Alpine chipmunk
| Alpine chipmunk | |
|---|---|
| Conservation status | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Sciuridae |
| Genus: | Tamias |
| Species: | T. alpinus |
| Binomial name | |
| Tamias alpinus Merriam, 1893 | |
| Synonyms | |
|
Neotamias alpinus Merriam, 1893 | |
The alpine chipmunk (Tamias alpinus) is a species of chipmunk native to the high elevations of the Sierra Nevada of California.[2] [3]
Description
They have a brown forehead with three white stripes on their cheeks and four on their backs. They weigh around 80 grams.
Distribution
Alpine chipmunks only live in high Sierra Nevada, from Yosemite National Park in the north, to Olancha Peak in the south. They have been observed at altitudes from around 2,300 meters (7,500 ft)[4] to 3,900 meters (12,800 ft),[5] though they rarely occur below 2,500 meters (8,200 ft).
Behavior and ecology
The alpine chipmunk feed on the seeds of sedges, grasses, and pines in their namesake alpine zone. They generally eat their food on the ground. They do not generally require a source of water other than food, but will use it given the opportunity.
They nest in crevices between rocks, taking advantage of the micro-climatic conditions (i.e. higher temperatures) that exist there. Their young are born in June and July, in litters of 3-6.
They are considered diurnal, though they exhibit some nocturnal activity during the summer. They hibernate from November through April, frequently awakening to eat.[4]
References
- ↑ Linzey, A. V. & Hammerson, G. (2008). Tamias alpinus. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 8 January 2009.
- ↑ Hall, E.R. (1981). The Mammals of North America (2nd edition ed.). New York: John Wiley & Sons.
- ↑ Grinnell, J.; T.I. Storer (1924). Animal life in the Yosemite: an account of the mammals, birds, reptiles and amphibians of a cross-section of the Sierra Nevada. University of California Press.
- ↑ 4.0 4.1 Johnson, D.H. (1943). Systematic review of the chipmunks (genus Eutamias) of California. University of California Publications in Zoology.
- ↑ Swarth, H.S. (1919). Some Sierran chipmunks. Sierra Club Bulletin.
External links
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Wikispecies has information related to: Tamias alpinus |
- Hole, Jr., Robert. "Alpine Chipmunk Tamias alpinus". Encyclopedia of Life Field Guides. Retrieved 7 December 2012.