Literaturdatenbank
Literaturdatenbank |
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van Amerongen, K. K., & Nelson, D. H. (2000). Biodiversity of the freshwater turtle community in the weeks bay watershed. Journal of the Alabama Academy of Science, Jan-April.
Added by: Admin (01 Aug 2010 18:21:48 UTC) |
| Resource type: Journal Article BibTeX citation key: vanAmerongen2000 View all bibliographic details  |
Categories: General Keywords: Apalone, Apalone spinifera, Chelydra, Chelydra serpentina, Chelydridae, Deirochelys, Deirochelys reticularia, Emydidae, Habitat = habitat, Nordamerika = North America, Pseudemys, Pseudemys alabamensis, Pseudemys concinna, Schildkröten = turtles + tortoises, Trionychidae Creators: van Amerongen, Nelson Collection: Journal of the Alabama Academy of Science |
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| URLs http://findarticle ... pril/ai_n28812989/ |
| Abstract |
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Adjacent to the Mobile Bay, the Weeks Bay estuary provides a plethora of aquatic habitats for resident turtle species. This project concentrates on assessing the biodiversity of the freshwater turtle community and estimating the relative densities of each species. Trapping extended from May 28, 1999 to September 25, 1999. Turtles were collected using aquatic hoop traps with a 12m lead net in the center. Captured turtles were identified to species, sexed, and weighed; seven different shell measurements were also taken. Turtles were marked by drilling a pattern of holes in the marginal scutes of the carapace. Each turtle received a unique number that allowed identification upon recapture. There were a total of 687 turtles captured with Pseudemys concinna (River cooters) accounting for 57% of the community. Pseudemys floridana (Florida cooters) made up 19.5%, and the endangered Pseudemys alabamensis (Alabama redbelly turtle) made up 18% of the community. The remaining 5.5% consisted of Deirochelys reticularia ( Chicken turtles), Apalone spinifera (Spiny softshell turtles), Chelydra serpentina (Common snapping turtles), and Macroclemys temminckii (Alligator snapping turtles). A total of 117 turtles, representing five different species, were recaptured. Three turtle species had significant recapture rates: P. floridana (18.7%), P. concinna (18.1%). P. alabamensis (11.2%). This project will continue through August 2000 with funding from the National Oceanic and Atmospheric Administration.
Added by: Admin |