1:00 FISH MEDIATED ALTERATION OF INVERTEBRATE COMMUNITY SIZE DISTRIBUTIONS IN TWO PRAIRIE WETLANDS.
K.D. Zimmer¹, M.A. Hanson², M.G. Butler¹, and W.G. Duffy³. ¹Department of Zoology, North Dakota State University, Fargo, ND 58105, ²Wetland Wildlife and Populations Research Group, Minnesota Department of Natural Resources, Bemidji, MN 56601, ³California Cooperative Fisheries Research Unit, Humboldt State University, Arcata, CA 95521

1:15 FISH MEDIATED ALTERATION OF INVERTEBRATE COMMUNITY SIZE DISTRIBUTIONS: CONSEQUENCES FOR SECONDARY PRODUCTION.
M.G. Butler¹, K.D. Zimmer¹, M.A. Hanson², and W.G. Duffy³. ¹Department of Zoology, North Dakota State University, Fargo, ND 58105, ²Wetland Wildlife and Populations Research Group, Minnesota Department of Natural Resources, Bemidji, MN 56601, ³California Cooperative Fisheries Research Unit, Humboldt State University, Arcata, CA 95521

1:30 RELATIONSHIPS BETWEEN BENTHIC INVERTEBRATES AND ENVIRONMENTAL GRADIENTS IN COLORADO MOUNTAIN LAKES.
B. Moraska¹, D.M Carlisle¹, B. Johnson¹, J. Baron^2,3, K. Nydick², and A. Ramey¹. ¹Department of Fishery and Wildlife Biology, Colorado State University, Fort Collins, CO, USA 80523, ²Natural Resources Ecology Laboratory, Colorado State University, Fort Collins, CO, USA 80523, ³U.S. Geological Survey, Biological Research Division, Fort Collins, CO, USA 80523

1:45 MICROHABITAT SELECTION BY THE AMPHIPODS ECHINOGAMMARUS ISCHNUS AND GAMMARUS FASCIATUS IN LABORATORY AND FIELD EXPERIMENTS.
C.D.A. Van Overdijk^1,2, I.A. Grigorovich^1,2, and H.J. MacIsaac^1,2. ¹Great Lakes Institute for Environmental Research, Windsor, Ontario, Canada N9B 3P4, ²Department of Biological Sciences, University of Windsor, Windsor, Ontario, Canada N9B 3P4

2:00 VARIATION OF LANDSCAPE SCALE HYDROLOGIC AND GEOMORPHIC GRADIENTS AFFECT SOIL DEVELOMENT AND VEGETATION RESPONSE IN INTERMONTANE POTHOLE WETLANDS IN NORTHWESTERN MONTANA.
B.J. Cook and F.R. Hauer. Flathead Lake Biological Station, The University of Montana, Polson, Montana USA 59860-9659

2:15 RIVER-FLOODPLAIN INTERACTION DETERMINES PRODUCTION DYNAMICS OF MAYFLIES IN A RIPARIAN SEDGE-MEADOW IN MAINE.
A.D. Huryn. Department of Biological Sciences, University of Maine, Orono, Maine 04469-5722

2:30 RELATIONSHIPS BETWEEN NEMATOCERAN DIPTERA COMMUNITIES AND HYDROPATTERN IN THE ROCKY GLADES, EVERGLADES NATIONAL PARK.
R.E. Jacobsen and S.A. Perry. South Florida Natural Resources Center, Everglades National Park, Homestead, FL 33034

2:45 CHIRONOMIDAE ABUNDANCE, DIVERSITY, BIOMASS, AND PRODUCTION IN TWO WETLAND TYPES.
S.A. Entrekin^1,2, D.P. Batzer¹, and S.W. Golladay². ¹Department of Entomology, University of Georgia, Athens, Georgia 30602, ²Jones Ecological Research Center, Newton, Georgia 31770