Community Ecology

Session 102 (Poster)
Tuesday, June 6, 2:00 PM-5:30 PM, Explorer Hall

(543) That’s the way the egg hatches: Determining patterns in egg size, clutch variability, and hatchling emergence in an exotic versus native population of applesnails.
M.A. Barnes¹, B.B. Boland¹, M. Meerhoff², C. Fosalba², N. Mazzeo², and R.L. Burks¹. ¹Department of Biology, Southwestern University, Georgetown, TX 78626, ²Departamento de Ecología, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay

(544) Distinct palettes: feeding preferences between native and exotic applesnail populations and the implications for invasion.
B.B. Boland¹, M. Meerhoff², C. Fosalba², N. Mazzeo², and R.L. Burks¹. ¹Department of Biology, Southwestern University, Georgetown, TX 78626, ²Departamento de Ecología, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay

(545) Chironomid community assemblage as mediated by fluvial regime, nutrients, and competitive interactions.
E. Bright and M.J. Wiley. School of Natural Resources and Environment, The University of Michigan, Ann Arbor, Michigan, USA.

(546) Rafting invertebrates: downstream drift on leaves.
A.V. Brown, J.M. Johnson, and K.B. Brown. Department of Biological Sciences, University of Arkansas, Fayetteville, Arkansas, USA 72701

(547) Response of tropical diatom communities to nutrient and salinity enrichment in artificial streams.
B. Bryan and A. Ramirez. Institute for Tropical Ecosystems Studies, University of Puerto Rico, Río Piedras, Puerto Rico 00931

(548) Effects of spawning salmon on benthic macroinvertebrates in four southcentral Alaska streams.
B.W. Fenty¹, R.J. Piorkowski², and L.A. Cornick¹. ¹Department of Environmental Science, Alaska Pacific University; Anchorage, Alaska, ²Alaska Department of Fish and Game; Juneau, Alaska

(549) Characterization and comparison of stream macroinvertebrate communities of forested and deforested catchments on the eastern shore of Lake Tanganyika, Tanzania.
M.R. Fuller¹, C.M. O'Reilly², and A.S. Flecker¹. ¹Department of ecology and evolutionary biology, Cornell University, Ithaca, New York, 14853, USA, ²Biology Department, Bard College, Annandale-on-Hudson, NY 12504-5000, USA

(550) Colonization of Potamophylax cingulatus (Trichoptera, Limnephilidae) in Iceland during the last 30 years.
ER Hannesdottir and G.M. Gislason. Institute of Biology, University of Iceland, Askja – Natural Science Building Reykjavik, Iceland

(551) Ecological characterization of the benthic macroinvertebrates in the interior zone of the Patzcuaro lake, Mich. México.
R Huerto-Delgadillo, P Alonso, and B Brug. Instituto Mexicano de Tecnología del Agua. Paseo Cuauhnáhuac 8532, Col. Progreso. Jiutepec, Morelos. México 62550

(552) Tributary inflow modified the benthic macroinvertebrate assemblages in the downstream of the Agi-gawa dam .
I Katano¹, Y. Kawaguchi², T Minagawa¹, T Tashiro¹, and Y Kayaba¹. ¹Aqua Restoration Research Center, Kawashima Kasada-machi, Kakamigahara, Gifu, 501-6021, Japan, ²Faculty of Engineering, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan

(553) Structure and composition of aquatic fauna in five ephemeral streams in a tropical dry forest in Mexico.
C. Mathuriau and M. Maass. Centro de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, A. P. 27-3 Santa María de Guido, Morelia, Michoacán, México 58090

(554) A multivariate information-theoretic approach to assessing impacts of reservoir drawdown on benthic communities.
D.C. McEwen and M.G. Butler. Department of Biological Sciences, North Dakota State University, Fargo, ND, USA 58105

(555) Predicting invertebrate community reactions to flow regimes .
L.E. McMullen and D.A. Lytle. Department of Zoology, Oregon State University, Corvallis, Oregon, United States 97331

(556) The role of predators in structuring shrimp communities in headwater streams in Puerto Rico.
M.E. Ocasio Torres¹, C.L. Hein², T.A. Crowl², and P. Pepalla². ¹Department of Biology, University of Puerto Rico-Humacao, Humacao, Puerto Rico 00791, ²Ecology Center, Utah State University, Logan, Utah, U.S.A. 84321

(557) Long-term spatial and temporal variability of benthic macroinvertebrate communities.
E.E. OConnor and L.A. Smock. Department of Biology, Virginia Commonwealth University, Richmond, Virginia 23284

(558) Aquatic invertebrate diversity in temporary ponds inhabited by Peltophryne lemur tadpoles, Puerto Rico.
C. Ortiz¹, A. Ramirez², and J.R. Ortiz-Sayaz². ¹Environmental Sciences Program, University of Puerto Rico, Rio Piedras, PR 00931, ²Institute for Tropical Ecosystem Studies, University of Puerto Rico, Rio Piedras, PR 00931

(559) Geographic and hydrologic patterns of biological and water-quality conditions in streams of the central United States.
D.A. Peterson¹, S.D. Porter², and S.V. Mize³. ¹U.S. Geological Survey, Cheyenne, WY 82001, ²U.S. Geological Survey, Denver, CO 80225, ³U.S. Geological Survey, Baton Rouge, LA 70816

(560) Population genetics of zebra and quagga mussels in the Finger Lakes: What can genetic analyses tell us about colonization dynamics?
B.C.L. Shelley and K. Timmer. Department of Biology, Hobart and William Smith Colleges, Geneva, NY 14456 U.S.A.

(561) Relationships of aquatic insect communities between headwater and main–stem streams in urban and rural watersheds.
R.F. Smith¹, M.A. Palmer², W.O. Lamp¹, and L.E. Culler¹. ¹Department of Entomology, University of Maryland, College Park, MD 20742, ²Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD 20688

(562) Ecoregion, landscape, and land use as factors influencing depauperate macroinvertebrate communities and implications for biomonitoring.
E.L. Smith¹, M.H. Colbo¹, and D. Cote². ¹Memorial University of Newfoundland, Department of Biology, ²Parks Canada

(563) Influence of substrate size and snail density on the growth and incidence of trematode parasitism in the stream snail Elimia flava.
A.M. Tomba and J.W. Feminella. Department of Biological Sciences, Auburn University, AL 36849-5407

(564) Influence of the flow velocity and the presence of submerged macrophytes on the functional feeding structure of macrozoobenthos community in a submontane stream.
V. Uvíra, I. Uvírová, and K. Simajchlová. Department of Zoology and Anthropology, Faculty of Science, Palacky University, Svobody 26, CZ-77146 Olomouc, Czech Republic