AB, Bowdoin College; MEM, Yale University; PhD, University of Wyoming
Wildlife ecology, management, and policy
Many wildlife species are disproportionately impacted by human-caused environmental changes. My research attempts to understand, and help conserve, some of the key ecological processes that are now at stake as a result.
My current projects focus on the ecology and conservation of large mammals in the Greater Yellowstone Ecosystem (GYE) of the Northern Rockies and the San Guillermo Biosphere Reserve (SGBR) of the southern Andes. The vast areas that these species wander – whether they be carnivores hunting their prey, or ungulates migrating seasonally to find green grass or shelter from the snow – mean that they often come into conflict with human communities. Identifying and recommending new management and policy based on my findings is a high priority in my work.
I also believe that wildlife management and policy depend strongly on public understanding and support, so my projects often have a strong, interdisciplinary outreach component.
Much of this work can be placed within three broad categories:
Ecology of large carnivores and their ungulate prey
Ecology and management of human-wildlife conflicts
The role of wildlife in large landscape conservation
I currently have research opportunities on my projects in Wyoming and Argentina, and welcome graduate student and postdoc inquiries for 2018.
Perrig, P., E. Donadio, A.D. Middleton, and J.N. Pauli. In press. Predation subsidizes an obligate scavenger in the high Andes. Journal of Animal Ecology.
Sawyer, H., A.D. Middleton, K. Monteith, M. Hayes, and M.J. Kauffman. In press. The extra mile: Ungulate migration distance alters use of seasonal range and exposure to anthropogenic risk. Ecosphere.
Merkle, J.A., K.L. Monteith, E.O. Aikens, M.M. Hayes, K.R. Hersey, A.D. Middleton, B.A. Oates, H. Sawyer, B.M. Scurlock, and M.J. Kauffman. 2016. Large herbivores surf waves of green-up in spring. Proceedings of the Royal Society of London B 283:20160456.
Nelson, A.A., M.J. Kauffman, A.D. Middleton, M.D. Jimenez, D.E. McWhirter, and K. Gerow. 2015. Native prey distribution and migration mediates wolf predation on domestic livestock in the Greater Yellowstone Ecosystem. Canadian Journal of Zoology 94:291-299.
Middleton, A.D., M.J. Kauffman, D.E. McWhirter, R.C. Cook, J.G. Cook, M.D. Jimenez, S.E. Albeke, H. Sawyer, and P.J. White. 2013. Linking antipredator behavior to prey demography reveals the limited risk effects of an actively hunting large carnivore. Ecology Letters 16:1023-1030.
Middleton, A.D., T.A. Morrison, J.K. Fortin, M.J. Kauffman, C.T. Robbins, K.M. Proffitt, P.J. White, D.E. McWhirter, T.M. Koel, D. Brimeyer, and W.S. Fairbanks. 2013. Grizzly bear predation links the loss of native trout to the demography of migratory elk in Yellowstone. Proceedings of the Royal Society B – Biological Sciences 280:20130870.
Middleton, A.D., M.J. Kauffman, D.E. McWhirter, J.G. Cook, R.C. Cook, A.A. Nelson, M.D. Jimenez, and R.W. Klaver. 2013. Rejoinder: challenge and opportunity in the study of ungulate migration amid environmental change. Ecology 94:1280-86.
Middleton, A.D., M.J. Kauffman, D.E. McWhirter, J.G. Cook, R.C. Cook, A.A. Nelson, M.D. Jimenez, and R.W. Klaver. 2013. Animal migration amid shifting patterns of predation and phenology: Lessons from a Yellowstone elk herd. Ecology 94:1245-56.
Sawyer, H. M.J. Kauffman, A.D. Middleton, T.A. Morrison, R.M. Nielson, and T.B. Wyckoff. 2013. A framework for understanding barrier effects on migratory ungulates. Journal of Applied Ecology 50:68-78.
Nelson, A.A., M.J. Kauffman, A.D. Middleton, M.D. Jimenez, D.E. McWhirter, J.J. Barber, and K. Gerow. 2012. Elk migration patterns and human activity influence wolf habitat selection in the Greater Yellowstone Ecosystem. Ecological Applications 22:2293-2307.
Cross, P.C., E.K. Cole, A.P. Dobson, W.H. Edwards, K.L. Hamlin, G. Luikart, A.D. Middleton, B.M. Scurlock, and P.J. White. 2010. Probable causes of increasing elk brucellosis in the Greater Yellowstone Ecosystem. Ecological Applications 20:278-288.
POPULAR (NON-ACADEMIC) WRITING
Middleton, A.D. Seeing Yellowstone: Science at its limits in a conservation crucible. pp. 36-51 in “Invisible Boundaries: Exploring Yellowstone’s Great Animal Migrations” ed. Karen B. McWhorter. Buffalo Bill Center of the West, Cody, WY. 80pp.
Middleton, A.D., producer. "Elk River” film. With J. Nichols and J. Riis.
Middleton, A.D., C.R. Preston and K. McWhorter, co-curators. "Invisible Boundaries: Exploring Yellowstone's Great Animal Migrations." Buffalo Bill Center of the West and National Geographic Society.
I currently serve as a Fellow of the National Geographic Society and a Trustee of the Buffalo Bill Center of the West.