AnAge entry for Erethizon dorsatus

Classification (HAGRID: 02604)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Erethizontidae
                    Genus: Erethizon
Species
Erethizon dorsatus
Common name
North American porcupine
Synonyms
Erethizon dorsatum

Lifespan, ageing, and relevant traits

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

These animals appear to have a remarkably long life span in the wild, living up to 18 years [0434]. One captive specimen was about 23.4 years when it died [0671].

Life history traits (averages)

Female sexual maturity
1,095 days
Male sexual maturity
1,095 days
Gestation
210 days
Weaning
60 days
Litter size
1 (viviparous)
Litters per year
1
Inter-litter interval
Weight at birth
500 g
Weight at weaning
1,000 g
Adult weight
8,600 g
Postnatal growth rate
0.0079 days-1 (from Gompertz function)
Maximum longevity residual
119%

Metabolism

Typical body temperature
309ºK or 36.0ºC or 96.8ºF
Basal metabolic rate
13.6750 W
Body mass
6871.0 g
Metabolic rate per body mass
0.001990 W/g

References

External Resources

Integrated Taxonomic Information System
ITIS 825295
Animal Diversity Web
ADW account (if available)
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Entrez
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Ageing Literature
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Images
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Internet
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