Thursday, August 9, 2007: 8:00 AM-11:30 AM
N, San Jose McEnery Convention Center
COS 111 - Nitrogen cycling across systems
8:00 AMStable 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 AMStoichiometry 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 AMCarbon 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 AMTemporal 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 AMPossible fates for nitrate in grassy vs. xeriscaped stormwater retention basins
Elisabeth K. Larson, Arizona State University, Nancy B Grimm, Arizona State University
9:40 AMBreak
9:50 AMLow N losses may drive pine invasion in central Great Plains
Ramesh Laungani, University of Nebraska-Lincoln, Jean Knops, University of Nebraska-Lincoln
10:10 AMModeling 150 years of anthrpogenic nitrogen loading to Narragansett Bay
Matthew A. Vadeboncoeur, Brown University, Steven P. Hamburg, Brown University
10:30 AMThe 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 AMSoil 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)