Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Muridae

Scientific Name: Leopoldamys siporanus
Species Authority: (Thomas, 1895)
Common Name(s):
English Mentawai Archipelago Leopoldamys, Mentawai Long-tailed Giant Rat

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(ii,iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Ruedas, L., Lunde, D., Musser, G. & Aplin, K.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Listed as Endangered because its extent of occurrence is not much greater than 5,000 km2, all individuals are in fewer than five locations, and there is continuing decline in the extent and quality of its forest habitat.
Previously published Red List assessments:
1996 Vulnerable (VU)

Geographic Range [top]

Range Description: This species is endemic to the Mentawai Archipelago Indonesia (Musser and Carleton 2005). It is found on the islands of North Pagai, South Pagai, Sipora, and Siberut (Musser and Newcomb 1983).
Countries occurrence:
Indonesia (Sumatera)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It was formerly common, but the population status is now unclear.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It is an arboreal species that needs large trees in tropical lowland rain forest. It seems probable that only small patches of suitable habitat remain on these islands.
Systems: Terrestrial

Threats [top]

Major Threat(s): The habitat of this species has been extensively deforested through extraction of timber and firewood and conversion to agricultural land, much of the area is now mixed fruit plantations.

Conservation Actions [top]

Conservation Actions: It is possibly present within Siberut National Park, however, about 40% of suitable habitat at this site has been disturbed (A. Suyanto pers. comm.). Further surveys are needed to determine the current status of this species.

Citation: Ruedas, L., Lunde, D., Musser, G. & Aplin, K. 2008. Leopoldamys siporanus. The IUCN Red List of Threatened Species 2008: e.T11521A3291768. . Downloaded on 10 October 2015.
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