
foreign species subcap to ensure that
some funds are available for other work
in the Listing Program. Prior to FY 2012,
there was no distinction between listing
domestic and foreign species. To
reasonably balance the foreign species
listing commitment with other listing
program responsibility, Congress further
refined the appropriations of the Service
to add ‘‘and, of which not to exceed
$1,500,000 shall be used for
implementing subsections (a), (b), (c),
and (e) of section 4 of the Endangered
Species Act, as amended, for species
that are not indigenous to the United
States * * *’’ (See Conference Report
112–331, 112th Congress, 1st session,
December 15, 2011).
Thus, through the listing program cap
and the foreign species subcap,
Congress has determined the amount of
money available for foreign species
listing activities, including petition
findings and listing determinations.
Therefore, the funds in the foreign
species subcap set the limits on our
determinations of preclusion and
expeditious progress.
In FY 2012, expeditious progress is
that amount of work that can be
achieved with $1,500,000, which is the
amount of money that Congress
appropriated for the foreign species
subcap within the Listing Program
budget (Conference Report 112–331).
Funding in the amount of $1,500,000 is
being used for work in the following
categories: compliance with court orders
and court-approved settlement
agreements requiring that petition
findings or listing determinations be
completed by a specific date; section 4
(of the Act) listing actions with absolute
statutory deadlines; essential litigationrelated, administrative, and listing
program-management functions; and
high-priority listing actions for some of
our candidate species. In addition,
available staff resources are also a factor
in determining which high-priority
species are provided with funding.
Our expeditious progress also
includes work on petition findings and
listing actions that we funded in FY
2010 and FY 2011 but have not yet been
completed to date. These actions are
listed below. Actions in the top section
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of the table are being conducted under
a deadline set by a court. Actions in the
bottom section of the table are being
conducted to meet statutory timelines,
that is, timelines required under the
Act.
BFS may, based on available staff
resources, work on species described
within this ANOR with an LPN of 2 or
3, and when appropriate, species with a
lower priority if they overlap
geographically or have the same threats
as the species with the high priority.
Because the actions below are either the
subject of a court-approved settlement
agreement or subject to an absolute
statutory deadline and, thus, are higher
priority than work on proposed listing
determinations for the 20 species
described above, publication of
proposed rules for these 20 species is
precluded.
TABLE 3—ESA FOREIGN SPECIES LISTING ACTIONS FUNDED IN PREVIOUS FISCAL YEARS AND FY 2013 BUT NOT YET
COMPLETED
Species
Action
Actions Subject to Court Order/Settlement Agreement
All have been completed (See Table 4 below for these specific actions)
Actions with Statutory Deadlines
11 tarantula species .................................................................................
15 bat species ..........................................................................................
Caribou, Peary and Dolphin and Union ...................................................
Chimpanzee ..............................................................................................
Caiman, broad-snouted ............................................................................
Ridgway’s Hawk eagle .............................................................................
Virgin Islands coqui ..................................................................................
Flores hawk-eagle ....................................................................................
Emperor penguin ......................................................................................
10 sturgeon species .................................................................................
Despite the priorities that preclude
publishing proposed listing rules for
these 20 species described in this
notice, we are making expeditious
progress in adding to and removing
90-day petition finding.
90-day petition finding.
12-month petition finding.
12-month petition finding.
Final downlisting determination.
90-day petition finding.
90-day petition finding.
90-day petition finding.
90-day petition finding.
90-day petition finding.
species from the Federal lists of
threatened and endangered species. Our
expeditious progress for foreign species
since publication of our previous
Annual Notice of Review, published on
May 3, 2011 (76 FR 25150), to April 25,
2013, includes preparing and publishing
the following:
TABLE 4—ESA FOREIGN SPECIES LISTING ACTIONS PUBLISHED SINCE THE PREVIOUS ANOR WAS PUBLISHED ON MAY 3,
2011
Species
Action
05/26/2011 ...........................................
06/02/2011 ...........................................
Salmon-crested cockatoo ....................
Straight-horned markhor .....................
08/09/2011
08/09/2011
08/09/2011
08/09/2011
...........................................
...........................................
...........................................
...........................................
Crimson shining parrot ........................
Philippine cockatoo .............................
Yellow-crested cockatoo .....................
White cockatoo ....................................
08/11/2011 ...........................................
Six Eurasian birds ...............................
09/01/2011 ...........................................
Chimpanzee ........................................
10/11/2011 ...........................................
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Publication date
Yellow-billed parrot ..............................
10/12/2011
01/05/2012
05/03/2012
05/23/2012
07/06/2012
07/06/2012
07/06/2012
07/24/2012
08/07/2012
...........................................
...........................................
...........................................
...........................................
...........................................
...........................................
...........................................
...........................................
...........................................
Two South American parrot species ...
Broad-snouted caiman ........................
Wood bison .........................................
Morelet’s crocodile ..............................
Military and great green macaw ..........
Hyacinth macaw ..................................
Scarlet macaw .....................................
Six Peruvian and Bolivian bird species
Markhor, straight-horned .....................
09/19/2012 ...........................................
Scimitar-horned ...................................
oryx, dama gazelle, and addax ...........
Lion, African ........................................
Hummingbird, Honduran emerald .......
Macaw, blue-throated ..........................
Final rule; threatened with special rule
90-day finding; initiation of status review.
Status review; not warranted ..............
Proposed rule; endangered .................
Proposed rule; endangered .................
Proposed rule; threatened with special
rule.
Final rule; endangered throughout
their range.
Petition finding; initiation of status review.
Proposed rule; threatened with special
rule.
Status review; not warranted ..............
Proposed rule; downlisting ..................
Final rule; downlisting ..........................
Final rule; delisting ..............................
Proposed rule; endangered .................
Proposed rule; endangered .................
Proposed rule; endangered .................
Final rule; endangered ........................
Proposed rule; downlisting with special rule.
90-day petition finding .........................
11/27/2012 ...........................................
01/02/2013 ...........................................
01/10/2013 ...........................................
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90-day petition finding .........................
Proposed listing determination ............
Proposed listing determination ............
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As explained above, a determination
that listing is warranted-but-precluded
must also demonstrate that expeditious
progress is being made to add or remove
qualified species to and from the Lists
of Endangered and Threatened Wildlife
and Plants. As with our ‘‘precluded’’
finding, expeditious progress in adding
qualified species to the Lists is a
function of the resources available and
the competing demands for those funds.
Given that limitation, we find that we
are making progress in FY 2012 in the
foreign species branch of the Listing
Program.
We have endeavored to make our
listing actions as efficient and timely as
possible, given the requirements of the
relevant law and regulations, and
constraints relating to workload and
personnel. We are continually
considering ways to streamline
processes or achieve economies of scale,
such as by batching related actions
together. Given our limited budget for
implementing section 4 of the Act, these
actions described above collectively
constitute expeditious progress.
Our expeditious progress also
includes work on pending listing
actions described above in our
‘‘precluded finding,’’ but for which
decisions had not been completed at the
time of this publication.
Monitoring
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Section 4(b)(3)(C)(iii) of the Act
requires us to ‘‘implement a system to
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monitor effectively the status of all
species’’ for which we have made a
warranted-but-precluded 12-month
finding, and to ‘‘make prompt use of the
[emergency listing] authority [under
section 4(b)(7)] to prevent a significant
risk to the well being of any such
species.’’ For foreign species, the
Service’s ability to gather information to
monitor species is limited. The Service
welcomes all information relevant to the
status of these species, because we have
no ability to gather data in foreign
countries directly and cannot compel
another country to provide information.
Thus, this ANOR plays a critical role in
our monitoring efforts for foreign
species.
With each ANOR, we request
information on the status of the species
included in the notice. Information and
comments on the annual findings can be
submitted at any time. We review all
new information received through this
process as well as any other new
information we obtain using a variety of
methods. We collect information
directly from range countries by
correspondence, from peer-reviewed
scientific literature, unpublished
literature, scientific meeting
proceedings, and CITES documents
(including species proposals and reports
from scientific committees). We also
obtain information through the permit
application processes under CITES, the
Act, and the Wild Bird Conservation Act
(16 U.S.C. 4901 et seq.). We also consult
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with the IUCN species specialist groups
and staff members of the U.S. CITES
Scientific and Management Authorities,
and the Division of International
Conservation; and we attend scientific
meetings, when possible, to obtain
current status information for relevant
species. As previously stated, if we
identify any species for which
emergency listing is appropriate, we
will make prompt use of the emergency
listing authority under section 4(b)(7) of
the Act.
References Cited
A list of the references used to
develop this notice is available at https://
www.regulations.gov at Docket No.
FWS–R9–ES–2012–0044.
Authors
This Notice of Review was primarily
authored by Amy Brisendine and staff of
the Branch of Foreign Species,
Endangered Species Program, U.S. Fish
and Wildlife Service.
Authority
This Notice of Review is published
under the authority of the Endangered
Species Act of 1973, as amended (16
U.S.C. 1531 et seq.).
Dated: April 8, 2013.
Rowan W. Gould,
Director, Fish and Wildlife Service.
[FR Doc. 2013–09504 Filed 4–24–13; 8:45 am]
BILLING CODE 4310–55–P
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[Federal Register Volume 78, Number 80 (Thursday, April 25, 2013)]
[Proposed Rules]
[Pages 24603-24632]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-09504]
[[Page 24603]]
Vol. 78
Thursday,
No. 80
April 25, 2013
Part V
Department of the Interior
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Fish and Wildlife Service
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50 CFR Part 17
Endangered and Threatened Wildlife and Plants; Annual Notice of
Findings on Resubmitted Petitions for Foreign Species; Annual
Description of Progress on Listing Actions; Proposed Rule
Federal Register / Vol. 78 , No. 80 / Thursday, April 25, 2013 /
Proposed Rules
[[Page 24604]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R9-ES-2012-0044; 450 003 0115]
Endangered and Threatened Wildlife and Plants; Annual Notice of
Findings on Resubmitted Petitions for Foreign Species; Annual
Description of Progress on Listing Actions
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Notice of review.
-----------------------------------------------------------------------
SUMMARY: In this Annual Notice of Review (ANOR) of foreign species, we
present an updated list of plant and animal species foreign to the
United States that we regard as candidates for addition to the Lists of
Endangered and Threatened Wildlife and Plants under the Endangered
Species Act of 1973, as amended. This review ensures that we focus
conservation efforts on those species at greatest risk first. Overall,
this ANOR recognizes one new candidate and removes one species from
candidate status. The current number of foreign species that are
candidates for listing is 20. Based on our current review, we find that
20 species continue to warrant listing, but their listing remains
precluded by higher priority proposals to determine whether any species
is an endangered species or a threatened species.
DATES: We will accept information on these resubmitted petition
findings at any time.
ADDRESSES: This notice is available on the Internet at https://www.regulations.gov. Please submit any new information, materials,
comments, or questions of a general nature on this notice to the
Arlington, VA, address listed in the FOR FURTHER INFORMATION CONTACT
section below.
FOR FURTHER INFORMATION CONTACT: Chief, Branch of Foreign Species,
Endangered Species Program, U.S. Fish and Wildlife Service, 4401 North
Fairfax Drive, Room 420, Arlington, VA 22203; telephone 703-358-2171.
If you use a telecommunications device for the deaf (TDD), call the
Federal Information Relay Service (FIRS) at 800-877-8339.
SUPPLEMENTARY INFORMATION:
Executive Summary
In this Annual Notice of Review (ANOR) of foreign species, we
present an updated list of plant and animal species foreign to the
United States that we regard as candidates for addition to the Lists of
Endangered and Threatened Wildlife and Plants under the Endangered
Species Act of 1973, as amended. When, in response to a petition, we
find that listing a species is warranted but precluded by higher
priority proposals to determine whether any species is an endangered
species or a threatened species, we must review the status of the
species each year until we publish a proposed rule or make a
determination that listing is not warranted. These subsequent status
reviews and the accompanying 12-month findings are referred to as
``resubmitted'' petition findings.
Since publication of the previous ANOR on May 3, 2011 (76 FR
25150), we reviewed the available information on candidate species to
ensure that listing is warranted for each species and reevaluated the
relative listing priority number (LPN) assigned to each species. We
also evaluated the need to emergency list any of these species,
particularly species with high listing priority numbers (i.e., species
with LPNs of 1, 2, or 3). This review ensures that we focus
conservation efforts on those species at greatest risk first. In
addition to reviewing foreign candidate species since publication of
the last ANOR, we have worked on numerous findings in response to
petitions to list species and on proposed and final determinations for
rules to list, delist, or downlist species under the Act. Some of these
findings and determinations have been completed and published in the
Federal Register, while work on others is still under way (see
Preclusion and Expeditious Progress section, below, for details).
Overall, this ANOR recognizes one new candidate and removes one
species from candidate status. The current number of foreign species
that are candidates for listing is 20. Based on our current review, we
find that 20 species continue to warrant listing, but their listing
remains precluded by higher priority proposals to determine whether any
species is an endangered species or a threatened species.
Request for Information
This ANOR summarizes the status and threats that we evaluated in
order to determine that species qualify as candidates and to assign an
LPN to each species or to determine that species should be removed from
candidate status. This document also describes our progress in revising
the Lists of Endangered and Threatened Wildlife and Plants (Lists)
during the period May 3, 2011, through September 30, 2012.
With this ANOR, we request additional information for the 20 taxa
whose listings are warranted but precluded by higher priority proposals
to determine whether any species is an endangered or threatened
species. We will consider this information in preparing listing
documents and future resubmitted petition findings for these 20 taxa.
This information will also help us to monitor the status of the taxa
and conserve them. We request the submission of any further information
on the species in this notice as soon as possible, or whenever it
becomes available. We especially seek information:
(1) Indicating that we should remove a taxon from consideration for
listing;
(2) Documenting threats to any of the included taxa;
(3) Describing the immediacy or magnitude of threats facing these
taxa;
(4) Identifying taxonomic or nomenclatural changes for any of the
taxa; or
(5) Noting any mistakes, such as errors in the indicated historic
ranges.
You may submit your information concerning this notice in general
or for any of the species included in this notice by one of the methods
listed in the ADDRESSES section.
Background
The Endangered Species Act of 1973, as amended (Act) (16 U.S.C.
1531 et seq.), provides two mechanisms for considering species for
listing. First, we, upon our own initiative, can identify and propose
for listing those species that are endangered or threatened based on
the factors contained in section 4(a)(1) of the Act. We implement this
mechanism through the candidate program. Candidate taxa are those taxa
for which we have sufficient information on file relating to biological
vulnerability and threats to support a proposal to list the taxa as
endangered or threatened, but for which preparation and publication of
a proposed rule is precluded by higher priority proposals to determine
whether any species is an endangered species or a threatened species.
The second mechanism for considering species for listing is when the
public petitions us to add species to the Lists of Endangered and
Threatened Wildlife and Plants (Lists). Nineteen of these species
covered by this notice were assessed through the petition process.
Under section 4(b)(3)(A) of the Act, when we receive a listing
petition we must determine within 90 days, to the maximum extent
practicable, whether the petition presents substantial scientific or
commercial information indicating that the petitioned action may be
warranted (90-day finding). If
[[Page 24605]]
we make a positive 90-day finding, we are required to promptly commence
a review of the status of the species. Using the information from the
status review, in accordance with section 4(b)(3)(B) of the Act, we
must make one of three findings within 12 months of the receipt of the
petition (12-month finding). The first possible 12-month finding is
that listing is not warranted, in which case we need not take any
further action on the petition. The second possibility is that we may
find that listing is warranted, in which case we must promptly publish
a proposed rule to list the species. Once we publish a proposed rule
for a species, sections 4(b)(5) and 4(b)(6) of the Act govern further
procedures, regardless of whether or not we issued the proposal in
response to the petition. The third possibility is that we may find
that listing is warranted but precluded. A warranted-but-precluded
finding on a petition to list means that listing is warranted, but that
the immediate proposal and timely promulgation of a final regulation is
precluded by higher priority listing actions. In making a warranted-
but-precluded finding under the Act, the Service must demonstrate that
expeditious progress is being made to add and remove species from the
Lists (See Preclusion and Expeditious Progress section).
In accordance with section 4(b)(3)(C)(i) of the Act, when, in
response to a petition, we find that listing a species is warranted but
precluded, we must make a new 12-month finding annually until we
publish a proposed rule or make a determination that listing is not
warranted. These subsequent 12-month findings are referred to as
``resubmitted'' petition findings. This notice contains our resubmitted
petition findings for foreign species previously described in the
Notice of Review published May 3, 2011 (76 FR 25150).
We maintain this list of candidates for a variety of reasons: To
notify the public that these species are facing threats to their
survival; to provide advance knowledge of potential listings; to
provide information that may stimulate and guide conservation efforts
that will remove or reduce threats to these species and possibly make
listing unnecessary; to request input from interested parties to help
us identify those candidate species that may not require protection
under the Act or additional species that may require the Act's
protections; and to request necessary information for setting
priorities for preparing listing proposals. We strongly encourage
collaborative conservation efforts for candidate species, and offer
technical and financial assistance to facilitate such efforts. For
additional information regarding such assistance, see FOR FURTHER
INFORMATION CONTACT.
On September 21, 1983, we published guidance for assigning a
listing priority number (LPN) for each candidate species (48 FR 43098).
Using this guidance, we assign each candidate an LPN of 1 to 12,
depending on the magnitude of threats, immediacy of threats, and
taxonomic status; the lower the LPN, the higher the listing priority
(that is, a species with an LPN of 1 would have the highest listing
priority). Guidelines for such a priority-ranking guidance system are
required under section 4(h)(3) of the Act (15 U.S.C. 1533(h)(3)). As
explained below, in using this system we first categorize based on the
magnitude of the threat(s), then by the immediacy of the threat(s), and
finally by taxonomic status.
Under this priority-ranking system, magnitude of threat can be
either ``high'' or ``moderate to low.'' This criterion helps ensure
that the species facing the greatest threats to their continued
existence receive the highest listing priority. It is important to
recognize that all candidate species face threats to their continued
existence, so the magnitude of threats is in relative terms. When
evaluating the magnitude of the threat(s) facing the species, we
consider information such as: the number of populations and/or extent
of range of the species affected by the threat(s); the biological
significance of the affected population(s), the life-history
characteristics of the species and its current abundance and
distribution; and whether the threats affect the species in only a
portion of its range.
As used in our priority ranking system, immediacy of threat is
categorized as either ``imminent'' or ``nonimminent.'' It is not a
measure of how quickly the species is likely to become extinct if the
threats are not addressed; rather, immediacy is based on when the
threats will begin. If a threat is currently occurring or likely to
occur in the very near future, we classify the threat as imminent.
Determining the immediacy of threats helps ensure that species facing
actual, identifiable threats are given priority for listing proposals
over those for which threats are only potential or species that are
intrinsically vulnerable to certain types of threats, but are not known
to be presently facing such threats.
Our priority-ranking system has three categories for taxonomic
status: species that are the sole members of a genus; full species (in
genera that have more than one species); and subspecies and distinct
population segments of vertebrate species (DPS). In summary, the LPN
ranking system provides a basis for making decisions about the relative
priority for preparing a proposed rule to list a given species. Each
species included in this notice is one for which we have sufficient
information to prepare a proposed rule to list, because it is in danger
of extinction or likely to become endangered within the foreseeable
future throughout all or a significant portion of its range.
For more information on the process and standards used in assigning
LPNs, a copy of the guidance is available on our Web site at: https://www.fws.gov/endangered/esa-library/pdf/48fr43098-43105.pdf. For more
information on the LPN assigned to a particular species, the species
assessment for each candidate contains the LPN and a rationale for the
determination of the magnitude and imminence of threat(s) and
assignment of the LPN; that information is presented in this ANOR.
Previous Notices
This revised notice supersedes all previous annual notices of
review for foreign species. The species discussed in this notice are in
part the result of three separate petitions submitted to the U.S. Fish
and Wildlife Service (Service) to list a number of foreign bird and
butterfly species as endangered or threatened under the Act. We
received petitions to list foreign bird species on November 24, 1980,
and May 6, 1991 (46 FR 26464, May 12, 1981; and 56 FR 65207, December
16, 1991, respectively). On January 10, 1994, we received a petition to
list seven butterfly species as endangered or threatened (59 FR 24117;
May 10, 1994).
We took several actions on these petitions. Our most recent review
of petition findings was published on May 3, 2011 (76 FR 25150). Since
our last review of petition findings in May 2011, we have issued a
proposed rule to list one species previously included in the ANOR (see
the Preclusion and Expeditious Progress section for additional listing
actions that were not related to this notice). On January 10, 2013, we
published a proposed rule to list the blue throated macaw under the Act
(78 FR 2239).
Findings on Resubmitted Petitions
This notice describes our resubmitted petition findings for 19
foreign species for which we had previously found listing to be
warranted but precluded. We have considered all of the new information
that we have obtained since the previous finding, and we have reviewed
in accordance with our Listing
[[Page 24606]]
Priority Guidance the LPN of each taxon for which proposed listing
continues to be warranted but precluded. Based on our review of the
best available scientific and commercial information, with this ANOR,
we have changed the LPN for two candidate species.
New Candidate Species
Below we present a summary of one new species Colorado delta clam
(Mulinia coloradoensis), which is an addition to this year's ANOR.
Based upon our own initiative, we find that we have sufficient
information on its biological vulnerability and threats to support a
proposal to list it as endangered or threatened, but preparation and
publication of a proposal is precluded by higher priority listing
actions (i.e., it met our definition of a candidate species).
As a result of our review, we find that warranted-but-precluded
findings is appropriate for the below 20 species, including 1 new
candidate species. We emphasize that we are not proposing these species
for listing, but we do anticipate developing and publishing proposed
listing rules for these species in the future, with an objective of
making expeditious progress in addressing all 20 of these foreign
species within a reasonable timeframe.
Table 1 provides a summary of all updated determinations of the 20
taxa in our review. All taxa in Table 1 of this notice are ones for
which we find that listing is warranted but precluded and are referred
to as ``candidates'' under the Act. The column labeled ``Priority''
indicates the LPN. Following the scientific name of each taxon (third
column) is the family designation (fourth column) and the common name,
if one exists (fifth column). The sixth column provides the known
historic range for the taxon. The avian species in Table 1 are listed
taxonomically.
Table 1--Species in 2012 Annual Notice of Review
[C = listing is warranted but precluded]
----------------------------------------------------------------------------------------------------------------
Status
--------------------------------- Scientific name Family Common name Historic range
Category Priority
----------------------------------------------------------------------------------------------------------------
Birds
----------------------------------------------------------------------------------------------------------------
C.............. 2.............. Pauxi unicornis... Craciidae......... southern helmeted Bolivia, Peru.
curassow.
C.............. 2.............. Rallus Rallidae.......... Bogota rail....... Colombia.
semiplumbeus.
C.............. 8.............. Porphyrio Rallidae.......... takahe............ New Zealand.
hochstetteri.
C.............. 8.............. Haematopus Haematopodidae.... Chatham Chatham Islands,
chathamensis. oystercatcher. New Zealand.
C.............. 8.............. Cyanoramphus Psittacidae....... orange-fronted New Zealand.
malherbi. parakeet.
C.............. 8.............. Eunymphicus Psittacidae....... Uvea parakeet..... Uvea, New
uvaeensis. Caledonia.
C.............. 8.............. Dryocopus galeatus Picidae........... helmeted Argentina, Brazil,
woodpecker. Paraguay.
C.............. 2.............. Dendrocopus Picidae........... Okinawa woodpecker Okinawa Island,
noguchii. Japan.
C.............. 2.............. Aulacorhynchus Ramphastidae...... yellow-browed Peru.
huallagae. toucanet.
C.............. 11............. Scytalopus Conopophagidae.... Brasilia tapaculo. Brazil.
novacapitalis.
C.............. 12............. Bowdleria punctata Sylviidae......... Codfish Island Codfish Island,
wilsoni. fernbird. New Zealand.
C.............. 2.............. Zosterops Zosteropidae...... Ghizo white-eye... Solomon Islands.
luteirostris.
C.............. 8.............. Tangara peruviana. Thraupidae........ black-backed Brazil.
tanager.
