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Crateromys schadenbergi 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Muridae

Scientific Name: Crateromys schadenbergi
Species Authority: (Meyer, 1895)
Common Name(s):
English Luzon Crateromys, Luzon Bushy-tailed Cloud Rat, Giant Bushy-tailed Cloud Rat
Taxonomic Notes: C. schadenbergi is an ecological and morphological equivalent of large-bodied tropical tree squirrels (Sciuridae), which do not occur in the Greater Luzon Faunal Region (Musser and Carleton 2005).

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,ii,iii)+2ab(i,ii,iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Heaney, L., Balete, D., Rosell-Ambal, G., Tabaranza, B., Ong, P., Ruedas, L. & Oliver, W.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Justification:
Listed as Endangered, because its extent of occurrence of less than 5,000 km2 and its area of occupancy is less than 500 km2, its distribution is severely fragmented, and there is a continuing decline in the extent and quality of its forest habitat.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to the Philippines where it is known only from the Greater Luzon Faunal Region, in the mountains of northern Luzon (southern to central part of the Central Cordillera), from Benguet, Ifugao and Mountain provinces (Heaney et al. 1998; Oliver et al. 1993; Sanborn 1952). It occurs at an altitude from 2,000 to 2,500 m (Rabor 1955; Sanborn 1952).
Countries occurrence:
Native:
Philippines
Additional data:
Lower elevation limit (metres):2000
Upper elevation limit (metres):2500
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This is a moderately widespread species in the pine forest of southern the Central Cordillera and apparently locally common in oak-pine forest, though it is rare elsewhere (Heaney et al. 1998). From talking to local hunters it is less common than Phloeomys pallidus, but apparently still moderately common.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is arboreal and occurs in oak-dominated forest where it builds stick-nests in tree crowns for shelter (Oliver et al. 1993; Heaney et al. 1998). It has been said that C. schadenbergi is associated with anthropogenic disturbance but evidence is scanty and anecdotal.
Systems:Terrestrial

Threats [top]

Major Threat(s): It is supposed that hunting is the greatest threat to this species. This species is hunted for food and for its fur to make hats, although this has not been seen for the past 5 years (L. Heaney pers. comm.). It is also negatively affected by habitat loss due to conversion of its habitat to vegetable farms.

Conservation Actions [top]

Conservation Actions: Stricter enforcement of hunting restrictions in combination with awareness raising may be most helpful. Parts of the species habitat are protected but their management needs to be strengthened.

Citation: Heaney, L., Balete, D., Rosell-Ambal, G., Tabaranza, B., Ong, P., Ruedas, L. & Oliver, W. 2008. Crateromys schadenbergi. The IUCN Red List of Threatened Species 2008: e.T5500A11233913. . Downloaded on 30 April 2017.
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