Global ETD Search
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Showing 1 to 6 of 6 for “"Elimia"”.
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Trematode Communities of the Appalachian Stream Snail, Elimia proxima: the Importance of Scale in Parasite Ecology Research
… disease. By examining patterns of infection in Elimia (= Oxytrema = Goniobasis) proxima snails, my dissertation research investigated the environmental factors and ecological processes that structure trematode communities in streams. First, I examined temporal variation in trematode infection of …
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Reproductive Life History and Shell Shape Variation of Three Species of Elimia (Pleuroceridae) in the Lower Etowah River Basin
… This is particularly true for the genus <em>Elimia</em>, where reliance on conchological characters described by early naturalists for species designation failed to recognize significant variability in shell morphology. In this study we examine three putative species of <em>Elimia </em>to …
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The Effects of Landfill Leachate on the Behavior, Feeding Rate, and Growth Rate of the Freshwater Prosobranch Snail Elimia Potosiensis
… rate, and growth rate of the prosobranch snail Elimia potosiensis by comparing two sites, one non-contaminated (Site NC) and one contaminated (Site C). The copper concentration resulting in a decreased feeding rate was also established. An in-situ enclosure experiment at Site NC indicated that …
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Size-Selective Predation By Ringed Crayfish (Orconectes Neglectus) On Native And Invasive Snails
… of C. chinensis and two native snails (Elimia potosiensis and Physella gyrina) to predation by the ringed crayfish (Orconectes neglectus). I conducted field surveys of snails and crayfish in three Ozark streams, plus a series of four lab experiments to determine feeding rates and prey …
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Quantifying Metagonimoides oregonensis infection distribution and effects among stream salamander hosts
… infects raccoons as definitive hosts, the snail Elimia proxima as a first intermediate host and in the southern Appalachians, encysts in the muscle tissue of a variety of second intermediate salamander hosts. My first study examined 289 individual salamanders representing six species from 23 …
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Interactions between titanium dioxide nanoparticle exposure and grazing organisms on periphyton biomass and community composition.
… There was significant mortality for the Elimia snails used in the experiment, even though the analytical data showed little uptake of titanium. The research presented here suggests that using TiO₂NPs to treat pharmaceuticals in wastewater may be very costly, based on the non-additive …