Literaturdatenbank
Literaturdatenbank |
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Gibbons, J. W. (1983). Reproductive characteristics and ecology of the mud turtle, kinosternon subrubrum (lacepede). Herpetologica, 39, 254–271.
Added by: Admin (24 Aug 2008 18:46:33 UTC) |
| Resource type: Journal Article BibTeX citation key: Gibbons1983 View all bibliographic details  |
Categories: General Keywords: Fortpflanzung = reproduction, Habitat = habitat, Kinosternidae, Kinosternon, Kinosternon subrubrum, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Gibbons Collection: Herpetologica |
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| Abstract |
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The mud turtle (Kinsoternon subrubrum) does not vary geographically in body size, but the number of eggs per clutch is significantly higher at cooler latitudes. Scrutiny of a single population in South Carolina revealed a decrease in average clutch size during the egg-laying season. Although female body size, climate and season may be independently or interactively important in influencing clutch size in K. subrubrum, a high, unexplained variance indicates the influence of other factors. Multiple clutches within a season by individuals are frequent among South Carolina K. subrubrum and two clutches per year may be laid in cooler regions. Although clutch size did not vary annually in South Carolina, clutch frequency and the proportion of females laying eggs did. Both males and females reach maturity at 70-80 mm in carapace length throughout the geographic range. No evidence exists that sex ratios vary significantly from 1:1 in any populations. Population size estimates (c=371; SE=35) for a South Carolina population were determined for 10 years.
Added by: Admin |