10:15 LINKING COMMUNITIES ACROSS ECOSYSTEM BOUNDRIES: THE INFLUENCE OF STREAM SUBSIDIES ON TERRESTRIAL FOODWEBS IN THE ARCTIC.
D.M. Sanzone¹, J.L. Tank², H. Oskarsson³, and J.L. Meyer¹. ¹Institute of Ecology, University of Georgia, Athens, GA, 30602 USA, ²Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana, IL, 61801 USA, ³Rannsoknastofnun Landbunadarins, Keldnaholti, 112 Reykjavik, Iceland

10:30 TROPHIC STRUCTURE AND ENERGY DEPENDENCE IN LARGE RIVER FOOD WEBS ASSESSED USING STABLE ISOTOPES.
B.R. Herwig¹, D.A. Soluk¹, D.H. Wahl², and J.M. Dettmers³. ¹Center for Aquatic Ecology, Illinois Natural History Survey, 607 East Peabody Drive, Champaign, IL 61820, ²Kaskaskia Biological Station, Illinois Natural History Survey, R.R. 1, Box 157, Sullivan, IL 61951, ³Lake Michigan Biological Station, Illinois Natural History Survey, 400 17th Street, Zion, IL 60099

10:45 ECOLOGICAL PROCESSESS IN TURBID, ARID ZONE RIVERS OF AUSTRALIA: A "BATHTUB RING CONCEPT".
P.M. Davies¹ and S.E. Bunn². ¹Department of Zoology, The University of Western Australia, Nedlands, Western Australia 6907, ²Centre of Catchment and In-stream Research, Griffith University, Nathan, Queensland 4111 Australia.

11:00 FOOD RESOURCE AVAILABILITY AND FOOD WEB STRUCTURE IN HIGH ALPINE STREAMS.
L. Fuereder¹, C. Welter¹, and J.K. Jackson². ¹Institute of Zoology and Limnology, University of Innsbruck, A-6020 Innsbruck, Austria, ²Stroud Water Research Center, Avondale, PA 19311, U.S.A.

11:15 CONCORDANCE OF GENETIC AND FAUNISTIC PATTERNS: AN EXPLORATION WITH STONEFLIES (PLECOPTERA).
A.L. Sheldon. Division of Biological Sciences, The University of Montana, Missoula, Montana 59812 USA

11:30 STREAM BOTTOM CHARACTERISTICS AS A FUNCTION OF HYDROGEOMORPHIC REGION, MATURE FOREST COVER, AND WATERSHED VARIABLES.
D.L. Taylor¹, V. Brady², and J.C. Brazner¹. ¹USEPA Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN 55804, ²NRC Post-Doctoral Fellow, USEPA Mid-Continent Ecology Division, 6201 Congdon Blvd, Duluth, MN 55804

11:45 SPECIES SELECTION AND THE ASSEMBLY OF ALGAL COMMUNITIES ALONG COMBINED NUTRIENT AND SALINITY GRADIENTS IN A LARGE, LOWLAND RIVER.
H.V. Leland and L.R. Brown. Water Resources Division, U.S. Geological Survey, Boulder, Colorado 80303