C.............. 6.............. Strepera graculina Cracticidae....... Lord Howe pied Lord Howe Islands,
crissalis. currawong. New South Wales.
----------------------------------------------------------------------------------------------------------------
Invertebrates (Butterflies)
----------------------------------------------------------------------------------------------------------------
C.............. 6.............. Eurytides (= Paplionidae....... Harris' mimic Brazil.
Graphium or swallowtail.
Mimoides)
lysithous
harrisianus.
C.............. 2.............. Eurytides (= Paplionidae....... Jamaican kite Jamaica.
Graphium or swallowtail.
Neographium or
Protographium or
Protesilaus)
marcellinus.
C.............. 5.............. Parides ascanius.. Paplionidae....... Fluminense Brazil.
swallowtail.
C.............. 2.............. Parides hahneli... Paplionidae....... Hahnel's Amazonian Brazil.
swallowtail.
C.............. 8.............. Teinopalpus Paplionidae....... Kaiser-I-Hind Bhutan, China,
imperialis. swallowtail. India, Laos,
Myanmar, Nepal,
Thailand,
Vietnam.
----------------------------------------------------------------------------------------------------------------
Mollusc
----------------------------------------------------------------------------------------------------------------
C.............. 2.............. Mulinia Mactridae......... Colorado delta Mexico.
coloradoensis. clam.
----------------------------------------------------------------------------------------------------------------
Findings on Species for Which Listing Is Warranted But Precluded
We have found that, for the 20 taxa discussed below, publication of
proposed listing rules is warranted but precluded due to the need to
complete pending, higher priority proposals to determine whether any
species is an endangered species or a threatened species. We will
continue to monitor the status of these species as new information
becomes available (see Monitoring, below). Our review of new
information will determine if a change
[[Page 24607]]
in status is warranted, including the need to emergency list any
species or change the LPN of any of the species. In the following
section, we describe the status of and threats to the individual
species.
Birds
Southern Helmeted Curassow (Pauxi unicornis), LPN = 2
Taxonomy
The Bolivian population of the nominate (a subspecies with the same
name as the species) species (Pauxi unicornis unicornis) remained
unknown to science until 1937 (Cordier 1971). The Peruvian subspecies
is Pauxi unicornis koepckeae (Gasta[ntilde]aga et al. 2011, p. 267).
What is now recognized as the southern helmeted curassow may in fact be
two separate species that are currently recognized as two subspecies
(Pauxi unicornis unicornis and Pauxi unicornis koepckeae). It has been
proposed that these subspecies of Pauxi unicornis may represent two
different species because they are separated by more than 1,000 km (621
mi), and have distinct characteristics (Gasta[ntilde]aga et al. 2011,
p. 267). Currently, both BirdLife International (BLI) and the
International Union for Conservation of Nature (IUCN) recognize the
southern helmeted curassow as Pauxi unicornis and do not specifically
address either subspecies. The Integrated Taxonomic Information System
(ITIS) recognizes Pauxi unicornis as a full species as well as both
subspecies (ITIS 2012, accessed June 11, 2012).
In many cases, taxonomy of species can be unclear. There is
substantial discussion in scientific literature that debates the
classification of species and whether various entities deserve species
status rather than subspecies status (Phillimore 2010, pp. 42-53; James
2010, pp. 1-5; Pratt 2010, pp. 79-89). This is sometimes significant
with respect to conservation measures, particularly when considering
the criteria used by organizations such as the IUCN. These two
subspecies may in fact be species, but for the purpose of this review,
these two subspecies essentially face the same threats, are generally
in the same region of South America, and both have quite small
populations. Absent peer-reviewed information to the contrary and based
on the best available information, we recognize both subspecies as
being valid. For the purpose of this review, we are reviewing the
petitioned entity, Pauxi unicornis, which includes all subspecies. We
welcome comments on the classification of the southern helmeted
curassow.
Species Description
The southern helmeted curassow, also known as the helmeted or
horned curassow or the unicorn bird, is one of the least frequently
encountered South American bird species (Tobias and del Hoyo 2006, p.
61; Maillard 2006, p. 95; Cox et al. 1997, p. 199). This may be due to
the inaccessibility of its preferred habitat and its apparent
intolerance of human disturbance (Macleod et al. 2009, pp. 15-16;
Herzog and Kessler 1998).
This species of curassow inhabits dense, humid, lower montane
forest and adjacent evergreen forest at altitudes of between 450 and
1,200 meters (m) (1,476 to 3,937 feet) (Cordier 1971; Herzog and
Kessler 1998). It prefers eating nuts of the almendrillo tree
(Byrsonima wadsworthii (Cordier 1971)), but also consumes other nuts,
seeds, fruit, soft plants, larvae, and insects (BLI 2008). Clutch size
of the southern helmeted curassow is probably two, as in other
Cracidae. However, the only nest found contained only one egg (Banks
1998; Cox et al. 1997; Renjifo and Renjifo 1997 as cited in BLI 2010a).
Range
The southern helmeted curassow is only known to occur in central
Bolivia and central Peru (BirdLife International (BLI) 2012). One of
the locations where it has been found is Valle de la Luna, on the east
side of the R[iacute]o Leche, 0.5-1.0 km (0.3-0.6 miles) north of
Parque Nacional Carrasco, in the Department of Cochabamba, Bolivia. The
Valley is an extensive, flat, largely unvegetated area at 450 m (1,476
ft) above sea level, bounded by the R[iacute]o Leche to the west and by
steep cliffs and primary forest to the east. It has also been located
in Ambor[oacute] (Macleod et al. 2009, pp. 15-16).
Research indicates that the species once inhabited a contiguous
area along the Peruvian-Bolivian Andean mountain cloud forest chain,
and now has become two isolated populations or subspecies (see Appendix
A in Docket FWS-R9-ES-2012-0044 for a map) that are at the peripheries
of its former range (Gasta[ntilde]aga et al. 2011, p. 273). In Bolivia,
the horned curassow is found only in the departments of Cochabamba and
Santa Cruz (BLI 2012; Maillard 2006, p. 95). All current records are
from in or near three protected areas--Ambor[oacute], Carrasco, and
Isiboro-S[eacute]core (Asociaci[oacute]n Armon[iacute]a 2012; Maillard
2006, p. 95).
In Ambor[oacute] National Park (Yungas Inferiores de
Ambor[oacute]), the southern helmeted curassow was regularly seen on
the upper Saguayo River (Saguayo R[iacute]o) (Wege and Long 1995). More
recently, it has been observed in the adjacent Ambor[oacute] and
Carrasco National Parks (Maillard 2006, p. 95; Brooks 2006; Herzog and
Kessler 1998). It was also found in Isiboro-Secure Indigenous Territory
and National Park (TIPNIS), and along the western edge of the
Cordillera Mosetenes, Cochabamba. A recent survey located a few
southern helmeted curassows across the northern boundary of Carrasco
National Park, where it was historically found (MacLeod 2007 as cited
in BLI 2009a). Some surveys conducted between 2004 and 2005 found no
evidence of the species anywhere north or east of Ambor[oacute],
Carrasco, and Isiboro-Secure National Parks in central Bolivia (Macleod
et al. 2009, p. 16). However, one survey in 2005 found it approximately
8 km (5 mi) northeast of Palmasola in the Integrated Management Natural
Area, Ambor[oacute], Santa Cruz Department (Maillard 2006, p. 95). It
was found only in six locations during the surveys. Extensive surveys
over the last several years have failed to locate the species in Madidi
National Park, La Paz, on the eastern edge of the Mosetenes Mountains
in Cochabamba, or in the R[iacute]o Tambopata area near the Bolivia-
Peru border (MacLeod in litt. 2003 as cited in BLI 2010a; Hennessey
2004a as cited in BLI 2009a; Maccormack in litt. 2004 as cited in BLI
2008).
In Peru, Pauxi u. koepckeae is known only from the Sira Mountains
(known as the Reserva Comunal El Sira), in the Department of
Hu[aacute]nuco (Gasta[ntilde]aga et al. 2011, pp. 267, 269; Tobias and
del Hoyo 2006). Surveys suggest that the southern helmeted curassow is
extremely rare here (Gasta[ntilde]aga et al. 2011, p. 267; MacLeod in
litt. 2004 as cited in BLI 2008; Maccormack in litt. 2004 as cited in
BLI 2009a; Gasta[ntilde]aga and Hennessey 2005; Mee et al. 2002). Pauxi
u. koepckeae occurs in an area that is isolated from the Andes
Mountains.
Population
The total population of southern helmeted curassow is estimated to
be between 1,500 and 7,500 individuals (BLI 2012). Within its limited
range, the southern helmeted curassow typically occurs at densities of
up to 20 individuals per square kilometer (km\2\) (Macleod 2007 as
cited in BLI 2008). Within Peru, the population is estimated to have
fewer than 400 individuals (Gasta[ntilde]aga in litt. 2007, as cited in
BLI 2010a). In recent years, extensive field surveys of southern
helmeted curassow habitat have resulted in little success in locating
the
[[Page 24608]]
species (Hennessey 2004a; MacLeod in litt. 2004 as cited in BLI 2009a;
Maccormack in litt. 2004 as cited in BLI 2010a; MacLeod in litt. 2003
as cited in BLI 2010a; Mee et al. 2002). As of 2009, the estimated
decline in the overall population over 10 years was 50 to 79 percent
(BLI 2009b).
Factors Affecting the Species
The southern helmeted curassow is dependent upon particular
environmental conditions that have been altered over the past few
centuries. Southern helmeted curassow populations are estimated to be
declining very rapidly (Gasta[ntilde]aga et al. 2011, p. 277;
Gasta[ntilde]aga 2006, p. 15). This species has a small range and is
known only from a few locations, and continues to be subject to habitat
loss and hunting pressure. The species was observed in a forested area
approximately 5 km (3 mi) from the Valle de la Luna clay lick site
where parrots forage for nutrients (Mee et al. 2005, p. 4), but it had
apparently been exterminated by hunting within 5 years (McLeod in litt.
in Mee et al. 2005, p. 4).
In Bolivia, large parts of southern helmeted curassow habitat are
ostensibly protected by inclusion in the Ambor[oacute] and Carrasco
National Parks and in the Isiboro-Secure Indigenous Territory and
National Park. However, pressures on the species' populations continue
(BLI 2010a). Forests within the range of the southern helmeted curassow
in Bolivia are being cleared for crop cultivation by colonists from the
altiplano (Maillard 2006, pp. 95-98). Rural development including road
building inhibits its dispersal (Fjelds[aring] in litt. 1999 as cited
in BLI 2010; Herzog and Kessler 1998). Historically, the species was
often hunted for meat due to its large size and for its unique blue
casque, or horn, which the local people used to make cigarette lighters
(Collar et al. 1992; Cordier 1971). In the Ambor[oacute] region of
Bolivia, the bird's head was purportedly used in folk dances (Hardy
1984 as cited in Collar 1992). It is unclear whether this practice
still occurs.
In Peru, the main factor affecting P. u. koepckeae is hunting by
local communities (Gasta[ntilde]aga et al. 2011, p. 277), but the
species is also impacted by subsistence agriculture forest clearing by
colonists, mining, oil exploration, and illegal logging (MacLeod in
litt. 2000 as cited in BLI 2010a). The R[iacute]o Leche area
experienced a 100 percent population decline in less than 5 years
likely due to hunting or other pressures (Macleod et al. 2009, p. 16).
In Carrasco National Park, the species had been abundant during surveys
in 2001, but in 2004, there were no visual or auditory sightings
(Macleod et al. 2009, p. 16). The disappearance may be due to illegal
human encroachment. Unless threats are mitigated, this trend will
probably continue for the next several years (Macleod in litt. 2005).
Peru and Bolivia have enacted various laws and regulatory
mechanisms to protect and manage wildlife and their habitats. However,
the remaining suitable habitat for this species is fragmented and
degraded. Habitat throughout the species' range has been and continues
to be altered as a result of human activities, particularly human
encroachment and concomitant increased pressure on natural resources.
Despite the recent improvements in laws in Peru and Bolivia,
destructive activities are ongoing within protected areas and in these
species' habitat, indicating that the laws governing wildlife and
habitat protection in both countries are either inadequate or
inadequately enforced to protect the species or to mitigate ongoing
habitat loss and population declines.
The FAO conducted a review of forest policies and laws in 2010, and
a summary for Peru and Bolivia is in Table 2. The study found that,
although Peru does not have a national forest policy, it does have both
a national forest program and law in place. Bolivia has a national
forest policy, national forest program, and law program in place. No
forest laws at the subnational level (such as jurisdictions equivalent
to states in the United States) exist in these countries. FAO reported
that Peru and Bolivia reported a significant loss of primary forests;
this loss peaked in the period 2000-2005 in Peru and increased in
Bolivia in the last decade compared with the 1990s (p. 56). FAO also
reported that, at a regional level, South America suffered the largest
net loss of forests between 2000 and 2010; at a rate of approximately
4.0 million ha (9.9 million ac) per year (p. xvi). In Bolivia, habitat
is protected either on the national or departmental level. Recently,
Bolivia passed the ``Law of Rights of Mother Earth'' to add strength to
its existing environmental protection laws. This law has the objective
of recognizing the rights of the planet (Government of Bolivia, 2010).
Table 2--Summary of Forest Policies and Laws in Bolivia and Peru (Adapted From FAO Global Forest Resource Assessment 2010, p. 303)
--------------------------------------------------------------------------------------------------------------------------------------------------------
National forest policy National forest program Forest law national
-------------------------------------------------------------------------------------------------------------------------
Country Subnational
Exists Year Exists Year Status National--type Year exists
--------------------------------------------------------------------------------------------------------------------------------------------------------
Bolivia....................... Yes.............. 2008 Yes.............. 2008 In implementation Specific forest 1996 No
law.
Peru.......................... No............... -- Yes.............. 2004 In implementation Specific forest 2000 No
law.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Conservation Status
The southern helmeted curassow is classified as endangered on the
IUCN Red List (BLI 2012; BLI 2009a). It is not listed in any appendices
of the Convention on International Trade in Endangered Species of Wild
Fauna and Flora (CITES; www.cites.org), which regulates international
trade in animals and plants of conservation concern.
It is legally protected in the El Sira Communal Reserve (most of
the Sira Mountains), but hunting still likely occurs in this area. The
Armon[iacute]a Association is carrying out an environmental awareness
project to inform local people about the threats to the southern
helmeted curassow (Asociaci[oacute]n Armon[iacute]a 2010) and is
conducting training workshops with park guards to help improve chances
for its survival. Armon[iacute]a is also attempting to estimate
southern helmeted curassow population numbers to identify its most
important populations and is evaluating human impact on the species'
natural habitat.
In the previous ANOR, the southern helmeted curassow received an
LPN of 2. After reevaluating the threats to the species, we have
determined that no change in the LPN is warranted. The southern
helmeted curassow does not represent a monotypic genus. It faces
threats that are high in magnitude based on its small, limited range.
The few locations where it is believed to exist continue to be subject
to habitat
[[Page 24609]]
destruction and loss from agricultural development, road building, and
hunting. Although the population is estimated to be between 1,500 and
7,500 individuals, this may be an overestimate because it has such a
limited range and the population trend is believed to be rapidly
declining (Jetz et al. 2007, p. 1). The best scientific information
available suggests that the population decline will continue in the
future. Because the species is experiencing such a significant
population decline and is still experiencing significant pressures,
this species has an LPN of 2 to reflect imminent threats of high
magnitude.
Bogota Rail (Rallus semiplumbeus), LPN = 2
Species and Habitat Description
The Bogota rail is found in the East Andes of Colombia on the
Ubat[eacute]-Bogot[aacute] Plateau in Cundinamarca and Boyac[aacute].
It occurs in the temperate zone at 2,500-4,000 m (8,202-13,123 ft and
occasionally as low as 2,100 m) (6,890 ft) in savanna and p[aacute]ramo
marshes (BLI 2010b). Bogota rails inhabit wetland habitats with
vegetation-rich shallows that are surrounded by tall, dense reeds and
bulrushes (Stiles in litt. 1999 as cited in BLI 2010b). The species
inhabits the water's edge, in flooded pasture and along small overgrown
dykes and ponds (Varty et al. 1986 as cited in BLI 2010b; Fjelds[aring]
1990 as cited in BLI 2010b; Fjelds[aring] and Krabbe 1990 as cited in
BLI 2010b; Salaman in litt. 1999 as cited in BLI 2010b). Nests have
been recorded adjoining shallow water in beds of Scirpus (bulrush or
sedge) and Typha (cat tail) species (Stiles in litt. 1999 as cited in
BLI 2010b). The Bogota rail is omnivorous, consuming a diet that
includes aquatic invertebrates, insect larvae, worms, mollusks, dead
fish, frogs, tadpoles, and plant material (BLI 2012; Varty et al. 1986
as cited in BLI 2010b).
Population and Range
The current population is estimated to be between 1,000 and 2,499
individuals (BLI 2012). Although the Bogota rail has been observed in
at least 21 locations in Cundinamarca, the Bogota rail population is
thought to be declining. It is still described as being uncommon to
fairly common, with a few notable populations, including nearly 400
birds at Laguna de Tota, approximately 50 bird territories at Laguna de
la Herrera, approximately 100 birds at Parque La Florida, and
populations at La Conejera marsh and Laguna de Fuquene (BLI 2010b).
Factors Affecting the Species
Its suitable habitat has become widely fragmented (BLI 2012; BLI
2010b). Wetland drainage, pollution, and siltation on the Ubat[eacute]-
Bogot[aacute] plateau have resulted in major habitat loss and few
suitably vegetated marshes remain. All major savanna wetlands are
threatened, predominately due to draining, but also due to agricultural
runoff, erosion, dyking, eutrophication caused by untreated sewage
effluent, insecticides, tourism, hunting, burning, reed harvesting,
fluctuating water levels, and increasing water demand. Additionally,
road construction may result in colonization and human interference,
including introduction of exotic species in previously stable wetland
environments (Cortes in litt. 2007 as cited in BLI 2010b).
Conservation Status
The Bogota rail is listed as endangered by IUCN primarily because
its range is very small and is contracting due to widespread habitat
loss and degradation. It is not listed in any appendices of CITES. Some
Bogota rails occur in protected areas such as Chingaza National Park
and Carpanta Biological Reserve. However, most savanna wetlands are
virtually unprotected (BLI 2012).
In the previous ANOR, the Bogota rail received an LPN of 2. After
reevaluating the threats to this species, we have determined that no
change in the listing priority number for the species is appropriate.
The Bogota rail does not represent a monotypic genus. It faces threats
that are high in magnitude due to the pressures on the species'
habitat. Its range is very small and is rapidly contracting because of
widespread habitat loss and degradation (agricultural encroachment,
erosion, dyking, and eutrophication). The population is believed to be
between 1,000 and 2,499 individuals, and the population trend is
believed to be rapidly declining. The factors affecting the species are
occurring now, are ongoing, and are therefore imminent. Thus, the LPN
remains at 2 to reflect imminent threats of high magnitude.
Takahe (Porphyrio hochstetteri), LPN = 8
Species Description
The takahe, a flightless rail endemic to New Zealand, is the
world's largest extant (living) member of the rail family (del Hoyo et
al. 1996). Porphyrio mantelli was split into P. mantelli (extinct) and
P. hochstetteri (extant) (Trewick 1996). Takahe territories are between
several hectares to more than 100 ha (247 acres) depending on the
availability of their preferred food sources (Lee and Jamieson 2001, p.
57). Takahe defend their territories aggressively against other takahe,
which means that they will not form dense colonies even in optimal
habitat. They are long-lived birds, probably living between 14 and 20
years (Heather and Robertson 1997) and have a low reproductive rate,
with clutches consisting of one to three eggs. The species forms life-
long pair bonds and generally occupy the same territory throughout life
(Reid 1967). Generally, only a few pairs in the wild manage to
consistently rear more than one chick each year.
Population and Range
Historically, takahe were common throughout most coastal and
eastern parts of the South Island of New Zealand (Grueber and Jamieson
2011, p. 384; Grueber and Jamieson 2008, p. 384). Today, the species is
present in the Murchison and Stuart Mountains and was introduced to
five island reserves and one privately owned island (Wickes et al.
2009, p. 10; Collar et al. 1994). Small groups of takahe were
introduced to Maud Island in the Marlborough Sounds, Mana and Kapiti
Islands north of Wellington, Tiritiri Matangi Island in the Hauraki
Gulf northeast of Auckland, and Maungatautari Ecological Island,
Waikato. The population in the Murchison Mountains of Fiordland
National Park, South Island, is the only mainland population and that
has the potential for sustaining a large, viable population (New
Zealand Department of Conservation (NZDOC) 2010; 2009b; 2007; Bunin and
Jamieson 1996).
When rediscovered in 1948, it was estimated that the takahe
population consisted of about 260 pairs (Heather and Robertson 1997;
del Hoyo 1996). In 1981, the population reached a low of an estimated
120 birds. As of 2010, it was estimated that there were about 100 birds
in the wild in the Murchison Mountains (NZDOC 2010), but there may be
up to 300 in this area (https://www.mitre10takaherescue.co.nz, accessed
July 17, 2012). Currently, there are approximately 350 individuals that
are receiving conservation efforts (Grueber et al. 2012, p. 4; Wickes
et al. 2009).
Factors Affecting the Species
Several factors have led to the decline in the species' population.
Factors that had affected this species in the past included hunting, a
competitor (the introduced brush-tailed possum (Trichosurus
vulpecula)), and predators
[[Page 24610]]
such as stoats (Mustela erminea) and the threatened weka (Gallirallus
australis), a flightless woodhen that is endemic to New Zealand (BLI
2010c). The NZDOC ran a trial stoat control program in a portion of the
takahe Special Area to measure the effect on takahe survival and
productivity. Initial assessment indicated that the control program had
a positive influence (NZDOC 2009, pp. 35-36); however, occasionally,
stoat eradication still occurs as needed.
Now the primary factors affecting the species are limited suitable
habitat and a very small population size (Grueber et al. 2012, pp. 1-
5); however, other factors that likely affect this species are
discussed in this section. Although there are no known diseases that
are currently a concern in the takahe, diseases in avian species are
currently a concern in New Zealand and are being monitored (McLelland
et al. 2011, pp. 163-164).
Studies suggest the level of inbreeding may be underestimated for
this species because this species has persisted at a small population
size for over 150 years (Grueber and Jamieson 2011, p. 392; Grueber et
al. 2010, pp. 7-9). Relative to other species, the takahe has low
genetic diversity (Grueber et al. 2010, pp. 7-9). There is growing
evidence that inbreeding can negatively affect small, isolated
populations. Inbreeding can result in reduced fitness potential and
higher susceptibility to biotic and abiotic disturbances in the short
term, and an inability to adapt to environmental change in the long
term.
After substantially decreasing in numbers, the species experienced
a loss of fitness as a result of recent inbreeding (Grueber et al.
2011; Grueber and Jamieson 2008, p. 649). Small populations generally
recover slowly from catastrophic events (Crouchley 1994); this is a
concern because this species has such a small population size
(approximately 350 individuals). To increase the population, NZDOC has
been removing some eggs from the wild, captive rearing them, and
reintroducing them back into the wild (also refer to Conservation
Status, below) (Grueber et al. 2012, p. 1; NZDOC 2009, p. 26).
Lead exposure may affect this species on some of the islands (Youl
2009, pp. 79-83). Lead levels in the island populations were found to
be higher than those on the mainland. Older buildings on some of the
island contain lead paint. One or more takahe breeding pairs were
located near buildings containing lead-based paint. A family group on
one island that was close to a building containing lead paint was found
to have significantly higher lead levels than a family group located
away from buildings (Youl 2009, p. 80). Lead has been found to affect
the learning capacity of avian species (Youl 2009, pp. 11-13). This
exposure to lead may cause decreased fitness of takahe.
