96th ESA Annual Meeting (August 7 -- 12, 2011)

Thursday, August 11, 2011: 4:30 PM-6:30 PM

Exhibit Hall 3, Austin Convention Center

Hydrogeologic and geochemical controls on nutrient availability and food web dynamics in the biodiverse karstic Edwards Aquifer, TX, USA
B. T. Hutchins, Texas State University; Benjamin F. Schwartz, Texas State University; A. S. Engel, Louisiana State Universiy

Species and wildfire effects on the spatial pattern and scale of soil N and P pools in a Pinus canariensis forest
Alexandra Rodríguez, Cary Institute of Ecosystem Studies; Jorge Durán, Cary Institute of Ecosystem Studies; Antonio Gallardo, Pablo de Olavide University; José María Fernández-Palacios, La Laguna University

Quantifying the relative contributions of diazotrophic community composition and soil characteristics on nitrogen fixation rates
Shifang Hsu, Kent State University; Daniel H. Buckley, Cornell University

Tag encoded pyrosequencing reveals shift in microbial community structure in Midwest soil under different agricultural and restoration treatments affecting carbon sequestration
Suhana Chattopadhyay, Kent State University; Kelly D. McConnaughay, Bradley University; Michelle L. Haddix, Colorado State University; Richard Conant, Colorado State University; Sherri J. Morris, Bradley University; Eldor A. Paul, Colorado State University; Christopher B. Blackwood, Kent State University

Influence of root biomass and specific respiration rates on variation in ecosystem level fine root respiration among forest types
Gerald P. Jondreau, Michigan Technological University; Mickey P. Jarvi, Michigan Technological University; Andrew J. Burton, Michigan Technological University

Pyrosequencing-based assessment of soil bacterial communities within soil aggregates: Linking structure to C storage
Marko Davinic, Texas Tech University; Jennifer Moore-Kucera, Texas Tech University; Lisa Fultz, Texas Tech University; Scott Dowd, Research and Testing Laboratory; V. Acosta-Martinez, USDA-ARS; Stephen B. Cox, Texas Tech University; Vivien Allen, Texas Tech University

Abiotic and biotic constraints on nitrogen fixation and producer species assemblages in an N-limited river ecosystem
Jill R. Welter, St. Catherine University; Paula C. Furey, St. Catherine University; Jessica A. Cormier, St. Catherine University; Angela J. Rosendahl, St. Catherine University; Brooke L. Weigel, St. Olaf College; Grace M. Wilkinson, University of Virginia

Impacts of fire and vegetation on resource distribution and microbial nitrifier communities in an semiarid grassland ecosystem
Paul E. Brewer, Colorado State University; David J. Augustine, USDA-ARS; Dana M. Blumenthal, USDA-ARS; Joseph C. von Fischer, Colorado State University

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PS 71 - Biogeochemistry: Linking Community Structure and Ecosystem Function