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 15 of 15 for “"river-floodplains"”.
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Human and environmental influences on the distribution and abundance of arapaima in river floodplains of the Lower Amazon
… and abundance of arapaima (Arapaima spp.) in river floodplains of the lower Amazon River, near the municipality of Santarém, Para State, Brazil. In chapter 1, a study of eight environmental variables in 13 dry season floodplain lakes demonstrates that lake depth, relative depth, conductivity, …
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An Economic Analysis of Flood Easements: The Case of the LaGrange Reach of the Illinois River
… modeling approach may be applied to other large river floodplains.
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Floodplain Hydrology and Biogeochemistry
River-floodplain connectivity is defined as the water mediated transfer of materials and energy between a river or stream and its adjacent floodplain. It is generally accepted that restoring and/or enhancing river-floodplain connectivity can reduce the downstream flux of reactive solutes such as …
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Quaternary geology of the Knife River Indian Villages National Historic Site
<p>The archeology of the Knife River Indian Villages National Historic Site is being studied by the University of North Dakota Anthropology Department. The age of the near surface sediment and depositional history of Quaternary sediments are useful to archeologists involved in locating and …
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Toxic Metal Concentration and Distribution in Soils of Four Abandoned Landfill Sites, Springfield, Missouri
… abandoned Springfield landfills are located in river floodplains on soluble limestone bedrock, maximizing the possibility for ground and surface water contamination by leachate. Toxic metals are present in the landfills from the disposal of everyday household items, and the two more recently …
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Hohokam Population Dynamics: Settlement Organization and Migration at the Sabino Canyon Ruin Site, Arizona
… other Hohokam populations living along the major river floodplains.</p>
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Flood pulse influences on exploited fish populations of the Central Amazon
… population dynamics and catches of fishes from river-floodplains. Although different measures of flood pulses, here called flood pulse variables, have been correlated to changes in catches of river-floodplain fishes, the flood pulse variables that have the strongest relationships to catches have …
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Habitat Relationships of Breeding Birds in Bottomland Hardwood Forests of the Altamaha River, Georgia
… forests (bottomlands) dominate most of the river floodplains and lowlands of the southeastern United States. These vanishing and often degraded forests provide habitat for at least seventy species of breeding birds. However, little is known about habitat associations of breeding birds, …
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Modeling the Impact of Flood Pulses on Disease Outbreaks in Large Water Basins with Scarce Data
Large river water basins play a critical role in the economic, health, and biodiversity conditions of a region. In some basins, such as the Zambezi River Basin, extreme weather events introduce cycles of drought and heavy rainfall that can have extreme impacts on local communities vulnerable to …
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Influence of Mycorrhizal Inoculation Treatments on Native Tree and Shrub Survival in a Floodplain, Flathead Indian Reservation
… are difficult to establish on cobbled riparian floodplains, the species and treatments were tested on two Jocko River floodplains. The Powell site was plowed in the spring of 2003 prior to planting, and the Stranahan site remained unplowed but treated with the broad leaf herbicide 2,4-D amine, …
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Influence of Mycorrhizal Inoculation Treatments on Native Tree and Shrub Survival in a Floodplain, Flathead Indian Reservation
… are difficult to establish on cobbled riparian floodplains, the species and treatments were tested on two Jocko River floodplains. The Powell site was plowed in the spring of 2003 prior to planting, and the Stranahan site remained unplowed but treated with the broad leaf herbicide 2,4-D amine, …
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Ecology of the marsh rice rat (Oryzomys palustris) in southern Illinois: wetland dynamics, metapopulations, and trophic position
Wetlands occurring on natural river floodplains typically have more dynamic hydrology, because of influences from the river, than man-made wetlands or those associated with reclaimed minelands. For wetland-associated species, fluctuating water levels can affect patch availability, connectivity and …
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Air-breathing and movement ecology of Arapaima sp. in the Amazon
The annual hydrological cycle of floodplains supports fishes that are uniquely adapted to optimize resources throughout the year. Such adaptations to changing environments include air-breathing for seasonally hypoxic waters and directed movements to best utilize habitats as they become available. …
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Large-scale floodplain sediment dynamics in the Mekong Delta : present state and future prospects
… of its large extent, the intricate system of rivers, channels and floodplains and the scarcity of observations. Thus this thesis aimed at (1) the quantification of suspended sediment dynamics and associated sediment-nutrient deposition in floodplains of the MD, and (2) assessed the impacts of …
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Exploring Overbank Sediment Deposition Variation in Heavily Modified Floodplains of the Lower Mississippi River: A Sedimentological and Geophysical Analysis
<p>Since the 1930s, the Lower Mississippi River (LMR) has experienced large-scale modifications to the channel profile and surrounding floodplains through dams, dikes, revetments, dredging, and channel cutoffs. Although these changes have improved navigation and reduced flood risk, unanticipated …