Literaturdatenbank
Literaturdatenbank |
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Cox, W. A., & Marion, K. R. (1978). Observations on the female reproductive cycle and associated phenomena in spring-dwelling populations of sternotherus minor in north florida (reptilia: testudines). Herpetologica, 34(1), 20–33.
Added by: Admin (25 Aug 2008 20:36:55 UTC) Last edited by: Beate Pfau (01 Aug 2009 08:30:10 UTC) |
| Resource type: Journal Article BibTeX citation key: Cox1978a View all bibliographic details  |
Categories: General Keywords: Fortpflanzung = reproduction, Habitat = habitat, Kinosternidae, Nordamerika = North America, Schildkröten = turtles + tortoises, Sternotherus, Sternotherus minor Creators: Cox, Marion Collection: Herpetologica |
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| Abstract |
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Sternotherus minor An extended annual reproductive cycle is typical in Sternotherus minor ♀ ♀ in north Florida springs. Vitellogenesis begins in late August-early September and continues until ovulation of the last clutch. The period of greatest reproductive activity is from November to early June. No vitellogenesis is apparent from late June or early July until late August or early September. Mean clutch size is 2.4 (range = 1-4), 3-4 clutches are common, and the production of 5 clutches in many individuals is probable. Clutch and egg sizes are positively correlated with the size of ♀ ♀. Post-oviposition involution of corpora lutea is initially rapid, followed by a more extended period of final resorption. Nest site selection appears to be more dependent upon elevation above mean water level than upon distance from the shoreline. Added by: Admin Last edited by: Beate Pfau |