[UNKNOWN: PRESTIME] Luecke, Chris^*,1, Burkart, Greta¹, ¹ Utah State University, Logan, Utah. Linking ecosystem processes to community structure: Lessons on compensatory mechanisms in arctic lakes.

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[UNKNOWN: PRESTIME] Steiner, Christopher^*,1, ¹ Rutgers University, New Brunswick, NJ. Keystone trade-offs and grazer control of planktonic primary production.

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[UNKNOWN: PRESTIME] Hembre, Leif^*,1,2, ¹ Hamline University, St. Paul, MN² University of Minnesota, St. Paul, MN. Controls on Annual and Inter-annual Patterns of Genetic Structure and Diversity of a Daphnia Population.

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[UNKNOWN: PRESTIME] SCHWARTZ, STEVEN^*,1, COSYLEON, GABRIEL¹, ¹ Oklahoma State University, Stillwater, OK. Life history and bet-hedging stratgeies among species in ephemeral aquatic habitats.

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[UNKNOWN: PRESTIME] Pyke, Christopher^*,1, ¹ University of California, Santa Barbara, Santa Barbara, CA. Environmental variability in vernal pool ecosystems: Implications for the biogeography of fairy shrimp in California.

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[UNKNOWN: PRESTIME] Barquin, Jose^*,1, Death, Russell¹, ¹ Institute of Natural Resources - Ecology, Palmerston North, New Zealand. Macroinvertebrate diversity in New Zealand spring brooks and streams.

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[UNKNOWN: PRESTIME] . Break.

[UNKNOWN: PRESTIME] MACNEALE, KATE^*,1,2, PECKARSKY, BARBARA¹, LIKENS, GENE², ¹ Cornell University, Ithaca, NY² Institute of Ecosystem Studies, Millbrook, NY. Stream insect populations connected through cross-stream and upstream adult flight.

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[UNKNOWN: PRESTIME] Hill, M. Forrest^*,1, Hastings, Alan², Botsford, Louis³, ¹ University of California-Davis, Davis, CA² University of California-Davis, Davis, CA³ University of California-Davis, Davis, CA. The effects of marine reserves on yield, abundance, and extinction times: A structured metapopulation model.

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[UNKNOWN: PRESTIME] NIBBELINK, NATHAN^*,1, BEN-DAVID, MERAV¹, BLUNDELL, GAIL², ¹ University of Wyoming, Laramie, WY² University of Alaska - Fairbanks, Fairbanks, AK. Can river otters naturally recolonize the Grand Canyon? Assessment with a spatially-explicit individual-based model.

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[UNKNOWN: PRESTIME] DE LA VEGA-SALAZAR, MARINA^*,1, AVILA-LUNA, EDGAR¹, MACIAS-GARCIA, CONSTANTINO¹, ¹ INSTITUTO DE ECOLOGIA. UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO, CIUDAD UNIVERSITARIA, MEXICO D.F., MEXICO. Deterministic and stochastic factors in the extinction of native fish.

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[UNKNOWN: PRESTIME] Budy, Phaedra^*,1,2, McHugh, Peter^1,2, ¹ Utah Cooperative Fish and Wildife Research Unit, Logan, UT² Department of Fisheries and Wildlife, Logan, UT. Predicting the potential response of chinook salmon populations to freshwater habitat changes.

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[UNKNOWN: PRESTIME] POWER, MARY^*,1, SUTTLE, BLAKE¹, MCNEELY, CAMILLE¹, LEVINE, JONATHAN², ¹ University of California, Berkeley, Berkeley, CA² University of California, Los Angeles, Los Angeles, CA. Effects of fine bed sediments on juvenile steelhead and food webs supporting them.

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