Overview

Distribution

Range Description

This species is restricted to the mountains of south-east Papua New Guinea, where it is found at altitudes above 1,300 m asl. It may range more widely than currently known (e.g., it is possibly present on Mount Simpson). Its range is suspected to be very fragmented.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Animals have been recorded in primary montane tropical moist forest. Little is known about the natural history of this species.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(iii)

Version
3.1

Year Assessed
2008

Assessor/s
Leary, T., Singadan, R., Menzies, J., Helgen, K., Wright, D., Aplin, K. & Dickman, C.

Reviewer/s
Lamoreux, J. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)

Contributor/s

Justification
Listed as Endangered because its extent of occurrence is less than 5,000 km2, its distribution is suspected to be severely fragmented, and there is continuing decline in the extent and quality of its habitat. This species is known only from a few localities in a small area, and not found in other areas which have been surveyed.

History
  • 1996
    Endangered
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Population

Population
In general it is not common. It may be locally abundant at certain sites but absent from others. Around 15 specimens have been collected.

Population Trend
Decreasing
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Threats

Major Threats
The forest within which this species lives has been degraded in parts of its range. It is potentially threatened by continuing loss of forest habitat by an increase in the human population density of the area (i.e., rural gardens appear to be pushed further up the slopes by expanding oil palm plantations lower down). There may be competition with Rattus rattus at the lower edges of its elevational range.
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Management

Conservation Actions

Conservation Actions
It is not known if the species is present in any protected areas. Further studies into the distribution, natural history, habitat status, and threats to the species are needed. Important areas of habitat for this species should be identified and protected.
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Wikipedia

Van Deusen's rat

Van Deusen's Rat (Rattus vandeuseni) is a species of rodent in the family Muridae. It is endemic to Papua New Guinea.

References[edit]


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