|Scientific Name:||Tamias striatus|
|Species Authority:||(Linnaeus, 1758)|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor(s):||Linzey, A.V. & NatureServe (Hammerson, G.)|
|Reviewer(s):||Amori, G. (Small Nonvolant Mammal Red List Authority) & Chanson, J. (Global Mammal Assessment Team)|
Listed as Least Concern because it is very widespread, abundant, and there are no major threats.
|Range Description:||This species is widely distributed throughout the eastern United States and adjoining Canada, from southeast Saskatchewan to Nova Scotia, south to western Oklahoma and eastern Louisiana (in the west) and to coastal Virginia (in the east). It is absent from peninsular Florida and the coastal plain between Florida and northern North Carolina. It is introduced to Newfoundland.|
Native:Canada (Manitoba, New Brunswick, Newfoundland I, Nova Scotia, Ontario, Prince Edward I., Québec); United States (Alabama, Arkansas, Connecticut, Delaware, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Vermont, Virginia, West Virginia, Wisconsin)
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is abundant. Depending on the season, population densities may vary from less than one to 15 per acre (Yerger 1953), and sometimes up to 30 per acre.|
|Habitat and Ecology:||
It prefers deciduous woodlands with ample cover, such as brush piles or logs, rocky forested slopes, ravines. Also found in brushlands and hedgerows. Commonly climbs trees and shrubs. Burrows often open at edge or rock, near base of tree, or under the edge of a building. Nest is generally constructed below ground in an extensive burrow system.
Breeding period is from mid-March to early April. A second breeding period occurs from mid-July to mid-August involving young of the previous year. Gestation lasts 31 days. Litter size is 4-15 (3-5 most often). One to two litters per year. Commonly lives 2-3 years, sometimes 5-6 years.
Home range is less than one hectare, typically 0.08-0.60 ha, largest in early summer and early fall; core area of home range is defended against conspecific neighbours; largest home ranges are those of breeding males; low water availability may result in increased home range size. Individuals may make long movements outside their usual range; non dispersing individuals have lifetime home range lengths of up to at least 0.5 km, and dispersal movements may extend to at least 0.9 km (Roberts 1976).
This species utilizes a wide variety of seeds, fruits, and nuts, some mushrooms and insects. Active during the day. In winter, becomes torpid, with frequent arousals.
|Major Threat(s):||There are no major threats to this species.|
|Conservation Actions:||The range of this species includes several protected areas.|
Roberts, E. F. 1976. Patterns of dispersal and other movements in a population of the eastern chipmunk, Tamias striatus. Thesis, University of Massachusetts.
Snyder, D. P. 1982. Tamias striatus. Mammalian Species 168: 1-8.
Wilson, D. E. and Ruff, S. 1999. The Smithsonian Book of North American Mammals. Smithsonian Institution Press, Washington, DC, USA.
Yerger, R. W. 1953. Home range, territoriality and populations of the chipmunk in central New York. Journal of Mammalogy 34(4): 448-458.
|Citation:||Linzey, A.V. & NatureServe (Hammerson, G.) 2008. Tamias striatus. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 23 July 2014.|
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