1:30 PM Klausmeier, Christopher^*,1, Litchman, Elena¹, ¹ Georgia Institute of Technology, Atlanta, GA Seasonal succesion in plankton communities.

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1:45 PM Diehl, Sebastian^*,1, ¹ Ludwig-Maximilians-Universitaet, Munich, Germany Enrichment with light: Effects of mixing depth on herbivore-producer dynamics in a planktonic system.

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2:00 PM Hembre, Leif ^{*,1, 2}, Peterson, Laura¹, Walsh, Emily¹, Forman, Rebecca², Engstrom, Dan³, ¹ Hamline University, St. Paul, MN, USA² University of Minnesota, St. Paul, MN, USA³ St. Croix Watershed Research Station, Marine on St. Croix, MN, USA Evolution of negative phototaxis in a Daphnia population revealed by reanimation of resting eggs.

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2:15 PM Andrews, Jeffrey^*,1, Vanni, Michael¹, Renwick, William¹, ¹ Miami University, Oxford, Ohio, USA The influence of storm subsidies on nutrient and light limitation of reservoir phytoplankton growth.

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2:30 PM Jeong, Kwang-Seuk^*,1, Ha, Kyong¹, Kim, Myoung-Chul¹, Joo, Gea-Jae¹, ¹ Pusan National Univ., Busan, S. Korea Influence of drought on the phytoplankton bloom formations in a river-reservoir system.

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2:45 PM Dawson, Amy¹, Arnott, Shelley¹, ¹ Queen's University, Kingston, Ontario The effects of intra-annual pH fluctuations on recovering zooplankton communities in Swan Lake, Sudbury, Ontario.

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3:00 PM Break.

3:15 PM Litchman, Elena^*,1, Klausmeier, Christopher¹, Schofield, Oscar², Falkowski, Paul², ¹ School of Biology, Atlanta, GA, USA² Institute of Marine and Coastal Sciences, New Brunswick, NJ Resource-based niches of phytoplankton functional groups.

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3:30 PM Sarnelle, Orlando^*,1, ¹ Department of Fisheries and Wildlife, East Lansing, MI, USA Keystone-predation revisited: Herbivore effects on phytoplankton diversity and grazing-resistance.

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3:45 PM Darcy, Tara^*,1, ¹ W. K. Kellogg Biological Station, Hickory Corners, MI Linking algal species' traits to environmental contexts: A test of the keystone predation hypothesis.

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4:00 PM Bade, Darren^*,1, Carpenter, Stephen¹, Cole, Jonathan², Pace, Michael², ¹ University of Wisconsin-Madison, Madison, Wisconsin, USA² Institute of Ecosystem Studies, Millbrook, New York, USA Exogenous and endogenous origins of DOC in lakes: Surprising results from whole lake ¹³C additions.

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4:15 PM Lennon, Jay^*,1, Pfaff, Liza¹, ¹ Dartmouth College, Hanover, NH Microbial constraints on the flow of terrestrial subsidies in lake ecosystems.

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4:30 PM Fankhauser, Crystal^*,1, Bade, Darren¹, Carpenter, Stephen¹, ¹ University of Wisconsin-Madison, Madison, Wisconsin, USA Carbon sources for invertebrate predators in a whole-lake experiment.

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4:45 PM Gyllström, Mikael^*,1, Hansson, Lars-Anders¹, ¹ Lund University, Lund, Skåne, Sweden Effects of diapause on zooplankton community dynamics: temporal patterns and the role of environmental cues.

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