Literaturdatenbank
Literaturdatenbank |
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Iverson, J. B., Barthelmess, E. L., Smith, G. R., & deRivera, C. E. (1991). Growth and reproduction in the mud turtle kinosternon hirtipes in chihuahua, mexico. Journal of Herpetology, 25 (1), 64–72.
Added by: Admin (23 Aug 2008 19:58:55 UTC) Last edited by: Beate Pfau (23 Dec 2009 16:15:04 UTC) |
| Resource type: Journal Article BibTeX citation key: Iverson1991d View all bibliographic details  |
Categories: General Keywords: Fortpflanzung = reproduction, Habitat = habitat, Kinosternidae, Kinosternon, Kinosternon hirtipes, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Barthelmess, deRivera, Iverson, Smith Collection: Journal of Herpetology |
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| Abstract |
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Growth and reproductive data from a single population of Kinosternon hirtipes in Chihuahua, Mexico are reported. Males grow faster and are larger than females by age five or younger. Females mature in six to eight years at 95-100 mm carapace length. Ovulation occurs from at least early May to late September. Given the lengthy reproductive season, evidence from multiple sets of corpora lutea and enlarged ovarian follicles suggests an annual production of four clutches. Egg width and mass correlate positively with body length and mass, and negatively with clutch size when the effects of carapace length are removed. Clutch size based on corpora lutea averages three eggs (range 1-6). Clutch size correlates positively with body length and mass. Relative clutch mass (clutch mass/body mass minus clutch mass) averages 7.1% and is independent of body size. Comparisions are made with other kinosternine turtles.
Added by: Admin Last edited by: Beate Pfau |