Dr. Stephen K. Hamilton

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

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

845 677-7600 x237

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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.

Organic matter stocks increase with degree of invasion in temperate inland wetlands
Martina, J.P., Stephen K. Hamilton, M. R. Turetsky, and C. J. Phillippo. 2014. “Organic Matter Stocks Increase With Degree of Invasion in Temperate Inland Wetlands”. Plant and Soil 385 (1-2): 107-23. doi:10.1007/s11104-014-2211-9.
Plant-mediated transport and isotopic composition of methane from shallow tropical wetlands
Hamilton, Stephen K., Suzanne J. Sippel, Jeffrey P. Chanton, and John M. Melack. 2014. “Plant-Mediated Transport and Isotopic Composition of Methane from Shallow Tropical Wetlands”. Inland Waters 4 (4): 369-76. doi:10.5268/IW-4.4.734.
Re-flooding a historically drained wetland leads to rapid sediment phosphorus release
Kinsman-Costello, Lauren E., Jonathan O’Brien, and Stephen K. Hamilton. 2014. “Re-Flooding a Historically Drained Wetland Leads to Rapid Sediment Phosphorus Release”. Ecosystems 17 (4): 641-56. doi:10.1007/s10021-014-9748-6.
The relative importance of groundwater and its ecological implications in diverse glacial wetlands
Thobaben, Eric T., and Stephen K. Hamilton. 2014. “The Relative Importance of Groundwater and Its Ecological Implications in Diverse Glacial Wetlands”. American Midland Naturalist 172 (2): 205-18. doi:10.1674/0003-0031-172.2.205.
Understanding and overcoming baseline isotopic variability in running waters
Jardine, T. D., W. L. Hadwen, Stephen K. Hamilton, S. Hladyz, S. M. Mitrovic, K. A. Kidd, W . Y. Tsoi, et al. 2014. “Understanding and Overcoming Baseline Isotopic Variability in Running Waters”. River Research and Applications 30 (2): 155-65. doi:10.1002/rra.2630.
Productivity, disturbance and ecosystem size have no influence on food chain length in seasonally connected rivers
M. y Warfe, Danielle, Timothy D. Jardine, Neil E. Pettit, Stephen K. Hamilton, Bradley J. Pusey, Stuart E. Bunn, Peter M. Davies, and Michael M. Douglas. 2013. “Productivity, Disturbance and Ecosystem Size Have No Influence on Food Chain Length in Seasonally Connected Rivers”. PLOS One 8 (6). doi:10.1371/journal.pone.0066240.
Quantifying the production of dissolved organic nitrogen in headwater streams using <sup>15</sup>N tracer additions
Johnson, Laura T., Jennifer L. Tank, Robert O. Hall, Patrick J. Mulholland, Stephen K. Hamilton, Maurice Valett, Jackson R. Webster, et al. 2013. “Quantifying the Production of Dissolved Organic Nitrogen in Headwater Streams Using <sup>15< Sup>N Tracer Additions”. Limnology and Oceanography 58 (4): 1271-85. doi:10.4319/lo.2013.58.4.1271.
A source of terrestrial organic carbon to investigate the browning of aquatic ecosystems
Lennon, Jay T., Stephen K. Hamilton, Mario E. Muscarella, Stuart Grandy, Kyle Wickings, and Stuart E. Jones. 2013. “A Source of Terrestrial Organic Carbon to Investigate the Browning of Aquatic Ecosystems”. PLOS One 8 (10). doi:10.1371/journal.pone.0075771.
Assessing the seasonal dynamics of inundation, turbidity, and aquatic vegetation in the Australian wet-dry tropics using optical remote sensing
Ward, D. P., Stephen K. Hamilton, T. D. Jardine, N. E. Pettit, E. K. Tews, J. M. Olley, and S. E. Bunn. 2013. “Assessing the Seasonal Dynamics of Inundation, Turbidity, and Aquatic Vegetation in the Australian Wet-Dry Tropics Using Optical Remote Sensing”. Ecohydrology 6 (2): 312-23. doi:10.1002/eco.1270.
From set-aside grassland to annual and perennial cellulosic biofuel crops: Effects of land use change on carbon balance
Zenone, Terenzio, Ilya Gelfand, Jiquan Chen, Stephen K. Hamilton, and Philip Robertson. 2013. “From Set-Aside Grassland to Annual and Perennial Cellulosic Biofuel Crops: Effects of Land Use Change on Carbon Balance”. Agricultural and Forest Meteorology 182: 1-12. doi:10.1016/j.agrformet.2013.07.015.