Patrick E. Clark
Rangeland Scientist
U.S. Department of Agriculture, ARS
Livestock Grazing Behavior
Dr. Clark is a Rangeland Scientist employed by the U.S. Department of Agriculture, Agriculture Research Service’s Northwest Watershed Research Center in Boise, Idaho. He received his BS (1986) in Animal Science at Oregon State University and Ph.D. in Rangeland Management and Ecology at OSU (1996) studying livestock-wildlife interactions. He has been with the USDA since 1997.
His research interests include analysis of ecosystem change and prediction of effects of managerial actions on agro-ecological systems. He is currently investigating the effects of disturbances such as wild and prescribed fire, grazing, invasive plants, and most recently, re-colonizing grey wolves and grizzly bear on the vegetation, water quality, livestock, and wildlife of the sagebrush steppe.