Washington State University

School of the Environment

Watershed Lab

Steffen Center


Earth Science/Geology

Cougar Research

PROFESSOR ROB WIELGUS (right), Director of the Large Carnivore Conservation Lab in the School of the Environment at WSU, and his former Ph.D. student Don Katnik (left), examine two 4-6 week-old cougar kittens in a study to determine population dynamics of cougars in northeast Washington, northern Idaho, and southern British Columbia.

Dr. Wielgus and his crew tracked a radio-collared mother cougar to her den, crawled in, and examined 2 kittens. The mother sat nearby watching the operation. After about 10 minutes, the crew put the kittens back in the den and left the area. Mother and kittens got back to their business of nursing and playing shortly afterwards.

In the next video, investigators Rob Weilgus, Hillary Cooley, technicians Tom and Jesse McArthur, and several undergrad ecology students, examine and mark cougar kittens with PIT tags.

Cougar MapSee how adult males create exclusive territories, and how adolescent males have overlapping territory.


For more information on cougar reseach in Washington State please visit our completed projects page or contact the director of the Large Carnivore Conservation Lab:

Rob Wielgus

(509) 335-2796

Lecture on Cougar Popultion Dynamics: see how years of cougar reseach can help inform management


Ground-breaking research conducted in the lab made the covers of Ecology and Ecological Applications: (click images for full-size covers in pdf format)



School of the Environment, PO Box 642812, Washington State University, Pullman WA 99164-2812, 509-335-3009, Contact Us
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