Ripple, William

Position Type: 
Job Title: 
Professor; Director, Trophic Cascades Program
Forest Ecosystems & Society
Office Location: 

314 Richardson Hall

Phone Number: 
(541) 737-3056
Fax Number: 
(541) 737-1393
B.S., 1974, South Dakota State University
M.S., 1978, University of Idaho
Ph.D., 1984, Oregon State University
Research Areas: 
  • Forest, Wildlife, and Landscape Ecology
Research Interests: 
  • Landscape Ecology
  • Wildlife Ecology
Wolf, ungulate, aspen ecology; trophic cascades; mesopredators; plant/animal interactions; ecology of fear; wildlife habitat analysis; landscape ecology; biodiversity; historical ecology; conservation biology; riparian ecology.


Graduate Major Advisor
Graduate Students: 
Courses Taught: 
FOR 421/521
Spatial Analysis of Forest Landscapes
Selected Publications: 
  1. Eisenberg, C., D.E. Hibbs, and W.J. Ripple. 2015. Effects of predation risk on elk (Cervus elaphus) landscape use in a wolf (Canis lupus) dominated system. Can. J. Zool. 93: 99-111.

  2. Painter, L.E, R.L. Beschta, E.J. Larsen, and W.J. Ripple. 2015. Recovering aspen follow changing elk dynamics in Yellowstone: evidence of a trophic cascade? Ecology 96(1): 252-263.

  3. Batchelor, J.L, W.J. Ripple, T.M. Wilson and L.E. Painter. 2015. Restoration of Riparian Areas Following the Removal of Cattle in the Northwestern Great Basin. Environmental Management DOI: 10.1007/s00267-014-0436-2.

  4. Beschta, R., and W.J. Ripple. 2015. Divergent patterns of riparian cottonwood recovery after the return of wolves in Yellowstone, USA. Ecohydrology 8: 58-66.

  5. Ripple, W.J., et al. 2014. Status and Ecological Effects of the World's Largest Carnivores. Science 343. doi: 10.1126/science.1241484.

  6. Ripple, W.J. and Beschta, R.L. 2012. Large predators limit herbivore densities in northern forest ecosystems. Eur J Wildl Res: DOI 10.1007/s10344-012-0623-5.

  7. Painter, L.E, R.L. Beschta, E.J. Larsen, and W.J. Ripple. 2014. After long-term decline, are aspen recovering in northern Yellowstone? Forest Ecology and Management 329: 108-117.

  8. Ripple, W.J., Beschta, R.L., Fortin, J.K. and C.T. Robbins. 2013. Trophic cascades from wolves to grizzly bears in Yellowstone. Journal of Animal Ecology doi: 10.1111/1365-2656.12123, 2013.

  9. Beschta, R., and W.J. Ripple. 2013. Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic cascade - Comment. Ecology. [doi:10.1890/11-0063.1] 94(6): 1420-1425.

  10. Ripple, W.J., Wirsing, A.J., Wilmers, C.C, and Letnic, M. 2013. Widespread mesopredator effects after wolf extirpation. Biological Conservation 160: 70-79.

  11. Ripple, W.J, Painter, L.E., Beschta, R.L. and C.C. Gates. 2010. Wolves, Elk, Bison, and Secondary Trophic Cascades in Yellowstone National Park. The Open Ecology Journal 3: 31-37.

  12. Beschta, R.L., and Ripple, W.J. 2012. Berry-producing shrub characteristics following wolf reintroduction in Yellowstone National Park. Forest Ecology and Management 276: 132-138.