Dirac Twidwell


·Twidwell Research Team & Focus

Dirac Twidwell


Area of Expertise: Range and Forage Sciences

B.S., Biological Sciences, Missouri University of Science and Technology (formerly University of Missouri-Rolla), 2003.

M.S., Rangeland Ecology and Management, Oklahoma State University, 2006.

Ph.D., Ecosystem Science and Management, Texas A&M University, 2012.

Area of Focus

  • Rangeland and Fire Ecology

Research Interests

  • Social-ecological resilience to extreme disturbance (e.g. fire) and climatic events
  • Resilience, hysteresis, and thresholds in alternative states and their applications in ecosystem management
  • Trade-offs of changing land use and disturbance regimes in coupled human-natural systems
  • Forecasting threats to biodiversity and ecosystem services
  • Disaster avoidance and wildfire management at the rangeland-urban interface
  • Integration of science in natural resource policy and management

Courses Taught


Google Scholar publication list
  • Twidwell D, CH Bielski, R Scholtz, SD Fuhlendorf. 2020. Advancing fire ecology for 21st century rangelands. Rangeland Ecology and Management (in press)
  • Naugle DE, BW Allred, MO Jones, D Twidwell. 2020. Coproducing science to inform working lands: The next frontier in nature conservation. Bioscience 70:90-96.
  • Uden DR, D Twidwell, CR Allen, MO Jones, DE Naugle, JD Maestas, BW Allred. 2019. Spatial imaging and screening for regime shifts. Frontiers in Ecology and Evolution 7:407.
  • Twidwell, D., W.E. Rogers, S.D. Fuhlendorf, C.L. Wonkka, D.M. Engle, J.R. Weir, U.P. Kreuter, C.A. Taylor, Jr. 2013. The rising Great Plains fire campaign: citizens’ response to woody plant encroachment. Frontiers in Ecology and the Environment 11:e64-e71.
  • Allred, B.W., W.K. Smith, D. Twidwell, J.H. Haggerty, S.J. Running, D.E. Naugle, S.D. Fuhlendorf. 2015. Ecosystem services lost to oil and gas in North America. Science 348:401-402.