Friday, August 10, 2007: 8:00 AM-11:30 AM
Willow Glen III, San Jose Marriott
COS 162 - Stable isotope and tracer applications
8:00 AMCOS 162-1What’s for dinner in the salt marsh?  Stable isotope additions reveal the importance of algae  
Kari Galván, Louisiana State University
8:20 AMCOS 162-2Large-scale movement by a North American dragonfly as revealed through genetic and isotope proxies: A new approach to insect migration
John H. Matthews, University of Texas, Thomas Juenger, University of Texas, Leonard Wassenaar, Environment Canada, Jay Banner, University of Texas, Larry Mack, University of Texas
8:40 AMCOS 162-3Estimating impacts of invasive rats using analyses of stable isotopes from laboratory and field studies
Carolyn M. Kurle, University of California Santa Cruz, Donald A. Croll, University of California Santa Cruz, Bernie R. Tershy, University of California Santa Cruz
9:00 AMCOS 162-4Micro-geographic variation in isotopic composition of a rattlesnake prey base: Implications for studies using stable isotopes as dietary indicators
Melissa A. Pilgrim, Savannah River Ecology Laboratory, Terence M. Farrell, Stetson University, Christopher S. Romanek, Savannah River Ecology Laboratory
9:20 AMCOS 162-5A trail of isotopes from food webs to ecosystems
Paul Dijkstra, Northern Arizona University, Jeffrey S. Coyle, Northern Arizona University, Corinne M. LaViolette, Northern Arizona University, Paul C. Selmants, Northern Arizona University, Egbert Schwartz, Northern Arizona University, Stephen C. Hart, Northern Arizona University, Bruce A. Hungate, Northern Arizona University
9:40 AM Break
9:50 AMCOS 162-6Diet switching in wild African elephants in response to primary production: Evidence from time-specific stable isotope chronologies
George Wittemyer, University of California, Berkeley, Thure Cerling, University of Utah
10:10 AMCOS 162-7Chronic nitrogen additions and photosynthetic gas exchange in sugar maple: Instantaneous measurements and a stable isotope chronosequence
Alan F. Talhelm, Michigan Technological University, Kurt S. Pregitzer, Michigan Technological University, Andrew J. Burton, Michigan Technological University
10:30 AMCOS 162-8Nitrate reductase activity and foliar δ15N measurements as integrative indicators of foliar incorporation of atmospheric nitrogen pollution
Dena M. Vallano, Cornell University, Jed P. Sparks, Cornell University
10:50 AMCOS 162-9Quantifying in situ bioenergetics in aquatic ecosystems using neutral chemical markers
Michael D. Burtnyk, University of Windsor, Gord Paterson, University of Windsor, Ken G. Drouillard, University of Windsor, G. Doug Haffner, University of Windsor

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