AnAge entry for Antilocapra americana
Classification (HAGRID: 01895)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Artiodactyla
Family: Antilocapridae
Genus: Antilocapra
- Species
- Antilocapra americana
- Common name
- Pronghorn
- Synonyms
- Antilocapra anteflexa, Antilope americana
Lifespan, ageing, and relevant traits
- Maximum longevity
- 17 years (captivity)
- Source
- ref. 1306
- Sample size
- Medium
- Data quality
- Acceptable
- Observations
In the wild, these animals tend to live less than 10 years [0542], though there are anecdotal reports of wild animals living as much as 15 years. One captive specimen lived 17 years [1306].
Life history traits (averages)
- Female sexual maturity
- 547 days
- Male sexual maturity
- 547 days
- Gestation
- 235 days
- Weaning
- 91 days
- Litter size
- 2 (viviparous)
- Litters per year
- 1
- Inter-litter interval
- 365 days
- Weight at birth
- 3,000 g
- Weight at weaning
- 8,900 g
- Adult weight
- 46,100 g
- Postnatal growth rate
- 0.0083 days-1 (from Gompertz function)
- Maximum longevity residual
- 67%
Metabolism
- Typical body temperature
- 311ºK or 38.0ºC or 100.4ºF
- Basal metabolic rate
- 50.9730 W
- Body mass
- 34779.3 g
- Metabolic rate per body mass
- 0.001466 W/g
References
- [1306] Peron et al. (2019), Variation in actuarial senescence does not reflect life span variation across mammals (PubMed)
- [1135] Lemaitre et al. (2013), Comparing free-ranging and captive populations reveals intra-specific variation in aging rates in large herbivores (PubMed)
- [1143] Nussey et al. (2013), Senescence in natural populations of animals: widespread evidence and its implications for bio-gerontology (PubMed)
- [0817] Bielby et al. (2007), The fast-slow continuum in mammalian life history: an empirical reevaluation (PubMed)
- [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
- [0538] Don Wilson and Sue Ruff (1999), The Smithsonian Book of North American Mammals
- [0441] William Burt et al. (1998), A Field Guide to Mammals
- [0677] Saether and Gordon (1994), The adaptive significance of reproductive strategies in ungulates (PubMed)
- [0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
- [0542] Bernhard Grzimek (1990), Grzimek's Encyclopedia of Mammals
- [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 180717
- Animal Diversity Web
- ADW account
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 9891
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google