Literaturdatenbank
Literaturdatenbank |
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Standing, L. K., Herman, T. B., Hurlburt, D. D., & Morrison, I. P. (1997). Post-emergence behaviour of neonates in a northern peripheral population of blanding’s turtle, emydoidea blandingii, in nova scotia. Canadian Journal of Zoology, 75, 1387–1395.
Added by: Sarina Wunderlich (18 Nov 2012 17:47:07 UTC) |
| Resource type: Journal Article BibTeX citation key: Standing1997b View all bibliographic details  |
Categories: General Keywords: Emydidae, Emydoidea, Emydoidea blandingii, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises, Zeitigung = incubation Creators: Herman, Hurlburt, Morrison, Standing Collection: Canadian Journal of Zoology |
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| Abstract |
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The early postemergence behaviour of neonate Blanding's turtles, Emydoidea blandingii, was studied in Nova Scotia in 1994 and 1995 to test the hypothesis that hatchlings go to water immediately upon emergence from the nest. At the northeastern limit of the species' range, hatchling turtles should seek aquatic hibernacula to avoid freezing; where emergence from the nest is delayed until late autumn, selection pressure for water-seeking behaviour should be strong. Using pigmented powder that fluoresces under UV light, 78 hatchlings from 12 lakeshore nests and 2 inland nests were tracked for a maximum of 11 days. On the first day after emergence, hatchling movement was random with respect to water. Hatchlings did not orient themselves with respect to slope, vegetation, or nestmates, nor did individuals follow a consistent compass bearing among days. Often trails were convoluted in the open and relatively straight under dense vegetation. Evidence suggests that hatchlings in this population may overwinter in terrestrial as well as aquatic hibernacula.
Added by: Sarina Wunderlich |