Cooperative Fish and Wildlife Research Units Program: Arkansas
Education, Research and Technical Assistance for Managing Our Natural Resources

Arkansas Project

Population demography and connectivity of Spotted Turtles on an urban military installation

March 2016 - August 2020


Participating Agencies

  • University of Arkansas Graduate School

Spotted turtles are considered endangered by the IUCN and are a Species of Greatest Conservation Need in all 21 U.S. states in which they occur, including Virginia where they were once common. Northern Virginia is one of the fastest developing areas of the country and spotted turtle habitat has been rapidly lost. One area where they are still abundant is on the protected Fort Belvoir, VA. Working with Dr. Jinelle Sperry of the US Army Corps of Engineers, graduate student Ellery Lassiter and I are studying the population demography and movement patterns of turtles on the installation. Using capture-mark-recapture techniques as well as radio-telemetry we are exploring how the populations on Fort Belvoir are faring, if turtles from different areas of the installation are connected, and if Fort Belvoir is acting as a source population for other nearby natural areas. Results from this study will directly inform management activities on Fort Belvoir and will assist the installation biologists with consultation with the USFWS if the species is listed.

Research Publications Publication Date
Lassiter, E.V., J.H. Sperry, and B.A. DeGregorio. 2023. Movement ecology of adult and juvenile spotted turtles (Clemmys guttata) in a seasonally dynamic environment. Wildlife Research | Abstract April 2023
Presentations Presentation Date
Spotted turtle (Clemmys guttata) movement patterns in an urbanized landscape. Lassiter, E.V., B.A. DeGregorio, and J.H. Sperry. 2020. Arkansas Chapter of the Wildlife Society March 2020
Ruther, E.V., B.A. DeGregorio, and J.H. Sperry. 2020. Drivers of Spotted Turtle (Clemmys guttata) Movement and Space Use in an Urbanized Landscape September 2020
Lassiter, E.R., J.H. Sperry, and B.A. DeGregorio. 2019. Why did the turtle cross the wetland? Poster Presentation - Spotted, Blanding's and Wood Turtle Symposium. November 2019
Theses and Dissertations Publication Date
Ellery V. Lassiter. 2022. Seasonal Patterns in Activity and Occupancy Dynamics of the Imperiled Spotted Turtle (Clemmys guttata). Dissertation Defense. University of Arkansas. December 2022