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 12 of 12 for “"Disturbance ecology"”.
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Microbiome-centered Approaches to Marine Disturbance Ecology
… to alter our global ecosystem, ecological disturbances will increase in both frequency and intensity. These ecological disturbances have been shown to significantly impact microbial communities, often altering composition and/or function. However, while disturbance events are commonly …
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DISTURBANCE ECOLOGY OF THE SONADORA RIVER ROCK POOL INSECT ASSEMBLAGE AT LUQUILLO EXPERIMENTAL FOREST, PUERTO RICO
… to river bank, canopy openness, and flooding disturbance. It was then hypothesized that the adult insects should be making oviposition choices that maximize offspring survival (preference-performance hypothesis, PPH). It was unclear if PPH was supported for <em>Dasyhelea</em> with respect rock …
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Disturbance ecology and size class structure of the Mulanje cedar of Malawi, Widdringtonia whytei and associated broadleaved forest
The disturbance ecology and regeneration patterns of the emergent conifer, Widdringtonia whytei, and five broadleaved species, Aphloia theiformis, Rapanea melanophloeos, Maesa lanceolata, Maytenus accuminata and Psychotria mahonii, were inferred from population size structures in the mixed …
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Advances in the reconstruction of temperature history, physiology and paleoenvironmental change : evidence from light stable isotope chemistry
… animal migration and physiology, and disturbance ecology (e.g., fire, flooding) benefits from the recovery of proxy information at decadal to subannual resolutions. The type of material used also dictates a spatial scale. Herein are presented four studies that utilize high-resolution …
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Application of disturbance theory to assess impacts associated with a three-dimensional seismic survey in a freshwater marsh in southwest Louisiana
… various practical and theoretical aspects of disturbance in a coastal wetland marsh in southern Louisiana. A literature review approached disturbance ecology from both practical and theoretical perspectives and assessed its applicability to developing broad predictive models. However, specific …
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Since I Know Myself: A Cultural Examination of Medicinal Plant Use in the Commonwealth of Dominica
This research examines Dominican culture through exploring medicinal plant use on the island. Dominica, located in the Lesser Antilles of the Caribbean Archipelago, offers a distinctive setting because historically there has been an amalgamation of cultures that have participated in and influenced …
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Forest Disturbances: Occurrences and Impacts of Recreational, Hydrogeomorphic, and Climatic Disturbances
Disturbances impact abiotic and biotic components within forested ecosystems. This dissertation identifies the impacts of recreational crossing disturbances on water quality, uses dendrochronological techniques to estimate sediment deposition and identify impacts hydrology and climate on radial …
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Establishment, Mortality and Growth of Recruits in an Experimentally Disturbed Piñon-Juniper Woodland
… the process of vegetation recovery from disturbance, we imposed an experimental disturbance regime by girdling all mature juniper or piñon trees at a plot scale with replication (N=3). Together with three undisturbed control plots, I monitored over three years sapling survival and growth, …
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From land to water: the impacts of forest disturbances on carbon cycling in northern catchments
… disturbed by biotic and abiotic events. These disturbances are especially important since they facilitate the redistribution of nutrients within and between ecosystems, which can alter resource use and productivity. Yet how various types of disturbances, both individually and in combination, …
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Spatiotemporal Patterns and Drivers of Surface Water Quality and Landscape Change in a Semi-Arid, Southern African Savanna
… on climate, fire, herbivory, and anthropogenic disturbance. In Chapter 4, I evaluated the utility of Distance sampling methods to: 1) derive seasonal fecal loading estimates in national park and unprotected land; 2) provide a simple, standardized method to estimate riparian fecal loading for use …
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Impacts of flood-mediated disturbance on species of High Nature Value farmland
… are better described as being dependent on disturbance, and that management practices on HNVf mimics the effects of natural disturbance processes such as herbivory, fire, severe weather and flooding, which are often suppressed across much of Europe. If true, one innovative approach for …
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Toward Ecological Holism: Discerning Pattern, Process and Scale Across the Productivity Landscape
… are degraded by pollution, nutrient loading, disturbance, and climate instability, ecosystems are being pushed past critical thresholds resulting in loss of biodiversity and declines in productivity. The internal processes of natural ecosystems are self-correcting, conditioned on the adaptive …