Literaturdatenbank
Literaturdatenbank |
|
 |
|
Pitt, A. L., & Nickerson, M. A. , Reassessment of the turtle community in the north fork of white river, ozark county missouri usa. Paper presented at Turtle Survival Alliance 2006 Annual Meeting.
Added by: Admin (13 Dec 2008 22:23:50 UTC) |
| Resource type: Proceedings Article BibTeX citation key: Pitt2006 View all bibliographic details  |
Categories: General Keywords: Emydidae, Graptemys, Graptemys geographica, Habitat = habitat, Nordamerika = North America, Schildkröten = turtles + tortoises, Trachemys, Trachemys scripta Creators: Nickerson, Pitt Collection: Turtle Survival Alliance 2006 Annual Meeting |
Views: 3/542
Views index: 9% Popularity index: 2.25% |
| Abstract |
|
The turtle community in a 4.6 km section of the North Fork of White River, Ozark County, Missouri was studied in 1969 and 1980. In 2004, the turtle community was reassessed to determine if alterations since 1980 had occurred in the habitat, community composition, or population size and structure of the Northern Map Turtle, Graptemys geographica. Recent data were compared to historical data from the 1969 and 1980 studies. Graptemys geographica population estimates from 1969, 1980, and 2004 indicate the North Fork of White River supported a fairly stable population of G. geographica between 1980 and 2004, though the population was significantly reduced from the 1969 estimate. Red-eared Sliders, Trachemys scripta elegans, became established in the research section between 1971 and 1980, and expanded their distribution within the research section between 1980 and 2004. Threats to the G. geographica population include lack of basking sites, increased human recreational use of the stream, siltation, and pollution, including fecal coliform and nutrient-loading.
Added by: Admin |