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 253 for “"Distribution Patterns"”.
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Avian Distribution Patterns and Conservation in Amazonia
In this dissertation, I address the distribution and conservation of the Amazonian avifauna at several different scales. In Chapter 1, I looked at how the spatial bias in ornithological collections affects our understanding of the patterns of diversity in Amazonia. I showed that Amazonia is …
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Remote Sensing and Spatial Distribution Patterns of Guyanese Resource Palms
… used to answer critical questions concerning the distribution and environmental drivers of their growth, and the impacts anthropological disturbance by way of localized agriculture has on the regenerative abundance and diversity of Arecaceae.
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Distribution Patterns and Taxonomy of Freshwater Ascomycetes Along the Florida Peninsula
… that pH might also be an important factor in the distribution patterns of freshwater ascomycetes in Florida. Results from the ordination analysis indicated that community composition is not significantly different between lentic and lotic habitats. One hundred species of freshwater ascomycetes …
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Distribution patterns of riparian plant species across river of Sardinia and Tuscany
… on the analysis of floristic differences, on distributional trends of functional and ecological groups, alien and endemic species, and also on the application of landscape classifications to be used as surrogate in conservation planning. The main goal is to evaluate similarities and …
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Distribution patterns of fish during the planktonic period of their life history
The static and dynamic distribution patterns of ichthyoplankton were investigated over a 4 year period (1981 - 1985) off the coast of Leigh, on the northeastern coast of New Zealand. Emphasis was given to horizontal and vertical distributions, and these were described on scales encompassing broad …
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Effects of the late Permian mass extinction on chondrichthyan palaeobiodiversity and distribution patterns
… and followed by additional disturbances. Patterns and processes of extinction and recovery of marine vertebrates have been little studied compared to marine invertebrates. This project focuses on Chondrichthyes, which, together with other marine fish, appeared to have been relatively …
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Investigations into the model driven design of distribution patterns for web service compositions
… performance There are a number of drstribution patterns that each exhibit different non-functional charactmstics These patterns are re-occuring distribution schemes that express how a system is to be assembled and subsequently deployed. Traditional approaches to development of Web service …
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Macrohabitat factors affecting distribution patterns of freshwater mussels in the Clinch River (Virginia, Tennessee)
… in the channel cross-section. Site location patterns for the entire TVA data set (n = 141 sites) were examined for patterns relative to streamflow direction. The greatest frequency of high quality unbraided sites occurred where the river flows in the direction of geologic dip. High quality …
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Temperature impact on reproduction and development of congener marine copepods: a key to distribution patterns?
… in their geographical and/or seasonal distribution patterns, were investigated particularly with regard to temperature effects on population dynamics and distribution. In the field, reproduction was determined at two stations in the North Sea and the Mediterranean over several years. In …
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Biodiversity, distribution patterns and trophic position of meiobenthos associated with reduced environments at continental margins
… 1993). Because marine nematodes have a worldwide distribution, are the most prominent members of the smaller-sized animals and have a direct link with the sediment and with the processes that occur immediately above the sediment, this group can function as an interesting tool to describe habitat …
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The relative importance of natural and human-induced environmental conditions for species richness distribution patterns in South Africa
I studied the spatial distribution of South African avian species richness from the viewpoint that humans are a substantial modifying force on earth, and have also modified the historical spatial distribution of species richness. The main aim of the thesis is to investigate the way in which humans …
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Taxonomy, Diversity, and Distribution Patterns of Portunid Crab Megalopae in the Northern Gulf of Mexico During Fall of 2003
… scaling (NMDS) depicted geographic distributions and community structure during the study period. Mapping of NMDS coordinates illustrated distribution patterns for four community types of portunid megalopae as mainly distinguished by the differences in relative abundances of the most …
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Comparing the coarse- and high-resolution horizontal and vertical egg distribution patterns of three clupeiform species in the southern Benguela ecosystem
… ecosystem. To date, data on high-resolution distributions in ichthyoplankton in the region is lacking. To address this need, coarse and high-resolution ichthyoplankton data were collected using a California vertical egg tow (CalVET) net and a continuous, underway fish egg sampler (CUFES) for …
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An alternative hypothesis for explaining anomalies in the fine scale distribution patterns of Colophospermum mopane : Are shrub and tree forms genetically distinct ?
… do not adequately explain the fine scale distribution patterns of shrub and tree Colophospermum mopane (Caesalpinioideae). Genetic distinctiveness between growth forms is investigated as an alternative hypothesis. Tree and shrub C. mopane from the riparian and inland savanna zones were …
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Ecological Stoichiometry: What Role Does it Play in the Competition and Spatial Distribution Patterns of <i>Aedes Albopictus</i> and <i>Aedes Aegypti</i>?
… heterogeneity and its effect on coexistence patterns between <em>Aedes albopictus</em> and <em>Aedes aegypti</em>. Vases were found to contain a wide array of detrital environments, but I did not find support to suggest that it affects mosquito coexistence patterns. Under a laboratory …
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Production, distribution and consumption of hardwood lumber in the southern Appalachian region
A study was undertaken to describe the patterns of hardwood lumber production, distribution, and consumption in the Southeast. Current distribution patterns were compared with theoretically optimal patterns in an attempt to estimate the efficiency of the current distribution system. A combination …
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