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The USGS Sage-Grouse and Sagebrush Ecosystem Research Program is led out of the USGS National Center, Ecosystems Mission Area with leadership and research scientists located at Science Centers in 9 western States.


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Lief Wiechman

Sagebrush Ecosystem Specialist

Employee Directory

Job Title Name Email Phone
Supervisory Research Ecologist Matthew Brooks 559-240-7622
Research Wildlife Biologist Michael Casazza 530-669-5075
Bureau Approving Official, Ecologist Geneva W. Chong, Ph.D. 703-648-6774
Research Wildlife Biologist Peter Coates 530-669-5073
Research Ecologist Robb Diehl, Ph.D. 406-994-7481
Physical Scientist Doug Ouren 970-226-9476