8:00 AM: Denison, R. Ford^{*,1, 2}, Kiers, E. Toby², ¹ Ecology, Evolution, and Behavior, St. Paul, MN, USA² Agronomy and Range Science, Davis, CA, USA, The evolutionary persistence of diversity in rhizobium lifestyles.

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8:20 AM: Heil, Martin^*,1, ¹ Dept. of General Botany - FB 9, Essen, Germany, Coevolutionary adaptations stabilizing obligate ant-plant mutualism.

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8:40 AM: Ness, Joshua^{1, 2}, Bronstein, Judith¹, ¹ Dept Ecology and Evolutionary Biology, Tucson, Arizona, USA² Dept of Biology, Saratoga Springs, New York, USA, Indirect costs of a mutualism: The most aggressive plant bodyguards also deter pollinators.

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9:00 AM: Billick, Ian ^*,1, Reithel, Jennifer, Tonkel, Kirk², Brown, Ryan , Relyea, Matthew³, ¹ Rocky Mountain Biological Laboratory, Gothic, CO² Truman State University, Kirksville, MO³ Adams State College, Alamosa, CO, Understanding the role of different trophic levels in generating variability in the strength of an ant-membracid mutualism.

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9:20 AM: Bronstein, Judith^*,1, Davidowitz, Goggy¹, Huxman, Travis¹, ¹ University of Arizona, Tucson, AZ, For better or worse: Benefits and costs in a linked pollination/herbivory interaction.

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9:40 AM: , BREAK.

9:50 AM: Umbanhowar, James^*,1, Hoeksema, Jason², Schwartz, Marc³, ¹ University of Guelph, Guelph, ON, Canada² University of California, Santa Cruz, Santa Cruz, CA, USA³ University of California, Davis, Davis, CA, USA, The dynamics of market mutualisms.

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10:10 AM: Holland, J. Nathaniel^*,1, Ness, Josh², Boyle, Alice, Bronstein, Judith, ¹ Rice University, Houston, TX² University of Arizona, Tucson, AZ, Mutualisms as consumer-resource interactions.

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10:30 AM: Sachs, Joel^*,, Simms, Ellen, , Mutualism breakdown in the legume-rhizobium symbiosis.

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