Literaturdatenbank
Literaturdatenbank |
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Congdon, J. D., Tinkle, D. W., Breitenbach, G. L., & van Loben Sels, R. C. (1983). Nesting ecology and hatching success in the turtle emydoidea blandingii. Herpetologica, 39, 417–429.
Added by: Admin (24 Aug 2008 18:46:13 UTC) Last edited by: Beate Pfau (21 May 2009 09:21:46 UTC) |
| Resource type: Journal Article BibTeX citation key: Congdon1983d View all bibliographic details  |
Categories: General Keywords: Emydidae, Emydoidea, Emydoidea blandingii, Fortpflanzung = reproduction, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Breitenbach, Congdon, van Loben Sels, Tinkle Collection: Herpetologica |
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| Abstract |
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Emydoidea blandingii Nesting ecology of the Blanding's turtle was studied for 6 yr, from 1976 through 1981 in southeastern Michigan. Beginnings of the nesting seasons varied by 17 days (May 23 to June 9) and lasted from 16-30 ( Chi super(-) = 23) days. Beginnings of nesting seasons were significantly correlated with mean April temperatures but not to mean May temperatures. Nesting activity occurred almost entirely in the evening with average time of nest completion at 2119 h EST. Most females return to the same general nesting areas each year. Nesting areas were usually not adjacent to the Female's marsh of residence. Three hypotheses concerning predation of nests were tested. Nests located greater distances from water should have lower predation rates. Nests located in areas where predators can use an essentially linear search pattern should have a higher predation rate. Females that nest early in the nesting season should have lower egg mortality due to predation. Added by: Admin Last edited by: Beate Pfau |