Literaturdatenbank
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Kofron, C. P., & Schreiber, A. A. (1985). Ecology of two endangered aquatic turtles in missouri: kinosternon flavescens and emydoidea blandingii. Journal of Herpetology, 19, 27–40.
Added by: Admin (24 Aug 2008 18:49:46 UTC) Last edited by: Beate Pfau (21 May 2009 09:28:09 UTC) |
| Resource type: Journal Article BibTeX citation key: Kofron1985a View all bibliographic details  |
Categories: General Keywords: Emydidae, Emydoidea, Emydoidea blandingii, Habitat = habitat, Kinosternidae, Kinosternon, Kinosternon flavescens, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Kofron, Schreiber Collection: Journal of Herpetology |
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Kinosternon flavescens and Emydoidea blandingii are both included on the Missouri list of endangered species, and the Missouri populations of K. flavescens are under consideration for placement upon the federal list. There are four known populations of K. flavescens and two of E. blandingii within the state, all in Clark County in the western floodplain of the Mississippi River. Goose Pond, a small patch of remnant marsh in a former river channel of the Des Moines River, is the last natural habitat in Missouri that contains a population of either species. Sandy soil appears to be a habitat requisite for both species. Kinosternon flavescens appears to tolerate major alterations of the natural habitat, whereas E. blandingii requires clean shallow water with abundant aquatic vegetation and appears to be sensitive to habitat manipulation. Kinosternon flavescens at Goose Pond had an aquatic feeding period of only three months. The species began aquatic feeding during April, but then ceased during July without any later resumption. Emydoidea blandingii fed for approximately 4½ months with two distinct phases: the first phase during April, May, June, and the first half of July; and a second phase during the latter half of August and the first half of September prior to hibernation. Kinosternon flavescens fed predominantly upon hard-shelled snails, and to a lesser extent upon insects, fish, and crayfish. Emydoidea blandingii fed predominantly upon crayfish and insects. The data suggest that E. blandingii in Missouri attain sexual maturity at a carapace length of 170-180 mm.
Added by: Admin Last edited by: Beate Pfau |