Literaturdatenbank
Literaturdatenbank |
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Castellano, C. M. , Consideration of demographic and spatial variation among regional aggregations of the wood turtle (glyptemys insculpta) better informs management strategies.
Added by: Admin (06 Jan 2014 18:22:42 UTC) |
| Resource type: Conference Paper BibTeX citation key: anon2011c View all bibliographic details  |
Categories: General Keywords: Emydidae, Glyptemys insculpta, Habitat - habitat, Nordamerika - North America, Schildkröten - turtles + tortoises Creators: Castellano |
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| Abstract |
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Turtles are now considered to be one of the groups most threatened by extinction on the planet. Protected areas (PAs) world-wide will become even more critical in the conservation of these species; however, some PAs are mixed-use landscapes where natural resources may be harvested and land and waterways used to support recreational activities. Resource managers will become increasingly tasked with balancing human interests with their conservation objectives for turtles. Populations of the North American Wood Turtle (Glyptemys insculpta) have been in steady decline throughout its range primarily due to habitat loss. One of this species last remaining strongholds is the Delaware Water Gap National Recreation Area (DEWA), a mixed-use recreational facility located in the northeast. We used radio-telemetry and mark-recapture techniques to investigate the demographic and spatial attributes of G. insculpta at DEWA in order to assist with the development of an effective management strategy for this species. During this study we made greater than 1,300 captures, marked over 400 adults and juveniles, and radiotracked 30 individuals from three different watersheds that were separated by between 12 and 43 km. Population size and density, body lengths and mass, and home range estimates were significantly different among locations. Our data demonstrate that the demographic and spatial attributes of G. insculpta can vary considerably among regional aggregations of this species. Understanding this variation is critical for the development of effective management strategies for G. insculpta at DEWA, which includes various actions for habitat conservation, threat mitigation, and continued law enforcement presence at these watersheds.
Added by: Admin |