Chilomys instans

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	RODENTIA	CRICETIDAE

Scientific Name:

Chilomys instans

Species Authority:

(Thomas, 1895)

Common Name/s:

English

–

Colombian Forest Mouse

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Aguilera, M., Gómez-Laverde, M., Tirira, D., Pacheco, V. & Rivas, B.

Evaluator/s:

Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)

Justification:
This species is listed as Least Concern in view of its wide distribution, presumed large population, it occurs in a number of protected areas, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

History:

1996

–

Lower Risk/least concern (Baillie and Groombridge 1996)

Geographic Range [top]

Range Description:	This species occurs in the north Andes, from central Ecuador (Musser et al., 1998), through central and north Colombia, to west Venezuela (Handley, 1976; Linares, 1998; Musser and Carleton, 2005). It has an altitudinal range of 1,100 to 3,700 m.
Countries:	Native: Colombia; Ecuador; Venezuela
Range Map:	(click map to view full version)

Population [top]

Population:	In Ecuador this rodent is uncommon (Tirira, in prep.). In Venezuela it is rare (Linares, 1998).
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	This rodent is poorly known. It is restricted to moist humid cloud forest and co-occurs with the larger Thomasomys hylophilus, which it resembles (Aagaard, 1982). It is terrestrial, omnivorous, and nocturnal.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	No major threats although deforestation is affecting the species in some parts of its range.

Major Threat(s):

No major threats although deforestation is affecting the species in some parts of its range.

Conservation Actions [top]

Conservation Actions:	This species occurs in a number of protected areas throughout its range. Further research is needed to determinate its taxonomic status.

Conservation Actions:

This species occurs in a number of protected areas throughout its range. Further research is needed to determinate its taxonomic status.

Citation:	Aguilera, M., Gómez-Laverde, M., Tirira, D., Pacheco, V. & Rivas, B. 2008. Chilomys instans. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 02 December 2008.
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