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Tamias umbrinus

Uinta Chipmunk

Order: Rodentia
Family: Sciuridae

Image of Tamias umbrinus
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Conservation Status: Least Concern. Although the ranges are fragmented, most of the populations seem to be stable.


Uinta chipmunks are common in coniferous forests, especially at elevations higher than 1,800 m. They readily climb trees and shrubs to forage for seeds, and often sleep in trees. Females use tree cavities, and sometimes even take over abandoned birds' nests, to raise their young. Uinta chipmunks are found in several widely-separated populations, isolated on mountaintops surrounded by desert habitat the chipmunks cannot cross. Over the next many thousands of years, these disjunct populations may evolve into separate species.

Sexual Dimorphism:
Females are significantly larger than males.

Length:
Average: 224.6 mm
Range: 210-240 mm

Weight:
Average: 59.3 g
Range: 51-74 g

References:

Allen, J.A., 1890.  Bulletin of the American Museum of Natural History, 3:96.

Links:

Mammal Species of the World

Distribution of Tamias umbrinus

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