Literaturdatenbank
Literaturdatenbank |
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Mahmoud, I. Y., & Klicka, J. (1972). Seasonal gonadal changes in kinosternid turtles. Journal of Herpetology, 6(3/4), 183–189.
Added by: Admin (25 Aug 2008 20:41:54 UTC) Last edited by: Beate Pfau (11 Jul 2009 16:40:15 UTC) |
| Resource type: Journal Article BibTeX citation key: Mahmoud1972a View all bibliographic details  |
Categories: General Keywords: Fortpflanzung = reproduction, Habitat = habitat, Haltung = husbandry, Kinosternidae, Kinosternon, Kinosternon flavescens, Kinosternon subrubrum, Nordamerika = North America, Schildkröten = turtles + tortoises, Sternotherus, Sternotherus carinatus, Sternotherus odoratus Creators: Klicka, Mahmoud Collection: Journal of Herpetology |
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| Abstract |
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Sternotherus Kinosternon Male and female reproductive cycles were studied in 4 species of kinosternid turtles (Kinosternon subrubrum hippocrepis, K. f. flavescens, Sternotherus odoratus, and S. carinatus) collected from Arkansas, Texas, and Oklahoma. Spermatogenesis begins in June and reaches a peak by mid-August when the testes attain maximum size. Testicular regression begins shortly after the cessation of spermatogenesis. Follicular growth began during late summer but did not reach its peak until the following spring just prior to ovulation. Egg-laying is usually from May to early June. Regression of corpora lutea is complete in about 3 months. There was no correlation between body size and egg clutch size or testes weight. Added by: Admin Last edited by: Beate Pfau |