An official website of the United States government. Here's how you knowHere's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Latest Earthquake | Chat Share
As a Research Ecologist, Jeff is interested in the interactions of animals and their physical environment. Current research is focused on the ecology of turtles and tortoises and the effects of utility-scale renewable energy development (wind and solar) on wildlife, particularly in the Desert Southwest USA.
Jeff has studied the ecology and systematics of turtles and other animals for over 30 years, discovering and naming four of the world’s 356 turtle species, including three in the United States and one in Japan. Other interests include the ecological impacts of invasive species, the ecology and distribution of relict species, and the impacts of human activities (including wind and solar energy development) on wildlife and ecological patterns and processes in the Mojave and Sonoran Deserts.
Center Director - USGS, Western Ecological Research Center
B.S. (1982) and M.S. degrees (1984) Biology, George Mason University
Ph.D. (1990) Ecology, University of Georgia, Institute of Ecology
Member IUCN (World Conservation Union), Species Survival Commission, Tortoise and Freshwater Turtle Specialist Group
Fulbright Senior Specialist Award 2008 Cadi Ayyad University, Marrakech, Morocco.
Elected Fellow of The Linnean Society of London, the world's oldest active biological society.
This season's edition of the Restoration Assessment and Monitoring Program for the Southwest Newsletter contains recent program highlights including...
A recently published paper on the global status of turtles and their ecological roles generated quite a bit of media interest.
An extremely rare Mojave River western pond turtle was recently observed by U.S. Geological Survey scientists and staff from The Living Desert Zoo and...
Research on desert tortoises has received some press recently. SBSC scientists and their collaborators have been studying the influence of a wind...
How a wind energy facility is designed can influence the behavior of animal predators and their prey, according to a recent study published in The...
The Camp Verde Bugle interviewed several SBSC scientists about the 40-pound nonnative snapping turtle that had to be relocated to a new home.
Almost all of the turtles living in a southern California lake died following a large fire and years of drought, according to a new U.S. Geological...