A comparison of turtle sampling methods in a small lake in Standing Stone State Park, Overton County, Tennessee

Journal of the Tennessee Academy of Science
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Abstract

We used basking traps and hoop nets to sample turtles in Standing Stone Lake at 2-week intervals from May to November 2006. In alternate weeks, we conducted visual basking surveys. We collected and observed four species of turtles: spiny softshell (Apalone spinifera), northern map turtle (Graptemys geographica), pond slider (Trachernys scripta), and snapping turtle (Chelydra serpentina). Relative abundances varied greatly among sampling methods. To varying degrees, all methods were species selective. Population estimates from mark and recaptures of three species, basking counts, and hoop net catches indicated that pond sliders were the most abundant species, but northern map turtles were 8× more abundant than pond sliders in basking trap catches. We saw relatively few snapping turtles basking even though population estimates indicated they were the second most abundant species. Populations of all species were dominated by adult individuals. Sex ratios of three species differed significantly from 1:1. Visual surveys were the most efficient method for determining the presence of species, but capture methods were necessary to obtain size and sex data.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A comparison of turtle sampling methods in a small lake in Standing Stone State Park, Overton County, Tennessee
Series title Journal of the Tennessee Academy of Science
Volume 86
Issue 2
Year Published 2011
Language English
Publisher Tennessee Academy of Science
Publisher location Nashville, TN
Contributing office(s) Coop Res Unit Atlanta
Description 8 p.
First page 45
Last page 52
Country United States
State Tennessee
County Overton County
Other Geospatial Standing Stone State Park
Online Only (Y/N) N
Additional Online Files (Y/N) N