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AnAge entry for Sorex araneus


Classification (HAGRID: 03545)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Soricomorpha
                Family: Soricidae
                    Genus: Sorex
SpeciesSorex araneus
Common nameEurasian shrew

Lifespan, ageing, and relevant traits

Maximum longevity3.2 years (captivity)
Sourceref. 671
Sample sizesmall
Data qualityacceptable
Observations

In the wild, these animals rarely live more than one year. One captive specimen lived for 3.2 years [0671]. In one study in captivity, animals featured a high mortality, though inadequate husbandry conditions could be to blame [0504].

Life history traits (averages)

Female sexual maturity198 days
Male sexual maturity335 days
Gestation21 days
Weaning25 days
Litter size6 (viviparous)
Litters per year1.9
Inter-litter interval40 days
Weight at birth0.44 g
Weight at weaning8.5 g
Adult weight9 g
Postnatal growth rate
Maximum longevity residual46 %

Metabolism

Typical body temperature308ºK or 35.0ºC or 95.0ºF
Basal metabolic rate0.3480 W
Body mass8.4 g
Metabolic rate per body mass0.041429 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
[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
[0504] Pucek (1964), Morphological changes in shrews kept in captivity

External resources

Integrated Taxonomic Information SystemITIS 633779
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
Entrez

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Ageing literature

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