AnAge entry for Urocitellus richardsonii

Classification (HAGRID: 02823)

Taxonomy: Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Sciuridae
                    Genus: Urocitellus
Species: Urocitellus richardsonii
Common name: Richardson's ground squirrel
Synonyms: Spermophilus richardsonii

Maximum longevity: Not yet established
Observations: They are sexually mature at emergence from their first hibernation. In the wild, females have been known to live more than 6 years, though males do not appear to live more than 4 years [0634].

: No information is available on life history. Please contact us if you wish to suggest or contribute data.

[1143] Nussey et al. (2013), Senescence in natural populations of animals: widespread evidence and its implications for bio-gerontology (PubMed)
[1032] McNab (2008), An analysis of the factors that influence the level and scaling of mammalian BMR (PubMed)
[0036] Savage et al. (2004), The predominance of quarter-power scaling in biology
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[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
[0634] Michener and Koeppl (1985), Spermophilus richardsonii
[0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves