[UNKNOWN: PRESTIME] Gunzburger, Margaret^*,1, ¹ Department of Biological Science, Tallahassee, FL. Combining predator effectiveness and abundance to evaluate the importance of predation on Hyla cinerea tadpoles.

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[UNKNOWN: PRESTIME] Rieger, Josef^*,1, Binckley, Christopher¹, Resetarits, William¹, ¹ Old Dominion University, Norfolk, Virginia. The effects of variation in predator density on anuran oviposition and larval performance.

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[UNKNOWN: PRESTIME] Mooney, Kailen^*,1, ¹ University of Colorado, Boulder, CO. Canopy foraging birds modify ant-aphid mutualism in ponderosa pine forests.

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[UNKNOWN: PRESTIME] Chalcraft, David^*,1, Resetarits, William², ¹ University of Illinois, Urbana, IL² Old Dominion University, Norfolk, VA. Strength of top-down effects on herbivores depends on the identity of the top predator present.

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[UNKNOWN: PRESTIME] . Break.

[UNKNOWN: PRESTIME] KAUNZINGER, CHRISTINA^*,1, LONG, ZACHARY¹, STEVENS, M. HENRY², MORIN, PETER¹, ¹ Rutgers University, New Brunswick, NJ² Miami University, Oxford, OH. Community closure: species fail to re-establish following local extinctions.

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[UNKNOWN: PRESTIME] Walters, Eric^*,1, James, Frances¹, ¹ Florida State University, Tallahassee, FL. Competition among species for a discrete transient resource: instability leads to extinction.

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[UNKNOWN: PRESTIME] Kneitel, Jamie^*,1, ¹ Florida State University, Tallahassee, FL. Trade-offs among coexisting species in the pitcher-plant (Sarracenia purpurea) inquiline community.

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[UNKNOWN: PRESTIME] FUKAMI, TADASHI^*,1, ¹ University of Tennessee, Knoxville, TN. Productivity, community assembly, and species diversity in an aquatic microcosm experiment.

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[UNKNOWN: PRESTIME] Bossenbroek, Jonathan^*,1, Wagner, Helene², Wiens, John³, ¹ Colorado State University, Fort Collins, CO² WSL - Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland³ The Nature Conservancy, Arlington, VA. Thresholds in community composition: avoiding the presumptions of a priori classification.

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