Wednesday, June 6, 2007: 3:45 PM-5:30 PM
Richland Room B (Columbia Metropolitan Convention Center)
Biogeochemistry IV
Organizer:Patrick J. Mulholland
3:45 PM320Nitrogen cycling in the riparian zone of a tidal freshwater river
Scott H. Ensign, Michael F. Piehler, Ph.D., Martin Doyle, PhD
4:00 PM321Nitrogen cycling across an urbanization gradient
Brooke A. Hassett, Emily S. Bernhardt, Elizabeth B. Sudduth, Peter A. Cada
4:15 PM322The Contribution of Nitrogen Fixation to Nitrogen Cycling in Ditch Creek, WY Throughout the Summer Season
Lisa A. Kunza, Robert O. Hall Jr.
4:30 PM323Influence of Wood Decomposition on Nitrogen Dynamics in Stream Ecosystems: Interactive Effects of Substrate Quality and Nitrogen Loading
Daniel J. Sobota, Stan V. Gregory, Sherri L. Johnson
4:45 PM324The Influence of Land-Use on Autochthonous DON Production in Streams from Two Contrasting Biomes
Laura T. Johnson, Jennifer L. Tank, Robert O. Hall Jr., Patrick J. Mulholland
5:00 PM325Nitrous Oxide Production Via Denitrification in 71 Headwater Streams Measured with Stable Isotope Additions
Jake J. Beaulieu, Walter K. Dodds, Nancy B. Grimm, Robert O. Hall, Stephen K. Hamilton, William H. McDowell, Patrick J. Mulholland, Bruce J. Peterson, Jennifer L. Tank, H. Maurice Valett, Jackson R. Webster, Clay Arango, Melody J. Bernot, Amy J. Burgin, Chelsea Crenshaw, Bobbie Niederlehner, Jonathan M. O'Brien, Jody D. Potter, Richard W. Sheibley, Daniel J. Sobota, Suzanne M. Thomas
5:15 PM326Spawning Salmon Alleviate Nitrogen Limitation in a 100-Year Riparian Succession Chronosequence of a Kamchatka (Russian Federation) River
Michael R. Morris, Jack A. Stanford
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