AnAge entry for Castor canadensis

Classification (HAGRID: 03285)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Castoridae
                    Genus: Castor
Species
Castor canadensis
Common name
American beaver
Synonyms
Castor caecator, Castor canadensis phaeus, Castor canadensis acadicus, Castor canadensis baileyi, Castor canadensis belugae, Castor canadensis caecator, Castor canadensis canadensis, Castor canadensis carolinensis, Castor canadensis concisor, Castor canadensis duchesnei, Castor canadensis frondator, Castor canadensis idoneus, Castor canadensis labradorensis, Castor canadensis leucodontus, Castor canadensis mexicanus, Castor canadensis michiganensis, Castor canadensis missouriensis, Castor canadensis pallidus, Castor canadensis repentinus, Castor canadensis rostralis, Castor canadensis sagittatus, Castor subauratus shastensis, Castor subauratus subauratus, Castor canadensis taylori, Castor canadensis texensis

Lifespan, ageing, and relevant traits

Maximum longevity
23.4 years (captivity)
Source
ref. 671
Sample size
Small
Data quality
Acceptable
Observations

It has been suggested that beavers may live as much as 50 years [0434], which is doubtful. One captive specimen was still alive after 23.4 years [0671].

Life history traits (averages)

Female sexual maturity
639 days
Male sexual maturity
639 days
Gestation
128 days
Weaning
60 days
Litter size
3.5 (viviparous)
Litters per year
1
Inter-litter interval
365 days
Weight at birth
430 g
Weight at weaning
Adult weight
20,250 g
Postnatal growth rate
Maximum longevity residual
105%

Metabolism

No information on metabolism is available.

References

External Resources

Integrated Taxonomic Information System
ITIS 180212
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 51338
Entrez
Search all databases
Ageing Literature
Search Google Scholar or Search PubMed or Search Scirus
Images
Google Image search
Internet
Search Google