Organic Matter Processing 1

Session 30 (Contributed)
Wednesday, June 9, 8:00 AM-9:45 AM, IRC5
Moderator: L. Kaplan

8:00 (196) Influence of agriculture on leaf breakdown in southern Appalachian streams.
E.M. Hagen and J.R. Webster. Department of Biology, Virginia Tech, Blacksburg, Virginia, U.S.A. 45501

8:15 (197) Macroinvertebrate functional feeding group ratios as surrogates for ecosystem parameters in agricultural streams.
M.E. McTammany¹, K.R. Cook², and E.F. Benfield³. ¹Biology Department, Bucknell University, Lewisburg, PA 17837, ²Lake of the Woods Association, 102 Lakeview Parkway, Locust Grove, VA 22508, ³Biology Department, Virginia Tech, Blacksburg, VA 24061

8:30 (198) Does invertebrate community composition differ between leaf packs found in depositional and accumulative zones?
A.R. Danger and B.J. Robson. School of Ecology and Environment, Deakin University, Warrnambool, Victoria, Australia, 3280

8:45 (199) Factors limiting population growth of a shredder in leaf processing.
I. Pardo. Departamento de Ecología y Biología Animal, Universidad de Vigo, 36200 Vigo. Spain

9:00 (200) Stream leaf litter breakdown along a pH–gradient during snow melt episodes.
Z. Petrin¹, B.G. McKie¹, I. Buffam², H. Laudon², and B. Malmqvist¹. ¹Department of Ecology and Environmental Science, Umeå University, Umeå, Sweden, ²Department of Forest Ecology, Swedish University of Agricultural Sciences, Umeå, Sweden

9:15 (201) Factors influencing lotic leaf litter decomposition rates: results of a large scale study in Western streams.
T. Simmons and C.P. Hawkins. AWER Department and The Ecology Center, Utah State University, Logan, Utah 84322

9:30 (202) Role of physical fragmentation and invertebrate activity in the breakdown of leaves.
V.J.L. Ferreira¹, M.A.S. Graça¹, and J.P. Lima². ¹Departamento de Zoologia e IMAR- Centro Interdisciplinar de Coimbra, Universidade de Coimbra, 3004- 517 Coimbra, Portugal , ²Laboratório de Hidraúlica, Departamento de Engenharia Civil, Universidade de Coimbra, 3030- 290 Coimbra, Portugal