Thomasomys incanus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Cricetidae

Scientific Name: Thomasomys incanus
Species Authority: (Thomas, 1894)
Common Name(s):
English Inca Oldfield Mouse
Taxonomic Notes: This species is in revision (V. Pacheco pers. comm.).

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(i,ii,iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Pacheco, V. & Vargas, J.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is listed as Vulnerable because its extent of occurrence is less than 20,000 km², its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat.
Previously published Red List assessments:
1996 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: This species occurs in the Andes of central Peru (Musser and Carleton, 2005). It has an altitudinal range of 2,550 to 3,250 m (V. Pacheco pers. comm.).
Countries occurrence:
Lower elevation limit (metres): 2550
Upper elevation limit (metres): 3250
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is locally common to rare (V. Pacheco pers. comm.).
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This rodent occurs in montane forest. It is terrestrial and nocturnal (V. Pacheco pers. comm.).
Systems: Terrestrial

Threats [top]

Major Threat(s): The major threats are deforestation, fragmentation, and agriculture.

Conservation Actions [top]

Conservation Actions: This species has been recorded in Yanachala Chemillén National Park (V. Pacheco pers. comm.).

Citation: Pacheco, V. & Vargas, J. 2008. Thomasomys incanus. The IUCN Red List of Threatened Species 2008: e.T21778A9309747. . Downloaded on 26 November 2015.
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