Severe weather may also be a limiting factor to the takahe (BLI
2010c; Bunin and Jamieson 1995). Weather patterns in the Murchison
Mountains vary from year to year. High chick and adult mortality may
occur during extraordinarily severe winters, and poor breeding may
result from severe stormy weather during spring breeding season
(Crouchley 1994). The severity of winter conditions adversely affects
survivorship of takahe in the wild, particularly of young birds
(Maxwell and Jamieson 1997).
Another factor of concern is that the mainland population and the
populations on the island reserves may be at carrying capacity (Grueber
et al. 2012, p. 1; Jamieson 2010, p. 122; Wickes et al. 2009, p. 29;
Greaves 2007, p. 17). Rareness of a vital component of its diet, C.
conspicua, may be a limiting factor affecting the lack of viability of
the takahe population (Wickes et al. 2009, pp. 39-40). C. conspicua is
less common in the forest understory in the Takahe Special Area than it
was historically. NZDOC has conducted research and has attempted to
reintroduce and increase the prevalence of this plant species in the
Murchison Mountains Reserve (Wickes et al. 2009, pp. 39-40). The island
populations now primarily consume introduced grasses (BLI 2010c). Some
researchers have theorized that consumption of these nonnative species
may contribute to inadequate nutrition and subsequent nest failure
(Jamieson 2003, p. 708); however, this theory has not been confirmed.
Conservation Status
The takahe is listed as endangered on the IUCN Red List because it
has an extremely small population (BLI 2012). It is not listed in any
appendices of CITES; international trade is not a concern. New Zealand
considers the takahe to be an endangered species, and it is classified
as nationally critical under the New Zealand Threat Classification
System. The NZDOC, through its 2007-2012 Takahe Recovery Plan, is
managing the populations of the species through various conservation
efforts such as captive breeding, population management, eradication of
predators, and management of grasslands (Wickes et al. 2009, p. 9). The
Takahe Recovery Group has explored strategies to increase the
productivity of the island populations by establishing new island sites
or relocating some birds to the Fiordland population (Grueber et al.
2012, p. 4). The NZDOC has been involved in a captive-breeding and
release program to improve takahe recovery since 1983 (NZDOC 2009, p.
29). Excess eggs from wild nests are managed to produce birds suitable
for releasing back into the wild population in the Murchison Mountains.
Some of these captive-reared birds have been used to establish five
predator-free, offshore island reserves. Overall, this species'
population numbers fluctuate annually, but appear to be slowly
increasing due to intensive management of the island reserve
populations (Grueber et al. 2012, pp. 1-5; Wickes et al. 2009). Pest
eradication on Motutapu Island (1,500 ha) (3,707 ac) may provide
suitable habitat for this species (Grueber et al. 2012, p. 4). These
captive-breeding efforts have increased the rate of survival of chicks
reaching 1 year of age from 50 to 90 percent (Wickes et al. 2009).
Although takahe that were translocated to the islands had higher rates
of egg infertility and low hatching success when they breed (Jamieson &
Ryan 2000), there has been recent breeding success. In 2010, NZDOC
reported that at least 21 chicks hatched on predator-free islands, and,
for the first time, the mainland population on Maungatautari Ecological
Island, Waikato, produced a chick, indicating an improvement in
conservation efforts.
In the previous ANOR, the takahe received an LPN of 8. After
reevaluating the threats to the takahe, we have determined that no
change in the classification of the magnitude and imminence of threats
to the species is warranted at this time. The takahe does not represent
a monotypic genus. The current population is small (approximately 350
individuals), and the species' distribution is extremely limited.
Although it has a small population, limited suitable habitat, and may
experience inbreeding depression, because the NZDOC is actively
involved in measures to aid the recovery of the species (Grueber et al.
2012; Wickes et al. 2009, 58 pp.; NZDOC 2009e, 3 pp.), we find the
threats that are moderate in magnitude. The NZDOC has implemented a
captive breeding and release program to supplement the mainland
population, and established several offshore island reserves. However,
despite conservation efforts, the threats are ongoing and, therefore,
imminent. Lack of suitable habitat and predation, combined with the
takahe's small population size and naturally low reproductive rate, are
threats to this species that are moderate in magnitude. Thus, the LPN
remains at 8 to reflect
[[Page 24611]]
imminent threats of moderate magnitude.
Chatham Oystercatcher (Haematopus chathamensis), LPN = 8
Species and Habitat Description
The Chatham oystercatcher is the most rare oystercatcher species in
the world (NZDOC 2001). It is endemic to the Chatham Island group
(Schmechel and Paterson 2005; Marchant and Higgins 1993), which is 860
km (534 mi) east of mainland New Zealand. The Chatham Island group
consists of two large, inhabited islands (Chatham and Pitt) and
numerous smaller islands. Two of the smaller islands (Rangatira and
Mangere) are nature reserves. The Chatham Island group has an ecosystem
that consists of biota that is quite different from New Zealand's
mainland. The remote marine setting, distinct climate, and physical
makeup have led to a high degree of endemism (Aikman et al. 2001). The
southern part of the Chatham oystercatcher range is dominated by rocky
habitats with extensive rocky platforms. The northern part of the range
is a mix of sandy beach and rock platforms (Aikman et al. 2001);
however, the species exhibits preference for intertidal rock platforms
and wide sandy beaches (Schmechel and Paterson 2005, p. 5).
Pairs of Chatham oystercatchers occupy their territory all year,
while juveniles and subadults form small flocks or occur alone on
vacant sections of the coast. Their scrape nests (shallow-rimmed
depressions in soil or vegetation) are usually formed on sandy beaches
just above spring-tide and storm-surge level or among rocks above the
shoreline and are often under the cover of small bushes or rock
overhangs (Heather and Robertson 1997).
Population and Range
Records of the Chatham Island oystercatcher indicate that,
historically, this species has likely always existed as a sparse and
small population (Moore 2008, p. 27). Although the population of this
species has never likely been very large (Moore 2008, p. 27), the
population has increased since the 1970s to approximately 300 birds due
to predator control and habitat protection (NZ DOC 2012; Moore 2009b,
p. 32; Moore 2005a). In the early 1970s, the Chatham oystercatcher
population was approximately 50 birds (Moore 2008, p. 20; del Hoyo
1996).
The islands of Mangere and Rangatira were designated as Nature
Reserves in the 1950s, and efforts began to save the native bird
species including the removal of sheep in the 1960s. However, the
Chatham oystercatcher population has not done well on those islands
(Moore 2008, p. 29). Over the last 20 years, the population on South
East Island (Rangatira), an island free of mammalian predators, has
gradually declined since the 1970s for unknown reasons (Moore 2009a, p.
9; Schmechel and O'Connor 1999). The decline is likely due to large
waves during sea storms, which have destroyed the nests (Moore 2009a,
p. 9). The distribution of oystercatchers in the Chatham Islands has
changed from a southern to a northern dominance since 1970 (Moore 2008,
p. 25). In the 1970s, 65 percent of the population was found on the
southern three islands (Pitt, Mangere and Rangatira) and 35 percent on
Chatham Island. As of 2006, 81 percent of the population was on Chatham
Island (62 percent in northern core census areas) and 19 percent was on
the southern islands (Moore 2008, p. 25).
Factors Affecting the Species
Historically, cattle and sheep grazing, which began in the 1840s-
1850s, affected this species and its habitat (Moore 2008, p. 28). On
Chatham Island, by 1901 there were 60,000 sheep, although they have
since been removed. Much of the forest had been burned and cleared
(Butler & Merton 1992 in Moore 2008, p. 28), particularly in coastal
areas (Bell & Robertson 1994 in Moore 2008, p. 28).
Predation, nest disturbance, invasive plants, and spring tides and
storm surges are factors that significantly impact the Chatham
oystercatcher population (NZDOC 2012, p. 2; Moore 2009a, pp. 8-9; Moore
2005; NZDOC 2001). After three summers of video recording, 13 of the 19
nests recorded were predated by cats, but of the remaining six nest
failures, weka were responsible for three; red-billed gull, one; sheep-
trampling, one; and sea wash, one (Moore 2005b). When a cat was
present, eggs usually lasted only 1 or 2 days. The weka, although
endemic to New Zealand, is not endemic to the Chatham Islands, and was
introduced in the early 1900s. Weka were observed preying upon this
species three times through camera trapping between 1999 and 2001
(Moore 2009a, p. 8). Weka is not considered as severe a threat to the
Chatham oystercatcher as feral cats because weka only prey on eggs when
adult oystercatchers are not present.
Severe reduction in Chatham oystercatcher numbers is attributed
primarily to heavy predation by cats (Felis catus) and weka (Moore
2009a, p. 8) (NZ 2012). Feral cats have become established on two of
the Chatham Islands after being introduced as pets. Video cameras
placed to observe nests indicated that feral cats are a major nest
predator. Other predators include the native red-billed gull (Larus
scopulinus) and southern black-backed gull (L. dominicanus) (Moore
2005b).
Nest destruction and disturbance is caused by people fishing,
walking, or driving on or near nests. When a nesting area is disturbed,
adult Chatham oystercatchers often abandon their eggs for up to an hour
or more, leaving the eggs vulnerable to opportunistic predators. Eggs
are also trampled by livestock (Moore 2005a), and, in one case, a sheep
was observed lying on a nest (Moore 2009b, p. 21).
Another obstacle to Chatham oystercatcher populations is habitat
degradation. Marram grass (Ammophila arenaria) introduced to New
Zealand from Europe to protect farmland from sand encroachment (Moore
2008, p. 28) has spread to the Chatham Islands where it binds beach
sands forming tall dunes with steep fronts. In many marram-infested
areas, the strip between the high-tide mark and the fore dunes narrows
as the marram advances seaward. The dense marram grass is unsuitable
for nesting (Moore 2008, p. 28; Moore and Davis 2005). Consequently,
the Chatham oystercatcher is forced to nest closer to shore where nests
are vulnerable to tides and storm surges. In a study done by Moore and
Williams (2005), the authors found that, along the narrow shoreline,
many eggs were washed away and the adults would not successfully breed
without human intervention. Oystercatcher eggs were moved away from the
shoreline by fieldworkers and placed in hand-dug scrapes surrounded by
tidal debris and kelp.
Conservation Status
The Chatham oystercatcher is listed as critically endangered by the
NZDOC (2010d), making it a high priority for conservation management
(NZDOC 2007). It is classified as ``Endangered'' on the IUCN Red List
because it has an extremely small population (BLI 2012). It is not
listed in any appendices of CITES.
The birds of the Chatham Island group receive limited protection in
part due to their remote location and subsequent inaccessibility
(McBride 2011, p. 108). The NZDOC focused conservation efforts in the
early 1990s on predator trapping and fencing to limit domestic stock
access to nesting areas. In 2001, the NZDOC published the Chatham
Island Oystercatcher Recovery Plan 2001-2011 (NZDOC 2001, 24 pp.),
which prescribed actions such as translocation of nests away from
[[Page 24612]]
the high-tide mark and nest manipulation to further the conservation of
this species. These actions may have helped to increase hatching
success (NZDOC 2008b). Artificial incubation has been attempted but has
not increased productivity. Additionally, livestock have been fenced
and signs erected to reduce human and dog disturbance. Control of the
invasive Marram grass has been successful in some areas. Intensive
predator control combined with nest manipulation has resulted in a high
number of fledglings (BLI 2009; NZDOC 2008).
In the previous ANOR, the Chatham oystercatcher received an LPN of
8. After reevaluating the threats to this species, we have determined
that no change in the classification of the magnitude and imminence of
threats to the species is warranted at this time. The Chatham
oystercatcher does not represent a monotypic genus. The current
population estimate is very small (approximately 350 individuals), and
the species has a limited range. Although the NZDOC has taken measures
to aid the recovery of the species (the species' population is slowly
increasing on some islands), the species continues to face threats
(predation, trampling, low population numbers, and potential loss due
to storm surges) that are moderate in magnitude (McBride 2011, pp. 108,
110; Moore 2008, p. 30). However, the threats are still ongoing and,
therefore, imminent. The LPN remains an 8 to reflect imminent threats
of moderate magnitude.
Orange-Fronted Parakeet (Cyanoramphus malherbi), LPN = 8
Taxonomy
The orange-fronted parakeet, endemic to New Zealand, was treated as
an individual species until it was proposed to be a color morph of the
yellow-crowned parakeet, C. auriceps, in 1974 (Holyoak 1974). Further
taxonomic analysis indicated that it is a distinct species (Kearvell et
al. 2003). IUCN, BLI, and ITIS all recognize Cyanoramphus malherbi as a
full species (ITIS 2010, accessed July 16, 2010). The common name
``orange-fronted parakeet'' is used by BirdLife International (2000,
2004) as the common name for Aratinga canicularis, which is native to
Costa Rica. Because New Zealand continues to refer to this species as
the orange-fronted parakeet, we will use this common name in this
document. Absent peer-reviewed information to the contrary, we consider
Cyanoramphus malherbi to be a valid species.
Species Description
This species, also known as Malherbe's Parakeet or the
k[auml]k[auml]riki, is primarily green with yellow and orange coloring
on its head above its bill with some blue wing feathers. The female
lays between five and eight eggs and the eggs take 21-26 days to
incubate. During mast years (a year in which vegetation produces a
significant abundance of mast, or fruit), when there is a high
abundance of seed production by Nothofagus species (beech trees),
parakeet numbers can increase substantially; breeding has been linked
with food availability.
On South Island, seeds of Nothofagus species were observed to be a
major component of its diet (Kearvall et al. 2002, pp. 140-145). On the
mainland, the species is reliant on old mature beech trees with natural
cavities for nesting, but on the islands where it has been introduced,
it is less selective in its nest sites (Ortiz-Catedral and Brunton
2009, p. 153). In other areas where it has been introduced, it feeds on
a variety of other food sources. On Maud Island, a primary component of
its diet was Melicytus ramiflorus (mahoe) (Ortiz-Catedral and Brunton
2009, p. 385). In addition to eating seeds, the orange-fronted parakeet
feeds on fruits, leaves, flowers, buds, and small invertebrates (NZ DOC
2012, p. 1).
Population and Range
This species is described as never having been common (Mills and
Williams 1979). The orange-fronted parakeet has an extremely small and
fragmented population in addition to a limited range (BLI 2012). BLI
estimates its population in the wild is between 50 and 249 individuals
(BLI 2012). NZDOC's population estimate as of 2009 was between 100 and
200 individuals remaining in the wild. Between 2007 and 2009,
researchers introduced 62 birds to Maud Island, which has been
designated as a scientific reserve and consists of 296 hectares (731
ac). Seventy-one birds have been relocated to Tuhua Island, and these
birds appear to be breeding successfully (Fauna Recovery NZ 2012, p.
1).
At one time, the orange-fronted parakeet was scattered throughout
most of New Zealand (Harrison 1970). During the 19th century, the
species' distribution included South Island, Stewart Island, and a few
other offshore islands of New Zealand (NZDOC 2009a), but in the
Southern Alps it is now only found in a few North Canterbury valleys
(https://www.teara.govt.nz/en/small-forest-birds/10). This species
historically inhabited southern beech forests, with a preference for
areas bordering stands of N. solandri (mountain beech) (del Hoyo 1997;
Snyder et al. 2000; Kearvell 2002).
The South Island populations are located within a 30-km (18.6-mi)
radius in beech (Nothofagus spp.) forests of upland valleys (Hawdon and
Poulter valleys). These valleys are within Arthur's Pass National Park
and the Hurunui South Branch in Lake Sumner Forest Park in Canterbury,
South Island (NZDOC 2009a). Orange-fronted parakeets have been
relocated to predator-free Chalky Island in Fiordland, Maud Island,
Tuhua Island off Tauranga, and in 2011, Blumine Island (Butterfield
2011; Elliott and Suggate 2007; Ortiz-Catedral and Brunton 2009, p.
385). It is unclear whether the population trend is declining or stable
(Fauna Recovery NZ 2012; NZDOC 2009a).
Factors Affecting the Species
There are several reasons for the species' continuing decline; one
of the most prominent factors affecting the species is believed to be
predation by species that are not native to the island such as stoats
(Mustela erminea) and rats (Rattus spp.) (NZ 2012, p. 1). Large numbers
of stoats and rats in beech forests have caused large losses of
parakeets (NZDOC 2009c). Both species of predators are excellent
hunters on the ground and in trees. They predate parakeet nests in tree
cavities, which impacts primarily females, chicks, and eggs (NZDOC
2009c).
Habitat loss and degradation are two other factors that have
affected the orange-fronted parakeet's suitable habitat (NZDOC 2006, p.
2). Large areas of native forest have been felled or burned, decreasing
the habitat available for parakeets (NZDOC 2009c). Silviculture of
beech forests in the past had removed trees at an age when few would
become mature enough to develop suitable cavities for species such as
the orange-fronted parakeet (Kearvell et al. 2002, p. 261). The
species' habitat is also degraded by brush-tailed possum (Trichosurus
vulpecula), cattle, and deer, which all browse on plants, subsequently
changing the forest structure (NZDOC 2009c). This is problematic for
the orange-fronted parakeet, which feeds on seeds and insects on the
ground and low-growing shrubs (Kearvell et al. 2002, p. 261).
Other impacts to this species' viability exist. These include: (1)
Increased competition between the orange-fronted parakeet and the
yellow-crowned
[[Page 24613]]
parakeet for nest sites and food in a habitat that has been
significantly modified by humans; (2) competition with introduced finch
species (species unknown); and (3) competition with introduced wasps
(Vespula vulgaris and V. germanica), which compete with parakeets for
invertebrates as a dietary source (Kearvell et al. 2002). Hybridization
with other species was a concern--the orange-fronted parakeet was
thought to hybridize with the yellow-crowned parakeets (C. auriceps) at
Lake Sumner (Snyder et al. 2000). However, researchers have introduced
orange-fronted parakeets to islands where they are not likely to
overlap in range with other parakeet species (Ortiz-Catedral 2011, pp.
152-162).
Beak and Feather Disease Virus (BFDV) has been a concern for the
NZDOC, and the disease was discovered in wild native birds on South
Island for the first time in 2011 (Massaro et al. 2012, unpaginated).
The disease affects both wild and captive birds, with chronic
infections resulting in feather loss and deformities of beak and
feathers. Birds usually become infected in the nest by ingesting or
inhaling virus particles. Birds will either develop immunity, die
within a couple of weeks, or become chronically infected. We know of no
vaccine in existence to immunize populations. However, the NZDOC is
aware of the potential effect on the species, and efforts are in place
to protect the orange-fronted parakeet from this disease (Ortiz-
Catedral et al. 2010, pp. 618-619).
Conservation Status
The NZDOC (2009b) considers the orange-fronted parakeet to be the
most rare parakeet in New Zealand. Because it is classified as
``Nationally Critical'' with a high risk of extinction, the NZDOC has
been working intensively to ensure its survival. The species is also
listed as ``critically endangered'' on the IUCN Red List. It is listed
in Appendix II of CITES; however, trade is not currently a concern
(CITES 2010).
The NZDOC closely monitors all known populations of the orange-
fronted parakeet. Nest searches are conducted, nest cavities are
inspected, and surveys are conducted in other areas to look for
evidence of other populations. Because the NZDOC determined that the
species' largest threat is predation, they initiated a program to
remove predators in some parts of the species' range. ``Operation ARK''
is an initiative to respond to predator problems in beech forests in
order to prevent species' extinctions, including orange-fronted
parakeets. Predators are methodically controlled with traps, bait
stations, bait bags, and aerial spraying, when necessary (Wickes et al.
2009). The NZDOC also implemented a captive-breeding program for the
orange-fronted parakeet. Using captive-bred birds from the program,
NZDOC established several self-sustaining populations of the orange-
fronted parakeet on predator-free islands. The NZDOC monitors wild nest
sites and is actively managing the conservation of the species. Despite
these controls, predation by introduced species is still a factor
affecting the species because predators have not been completely
eradicated from this species' range.
In the previous ANOR, the orange-fronted parakeet received an LPN
of 8. After reevaluating the factors affecting the orange-fronted
parakeet, we have determined that no change in the classification of
the magnitude of threats to the species is warranted because NZDOC is
actively managing the species and the species' population seems to have
stabilized. The orange-fronted parakeet does not represent a monotypic
genus. Although the species' available suitable nesting habitat in
beech forests is extremely limited, translocations have taken place and
seem to be successful (Fauna Recovery NZ 2012). Additionally, the
current population is small (approximately 350 individuals), and the
species' distribution is extremely limited, but threats are being
mitigated. The species faces threats (competition for food and suitable
nesting habitat within highly altered habitat, predation, and habitat
degradation) that are moderate in magnitude because the NZDOC has taken
measures to aid the recovery of the species. However, because the
overall population of this species is very small and it could be
affected by BFDV, we find that the threats to this species are still
imminent. Thus, the LPN remains at 8 to reflect imminent threats of
moderate magnitude.
Uvea parakeet (Eunymphicus uvaeensis), LPN = 8
Species and Habitat Description
The Uvea parakeet is endemic to a small island in New Caledonia,
and is found primarily in old-growth forests, specifically those
dominated by the pine tree Agathis australis (del Hoyo et al. 1997).
The island is predominantly limestone and lacks deep soil layers (Boon
et al. 2008, p. 257).
Uvea parakeets feed on fruit, berries, and flowers and seeds of
native trees and shrubs (Robinet and Salas 2003, p. 71; del Hoyo et al.
1997). They also feed on a few types of crops in cultivated land
adjacent to their habitat. The greatest number of birds is seen close
to gardens with papayas (BLI 2010f). A significant characteristic is
that Uvea parakeets nest in cavities of native trees; so the absence of
suitable trees and nesting cavities may be a limiting factor (Robinet
and Salas 2003, p. 71). Their clutch size is generally two to three
eggs; and they are known to have another clutch if the first set of
eggs is destroyed (BLI 2010f).
Taxonomy
The Uvea parakeet, previously known as Eunymphicus cornutus, is now
recognized as a full species (Barr[eacute] et al. 2010, p. 695; Boon et
al. 2008, p. 251). Research presented in 2008 indicates that the Uvea
parakeet, based on genetic, ecological, behavioral, and biogeographical
evidence, is so markedly distinct that it warrants status as a species
(Boon et al. 2008, p. 259). ITIS considers the Uvea parakeet to be a
subspecies, Eunymphicus cornutus uvaeensis (ITIS 2012, accessed July
17, 2012). However, based on the best scientific and commercial data
available, we consider the Uvea parakeet to be E. uvaeensis.
Habitat and Range
The Uvea parakeet is found only on the island of Uvea (also known
as both Ouv[eacute]a Island and Wallis Island) in the Loyalty
Archipelago, New Caledonia (a territory of France) in the South Pacific
Ocean. The island is approximately 1,500 km (932 mi) east of Australia.
Uvea Island is 110 km\2\ (42 mi\2\) in size (Juniper and Parr 1998).
Most Uvea parakeets occur in a forested area consisting of about 20
km\2\ (7.7 mi\2\) in the north of the island, although some individuals
are found in strips of forest on the northwest isthmus and in the
southern part of the island, with a total potential habitat of
approximately 66 km\2\ (25.5 mi\2\) (BLI 2010f).
Population
One survey of Uvea parakeet in the early 1990s estimated that the
population was between 70 and 90 individuals (Hahn 1993). However,
another survey in 1993 (Robinet et al. 1996) yielded an estimate of
between 270 and 617 individuals. In 1999, it was believed that 742
individuals lived in northern Uvea, and 82 were in the south of the
Island (Primot 1999 as cited in BLI 2010f). Six surveys conducted
between 1993 and 2007 indicated a steady increase in population numbers
in both areas (Verfaille in litt. 2007 as cited in BLI 2010f). The
current population estimate is between 1,280
[[Page 24614]]
and 3,413 individuals (IUCN 2012; Barr[eacute] et al. 2010, p. 695).
Factors Affecting the Species
The primary factors that had affected this species have been the
capture of juveniles for the pet trade (Barre et al. 2010, pp. 695,
699). Capture of juvenile parakeets for the pet trade involves cutting
open nesting cavities to extract nestlings, which renders the holes
unsuitable for future nesting. However, since restrictions have been
put into place and the species has been monitored in association with
its recovery plan (see Conservation Status section below), it appears
that nest poaching is no longer occurring such that it significantly
affects this species (Barre et al. 2010, p. 699). Since conservation
awareness programs and protections such as guards were put into place,
the population has increased. However, because the human population on
the island is increasing, encroachment and other factors continue to be
concerns.
