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 13 of 13 for “"perennial stream"”.
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Non-perennial streamflow & geomorphic patterns in a semi-arid rangeland slated for development
Urbanization has widely recognizable impacts on stream morphology and flow patterns. Predicting and quantifying these impacts can be difficult, especially for non-perennial streams in semi-arid rangelands. Non-perennial streams tend to lack a historical baseline with complete records of streamflow …
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The ecological role of beavers (Castor canadensis) in a Southwestern desert stream
The ecological impact of beavers on a stream in the southwestern United States was investigated to determine if beavers have impact on community and ecosystem level processes in a manner similar to what has been documented in more mesic regions. Specifically, my goals were to determine: (1) whether …
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Assessing Organic Matter Breakdown and Associated Macroinvertebrate Community Structure in Headwater Streams: Effects of Hydrologic Gradients and Upland Timber Harvesting
… and upland timber harvesting with different streamside management zone widths on yellow-poplar (<i>Liriodendron tulipifera</i>) processing and the associated macroinvertebrate community structure in the Cumberland Plateau ecophysic region, U.S.A. Prior to upland timber harvesting, 5.0 ± 0.1 g …
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A macroinvertebrate bioassessment of two streams on Turnbull National Wildlife Refuge (TNWR)
<p>This project focused on highly impacted streams at Turnbull National Wildlife Refuge, Cheney, WA to evaluate the health status and ecosystem integrity of the water bodies. Turnbull National Wildlife Refuge contains over 3,000 acres of wetlands, and provides high quality habitat for migrating and …
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Base Flow Recession Analysis for Streamflow and Spring Flow
… The base flow recession analysis for both streamflow and spring flow has been extensively studied in the literature. Studies have shown that the recession behaviors during the early stage and the late stage are different in many watersheds. However, research on the transition from early …
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Necropolis: burial & afterlives in Cape Town
… the edge of the City Bowl, through which runs a perennial stream linked to the city's historical centre. The Park has a varied heritage landscape which the design situates itself beside, together constituting a landscape of remembrance. The programme explores a secular spiritual and sacred …
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Biodiversity and Phenology of the Epibenthic Macroinvertebrate Fauna in a First Order Mississippi Stream
… aquatic insects of Granny Creek, a first-order perennial stream in southern Mississippi, on twelve sampling dates from March 2014 to June 2015. The dominant insect/invertebrate group in Granny Creek was the dipteran family Chironomidae. Forty-two distinct taxa of chironomid larvae were collected …
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Streamside Management Zone effectiveness for protecting water quality following forestland application of biosolids
… to increase nutrient availability. Retaining streamside management zones (SMZs) can limit nutrient pollution of streams. We delineated 15 m SMZs along three intermittent streams in an 18-year-old Pinus taeda L. plantation. We applied biosolids outside the SMZ on one side of each of the streams …
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Assessment of Watershed Condition and Vulnerability to Forecasted Land-Use/Land-Cover Change in the Northwestern Great Plains of Western South Dakota
… data to determine the condition of wadeable, perennial stream watersheds in the Northwestern Great Plains level III ecoregion of western South Dakota (n=1,025). We incorporated forecasted LULC data from the FOREcasting SCEnarios of Land-Use Change (FORE-SCE) model following four scenarios of …
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Hydrologic Response of Alternative Valley Fill Reclamation Designs
… detention ponds provides the potential to allow stream flow in excess of ephemeral conditions. However, the ponds need to be properly sized to allow greater runoff storage if intermittent or perennial stream flow is desired. The effectiveness of the retrofit reclamation design was difficult to …
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The spatiotemporal dynamics of bacterial and fungal abundance in Great Plains non-perennial streams
Non-perennial streams comprise approximately 50% of global stream length and 59% across the continental U.S. Non-perennial streams are also predicted to become more common, since increased length and time of drying in rivers and streams is a widespread symptom of climate change. These substantial …
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The partitioning and mobility of metals in the Blesbokspruit
… 1930, the Blesbokspruit was altered from a non-perennial to a perennial stream and a wetland due to the construction of roads and embankments as well as the discharge of mine effluent. Various studies have highlighted the detrimental impact South African gold mines and their slimes dams have on …
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Wood Duck Brood Movements, Habitat Use, and Survival Rates on Two Prairie Rivers in South Dakota
… in South Dakota. The Big Sioux River is a lower perennial stream bordered by a narrow wooded corridor and a fairly wide floodplain. The surrounding area has a well integrated drainage system. The Maple River Supports cattail and bulrush along its margins due to the semipermanent water regime. The …