Literaturdatenbank
Literaturdatenbank |
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Sterrett, S. C., Smith, L. L., Schweitzer, S. H., & Maerz, J. C. (2010). An assessment of two methods for sampling river turtle assemblages. Herpetological Conservation and Biology, 5(3), 490–497.
Added by: Sarina Wunderlich (27 Mar 2011 16:16:49 UTC) |
| Resource type: Journal Article BibTeX citation key: Sterrett2010a View all bibliographic details  |
Categories: General Keywords: Emydidae, Graptemys, Graptemys barbouri, Habitat = habitat, Kinosternidae, Nordamerika = North America, Schildkröten = turtles + tortoises, Sternotherus, Sternotherus minor, Trachemys, Trachemys scripta Creators: Maerz, Schweitzer, Smith, Sterrett Collection: Herpetological Conservation and Biology |
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| Abstract |
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We compared the effectiveness of baited hoop traps and effort-managed snorkel surveys for detecting freshwater turtle species within two streams in southwestern Georgia, USA. Snorkel surveys provided the highest detection probability for the four most frequently captured species. We captured the Barbour’s Map Turtle (Graptemys barbouri), a threatened species in the southeastern U.S., 90% of the time by snorkeling; whereas, we captured the Yellowbellied Slider (Trachemys scripta) 88% of the time by hoop traps. We captured adults and juveniles with both methods, with the exception of juvenile Loggerhead Musk Turtles (Sternotherus minor), which we caught only via snorkeling. The two methods captured turtles of similar sizes. Seasonal and physical constraints can affect visibility and access to capture locations, limiting snorkeling sessions. We recommend use of both techniques to capture a range of sexes, sizes, and species of turtles in Coastal Plain streams. However, species-specific surveys may benefit by lower effort with the use of only one method.
Added by: Sarina Wunderlich |