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18 Food Webs I

Tuesday, May 19, 2009: 8:00 AM-10:00 AM
Pantlind Ballroom
Moderator:
Jonathan P. Benstead
8:00 AM
117
Temporal patterns of isotopic enrichment in a Southeast Alaska stream foodweb: The role of salmon spawners and environmental context
Dominic T. Chaloner, University of Notre Dame; Alexander J. Reisinger, Kansas State University; Scott D. Tiegs, Oakland University; Peter S. Levi, University of Notre Dame; Janine Rüegg, University of Notre Dame; Emily Y. Campbell, Michigan State University; Jennifer L. Tank, University of Notre Dame; Gary A. Lamberti, University of Notre Dame
8:15 AM
118
Retention of lake-derived 15N in arctic streams in different landscape settings
Lindsey D. Pollard, UNC-Greensboro; A.E. Hershey, UNC-Greensboro
8:30 AM
119
Trophic enrichment of deuterium in aquatic food webs? A cautionary note on the use of δD measurements to infer origins of fish
David X. Soto, Centre for Advanced Studies of Blanes (CEAB-CSIC); Keith A. Hobson, Environment Canada; Leonard I. Wassenaar, Environment Canada; Jordi Catalan, Centre for Advanced Studies of Blanes (CEAB-CSIC)
8:45 AM
120
Temporal patterns of terrestrial and aquatic invertebrate prey abundance for juvenile Chinook salmon in a subdrainage of the Yukon River, Alaska
Laura Gutierrez, University of Alaska Fairbanks; Mark S. Wipfli, University of Alaska Fairbanks; Nicholas Hughes, University of Alaska Fairbanks; Elizabeth C. Green, University of Alaska Fairbanks
9:00 AM
121
Red alder enriches riparian food webs of the Pacific Northwest
Susan M. Shirley, Oregon State University; David E. Hibbs, Oregon State University; Judith L. Li, Oregon State University; Hans Luh, Oregon State University; Steven Perakis, USGS Forest and Rangeland Ecosystem Science Center; Oregon State University; Christian Torgersen, USGS FRESC Cascadia Field Station, University of Washington
9:15 AM
122
Food supplies that drive fish productivity: Modeling prey flux in riverine networks
Mark S. Wipfli, University of Alaska Fairbanks; Colden V. Baxter, Idaho State University
9:30 AM
123
Streambed geomorphology is a key determinant of the benthic distribution of forest-to-stream resource subsidies
Trent M. Hoover, University of British Columbia; John S. Richardson, University of British Columbia
9:45 AM
124
Linking bioenergetics of a top stream predator to ecosystem function in an arctic spring-fed stream
Jonathan P. Benstead, The University of Alabama; Alexander D. Huryn, University of Alabama; Stephanie M. Parker, University of Alabama; James B. Ramsey, The University of Alabama
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