Session: Nutrient cycling: Limiting resources, interactions, and ecosystem restoration (ESA/SER Joint Meeting (August 5 -- August 10, 2007))

Friday, August 10, 2007: 8:00 AM-11:30 AM

Almaden Blrm I, San Jose Hilton

8:00 AM

Ecosystem response to the urban atmosphere in the Sonoran desert
Sharon J. Hall, Arizona State University; Ryan Sponseller, University of Alabama; Nancy Grimm, Arizona State University; Jason P. Kaye, Pennsylvania State University; Jonathan Allen, Harvard University

8:20 AM

COS 153-2

Soil nutrient pools and dynamics across a gradient of human influence
Rachel C. Davies, Arizona State University; Sharon J. Hall, Arizona State University

8:40 AM

COS 153-3

Phosphorus and cation losses as a function of soil age and climate in the Hawaiian Islands
Stephen Porder, Brown University; Oliver A. Chadwick, University of California; George E. Hilley, Stanford University

9:00 AM

COS 153-4

Ecosystem impacts of invasion by an N-fixing tree in Hawaii: Sure, ecosystem nitrogen stocks increase, but what about stocks of phosphorus?
Flint Hughes, United States Department of Agriculture-Forest Service; Amanda Uowolo, USDA Forest Service

9:20 AM

COS 153-5

Hawaiian agriculture prior to Cook: Sources of nutrients to windward agricultural systems
Peter M. Vitousek, Stanford University; Molly A. Palmer, Stanford University; Oliver A. Chadwick, University of California; Anthony S. Hartshorn, Montana State University; Thegn N. Ladefoged, Auckland University; Michael W. Graves, University of New Mexico; Ka`eo Duarte, Kamehameha Schools

9:40 AM

COS 153-

Break

9:50 AM

COS 153-6

Spatial variation in the coupling of nitrogen and phosphorus uptake in stream ecosystems
John D. Schade, National Science Foundation; Camille McNeely, Eastern Washington University; Steve A. Thomas, University of Nebraska-Lincoln; Jill R. Welter, St. Catherine University; Jacques C. Finlay, University of Minnesota; Mary Power, University of California Berkeley

10:10 AM

COS 153-7

Soil and plant 15N values reveal ecosystem nitrogen dynamics and indicate niche partitioning for soil nitrogen among plant species
Ansgar Kahmen, ETH Zurich; Wolfgang Wanek, University of Vienna, Austria; Nina Buchmann, Institute of Agricultural Science, ETH Zurich

10:30 AM

COS 153-8

Competition for nitrogen across a rainfall gradient: Interaction between nitrogen and water can lead to coexistence on a single limiting resource
Katherine A. Everard, University of Auckland; Claire de Mazancourt, Theoretical and Experimental Ecology Station (CNRS); Eric W. Seabloom, University of Minnesota; W. Stanley Harpole, Iowa State University

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COS 153 - Nutrient cycling: Limiting resources, interactions, and ecosystem restoration