Literaturdatenbank
Literaturdatenbank |
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Rowe, J. W., & Moll, E. O. (1991). A radiotelemetric study of activity and movements of the blanding's turtle (emydoidea blandingi) in northeastern illinois. Journal of Herpetology, 25(2), 178–185.
Added by: Sarina Wunderlich (13 Oct 2008 21:33:16 UTC) Last edited by: Beate Pfau (10 Oct 2009 08:25:58 UTC) |
| Resource type: Journal Article BibTeX citation key: Rowe1991a View all bibliographic details  |
Categories: General Keywords: Emydidae, Emydoidea, Emydoidea blandingii, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Moll, Rowe Collection: Journal of Herpetology |
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| Abstract |
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Seasonal and daily activity of a population of Blanding's turtle (Emydoidea blandingi) inhabiting a marsh-fen ecosystem in northeastern Illinois were investigated by capture-recapture and radiotelemetric techniques. Turtles emerged from dormancy by late March and were observed active at water temperatures of 10 C and feeding at 14 C. Trapping success peaked in June at water temperatures of 18-29 C, then declined in July when water temperatures exceeded 30 C. Nesting occurred in late May and June. Turtles entered winter dormancy between 19 October and 22 November. Emydoidea were primarily aquatic in this study. Terrestrial activity occurred chiefly in the spring, including brief daily sojourns from a single pond, long and short treks between ponds, and long distance treks by females for nesting. Activity centers of individuals were relatively uniform, seldom exceeding two hectares, and were occasionally interrupted by sojourns of both long and short duration. Emydoidea were active diurnally between 0530 and 2230 h. Trapping data suggested a bimodal feeding pattern with peaks in the morning and evening, although telemetry information indicated greater morning activity. For all months combined, females were equally active throughout the day while males were active more in the morning than in afternoon or evening. Daily aquatic movements within activity centers ranged from 1 to 230 m/day and males moved significantly greater distances per day than females.
Added by: Sarina Wunderlich Last edited by: Beate Pfau |