AnAge entry for Lepus americanus

Lifespan, ageing, and relevant traits

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)

Metabolism

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

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