This species' status is still tenuous due to its small population
size. The primary factors affecting this species are now believed to be
the lack of nesting sites, predation, and competition from bees for
nesting sites (Barre et al. 2010, pp. 695, 699; Robinet et al. 2003,
pp. 73, 78). Introductions of Uvea parakeets to the adjacent island of
Lifou (to establish a second population) in 1925 and 1963 failed
(Robinet et al. 1995 as cited in BLI 2009), possibly because of the
presence of ship rats and Norway rats (Robinet in litt. 1997 as cited
in Snyder et al. 2000).
Preventive measures have been taken at the main seaport of entry to
the island and airport to prevent introduction of rats, but there is
concern that rats may be accidentally introduced in the future (BLI
2010, p. 3). As of 2010, the island was rat-free (Barre et al. 2010, p.
696). Although current Uvea parakeet numbers are increasing, any
relaxation of conservation efforts or introduction of nonnative rats,
other predators (particularly cavity-nesting bees, the ship rat, and
the Norway rat), or invasive species could lead to a rapid decline (BLI
2010f; Robinet et al. 1998). Artificial nests are being installed to
increase available nesting sites, and BirdLife Suisse (ASPO) is
continuing to destroy invasive bees' nests and is placing hives in
forested areas to attract bees for removal (Verfaille in litt. 2007 as
cited in BLI 2010f).
Conservation Status
This species is listed as ``Endangered'' on the IUCN Red List (IUCN
2012). Protection for this species increased when it was uplisted to
Appendix I of CITES from Appendix II in July 2000. This action was due
to its small population size, restricted area of distribution, loss of
suitable habitat, and the illegal pet trade (CITES 2000b). Various
conservation measures are in place for this species. A recovery plan
for the Uvea parakeet was developed by the Association for the
Protection of the Ouv[eacute]a Parakeet for the period 1997-2002, which
included strong local participation in population and habitat
monitoring (Robinet in litt. 1997 as cited in Snyder et al. 2000). A
second recovery plan was initiated in 2003. The species increased in
popularity and is now celebrated as an island emblem (Primot in litt.
1999 as cited in BLI 2009; Robinet and Salas 1997). In-situ management
(habitat protection and restoration such as providing nest boxes and
food) and public education about the Uvea parakeet and its habitat
occur (Barre et al. 2010, p. 699; Robinet et al. 1996). Increased
awareness of the plight of the Uvea parakeet and improvements in law
enforcement capability are helping to address illegal trade of the
species.
In the previous ANOR, the Uvea parakeet received an LPN of 2. We
reevaluated the threats to the Uvea parakeet and determined that a
change in the LPN for the species is warranted because the population
has significantly increased and now its population is estimated to be
between 1,280 and 3,413 individuals. The Uvea parakeet does not
represent a monotypic genus and it is an island endemic with limited
suitable habitat (Barre et al. 2010, p. 695). The Uvea parakeet
continues to experience a tenuous situation primarily due to the lack
of the old-growth forest on which the birds depend for nesting holes.
Management of the species has resulted in an increase in the
population; therefore, the threats are moderate in magnitude. Because
the species has increased in size due to conservation education, a ban
on commercial trade and a reduction in poaching, we have changed the
LPN from 2 to 8 to reflect imminent threats of moderate magnitude.
Helmeted woodpecker (Dryocopus galeatus), LPN = 8
Species and Habitat Description
The helmeted woodpecker is sympatric (co-occurs) with two other
woodpeckers that are similar in appearance: the lineated woodpecker
(Dryocopus lineatus) and the robust woodpecker (Campephilus robustus).
The helmeted woodpecker is a fairly small woodpecker (27-29 cm (10.6-
11.4 in) in length). It has a cinnamon face, containing no white
markings, barred underparts, brown-black wings, a white rump, and a
large, rounded red crest on its head (Lammertink et al. 2012,
unpaginated). Common names for this species include Carpintero cara
canela (Spanish) and pica-pau-de-cara-canela (Portuguese). It typically
forages in the mid-story of the tree canopy and has been observed
eating larvae, ants, berries, and small fruit (Bodrati, personal
observation). It prefers to nest in tree cavities of dead or decaying
trees, but has been observed in tree cavities of a live anchico tree
(Parapiptadenia rigida) and a live grapia tree (Apueleia leiocarpa).
Its habitat type consists of tropical and subtropical moist forests,
tropical dry forests, and mangrove forests at mostly low-to-medium
elevations less than 1,000 m (3,281 ft); however, altitude in the
Atlantic Forest region can reach as high as 2,000 m (6,562 ft) above
sea level.
This species exhibits an unusual behavior of sharing nest cavities
with other bird species. It was observed sharing a nest cavity with
white-eyed parakeets (Aratinga leucophthalma) in 2009 and with white-
throated woodcreepers (Xiphocolaptes albicollis) in 2010. However, in
one instance, there was conflict between two species, and the conflict
may have resulted in clutch failure of the helmeted woodpecker
(Lammertink et al. 2012, unpaginated).
Population
The helmeted woodpecker's population is believed to have declined
sharply between 1945 and 2000 in conjunction with the clearing of
mature forest habitat (Lammertink et al. 2012). Although forest
clearing has recently slowed, the population of this species is still
believed to be declining. Because the helmeted woodpecker is difficult
to locate except when vocalizing and it is silent most of the year, its
population size is difficult to determine. The most recent estimate of
its population is between 400 and 8,900 individuals and decreasing, but
experts believe its population is more likely closer to the smaller
estimate (Lammertink et al. 2012, unpaginated; Bodrati 2010,
unpaginated).
Range
This species is endemic to the southern Atlantic forest region of
southeastern Brazil, eastern Paraguay, and northeastern Argentina
(Lammertink et al. 2012, p. 1). Its estimated range is likely between
25,000 and 40,000 km\2\ (9,653 and 15,444 mi\2\), which is reduced from
a historical distribution of 661,330 km\2\ (255,341 mi\2\). The
Atlantic Forest extends along
[[Page 24615]]
the Atlantic coast of Brazil from Rio Grande do Norte in the north to
Rio Grande do Sul in the south, and inland as far as Paraguay and
Misiones Province of northeastern Argentina (Conservation International
2007a, p. 1; H[ouml]fling 2007, p. 1; Morellato and Haddad 2000, pp.
786-787). The Atlantic Forest extends up to 600 km (373 mi) west of the
Atlantic Ocean.
The territory or home range requirements for this species are
unclear, however, in 2010, two nests in Intervales State Park, Brazil,
were located 2.4 km (1.49 mi) apart from each other (Junior, pers.
comm. in Lammertink et al. 2012, unpaginated). The species is not
common anywhere it is known to exist (BLI 2010h). Lammertink et al.
2012 note that in old-growth sites this species may reach densities
estimated at one territory per 3 to 5 km\2\ (1.2 to 1.9 mi\2\) (Brooks
et al. 1993, Esquivel pers. comm., Bodrati pers. obs.).
In Paraguay, the species is known from the eastern half of the
country, in the departments of Amambay, San Pedro, Canindey[uacute],
Caaguaz[uacute], Alto Paran[aacute], Guair[aacute], Cazaap[aacute],
Itap[uacute]a, and Paraguar[iacute] (Lammertink et al. 2012,
unpaginated; Collar et al. 1992, Hayes 1995). In Argentina, it is only
known from Misiones province. In Brazil, it occurs in the states of
S[atilde]o Paulo, Paran[aacute], Santa Catarina, and Rio Grande do Sul.
It is found generally in mature montane forest along the Atlantic
coast from sea level up to elevations of 1,000 m (3,280 ft). The
species has been recorded in degraded and small forest patches;
however, it is usually found in or near large undisturbed forested
tracts (Cockle 2010; Chebez 1995b as cited in BLI 2010h; Clay in litt.
2000 as cited in BLI 2010h). This species is often absent from large
tracts of apparently suitable habitat (Collar et al. 1992). For
example, local ornithologists indicate that large portions of
Iguaz[uacute] National Park (550 km\2\ of mature forest), appear not to
be or are rarely used by this species (Castelino and Somay in litt. in
Lammertink 2010, unpaginated).
Factors Affecting the Species
There is little information available about this species, however,
species experts indicate that the factors affecting the species include
the reduction of nesting sites, loss of connectivity of suitable
habitat, and widespread deforestation (Kohler in litt 2010,
unpaginated; Cockle 2008 as cited in BLI 2010h). Its range is believed
to be reduced to 20 percent of its original habitat (Lammertink et al.
2012, unpaginated). Between 92 and 95 percent of the area historically
covered by tropical forests within the Atlantic Forest biome has been
converted or severely degraded as a result of various human activities
(Butler 2007, p. 2; Conservation International 2007a, p. 1;
H[ouml]fling 2007, p. 1; The Nature Conservancy (TNC) 2007, p. 1; World
Wildlife Fund (WWF) 2007, pp. 2-41; Saatchi et al. 2001, p. 868;
Morellato and Haddad 2000, p. 786; Myers et al. 2000, pp. 853-854). Of
this, less than one percent of the remaining forest in the range of the
helmeted woodpecker is original undisturbed habitat. Most of the forest
clearance in the Atlantic Forest occurred between 1945 and 2000
(Galindo-Leal and de Gusm[atilde]o C[acirc]mera 2003), and this was
likely the period during which the helmeted woodpecker's population
severely declined (Lammertink et al. 2012, unpaginated).
A significant portion of Atlantic Forest habitat has been, and
continues to be, lost and degraded by various ongoing human activities,
including logging, establishment and expansion of plantations and
livestock pastures, urban and industrial developments (including new
hydroelectric dams), slash-and-burn clearing, and both intentional and
accidental ignition of fires (Critical Ecosystem Partnership Fund
(CEPF) 2001, pp. 9-15). Even with the passage of a national forest
policy and in light of many legal protections in Brazil, the rate of
habitat loss throughout the Atlantic Forest biome has increased since
the mid-1990s (Rocha et al. 2005, p. 270; CEPF 2001, p. 10; Hodge et
al. 1997, p. 1). The remaining sites where the helmeted woodpecker
currently exists may be lost over the next several years (Rocha et al.
2005, p. 263). Furthermore, the helmeted woodpecker's population is
already highly fragmented, and its population is believed to be
declining parallel with habitat loss (BLI 2010h).
Information suggests that this species does not do as well in
secondary, although mature, forest than it does in primary, undisturbed
forested areas. There may be an ecological component that is missing
from the secondary forest; ecological interactions can be complex and
relationships may not always be obvious. When habitat is degraded,
there is often a lag time before the species losses are evident (Brooks
et al. 1999, p. 1140), so the helmeted woodpecker may still be present,
despite the low quality of its habitat. Further studies are needed to
clarify this species' distribution and status.
This species may not be as competitive as other species whose range
overlaps with the helmeted woodpecker. Other species, particularly more
aggressive woodpeckers, may compete for nest sites, or they may use
fragmented and ``edge'' habitat more effectively (Lammertink et al.
2012, unpaginated; BLI 2010h). The lack of nesting cavities is often a
limiting factor for bird species that depend on these cavities for
nesting (Sandoval and Barrantes 2009, p. 75; Kyle 2006, p. 8).
In Paraguay, some viable, although fragmented, habitat for this
species remains in San Rafael National Park (Esquivel et al. 2007, pp.
301-302). However, the park has undergone logging and clearance, and is
extremely isolated from other mature forested areas that might be
suitable for the helmeted woodpecker (Esquivel et al. 2007, p. 302).
Fragmentation of populations can decrease the fitness and reproductive
potential of the species, which exacerbates other threats.
Conservation Status
The helmeted woodpecker is listed as vulnerable by the IUCN (IUCN
2012). It is not listed in any appendices of CITES (CITES 2012). It is
protected by Brazilian law, and populations occur in numerous protected
areas throughout its range such as Intervales State Park in Brazil and
in San Rafael National Park in Paraguay (Esquivel et al. 2007, p. 301;
Lowen et al. 1996 as cited in BLI 2009; Chebez et al. 1998 as cited in
BLI 2009).
In the previous ANOR, the helmeted woodpecker received an LPN of 8.
After reevaluating the available information, we find that no change in
the LPN for the helmeted woodpecker is warranted. The helmeted
woodpecker does not represent a monotypic genus. The magnitude of
threat to the species is moderate because the species' range is fairly
large. The threats are imminent because the forest habitat upon which
the species depends is still being altered and degraded. We will
continue to monitor the status of this species, however, an LPN of 8
remains valid for this species.
Okinawa woodpecker (Dendrocopos noguchii syn. Sapheopipo noguchii), LPN
= 2
Taxonomy
Often there are differences in the taxonomic classification of
species. ITIS recognizes the Okinawa woodpecker, (also known as Pryer's
woodpecker) as belonging to the monotypic genus Sapheopipo (ITIS 2012,
accessed August 17, 2012). IUCN and BLI both recognize this species as
Dendrocopos noguchii. Japan references it as Sapheopipo noguchii
(www.env.go.jp/en/nature/biodiv/reddata.html,
[[Page 24616]]
accessed September 30, 2010). Winkler et al. (2005, pp. 103-109)
analyzed partial nucleotide sequences of mitochondrial genes and
concluded that this woodpecker belongs in the genus Dendrocopos which
consists of several species (not a monotypic genus). For the purpose of
this finding and absent peer-reviewed information to the contrary, we
recognize it as D. noguchii and will treat S. noguchii as a synonym.
Species and Habitat Description
This species of woodpecker prefers undisturbed, mature, subtropical
evergreen broadleaf forests, with tall trees greater than 20 cm (7.9
in) in diameter (del Hoyo 2002; Short 1982). Trees of this size are
generally more than 30 years old, and as of 1991 were confined to
hilltops (Brazil 1991). The species' main breeding areas are thought to
be located along the mountain ridges between Mt. Nishime-take and Mt.
Iyu-take, although it has been observed nesting in well-forested
coastal areas in the northern part of the island (Research Center, Wild
Bird Society of Japan 1993, as cited in BLI 2001). The majority of the
broadleaf trees in the Yanbaru area are oak and chinquapin (Distylium
racemosum and Schefflera octophylla) (Ito et al. 2000, p. 305). Areas
with conifers (Coniferae, cone-bearing trees such as pines and firs)
appear to be avoided (Winkler et al. 1995; Short 1973). The Okinawa
woodpecker was also observed just south of the Mt. Tano-dake in an area
of entirely secondary forest that was too immature for use by
woodpeckers to excavate nest cavities, but these may have been birds
displaced by the clearing of mature forests (Brazil 1991).
The Okinawa woodpecker feeds on large arthropods, notably beetle
larvae, spiders, moths, and centipedes, as well as fruit, berries,
seeds, acorns, and other nuts (Winkler et al. 2005; del Hoyo 2002;
Short 1982). It forages in old-growth forests with large, often
moribund trees, accumulated fallen trees, rotting stumps, debris, and
undergrowth (Brazil 1991; Short 1973). This species has been observed
nesting in holes excavated in large, old growth trees such as
Castanopsis cuspidate (Japanese chinquapin) and Machilus thunbergii
(Tabu-no-ki tree) (del Hoyo 2002; Short 1982; Ogasawara and Ikehara
1977). Both of these tree species grow to approximately 20 meters (66
ft) in height. It is thought that Castanopsis is the preferred tree
species for nesting because it tends to be hollow with hard wood, so
that the nesting cavities are more secure (Kiyosu 1965 in BLI 2001, p.
1,880). The number of fledglings per season range between one and three
birds (BLI 2001, p. 1,880).
Range
The Okinawa woodpecker is endemic to Okinawa Island, Japan. Okinawa
is the largest of the Ryukyu Islands, a small island chain located
between Japan and Taiwan (Winkler et al. 2005; Stattersfield et al.
1998; Brazil 1991). Okinawa is approximately 646 km (401 mi) from
Taiwan and 1,539 km (956 mi) from Tokyo, Japan. The island is 108 km
(67 miles) in length and its width varies between 3 and 27 km (2 to 17
mi). Okinawa's highest point is Mt. Yonaha at 455 m (1,494 ft). The
Okinawa woodpecker is confined to forested areas in the northern part
of the island, generally in the Yambaru (also known as Yanbaru) area,
particularly in the Yonaha-dake Prefecture Protection Area. Yambaru
refers to the mountainous areas of Kunigami County in northern Okinawa.
Population
This species is considered one of the world's most rare extant
woodpecker species (Winkler et al. 2005). Many observations of this
species have recently been made at the Jungle Warfare Training Center,
part of the United States Marine Corps (USMC) installation on Okinawa
Island (USMC in litt. 2012). During the 1930s, the Okinawa woodpecker
was considered nearly extinct. In the early 1970s, it was observed to
be scattered among small colonies and isolated pairs (Short 1973). By
the early 1990s, the breeding population was estimated to be about 75
birds (BLI 2008a). In 2008, its projected 10-year decline was between
30 to 49 percent (BLI 2008b). The current population estimate is
between 100 and 390 mature individuals (BLI 2012).
Factors Affecting the Species
Deforestation and the fragmented nature of its habitat due to
logging, dam construction, road-building, agricultural development, and
golf course construction have been cited to be the main causes of its
reduced habitat and decreased population (BLI 2010i). Between 1979 and
1991, 2,443 ha (6,037 ac) of forest were destroyed in the Yanbaru area
(Department of Agriculture, Okinawa Prefectural Government 1992, in Ito
et al. 2000, p. 311). As of 2001, there was only 40 km\2\ (15 mi\2\) of
suitable habitat available for this species (BLI 2001, p. 1882). Most
of the habitat loss appears to have ceased; however, it still suffers
from limited suitable habitat and a small population size (BLI 2012).
The limited range and tiny population make this species vulnerable
to extinction from disease and natural disasters such as typhoons (BLI
2012, p. 54). In addition, the species may be vulnerable to predators
due to its tendencies to forage close to the ground. Feral dogs and
cats, the introduced Javan mongoose (Herpestes javanicus), and weasel
(Mustela itatsi) are likely predators of the woodpecker (BLI 2012).
Conservation Status
Various protections and conservation measures are in place for this
species. The species is categorized on the IUCN Red List as critically
endangered because it consists of a small, declining population
estimated to be between 100 and 390 mature individuals (BLI 2012). The
species is legally protected in Japan, and it occurs in small protected
areas in Yambaru (BLI 2012). The Yambaru forested area in the Okinawa
Prefecture, was designated as a national park in 1996 (BLI 2010i). The
species is also listed in the USMC's 2009 Integrated Natural Resources
Management Plan in compliance with the Japan Environmental Governing
Standards, to be used by Department of Defense installations in Japan
(USMC 2012). Additionally, conservation organizations have purchased
sites where the woodpecker occurred in order to establish private
wildlife preserves (del Hoyo et al. 2002; BLI 2008). It is not listed
in any appendices of CITES.
In the previous ANOR, the Okinawa woodpecker received an LPN of 2.
After reevaluating the available information, we find that no change in
the LPN for the Okinawa woodpecker is warranted. The Okinawa woodpecker
does not represent a monotypic genus. It is considered one of the
world's most rare extant woodpecker species. The best available
information indicates that this species is being actively monitored.
However, the threats to the species are of high magnitude due to the
scarcity of old-growth habitat (only 40 km\2\ (15 mi\2\)) upon which
the species is dependent. Its very small population is believed to
still be declining, and species with fragmented habitat in combination
with small population sizes may be at greater risk of extinction due to
synergistic effects (Davies et al. 2004, pp. 265-271). Although it
exists in areas with protected status, the best available information
indicates that the threats to the species continue to be ongoing and
imminent. Because the species faces threats that are high in magnitude
due to its restricted population size, past habitat loss, endemism, and
because the current
[[Page 24617]]
population estimate ranges between 100 and 390 mature individuals, the
LPN for this species remains a 2 to reflect imminent threats of high
magnitude.
Yellow-browed toucanet (Aulacorhynchus huallagae), LPN = 2
Species and Habitat Description
There is very little information available regarding the yellow-
browed toucanet. This species is endemic to Peru and is known from only
two locations in north-central Peru--La Libertad, where it is described
as uncommon, and Rio Abiseo National Park, San Martin, where it is
thought to be very rare (BLI 2012b; del Hoyo et al. 2002; Wege and Long
1995). There was also a report of yellow-browed toucanets observed in
the Leymebamba area (Mark in litt. 2003, as cited in BLI 2010j) of
Peru, although there are no available photos of this species to verify
this information.
Distinguishing features of the yellow-browed toucanet include a
bright yellow vent or cloaca, a blackish bill, and a generally green
face, (Schulenberg and Parker 1997, p. 719). Its call has been
described as a series of 20 to 30 frog-like ``krik'' notes, delivered
at a rate of slightly more than one note per second (recordings housed
in Cornell Laboratory of Ornithology, Schulenberg and Parker 1997, p.
717).
Population and Range
The current population size is believed to be 600-1,500 mature
individuals, with a decreasing population trend (BLI 2012, p. 1).
The yellow-browed toucanet's estimated range is 450 km\2\ (174
mi\2\) (BLI 2012). The species inhabits a narrow altitudinal range
between 2,125 and 2,510 m (6,970 and 8,232 ft). It prefers a canopy of
humid, epiphyte-laden montane cloud forests, particularly areas that
support Clusia trees (known as autograph trees) (del Hoyo et al. 2002;
Schulenberg and Parker 1997, pp. 717-718; Fjelds[aring] and Krabbe
1990). Within the Clusia genus, there are about 20 species.
The yellow-browed toucanet does not appear to occupy all
potentially suitable forest available within its range (Schulenberg and
Parker 1997). The narrow distributional band in which yellow-browed
toucanets are found may be related to the occurrence of other avian
species that may outcompete the yellow-browed toucanet. Both of the
suggested competitors have wider altitudinal ranges that completely
encompass the range of the yellow-browed toucanet (del Hoyo et al.
2002; Clements and Shany 2001, as cited in BLI 2008; Hornbuckle in
litt. 1999, as cited in BLI 2009; Collar et al. 1992). The larger grey-
breasted mountain toucan (Andigena hypoglauca) occurs above 2,300 m
(7,544 ft), and the emerald toucanet (Aulacorhynchus prasinus) occurs
below 2,100 m (6,888 ft) (Schulenberg and Parker 1997). The yellow-
browed toucanet may occur to the north and south of its known range,
but the area between the Cordillera de Col[aacute]n, Amazonas, and the
Carpish region, Hu[aacute]nuco, is inaccessible for surveying, and its
existence in other areas has not been confirmed.
Factors Affecting the Species
Deforestation, mining, and secondary impacts associated with those
activities such as habitat degradation, erosion, and contamination from
mining waste affect this species' habitat. Deforestation within its
range has been widespread, but has largely occurred at lower elevations
than habitat occupied by the yellow-browed toucanet (Barnes et al.
1995; BLI 2009). However, coca growers have taken over forests within
its altitudinal range, probably resulting in some reductions in this
species' range and population (BLI 2012; Plenge in litt. 1993, as cited
in BLI 2009). Most of the area in 1997 was described as being only
lightly settled by humans (Schulenberg and Parker 1997). However, the
human population surrounding the Rio Abiseo Park was steadily
increasing during the 15 years prior to 2002, primarily due to the
advent of mining operations in the area (Obenson 2002). Pressures in
and around the park exist due to mining and those secondary impacts
associated with mining (Vehkam[auml]ki and B[auml]ckman 2006, pp. 1-2).
Conservation Status
The yellow-browed toucanet is listed as endangered on the IUCN Red
List due to its very small range and population records from only two
locations (BLI 2012). It occurs in at least one protected area, the Rio
Abiseo National Park, a World Heritage Site which was established to
protect fauna (UNEP-WCMC 2008, p. 1). It is not listed in any
appendices of CITES (CITES 2012). No other protections are known, but
see Pauxi unicornis for a discussion of applicable laws in Peru.
