Session: Biogeochemistry: Linking Community Structure and Ecosystem Function (96th ESA Annual Meeting (August 7 -- 12, 2011))

PS 71-173

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

PS 71-174

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

PS 71-175

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

PS 71-176

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 Blackwood, Kent State University

PS 71-177

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

PS 71-178

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

PS 71-179

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

PS 71-180

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, Agricultural Research Service; Joseph C. von Fischer, Colorado State University

PS 71 - Biogeochemistry: Linking Community Structure and Ecosystem Function