AnAge entry for Tamias striatus

Classification (HAGRID: 03516)
Taxonomy	Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Rodentia Family: Sciuridae Genus: Tamias
Species	Tamias striatus
Common name	Eastern chipmunk
Lifespan, ageing, and relevant traits
Maximum longevity	9.5 years (captivity)
Source	ref. 671
Sample size	small
Data quality	acceptable
Observations	These animals have been known to live at least 2-3 years in the wild [0434]. One specimen lived 9.5 years in captivity. Another specimen of unknown sex lived over 9 years at London Zoo but could have been older because the exact date of birth is not known [0671].
Life history traits (averages)
Female sexual maturity	187 days
Male sexual maturity	228 days
Gestation	31 days
Weaning	36 days
Litter size	5 (viviparous)
Litters per year	1.5
Inter-litter interval
Weight at birth	3.4 g
Weight at weaning	50.5 g
Adult weight	96 g
Postnatal growth rate
Maximum longevity residual	96 %
Metabolism
Typical body temperature	311ºK or 38.2ºC or 100.8ºF
Basal metabolic rate	0.8130 W
Body mass	89.6 g
Metabolic rate per body mass	0.009074 W/g
References
[0776] Seluanov et al. (2007), Telomerase activity coevolves with body mass not lifespan, PubMed [0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World [0036] Savage et al. (2004), The predominance of quarter-power scaling in biology [0420] White and Seymour (2003), Mammalian basal metabolic rate is proportional to body mass2/3, PubMed [0610] Ernest (2003), Life history characteristics of placental non-volant mammals [0434] Ronald Nowak (1999), Walker's Mammals of the World [0441] William Burt et al. (1998), A Field Guide to Mammals [0676] Purvis and Harvey (1995), Mammal life-history evolution: a comparative test of Charnov’s model [0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data [0542] Bernhard Grzimek (1990), Grzimek's Encyclopedia of Mammals [0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction [0436] Cutler (1979), Evolution of human longevity: a critical overview, PubMed
External resources
Integrated Taxonomic Information System	ITIS 180207
Animal Diversity Web	ADW account
Encyclopedia of Life	Search EOL
Genome Project	Search NCBI
Entrez	Search all databases Entrez Taxonomy search
Ageing literature	Search Google Scholar Search PubMed Search Scirus
Images	Google Image search
Internet	Search Google

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