Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"Urban Streams"”.
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Thermal Pollution in Urban Streams of the North Carolina Piedmont
… over the next 40 years is expected to occur in urban areas (United Nations Population Division 2012). Urban areas necessarily concentrate food, energy, and construction materials, and as a result tend to be hotter and more polluted than the surrounding landscape. All urban ecosystems are thus …
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Rethinking urban streams : opportunities for the Nhieu Loc -- Thi Nghe River
… studies the paradigm shift from controlling urban streams as landscape features and liabilities to managing whole watersheds as ecosystems and assets. It examines examples of successful river restoration and conservation projects, and uses the lessons learned from these examples to suggest …
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A Biological Assessment of the Fish and Benthic Macroinvertebrates From Two Urban Streams in Springfield, Missouri
… Rapid Bioassesment Protocols for Use in Wadeable Streams and Rivers. Samples were collected in September 2004 and February 2005, and organisms were identified and counted. The number of organisms and taxa present were evaluated with regionally modified metrics to extrapolate an Index of Biotic …
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Influence of nature preserves on macroinvertebrate assemblages, water quality, and habitat quality along two urban streams
The increase in urbanization as a threat to aquatic ecosystems, particularly stream ecosystems, is of growing concern due to the reliance of the condition of surrounding watersheds. Mitigation techniques, such as riparian re-planting and habitat enhancement, are often met with little improvement in …
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Integrating Taxonomic Meta-Analysis and Mussel Physiology to Assess Secondary Salinization in Appalachian Headwaters and Urban Streams
… from fertilizer application, mining, urbanization, and de-icing salts like sodium chloride (NaCl), is elevating chloride (Cl⁻) and sodium (Na⁺) in streams. While Cl⁻ effects on streams are well-studied, Na⁺ effects are less known. Elevated Cl⁻ levels in the environment can surpass …
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Impacts of legacy mining on stream structural and functional processes in an urban stream
… to improve the understanding of mine drainage in urban watersheds, specifically how neutral mine drainage (NMD) influences urban streams. Past research on both urban streams and mine impacted streams has largely focused on characterizing streams using structural approaches although there has been …
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Quantifying the presence of current-use insecticides and toxicity of sediments in urban residential watersheds in central Texas.
… these insecticides on benthic invertebrates in urban streams is largely unknown. The objective of this study was to determine the presence and concentration of current-use pesticides in the sediments of residential streams in central Texas. Additionally, the toxicity of these sediments to …
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Nitrogen biogeochemistry in Binghamton, NY, a medium-sized urban ecosystem
… elevated nitrogen levels are characteristic of urban ecosystems. The major reasons that N is higher in cities include imports of food, fuel and fertilizer. High N export from both point- and nonpoint-sources is common in large cities. While N cycling has been studied in large urban areas, less …
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Variation in Salamander Life History and Community Composition Across an Urban Gradient in Atlanta, Georgia, USA
<p>Urbanization threatens to alter stream systems in watersheds in the eastern United States. These highly disturbed systems may result in many local extirpations of sensitive salamander species. One group of organisms that often persists in urban streams is the <em>Eurycea bislineata</em> …
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Relationship between Land Use and Surface Water Quality in a Rapidly Developing Watershed in Southeast Louisiana
… (southeastern Louisiana) are experiencing rapid urbanization, particularly in the wake of the 2005 hurricane season. To document the impact of land use on water quality, thirty sites were monitored for surface water physiochemical, geochemical, and bacteriological parameters. Water quality data …
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Animating the Adi Ganga
… holy rivers have turned into polluted drains, Urban streams and channels are being considered as a viable means of interventions. Realizing this, the thesis shows possibilities on how the rehabilitation of a polluted urban cannel can be approached.
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Evaluation of stormwater BMP alternatives in the Malden River Watershed
Stormwater runoff degrades urban streams through a variety of hydrologic and water quality changes. Green infrastructure is one alternative to traditional methods of stormwater management. This report evaluates the feasibility of four green infrastructure Best Management Practices (BMPs) in the …
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Rediscovering the River Bièvre : the feasibility of restoring ecological functions in an urban stream
… numerous towns before disappearing into the urban hydraulic network upon its approach to Paris's dense urban core. Recent plans to restore the stream and uncover its buried sections outside of the core have lead to current plans to reintroduce the stream within Paris proper. Analysis of the …
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Effects of land use on biotic integrity in ridge and valley streams in the Chattanooga Metropolitan Area, Tennessee-Georgia
Twenty-one sites across seven streams in the Chattanooga metropolitan area, Tennessee-Georgia, were studied from April-August, 1999, as part of the Urban Streams Project. All sites are in the Ridge and Valley ecoregion and are part of the Nickajack Reservoir watershed in the Tennessee River system. …
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Quantifying bottomland hardwood forest and agricultural grassland evapotranspiration in floodplain reaches of a mid Missouri stream
… role in floodplain dynamics, particularly along urban streams where flood mitigation is critical to protecting human life and property. Enhanced evapotranspiration (ET) of riparian floodplain forests could help reduce flooding through drying of soils and improved absorption of overland flows. …
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Evaluation of Ecological Function of Urban Riparian and Stream Systems: Guiding Ecological Restoration in Austin, Texas, USA
… best determine ecosystem function of a group of urban streams, leaf-litter decomposition was used as an integrated metric for assessing anthropogenic impacts. I measured leaf-litter decomposition rate with two species, Texas Red Oak (Quercus texana) and American Sycamore (Platanus occidentalis), …
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Artificial Light at Night Alters Physiology, Behavior, and Reproduction in the Western Mosquitofish (Gambusia affinis)
… pollutant that is increasing with the spread of urbanization and may contribute to biodiversity declines. ALAN alters the migration patterns of birds, communication in frogs, and impacts reproduction, behavior, and physiology of multiple other taxa. The effects of ALAN on freshwater organisms, …
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Improving Urban Watershed Health Through Suburban Infill Design and Development
… inward or into more compact, mixed-use suburban developments (Nelson, 2004). If this assertion is even nearly true, and if the goals of the Clean Water Act are to be met in the next generation of American cities, then we must find feasible and effective ways of improving urban watershed …
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Composition and bioavailability of DOC across a rural-urban gradient
… use on the physical and chemical conditions of streams and riparian zones. There is also currently substantial momentum and effort directed at restoring these areas. However, there is a distinct lack of understanding of not only the processes that occur in natural systems, but also the impact …
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