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 5 of 5 for “"variance partitioning"”.
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Influence of Human Recreational Activities and Vegetative Characteristics on Waterbird Abundance
… by the amount of disturbance present, as well as variance partitioning, a test utilizing the Canonical Correspondence Analysis test. With only 2 percent of the explained variation in the occurrence and abundance of waterbirds coming from human disturbance, out of 25 percent explained in total, its …
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Perspectives on the Geomorphic Evolution and Ecology of Modified Channels and Two-Stage Ditches in the Agriculturally-Dominated Midwestern United States
… Canonical Correspondence Analysis (CCA) and variance partitioning to relate environmental variables to fish and macroinvertebrate community attributes. At 32 sites in the first study, we: (1) identify and quantify key environmental variables; and (2) evaluate the influence of those variables …
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Predicting phytoplankton community dynamics: understanding water quality responses to global change
A fundamental focus in ecology is understanding interactions between environmental heterogeneity and ecological community structure, both of which are currently undergoing unprecedented alterations due to global change. In particular, many freshwater phytoplankton communities are experiencing …
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Multi-scale analysis of carbon stocks and process indicators in the agro-ecosystem of Canterbury, New Zealand
Increasing interest in characterising carbon dynamics in the agricultural landscape has been driven by the clear need for greenhouse gas mitigation strategies in response to global climate change. However, little quantitative information is available about carbon stocks and processes in …
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Below- and aboveground farmland biodiversity in relation to local and regional management
Die Ausdehnung von Ackerland, Plantagen und Weideland in den letzten Jahrzehnten sowie die Intensivierung der Landwirtschaft auf lokaler und regionaler Ebene sind Hauptgründe für den Biodiversitätsverlust. Intensivierung auf lokaler Ebene ist durch einen vermehrten Einsatz von Maschinen, Spritz- …