Chaetodipus formosus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Heteromyidae

Scientific Name: Chaetodipus formosus (Merriam, 1889)
Common Name(s):
English Long-tailed Pocket Mouse

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-02-01
Assessor(s): Álvarez-Castañeda, S.T., Castro-Arellano, I. & Lacher, T.
Reviewer(s): Amori, G.
Contributor(s): Linzey, A. & Timm, R.
This species is listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is found in western North America, mostly within the Great Basin and Mojave and Colorado deserts and including parts of Nevada, Utah, Arizona, and California (United States), and the eastern coastal plain of Baja California (Mexico).
Countries occurrence:
Mexico (Baja California); United States (Arizona, California, Nevada, Utah)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is common in the United States. However, in Baja California, Mexico, this species is not very common. It has been found at densities of up to 30 mice/hectare in suitable habitat.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species usually occurs in rocky habitats (lava beds, pebbly soils, gravel surfaces of stream beds, and among large boulders. It may occur in sandy soils along creek beds and under shrubs. Vegetation includes various desert shrub species.
Generation Length (years):2-3

Threats [top]

Major Threat(s): In Mexico, this species is found where there is a lot of infrastructure for tourism, which may threaten populations in this region.

Conservation Actions [top]

Conservation Actions: No known conservation measures exist for this species. There are protected areas within its range.

Citation: Álvarez-Castañeda, S.T., Castro-Arellano, I. & Lacher, T. 2016. Chaetodipus formosus. The IUCN Red List of Threatened Species 2016: e.T4331A22226290. . Downloaded on 22 July 2018.
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