Literaturdatenbank
Literaturdatenbank |
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Evrard, J. O., & Canfield, M. E. (2000). Blanding's turtles in the crex meadows wildlife area. Transactions of the Wisconsin Academy of Sciences, Arts, and Letters, 88, 49–55.
Added by: Admin (17 Aug 2008 17:23:47 UTC) |
| Resource type: Journal Article BibTeX citation key: Evrard2000 View all bibliographic details  |
Categories: General Keywords: Emydidae, Emydoidea, Emydoidea blandingii, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Canfield, Evrard Collection: Transactions of the Wisconsin Academy of Sciences, Arts, and Letters |
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| Abstract |
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Little is known about the Blanding's turtle (Emydoidea blandingii), a threatened species in Wisconsin. The study's objective was to determine the status of the species in the extensive wetlands of the Crex Meadows, Wisconsin's largest wildlife management area. From 10 June to 17 July 1997, 51 Blanding's turtles were captured, measured, marked, and released to determine sex and age and estimate the population size. Eleven Blanding's turtle were recaptured, providing population estimates for Crex Meadows that ranged from 107 to 161 turtles. The sex ratio was highly skewed towards females, which was probably an artifact of the sampling methods used. Because 95% of the turtles captured were adult females, the population estimate provided only an estimate of the numbers of female, not male, Blanding's turtles. The age ratio was highly skewed towards adults. This again could be sampling bias or could be due to high nest and juvenile mortality. The many deep and permanent marshes and open brush prairie uplands of the Crex Meadows Wildlife Area apparently provide good habitat for the Blanding's turtle.
Added by: Admin |