In the previous ANOR, the yellow-browed toucanet received an LPN of
2. After reevaluating the available information, we find that no change
in the LPN for the yellow-browed toucanet is warranted. The yellow-
browed toucanet does not represent a monotypic genus. As of 2010, BLI
reported that coca-growers have taken over forest within its
altitudinal range (BLI 2010j). The magnitude of threats to the species
is high given that the species has a very small range and declining
population and may be in competition for habitat with more competitive
avian species. Additionally, the only records of this species are from
two small locations, and they have not been verified in several years.
Thus, the LPN for this species remains a 2 to reflect imminent threats
of high magnitude.
Brasilia tapaculo (Scytalopus novacapitalis), LPN = 11
Taxonomy
Within the Scytalopus genus, there are several species (Raposo and
Kirwan 2008, p. 80). The Brasilia tapaculo is a common name that could
refer to several species within the Scytalopus genus (Raposo et al.
2006, p. 37). S. novacapitalis is described as occupying the
northwestern part of the overall range (from Bras[iacute]lia south to
western Minas Gerais--the central to southern-central region of the
country); S. pachecoi is described as occupying Rio Grande do Sul,
Santa Catarina, and northeastern Argentina; S. diamantinensis is
described as occupying the northernmost part of Brazil; and two
species: S. speluncae and Scytalopus sp. nov. (possibly S.
novacapitalis but the taxonomy is unclear) occupy the central area of
the overall range (Raposo and Kirwan 2008, p. 80; Raposo et al. 2006,
p. 51). Both BLI and ITIS recognize the Brasilia tapaculo as Scytalopus
novacapitalis (BLI 2012; ITIS 2012, Accessed August 10, 2012). For the
purpose of this document, we will refer to S. novacapitalis as the
Brasilia tapaculo.
Species and Habitat Description
The Brasilia tapaculo is a small bird endemic to Brazil. The
Brasilia tapaculo occupies the central to southern-central region of
the country (Brazilian Institute of Environment and Renewable Natural
Resources (IBAMA) 2012; BLI 2012). The Brasilia tapaculo is found in
swampy ``gallery'' forests. These forests surround streams and rivers
in regions otherwise devoid of trees, within disturbed areas of thick
streamside vegetation and dense secondary growth of Pteridium aquilinum
(bracken fern). The Brasilia tapaculo is strongly associated with two
plant species: Blechnum ferns and Euterpe palms (del Hoyo et al. 2003,
in BLI 2010k).
This species, S. novacapitalis, is notably different from its
congeners in two ways. It is light grey with brown fringed feathers on
the rump and flanks
[[Page 24618]]
and is morphologically almost identical to S. speluncae (Raposo et al.
2006, p. 52). Additionally, the song of S. novacapitalis consists on
average of 1.1 notes per second, which is considerably fewer than
either S. notorius or S. speluncae, whereas the duration of each note
lasts an average 0.1 seconds, as opposed to either S. speluncae or S.
notorius, which never exceeded 0.05 seconds in any sample analyzed
(Raposo et al. 2006, p. 52).
Range
The species has been documented in the state of Goi[aacute]s and in
the state of Minas Gerais, specifically in Serra da Canastra National
Park (BLI 2012; Honkala and Niiranen 2010, p. 124; BLI 2008; Scaramuzza
et. al. 2005, p. 49; Silveira 1998, p. 55; Negret and Cavalcanti 1985,
as cited in Collar et al. 1992). The species occupies forested areas
within a range of approximately 109,000 km\2\ (42,085 mi\2\) but is
still likely losing habitat (BLI 2010j; Scaramuzza et. al. 2005, p.
49). Its distribution now may be larger than believed when we were
initially petitioned to list this species in the 1980s. In Serra do
Cip[oacute] and Cara[ccedil]a, which are in the hills and plateaus of
central Brazil, this species was located at low densities (Collar et
al. 1992). In and around the Serra da Canastra National Park, this
species has in the past been reported to be very common (Honkala and
Niiranen 2010, p. 124; Silveira 1998, p. 3). In the Minas Gerais area,
the species was located at low densities at Serra Negra (on the upper
Dourados River) and the headwaters of the S[atilde]o Francisco river in
the early 1990s (Collar et al. 1992).
Population
There is no current population estimate other than that the
population is decreasing in connection with habitat loss and
degradation (BLI 2012).
Factors Affecting the Species
The swampy forests where it is found are not as conducive to forest
clearing as other areas, leaving the species' habitat less vulnerable
to habitat loss and degradation than previously thought. The majority
of locations where this species is found are likely within established
protected nature reserves such as Serra da Canastra. Both fire risk and
drainage impacts are reduced in these areas (Antas in litt. 2007).
However, dam building for irrigation on rivers that normally flood
gallery forests may still impact this species (Antas in litt. 2007;
Teixeira in litt. 1987, as cited in Collar et al. 1992). Its population
has likely decreased in connection with habitat loss.
Conservation Status
The IUCN categorizes the Brasilia tapaculo as ``Near Threatened''
(BLI 2012). It is not listed in any appendices of CITES (CITES 2010).
This species was listed in Brazil's Official List of Species of
Brazilian Fauna Threatened with Extinction in 1989 under Ordinance No.
1522 of 19 December 1989, Law No. 7.735 of 1989 (IBAMA 1989, p. 6).
However, the Brasilia tapaculo is no longer listed on Brazil's List of
Species of Brazilian Fauna Threatened with Extinction (IBAMA 2003). In
2005, a team reviewed priority areas for biodiversity conservation in
Goi[aacute]s State, and the Brasilia tapaculo was considered to have a
lower level of vulnerability than many other species in the state
(Scaramuzza et. al. 2005, pp. 48-49).
Some of the areas where this species occurs are protected. Three
Important Bird Areas (IBAs) have been identified as important for this
species: Parque Nacional de Bras[iacute]lia, Cerrados ao Sul de
Bras[iacute]lia, and the Serra da Canastra National Park. IBAs are a
way to identify conservation priorities (BLI 2012). A site is
recognized as an IBA when it meets criteria ``* * *based on the
occurrence of key bird species that are vulnerable to global extinction
or whose populations are otherwise irreplaceable.'' Criteria for sites
for conservation are those that are small enough to be conserved in
their entirety, but large enough to support self-sustaining populations
of the key bird species.
In the previous ANOR, the Brasilia tapaculo received an LPN of 8.
After reevaluating the available information, we find that a change in
the LPN for the Brasilia tapaculo is warranted. The Brasilia tapaculo
does not represent a monotypic genus. The magnitude of threat to the
species is moderate to low because at least two of the populations are
in protected habitat which ameliorate some factors affecting the
species; and its preferred habitat is swampy and difficult to clear.
Threats are nonimminent, because it is found in a number of habitats
and is reported as being common in some protected areas. Because the
species has such a wide range and its distribution is likely larger
than believed when we were initially petitioned to list this species in
the 1980s, we find that, an LPN of 11 is appropriate for this species,
and we will continue to monitor its status.
Codfish Island fernbird (Bowdleria punctata wilsoni), LPN = 12
Taxonomy
There are five subspecies of Bowdleria punctata, each restricted to
a single island in New Zealand and its outlying islets. The North
Island subspecies (M. p. vealeae) and South Island subspecies (M. p.
punctatus) are described as widespread and locally common. The Stewart
Island (M. p. stewartianus) and the Snares (M. p. caudatus) subspecies
are described as being moderately abundant (Heather and Robertson
1997). IUCN and BLI only recognize the species Bowdleria punctata; it
is not addressed at subspecies level. Neither the species nor the
subspecies is addressed by ITIS (www.itis.gov, accessed June 8, 2012).
However, the New Zealand Department of Conservation (NZDOC) recognizes
the Codfish Island fernbird as a valid subspecies. Because New Zealand
recognizes the subspecies, and absent peer-reviewed information to the
contrary, we currently consider Bowdleria punctata wilsoni to be a
valid subspecies within a multispecies genus.
Species Description
There is little information available about this species. The
Codfish Island fernbird is found only on Codfish Island, New Zealand.
Codfish Island is a nature reserve of 1,396 ha (3,448 ac) located 3 km
(1.8 mi) off the northwest coast of Stewart Island (McClelland 2007).
McClelland (2007) indicated that, in the past, the Codfish Island
fernbird was restricted to low shrubland in the higher areas of Codfish
Island. Fernbirds are sedentary and are not strong fliers. They are
secretive and reluctant to leave cover and feed in low vegetation or on
the ground, eating mainly caterpillars, spiders, grubs, beetles, flies,
and moths (Heather and Robertson 1997).
Population
Although there is no current estimate of the size of the Codfish
Island fernbird population (estimates are based on incidental encounter
rates in the various habitat types on the island), the population as of
2007 was believed to be several hundred. In 1966, the status of the
Codfish Island subspecies (B. punctata wilsoni) was considered
relatively safe (Blackburn 1967), but estimates dating from 1975
indicated a gradually declining population to approximately 100
individuals (Bell 1975 as cited in IUCN 1979). While there are no
accurate data on the population size or trends on Putauhinu, as of
2007, the numbers were estimated to be between 200 and 300 birds spread
[[Page 24619]]
over the island (McClelland 2007). McClelland believes that the
population has likely stabilized (2007).
Factors Affecting the Species
Codfish Island's native vegetation has been modified by the
Australian brush-tailed possum (Trichosurus vulpecula), which was
introduced to the Island. Codfish Island fernbird populations were also
reduced due to predation by weka and Polynesian rats (McClelland 2007;
McClelland 2002, pp. 1-9; Merton 1974, pers. comm., as cited in IUCN
1979). The Codfish Island fernbird population was reported to have
rebounded strongly with the removal of predator species in the 1980s
and 1990s (McClelland 2007). Additionally, it successfully recolonized
forest habitat, which greatly expanded its range. However, because
there is always the chance that rats could reestablish a population on
the island; the island is being monitored for rats. To safeguard the
Codfish Island fernbird, the NZ DOC established a second population on
Putauhinu Island, a small 144-ha (356-ac), privately owned island
located approximately 40 km (25 mi) south of Codfish Island. The
Putauhinu population established rapidly, and McClelland (2007)
reported that it is believed to be stable. Even with a second
population on Putauhinu Island, the Codfish Island fernbird still
remains vulnerable to naturally occurring storm events due to its
restricted range, predation, and small population size.
Conservation Status
The Codfish Island fernbird has varying levels of conservation
status. At the species level, IUCN categorizes Bowdleria punctata as
least concern (BLI 2010k); however, neither the IUCN nor BLI addresses
the subspecies individually. The 2008 New Zealand Threat Classification
System manual indicates that the two ``at risk'' categories: ``range
restricted'' and ``sparse'' have been replaced by a single category
called ``naturally uncommon'' (p. 10). The NZDOC categorizes this
subspecies as ``naturally uncommon.'' It is not listed in any
appendices of CITES (CITES 2010).
In the previous ANOR, the Codfish Island fernbird received an LPN
of 12. After reevaluating the available information, we find that no
change in the LPN for this subspecies is warranted. The information
available indicates that the subspecies faces threats that are low to
moderate in magnitude because: (1) It exists on an island that is a
nature reserve, and (2) the removal of predators and the establishment
of a second population have allowed for a rebound in the subspecies'
population. Although the actual population numbers for this subspecies
are unknown (possibly around 500 individuals), threats are nonimminent
because the conservation measures have been successful. Therefore, an
LPN of 12 remains valid for this subspecies. However, we will continue
to monitor the status of this subspecies.
Ghizo white-eye (Zosterops luteirostris), LPN = 2
Species and Habitat Description
There is little information available about this species and its
habitat (Filardi 2012, pers. comm.). Its range is estimated to be less
than 35 km\2\ (13.5 mi\2\), of which less than 1 km\2\ (0.39 mi\2\) is
old growth forest. The Ghizo white-eye (also known as the splendid
white-eye) is described as ``warbler-like.'' Its physical
characteristics include silvery-white eye rings with dark olive upper
parts and its underparts are bright yellow (BLI 2012). The species has
a black beak and orange-yellow legs (BLI 2012). The Ghizo white-eye is
endemic to the small island of Ghizo, which is 11 km long and 5 km wide
(7 by 3 mi). Ghizo is a densely populated island in the Solomon Islands
in the South Pacific Ocean, east of Papua New Guinea (BLI 2010m). As of
2005, the human population on the island was estimated to be
approximately 6,670 (www.adb.org, accessed September 9, 2010).
Population
A very rough population estimate for this species is between 250
and 1,000 mature individuals (BLI 2012). However, it is based on (1)
population density estimates for close relatives with a similar body
size, and (2) the fact that only a portion of its estimated extent of
occurrence is likely to be occupied (BLI 2012). In the 1990s, this
species was characterized as being locally common in the remaining tall
or old-growth forest, which is very fragmented and is now believed to
be less than 1 km\2\ (0.39 mi\2\). It is unclear whether the remaining
habitat can support sustainable breeding populations (Filardi pers.
comm. 2012, Buckingham et al. 1995, as cited in BLI 2008). Biologists
familiar with this species recommend that systematic surveys be
conducted for this species to verify its status in the wild and to
evaluate the condition of its habitat and its population. Although
there are no data on population trends, the species is very likely
declining due to habitat loss and degradation (Filardi pers. comm.
2012, BLI 2012).
Factors Affecting the Species
This species' small population is likely declining due to habitat
loss. Areas around Ghizo Town, which previously supported the species,
have been further degraded since the town was devastated by a tsunami,
and habitat was found less likely able to support the species in 2012
(Filardi in litt. 2012). The tsunami in 2007 contributed to the loss of
habitat to the point where the area around Ghizo town, which once
contained the species, has been deemed unable to support the species
(Filardi in litt. 2012 in BLI 2012). Extreme weather events are likely
to affect this species; however, little information is available.
The species is also affected through conversion of forested areas
to agricultural uses (BLI 2008). The very tall old-growth forest on
Ghizo is still under pressure from clearance for local use as timber,
firewood, and gardens, as are the areas of secondary growth, which are
already suboptimal habitats for this species. Its very small population
is believed to still be declining; and species with fragmented habitat
in combination with small population sizes may be at greater risk of
extinction due to synergistic effects (Davies et al. 2004, pp. 265-
271).
Conservation Status
Few, if any, protections are in place for this species. The IUCN
Red List classifies this species as endangered because of its very
small population that is considered to be declining due to habitat loss
(Filardi 2012, pers. comm., BLI 2012). It is not listed in any
appendices of CITES (CITES 2012).
In the previous ANOR, the Ghizo white-eye received an LPN of 2.
After reevaluating the available information, we find that no change in
the LPN for this species is warranted. The Ghizo white-eye does not
represent a monotypic genus. It faces threats that are high in
magnitude due to declining suitable habitat and its small, declining
population size. The best available information indicates that forest
clearing is occurring at a pace that is rapidly denuding the habitat;
secondary growth is being converted to agricultural purposes. Further,
the human population on the small island is likely contributing to the
reduction in old-growth forest for local uses such as gardens and
timber. The estimate of the Ghizo white-eye population is believed to
be between 250 and 1,000 individuals, and its population trend is
believed to be declining. These threats
[[Page 24620]]
to the species are ongoing, of high magnitude, and imminent. Thus,
based on the best available scientific and commercial information, the
LPN remains a 2 for this species.
Black-backed tanager (Tangara peruviana), LPN = 8
Species and Habitat Description
This species' physical characteristics include an underbody color
of blue-turquoise and a pale red-brown vent or cloaca. The male has a
chestnut-colored head and black back. The female is duller and greener.
It has a complex distribution with seasonal fluctuations in response to
the ripening of Schinus fruit, at least in Rio de Janeiro and
S[atilde]o Paulo (BLI 2010n). It has been observed visiting gardens and
orchards of houses close to forested areas. Its diet consists primarily
of fruit and to a smaller extent, insects (Moraes and Krul 1997).
The black-backed tanager is endemic to the coastal Atlantic forest
region of southeastern Brazil. The species has been documented in Rio
de Janeiro, S[atilde]o Paulo, Parana, Santa Catarina, Rio Grande do
Sul, and Espirito Santo (BLI 2010n; Argel-de-Oliveira in litt. 2000, as
cited in BLI 2008). The species is generally restricted to Restinga
habitat, which is a Brazilian term that refers to sandy forest habitat
consisting of a patchwork of vegetation types, such as beach
vegetation; open shrubby vegetation; herbaceous, shrubby coastal sand
dune habitat; and both dry and swamp forests distributed over coastal
plains (McGinley 2007, pp. 1-2; Rocha et al. 2005, p. 263). This
habitat type is specific to the local nutrient-poor, sandy, acidic
soils of the Atlantic Forest. In addition to being found in undisturbed
habitat, the black-backed tanager has also been observed in secondary
forests (BLI 2008).
The Atlantic Forest extends up to 600 km (373 mi) west of the
Atlantic Ocean. It consists of tropical and subtropical moist forests,
tropical dry forests, and mangrove forests at mostly low-to-medium
elevations less than 1,000 m (3,281 ft); however, altitude can reach as
high as 2,000 m (6,562 ft) above sea level.
Population
Within suitable habitat, the black-backed tanager is generally not
considered rare (BLI 2010n). The population estimate is between 2,500
to 10,000 individuals (BLI 2012). This species is more common in
S[atilde]o Paulo during the winter, and records from Espirito Santo are
only available from the winter season. Additional knowledge of the
species' seasonal movements would provide an improved understanding of
the species' population status and distribution, but populations
currently appear small and fragmented and are believed to be declining,
likely in response to extensive habitat loss (BLI 2012).
Factors Affecting the Species
The primary factor affecting this species is the rapid and
widespread loss of habitat. As of 2000, between 7 and 10 percent of its
habitat remained intact (Morellato and Haddad 2000, p. 786; Oliveira-
Filho and Fontes 2000, p. 794). Based on a number of estimates, 92 to
95 percent of the area historically covered by tropical forests within
the Atlantic Forest biome has been converted or severely degraded as a
result of various human activities (Butler 2007, p. 2; Conservation
International 2007a, p. 1; H[ouml]fling 2007, p. 1; TNC 2007, p. 1; WWF
2007, pp. 2-41; Saatchi et al. 2001, p. 868; Morellato and Haddad 2000,
p. 786; Myers et al. 2000, pp. 853-854). In addition to the overall
loss and degradation of its habitat, the remaining tracts of its
habitat are severely fragmented.
Its remaining suitable habitat in the areas of Rio de Janeiro and
S[atilde]o Paulo are affected by ongoing development of coastal areas,
primarily for tourism enterprises (e.g., large hotel complexes,
beachside housing) and associated infrastructure support (BLI 2012; WWF
2007, pp. 7 and 36-37; del Hoyo 2003, p. 616). These activities have
drastically reduced the species' abundance and extent of its occupied
range. These activities affect the species' continued existence because
populations are being limited to highly fragmented patches of habitat
(BLI 2012). This species seems to tolerate some environmental
degradation if there are well-preserved stretches in its territory in
which the birds can seek shelter; however, we expect habitat loss and
degradation will likely increase in the future.
Because this species inhabits coastal areas, sea level rise may
also affect this species (Alfredini et al. 2008, pp. 377-379). In
Santos Bay on the coast, sea level rise scenarios were investigated
based on predictions of sea level increases between 0.5 and 1.5 m (1.6
and 4.9 ft) by the year 2100 (Alfredini et al. 2008, pp. 378). Even
small increases in sea level may cause flooding and erosion and could
change salt marsh zones within this species' habitat (Alfredini et al.
2008, pp. 377-379). As sea level rises, less habitat will be available
for this species. Habitat loss due to sea level rise may be compounded
by an increased demand by humans to use land for housing and
infrastructure. The black-backed tanager would likely attempt to move
inland in search of new suitable habitat as its current habitat
disappears. However, there may not be enough suitable habitat remaining
for the species. Although Brazil has several laws implementing
protection for species such as the black-backed tanager and small
portions of this species' range occur in six protected areas, none of
the protected areas are supported by effective protection according to
BLI (2012). Its habitat is under pressure from the intense development
that occurs in coastal areas, particularly south of Rio de Janeiro.
These factors affecting the black-backed tanager's remaining habitat
are ongoing due to the challenges that Brazil faces to balance its
competing development and environmental priorities.
Conservation Status
The species is classified as vulnerable by the IUCN (BLI 2012). The
black-backed tanager is not listed in any appendices of CITES (CITES
2010). Portions of the tanager's range are in six protected areas,
although protections are not always effective (BLI 2012). This species
is protected under the National Environmental Policy Act (Law 6.938 of
1981), implemented by the Brazilian Institute of the Environment and
Natural Resources (Instituto Brasileiro do a Meio Ambiente de do
Recursos Naturais Renov[aacute]veis (IBAMA). The basis of environmental
law and policy in Brazil is Article 225 of its Constitution (Pereira
Neto et al. 2011, p. 63).
In the previous ANOR, the black-backed tanager received an LPN of
8. After reevaluating the available information, we find that no change
in the LPN for this species is warranted at this time. The black-backed
tanager does not represent a monotypic genus. Despite laws in place,
its habitat continues to diminish. We find that threats (primarily
habitat loss) to the species are moderate in magnitude due to the
species' fairly large range, existence in protected areas, and apparent
flexibility in diet and habitat suitability. Threats are imminent
because the species is at risk due to ongoing and widespread loss of
habitat due to beachfront and related development. Therefore, an LPN of
8 remains valid for this species.
[[Page 24621]]
Lord Howe Island pied currawong (Strepera graculina crissalis), LPN = 6
Taxonomy
The Lord Howe Island pied currawong is a subspecies distinct from
the five mainland pied currawongs (Strepera graculina spp.). In 2004,
it was suggested that its taxonomy be reviewed to determine if it
warrants recognition as a distinct species (McAllan et al. 2004). ITIS
recognizes only S. graculina (ITIS 2012, accessed August 21, 2012)
rather than the subspecies. The subspecies is not specifically
addressed by BLI or IUCN. Because Australia recognizes the subspecies,
and absent peer-reviewed information to the contrary, we consider S.
graculina crissalis to be a valid subspecies within a multispecies
genus.
Species Range and Habitat Description
This subspecies is endemic to Lord Howe Island, New South Wales,
Australia. Lord Howe Island is 600 km (373 mi) northeast of Sydney,
Australia. This is also the distance to the subspecies' closest
relative, the mainland pied currawong (S. graculina). The Lord Howe
pied currawong is limited to an 18-km\2\ (6.95 mi\2\) area on the 20-
km\2\ (7.7-mi\2\) island (Government of Australia 2012, p. 3). It has
been recorded to a limited extent on small nearby islets of the
Admiralty group (New South Wales Department of Environment & Climate
Change (NSW DECC) 2010; Garnett and Crowley 2000). Lord Howe Island is
unique among inhabited Pacific Islands in that less than 15 percent of
the island has been cleared (Wilkinson and Priddel 2011, p. 508) and
less than 24 percent has been disturbed (NSW Department of Environment
and Conservation (DEC) 2007a).
The Lord Howe pied currawong breeds in rainforests and palm
forests, particularly along streams. Its territories include sections
of streams or gullies that are lined by tall timber (Garnett and
Crowley 2000). The highest densities of Lord Howe pied currawong nests
have been located on the slopes of Mount Gower and in the Erskine
Valley, with smaller numbers on the lower land to the north (Knight
1987, as cited in Garnett and Crowley 2000). The nests are typically
situated high in trees and are made in a cup shape with sticks and
lined with grass and palm thatch (NSW DECC 2005). As of 2001, most of
Lord Howe Island was still forested.
The Lord Howe pied currawong is omnivorous and eats a wide variety
of food, including native fruits and seeds (Hutton 1991, Auld et al.
2009). It is the only remaining native island vertebrate predator (NSW
DECC 2010). It has been recorded eating seabird chicks, poultry, and
chicks of the Lord Howe woodhen (Tricholimnas sylvestris) and white
tern (Gygis alba). It also feeds on both live and dead rats (Hutton
1991). Food brought to Lord Howe pied currawong nestlings by its
parents was observed to be, in decreasing order of frequency:
invertebrates, fruits, reptiles, and nestlings of other bird species
(Lord Howe Island Board (LHIB) 2006).
