AnAge entry for Xerospermophilus tereticaudus
Classification (HAGRID: 03191)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Rodentia
Family: Sciuridae
Genus: Xerospermophilus
- Species
- Xerospermophilus tereticaudus
- Common name
- Round-tailed ground squirrel
- Synonyms
- Spermophilus tereticaudus
Lifespan, ageing, and relevant traits
- Maximum longevity
- 8.9 years (captivity)
- Source
- ref. 671
- Sample size
- Tiny
- Data quality
- Acceptable
- Observations
One wild born specimen was about 8.9 years of age when it died in captivity [0671].
Life history traits (averages)
- Female sexual maturity
- 325 days
- Male sexual maturity
- 325 days
- Gestation
- 28 days
- Weaning
- 39 days
- Litter size
- 5.4 (viviparous)
- Litters per year
- 1
- Inter-litter interval
- Weight at birth
- 3.9 g
- Weight at weaning
- 75 g
- Adult weight
- 163.3 g
- Postnatal growth rate
- Maximum longevity residual
- 83%
Metabolism
- Typical body temperature
- 309ºK or 36.3ºC or 97.3ºF
- Basal metabolic rate
- 0.5010 W
- Body mass
- 125.1 g
- Metabolic rate per body mass
- 0.004005 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 System
- ITIS 930313
- Animal Diversity Web
- ADW account (if available)
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 99860
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google