AnAge entry for Sorex vagrans
Classification (HAGRID: 03233)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Soricomorpha
Family: Soricidae
Genus: Sorex
- Species
- Sorex vagrans
- Common name
- Vagrant shrew
Lifespan, ageing, and relevant traits
- Maximum longevity
- Not yet established
- Observations
At high altitudes these animals may be semelparous, meaning they reproduce only once in their lifetime [0469]. It has been estimated that these animals live up to 1.3 years in the wild [0542], or maybe up to 1.5 years [0610]. Due to a lack of detailed studies, maximum longevity could be underestimated and is considered unknown.
Life history traits (averages)
- Female sexual maturity
- 417 days
- Male sexual maturity
- Gestation
- 20 days
- Weaning
- 30 days
- Litter size
- 5 (viviparous)
- Litters per year
- 2.5
- Inter-litter interval
- Weight at birth
- 0.5 g
- Weight at weaning
- 5.5 g
- Adult weight
- 7 g
- Postnatal growth rate
- 0.159 days-1 (from Gompertz function)
Metabolism
- Typical body temperature
- 311ºK or 38.0ºC or 100.4ºF
- Basal metabolic rate
- 0.1570 W
- Body mass
- 5.2 g
- Metabolic rate per body mass
- 0.030192 W/g
References
- [1308] Myhrvold et al. (2015), An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles
- [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
- [0441] William Burt et al. (1998), A Field Guide to 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
- [0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves
- [0469] Diamond (1982), Big-bang reproduction and ageing in male marsupial mice (PubMed)
External Resources
- Integrated Taxonomic Information System
- ITIS 179932
- Animal Diversity Web
- ADW account (if available)
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 62905
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google