AnAge entry for Ursus thibetanus
Classification (HAGRID: 02254)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Carnivora
Family: Ursidae
Genus: Ursus
- Species
- Ursus thibetanus
- Common name
- Asiatic black bear
- Synonyms
- Selenarctos thibetanus
Lifespan, ageing, and relevant traits
- Maximum longevity
- 39.2 years (captivity)
- Source
- ref. 671
- Sample size
- Medium
- Data quality
- Acceptable
- Observations
As in other bears, there is usually a delayed implantation [0434]. One captive specimen lived 39.2 years [0671].
Life history traits (averages)
- Female sexual maturity
- 1,095 days
- Male sexual maturity
- 1,095 days
- Gestation
- 228 days
- Weaning
- 99 days
- Litter size
- 2 (viviparous)
- Litters per year
- Inter-litter interval
- 365 days
- Weight at birth
- 463 g
- Weight at weaning
- Adult weight
- 103,750 g
- Postnatal growth rate
- Maximum longevity residual
- 137%
Metabolism
- Typical body temperature
- 311ºK or 37.5ºC or 99.5ºF
- Basal metabolic rate
- Not yet available
References
- [1023] Asano et al. (2007), Immobilization of Japanese black bears (Ursus thibetanus japonicus) with tiletamine hydrochloride and zolazepam hydrochloride (PubMed)
- [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
- [0955] Cork et al. (1988), Neurofibrillary tangles and senile plaques in aged bears (PubMed)
External Resources
- Integrated Taxonomic Information System
- ITIS 621850
- Animal Diversity Web
- ADW account
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 9642
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google