HR: 1330h
AN: NB33C-08    [Abstracts]
TI: Microhabitat Use by Trichoptera in a Lake Erie Coastal Wetland
AU: * Cook, C M
EM: ccook07@jcu.edu
AF: John Carroll University, Dept. Of Biology 20700 North Park Blvd , University Heights, OH 44118 United States
AU: Keiper, J
EM: jkeiper@cmnh.org
AF: Cleveland Museum of Natural History, Dept. of Invertebrate Zoology 1 Wade Oval Dr., Cleveland, OH 44106 United States
AB: We examined the differences in microhabitat use by caddisfly (Trichoptera) adults at a Lake Erie coastal wetlands complex in northwestern Ohio. Light traps were employed in three vegetative zones; a Pontedaria stand, a submerged willow/cottonwood forest, and an adjacent open water area. We used concealed UV lights inside of replicate traps (n = 4 per habitat), attracting only caddisflies near the habitat, that were run May, June, and September 2004. Analysis of the data revealed differences in adult abundance between habitats and months for some taxa. Principal components analyses run at the level of genera and species showed that sites cluster by habitat type and by month, suggesting differences occur temporally and spatially but not exclusively of each other. ANOVA reveals statistical differences between habitats and months for the most common taxa. Hydroptilidae, including Agraylea multipunctata, Orthotrichia aegerfasciella, and Oxyethira pallida, were the most abundant taxa contributing approximately 90% of samples depending on vegetative zone. Information on the microscale preferences of adult caddisflies indicates potential habitat specificity. This may aid managers who decide which habitats within wetlands to conserve based on productivity and unique potential contribution of insect taxa.
DE: 9901 NABS Student Award - Basic Research
SC: North American Benthological Society [NB]
MN: 2005 Joint Assembly