Population
In the 2000 Action Plan for Australian Birds (Garnett and Crowley
2000), the Lord Howe pied currawong population was estimated to be
approximately 80 mature individuals. In 2007, the Foundation for
National Parks & Wildlife (FNPW 2007) estimated that the breeding
population of the Lord Howe pied currawong was between 80 and 100
pairs, with a nesting territory in the tall forest areas of about 5 ha
(12 ac) per pair (Carlile 2007, pers. comm. in Government of Australia
2012, p. 3). The most recent population estimate was between 100 and
200 individuals (from surveys in 2005-2006) (NSW DECC 2010, p. 3). It
was recently described as being widespread on the island and occurring
in urban areas (Government of Australia 2012, p. 3); however, a precise
estimate of the population is unavailable.
Factors Affecting the Species
The small population size makes this species highly vulnerable to
factors that can be detrimental to its survival. Its population size is
limited by the amount of available habitat and the lack of food during
the winter (FNPW 2007). Two potential threats have been identified: the
introduction of exotic predators and the persecution of the Pied
Currawong (Lord Howe Island) by humans in retaliation to attacks on
domestic and endemic birds (Garnett & Crowley 2000; Hutton 1991). On
Lord Howe Island, ten bird species have become extinct due to hunting,
introduced predators, and competitors (Government of Australia 2012b,
p. 633). The Lord Howe pied currawong remains unpopular with some
residents, likely because of its predatory nature on nestlings. The
incidence of shooting has declined since the 1970s, when conservation
efforts on Lord Howe Island began (Hutton 1991), but occasional
shootings occurred as of 2007 (Carlile 2007, pers. comm.). It is
unclear what effect this localized killing has on the overall
population size and distribution of the species (Garnett and Crowley
2000).
The Lord Howe Island Pied Currawong has persisted in reasonable
numbers despite the introduction of the black rat (Rattus rattus) in
1918 (Fullagar & Disney 1975; McAllan et al. 2004). However, it may
benefit from previous rat eradication programs and a rat eradication
program that is currently underway (The Daily Telegraph, July 20, 2012;
Carlile 2007, pers. comm.). The removal of feral animals has resulted
in the recovery of some forest understory (WWF 2001).
Other factors affecting the species include nontarget poisoning,
and effects associated with extremely small population sizes (NSW DECC
2010). Because the Lord Howe pied currawong often preys on rats, it may
be subject to nontarget poisoning during rat-baiting programs
(Wilkinson and Priddel 2011, p. 509; DEC 2007b). The Pied Currawong may
actually have benefited from the introduction of some exotic plants and
animals that are now used as a food source (Garnett & Crowley 2000;
McFarland 1994; Mills undated; Cooper 1990; Hutton 1991).
Habitat loss and degradation continue to occur. All the forest
areas adjacent to clearings continue to suffer from progressive dieback
(Sinclair 2002, p. 6). Sinclair notes that the Permanent Park Preserve
and Transit Hill are degrading at the edges where rainforest trees
(which need to be buffered) are exposed to strong winds. Close
monitoring of the population is needed because this small, endemic
population is highly susceptible to the factors identified above as
well as catastrophic events such as disease or introduction of a new
predator (Government of Australia 2012b, p. 633).
Conservation Status
Various levels of conservation and protections exist for this
subspecies. At the species level, it is considered least concern by the
IUCN; the subspecies is not addressed (BLI 2010o). It is not listed in
any appendices of CITES. The NSW Threatened Species Conservation Act of
1995 lists the Lord Howe pied currawong as vulnerable due to its
extremely limited range (it only occurs on Lord Howe Island) and its
small population size (NSW DECC 2010). The pied currawong is also
listed as vulnerable under the Australian Commonwealth Environment
Protection and Biodiversity Conservation Act of 1999. These laws
provide a legislative framework to protect and encourage the recovery
of vulnerable species (NSW DEC 2006a). The Lord Howe Island Act of
1953, as amended, (1) established the Lord Howe Island Board (LHIB),
(2) made provisions for the LHIB to care,
[[Page 24622]]
control, and manage the island; and (3) established 75 percent of the
land area as a permanent park preserve (NSW DEC 2007). Additionally,
the Lord Howe Island Biodiversity Management Plan was finalized in
2007, and is the formal Recovery Plan for threatened species and
communities of the Lord Howe Island Group (DEC 2007a, Government of
Australia 2005, p. 574).
In the previous ANOR, the Lord Howe pied currawong received an LPN
of 6. After reevaluating the threats to the Lord Howe pied currawong,
we have determined that no change in the LPN representing the magnitude
and imminence of threats to the subspecies is warranted. The Lord Howe
pied currawong does not represent a monotypic genus. It faces threats
that are high in magnitude due to a combination of factors including
its extremely small population size, nontarget poisoning, and habitat
clearing and modification. Despite conservation efforts, the population
of the Lord Howe pied currawong has remained around 100 to 200
individuals. Species with small, declining population sizes such as
these may be at greater risk of extinction due to synergistic effects
of factors affecting this species (Davies et al. 2004, pp. 265-271).
However, because conservation efforts for the species have been
implemented, and the species is being closely managed and monitored, we
find that the threats are nonimminent. Thus, based on the best
available information, the LPN remains at 6 to reflect nonimminent
threats of high magnitude.
Invertebrates
Harris' mimic swallowtail (Mimoides (syn. Eurytides) lysithous
harrisianus), LPN = 6
Species and Habitat Description
Harris' mimic swallowtail butterfly is a subspecies endemic to
Brazil (Collins and Morris 1985). Although the species' range
historically included Paraguay, the subspecies has not recently been
confirmed in Paraguay (Finnish University and Research Network 2004;
Collins and Morris 1985). Occupying the lowland swamps and sandy flats
above the tidal margins of the coastal Atlantic Forest, the subspecies
prefers alternating patches of strong sun and deep shade (Brown 1996;
Collins and Morris 1985). This subspecies is polyphagous, meaning that
its larvae feed on more than one plant species (Kotiaho et al. 2005).
Information on its preferred host plants and adult nectar-sources was
published in the status review (also known as a 12-month finding) on
December 7, 2004 (69 FR 70580). The Harris' mimic swallowtail butterfly
mimics at least three butterfly species in the Parides genus, including
the Fluminense swallowtail (described below). This mimicry system makes
it difficult to distinguish this subspecies from the species that it
mimics (Brown in litt. 2004; Monteiro et al. 2004).
Population
The Barra de S[atilde]o Jo[atilde]o colony is the best-studied.
Between 1984 and 2004, the population maintained a stable size, varying
between 50 to 250 individuals (Brown in litt. 2004; Brown 1996; Collins
and Morris 1985), and was reported to be viable, vigorous, and stable
in 2004 (Brown in litt. 2004). There are no estimates of the size of
the colony in Po[ccedil]o das Antas Biological Reserve where it had not
been seen for 30 years prior to its rediscovery there in 1997 (Brown in
litt. 2004). Population estimates are lacking for the colony at
Maca[eacute], where the subspecies was netted in Jurubatiba National
Park in the year 2000, after having not been seen in the area for 16
years (Monteiro et al. 2004).
Range
In Rio de Janeiro, Harris' mimic swallowtail has been confirmed in
three locations. Two colonies were identified on the east coast of Rio
de Janeiro, at Barra de S[atilde]o Jo[atilde]o and Maca[eacute], and
the other in Po[ccedil]o das Antas Biological Reserve, farther inland.
The range of Harris' mimic swallowtail overlaps two protected areas:
Po[ccedil]o das Antas Biological Reserve and Jurubatiba National Park,
and therefore it is somewhat protected from habitat loss. Both Barra de
S[atilde]o Jo[atilde]o and the Po[ccedil]o das Antas Biological Reserve
are within the S[atilde]o Jo[atilde]o River Basin. The Barra de
S[atilde]o Jo[atilde]o River Basin encompasses a 216,605-ha (535,240-
ac) area, of which 150,700 ha (372,286 ac) is managed as a protected
area. The Harris' mimic swallowtail was previously known in Espirito
Santo; however, there are no recent confirmations of its occurrence
there (New and Collins 1991; Collins and Morris 1985).
Factors Affecting the Species
Habitat destruction has been the main threat to this subspecies
(Brown 1996; Collins and Morris 1985), especially urbanization in Barra
de S[atilde]o Jo[atilde]o, industrialization in Maca[eacute]
(Jurubatiba National Park), and previous fires that occurred in the
Po[ccedil]o das Antas Biological Reserve. As described in detail for
the Fluminense swallowtail (below), Atlantic Forest habitat has been
reduced to 5 to 10 percent of its original cover. More than 70 percent
of the Brazilian population lives in the Atlantic Forest region, and
coastal development is ongoing throughout the Atlantic Forest region
(TNC 2009; Butler 2007; Conservation International 2007; CEPF 2007a;
H[ouml]fling 2007; Peixoto and Silva 2007; Pivello 2007; WWF 2007;
Hughes et al. 2006).
Habitat destruction caused by fires in the Po[ccedil]o das Antas
Biological Reserve appears to have abated. The Reserve was established
to protect the golden lion tamarin (Leontopithecus rosalia) (Decree No.
73,791, 1974), but the Harris' mimic swallowtail, which occupies the
same range, likely benefits as a result of efforts to conserve golden-
lion-tamarin habitat (Teixeira 2007; WWF 2003; De Roy 2002). The
revised management plan indicates that the Reserve is to be used for
research and conservation with limited public access (CEPF 2007a; IBAMA
2005). The Jurubatiba National Park is located in a region that is
undergoing continuing development pressures from urbanization and
industrialization (Savarese 2008; Khalip 2007; Brown 1996; IFC 2002;
CEPF 2007b; Otero and Brown 1984), and there is no management plan in
place for the Park (CEPF 2007b). However, as discussed for the
Fluminense swallowtail, the Park, as of 2007, was considered to be in a
very good state of conservation (Rocha et al. 2007).
As of 2004, conditions at Barra de S[atilde]o Jo[atilde]o appeared
to be suitable for long-term survival of this subspecies. The Harris'
mimic swallowtail's preferred environment of both open and shady areas
continues to be present in the region, with approximately 541 forest
patches averaging 127 ha (314 ac) in size, covering nearly 68,873 ha
(170,188 ac), and a minimum distance between forest patches of 276
meters (m) (0.17 mi) (Teixeira 2007). In studies between 1984 and 1991,
Brown (1996) determined that Harris' mimic swallowtails in Barra de
S[atilde]o Jo[atilde]o flew a maximum distance of 1,000 m (0.62 mi). It
follows that the average flying distance would be less than this
figure. Thus, the average 276-m (0.17-mi) distance between forest
patches in the Barra de S[atilde]o Jo[atilde]o River Basin is clearly
within the flying distance of this subspecies. Because the colony at
Barra de S[atilde]o Jo[atilde]o has maintained a stable population for
20 years, it may be that the conditions available there remain
suitable.
Another factor affecting butterfly species is collection. Trade in
wildlife parts and products is extremely lucrative, and, as wildlife
becomes rarer, it becomes worth more in value (TRAFFIC 2010, pp. 52,
122, 179). Although there are laws to prohibit
[[Page 24623]]
illegal wildlife trade, in some countries, laws are rarely enforced due
to inadequate resources; and only a fraction of smuggled wildlife is
intercepted (TRAFFIC 2012, p. 4; TRAFFIC 2010, p. 7). For example, in
1998, in the United States 100 Golden Birdwing (Troides aeacus, CITES
Appendix II) butterflies were seized; no permit had been issued for the
specimens, which had been falsely labeled before being exported from
Thailand (TRAFFIC 2010, p. 28). In 2001, two Russian insect collectors
were arrested in India and were found to have approximately 2,000
butterflies in their possession (p. 52). In 2007, a Japanese individual
was convicted for illegal sale of $38,831 U.S. dollars (USD) worth of
protected butterfly species. This individual is apparently known as the
world's top smuggler of protected butterflies. One of the smuggled
butterfly species was Homerus Swallowtail (Papilio homerus, CITES
Appendix I). During this investigation, 43 butterflies were sold to
undercover agents, including 2 Alexandra's birdwings (Ornithoptera
alexandrae, CITES Appendix I), 2 Luzon Peacock swallowtails (Papilio
chikae, CITES Appendix I), and 6 Corsican swallowtails (Papilio
hospiton, CITES Appendix I) (p. 122). In 2009, in Japan an individual
was sentenced to 1 year and 6 months' imprisonment and fined 1 million
yen ($10,750 USD) due to illegally importing and selling rare butterfly
species. He was found to have illegally imported 145 butterflies from
France. Among the specimens were three Queen Alexandra's Birdwings
(Ornithoptera alexandrae, CITES Appendix I) and one Apollo Butterfly
(Parnassius apollo, CITES Appendix II) (p. 179).
The only known populations are within close proximity to a major,
expanding city in Brazil--Rio de Janiero, the second largest city in
Brazil. As this species becomes rarer, it becomes even more desirable
to collectors (TRAFFIC 2010, pp. 52, 122, 179). Although the species
exists in a protected area, collectors will take risks to obtain these
rare and desirable species. Although we do not know the full extent of
illegal trade, according to the 2010 TRAFFIC report, this may represent
only a small fraction of the illegal collection of butterfly species
that occurs.
Conservation Status
IBAMA considers this subspecies to be critically imperiled
(Portaria No. 1,522 1989; Ministerio de Meio Ambiente 2003). As of
1996, collection and trade of the subspecies was prohibited (Brown
1996). In 1998, Brazil enacted the Lei de Crimes Ambientais ou Lei da
Natureza--Law no 9.605/98, which addresses environmental crimes and
sets forth penal and administrative penalties resulting from activities
that are harmful to the environment (IBAMA 2011). This law addresses
the integrity of biodiversity and other natural resources and assesses
civil, administrative, and criminal penalties to private individuals,
corporations, and businesses. Harris' mimic swallowtail was categorized
on the IUCN Red List as endangered in the 1988, 1990, and 1994 IUCN Red
Lists (IUCN 1996). However, it currently is not included in the current
IUCN Redlist (IUCN 2010; Xerces Society 2010a). This species is not
listed on any appendices of CITES.
In the previous ANOR, the Harris' mimic swallowtail received an LPN
of 6. After reevaluating the threats to this species, we have
determined that no change in the listing prioritization number is
warranted. Harris' mimic swallowtail is a subspecies and is not within
a monotypic genus. Although the best-studied colony has maintained a
stable and viable size for nearly two decades, there is limited
suitable habitat remaining for this subspecies. Habitat destruction
remains a threat. These threats are high in magnitude due to its small
endemic population, collection, and potential catastrophic events such
as severe tropical storms or introduction of a new disease or predator.
Because the population is very small and limited to only two small
areas, we find the threats are of high magnitude. However, we do not
find that these threats are imminent because the subspecies is
protected by Brazilian law, and the colonies are located within
protected areas. Based on the best available information, the LPN of 6
will remain to reflect nonimminent threats of high magnitude for this
species.
Jamaican Kite Swallowtail (Protographium marcellinus, syn. Eurytides),
LPN = 2
Species Description and Range
The Jamaican kite swallowtail butterfly is endemic to Jamaica,
preferring wooded, undisturbed habitat containing its only known larval
host plant: black lancewood or West Indian lancewood (Oxandra
lanceolata). The food preferences of adults have not been reported
(Bailey 1994; Collins and Morris 1985). Since the 1990s, adult Jamaican
kite swallowtails have been observed in the parishes of St. Thomas and
St. Andrew in the east; westward in St. Ann, Trelawny, and St.
Elizabeth; and in the extreme western coast, in the Parish of
Westmoreland (Garraway in litt 2011; Harris 2002; M[ouml]hn 2002; WRC
2001; Bailey 1994; Smith et al. 1994). There is only one known breeding
site in the eastern coast town of Rozelle, St. Thomas Parish, although
it is possible that other sites exist given the widely dispersed nature
of the larval food plant (Garraway in litt 2011; Robbins in litt. 2004;
Garraway et al. 1993; Bailey 1994; Smith et al. 1994; Collins and
Morris 1985).
Population
The Jamaican kite swallowtail maintains a low population level;
there is no known estimate of its population size (Garraway 2011 in
litt). It occasionally becomes locally abundant in Kingston and Rozelle
during the breeding season in early summer and again in early fall
(Garraway in litt 2011; Bailey 1994; Smith et al. 1994; Garraway et al.
1993; Collins and Morris 1985; Brown and Heineman 1972), and
experiences episodic population explosions (72 FR 20184; 69 FR 70580).
The population in St. Thomas has generally been regarded as the core
population (Garraway in litt 2011).
Factors Affecting the Species
Habitat loss and degradation had been considered to be the primary
factors affecting the Jamaican kite swallowtail; however, now the
primary factors affecting the species are believed to be its small
population size and that it is endemic only to Jamaica (Garraway in
litt 2011). After centuries of a high rate of deforestation, the island
lost much of its original forest (Gartner et al., 2008, pp. 8, 11;
Berglund and Johansson 2004, pp. 2, 5; Evelyn and Camirand 2003, p.
354; Koenig 2001, p. 206; Koenig 1999, p. 9). Eight percent of the
total land area of Jamaica is covered with forest classified as
minimally disturbed closed broadleaf (Evelyn and Camirand 2003 in
Strong in litt. 2011). Some of the species' most important habitat is
protected from human activities due to the inaccessibility of the
habitat, but even these areas have been encroached upon and degraded.
However, in some areas, its habitat is regenerating (Garraway in litt.
2011).
Monophagous butterflies (meaning that their larvae feed only on a
single plant species) such as the Jamaican kite swallowtail tend to be
more affected by habitat degradation than polyphagous species, due
largely to their specific habitat and ecological requirements (Kotiaho
et al. 2005). Harvest and clearing has reduced the availability of this
species' only known larval food plant. In Rozelle, extensive habitat
modification for agricultural and
[[Page 24624]]
industrial purposes such as mining has diminished this species' habitat
(WWF 2001; Gimenez-Dixon 1996). When habitat is altered through open-
pit mining, it is irreversibly modified and, therefore, it is
impossible to restore the previous ecosystem. These sites can be
rehabilitated; however, a typical reclaimed and rehabilitated site
often fails to regenerate with woody vegetation (Strong in litt. 2011).
As of 2004, black lancewood was being impacted by clearing for
cultivation and by felling for the commercial timber industry (Windsor
Plywood 2004; Collins and Morris 1985). However, more recent
information indicates that its food source is more readily available
than previously believed (Garraway in litt 2011).
Jamaica is subject to high-impact stochastic events such as
hurricanes. Hurricane-related weather damage in the last two decades
along the coastal zone of Rozelle has resulted in the erosion and
virtual disappearance of the once-extensive recreational beach
(Economic Commission for Latin America and the Caribbean (ECLAC),
United Nations Development Programme (UNDP), and the Planning Institute
of Jamaica (PIOJ) (2004)). Hurricane Ivan, a category 5 hurricane,
caused severe local damage to Rozelle Beach in 2004, including road
collapse caused by the erosion of the cliff face and shoreline. The
estimated restoration cost from Hurricane Ivan damage was $23 million
USD ($1.6 million Jamaican dollars (J$) (ECLAC et al. 2004), indicating
the severity of the damage inflicted by these hurricanes. While we do
not consider stochastic events to be a primary factor affecting this
species, we believe that the damage caused by hurricanes is
contributing to habitat loss.
The Jamaican kite swallowtail has been collected for commercial
trade in the past (Melisch 2000; Sch[uuml]tz 2000; Collins and Morris
1985). The Jamaican Wildlife Protection Act of 1998 carries a maximum
penalty of U.S. $1,439 (J $100,000) or 12 months of imprisonment for
violating its provisions. This deterrent appears to be effectively
protecting this species from illegal trade (National Environment and
Planning Agency 2005). As of 2008, we were unaware of any recent
seizures under the Lacey Act or smuggling of this species into or out
of the United States (Office of Law Enforcement, U.S. Fish and Wildlife
Service, Arlington, Virginia in litt.). With the legal prohibition
described below in effect, however, the current impact of collection is
likely negligible (Garraway in litt 2011).
Conservation Status
Various levels of conservation exist for the species. In addition
to being protected under Jamaica's Wildlife Protection Act of 1998, it
is also included in Jamaica's National Strategy and Action Plan on
Biological Diversity. This strategy established specific goals and
priorities for the conservation of Jamaica's biological resources
(Schedules of The Wildlife Protection Act 1998). The Forest Act of 1996
and the Forest Regulations Act of 2001 increased the power of Jamaican
authorities to protect the species' habitat (Gartner et al. 2008, pp.
9-10). These included mandates to determine the biodiversity in the
forest as well as the ability to acquire private lands as forest
reserves. Since 1985, the Jamaican kite swallowtail has been
categorized on the IUCN Red List as ``Vulnerable'' (IUCN 2012). This
species is not listed in any of the appendices of CITES (CITES 2012).
In the previous ANOR, the Jamaican kite swallowtail received an LPN
of 2. After reevaluating the factors affecting the Jamaican kite
swallowtail, we have determined that no change in the listing priority
number is warranted. The Jamaican kite swallowtail does not represent a
monotypic genus. The current factors affecting the species are high in
magnitude particularly since there is only one known larval host plant.
There is only one known breeding site and the species' larval food
plant has a restricted distribution. In addition, stochastic events
such as hurricanes and tropical storms are unpredictable but are likely
to occur. Although Jamaica has taken regulatory steps to preserve
native swallowtail habitat, the threats affecting this species are
imminent; it has a very small population size, and habitat destruction
based on hurricanes and tropical storms is very likely to occur. Based
on a reevaluation of the threats to this species, the LPN remains a 2
to reflect imminent threats of high magnitude.
Fluminense Swallowtail (Parides ascanius), LPN = 5
Species and Habitat Description
The Fluminense swallowtail is a white and rose swallowtail
butterfly endemic to Brazil's restinga habitat within the Atlantic
Forest region in the tropical and subtropical moist broadleaf forests
of southeastern coastal Brazil (Uehara-Prado and Fonesca 2007, p. 265;
Thomas 2003). Its habitat is characterized by medium-sized trees and
shrubs that are adapted to coastal conditions (Kelecom et al 2002, p.
171). During the caterpillar stage of its lifecycle, it feeds on
Aristolochia macroura (Dutchman's pipe) and is believed to be
monophagous (Otero and Brown 1984).
Range
One study predicted the species potentially occurs in an area of
1,675,457 ha (4,140,127 ac) within the State of Rio de Janeiro (Uehara-
Prado and Fonseca 2007, p. 265). While the presence of suitable habitat
should not be used to infer the presence of a species, it can
facilitate more focused efforts to identify and confirm additional
locations and the conservation status of the Fluminense swallowtail
(Uehara-Prado and Fonseca 2007, p. 266). The only known occurrences of
the Fluminense swallowtail correlated with existing protected areas
within Rio de Janeiro, including the Po[ccedil]o das Antas Biological
Reserve (Uehara-Prado and Fonseca 2007). This Reserve, established in
1974, encompasses 13,096 ac (5,300 ha) of inland Atlantic Forest
habitat (CEPF 2007a; Decree No. 73,791, 1974). The Po[ccedil]o das
Antas Biological Reserve and the Jurubatiba National Park are the only
two protected areas considered large enough to support viable
populations of the Fluminense swallowtail (Brown in litt. 2004; Robbins
in litt. 2004; Otero and Brown 1984).
In Rio de Janeiro, the species has been documented in five
locations including: Barra de S[atilde]o Jo[atilde]o and Maca[eacute]
(in the Restinga de Jurubatiba National Park) along the coast; and
farther inland at the Po[ccedil]o das Antas Biological Reserve (Brown
in litt. 2004). Other verified occurrences were in the [Aacute]rea de
Tombamento do Mangue do Rio Para[iacute]ba do Sul and in Parque Natural
Municipal do Bosque da Barra (Instituto Iguacu 2008; Uehara-Prado and
Fonseca 2007).
