AnAge entry for Lepus americanus
Classification (HAGRID: 02594)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Lagomorpha
Family: Leporidae
Genus: Lepus
- Species
- Lepus americanus
- Common name
- Snowshoe hare
Lifespan, ageing, and relevant traits
- Maximum longevity
- Not yet established
- Observations
In the wild, these animals do not generally live more than 3 years and most die within their first year of life. Potential longevity has been estimated at 5 years [0434]. One wild born specimen was about 5.4 years of age when it died in captivity [0671]. Anecdotal reports of animals living up to 8 years have not been confirmed. Further studies are necessary to better estimate the maximum longevity of this species.
Life history traits (averages)
- Female sexual maturity
- 308 days
- Male sexual maturity
- 411 days
- Gestation
- 36 days
- Weaning
- 20 days
- Litter size
- 3 (viviparous)
- Litters per year
- 2.6
- Inter-litter interval
- 39 days
- Weight at birth
- 61.03 g
- Weight at weaning
- 362 g
- Adult weight
- 1,600 g
- Postnatal growth rate
- 0.0376 days-1 (from Gompertz function)
Metabolism
- Typical body temperature
- 313ºK or 39.8ºC or 103.6ºF
- Basal metabolic rate
- 6.7080 W
- Body mass
- 1603.4 g
- Metabolic rate per body mass
- 0.004184 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)
- [0610] Ernest (2003), Life history characteristics of placental non-volant mammals
- [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
- [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
External Resources
- Integrated Taxonomic Information System
- ITIS 180112
- Animal Diversity Web
- ADW account
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 48086
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google