95th ESA Annual Meeting (August 1 -- 6, 2010)

COS 91 - Biogeochemistry: Atmospheric N Deposition Effects

Thursday, August 5, 2010: 1:30 PM-5:00 PM
406, David L Lawrence Convention Center
Jenny Talbot
1:30 PM
Plant community responses to nitrogen fertilization along a semiarid grassland transition zone
Laura M. Ladwig, University of New Mexico; Amaris L. Swann, University of New Mexico, Sevilleta LTER; Yang Xia, University of New Mexico; Scott L. Collins, University of New Mexico
1:50 PM
Nitrogen deposition across scales: Hotspots and gradients in a savanna landscape
Elise M. Tulloss, University of California, Davis; Mary L. Cadenasso, University of California, Davis
2:10 PM
Nitrogen inputs accelerate phosphorus mineralizing enzymes across a wide variety of terrestrial ecosystems
Alison R. Marklein, University of California - Davis; Benjamin Z. Houlton, University of California, Davis
2:30 PM
Greenhouse gas dynamics in high elevation lakes receiving atmospheric nitrogen deposition (Colorado, USA)
Michelle L. McCrackin, Arizona State University; James Elser, Arizona State University
2:50 PM
Effects of gaseous nitrogen dioxide deposition on plant nitrogen status and performance in key serpentine grassland species
Dena M. Vallano, University of California Santa Cruz; Paul C. Selmants, University of Hawaii at Manoa; Erika S. Zavaleta, University of California, Santa Cruz
3:10 PM
3:20 PM
Nitrogen deposition near roadways in south-central New York
Weixing Zhu, Binghamton University (SUNY); Miranda A. Kearney, State University of New York - Binghamton; Timothy Scott, State University of New York - Binghamton; Jonathan Schmitkons, State University of New York - Binghamton; Joseph Graney, State University of New York - Binghamton
3:40 PM
Nitrogen Dynamics: A Graph-Theoretic Approach
Kusum Naithani, The Pennsylvania State University; Erica Smithwick, The Pennsylvania State University
4:00 PM
Microbial functional diversity profiles in response to simulated nitrogen deposition and variable precipitation in the Chihuahuan Desert, Big Bend National Park, TX
Heath Grizzle, Texas Tech University; Natasja C. Van Gestel, Texas Tech University; Traesha R. Robertson, Texas Tech University; Colin Bell, Colorado State University; David T. Tissue, Hawkesbury Institute for the Environment, University of Western Sydney, Richmond NSW; John Zak, Texas Tech University
4:20 PM
Isotopic investigation of nitrogen deposition along a highway road gradient
Katherine M. Middlecamp, University of Pittsburgh; Emily M. Elliott, University of Pittsburgh
4:40 PM
Changes over 10 years in soil nitrogen dynamics and stem growth of forest trees in response to long-term nitrogen fertilization in a mid-Appalachian forest
Jeffrey D. May, Marshall University; Lauren E. Brooks, Marshall University; Mary Beth Adams, USDA Forest Service