COS 29 - Biogeochemistry: Atmospheric N Deposition Effects

Tuesday, August 7, 2012: 8:00 AM-11:30 AM
B114, Oregon Convention Center
8:00 AM
 Lichen responses to different forms of nitrogen in the Los Angeles Basin: Implications for critical levels and loads
Sarah Jovan, US Forest Service; Jennifer A. Riddell, Arizona State University; Pamela Padgett, USDA Forest Service; Thomas H. Nash III, University of Wisconsin
8:20 AM
 Determining the elusive baseline for surface water chemistry at the Hubbard Brook Experimental Forest
Gene E. Likens, Cary Institute of Ecosystem Studies; Donald C. Buso, Cary Institute of Ecosystem Studies
8:40 AM
 Chronic simulated nitrogen deposition and the decomposition of dead woody material along a latitudinal gradient in Michigan
Bethany J. Lyons, Michigan Technological University; Andrew J. Burton, Michigan Technological University
9:00 AM
 Assessing long-term monitoring programs for sulfur, nitrogen, and mercury deposition and impacts in New York state
Carrie R. Levine, University of California, Berkeley; Ruth D. Yanai, SUNY College of Environmental Science and Forestry; Gregory Lampman, NYSERDA
9:20 AM
 Nitrogen deposition in drylands: How anthropogenic nitrogen inputs affect coupled biogeochemical cycles in the Four Corners Region, U.S.A.
Sasha C. Reed, U.S. Geological Survey; Carla Roybal, U.S. Geological Survey; Timothy E. Crews, The Land Institute; Lisa Floyd-Hanna, Prescott College; Mark Miller, National Park Service; Michael C. Duniway, U.S. Geological Survey; Jayne Belnap, U.S. Geological Survey
9:40 AM
9:50 AM
 Deposition of gaseous reactive nitrogen to forests and other ecosystems in the San Bernardino Mountains, California
Andrzej Bytnerowicz, USDA Forest Service; Robert F. Johnson, University of California; Leiming Zhang, Environment Canada; G. Darrel Jenerette, University of California; Susan Schilling, USDA Forest Service; Edith Allen, University of California, Riverside
10:10 AM
 Fog-mediated energy and nutrient fluxes through food webs in coastal desert ecosystems
Angélica L. González, University of British Columbia; James J. Elser, Arizona State University; Juan J. Armesto, Universidad Católica de Chile, Institute of Ecology and Biodiversity; Pablo A. Marquet, Santa Fe Institute
10:30 AM
 Species re-ordering due to long-term nitrogen and phosphorous inputs has consequences for plant community diversity and productivity
Meghan L. Avolio, University of Utah; Sally E. Koerner, Duke University; Kimberly J. La Pierre, UC Berkeley; Melinda D. Smith, Colorado State University; Kevin Wilcox, Colorado State University; Scott L. Collins, University of New Mexico
10:50 AM
 Heterotrophic respiration in northern hardwood forest soils after 14 years of nitrogen addition
Alexandra Rodriguez, Cary Institute of Ecosystem Studies; Gary M. Lovett, Cary Institute of Ecosystem Studies; Kathleen C. Weathers, Cary Institute of Ecosystem Studies; Mary A. Arthur, University of Kentucky; Pamela H. Templer, Boston University; Christine L. Goodale, Cornell University; Lynn M. Christenson, Vassar College
11:10 AM
 Mycorrhizal associations of dominant tree species help explain variation in forest ecosystem response to N deposition
Meghan G. Midgley, Indiana University; Richard P. Phillips, Indiana University