Monday, August 6, 2007: 1:30 PM-5:00 PM
B1&2, San Jose McEnery Convention Center
COS 15 - Nutrient cycling and ecosystem function in aquatic systems
1:30 PMCOS 15-1Competition in freshwater macroinvertebrates and the effect on ecosystem functioning
Pia Hertonsson, Lund University, Kasja Abjornsson, Lund University, Christer Bronmark, Lund University
1:50 PMCOS 15-2Impact of channel geometry and periphyton growth on nutrient uptake and location of biogeochemical hotspots: Insights from a field-scale flume
Cailin Huyck Orr, University of Minnesota, Jeffery J. Clark, Lawrence University, Jacques C Finlay, University of Minnesota, Peter R. Wilcock, Johns Hopkins University
2:10 PMCOS 15-3Is excretion by grazing caddisflies a source of nutrients to N-limited streams?
Camille McNeely, Eastern Washington University, Jim M. Hood, University of Minnesota, John D. Schade, St. Olaf College
2:30 PMCOS 15-4A comparison of benthic secondary producer communities and production rates among lake types
Katrina June Butkas, University of Wisconsin, M. Jake Vander Zanden, University of Wisconsin, Yvonne Vadeboncoeur, Wright State University
2:50 PMCOS 15-5Biogeochemical consequences of North Carolina’s largest wetland mitigation project
Marcelo Ardon, Duke University, Emily Bernhardt, Duke University, Jennifer L. Morse, Duke University, Martin W. Doyle, University of North Carolina
3:10 PM Break
3:20 PMCOS 15-6Restoration as experimental manipulation: Is channel structure or watershed condition more important in predicting ecosystem function in urban streams?
Elizabeth B. Sudduth, Duke University, Brooke Hassett, Duke University, Emily Bernhardt, Duke University, Peter Cada, Duke University, Christy R. Violin, University of North Carolina
3:40 PMCOS 15-7Retention of riverine nutrient and sediment loads by floodplains in the Chesapeake Bay watershed
Gregory B. Noe, U. S. Geological Survey, Cliff Hupp, U. S. Geological Survey
4:00 PMCOS 15-8The distribution and function of biogeochemical interfaces, gradients, and fluxes in a coastal spring-fed riverine and estuarine system
Thomas J. Saunders, University of Florida, Mary E. Collins, University of Florida, Thomas K. Frazer, University of Florida, G. Wade Hurt, University of Florida
4:20 PMCOS 15-9Linking watershed and reach-scale controls of dissolved and particulate nutrients in a stream network
Jacques C. Finlay, University of Minnesota, Maria Lynn Goodrich, University of California, Berkeley, James Hood, University of Minnesota, Camille McNeely, Eastern Washington University, John D. Schade, St. Olaf College, Jill R. Welter, College of St. Catherine
4:40 PMCOS 15-10Do tropical forest streams function like their temperate counterparts? Insights from litter decomposition
Mark O. Gessner, Eawag, Manuela Abelho, Instituto Politécnico de Coimbra, Claudia Cressa, Universidad Central de Venezuela, Anja L. Schmitt, University of Kiel, Manuel A. S. Graca, Universidade de Coimbra, Corabel Barrios, Universidad Central de Venezuela, Kirsten A. Callies, Max-Planck Institut fur Limnologie

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