Literaturdatenbank
Literaturdatenbank |
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Todd, B. D., Winne, C. T., Willson, J. D., & Gibbons, J. W. (2007). Getting the drift: examining the effects of timing, trap type and taxon on herpetofaunal drift fence surveys. American Midland Naturalist, 158(2), 292–305.
Added by: Sarina Wunderlich (30 Jun 2012 22:01:58 UTC) |
| Resource type: Journal Article DOI: http://dx.doi.org/10.1674/0003-0031(2007)1582.0.CO;2 BibTeX citation key: Todd2007 View all bibliographic details  |
Categories: General Keywords: Amphibien = amphibians, Chelydra, Chelydra serpentina, Chelydridae, Deirochelys, Deirochelys reticularia, Emydidae, Habitat = habitat, Kinosternidae, Kinosternon, Kinosternon baurii, Kinosternon subrubrum, Nordamerika = North America, Pseudemys, Pseudemys concinna, Schildkröten = turtles + tortoises, Schlangen = snakes, Sternotherus, Sternotherus odoratus, Technik = equipment, Terrapene, Terrapene carolina, Trachemys, Trachemys scripta Creators: Gibbons, Todd, Willson, Winne Collection: American Midland Naturalist |
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| Abstract |
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Chelydra serpentina Deirochelys reticularia Kinosternon baurii subrubrum Pseudemys floridana Sternotherus odoratus Terrapene carolina Trachemys scripta The evaluation of appropriate sampling methodologies is critical for accurately determining the distribution and status of herpetofaunal populations. We report the results of a year-long drift fence study, using multiple trap types (large pitfall traps, small pitfall traps and funnel traps), of a species-rich herpetofaunal community (59 species) surrounding an isolated wetland in the southeastern United States. Specifically, we determined the effects that timing, trap type and taxon had on capture rates of herpetofauna. We found that funnel traps captured the greatest number of herpetofaunal species, but a combination of funnel traps and large pitfall traps yielded the greatest number of individual captures due to complementary biases in capture efficiencies among herpetofaunal taxa. With little exception, small pitfall traps were relatively ineffective for sampling herpetofauna. We also found that the timing of drift fence monitoring affected herpetofaunal species accumulation rates but that seasonal effects were taxon-specific. Our study affirms that drift fences are exceptional tools for inventorying and monitoring diverse species and large numbers of herpetofauna and also demonstrates the important effects that season and taxon can have on capture rates. Therefore, we recommend a priori delineation of project goals and the use of multiple trap types with careful attention to the timing of drift fence monitoring to maximize sampling efficiency and minimize biases associated with data collection.
Added by: Sarina Wunderlich |