Literaturdatenbank
Literaturdatenbank |
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Lindsay, S. D., & Dorcas, M. E. (2001). Effects of cattle on reproduction and morphology of pond-dwelling turtles in north carolina. Journal of the Elisha Mitchell Scientific Society, 117(4), 249–257.
Added by: Admin (17 Aug 2008 18:54:52 UTC) |
| Resource type: Journal Article BibTeX citation key: Lindsay2001 View all bibliographic details  |
Categories: General Keywords: Chelydra, Chelydra serpentina, Chelydridae, Chrysemys, Chrysemys picta, Emydidae, Ernährung = nutrition, Fortpflanzung = reproduction, Habitat = habitat, Kinosternidae, Kinosternon, Kinosternon subrubrum, Nordamerika = North America, Schildkröten = turtles + tortoises, Sternotherus, Sternotherus odoratus, Trachemys, Trachemys scripta, Zeitigung = incubation Creators: Dorcas, Lindsay Collection: Journal of the Elisha Mitchell Scientific Society |
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| Abstract |
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Few studies have addressed intraspecific variation in life history characteristics among habitats of varying quality. An extensive mark-recapture study was used to compare semi-aquatic turtle populations among 12 ponds with varying cattle impact in the vicinity of Davidson, North Carolina. Turtles were compared at a community level and tested for differences in morphology and reproduction among the ponds. Considerable variation was found in species composition and relative abundances among the ponds using regression analyses. The size of Kinosternon subrubrum (eastern mud turtle) was inversely correlated with concentrations of nitrite/nitrate and ammonia, and K. subrubrum egg size was inversely correlated with concentrations of nitrite/nitrate and overall cattle impact. Chrysemys picta (painted turtle) morphology and egg size was not correlated with measured characteristics of water quality or with cattle impact. Other species captured in this study included Chelydra serpentina (snapping turtle), Trachemys scripta (slider), and Sternotherus odoratus (stinkpot turtle). Although populations of these turtles were too small to permit statistical comparison, we documented several new county records.
Added by: Admin |