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Dr. Stephen K. Hamilton

Ecosystem Ecologist, Biogeochemist | PhD, University of California at Santa Barbara

wetlands, streams, rivers and lakes, agricultural ecology, water quality, tropical rivers, floodplains

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Stephen Hamilton’s principal research interests involve ecosystem ecology and biogeochemistry, with particular emphasis on water. He has studied wetlands, streams, lakes, reservoirs, and watersheds, as well as agricultural cropping systems and their effects on water and climate. His research draws on multiple disciplines to understand and mitigate environmental problems and inform environmental protection and conservation.

Hamilton’s research publications include studies of nutrient cycling, greenhouse gas emissions, invasive species, food webs, remote sensing, conservation planning, and hydrology. He has received awards for his engagement with environmental issues from the Michigan Environmental Council and the Society for Freshwater Science, and is a Fellow of that society.

Hamilton has conducted a variety of studies in tropical floodplain and river ecosystems of South America and Australia, and presently works with several research groups in Brazil on hydropower effects on river systems.

Hamilton also works part-time as a Professor at Michigan State University’s Kellogg Biological Station. Here, Hamilton has recently served as the Lead Principal Investigator of the National Science Foundation’s Long Term Ecological Research site. He is also a Project Leader in the Department of Energy’s Great Lakes Bioenergy Research Center.

