Literaturdatenbank
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Rahman, S., & Burke, R. L. (2010). Evaluating nest protectors for turtle conservation. section vi. In D. J. Yozzo, S. H. Fernald & H. Andreyko (Eds.), Final Reports of the Tibor T. Polgar Fellowship Program, 2009 (pp. 1–23).Hudson River Foundation.
Added by: Sarina Wunderlich (30 Jun 2012 22:01:46 UTC) |
| Resource type: Book Article BibTeX citation key: Rahman2010 View all bibliographic details  |
Categories: General Keywords: Emydidae, Fortpflanzung = reproduction, Habitat = habitat, Malaclemys, Malaclemys terrapin, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Andreyko, Burke, Fernald, Rahman, Yozzo Publisher: Hudson River Foundation Collection: Final Reports of the Tibor T. Polgar Fellowship Program, 2009 |
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| Abstract |
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Nest predation is a major conservation problem for turtles all over the world. Many researchers and conservation agencies depend heavily on nest protectors/nest predator excluders to protect nests; however, there are potentially negative impacts of nest protectors. Standard nest protectors may affect the incubation temperature of turtle eggs, which is potentially important because embryological development can be profoundly influenced by incubation temperature. A subtle change in incubation temperature caused by nest protectors can affect the sex ratio, growth, development, behavior and survival of turtle hatchlings. This study investigates the impact of standard nest protectors on incubation temperature of turtle nests and body size of hatchlings using diamondback terrapins (Malaclemys terrapin) as a model. During the summer of 2009, 48 terrapin nests were located at Jamaica Bay wildlife refuge and transplanted in experimental plots with temperature loggers. Temperature loggers were retrieved and emerging hatchlings were measured from the nest in the fall. Many of the nests were disturbed by raccoons during the season resulting reduction of sample size. However, data collected from the remaining nests indicate, a significant difference in incubation temperature between the nests with metal box protectors and nests without protectors, but the nest protectors didn’t affect the size of the hatchlings.
Added by: Sarina Wunderlich |