Greg Jacobs
he/him/his
Research Associate, Natural Resources and the Environment
I am interested in how life history, movement, and migration of organisms drive population dynamics and biotic interactions; how human activity may interact with these processes; and how such information may better inform conservation and restoration of aquatic systems. I pursue these interests using a variety of tools to investigate the population ecology and conservation of (mostly) freshwater and diadromous fishes; including studying how temporal and spatial variation in environmental conditions can influence migratory fish life cycles, and how migrations influence the productivity of tributary stream ecosystems.
Education
- PhD, Ecology, University of Georgia
- MS, Resource Ecology and Management, University of Michigan
- BS, Biology, Alma College
Recent Research
- Jackson, J.R., *G.R. Jacobs, A.W. Latzka, T. Landsman, S.D. Kruger, B.P. Young, and A.R. McCune. 2024. Spawning migration, sex-specific home ranges and seasonal site fidelity in a lacustrine population of Bowfin (Amia ocellicauda). Environmental Biology of Fishes 107: 1369-1388. https://doi.org/10.1007/s10641-024-01585-4. *Jacobs and Jackson contributed equally as co-first authors
- Jacobs, G.R., R.F. Thurow, C. Petrosky, C.W. Osenberg, S.J. Wenger. 2024. Life-cycle modeling reveals high recovery potential of at-risk wild Chinook salmon via improved migrant survival. Canadian Journal of Fisheries and Aquatic Sciences 81(3): 297-310. https://doi.org/10.1139/cjfas-2023-0167
- Pease, A.A., G.R. Jacobs, M. Mendoza-Carranza, R. Rodiles-Hernández, S.J. Wenger, and K.A. Capps. 2023. Otolith microchemistry highlights the importance of extensive connectivity for conservation of an iconic migratory fish in a large tropical river basin. Aquatic Conservation: Marine and Freshwater Ecosystems 33(9): 969-980. https://doi.org/10.1002/aqc.4003
- Jacobs, G.R., R.F. Thurow, J.M. Buffington, D.J. Isaak, S.J. Wenger. 2021. Disturbance, climate, and habitat: understanding the distribution of Chinook salmon redds in a large river network. Transactions of the American Fisheries Society 150: 8-23. https://doi.org/10.1002/tafs.10270.
- Valentine, M.J., B. Ciraola, G.R. Jacobs, C. Arnot, P.J. Kelly, C.C. Murdock. 2020. Effects of seasonality and land use on the diversity, relative abundance, and distribution of mosquitoes on St. Kitts, West Indies. Parasites & Vectors 13(1):1-14.
- Kough, A.S., G.R. Jacobs, D. Gorsky, P.W. Willink. 2018. Diel timing of Lake Sturgeon (Acipenser fulvescens) activity revealed by satellite tags in the Laurentian Great Lake Basin. Journal of Great Lakes Research 44(1):157-165.
- Jacobs, G.R., E.K. Bruestle, A. Hussey, D. Gorsky, and A. Fisk. 2017. Invasive species alter ontogenetic shifts in the trophic ecology of Lake Sturgeon (Acipenser fulvescens) in the Niagara River and Lake Ontario. Biological Invasions 19(5):1533-1546.
Contact Information
G08 Fernow Hall, Ithaca, 14853
gj93 [at] cornell.edu