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.
Results
Showing 1 to 7 of 7 for “"biotic responses"”.
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Palaeoclimatology, stratigraphy and biotic responses in the middle Eocene
… Optimum (MECO) between ~39.5 and 41.5 Ma. New biotic records show that the MECO was accompanied by significant biotic shifts that suggest a shift from warm, oligotrophic surface waters to warmer, more productive surface waters during the MECO.
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Biotic Responses on Typha-monodominant Semipermanent Wetlands To Cattle Grazing
… grazing treatment was sufficient to alter the biotic state of emergent march compared to the un-grazed plots. Live and dead cattail stems decreased, residual litter depth and aerial coverage decreased, water and substrate temperatures increased, aerial coverage of thallophytes increased, …
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Biotic and abiotic responses to rural development and legacy agriculture by southern Appalachain streams
… of applying large scale analyses of stream reach responses, and linking the activity of humans in the landscape to stream structure and function. I investigate whether rural development and agriculture land-cover types influence abiotic and biotic stream responses. I establish a method for …
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A late quaternary history of Agulhas-Benguela interactions from two sediment cores on the western continental slope of South Africa
… models were created. The results indicate that biotic responses to surface hydrological changes in the study area are complex and involve both high- and low-frequency variations.
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The role of forest stream corridor characteristics in influencing stream and riparian ecology
… I explore a number of different trophic scale responses to riparian conditions in order to define the biotic responses to variation of resource availability, with the aim of contributing information which may aid in design and management of afforested riparian zones.
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On the development of flow-ecology relationships for streams in coastal watersheds of southern California
Linking hydrologic alteration to the biotic responses of streams is essential for understanding and managing the effects of land use changes and other human influences on aquatic ecosystems. This study develops flow-ecology relationships for wadeable streams in coastal watersheds of southern …
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Using an interdisciplinary approach to improve efficacy of agricultural conservation practices for protecting stream health
… on water quality and habitat still limited the biotic assemblage. Therefore, innovative conservation practices, higher densities of existing practices, or allowing more time for the effects of existing practices to improve water quality and habitat may be required to achieve stream health goals. …