Thursday, August 9, 2007: 8:00 AM-11:30 AM
N, San Jose McEnery Convention Center
COS 111 - Nitrogen cycling across systems
8:00 AMCOS 111-1Stable 15N abundances record the imprint of oaks on nitrogen cycling in California grassland-savanna
Steven Perakis, USGS Forest and Rangeland Ecosystem Science Center, Chev H. Kellogg, University of Oklahoma
8:20 AMCOS 111-2Stoichiometry and co-limitation in a South African grassland
Joseph M. Craine, Dartmouth College, Carl Morrow, University of Cape Town, Michelle Mack, University of Florida, William Stock, Edith Cowan University
8:40 AMCOS 111-3Carbon and nitrogen dynamics in southern African savannas
Lixin Wang, University of Virginia, Paolo D'Odorico, University of Virginia, Stefano Manzoni, Duke University, Amilcare Porporato, Duke University, Stephen Macko, University of Virginia
9:00 AMCOS 111-4Temporal variability of 15N enrichment of the soil microbial biomass along a semiarid substrate age gradient
Jeffrey S. Coyle, Northern Arizona University, Paul C. Selmants, Northern Arizona University, Paul Dijkstra, Northern Arizona University, Egbert Schwartz, Northern Arizona University, Stephen C. Hart, Northern Arizona University, Bruce A. Hungate, Northern Arizona University
9:20 AMCOS 111-5Possible fates for nitrate in grassy vs. xeriscaped stormwater retention basins
Elisabeth K. Larson, Arizona State University, Nancy B Grimm, Arizona State University
9:40 AM Break
9:50 AMCOS 111-6Low N losses may drive pine invasion in central Great Plains
Ramesh Laungani, University of Nebraska-Lincoln, Jean Knops, University of Nebraska-Lincoln
10:10 AMCOS 111-7Modeling 150 years of anthrpogenic nitrogen loading to Narragansett Bay
Matthew A. Vadeboncoeur, Brown University, Steven P. Hamburg, Brown University
10:30 AMCOS 111-8The effects of atmospheric nitrogen deposition on nitrate retention and loss in urban wetlands
Emilie K. Stander, Rutgers University, Joan G. Ehrenfeld, Rutgers University
10:50 AMCOS 111-9Soil aggregate-associated nitrogen dynamics and microbial community composition in three different tillage systems
Subathra Muruganandam, North Carolina State University, Daniel. W Israel, North Carolina State University, Wayne Robarge, North Carolina State University

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See more of The ESA/SER Joint Meeting (August 5 -- August 10, 2007)