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Global Change, Freshwater Ecosystem Analysis

research group led by Stephen M Powers, assistant professor, Department of Biology and Center for Reservoir and Aquatic Systems Research (CRASR) at Baylor University, Texas, USA

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s_powers@baylor.edu

We use biogeochemistry and ecosystem analysis to study global change, with emphasis on surface water bodies and watersheds. We prioritize long-term and large-scale studies, often through projects that are regional or international in scope. We value data. Interests include linkages between ecosystem types (e.g., river-lake), consequences of dams, importance of winter and seasonality, pollution legacies, as well as agricultural and urban fluxes associated with the “food-energy-water nexus.”

Would you like to know more about legacy phosphorus? Long-term ecological time series? Tools and principles for data-intensive, multi-site collaborations? Implications of ice loss? Spatial and temporal patterns in reservoirs, their tributaries, or reservoir-fed rivers?
Let’s talk.

Selected Publications
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Powers SM, Chowdhury RB, MacDonald GK, Metson GS, Beusen AHW, Bouwman AF, Hampton SE, Mayer BK, McCrackin ML, Vaccari DA. 2019. Global opportunities to increase agricultural independence through phosphorus recycling. Earth’s Future | dataset

Powers SM and Hampton SE. 2019. Open science, reproducibility, and transparency in ecology. Ecological Applications

Powers SM, Baulch H, Hampton SE, Labou SG, Lottig NR, Stanley EH. 2017. Nitrification contributes to winter oxygen depletion in seasonally frozen forested lakes. Biogeochemistry | winter chemical limnology dataset

Powers SM, Bruulsema TW, Burt TP, Chan N, Elser JJ, Haygarth PM, Howden NJK, Jarvie HP, Lyu Y, Peterson HM, Sharpley AN, Shen J, Worrall J, Zhang F. 2016. Long-term accumulation & transport of anthropogenic phosphorus in three river basins. Nature Geoscience | Feature in Science for Environment Policy | press release 1 | press release 2

Powers SM, Julian JP, Doyle MW, Stanley EH. 2013. Retention and transport of nutrients in a mature agricultural impoundment. Article featured in Research Spotlight of EOS, Transactions of the American Geophysical Union. Journal of Geophysical Research- Biogeosciences (JGRB) | download EOS feature | link to EOS feature

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