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15 Biogeochemistry II

Tuesday, May 19, 2009: 8:00 AM-10:00 AM
Ford Ballroom
Moderator:
Amy J. Burgin
8:00 AM
93
Preferential nitrogen uptake by sediment microbial communities in response to variable nitrogen concentrations
Nathan D. Bunch, Ball State University; Melody J. Bernot, Ball State University
8:15 AM
94
Denitrification capacity of lake sediments across a gradient of catchment land use in Rotorua, New Zealand
Denise A. Bruesewitz, University of Waikato; David Hamilton, University of Waikato; Louis Schipper, University of Waikato; Warwick Silvester, University of Waikato
8:30 AM
95
Inferring assimilation and denitrification from high frequency nitrate measurements
James B. Heffernan, Florida International University
8:45 AM
96
The importance of direct and indirect denitrification as fates of nitrate in a forested stream
Jonathan M. O'Brien, Kellogg Biological Station; Stephen K. Hamilton, Michigan State University; Y-K. Wang, National University of Tainan; Laura Podzikowski, Michigan State University
9:00 AM
97
Nitrogen-uptake responses of stream biofilms to increased availability and changes in relative abundance of chemical forms of nitrogen
Eugènia Martí, Centre d'Estudis Avançats de Blanes (CSIC); Francesc Sabater, Universitat de Barcelona; Nancy B. Grimm, Arizona State University; Miquel Ribot, Centre d'Estudis Avançats de Blanes (CSIC); Joan L. Riera, Universitat de Barcelona
9:15 AM
98
The effects of plant genes on in stream nitrification rates
Adam Wymore, Northern Arizona University; Jane C. Marks, Northern Arizona University
9:30 AM
99
Nitrous oxide emissions from the Ohio River
Jake J. Beaulieu, US EPA MS498; Jacob Rebholz, Thomas More College; William D. Shuster, US Environmental Protection Agency
9:45 AM
100
Nitrate use by sulfur bacteria in a stratified lake
Amy J. Burgin, Cary Institute of Ecosystem Studies; Stephen K. Hamilton, Kellogg Biological Station; Jay T. Lennon, Kellogg Biological Station; Stuart Jones, Kellogg Biological Station
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