COS 3
Biogeochemistry: New Paradigms In Biogeochem Cycling I

Monday, August 10, 2015: 1:30 PM-5:00 PM
303, Baltimore Convention Center
1:30 PM
COS 3-1
Mycorrhizal strategies have differential effects on soil carbon and nitrogen
Nina Wurzburger, University of Georgia; Jack Brookshire, Montana State University
1:50 PM
COS 3-2
Floodplain aquifer chemotrophy: Food web dependence on abiogenic and biogenic methane
Amanda Gay DelVecchia, The University of Montana; Jack Stanford, The University of Montana
2:10 PM
COS 3-3
Watershed missing N: Can biogenic N gas fluxes account for it?
Rebecca J. Fox, University of Maryland Center for Environmental Science, Washington College; John Gardner, University of Maryland Center for Environmental Science, Duke University; Thomas E. Jordan, Smithsonian Environmental Research Center; Karen L. Knee, American University; Anne B. Gustafson, Horn Point Laboratory, University of Maryland Center for Environmental Science; Todd M. Kana, Horn Point Laboratory, University of Maryland Center for Environmental Science; Thomas R. Fisher, Horn Point Laboratory, University of Maryland Center for Environmental Science
2:30 PM
COS 3-4
Emerging groundwater carries evidence of biogenic N2 production rates and processes in an agricultural watershed
Thomas E. Jordan, Smithsonian Environmental Research Center; Dana C. Brenner, Smithsonian Environmental Research Center; Thomas R. Fisher, Horn Point Laboratory, University of Maryland Center for Environmental Science; John Gardner, University of Pittsburgh; Anne B. Gustafson, Horn Point Laboratory, University of Maryland Center for Environmental Science; Karen L. Knee, American University; Joseph J. Miklas, Smithsonian Institution; Christina H. Hill, Smithsonian Environmental Research Center
2:50 PM
COS 3-5
Dinitrogen emissions from agricultural soils increase over the growing season
Maya Almaraz, Brown University; Rebecca Ryals, Brown University; Stephen Porder, Brown University; Peter M. Groffman, Cary Institute of Ecosystem Studies
3:10 PM
COS 3-
Break
3:20 PM
COS 3-6
Nitrogen fixers in tropical forests face a major cost to herbivory
Suchana H. Costa, Princeton University; Sarah A. Batterman, Princeton University; Jefferson Hall, Smithsonian Tropical Research Institute; Michiel van Breugel, Yale-NUS College, Smithsonian Tropical Research Institute; Lars O. Hedin, Princeton University
3:40 PM
COS 3-7
Soil carbon, nitrogen, and phosphorus and their stoichiometric ratios are affected by stand age and overstory type in the fire-driven boreal forest
Alexandra M. Hume, Lakehead University; Han Y. H. Chen, Lakehead University
4:00 PM
COS 3-8
Nutrient limitation across tropical forests inferred from stoichiometry of nutrient losses
Jack Brookshire, Montana State University; Wilder Greene, Montana State University; Stefan Gerber, University of Florida IFAS; Steven Thomas, University of Nebraska, Lincoln; Ryan Jones, Montana State University
4:20 PM
COS 3-9
Individual- and ecosystem-level consequences of competition on tropical forest nutrient cycling
Cleo B. Chou, Princeton University; Lars O. Hedin, Princeton University; Stephen W. Pacala, Princeton University
4:40 PM
COS 3-10
Nitrogen (N) fixation in N-limited ecosystems: Unraveling the importance and fate of fixed N2
Kathrin Rousk, University of Copenhagen; Anders Michelsen, University of Copenhagen
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