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AnAge entry for Alces alces


Classification (HAGRID: 02360)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Artiodactyla
                Family: Cervidae (Taxon entry)
                    Genus: Alces
SpeciesAlces alces
Common nameMoose

Lifespan, ageing, and relevant traits

Maximum longevityNot yet established
Observations

It has been reported that females may live up to 22 years in the wild [0538]. Others have reported that mooses live up to 27 years in the wild [0001], which is plausible but unconfirmed. Record longevity in captivity is 18.4 years [0671]. Due to these conflicting reports, the maximum longevity of this species is classified as unknown.

Life history traits (averages)

Female sexual maturity751 days
Male sexual maturity612 days
Gestation243 days
Weaning100 days
Litter size1.3 (viviparous)
Litters per year1
Inter-litter interval365 days
Weight at birth12,844 g
Weight at weaning94,000 g
Adult weight386,000 g
Postnatal growth rate0.0039 days-1 (from Gompertz function)

Metabolism

Typical body temperature312ºK or 38.6ºC or 101.5ºF
Basal metabolic rate286.8470 W
Body mass325000.0 g
Metabolic rate per body mass0.000883 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
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0538] Don Wilson and Sue Ruff (1999), The Smithsonian Book of North American Mammals
[0441] William Burt et al. (1998), A Field Guide to Mammals
[0676] Purvis and Harvey (1995), Mammal life-history evolution: a comparative test of Charnov’s model
[0677] Saether and Gordon (1994), The adaptive significance of reproductive strategies in ungulates, PubMed
[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
[0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves
[0001] Longevity Records: Life Spans of Mammals, Birds, Amphibians, Reptiles, and Fish

External resources

Integrated Taxonomic Information SystemITIS 180703
Animal Diversity WebADW account (if available)
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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