Urban Ecology II

Session 55 (Contributed)
Saturday, June 1, 1:00 PM-2:45 PM, Westmoreland
Moderator: Marti, E.

1:00 (371) IN SITU TESTS FOR EFFECTS OF URBAN RUNOFF ON STREAM BENTHIC INVERTEBRATES.
L.C. Grapentine, Q. Rochfort, J. Marsalek, C. Logan, and B. Brownlee. National Water Research Institute, Environment Canada, 867 Lakeshore Rd., Burlington, Ontario, Canada L7R 4A6

1:15 (372) BENTHIC INVERTEBRATE BIOASSESSMENTS OF URBAN/SUBURBAN STREAMS WITHIN ALLEGHENY COUNTY,PENNSYLVANIA.
M. Koryak and L.J. Stafford. U.S. Army Corps of Engineers, Pittsburgh, PA 15222

1:30 (373) PCB CONTAMINATION TRACKDOWN IN GREAT LAKES WATERSHEDS.
R. Fletcher¹ and A. Dove². ¹Ministry of the Environment, Environmental Monitoring and Reporting Branch, 125 Resources Road, Etobicoke, Ontario, M9P 3V6, ²Environment Canada, Ontario Region, Ecosystem Health Division, 867 Lakeshore Road, P.O. Box 5050, Burlington, Ontario, L7R 4A6

1:45 (374) THE USE OF THE NATURAL ABUNDANCE OF ¹⁵N AND ¹³C TO TRACE FOOD WEB AND ANTHROPOGENIC NITROGEN IN AN URBAN HEADWATER STREAM.
A.J. Ulseth and A.E. Hershey. Department of Biology, University of North Carolina Greensboro, Greensboro, NC 27402

2:00 (375) RESPONSE OF FISH, INVERTEBRATES, AND ALGAE TO A GRADIENT OF URBANIZATION IN THE VALLEY AND RIDGE PHYSIOGRAPHIC PROVINCE OF ALABAMA AND GEORGIA.
H. Zappia¹, B.J. Caskey¹, T.F. Cuffney², J.C. Coles³, E.M. Giddings⁴, and G. McMahon². ¹U.S. Geological Survey, 2350 Fairlane Dr., Montgomery, AL 36116, ²U.S. Geological Survey, 3916 Sunset Ridge Rd., Raleigh, NC 27607, ³U.S. Geological Survey, 210 Bearfoot Rd., Northborough, MA 01532, ⁴U.S. Geological Survey, 2239 W. Orton Circle, West Valley, UT 84119

2:15 (376) COMPARISONS OF THE RESPONSE OF FISH, INVERTEBRATES, AND ALGAE TO A GRADIENT OF URBANIZATION IN EASTERN NEW ENGLAND.
J.F. Coles¹, T.F. Cuffney², G. McMahon², E.M. Giddings³, and H. Zappia⁴. ¹U.S. Geological Survey, 10 Bearfoot Rd., Northborough, MA 01532, ²U.S. Geological Survey, 13916 Sunset Ridge Rd., Raleigh, NC 27607, ³U.S. Geological Survey, 32329 Orton Circle, UT 84119, ⁴U.S. Geological Survey, 42350 Fairlane Drive, Montgomery, AL 36116

2:30 (377) CHANGES IN STREAM BIOLOGICAL ASSEMBLAGES IN RESPONSE TO URBANIZATION.
E.M. Giddings¹, T.M. Short², C.M. Albano¹, R.L. Baskin¹, T.F. Cuffney³, G. McMahon³, J.C. Coles⁴, and H. Zappia⁵. ¹U.S. Geological Survey, 2329 W. Orton Circle, Salt Lake City, UT 84119, ²U.S. Geological Survey, 345 Middlefield Rd., Menlo Park, CA 94025, ³U.S. Geological Survey, 3916 Sunset Ridge Rd., Raleigh, NC 27607, ⁴U.S. Geological Survey, 10 Bearfoot Rd., Northborough, MA 01532, ⁵U.S. Geological Survey, 2350 Fairlane Dr., Suite 120, Montgomery, AL 36116