Friday, August 7, 2009: 8:00 AM-11:30 AM
Aztec, Albuquerque Convention Center
COS 114 - Biogeochemistry: Linking Community Structure and Ecosystem Function
8:00 AMCOS 114-1Available organic soil phosphorus has a strong influence on microbial community composition in an acidic mixed-mesophytic forest
Jared L. DeForest, Ohio University, Lindsay G. Scott, Ohio University
8:20 AMCOS 114-2Carbon and nitrogen dynamics in the absence of plants: Microbial contributions to the biogeochemistry of high-elevation barren soil
Kristen R. Freeman, University of Colorado, Boulder
8:40 AMCOS 114-3Soil pH, ecological stoichiometry, and allometric scaling in soil biota
Christian Mulder, Dutch National Institute for Public Health and Environment, Jim Elser, Arizona State University
9:00 AMCOS 114-4A cross-site comparison of methane uptake rates and methanotroph community composition at three grassland LTER sites
Craig R. Judd, Colorado State University, Joe C. von Fischer, Colorado State University, Noah Fierer, University of Colorado-Boulder
9:20 AMCOS 114-5Soil warming and microbial communities: Insights from combining genetic and biogeochemical measures
Jessica L.M. Gutknecht, Helmoltz- Centre for Environmental Research- UFZ, Dorthe Petersen, University of California, Berkeley, Biao Zhu, University of California at Santa Cruz, Donald J. Herman, University of California, Berkeley, Mary K. Firestone, University of California, Berkeley, Weixin Cheng, University of California at Santa Cruz
9:40 AM Break
9:50 AMCOS 114-6Effects of macroinvertebrate species composition and density on benthic oxygen and nutrient flux and concentrations of ammonium and soluble-sulfides in sediment porewater in shallow estuaries
Ursula H. Mahl, Cornell University, Anna C. Tyler, Rochester Institute of Technology, Robert W. Howarth, Cornell University, Natalie Mc Lenaghan, Rochester Institute of Technology
10:10 AMCOS 114-7Environmental influences of wastewater and desalination effluent on benthic macroinvertebrate communities in the Brazos River
Jeffrey Bardwell, Baylor University
10:30 AMCOS 114-8Integrating estimates of ecosystem respiration from eddy covariance towers with automated measures of soil respiration: Examining the development and influence of hysteresis in soil respiratory fluxes along a woody plant encroachment gradient
Greg A. Barron-Gafford, University of Arizona, Russell Scott, United States Department of Agriculture, Agricultural Research Service, G. Darrel Jenerette, University of California Riverside, Travis E. Huxman, University of Arizona
10:50 AMCOS 114-9Tree species effects on ecosystem water-use efficiency in a high-elevation, subalpine forest
Russell K. Monson, University of Colorado Boulder, Margaret R. Prater, University of Colorado Boulder, Jia Hu, University of Colorado Boulder, Sean Burns, University of Colorado Boulder, Laura Scott, University of Colorado Boulder, Jed P. Sparks, Cornell University, Kimberlee L. Sparks, Cornell University
11:10 AMCOS 114-10Ecosystem process responses to guppy introduction and light manipulation in Trinidad streams
Michael C. Marshall, University of Georgia, Rana W. El-Sabaawi, Cornell University, Thomas N. Heatherly, University of Nebraska-Lincoln, Andres Lopez-Sepulcre, University of California, Riverside, Catherine M. Pringle, University of Georgia, Steve A. Thomas, University of Nebraska-Lincoln, Alexander S. Flecker, Cornell University, David N. Reznick, University of California, Riverside

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