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AnAge entry for Tremarctos ornatus

Classification (HAGRID: 02599)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Ursidae
                    Genus: Tremarctos
SpeciesTremarctos ornatus
Common nameSpectacled bear

Lifespan, ageing, and relevant traits

Maximum longevity39 years (captivity)
Sourceref. 671
Sample sizemedium
Data qualityacceptable
Observations

One wild born animal was about 39 years of age when it died in captivity [0671]. These animals may feature delayed implantation [0434].

Life history traits (averages)

Female sexual maturity
Male sexual maturity
Gestation228 days
Weaning90 days
Litter size1.5 (viviparous)
Litters per year
Inter-litter interval
Weight at birth320 g
Weight at weaning
Adult weight109,250 g
Postnatal growth rate
Maximum longevity residual135 %

Metabolism

No information on metabolism available.

References
[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[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

External resources

Integrated Taxonomic Information SystemITIS 621849
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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AnAge database at the Human Ageing Genomic Resources.

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