DEPT. OF Fisheries and wildlife
OREGON STATE UNIVERSITY
I combine empirical data, fieldwork, and quantitative methods to address applied problems in ecology, conservation, and management. My focus is broad, extending from understanding how to assess the spatial extent and ecological consequences of wildlife overexploitation, to fisheries management, the ecology and conservation of predators, disease ecology, and population dynamics in a changing climate. In each case, anthropogenic impacts have altered biotic interactions, and these alterations have consequences for things that humans care about, which is where management options need to be considered. Although my work is rooted in ecology and applied mathematics, I like to cross discipline boundaries to explore implications for human livelihoods and health.
Current projects include mapping the distribution of rare forest carnivores and determining the causes of their rarity, projecting mountain goat populations under climate change scenarios, understanding the relationship between Amazonian forest fragmentation and the dynamics of infectious disease, understanding the ecology and natural history of semi-aquatic jaguars in the Pantanal of Brazil, understanding the community ecology of brown bears in salmon systems, as well as a variety of projects using environmental DNA to detect fish and quantify their abundance, and several projects using high-throughput sequencing to determine the diets of Alexander Archipelago wolves, fishers, martens, bats, and a variety of large mammals.
Peres, C.A., Emilio, T., Schietti, T., Desmoulière, S.J.M, Levi, T. 2016. Dispersal limitation induces long-term biomass collapse in overhunted Amazonian forests. Proceedings of the National Academy of Sciences. 113: 892-897
Levi, T., Massey, A.L., Holt, R.D., Keesing, F., Ostfeld, R.S., Peres, C.A. 2016. Does biodiversity protect humans against infectious disease?: Comment. Ecology. 97: 536-546
Ji, Y., Ashton, L., Pedley, S.M., Edwards, D.P., Tang, Y., Nakamura, A., Kitching, R., Dolman, P.M., Woodcock, P., Edwards, F.A., Larsen, T.H., Hsu, W.W., Benedick, S., Hamer, K.C., Wilcove, D.S., Bruce, C., Wang, X., Levi, T., Lott, M., Emerson, B.C., Yu, D.W. 2013. Reliable, verifiable, and efficient monitoring of biodiversity via metabarcoding. Ecology Letters. 16(10) 1245-1257
Pasari, J.,.Levi, T., Zavaleta, E., Tilman, D. 2013. Several scales of biodiversity affect ecosystem multifunctionality. Proceedings of the National Academy of Sciences.110:10219-10222
Levi, T., Kilpatrick, A.M., Mangel, M., Wilmers, C.C. 2012. Deer, predators, and the emergence of Lyme disease. Proceedings of the National Academy of Sciences.109:10942-10947
Levi, T., Darimont, C.T., MacDuffee, M., Mangel, M., Paquet, P., Wilmers, C.C. 2012. Using Grizzly bears to assess harvest-ecosystem tradeoffs in salmon fisheries. PLoS Biology. 10(4)
Levi, T., Wilmers, C.C. 2012. Wolves-Coyotes-Foxes: A cascade among carnivores. Ecology. 93:921-929
Levi, T., Shepard Jr., G.H., Ohl-Schacherer, J., Peres, C.A., Yu, D.W. 2009. Modeling the long-term sustainability of indigenous hunting in Manu National Park, Peru: Landscape-scale management implications for Amazonia. Journal of Applied Ecology 46: 804-814.