Session: Biogeochemistry: C and N Cycling in Response to Global Change I (94th ESA Annual Meeting (August 2 -- 7, 2009))

8:00 AM

COS 84-1

Grass invasion causes rapid increases in ecosystem carbon and nitrogen storage in a semi-arid shrubland
Elizabeth M. Wolkovich, Harvard University; David A. Lipson, San Diego State University; Ross A. Virginia, Dartmouth College; Kathryn L. Cottingham, Dartmouth; Douglas T. Bolger, Dartmouth College

8:20 AM

COS 84-2

Impacts of nonnative grass invasion and precipitation variability on carbon partitioning in a Hawaiian tropical dry forest
Creighton M. Litton, University of Hawaii at Manoa; Darren R. Sandquist, California State University, Fullerton; Susan Cordell, USDA Forest Service

8:40 AM

COS 84-3

Shrub Expansion: Is deeper snow a mechanism for enhanced nitrogen uptake by shrubs?
Mathew R. Vankoughnett, Queens University; Paul Grogan, Queen's University

9:00 AM

COS 84-4

The importance of competitive exclusion in climate prediction
Rosie A. Fisher, National Center for Atmospheric Research; Nathan McDowell, Los Alamos National Laboratory; F. Ian Woodward, University of Sheffield; Chris Huntingford, Centre for Ecology and Hydrology; Stephen Sitch, University of Leeds; Paul Moorcroft, Harvard University

9:20 AM

COS 84-5

What’s the frequency, Syntrichia? Quantifying desert moss response to changes in precipitation regime
Kirsten K. Coe, Cornell University; Jayne Belnap, U.S. Geological Survey; Jed P. Sparks, Cornell University

9:40 AM

COS 84-

Break

9:50 AM

COS 84-6

Rhizosphere responses to rising sea level in tidal forests: Scaling from root form to carbon cycling
Julie L. Whitbeck, University of New Orleans; Ken W. Krauss, U.S. Geological Survey; William H. Conner, Clemson University; Thomas W. Doyle, U.S. Geological Survey

10:10 AM

COS 84-7

Plant impacts on competition between tidal marsh microbes
Ariana E. Sutton-Grier, Smithsonian Environmental Research Center; Jason K. Keller, Chapman University; Allyson L. Bullock, Smithsonian Institution; J. Patrick Megonigal, Smithsonian Environmental Research Center

10:30 AM

COS 84-8

Carbon and nitrogen accumulation during secondary succession
Yuanhe Yang, Department of Botany and Microbiology, University of Oklahoma, Norman, OK; Yiqi Luo, University of Oklahoma

10:50 AM

COS 84-9

Precipitation regulates the response of net ecosystem CO₂ exchange to environmental variation on US rangelands
H. Wayne Polley, USDA, Agricultural Research Service; William E. Emmerich, USDA, Agricultural Research Service; James A. Bradford, USDA, Agricultural Research Service; Phillip L. Sims, USDA, Agricultural Research Service; Douglas A. Johnson, USDA-ARS Forage and Range Research Lab; Nicanor Z. Saliendra, U.S. Forest Service; Tony Svejcar, USDA, Agricultural Research Service; Raymond Angell, USDA, Agricultural Research Service; Albert B. Frank, USDA, Agricultural Research Service; Rebecca L. Phillips, USDA, Agricultural Research Service; Keirith A. Snyder, USDA Agricultural Research Service; Jack A. Morgan, USDA-ARS; Joaquin Sanabria, IFDC; Patricia C. Mielnick, Texas AgriLife Research; William A. Dugas, Texas A&M University

COS 84 - Biogeochemistry: C and N Cycling in Response to Global Change I