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 20 of 23 for “"ecological succession"”.
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Ecological succession on abandoned farmland and its relationship to wildlife production in Cumberland County, Virginia
… available on the relationship of these plant successional changes on the associated animal populations. Whereas the effect of plant succession on the animal population of a habitat is not susceptible to exact measurements, this effect probably may be measured in relative terms. In Virginia …
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Natural regeneration and ecological succession in Pinus kesiya watershed plantations in northern Thailand : implications on plantation management
Establishment of Pinus kesiya Roy. ex Gord. plantations in Thailand began in the 1960s by the Royal Forest Department. The aim was to reforest abandoned swidden areas and grasslands in order to reduce erosion and to produce timber and fuel wood. Today there are about 150, 000 ha of P. kesiya …
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The Application of Macro- and Microfossils to Identify Paleoearthquakes in Sumatra, Indonesia and to Characterize Geomorphic and Ecological Succession on a Marsh Platform After Hurricane Isabel in North Carolina, USA
… changes in the elevation, geomorphology, and the ecological evolution of the overwash deposit. The results indicated that marsh foraminifera and plants did not recolonize until the surface of the overwash deposit was eroded to an elevation within the intertidal zone. Once this elevation was …
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Diatom Community Composition Shifts Driven by Coherent Cyclonic Mesoscale Eddies in the California Current System
… the resident phytoplankton population undergo ecological succession as the eddy ages. Diatoms, a unicellular and eukaryotic subgroup of phytoplankton, have high sensitivities to changes in their environment, particularly temperature and nutrient distributions. In this study, I examine how …
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Neighborhood change in metropolitan America
… patterns in both central city and suburban ecological succession and transformation. These geographical shifts of neighborhoods were shown to be associated with changes in job accessibility to a certain extent. In sum, by introducing an integrated framework including social, spatial, and …
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Effects of Climate and Ecological Processes on Engineered Uranium Disposal Cell Performance with Respect to Nearby Subsistence-Based Indigenous Communities
… 20 to 30 years post-construction, vegetative succession, dust deposition, and soil development are changing the as-built engineering design, clearly notwithstanding the longevity standard of 200-1,000 years. Little is known about how natural ecological succession will impact the performance of …
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The Wandering Mussels: Analyzing the Ecological Impact of Dreissenid Mollusks Across Spatial and Temporal Scales in Eastern Ontario Using Environmental DNA
… To address this, I propose the Alien Succession Hypothesis (ASH), a novel theoretical framework conceptualizing biological invasions as a form of ecological succession arrested by continued ecosystem disturbance, and the dynamics of invasive species interactions as phase and density …
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Human recreational activity and its impact on a metropolitan coastline
… tube-worm reef in the process, thereby affecting ecological succession processes in the intertidal environment. Management of metropolitan shorelines must therefore provide for quality recreational experiences, while applying conservation measures to selected areas that are susceptible to …
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Establishment of permanent plots and analysis of woody vegetation in the Tennessee River Gorge, Marion and Hamilton Counties, Tennessee
… change within the communities of the TRG due to ecological succession or climate change.
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Linking nitrogen biogeochemistry to different stages of wetland soil development in the Mississippi River Delta, Louisiana
… emergent landscapes, in the early stages of ecological succession, and older landscape formations, with fully developed ecological communities. Here I tested how the anthropogenic effects of a climate-induced vegetation shift, an oil spill, and nitrate-enrichment regulate the principal …
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Spatial structure and dynamics of the plant communities in a pro-grading river delta : Wax Lake Delta, Atchafalaya Bay, Louisiana
… riverine and tidal flushing, soil development, ecological succession, and exposure. This full model explained 65 percent of the spatial variability, compared to 54 percent explained by elevation alone, indicating that elevation is the most important driver of species distributions in this …
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Abiotic and Biotic Factors Shaping Plant-Microbe Interactions
… Given that the biotic and abiotic contexts of ecological communities is rapidly shifting due to anthropogenic change, understanding the factors that shape plant-microbe interactions will allow us to make more accurate predictions of ecological interactions both presently and in the future. …
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Salvage cartographies : mapping, futures, and landscapes in northwest British Columbia
… are learning to leverage marginalized maps and ecological succession models to reconstitute modes of professional succession rendered precarious by government reforms and internal tribal conflicts. The opening chapters of the dissertation examine two experimental institutions - an independent …
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Trait-based approaches to marine microbial ecology
… and field-based data. A spring-to-summer ecological succession from larger to smaller cell sizes and from photoautotrophic to mixotrophic and ieterotrophic phytoplankton was apparent. No relationship between maximum net growth rate and cell size or taxonomy was found, suggesting that …
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Factors affecting piping plover (Charadrius melodus) nest site selection following landscape and predator community changes
… New York, assessing changes in vegetation succession, plover nesting habitat selection, and suitable nesting habitat availability from 2010 until eight years after Hurricane Sandy. We analyzed classified imagery to quantify vegetative cover changes across the landscape and at nest sites. …
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Ecology of benthic macroinvertebrates in experimental ponds
… insects in the orders Ephemeroptera and Odonata, successional patterns over 2 years of pond development, and precision of 15 biological metrics in a series of 6 replicate experimental ponds from March 1989 to April 1990. I determined voltinism, emergence patterns, larval growth rates and annual …
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An evaluation of some rabbit management procedures as applied in southeastern Virginia
… and mowing and burning as a means of retarding ecological succession. Results of these evaluations indicated that the annual mixture plot is the type most heavily utilized by rabbits during the fall. Next in importance was the clover-winter grain combination planting. These conclusions were …
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The macrobenthos of a new reservoir, Lake Anna, Louisa County, Virginia
… about by impoundment, and then to observe the successional changes which occurred in the following years. This information was then compared to a hypothetical model predicting the productivity of new reservoirs. It was discovered that traditional grab sampling was not reliable in new reservoirs …
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Unravelling abiotic and biotic drivers of biodiversity change in local plant and invertebrate communities after 80 years - a re-visitation study on the Studland peninsula.
How ecological communities respond to long-term environmental change via changes in species richness and composition is an urgent question in the 21st century as anthropogenic forces drive biodiversity declines across taxa and regions. As environmental conditions change over time, effects may …
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