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AnAge entry for Otomys irroratus

Classification (HAGRID: 03365)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Muridae
                    Genus: Otomys
SpeciesOtomys irroratus
Common nameVlei rat

Lifespan, ageing, and relevant traits

Maximum longevityNot yet established
Observations

One captive animal lived for 1.8 years and animals in the wild probably do not live more than 2 years [0625]. Still, without more detailed studies maximum longevity is classified as unknown.

Life history traits (averages)

Female sexual maturity82 days
Male sexual maturity91 days
Gestation40 days
Weaning13 days
Litter size1.78 (viviparous)
Litters per year4.25
Inter-litter interval
Weight at birth14.5 g
Weight at weaning30 g
Adult weight146.8 g
Postnatal growth rate0.0371 days-1 (from Gompertz function)

Metabolism

Typical body temperature311ºK or 37.6ºC or 99.7ºF
Basal metabolic rate0.4740 W
Body mass102.0 g
Metabolic rate per body mass0.004647 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
[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
[0625] Bronner et al. (1988), Otomys irroratus
[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 SystemITIS 632795
Animal Diversity WebADW account (if available)
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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