Literaturdatenbank
Literaturdatenbank |
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Stepek, M. A., Castellano, C. M., & Behler, J. L. , Demography and home range of the bog turtle (glyptemys muhlenbergii): an endangered species in new jersey. Paper presented at Turtle Survival Alliance 2006 Annual Meeting.
Added by: Admin (13 Dec 2008 22:23:56 UTC) |
| Resource type: Proceedings Article BibTeX citation key: Stepek2006 View all bibliographic details  |
Categories: General Keywords: Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises Creators: Behler, Castellano, Stepek Collection: Turtle Survival Alliance 2006 Annual Meeting |
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| Abstract |
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Bog turtle (Glyptemys muhlenbergii) populations are declining due to a number of factors, such as habitat degradation and loss. After being listed in 1997 as threatened under the Endangered Species Act, resource managers at Delaware Water Gap National Recreation Area (DEWA) conducted a park-wide inventory of over one hundred sites containing potentially suitable G. muhlenbergii habitat. Turtles were found at only one location. As a result of this study and information from state agencies, more intensive fieldwork was conducted from April 2003 through December 2004 to assess the long-term viability of G. muhlenbergii within the park. Fieldwork consisted of time-constrained surveys, trapping using bog turtle and crab traps, and radio telemetry. The primary objectives of this study were to investigate demographic characteristics such as population size and age structure, calculate home range, determine travel corridors and important habitat, identify seasonal movements and habitat use, and document the genetic makeup of G. muhlenbergii found. Four populations were discovered, with individuals ranging in age from hatchlings to greater than thirty years old. Twenty adults were radio-tracked throughout the study period. This information will be used by DEWA in order to implement a long-term G. muhlenbergii monitoring plan, and also enable law enforcement officials to identify the home localities of illegally collected turtles based upon genetic information.
Added by: Admin |