Literaturdatenbank
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Koch, A. J. (2010). Painted turtle predation of larval amphibians. Unpublished thesis , University of Nebraska, Kearney.
Added by: Sarina Wunderlich (18 Nov 2012 17:43:38 UTC) |
| Resource type: Thesis/Dissertation BibTeX citation key: Koch2010 View all bibliographic details  |
Categories: General Keywords: Ernährung = nutrition, Fressfeinde = predators, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Koch Publisher: University of Nebraska (Kearney) |
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| Abstract |
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Human alterations to habitat can have a detrimental effect on amphibian diversity and abundance. While some species benefit from human activities many species suffer local extirpations. Loss and degradation of natural wetlands is a widespread problem; however, artificial ponds are capable of sustaining amphibian populations and if properly managed could be used to offset the loss of historic wetlands. This study investigated amphibian reproduction in small, fishless Nebraska impoundments created prior to 1960. Seven ponds of similar size located within the same drainage in upland prairie were studied. Variables include the location of the pond within the drainage, water quantity, quality, and timing of water availability. Five species of amphibians were found to use these ponds for reproduction. Amphibian species present at each pond changed from the first year to the next at every pond except for pond 2. Tadpole populations also changed between years for all ponds. The water quality measures of these ponds were generally comparable but differed for ponds that dried compared to those that remained wet. These artificial ponds used for watering cattle in upland prairie are able to maintain amphibian populations more than 50 years after their construction even without any efforts made for amphibian management.
Added by: Sarina Wunderlich |