Skip to main content
U.S. flag

An official website of the United States government

Jay Diffendorfer

I'm an applied ecologist working at the Geosciences and Environmental Change Science Center.

Trained as an ecologist, I originally worked on spatial ecology and conservation biology, including a USGS-funded post doc at University of Miami modelling reptile and amphibian responses to possible restoration scenarios in the Everglades.  I then worked as an assistant and full professor at San Diego State University, studying relationships between urbanization, fire, and invasive species on a native flora and fauna in southern California. This field-oriented research involved radiotelemetry, capture-recapture, and vegetation studies.  I left San Diego State University and spent 4 years at the Illinois Natural History Survey where my research began to expand into disease ecology and agro-ecosystems.  Since arriving at USGS in 2008, I have continued to expand my research focus and currently work on science related to the energy-environment nexus, ecosystem services, and applied ecology.


Professional Experience

  • 2014-            Research Scientist and Supervisor, Geosciences and Environmental Change Science Center, USGS, Lakewood, Colorado

  • 2008-2014    Research Scientist, Geosciences and Environmental Change Science Center, USGS, Lakewood, Colorado

  • 2004-2008    Associate Scientist, Illinois Natural History Survey, Champaign, Illinois

  • 1998-2004    Assistant/Associate Professor, San Diego State University, San Diego, California

  • 1995-1998    Postdoctoral research with USGS, University of Miami, Miami, Florida

Education and Certifications

  • University of Kansas, Ph.D., (Ecology), 1995

  • Ohio University, BS, (Wildlife Biology), 1989

Science and Products