Thomasomys hylophilus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Thomasomys hylophilus
Species Authority: Osgood, 1912
Common Name(s):
English Woodland Oldfield Mouse

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Gómez-Laverde, M. & Pacheco, V.
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 5,000 km² and its distribution is severely fragmented, and there is a continuing decline in the extent and quality of its forest habitat. This species occurs in an area which is politically unstable and where illicit crops and guerilla warfare have unknown effects.

Geographic Range [top]

Range Description: This species occurs in the Paramo de Tama in the extreme north of Cordillera Oriental, east Colombia, and the extreme south of Cordillera de Mérida, west Venezuela. It occurs above 2,000 m. The known extent of occurrence is approximately 3,300 km²; however, the species is likely to occur much more widely.
Colombia; Venezuela, Bolivarian Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The species is rare.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This is a nocturnal, terrestrial and omnivorous species. It is associated with moist habitats and cloud forest.
Systems: Terrestrial

Threats [top]

Major Threat(s): Although the species occurs in a national park the area is not well protected and is subject to deforestation, illicit crops (coca plantations), border disputes and guerilla activities.

Conservation Actions [top]

Conservation Actions: It occurs in a Tama National Park, Venezuela and Colombia border.

Citation: Gómez-Laverde, M. & Pacheco, V. 2008. Thomasomys hylophilus. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 29 August 2015.
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