Overview

Distribution

Range Description

Accipiter brachyurus is endemic to New Britain and New Ireland in Papua New Guinea. There are only a handful of historic or recent records on New Britain2,3,4,5,6. It has recently been discovered on New Ireland where it was the commonest (although not very common) raptor in the montane forests1. Its true distribution is clouded by identification problems with the other Accipter species on New Britain, but it is clearly a localised species occurring at low population-densities.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a very poorly-known forest species. Although there are some lowland records2,3,4,5, most records are from montane forest, including records at 1,200-1,800 m on New Ireland1,4,6. It is probably excluded from degraded forest habitats by the common A. novaehollandiae and it may be less common in the lowlands through competition with the similar A. luteoschistaceus.

Systems
  • Terrestrial
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
C1+2a(i)

Version
3.1

Year Assessed
2008

Assessor/s
BirdLife International

Reviewer/s
Mahood, S., Butchart, S.

Contributor/s
Bishop, K., Beehler, B., Diamond, J., Dutson, G., Burrows, I.

Justification
This species is judged to have very small subpopulations on two islands and to be declining in the lowlands through forest clearance and degradation, leading to classification as Vulnerable. However, this is based on poor data and further fieldwork may reveal that it is more common in montane forest than currently thought and may therefore require downlisting to Near Threatened.

History
  • 2004
    Vulnerable
  • 2000
    Vulnerable
  • 1996
    Vulnerable
  • 1994
    Vulnerable
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Population

Population
Buchanan et al. in press.

Population Trend
Decreasing
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Threats

Threats

Major Threats
Lowland populations are threatened by the extensive logging of lowland forests, often with conversion to oil-palm plantations, across its range. On New Britain, lowland forest clearance for conversion to oil palm plantations has been intense in recent decades and the island accounts for approximately half of Papua New Guinea's timber exports7. On that island nearly 20% of habitat suitable for this species has been cleared in the last 15 years and this trend is ongoing7. The montane populations are under no apparent threats, but it remains a notably rare species.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
Conservation Actions Underway
CITES Appendix II. No conservation measures are known to have been taken.

Conservation Actions Proposed
Survey to assess population size. Determine best survey techniques. Survey status in logged forest. Ascertain altitudinal range. Search for presence in northern New Ireland. Employ local hunters to find nests for intensive observation. Map remaining forest and logging concessions across New Britain and New Ireland. Research identification through examination of museum specimens. Lobby for large community-based conservation areas.

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Wikipedia

New Britain Sparrowhawk

The New Britain Sparrowhawk (Accipiter brachyurus) is a threatened species of bird of prey. It is endemic to two Papua New Guinea islands, New Britain and New Ireland. Even in 1934 Ernst Mayr, in his survey of mountain bird life during the Whitney South Sea Expedition, found the New Britain Sparrowhawk to be very rare. [2].

Contents

Characteristics

These sparrowhawks are grey with a white underbelly and orange accents on the neck. They are often characterized by their large feet. They are the only hawk in New Britain or the Solomon Islands that has a middle toe that is longer than the rest.[2] The feet of the New Britain Sparrowhawks are pale yellow. These small birds only grow to be 27–34 cm long.

Ecology

This species lives in tropical to subtropical, moist montane forest. The altitudes reach 1,200 to 1,800 m. New Britain Sparrowhawks nest like other birds, where they raise their young. Very little is known about this species because it is so rare and the areas in which it lives have not been thoroughly studied [1].

Conservation

it is estimated that the population is only between 1,000 and 2,499 individuals [2]. The main threat to the continued existence of this species is habitat destruction which has led to the birds' decline in lowland forests. The clearing of forest on the small islands leaves the species with less habitat, and a far less safe environment – leading to their vulnerability. No conservation measures are known to have been taken; however it has been proposed that surveys be made to assess population size and observe nests, as well as to map the remaining forest. There are also plans to lobby for large community-based conservation areas [3].

References

  1. ^ BirdLife International (2008). Accipiter brachyurus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 19 February 2009.
  2. ^ a b Mayr, E.: "Birds Collected During the Whitney South Sea Expedition. XXVIII", page 1. American Museum of Novitates, 1934
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

 

Source: Wikipedia

Unreviewed

Article rating from 0 people

Average rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!