Bioassessment I

Session 8 (Contributed)
Wednesday, May 28, 3:15 PM-5:00 PM, Athena CD
Moderator: Johnson

3:15 (49) Agricultural landuse across a gradient: effects on stream integrity reflected by macroinvertebrates, algae, water quality and habitat.
I.R. Waite and K.D. Carpenter. U.S.Geological Survey, 10615 SE Cherry Blossom Dr., Portland, OR 97216

3:30 (50) Influence of riparian vegetation on water quality, in-stream habitat, and macroinvertebrates in a Southern Illinois agricultural landscape.
M.L. Stone¹, M.R. Whiles¹, J.A. Webber², and K.J. Williard². ¹Department of Biology, Southern Illinois University, Carbondale, IL 62901, ²Department of Forestry, Southern Illinois University, Carbondale, IL 62901

3:45 (51) Influence of spatial factors on linkages among watershed landcover, environmental conditions, and macroinvertebrate assemblages in coastal-plain streams.
R.S. King¹, M.E. Baker¹, M. Hurd², P.F. Kazyak², D.F. Whigham¹, and D.E. Weller¹. ¹Smithsonian Environmental Research Center, Box 28, Edgewater, MD 21037, ²Maryland Department of Natural Resources, Annapolis, MD 21401

4:00 (52) Relationship between the riparian vegetation environment and stream benthic invertebrate communities at two scales.
L. Rios and R.C. Bailey. Department of Biology, The University of Western Ontario, London, Ontario, Canada N6A 5B7

4:15 (53) Functional organization of benthic invertebrate communities along multi-scale environmental gradients.
N.L. Poff¹, B.P. Bledsoe², J.D. Olden¹, and A.N. Flores². ¹Department of Biology, Colorado State University, Fort Collins, Colorado, USA 80523, ²Department of Civil Engineering, Colorado State University, Fort Collins, Colorado, USA 80523

4:30 (54) Temporal resolution in stream bioassessment using macroinvertebrates – Do snap shots show it all?
W. Goedkoop and R.K. Johnson. Department of Environmental Assessment, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden

4:45 (55) A procedure for identifying reference areas in highly modified landscapes.
L.B. Johnson¹, J. Schuldt², G.E. Host¹, T. Hollenhorst¹, J.J.H. Ciborowski³, and C. Richards⁴. ¹Natural Resources Research Institute, University of Minnesota, Duluth, MN 55811, USA, ²Department of Biology, University of Wisconsin, Superior, WI 54880, USA, ³Department of Biological Sciences & Great Lakes Inst. for Environ. Res, University of Windsor, Windsor, ON N9B 3P4, CA, ⁴Minnesota Sea Grant, University of Minnesota, Duluth, MN 55812, USA