Population
This swallowtail species is sparsely distributed throughout its
range, reflecting the patchy distribution of its preferred habitat
(Uehara-Prado and Fonseca 2007; Tyler et al. 1994; Otero and Brown
1984). The species is described as being seasonally common, with
sightings of up to 50 individuals seen in one morning in the Barra de
S[atilde]o Jo[atilde]o area. It was historically seen in Rio de
Janeiro, Espirito Santo, and S[atilde]o Paulo (Gelhaus et al. 2004).
However, there are no recent confirmations of this species in either
Espirito Santo or S[atilde]o Paulo.
A population estimate reported in 1984 in Barra de S[atilde]o
Jo[atilde]o was between 20 and 100 individuals (Otero and Brown 1984).
The colony within the
[[Page 24625]]
Po[ccedil]o das Antas Biological Reserve was rediscovered in 1997,
after a nearly 30-year absence from this location (Brown in litt.
2004). Researchers noted only that ``large numbers'' of swallowtails
were observed (Brown in litt. 2004; Robbins in litt. 2004). There are
no population estimates for other colonies. However, individuals from
the population considered to be the most viable in Barra de S[atilde]o
Jo[atilde]o migrate widely in some years, and this is likely to enhance
gene flow among colonies (Brown in litt. 2004).
Factors Affecting the Species
Habitat destruction has been the main factor affecting this species
(Brown 1996; Gimenez Dixon 1996; Collins and Morris 1985). Monophagous
butterflies tend to be more susceptible to habitat degradation than
polyphagous species (Kotiaho et al. 2005, p. 1,966), and the restinga
habitat preferred by Fluminense swallowtails is a highly specialized
environment that is restricted in distribution (Ueraha-Prado and
Fonseca 2007, p. 264; Brown in litt. 2004; Otero and Brown 1986).
Fluminense swallowtails require large areas to maintain viable
populations (Uehara-Prado et al. 2007, pp. 43-53; Brown in litt. 2004;
Otero and Brown 1986). The Atlantic Forest habitat, which once covered
1.4 million km\2\ (540,543 mi\2\), has been reduced to between 5 and 10
percent of its original cover. It also contains more than 70 percent of
the Brazilian human population (TNC 2009; Butler 2007; Conservation
International 2007; CEPF 2007a; H[ouml]fling 2007; WWF 2007). The
restinga habitat upon which this species depends was reduced by 17
km\2\ (6.56 mi\2\) each year between 1984 and 2001, equivalent to a
loss of 40 percent of restinga vegetation over the 17-year period
(Temer 2006, unpaginated). In addition, of the forest that remains, 83
percent exists in small fragments of less than 50 ha (123 acres). The
major ongoing human activities that have resulted in habitat loss,
degradation, and fragmentation include: conversion to agriculture,
plantations, livestock pastures, human settlements, hydropower
reservoirs, commercial logging, subsistence activities, and coastal
development (Butler 2007; Pivello 2007; TNC 2007; Peixoto and Silva
2007; WWF 2007; Hughes et al. 2006).
Collection and commercial exploitation was identified as a factor
affecting the Fluminense swallowtail (Collins and Morris 1985; Melisch
2000; Sch[uuml]tz 2000). The species is easy to capture. Species with
restricted distributions or localized populations, such as the
Fluminense swallowtail, tend to be more vulnerable to overcollection
than those with a wider distribution (Brown in litt. 2004; Robbins in
litt. 2004).
Parasitism has been indicated to be another factor affecting the
Fluminense swallowtail. Recently, Tavares et al. (2006) discovered four
species of parasitic chalcid wasps (Brachymeria and Conura species;
Hymenoptera family) associated with Fluminense swallowtails.
Parasitoids are species whose immature stages develop on or within an
insect host of another species, ultimately killing the host (Weeden et
al. 1976). This is the first report of parasitoid association with
Fluminense swallowtails (Tavares et al. 2006, p. 1,197). To date, there
is no information regarding the magnitude of effect these parasites are
having on the Fluminense swallowtail.
Although the Fluminense swallowtail and the Harris' mimic
swallowtail face similar threats, there are several dissimilarities
that influence the magnitude of these threats. Fluminense swallowtails
are monophagous (Kotiaho et al. 2005; Otero and Brown 1984). In
contrast, Harris' mimic swallowtail is polyphagous (Brown 1996; Collins
and Morse 1985); its larvae feed on more than one plant species
(Kotiaho et al. 2005). In addition, although their ranges overlap,
Harris' mimic swallowtails tolerate a wider range of habitat than the
highly specialized restinga habitat preferred by the Fluminense
swallowtail. Also unlike the Harris' mimic swallowtail, Fluminense
swallowtails require a large area to maintain a viable population
(Brown in litt. 2004; Monteiro et al. 2004); in part because they are
known to feed on only one food source.
According to the 2005 management plan (IBAMA 2005), the Po[ccedil]o
das Antas Biological Reserve is used solely for protection, research,
and environmental education. Public access is restricted, and there is
an emphasis on habitat conservation, including protection of the
R[iacute]o S[atilde]o Jo[atilde]o. This river runs through the Reserve
and is integral to maintaining the restinga conditions preferred by the
Fluminense swallowtail. The Reserve was plagued by fires in the late
1980s through the early 2000s, but fire is not currently believed to be
a factor affecting the species. Between 2001 and 2006, there was an
increase in the number of private protected areas near or adjacent to
the Po[ccedil]o das Antas Biological Reserve and Barra de S[atilde]o
Jo[atilde]o (Critical Ecosystem Partnership Fund (CEPF) 2007a).
Corridors have been planned or created to connect existing protected
areas and 13 privately protected forests by planting and restoring
habitat previously cleared for agriculture or by fires, which should
assist the habitat connectivity for this species (De Roy 2002,
unpaginated).
The Jurubatiba National Park (14,860 ha; 36,720 mi\2\), located in
Maca[eacute] and established in 1998 (Decree of April 29 1998), is one
of the largest contiguous areas containing restinga habitat under
protection in Brazil (CEPF 2007b; Rocha et al. 2007). The Maca[eacute]
River Basin forms the outer edge of the Jurubatiba National Park and
contains the habitat preferred by the Fluminense swallowtail
((International Finance Corporation (IFC) 2002; Brown 1996; Otero and
Brown 1984). Rocha et al. (2007) described the habitat as being in a
very good state of conservation, but lacking a formal management plan.
Threats to the Maca[eacute] region include industrialization for oil
reserve and power development (IFC 2002) and intense population
pressures (including migration and infrastructural development) (Brown
1996; CEPF 2007b; IFC 2002; Khalip 2007; Otero and Brown 1984; Savarese
2008). The researchers concluded that the existing protected area
system may be inadequate for the conservation of this species.
Conservation Status
Brazil categorizes the Fluminense swallowtail to be ``Imperiled''
(Portaria No. 1,522 1989; MMA 2003). Commerce in this species is
strictly prohibited (Brown in litt. 2004). According to the 2012 IUCN
Red List, the Fluminense swallowtail has been classified as
``Vulnerable'' since 1983, based on its distribution and habitat
fragmentation and loss that has occurred within its predicted range.
This species has not been formally considered for listing in the
appendices to CITES (www.cites.org). However, the European Commission
listed Fluminense swallowtail on Annex B of Regulation 338/97 in 1997
(Grimm in litt. 2008), and the species continues to be listed on this
Annex (Eur-Lex 2008, verified August 20, 2012). There has been no legal
trade of this species into the European Union since its listing on
Annex B (Grimm in litt. 2008), nor are we aware of any recent reports
of seizures under the Lacey Act or smuggling in this species into or
out of the United States (Office of Law Enforcement, U.S. Fish and
Wildlife Service, Arlington, Virginia in litt. 2008).
In the previous ANOR, the Fluminense swallowtail received an LPN of
5. After reevaluating the factors affecting the Fluminense swallowtail,
[[Page 24626]]
we have determined that no change in the listing priority number is
warranted. The Fluminense swallowtail does not represent a monotypic
genus. The species is currently affected by habitat destruction;
however, we have no information to suggest that overutilization and
parasitism are currently occurring such that they are threats to the
Fluminense swallowtail. Habitat destruction is of high magnitude
because the species: (1) Occupies highly specialized habitat; (2)
requires large areas to maintain a viable colony; and (3) is only found
within two protected areas considered to be large enough to support
viable colonies. However, additional populations have been reported,
increasing previously known population numbers and distribution. The
threat of habitat destruction is nonimminent because most habitat
modification is the result of historical destruction that has resulted
in fragmentation of the current landscape; however, the potential for
continued habitat modification exists, and we will continue to monitor
the situation. Based on the conservation measures in place, we believe
that overutilization is not currently a threat to the Fluminense
swallowtail. On the basis of this information, the Fluminense
swallowtail retains a priority rank of 5.
Hahnel's Amazonian Swallowtail (Parides hahneli), LPN = 2
Species and Habitat
Hahnel's Amazonian swallowtail is endemic to Brazil and is found
only on sandy beaches where the habitat is overgrown with dense scrub
vegetation (Tyler et al. 1994; New and Collins 1991; Collins and Morris
1985). Hahnel's Amazonian swallowtail is likely monophagous. This
swallowtail depends upon highly specialized habitat--beaches of river
drainage areas. Wells et al. (1983) describe the habitat as ancient
sandy beaches covered by scrubby or dense vegetation that is not
floristically diverse. The larval host-plant is believed to be a
species in the Dutchman's pipe genus, either Aristolochia lanceolato-
lorato or A. acutifolia (Tyler et al. 1994; Collins and Morris 1985).
Hahnel's Amazonian swallowtail is known from three locations along
the tributaries of the middle and lower Amazon River basin in the
states of Amazonas and Par[aacute] (Brown 1996; Tyler et al. 1994; New
and Collins 1991; Collins and Morris 1985). Hahnel's Amazonian
swallowtail is highly localized, reflecting the distribution of its
highly specialized preferred habitat (Brown in litt. 2004).
Population
The population size of Hahnel's Amazonian swallowtail is not known,
nor do we have information on any population trend for this species.
Within its range, Hahnel's Amazonian swallowtail populations are
described as being small (Brown in litt. 2004).
Factors Affecting the Species
Habitat alteration (e.g., for dam construction and waterway crop
transport) and destruction (e.g., clearing for agriculture and cattle
grazing) are ongoing in Par[aacute] and Amazonas where this species is
found (Hurwitz 2007; Fearnside 2006). Researchers believe that, because
Hahnel's Amazonian swallowtail has extremely limited habitat
preferences, any sort of river modification such as impoundment,
channelization, or levee construction would have an immediate and
highly negative impact on the species (New and Collins 1991; Wells et
al. 1983).
Competition for host plants has been identified as a potential
factor affecting Hahnel's Amazonian swallowtail. Researchers in the
past believed that this species might suffer from host plant
competition with other butterfly species in the region (Brown 1996;
Collins and Morris 1985; Wells 1983). It occupies the same range with
another swallowtail butterfly, Parides chabrias ygdrasilla, and mimics
at least two other genera that occupy the same area, Methona and
Thyrides (Brown 1996). However, this competition has not been
confirmed, and, at this time, there is insufficient information to
conclude that this is a factor affecting this species.
This species of swallowtail has been collected for commercial trade
(https://www.johnnyvalencia.com/?tag=parides-hahneli; Melisch 2000;
Sch[uuml]tz 2000; Collins and Morris 1985). Species with restricted
distributions or localized populations, such as the Hahnel's Amazonian
swallowtail, are more vulnerable to collection than those with a wider
distribution (Brown in litt. 2004; Robbins in litt. 2004). Although not
strictly protected from collection throughout Brazil, the state of
Par[aacute] recently declared the capture of Hahnel's Amazonian
swallowtail for purposes other than research to be forbidden (Decreto
No. 802, 2008). As of 2008, seizures under the Lacey Act of Hahnel's
Amazonian swallowtail into or out of the United States had not been
reported (Office of Law Enforcement, U.S. Fish and Wildlife Service,
Arlington, Virginia in litt. 2008). The best available information does
not indicate that collection is impacting the species.
Conservation Status
Hahnel's Amazonian swallowtail continues to be listed as ``Data
Deficient'' by the IUCN Red List (IUCN 2012). Hahnel's Amazonian
swallowtail is listed as endangered on the state of Par[aacute]'s list
of threatened species (Resolu[ccedil][atilde]o 054 2007; Decreto No.
802 2008; Secco and Santos 2008). Hahnel's Amazonian swallowtail is not
listed in any Appendices of CITES (CITES 2012). Hahnel's Amazonian
swallowtail is listed on Annex B of Regulation 338/97 (Eur-Lex 2008),
and there has been no legal trade in this species into the European
Union since its listing on Annex B in 1997 (Grimm in litt. 2008).
In our previous ANOR, the Hahnel's Amazonian swallowtail received
an LPN of 2. After reevaluating the threats to the Hahnel's Amazonian
swallowtail, we have determined that no change in the LPN is warranted.
This swallowtail does not represent a monotypic genus. It faces threats
that are high in magnitude and imminence due to its small endemic
population, and limited and decreasing availability of its highly
specialized habitat (beaches of river drainage area) and food sources.
Dam construction, waterway crop transport, clearing for agriculture and
cattle grazing are ongoing in Par[aacute] and Amazonas. These threats
are imminent due to the species' highly localized and specialized
habitat requirements. Secondary concerns are possible illegal
collection and competition with other species. Based on a reevaluation
of the threats, the LPN remains a 2 to reflect imminent threats of high
magnitude.
Kaiser-I-Hind Swallowtail (Teinopalpus imperialis), LPN = 8
Species Description and Range
The Kaiser-I-Hind swallowtail is native to the Himalayan regions of
Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam
(TRAFFIC 2007; Baral et al. 2005; Food and Agriculture Organization
(FAO) 2001; Igarashi 2001; Masui and Uehara 2000; Forest Resources
Assessment Program of Bhutan 1999; Osada et al. 1999; Tordoff et al.
1999; Trai and Richardson 1999; Shrestha 1997). This species prefers
undisturbed (primary), heterogeneous, broad-leaved-evergreen forests or
montane deciduous forests, and is found at altitudes between 1,500 and
3,050 m (4,921 to 10,000 ft) (Igarashi 2001; Tordoff et al. 1999;
Collins and Morris 1985). This species is polyphagous. It has been
reported that the adult Kaiser-I-Hind swallowtails do not feed, but
this remains unclear (Collins and Morris 1985). Larval host-
[[Page 24627]]
plants may differ across the species' range, but they include:
Magnolia campbellii in China (Sung and Yan 2005; Yen and Yang 2001;
Igarashi and Fukuda 2000);
Magnolia spp. in Vietnam (Funet 2004);
Daphne spp. in India, Nepal, and Myanmar (Funet 2004); and
Daphne nipalensis also in India (Robinson et al. 2004).
Populations
Despite the species' widespread distribution, local populations are
described as not being abundant (Collins and Morris 1985). The known
locations within each range country are as follows:
Bhutan: The species was reported to be extant (still in existence)
in Bhutan (FRAP 1999; Gimenez Dixon 1996), although specific details on
locations or population information are not readily available.
China: The species has been reported in Fuji, Guangxi, Hubei,
Jiangsu, Sichuan, and Yunnan Provinces (Sung and Yan 2005; Igarashi and
Fukuda 2000; UNEP-WCMC 1999; Gimenez Dixon 1996; Collins and Morris
1985).
India: Assam, Manipur, Meghalaya, Sikkim, and West Bengal (Bahuguna
1998; Collins and Morris 1985; Gimenez Dixon 1996; Ministry of
Environment and Forests 2005). There is no recent status information on
this species (Bombay Natural History Society in litt. 2007) with the
exception of the region of Assam where the species had not been sighted
in several years (Barua et al. 2010, p. 8).
Laos: The species has been reported in Laos (Osada et al. 1999),
but no further information is available (Vonxaiya in litt. 2007).
Myanmar: The species has been reported in Shan, Kayah (Karen) and
Thaninanthayi (Tenasserim) states (Collins and Morris 1985; Gimenez
Dixon 1996).
Nepal: The species has been reported in Nepal in the Central
Administrative Region at two localities: Phulchoki Mountain Forest and
Shivapuri National Park (Baral et al. 2005; Nepali Times 2002; Shrestha
1997, Gimenez Dixon 1996; Collins and Morris 1985).
Thailand: The species has been reported in the northern province of
Chang Mai (Pornpitagpan 1999). The species has limited distribution in
the higher elevation mountains (greater than 1,500 m (4,921 ft)) of
northern Thailand and is found within three national parks according to
the CITES Scientific Authority of Thailand (2007).
Vietnam: The species has been confirmed in three Nature Reserves
(Tordoff et al. 1999; Trai and Richardson 1999).
Factors Affecting the Species
Habitat destruction is believed to negatively impact this species,
which prefers undisturbed high-altitude habitat (Igarashi 2001; Tordoff
et al. 1999; Collins and Morris 1985). In China and India, the Kaiser-
I-Hind swallowtail populations are at risk from habitat modification
and destruction due to commercial and illegal logging (Barua et al.
2010; Maheshwari 2003; Yen and Yang 2001). In Nepal, the species is at
risk from habitat disturbance and destruction resulting from mining,
wood collection for use as fuel, agriculture, and grazing animals
(Baral et al. 2005; Shrestha 1997; Collins and Morris 1985). In Nepal,
the Forest Ministry considered habitat destruction to be a critical
threat to all biodiversity, including the Kaiser-I-Hind swallowtail, in
the development of its biodiversity strategy (HMGN 2002). In Thailand,
habitat degradation and loss caused by deforestation and land
conversion for agricultural purposes is considered to be a primary
factor affecting this species (FAO 2001; Hongthong 1998).
The Kaiser-I-Hind swallowtail is highly valued and has been
collected for commercial trade, despite range country regulations
prohibiting or restricting such activities, in part because it is very
difficult to enforce protections for species such as butterflies that
are easy to collect and smuggle (TRAFFIC 2007; Sch[uuml]tz 2000;
Collins and Morris 1985). Between 1990 and 1997, illegally collected
specimens were selling for 500 Rupees (12 USD) per female and 30 Rupees
in India (0.73 USD) per male (Bahuguna 1998), and illegal species
purportedly derived from Sichuan were being advertised for sale on the
internet for 60 U.S. Dollars (US$), despite restrictions in China.
In a recent survey conducted by TRAFFIC Southeast Asia (2007), of
2,000 residents in Ha Noi, Vietnam, the Kaiser-I-Hind swallowtail was
among 37 Schedule IIB-species that were actively being collected (p.
36). The majority of the survey respondents were unaware of legislation
prohibiting collection of Schedule IIB-species (p. 7). This is a highly
desirable species, and there is a culture within Vietnam of consuming
rare and expensive wild animal dishes, particularly in Ha Noi among the
elite (TRAFFIC 2007, p. 9). This practice does not seem to be
decreasing; rather it appears to be increasing. Although Vietnam has
implemented several action plans to strengthen control of trade in wild
fauna and flora (TRAFFIC 2007, p. 9), within-country protections are
likely inadequate to protect this species from illegal collection
throughout its range.
According to the Thai Scientific Authority, there are no captive
breeding programs for this species; however, the species is offered for
sale by the Lepidoptera Breeders Association (2009). It was marketed as
derived from a captive breeding program in Thailand, although in 2009,
specimens were noted as being ``out of stock'' (Lepidoptera Breeders
Association 2009).
Between 1991 and 2012, CITES records indicate that 163 specimens
were traded internationally under valid CITES permits (UNEP-WCMC CITES
trade database 2012). Reports that the Kaiser-I-Hind swallowtail is
being captive-bred in Taiwan (Yen and Yang 2001) remain unconfirmed.
Since 1993, there have been no reported seizures under the Lacey Act or
smuggling of this species into or out of the United States (Office of
Law Enforcement, U.S. Fish and Wildlife Service, Arlington, Virginia in
litt. 2008). Therefore, on the basis of global trade data, although
illegal trade remains a concern, we do not consider legal international
trade to be a significant factor affecting this species.
Conservation Status
Since 1996, the Kaiser-I-Hind swallowtail has been categorized on
the IUCN Red List as ``Lower Risk/near threatened'' (IUCN 2012; Gimenez
Dixon 1996). The Kaiser-I-Hind swallowtail has been listed in CITES
Appendix II since 1987 (CITES 2012).
In China, the species is protected by the Animals and Plants
(Protection of Endangered Species) Ordinance (1989), which restricts
import, export, and possession of the species. On China's 2005 Species
Red List, it was described as ``Vulnerable'' (China Red List 2006).
In India, the Kaiser-I-Hind swallowtail is listed on Schedule II of
the Indian Wildlife Protection Act of 1972, which prohibits hunting
without a license (Indian Wildlife Protection Act 2006; Collins and
Morris 1985).
In Nepal, the Kaiser-I-Hind swallowtail is protected by the
National Parks and Wildlife Conservation Act of 1973 (His Majesty's
Government of Nepal (HMGN) 2002). However, the Forestry Ministry of
Nepal determined in 2002 that the high commercial value of its
``Endangered'' species on the local and international market may result
in local extinctions of species such as the Kaiser-I-Hind (HMGN 2002).
In Thailand, the Kaiser-I-Hind swallowtail and 13 other
invertebrates are listed under Thailand's Wild Animal Reservation and
Protection Act
[[Page 24628]]
(WARPA) of 1992 (B.E. 2535 1992), which makes it illegal to collect
wildlife (whether alive or dead) or to have the species in one's
possession (Choldumrongkul in litt. 2007; FAO 2001; Pornpitagpan 1999;
Hongthong 1998). In addition to prohibiting possession, WARPA prohibits
hunting, breeding, and trading. Import and export are allowed only for
conservation purposes (Jaisielthum in litt. 2007).
In Vietnam, the species is listed as ``Vulnerable'' in the 2007
Vietnam Red Data Book, due to declining population sizes and area of
occupancy (Canh in litt. 2007). In Vietnam, this species of swallowtail
is reported to be among the most valuable of all butterflies (World
Bank 2005). In 2006, the species was listed on Vietnam's Schedule IIB
of Decree No. 32 on ``Management of endangered, precious, and rare
forest plants and animals.'' A Schedule IIB-listing restricts the
exploitation or commercial use of species with small populations or
that are considered by the country to be in danger of extinction (Canh
in litt. 2007). The species is provided some protection from habitat
destruction in Vietnam, where it has been confirmed in three nature
reserves that have low levels of disturbance (Tordoff et al. 1999; Trai
and Richardson 1999).
After reevaluating the threats to this species, we have determined
that no change in its LPN is warranted. The Kaiser-I-Hind swallowtail
does not represent a monotypic genus. The current factors, habitat
destruction and illegal collection, are moderate in magnitude due to
the species' wide distribution and to various protections in place
within each country. We find that the threats are imminent due to
ongoing habitat destruction and high market value for specimens. Based
on our reassessment of the threats, we have retained an LPN of 8 to
reflect imminent threats of moderate magnitude.
Molluscs
Colorado Delta Clam (Mulinia coloradoensis), LPN = 2
Taxonomy
The Colorado Delta clam is a member of the family Mactridae (Phylum
Mollusca). This species is restricted to the Gulf of California and
west Mexican area (Keen 1971, p. 207). The treatment of Mulinia
coloradoensis as a distinct species is widely accepted among experts of
molluscan studies (Arizona-Sonora Desert Museum 2011, p. 1; Smithsonian
Institution 2011, p. 1; Gemmell et al. 1987, p. 45; Bernard 1983, p.
40). The taxonomy of M. coloradoensis has been validated as a unique
species through morphometric analysis (Flessa and Tellez-Duarte 2001,
p. 5). Accordingly, we conclude that M. coloradoensis is a valid
species.
Species Description
The Colorado Delta clam was described by Dall (1894, p. 6) as
having a ``larger'' shell, solid, rude (relatively undeveloped or
primitive), equilateral, resembling M. modesta, but having a more
arched posterior dorsal margin, the base behind the posterior dorsal
angle. It was also described as being somewhat concavely flexuous, with
slightly elevated ridges that radiate. The length of a medium-sized
specimen is 49 millimeters (mm) (0.2 in), and its height 36.5 mm (0.14
in), and the width is 32 mm (0.13 in). Rodriguez et al. (2001a, p. 253)
report the species can reach lengths of almost 60 mm (0.24 in).
