AnAge entry for Sorex cinereus

Classification (HAGRID: 03548)
Taxonomy	Kingdom: Animalia Phylum: Chordata Class: Mammalia (Taxon entry) Order: Soricomorpha Family: Soricidae Genus: Sorex
Species	Sorex cinereus
Common name	Cinereus shrew
Lifespan, ageing, and relevant traits
Maximum longevity	Not yet established
Observations	Little is known about the longevity of these animals but they have been estimated to live up to 1.8 years [0610].
Life history traits (averages)
Female sexual maturity	154 days
Male sexual maturity
Gestation	19 days
Weaning	23 days
Litter size	6.22 (viviparous)
Litters per year
Inter-litter interval
Weight at birth	0.28 g
Weight at weaning	3.5 g
Adult weight	4.3 g
Postnatal growth rate	0.216 days^-1 (from Gompertz function)
Metabolism
Typical body temperature	312ºK or 38.4ºC or 101.1ºF
Basal metabolic rate	0.2380 W
Body mass	5.2 g
Metabolic rate per body mass	0.045769 W/g
References
[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 [0538] Don Wilson and Sue Ruff (1999), The Smithsonian Book of North American Mammals [0678] Symonds (1999), Life histories of the Insectivora: the role of phylogeny, metabolism, and sex differences [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 [0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves
External resources
Integrated Taxonomic Information System	ITIS 179929
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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