COS 107 - Biogeochemistry: New Paradigms in Biogeochem Cycling I

Thursday, August 11, 2011: 1:30 PM-5:00 PM
5, Austin Convention Center
1:30 PM
Nitrogen cycling in wet tropical forests
William R. Wieder, University of Colorado, Boulder; Philip G. Taylor, Duke University; Cory C. Cleveland, University of Montana; Diana Nemergut, University of Colorado; Laurent Philippot, INRA-Université de Bourgogne; Alan R. Townsend, University of Colorado at Boulder
1:50 PM
Nitrogen, phosphorus, and the biogeochemical niche of symbiotic di-nitrogen fixers in tropical rainforests
Sarah A. Batterman, Princeton University; Nina Wurzburger, University of Georgia; Lars Hedin, Princeton University
2:10 PM
Stoichiometry of multiple soil nutrients controls leguminous nitrogen fixation in a tropical forest
Nina Wurzburger, University of Georgia; Lars O. Hedin, Princeton University
2:30 PM
Organic nitrogen loss dominates nitrogen export from a wet lowland tropical forest watershed
Philip G. Taylor, Duke University; William R. Wieder, University of Colorado, Boulder; Alan R. Townsend, University of Colorado at Boulder; Cory C. Cleveland, University of Montana
2:50 PM
Bedrock nitrogen contributes to nitrogen fertility and carbon storage across temperate forest ecosystems
Scott L. Morford, University of California, Davis; Benjamin Z. Houlton, University of California, Davis; Randy A. Dahlgren, University of California, Davis
3:10 PM
3:20 PM
Nitrogen loss from upland soil via anaerobic ammonium oxidation coupled to iron reduction
Wendy H. Yang, University of Illinois, Urbana-Champaign; Karrie A. Weber, University of Nebraska; Whendee L. Silver, University of California, Berkeley
3:40 PM
Using Rayleigh Isotope Equations to predict foliar δ15Nitrogen signatures and form of nitrogen uptake across biomes 
Colin Averill, University of Texas at Austin; Adrien C. Finzi, Boston University
4:20 PM
Large losses of inorganic nitrogen from tropical rainforests suggest a lack of nitrogen limitation
Jack Brookshire, Montana State University; Stefan Gerber, University of Florida IFAS; Duncan N. L. Menge, Princeton University; Lars O. Hedin, Princeton University
4:40 PM
The importance of humic reduction in anaerobic microbial carbon cycling in peatland soils
Jason K. Keller, Chapman University; Crisand Anderson, Chapman University
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