Little is known about the life history of the Colorado Delta clam.
The species is known to take 3 years to grow to an average adult size
of 30 mm (0.12 in) (Kowalewski et al. 2000, p. 1060; Kowalewski et al.
1994, p. 231), and it likely does not live much longer. The lifespan of
this species is likely about 3 years, which is average for this genus.
Other species of Mulinia are known to live up to 2 years (Lu et al.
1996, p. 3482). The family Mactridae is commonly found in sandy or
muddy substrates associated with brackish water (Leal 2002, p. 59-61).
This species is an infaunal (aquatic animal that lives in the substrate
of a body of water, usually in a soft sea bottom), suspension-feeding
estuarine bivalve (Rodriguez et al. 2001a, p. 252). The species is
found in low intertidal mud at depths of about 7 cm (2.75 in) beneath
sediment (Rodriguez et al. 2001a, p. 253).
No specific information has been collected regarding the
reproductive biology of the Colorado Delta clam, although Rodriguez et
al. (2001a, p. 255) speculate the species may spawn in response to
episodes of fresh water inflow. Reproduction in bivalves is mostly
through external fecundation (sperm and egg cells unite external to the
bodies of reproducing individuals) (Leal 2002, p. 26). A species within
the same genus, M. lateralis, is known to spawn from May to November
(Puglisi and Thiebaud 2008, p. 2; Lu et al. 1996, p. 3,482). A female
M. lateralis will release between 0.5 to 2 million eggs during a
spawning event (Lu et al. 1996, p. 3482), indicating the Colorado Delta
clam could potentially exhibit high fecundity in the proper conditions.
Historical Range
The Colorado Delta clam was once an abundant species in the head of
the Gulf of California in the estuary of the Colorado River (Martinez
2012; Dall 1894, p. 6). This species is present in cheniers (piles of
dead shells) as far as 75 km (47 mi) from the mouth of the Colorado
River Delta (Rodriguez et al. 2001b, pp. 185-186). This finding
indicates the species historically had a broad distribution (Martinez
2012; Alles 2006, p. 2; Arias et al. 2004, p. 11; Zamora-Arroyo et al.
2005, p. 2; Cohen et al. 2001, p. 35; Luecke et al. 1999, p. 1).
Current Range
This species is now known to exist as a relict population at Isla
Montague, Mexico, at the mouth of the Colorado River Delta (Martinez
2012; Cintra-Buenrostro et al. 2005, p. 296; Flessa and Tellez-Duarte
2001, p. 9; Rodriguez et al. 2001a, p. 251; Flessa and Rodriguez 1999,
p. 8). Although Keen (1971, p. 207) indicated the species also occurs
in ``west Mexican area,'' there are no reliable records of the species
from that area and the available evidence indicates the species'
distribution is restricted to the Delta (Flessa and Tellez-Duarte 2001,
p. 9; Flessa and Rodriguez 1999, p. 5).
The relative abundance of Colorado Delta clam is associated with
salinity, which is common with Mulinia clams (Flessa and Rodriguez
1999, p. 8). Abundance of dead shells of Colorado Delta clam decreases
with increasing distance from the mouth of the Colorado River,
suggesting the species distribution is influenced by freshwater inflow
(Rodriguez et al. 2001b, p. 188).
Population Estimate
We are unaware of precise estimates of the population size for
Colorado Delta clam. However, the species is believed to now comprise
less than one percent of the living fauna in the Delta (Avila-Serrano
et al. 2006, p. 656; Flessa and Tellez-Duarte 2001, p. 2; Rodriguez et
al. 2001b, p. 186; Kowalewski et al. 2000, p. 1060; Kowalewski et al.
1994, p. 219). Prior to 1998, the species was described as the most
abundant mollusk that lived in the Colorado River Delta area (Rodriguez
et al. 1998, p. 1). The best available information suggests that the
species has experienced a 90 percent reduction from historical
population size caused by the decrease in freshwater flow to the
estuary (Martinez 2012; Avila-Seranno et al. 2006, pp. 650, 658;
Cintra-Buenrostro 2005, p. 300).
[[Page 24629]]
Factors Affecting the Species
Virtually the entire flow of the Colorado River has been captured
and consumed by municipal, industrial, and agricultural users before
entering Mexico (Alles 2006, p. 2, 6; Cohen 2005, p. 2; Morrison et al.
1996, p. xii; Rodriguez et al. 2001b, p. 183). The Delta is now
believed to support only about 60,000 ha (150,000 ac) of wetland
habitats and riparian communities, having been reduced by over 90
percent over the past 80 years (Cohen 2005, p. 2; Arias et al. 2004, p.
11; Cohen et al. 2001, p. 35; Glenn et al. 1996, p. 1175). The
reduction in the extent of the estuary ecosystem in the Colorado Delta
mirrors the decline of the Colorado Delta clam (Martinez 2012). Through
examination of dead shells, which accumulate in cheniers, the Colorado
Delta clam once dominated the bivalve community of the Delta with a
massive population extending 75 km (47 mi) into the Gulf of California
(Rodriguez et al. 2001a, p. 254; Kowalewski et al. 2000, pp. 1059-
1060).
The relict population at Isla Montague continues to survive,
apparently on scarce and intermittent freshwater inflow (Martinez
2012). The ecological conditions within the Delta, upon which the
Colorado Delta clam depends, have undergone significant changes due to
the reduction of freshwater inflow. Rodriguez et al. (2001a, p. 257)
demonstrated that the decrease of freshwater, nutrients, and sediments
from Colorado River inflow is largely responsible for the decline in
the abundance and distribution of the Colorado Delta clam. Zamora-
Arroyo et al. (2005, p. 3) determined that lack of dedicated freshwater
input is the principle threat to the Delta and Upper Gulf of
California.
Since completion of upstream dams, primarily Glen Canyon Dam in
1963, very little fresh water reaches the Gulf of California in most
years (Avila-Serrano et al. 2006, p. 649; Baron et al. 2002, p. 1251;
Postel et al. 1998, p. 120; Glenn et al. 1992, p. 818). Construction of
upstream dams and diversions since the 1930s has transformed the upper
Gulf of California to an inverse estuary with salinity increasing
toward the mouth of the river (Rodriguez et al. 2001b, p. 183; Lavin et
al. 1998, p. 769). Salinity at the mouth of the Colorado River has
increased from 22-33 practical salinity units (psu) before the
construction of the Hoover Dam in 1923 to 38 psu today (Cintra-
Buenrostro et al. 2011). There are long periods when no fresh water
reaches the Gulf, which creates highly saline conditions and increasing
water temperatures (Varady et al. 2001, p. 205), and the estuary of the
Delta is becoming increasingly saline due to lack of freshwater inflow
(Alles 2006, p. 2). Dams also trap most sediment before it reaches the
Gulf (Alles 2006, p. 8). These conditions are not conducive to the
survival of this clam species.
Intermittent and unplanned flood releases from upstream dams
between 1980 and 2000 resulted in water flowing to the Delta in 10 of
those 20 years (Varady et al. 2001, p. 203), causing reestablishment of
riparian habitat (Rowell et al. 2006, pp. 47-48; Luecke et al. 1999, p.
7). These releases are likely critical to the maintenance of the
aquatic community in the estuary and the continued survival of the
species at Isla Montague.
In addition to intermittent flood releases from major dams along
the Colorado River, the Delta appears to also be sustained by
groundwater seepage and agricultural return water (Rowell et al. 2006,
p. 48; Arias et al. 2004, p. 12). The only water that now reaches the
Delta on a regular basis is agricultural return flows, largely from the
Mexicali Valley via the Rio Hardy (Alles 2006, p. 2; Cohen 2005, p. 1;
Cohen et al. 2001, p. 44). There is usually no surface connection from
the Cienega de Santa Clara, a large wetland in the upper Delta (Glenn
et al. 1992, p. 822). Agricultural return flow from the Mexicali
Valley, coupled with aquifer inflow, is a freshwater source that
ensures the continued survival of the clam.
The contribution of agricultural return flow is due to the recent
lining of the All-American Canal, which was completed in 2009. Prior to
lining, the All-American Canal was a source of recharge to the Mexicali
Valley aquifer (Calleros 1991, p. 837). Sixty percent of the annual
recharge to the subterranean aquifer of the Mexicali Valley is due to
subterranean flows (Calleros 1991, p. 829), largely from the All-
American Canal. Further reductions in freshwater inflow to the Delta
may occur in the near future (Martinez 2012).
Drought
At a regional scale, there is broad consensus among climate models
that the southwestern United States and northern Mexico will become
drier in the twenty-first century, and that the trend is already under
way (Martinez 2012; Seager et al. 2007, pp. 1181-1184) with increasing
aridity in the Southwest occurring as early as 2021-2040. Wetlands in
the southwestern United States and northern Mexico are predicted to be
particularly at risk of drying (Seager et al. 2007, pp. 1183-1184),
which has severe implications for aquatic ecosystems.
Numerous models also predict a decrease in annual precipitation in
the southwestern United States and northern Mexico (Solomon et al.
2009, p. 1707; Christensen et al. 2007, p. 888). Solomon et al. 2009
predicts precipitation in the southwestern United States and northern
Mexico will decrease by as much as 9 to 12 percent. Christensen et al.
(2007, p. 888) contend the projection of smaller warming over the
Pacific Ocean than over the continent is likely to induce a decrease in
annual precipitation in the southwestern United States and northern
Mexico. This decrease would modify freshwater and sediments vital to
the survival of the Colorado Delta clam.
Warmer water temperatures across temperate regions are also
predicted to expand the distribution of existing aquatic nonnative
species, which could affect this species (Martinez 2012; Mohseni et al.
2003, p. 389). There could be 31 percent more suitable habitat for
aquatic nonnative species, which are often tropical in origin and
better adapted to warmer water temperatures. This change in
temperatures could result in an expansion in the range of nonnative
aquatic species to the detriment of native species like the Colorado
Delta clam.
The Colorado Delta clam is currently threatened by the ongoing and
continuing reduction in freshwater input into the Gulf of California,
and the inadequacy of regulatory mechanisms to ensure freshwater input
(Martinez 2012). Freshwater is critical to the species' survival
because the species' life history is tied to the inflow of freshwater
to ensure the maintenance of its brackish water habitat. The Delta
continues to experience a reduction in freshwater inflow, which is
critical to the survival of the species because it depends on the
availability of brackish water. Furthermore, the available information
indicates that loss of freshwater will likely worsen in the near and
long-term future.
Conservation Status
This species exists in Mexico's Biosphere Reserve of the upper gulf
of California and the Colorado River Delta, which consists of 930,777
hectares (2.3 million acres). Monitoring of this species is being
conducted in connection with the Colorado River Delta-Sonoran Joint
Venture between Mexico and the United States (Zamora et al. 2007,
2002). A workshop was held in 2002 to determine conservation
[[Page 24630]]
priorities in the Colorado River Delta (Zamora-Arroyo et al. 2005, p.
3). As of 2002, NGOs in Mexico were working with the Government of
Mexico's Ministry of Environment and Natural Resources
(Secretar[iacute]a de Medio Ambiente y Recursos Naturales, or SEMARNAT)
to develop ways to protect Mexico's Colorado River riparian corridor
(Zamora-Arroyo et al. 2005, p. 4). SEMARNAT's purpose is to promote the
protection, restoration, and conservation of ecosystems and natural
resources. In 2007, SEMARNAT published a report on the goals and
priorities of the Conservation and Management Program for the Reserve
(SEMARNAT 2007, 323 pp.). It is not listed on any of the appendices of
CITES.
After reviewing the factors affecting this species, we found that
the species has experienced an approximate 90 percent reduction from
historical population size caused by the decrease in freshwater flow to
the estuary. The available evidence indicates that Colorado delta clam
is now restricted to one relict population at Isla Montague at the
mouth of the Colorado River delta. Since habitat containing the entire
range of the species may be rendered unsuitable within the future, we
find that threats are of high magnitude. Accordingly, we find the
Colorado delta clam is subject to high-magnitude imminent threats, and
we assign a LPN of 2 for this species.
Preclusion and Expeditious Progress
A listing proposal is precluded if the Service does not have
sufficient resources available to complete the proposal, because there
are competing demands for those resources, and the relative priority of
those competing demands is higher. Thus, in any given fiscal year (FY),
multiple factors dictate whether it will be possible to undertake work
on a listing proposal regulation or whether promulgation of such a
proposal is precluded by higher priority listing actions--(1) the
amount of resources available for completing the listing function; (2)
the estimated cost of completing the proposed listing, and (3) the
Service's workload and prioritization of the proposed listing in
relation to other actions.
In 2009, the responsibility for listing foreign species under the
Act was transferred from the Service's Division of Scientific
Authority, International Affairs Program, to the Endangered Species
Program. The Branch of Foreign Species (BFS) was established in June
2010 to specifically work on petitions and other actions under Section
4 of the Act for foreign species.
Section 4(b) of the Act states that the Service may make warranted-
but-precluded findings only if it can demonstrate that (1) An immediate
proposed rule is precluded by other pending proposals and that (2)
expeditious progress is being made on other listing actions. Preclusion
is a function of the listing priority of a species in relation to the
resources that are available and competing demands for those resources.
Thus, in any given fiscal year (FY), multiple factors dictate whether
it will be possible to undertake work on a proposed listing regulation
or whether promulgation of such a proposal is warranted-but-precluded
by higher priority listing actions.
The resources available for listing actions are determined through
the annual Congressional appropriations process. The appropriation for
the Listing Program is available to support work involving the
following listing actions: Proposed and final listing rules; 90-day and
12-month findings on petitions to add species to the Lists of
Endangered and Threatened Wildlife and Plants (Lists) or to change the
status of a species from threatened to endangered; annual
determinations on prior ``warranted-but-precluded'' petition findings
as required under section 4(b)(3)(C)(i) of the Act; critical habitat
petition findings; proposed and final rules designating critical
habitat; and litigation-related, administrative, and program-management
functions (including preparing and allocating budgets, responding to
Congressional and public inquiries, and conducting public outreach
regarding listing and critical habitat).
The work involved in preparing various listing documents can be
extensive and may include, but is not limited to: gathering and
assessing the best scientific and commercial data available and
conducting analyses used as the basis for our decisions; writing and
publishing documents; and obtaining, reviewing, and evaluating public
comments and peer review comments on proposed rules and incorporating
relevant information into final rules. The number of listing actions
that we can undertake in a given year also is influenced by the
complexity of those listing actions; that is, more complex actions
generally are more costly.
We cannot spend more than is appropriated for the Listing Program
without violating the Anti-Deficiency Act (see 31 U.S.C.
1341(a)(1)(A)). In addition, in FY 1998 and for each fiscal year since
then, Congress has placed a statutory cap on funds which may be
expended for the Listing Program, equal to the amount expressly
appropriated for that purpose in that fiscal year. This cap was
designed to prevent funds appropriated for other functions under the
Act (for example, recovery funds for removing species from the Lists),
or for other Service programs, from being used for Listing Program
actions (see House Report 105-163, 105th Congress, 1st Session, July 1,
1997).
Effective in FY 2012, the Service's Listing Program budget has
included a foreign species subcap to ensure that some funds are
available for other work in the Listing Program. Prior to FY 2012,
there was no distinction between listing domestic and foreign species.
To reasonably balance the foreign species listing commitment with other
listing program responsibility, Congress further refined the
appropriations of the Service to add ``and, of which not to exceed
$1,500,000 shall be used for implementing subsections (a), (b), (c),
and (e) of section 4 of the Endangered Species Act, as amended, for
species that are not indigenous to the United States * * *'' (See
Conference Report 112-331, 112th Congress, 1st session, December 15,
2011).
Thus, through the listing program cap and the foreign species
subcap, Congress has determined the amount of money available for
foreign species listing activities, including petition findings and
listing determinations. Therefore, the funds in the foreign species
subcap set the limits on our determinations of preclusion and
expeditious progress.
In FY 2012, expeditious progress is that amount of work that can be
achieved with $1,500,000, which is the amount of money that Congress
appropriated for the foreign species subcap within the Listing Program
budget (Conference Report 112-331). Funding in the amount of $1,500,000
is being used for work in the following categories: compliance with
court orders and court-approved settlement agreements requiring that
petition findings or listing determinations be completed by a specific
date; section 4 (of the Act) listing actions with absolute statutory
deadlines; essential litigation-related, administrative, and listing
program-management functions; and high-priority listing actions for
some of our candidate species. In addition, available staff resources
are also a factor in determining which high-priority species are
provided with funding.
Our expeditious progress also includes work on petition findings
and listing actions that we funded in FY 2010 and FY 2011 but have not
yet been completed to date. These actions are listed below. Actions in
the top section
[[Page 24631]]
of the table are being conducted under a deadline set by a court.
Actions in the bottom section of the table are being conducted to meet
statutory timelines, that is, timelines required under the Act.
BFS may, based on available staff resources, work on species
described within this ANOR with an LPN of 2 or 3, and when appropriate,
species with a lower priority if they overlap geographically or have
the same threats as the species with the high priority. Because the
actions below are either the subject of a court-approved settlement
agreement or subject to an absolute statutory deadline and, thus, are
higher priority than work on proposed listing determinations for the 20
species described above, publication of proposed rules for these 20
species is precluded.
Table 3--ESA Foreign Species Listing Actions Funded in Previous Fiscal
Years and FY 2013 But Not Yet Completed
------------------------------------------------------------------------
Species Action
------------------------------------------------------------------------
Actions Subject to Court Order/Settlement Agreement
------------------------------------------------------------------------
All have been completed (See Table 4 ...............................
below for these specific actions).
------------------------------------------------------------------------
Actions with Statutory Deadlines
------------------------------------------------------------------------
11 tarantula species................... 90-day petition finding.
15 bat species......................... 90-day petition finding.
Caribou, Peary and Dolphin and Union... 12-month petition finding.
Chimpanzee............................. 12-month petition finding.
Caiman, broad-snouted.................. Final downlisting
determination.
Ridgway's Hawk eagle................... 90-day petition finding.
Virgin Islands coqui................... 90-day petition finding.
Flores hawk-eagle...................... 90-day petition finding.
Emperor penguin........................ 90-day petition finding.
10 sturgeon species.................... 90-day petition finding.
------------------------------------------------------------------------
Despite the priorities that preclude publishing proposed listing
rules for these 20 species described in this notice, we are making
expeditious progress in adding to and removing species from the Federal
lists of threatened and endangered species. Our expeditious progress
for foreign species since publication of our previous Annual Notice of
Review, published on May 3, 2011 (76 FR 25150), to April 25, 2013,
includes preparing and publishing the following:
Table 4--ESA Foreign Species Listing Actions Published Since the Previous ANOR Was Published on May 3, 2011
----------------------------------------------------------------------------------------------------------------
Publication date Species Action FR pages
----------------------------------------------------------------------------------------------------------------
05/26/2011........................ Salmon-crested Final rule; 76 FR 30758-30780
cockatoo. threatened with
special rule.
06/02/2011........................ Straight-horned 90-day finding; 76 FR 31903-31906
markhor. initiation of
status review.
08/09/2011........................ Crimson shining Status review; not 76 FR 49202-49236
parrot. warranted.
08/09/2011........................ Philippine cockatoo.. Proposed rule; 76 FR 49202-49236
endangered.
08/09/2011........................ Yellow-crested Proposed rule; 76 FR 49202-49236
cockatoo. endangered.
08/09/2011........................ White cockatoo....... Proposed rule; 76 FR 49202-49236
threatened with
special rule.
08/11/2011........................ Six Eurasian birds... Final rule; 76 FR 50052-50080
endangered
throughout their
range.
09/01/2011........................ Chimpanzee........... Petition finding; 76 FR 54423-54425
initiation of
status review.
10/11/2011........................ Yellow-billed parrot. Proposed rule; 76 FR 62740-62754
threatened with
special rule.
10/12/2011........................ Two South American Status review; not 76 FR 63480-63508
parrot species. warranted.
01/05/2012........................ Broad-snouted caiman. Proposed rule; 77 FR 666-697
downlisting.
05/03/2012........................ Wood bison........... Final rule; 77 FR 26191-26212
downlisting.
05/23/2012........................ Morelet's crocodile.. Final rule; 77 FR 30820-30854
delisting.
07/06/2012........................ Military and great Proposed rule; 77 FR 40172-40219
green macaw. endangered.
07/06/2012........................ Hyacinth macaw....... Proposed rule; 77 FR 39965-39983
endangered.
07/06/2012........................ Scarlet macaw........ Proposed rule; 77 FR 40222-40247
endangered.
07/24/2012........................ Six Peruvian and Final rule; 77 FR 43433-43467
Bolivian bird endangered.
species.
08/07/2012........................ Markhor, straight- Proposed rule; 77 FR 47011-47027
horned. downlisting with
special rule.
09/19/2012........................ Scimitar-horned...... 90-day petition 77 FR 58084-58086
oryx, dama gazelle, finding.
and addax.
11/27/2012........................ Lion, African........ 90-day petition 77 FR 70727-70733
finding.
01/02/2013........................ Hummingbird, Honduran Proposed listing 78 FR 59-72
emerald. determination.
01/10/2013........................ Macaw, blue-throated. Proposed listing 78 FR 2239-2249
determination.
----------------------------------------------------------------------------------------------------------------
[[Page 24632]]
As explained above, a determination that listing is warranted-but-
precluded must also demonstrate that expeditious progress is being made
to add or remove qualified species to and from the Lists of Endangered
and Threatened Wildlife and Plants. As with our ``precluded'' finding,
expeditious progress in adding qualified species to the Lists is a
function of the resources available and the competing demands for those
funds. Given that limitation, we find that we are making progress in FY
2012 in the foreign species branch of the Listing Program.
We have endeavored to make our listing actions as efficient and
timely as possible, given the requirements of the relevant law and
regulations, and constraints relating to workload and personnel. We are
continually considering ways to streamline processes or achieve
economies of scale, such as by batching related actions together. Given
our limited budget for implementing section 4 of the Act, these actions
described above collectively constitute expeditious progress.
Our expeditious progress also includes work on pending listing
actions described above in our ``precluded finding,'' but for which
decisions had not been completed at the time of this publication.
Monitoring
Section 4(b)(3)(C)(iii) of the Act requires us to ``implement a
system to monitor effectively the status of all species'' for which we
have made a warranted-but-precluded 12-month finding, and to ``make
prompt use of the [emergency listing] authority [under section 4(b)(7)]
to prevent a significant risk to the well being of any such species.''
For foreign species, the Service's ability to gather information to
monitor species is limited. The Service welcomes all information
relevant to the status of these species, because we have no ability to
gather data in foreign countries directly and cannot compel another
country to provide information. Thus, this ANOR plays a critical role
in our monitoring efforts for foreign species.
With each ANOR, we request information on the status of the species
included in the notice. Information and comments on the annual findings
can be submitted at any time. We review all new information received
through this process as well as any other new information we obtain
using a variety of methods. We collect information directly from range
countries by correspondence, from peer-reviewed scientific literature,
unpublished literature, scientific meeting proceedings, and CITES
documents (including species proposals and reports from scientific
committees). We also obtain information through the permit application
processes under CITES, the Act, and the Wild Bird Conservation Act (16
U.S.C. 4901 et seq.). We also consult with the IUCN species specialist
groups and staff members of the U.S. CITES Scientific and Management
Authorities, and the Division of International Conservation; and we
attend scientific meetings, when possible, to obtain current status
information for relevant species. As previously stated, if we identify
any species for which emergency listing is appropriate, we will make
prompt use of the emergency listing authority under section 4(b)(7) of
the Act.
References Cited
A list of the references used to develop this notice is available
at https://www.regulations.gov at Docket No. FWS-R9-ES-2012-0044.
Authors
This Notice of Review was primarily authored by Amy Brisendine and
staff of the Branch of Foreign Species, Endangered Species Program,
U.S. Fish and Wildlife Service.
Authority
This Notice of Review is published under the authority of the
Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.).
Dated: April 8, 2013.
Rowan W. Gould,
Director, Fish and Wildlife Service.
[FR Doc. 2013-09504 Filed 4-24-13; 8:45 am]
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