Ripple, William J.
Professor; Director, Trophic Cascades Program
314 Richardson Hall
Wildlife habitat analysis, landscape ecology
- B.S., 1974, South Dakota State University
- M.S., 1978, University of Idaho
- Ph.D., 1984, Oregon State University
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.
- The Leopold Project - The goal of Leopold Project is to continue the work Aldo Leopold started on topics that intersect forestry and wildlife science and ecosystems especially predators, ungulates, and forests.
- The Aspen Project - An interactive web page designed to examine the decline of Quaking Aspen throughout the western United States. This site has had 13,000 hits since 1998.
- The Lewis and Clark Project - Wildlife along the Lewis & Clark Trail studying human wildlife associations as a study in historical ecology.
- The Wolves in Nature Project - The purpose here is to investigate the role of a top predator, the gray wolf (Canis Lupus), in structuring ecological communities.
- Species Range Contractions - The purpose of this study is to compare historic and current ranges of both carnivores and ungulates, identify large-scale patterns in species ranges and determine the degree of human influence on species range changes.
A full list of publications, along with links to the articles, can be found on the Trophic Cascades website here.
- 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.
- 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.
- Ripple, W.J., Wirsing, A.J., Wilmers, C.C, and Letnic, M. 2013. Widespread mesopredator effects after wolf extirpation. Biological Conservation 160: 70-79.
- 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.
- Beschta, R.L., and Ripple, W.J. 2012. The role of large predators in maintaining riparian plant communities and river morphology. Geomorphology 157-158: 88-98.
- 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.
- Painter, L.E. and W.J. Ripple. 2012. Effects of bison on willow and cottonwood in northern Yellowstone National Park. Forest Ecology and Management 264: 150-158.
- Ripple, W.J. and Beschta, R.L. 2012. Trophic cascades in Yellowstone: The first 15 years after wolf reintroduction Biological Conservation. 145: 205-213. doi:10.1016/j.biocon.2011.11.005.
- Ripple, W.J., Wirsing, A.J., Beschta, R.L., and S.W. Buskirk. 2011. Can Restoring Wolves Aid in Lynx Recovery? Wildlife Society Bulletin 35(4): 514-518. DOI: 10.1002/wsb.59.
- Wirsing, A.J., and W.J. Ripple. 2011. A comparison of shark and wolf research reveals similar behavioral responses by prey. Frontiers in Ecology and the Environment 9(6): 335-341.
- 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.
- Beschta, R.L., and W.J. Ripple. 2010. Mexican wolves, elk, and aspen in Arizona: Is there a trophic cascade? Forest Ecology and Management 260: 915-922
- Ripple, W.J and Van Valkenburgh, B. 2010. Linking top-down forces to the Pleistocene Megafaunal extinctions. Bioscience 60(7): 516-526.
- Laundre, J.W., Hernandez, L., and Ripple, W.J. 2010 The landscape of fear: Ecological implications of being afraid. The Open Ecology Journal 3: 1-7.
- Beschta, R.L. and Ripple, W.J. 2010. Recovering riparian plant communities with wolves in northern Yellowstone, USA. Restoration Ecology 18(3): 380-389.
- Ripple, W.J., Rooney, T.P., and Beschta, R.L. 2010. Large predators, deer, and trophic cascades in boreal and temperate ecosystems. in Trophic Cascades: Predators, Prey, and the Changing Dynamics of Nature, edited by J. Terborgh and J. Estes. Island Press: 141-161.
- Manning, A.D., Gordon, I.J., and Ripple, W.J. 2009. Restoring landscapes of fear with wolves in the Scottish Highlands. Biological Conservation.
- Beschta, R.L. and Ripple, W.J. 2009. Large predators and trophic cascades in terrestrial ecosystems of the western United States. Biological Conservation 142: 2401-2414.
- Halofsky, J.S. Ripple W.J. and Beschta, R.L. 2008. Recoupling fire and aspen recruitment after wolf reintroduction in Yellowstone National Park, USA. Forest Ecology and Management 256: 1004-1008.
- Ripple, W.J. and Beschta, R.L. 2008. Trophic cascades involving cougar, mule deer, and black oaks in Yosemite National Park. Biological Conservation. 141: 1249-1256.
- Hollenbeck, J. P., and Ripple W.J. 2008. Aspen snag dynamics, cavity-nesting birds, and trophic cascades in Yellowstone's northern range. Forest Ecology and Management. 255:1095-1103.
- Halofsky, J.S. and Ripple W.J. 2008. Linkages between wolf presence and aspen recruitment in the Gallatin elk winter range of southwestern Montana, USA. Forestry. 81:195-207.
- Halofsky, J.S. and Ripple W.J. 2008. Fine-scale predation risk on elk after wolf-reintroduction in Yellowstone National Park, USA. Oecologia. 155:869–877.
- Beschta, R.L. and Ripple, W.J. 2007. Increased willow heights along northern Yellowstone’s Blacktail Deer Creek following wolf reintroduction. Western North American Naturalist 67:613-617.
- Hollenbeck, J. P., and Ripple W.J. 2007. Aspen and conifer heterogeneity effects on bird diversity in the northern Yellowstone ecosystem. Western North American Naturalist 67:92-101.
- Ripple, W.J. and Beschta, R.L. 2007. Restoring Yellowstone's aspen with wolves. Biological Conservation 138: 514-519.
- Beschta, R.L. and Ripple W.J. 2007. Wolves, elk, and aspen in the winter range of Jasper National Park, Canada. Canadian Journal of Forest Research. 37(10): 1873-1885.
- Hollenbeck, J. P., and Ripple W.J. 2007. Aspen patch and migratory bird relationships in the northern Yellowstone ecosystem. Landscape Ecology 22:1411-1425.
- Ripple W.J., Beschta R.L. 2007. Hardwood tree decline following the loss of large carnivores on the Great Plains, USA. Frontiers in Ecology and the Environment in press. 5:241-246.
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