Session: Cycling - nitrogen (ESA/SER Joint Meeting (August 5 -- August 10, 2007))

PS 41-15

N₂O flux in a semiarid grasslands depends upon rainfall event size, N addition, and soil microsite
Caitlin C. Smith, Mt. Holyoke College; Chelsea L. Crenshaw, University of New Mexico; Joseph E. Fargione, The Nature Conservancy

PS 41-16

Grassland and forest soil nitrogen transformations and microbial function in the North American Midwest
Lisa K. Tiemann, University of Kansas; Sharon A. Billings, University of Kansas

PS 41-17

The response of gross nitrogen mineralization and nitrification to long and short-term changes in moisture and temperature: The relative roles of soil climate, chemistry, and microbes
Damon C. Bradbury, University of California, Berkeley; Mary K. Firestone, University of California, Berkeley

PS 41-18

AAP1 functions in uptake of neutral amino acids and glutamate by Arabidopsis roots
Janet Chen, University of Wyoming; Yong-Hwa Lee, Washington State University; Justin Foster, Washington State University; Mechthild Tegeder, Washington State University

PS 41-19

Effects of tree species and nitrogen fertilization on soil phosphorus concentrations
Matthew P. Weand, Southern Polytechnic State University; Mary A. Arthur, University of Kentucky; Gary Lovett, Cary Institute of Ecosystem Studies; Kathleen C. Weathers, Cary Institute of Ecosystem Studies

PS 41-20

Looking for hotspots of nitrogen cycling in an alpine-subalpine watershed
Anthony Darrouzet-Nardi, U.S. Geological Survey

PS 41-21

Does soil organic matter type influence nitrogen retention?
Marissa Weiss, Cornell University; Christine Goodale, Cornell University

PS 41-22

Elevated CO₂ increases long-term N mineralization and plant N uptake in a semiarid grassland: results from a five-year ¹⁵N tracer study
Feike A. Dijkstra, University of Sydney; Elise Pendall, University of Wyoming; Arvin R. Mosier, USDA-ARS (retired); Jennifer Y. King, University of California, Santa Barbara; Daniel G. Milchunas, Colorado State University; Jack A. Morgan, USDA-ARS

PS 41-23

Fate of simulated atmospherically deposited nitrogen in a plant-soil mesocosm
Wenwen Wang, State University of New York - Binghamton; Weixing Zhu, Binghamton University (SUNY)

PS 41-24

Abiotic reactions play a role in nitrate retention in three agroecosystems
Barbara E. Fricks, Colorado State University; Jason P Kaye, Penn State University; Rita Seidel, The Rodale Institute

PS 41-25

Long-term effects of cattle grazing on nitrogen dynamics in a montane riparian ecosystem
Agnieszka Przeszlowska, Colorado State University; M.J. Trlica, Colorado State University

PS 41-26

Microbial community structure and nutrient cycling dynamics in soils exposed to chronic warming and nitrogen additions: Preliminary results
Alexandra R. Contosta, University of New Hampshire; Serita Frey, University of New Hampshire

PS 41-27

The role of phyllosphere microorganisms in nitrogen transformations in the canopies of black spruce plantations in northern Ontario, Canada
Carrie L. Woods, Clemson University; Shelley L. Hunt, University of Guelph; Andrew M. Gordon, University of Guelph

PS 41-28

Plasticity in preferential nitrogen uptake by perennial woody shrubs
Francis H. Bozzolo, San Diego State University; David A. Lipson, San Diego State University; Janet Franklin, Arizona State University

PS 41-29

Ammonium fixation dynamics in sub-grade decomposed granite
Daniel E. Rider, UC Davis; Re O'Dell, UC Davis; Dg McGahan, UC Davis; Vp Claassen, UC Davis

PS 41-30

Linking changes in plant growth, soil structure, and N-transformers in a soybean agroecosystem under elevated CO₂ and O₃
Haegeun Chung, University of California-Davis; Kate M. Scow, University of California-Davis; Michael J. Sadowsky, University of Minnesota; Chris van Kessel, University of California-Davis; Johan Six, ETH

PS 41-31

The impact of low-head dams on riverine and riparian nitrogen dynamics
Lauren E. McGee, Ohio State University; Virginie Bouchard, Ohio State University

PS 41 - Cycling - nitrogen