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AnAge entry for Spermophilus tridecemlineatus

Classification (HAGRID: 03504)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Sciuridae
                    Genus: Spermophilus
SpeciesSpermophilus tridecemlineatus
Common nameThirteen-lined ground squirrel

Lifespan, ageing, and relevant traits

Maximum longevity7.9 years (captivity)
Sourceref. 671
Sample sizesmall
Data qualityacceptable
Observations

One specimen lived 7.9 years in captivity [0671].

Life history traits (averages)

Female sexual maturity354 days
Male sexual maturity225 days
Gestation28 days
Weaning33 days
Litter size7 (viviparous)
Litters per year1.2
Inter-litter interval
Weight at birth3.24 g
Weight at weaning16 g
Adult weight172.7 g
Postnatal growth rate
Maximum longevity residual73 %

Metabolism

Typical body temperature309ºK or 35.7ºC or 96.3ºF
Basal metabolic rate0.9830 W
Body mass198.4 g
Metabolic rate per body mass0.004955 W/g

References
[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
[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

External resources

Integrated Taxonomic Information SystemITIS 180162
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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