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 11 of 11 for “"stream fish communities"”.
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How climate change and agriculture could reshape the midwestern stream fish communities
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Fish Community Assembly At Multiple Spatial Scales In East Texas Streams
<p>Stream communities are structured by environmental processes that vary in strength across different spatiotemporal scales. Therefore, revealing how stream fish communities are influenced by environmental gradients may clarify how communities respond to disturbance associated with anthropogenic …
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Evolutionary and Ecological Patterns of Body Size in North American Freshwater Fishes
… about the ecology of North American freshwater fishes, few studies have incorporated phylogenetic information into analyses of ecological and biogeographic data. Consequently, little attention has been given to the relationship between evolutionary trends, and regional and local community …
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Relative Roles of Environmental Conditions and Riverscape Connectivity On Fish Metacommunity Structure
… conservation management and restoration of fish communities in dendritic river networks. This study investigates the relative roles of abiotic conditions and spatial factors in structuring stream fish communities and aims to enhance scientific understanding of these structuring factors by …
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High-Resolution Mapping of Fish Conservation Priorities within the Mobile River Basin
… areas is increasingly important as freshwater fishes and associated aquatic organisms are under increasing peril. Human population, growth and subsequent landscape alteration, is degrading water quality and changing the physical characteristics of streams, potentially threatening aquatic …
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Applying ecological models to positive interactions among lotic fishes: implications for population and community regulation at multiple spatial scales
… positive interactions is particularly evident in stream ecosystems and in vertebrate communities. Stream fishes clearly provide an ideal system for advancing research on positive interactions. Many minnows (Cyprinidae) of eastern North America engage in a potentially mutualistic reproductive …
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Parasitism, Predation Prediction: Modelling Variations in Ecological Interactions from Mechanisms to Networks
… as influencing the biodiversity and stability of communities. Intraspecific and environmental variations are often present in ecological interactions and are typically observable within the processes that regulate the existence and strength of these interactions as well as in the topology of …
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Fish and Habitat Relations at Multiple Spatial Scales in Cheyenne River Basin, South Dakota
Fish distributions and habitat relations have not been extensively studied in streams of Northern Great Plains. I analyzed fish distributions and investigated relations of reach (e.g. channel shape, substrate) and landscape scale (e.g. catchment area) factors to small stream fish communities, in …
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The Role of Physiography in the Relationships Between Land Cover and Stream Fish Assemblages
… land use has been linked to the degradation of streams and stream biota. Natural physical and climatic characteristics, or physiographic template, are important for determining natural land cover and constraining human land use, and are strongly related to stream habitat and stream biotic …
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A mechanistic framework for understanding prairie stream fish distributions
… and along environmental gradients. I found that communities are assembled via abiotic environmental filtering, but the strength of this filtering depends on the spatial scale of investigation, longitudinal network position, and type of functional strategy. Second, I quantified …
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Patterns of Taxonomic, Functional, and Phylogenetic Diversity, and Ecological Drivers of Stream Fish Assemblages in East Texas
… supporting some of the greatest freshwater fish diversity in the state. Given the heterogeneity of habitats and species diversity, these rivers serve as excellent natural systems for examining the ecological processes shaping biodiversity patterns and species distributions. In 2023-2024, 60 …