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Tamias alpinus

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Ordo: Rodentia
Subordo: Sciuromorpha
Familia: Sciuridae
Subfamilia: Xerinae
Tribus: Marmotini
Genus: Tamias
Species: Tamias alpinus

Name

Tamias alpinus Merriam, 1893

References

* Tamias alpinus on Mammal Species of the World.
* Mammal Species of the World: A Taxonomic and Geographic Reference, 2 Volume Set edited by Don E. Wilson, DeeAnn M. Reeder

Vernacular names
English: Alpine Chipmunk

The alpine chipmunk (Neotamias alpinus) is a species of chipmunk native to the high elevations of the Sierra Nevada of California[2]. They have been observed at altitudes from around 2,300 meters (7,500 ft)[3] to 3,900 meters (12,800 ft)[4], though they rarely occur below 2,500 meters (8,200 ft)[5].

Description

They have a brown forehead with three white stripes on their cheeks and four on their backs. They weigh around 80 grams.

Behavior

The alpine chipmunk feed on the seeds of sedges, grasses, and pines. 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.

References


1. ^ Linzey, A. V. & Hammerson, G. (2008). Tamias alpinus. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 8 January 2009.
2. ^ Hall, E.R. (1981). The Mammals of North America (2nd edition ed.). New York: John Wiley & Sons.
3. ^ Johnson, D.H. (1943). Systematic review of the chipmunks (genus Eutamias) of California. University of California Publications in Zoology.
4. ^ Swarth, H.S. (1919). Some Sierran chipmunks. Sierra Club Bulletin.
5. ^ 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.

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Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License