[UNKNOWN: PRESTIME] KLEINTJES, PAULA^*,1, FETTIG, STEPHEN², ¹ University of Wisconsin-Eau Claire, Eau Claire, WI² Bandelier National Monument, Los Alamos, NM. Extending the trophic cascade hypothesis from elk and aspen to butterflies.

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[UNKNOWN: PRESTIME] Ovadia, Ofer^*,1, Schmitz, Oswald¹, ¹ School of Forestry and Environmental Studies, New Haven, CT. The starvation predation trade-off in food web interactions: does size matter?

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[UNKNOWN: PRESTIME] Dyer, Lee^*,1, Vega Chavarria, Gerardo², Letourneau, Deborah³, ¹ Tulane University, New Orleans, LA² Organization for Tropical Studies, Puerto Viejo, Sarapiqui, Costa Rica³ University of California, Santa Cruz, CA. Top-down, bottom-up, and horizontal control of plant diversity in a rainforest understory.

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[UNKNOWN: PRESTIME] BASCOMPTE, JORDI^*,1, JORDANO, PEDRO¹, MELIÁN, CARLOS¹, OLESEN, JENS², ¹ Estación Biológica de Doñana, CSIC, Sevilla, Spain² University of Aarhus, Aarhus, Denmark. The nested assemblage of plant-animal mutualistic webs.

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[UNKNOWN: PRESTIME] MERG, K^*,1, THOMPSON, J², ¹ Washington State University, Pullman, WA² University of California at Santa Cruz, Santa Cruz, CA. Plant diversification through polyploidy and diverging insect-plant interactions.

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[UNKNOWN: PRESTIME] VAN ZANDT, PETER^*,1, ¹ University of Toronto, Toronto, Ontario, Canada. Specificity in the interactions between two specialist herbivores and their milkweed host.

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[UNKNOWN: PRESTIME] AGRAWAL, ANURAG^*,1, ¹ University of Toronto, Toronto, Ontario, Canada. Plant-plant-herbivore interactions: phenotypic plasticity in response to plant competition affects herbivores of common milkweed.

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[UNKNOWN: PRESTIME] Ruuhola, Teija^*,1, Ossipov, Vladimir², Lempa, Kyösti³, Haukioja, Erkki⁴, ¹ University of Turku, Turku, -, Finland² University of Turku, Turku, -, Finland³ University of Turku, Turku, -, Finland⁴ University of Turku, Turku, -, Finland. Seasonal variation in the nutrient composition of mountain birch leaves.

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[UNKNOWN: PRESTIME] Huberty, Andrea^*,1, Denno, Robert¹, ¹ University of Maryland, College Park, MD. Mismatch in elemental composition (C:N:P) between herbivorous insects and their host plants: consequences for performance and dispersal .

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[UNKNOWN: PRESTIME] Prudic, Kathleen^*,1, Bowers, M. Deane¹, ¹ University of Colorado, Boulder, Colorado. Effects of soil fertilization on the chemical defense and performance of a specialist insect herbivore.

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[UNKNOWN: PRESTIME] Siemens, David^*,1, Maggiulli, Nicole¹, Roy, Bitty¹, ¹ University of Oregon, Eugene. Experimental test of the Defense-Stress Benefit hypothesis.

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[UNKNOWN: PRESTIME] VILLALBA, JUAN^*,1, PROVENZA, FREDERICK¹, GUODONG, HAN², ¹ Utah State University, Logan, Utah² Inner Mongolia Institute of Agriculture and Animal Husbandry, Huhhot, China. Experience influences herbivore selectivity: Implications for plant species composition in chemically defended environments.

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[UNKNOWN: PRESTIME] Coviella, Carlos^*,1,2, Flores, Paul¹, Luck, Robert¹, ¹ University of California-Riverside, Riverside, California² Universidad Nacional de Lujan, Lujan, Buenos Aires, Argentina. Seasonal differences in host-plant use by the Glassy-winged sharpshooter.

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[UNKNOWN: PRESTIME] Dirzo, Rodolfo^*,1, ¹ Instituto de Ecología, Universidad Nacional Autónoma de México, México, D.F., México. Can leaf morphology deceive herbivores? Evidence from Neotropical plants.

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[UNKNOWN: PRESTIME] GARCIA-GUZMAN, GRACIELA^*,1, BENITEZ-MALVIDO, JULIETA², ¹ UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO, MEXICO, DF, MEXICO² UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO, MORELIA, MICH., MEXICO. Litter effect on the incidence of leaf-fungal pathogens and herbivory in seedlings of a tropical tree.

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