COS 128 Stable Isotope Applications

Friday, August 7, 2009: 8:00 AM-11:30 AM
Grand Pavillion IV, Hyatt
Paul Dijkstra
8:00 AM
8:20 AM
Cactus 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 AM
Effects 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 AM
Patterns 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 AM
Tropospheric 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
9:50 AM
Seasonal 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
10:30 AM
Ontogeny 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 AM
Analytic 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