Overview

Distribution

Range Description

This species is endemic to Goodenough Island, Papua New Guinea (extent of occurrence is <100 km²). It ranges between 1,000 and 1,800 m asl.
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Geographic Range

New Guinea; off the southeastern Papau coast of New Guinea on the Goodenough Islands.

Biogeographic Regions: australian (Native )

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Physical Description

Morphology

Physical Description

The fur of black forest-wallabies is blackish on the dorsal part of their body and dark brown on the ventral side. The tail is haired except for the terminal half, where it is naked. The wallabie's nose is large, broad, and naked and its ears are small and rounded. The hind limbs and feet are small, while the front limbs are well-developed and robust. Unlike most other wallaby species, the black forest-wallaby is not specialized for jumping. Females of the species have four mammae and a pouch that opens forward. The head and body length is between 28.9 and 39.2 inches. The tail length is usually between 11.2 and 15.6 inches and an adult can weigh between 1.8 and 2.3 kg.

Range mass: 1.8 to 2.3 kg.

Other Physical Features: endothermic ; homoiothermic; bilateral symmetry

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is restricted to montane tropical oak forests with little herbaceous growth, but with a ground cover thick with ferns, mosses, and lichens. The female is believed to give birth to a single young. The species comes down seasonally to the gullies, and is then susceptible to hunting (D. Mitchell pers. comm.).

Systems
  • Terrestrial
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Habitat

These wallabies generally have a fairly restricted range, but within their area they occupy a wide variety of niches including the moist forests of lowland and montane rain forest and some grasslands. On Goodenough Island, they live in oak forests at medium elevations in the mountains but may also come down to sea level. The general altitudinal range is between 900 and 1,800 m. above sea level.

Terrestrial Biomes: rainforest

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Trophic Strategy

Food Habits

Dorcopsis atrata is an herbivorous browser feeding mostly on soft vegetation, including leaves, roots, grasses and fruit. The incisors are used to pick up food, then it is then transferred to the hands so it can be processed by the premolars on the side of the mouth.

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Life History and Behavior

Reproduction

Reproduction

Females usually give birth to one young at a time. They also have four mammae and a well-developed pouch.

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
CR
Critically Endangered

Red List Criteria
B1ab(i,iii)

Version
3.1

Year Assessed
2008

Assessor/s
Leary, T., Wright, D., Hamilton, S., Singadan, R., Menzies, J., Bonaccorso, F., Helgen, K., Seri, L., Allison, A. & James, R.

Reviewer/s
Lamoreux, J. & Hilton-Taylor, C. (Global Mammal Assessment Team)

Justification
Listed as Critically Endangered because the extent of occurrence is less than 100 km², it is one location, and there is continuing decline due to hunting and habitat loss.

History
  • 1996
    Endangered
  • 1994
    Vulnerable
    (Groombridge 1994)
  • 1990
    Rare
    (IUCN 1990)
  • 1988
    Rare
    (IUCN Conservation Monitoring Centre 1988)
  • 1986
    Rare
    (IUCN Conservation Monitoring Centre 1986)
  • 1982
    Rare
    (Thornback and Jenkins 1982)
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Conservation Status

These wallabies are susceptible to hunting and a food source to native peoples. Because of their restricted range, they are also very susceptible to habitat destruction. Due to these factors, they are considered a threatened species and are classified as rare.

US Federal List: no special status

IUCN Red List of Threatened Species: critically endangered

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Population

Population
It is common within suitable habitat.

Population Trend
Decreasing
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Threats

Threats

Major Threats
It has been recorded as being hunted by local people using dogs, although Flannery (1995) suggests that hunting pressure may be decreasing. The forest habitat of this species is being cleared by slash-and-burn agriculture and is rapidly being converted to grassland.
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Management

Conservation Actions

Conservation Actions
It is not known if this species is present in any protected areas. Protection of areas of suitable habitat and regulation of hunting activities may be beneficial to the conservation of this species.
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Relevance to Humans and Ecosystems

Benefits

Economic Importance for Humans: Positive

Black forest-wallabies are considered a valuable food animal and are eaten by natives of New Guinea islands.

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Wikipedia

Black dorcopsis

The black dorcopsis or black forest wallaby (Dorcopsis atrata) is a species of marsupial in the Macropodidae family. It is endemic to Papua New Guinea. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.[2]

References

  1. ^ Groves, C. (2005). Wilson, D. E.; Reeder, D. M. eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 61. OCLC 62265494. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3. 
  2. ^ a b Leary, T., Wright, D., Hamilton, S., Singadan, R., Menzies, J., Bonaccorso, F., Helgen, K., Seri, L., Allison, A. & James, R. (2008). Dorcopsis atrata. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 28 December 2008. Database entry includes justification for why this species is listed as critically endangered


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