AnAge Home Help Human Ageing Genomic Resources Citation

AnAge entry for Spermophilus tereticaudus

Classification (HAGRID: 03503)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Sciuridae
                    Genus: Spermophilus
SpeciesSpermophilus tereticaudus
Common nameRound-tailed ground squirrel

Lifespan, ageing, and relevant traits

Maximum longevity8.9 years (captivity)
Sourceref. 671
Sample sizetiny
Data qualityacceptable
Observations

One wild born specimen was about 8.9 years of age when it died in captivity [0671].

Life history traits (averages)

Female sexual maturity325 days
Male sexual maturity325 days
Gestation28 days
Weaning39 days
Litter size5.4 (viviparous)
Litters per year1
Inter-litter interval
Weight at birth3.9 g
Weight at weaning75 g
Adult weight163.3 g
Postnatal growth rate
Maximum longevity residual83 %

Metabolism

Typical body temperature309ºK or 36.3ºC or 97.3ºF
Basal metabolic rate0.5010 W
Body mass125.1 g
Metabolic rate per body mass0.004005 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
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0538] Don Wilson and Sue Ruff (1999), The Smithsonian Book of North American Mammals
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[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 180160
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
Entrez

Search all databases

Entrez Taxonomy search

Ageing literature

Search Google Scholar

Search PubMed

Search Scirus

ImagesGoogle Image search
InternetSearch Google

AnAge database at the Human Ageing Genomic Resources.

If you find any missing or incorrect data, please contact us.