McGill, Bonnie, Yvan Altchenko, Stephen K. Hamilton, Piet K. Kenabatho, Steven R. Sylvester, and Karen G. Villholth. 2019. “Complex Interactions Between Climate Change, Sanitation, And Groundwater Quality: A Case Study From Ramotswa, Botswana”. Hydrogeology Journal 27 (3): 997 - 1015. doi:10.1007/s10040-018-1901-4.
Hussain, M. Z., Stephen K. Hamilton, Ajay K. Bhardwaj, B. Basso, Kurt D. Thelen, and G. P. Robertson. 2019. “Evapotranspiration And Water Use Efficiency Of Continuous Maize And Maize And Soybean In Rotation In The Upper Midwest U.s.”. Agricultural Water Management 221: 92 - 98. doi:10.1016/j.agwat.2019.02.049.
Kelly, Victoria R., Stuart E. G. Findlay, Stephen K. Hamilton, Gary M. Lovett, and Kathleen C. Weathers. 2019. “Seasonal And Long-Term Dynamics In Stream Water Sodium Chloride Concentrations And The Effectiveness Of Road Salt Best Management Practices”. Water, Air, & Soil Pollution 230 (1). doi:10.1007/s11270-018-4060-2.
Richmond, Erinn K., Emma J. Rosi, David M. Walters, Jerker Fick, Stephen K. Hamilton, Tomas Brodin, Anna Sundelin, and Michael Grace. 2018. “A Diverse Suite Of Pharmaceuticals Contaminates Stream And Riparian Food Webs”. Nature Communications 9 (1). doi:10.1038/s41467-018-06822-w.
Abraha, Michael, Stephen K. Hamilton, Jiquan Chen, and Philip Robertson. 2018. “Ecosystem Carbon Exchange On Conversion Of Conservation Reserve Program Grasslands To Annual And Perennial Cropping Systems”. Agricultural And Forest Meteorology 253-254: 151 - 160. doi:10.1016/j.agrformet.2018.02.016.
Hamilton, Stephen K., M. Z. Hussain, Christopher Lowrie, B. Basso, and G. P. Robertson. 2018. “Evapotranspiration Is Resilient In The Face Of Land Cover And Climate Change In A Humid Temperate Catchment”. Hydrological Processes 32 (5): 655-663. doi:10.1002/hyp.11447.
McGill, Bonnie, Stephen K. Hamilton, N. Millar, and G. P. Robertson. 2018. “The Greenhouse Gas Cost Of Agricultural Intensification With Groundwater Irrigation In A Midwest U.s. Row Cropping System”. Global Change Biology 24 (12): 5948 - 5960. doi:10.1111/gcb.14472.
Abraha, Michael, Ilya Gelfand, Stephen K. Hamilton, Jiquan Chen, and Philip Robertson. 2018. “Legacy Effects Of Land Use On Soil Nitrous Oxide Emissions In Annual Crop And Perennial Grassland Ecosystems”. Ecological Applications 28 (5): 1362-1369. doi:10.1002/eap.1745.
Dutton, Christopher L., Amanda L. Subalusky, Stephen K. Hamilton, Emma J. Rosi, and D.M. Post. 2018. “Organic Matter Loading By Hippopotami Causes Subsidy Overload Resulting In Downstream Hypoxia And Fish Kills”. Nature Communications 9 (1). doi:10.1038/s41467-018-04391-6.
Robertson, Philip, Stephen K. Hamilton, Bradford L. Barham, Bruce E. Dale, Cesar Izaurralde, Randall D. Jackson, Douglas A. Landis, Scott M. Swinton, Kurt D. Thelen, and James M. Tiedje. 2017. “Cellulosic Biofuel Contributions To A Sustainable Energy Future: Choices And Outcomes”. Science 356 (6345). doi:10.1126/science.aal2324.
Norman, B. M., M.R. Whiles, S. M. Collins, A.S. Flecker, Stephen K. Hamilton, S.L. Johnson, Emma J. Rosi, et al. 2017. “Drivers Of Nitrogen Transfer In Stream Food Webs Across Continents”. Ecology 98 (12): 3044 - 3055. doi:10.1002/ecy.2009.
Reis, Vanessa, Virgilio Hermoso, Stephen K. Hamilton, Douglas Ward, Etienne Fluet-Chouinard, Bernhard Lehner, and Simon Linke. 2017. “A Global Assessment Of Inland Wetland Conservation Status”. Bioscience 67 (6): 523 - 533. doi:10.1093/biosci/bix045.
Soranno, Patricia A, Linda C. Bacon, Michael Beauchene, Karen E. Bednar, Edward G. Bissell, Claire K Boudreau, Marvin G Boyer, et al. 2017. “Lagos-Ne: A Multi-Scaled Geospatial And Temporal Database Of Lake Ecological Context And Water Quality For Thousands Of Us Lakes”. Gigascience 6 (12): 1 - 22. doi:10.1093/gigascience/gix101.
Tank, Jennifer L., E. Marti, T. Riis, D. von Schiller, Alexander J. Reisinger, Walter K. Dodds, M.R. Whiles, et al. 2017. “Partitioning Assimilatory Nitrogen Uptake In Streams: An Analysis Of Stable Isotope Tracer Additions Across Continents”. Ecological Monographs 88 (1): 120-138. doi:10.1002/ecm.1280.
White, Jeffrey D, Orlando Sarnelle, and Stephen K. Hamilton. 2017. “Unexpected Population Response To Increasing Temperature In The Context Of A Strong Species Interaction”. Ecological Applications 27 (5): 1657-1665. doi:10.1002/eap.1558.
Fantin-Cruz, Ibraim, Olavo Pedrollo, Pierre Girard, Peter Zeilhofer, and Stephen K. Hamilton. 2016. “Changes In River Water Quality Caused By A Diversion Hydropower Dam Bordering The Pantanal Floodplain”. Hydrobiologia 768 (1): 223-238. doi:10.1007/s10750-015-2550-4.
Abraha, Michael, Ilya Gelfand, Stephen K. Hamilton, Changliang Shao, Yahn-Jauh Su, Philip Robertson, and Jiquan Chen. 2016. “Ecosystem Water-Use Efficiency Of Annual Corn And Perennial Grasslands: Contributions From Land-Use History And Species Composition”. Ecosystems 19 (6): 1001-1012. doi:10.1007/s10021-016-9981-2.
Ruan, Leilei, Ajay K. Bhardwaj, Stephen K. Hamilton, and Philip Robertson. 2016. “Nitrogen Fertilization Challenges The Climate Benefit Of Cellulosic Biofuels”. Environmental Research Letters 11. doi:10.1088/1748-9326/11/6/064007.
Kinsman-Costello, Lauren E., Stephen K. Hamilton, Jonathan M. O'Brien, and Jay T. Lennon. 2016. “Phosphorus Release From The Drying And Reflooding Of Diverse Shallow Sediments”. Biogeochemistry 130 (1-2): 159-176. doi:10.1007/s10533-016-0250-4.
Oliveira, Marcia D., Monica C. S. Campos, Esteban M. Paolucci, Maria C. D. Mansur, and Stephen K. Hamilton. 2015. “Colonization And Spread Of Limnoperna Fortunei In South America”. In Limnoperna Fortunei: The Ecology, Distribution And Control Of A Swiftly Spreading Invasive Fouling Mussel, 333-355. doi:10.1007/978-3-319-13494-9_19.

Current Projects