Friday, August 7, 2009: 8:00 AM-11:30 AM
Grand Pavillion IV, Hyatt
COS 128 - Stable Isotope Applications
8:00 AMCOS 128-1Stable isotopes suggest stomach content underestimates prey fish consumption by nonnative piscivores in a shallow western lake
Kevin Landom, Utah State University, Todd A. Crowl, Utah State University
8:20 AMCOS 128-2Cactus nectar as a food resource for an avian community in the American Southwest
Sophia Engel, University of New Mexico, Theresa Hyde, University of New Mexico, Blair O. Wolf, University of New Mexico
8:40 AMCOS 128-3Effects of diet and phenotypic plasticity on patterns of stable isotope fractionation in tadpoles
John C. Maerz, The University of Georgia, Leah Connel, The University of Georgia
9:00 AMCOS 128-4Patterns in δ15N in roots, stems, and leaves of sugar maple and beech seedlings, saplings, and mature trees
Linda H. Pardo, USDA Forest Service, Priscillia Semaoune, Universite Pierre et Marie Curie, Paul G. Schaberg, USDA Forest Service, Christopher Eagar, USDA Forest Service, NRS, Mathieu Sebilo, Universite Pierre et Marie Curie
9:20 AMCOS 128-5Tropospheric ozone does not reduce soil carbon formation under elevated carbon dioxide
Alan F. Talhelm, Unversity of Nevada, Reno, Kurt S. Pregitzer, Unversity of Nevada, Reno, Donald R. Zak, University of Michigan
9:40 AM Break
9:50 AMCOS 128-6Seasonal changes in microbial C and N isotope signatures for grasslands and forests along an elevation gradient in Northern Arizona, USA
Paul Dijkstra, Northern Arizona University, Corinne M LaViolette, Northern Arizona University, Bruce A. Hungate, Northern Arizona University, Egbert Schwartz, Northern Arizona University, Stephen C. Hart, University of California, Merced
10:10 AMCOS 128-7Isotopic evidence for variation in niche breadth across a latitudinal gradient
Jessica Hines, Florida State University
10:30 AMCOS 128-8Ontogeny influences photosynthetic and post-photosynthetic carbon isotope discriminations
Romain L. Barnard, ETH Zurich / UC Berkeley, Yann Salmon, ETH Zurich, Nina Buchmann, ETH Zurich
10:50 AMCOS 128-9Analytic methods for incorporating intra- and inter-group variability in Bayesian stable isotope mixing models
Brice Semmens, Northwest Fisheries Science Center, Eric J. Ward, NOAA, Jonathan W. Moore, University of California Santa Cruz, Chris T. Darimont, University of California, Santa Cruz

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See more of The 94th ESA Annual Meeting (August 2 -- 7, 2009)