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 16 of 16 for “"Ecological Modelling"”.
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Monotonicity aspects of linguistic fuzzy models
… sets linguistic fuzzy m models apart from other modelling techniques and is considered their greatest asset. Therefore, in the identification process of a linguistic fuzzy model, the interpretability of the model should be safeguarded or at least be balanced against its accuracy. A good trade-off …
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Social Deprivation, Political Alienation and Community Empowerment. The geography of voter turnout in Ireland,1997-2002, and its Association with Social Deprivation.
… detailed data for small geographical areas. The ecological modelling of turnout variance is upheld by the use of individual level analyses (through the use of questionnaires and interviews). Strong associations between turnout and social well-being for urban areas were uncovered in the Dublin …
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Modelling the impact of Phytophthora austrocedri on UK populations of native juniper (Juniperus communis s. l.)
… in novel settings. This thesis uses multi-scale ecological modelling to understand environmental and land management factors driving patterns in infection and impact of the newly discovered oomycete pathogen, Phytophthora austrocedri, on juniper (Juniperus communis). I first surveyed potential …
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Hunting and herding in a semi-arid region : an archaeozoological and ethological analysis of the faunal remains from the Epipalaeolithic and Neolithic of the eastern Jordanian steppe.
… is investigated. This is approached through ecological modelling and it is concluded that no strong selective biasses are observed. The nature of gazelle hunting is then further explored; the age profiles and sex ratios of the animal culls are compared to the model of gazelle social …
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Aquatic Community Interaction Diversity and Mosquito Larvae
Mosquitoes comprise a diverse group of small flies (Diptera) in the familyCulicidae which includes an estimated 3,600 described species. Colloquially we knowmosquitoes as biting insects that pose a threat to humans and domestic animals asimportant vectors of disease. Although a minority of the …
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Response to environmental change by bacterial communities in stream biofilms
Stream biofilms play an important ecological role in the supply of energy and organic matter to aquatic food webs. Bacterial community composition in stream biofilms is shaped by biotic interactions as well as physicochemical conditions which vary across space and time. It is, therefore, crucial to …
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Plant-habitat interactions in brackish marshes
… studies and statistical as well as process-based modelling. To explore the possibility of vegetation serving as self-adaptive coastal protection, in the first study, we measured current velocity with and without living vegetation, recorded ramet density and plant thickness during two growing …
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Protecting the deep: The combined impact of climate change and bottom trawling on VME indicator taxa in New Zealand and implications for management
… may undermine the ability of taxa to form ecologically functional habitats in the future if these impacts persist. The interplay between climate change and bottom trawling presents a complex multi-stressor scenario for VMEs and their indicator taxa. Addressing these cumulative impacts …
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The Past, Present, and Future of Large Reptiles: Rewilding, Climate Change, and Conservation Palaeobiology
… by returning locally extinct species or their ecological analogues to an environment. Rewilding also has the potential to limit the impact of future climate change on species and ecosystems by introducing or reintroducing species to areas that will be climatologically suitable in the future. …
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Spatial models of plant diversity and plant functional traits : towards a better understanding of plant community dynamics in fragmented landscapes
… loss of biodiversity. In face of this threat, ecological research needs to provide predictions of communities' responses to fragmentation as a prerequisite for the effective mitigation of further biodiversity loss. However, predictions of communities' responses to fragmentation require a …
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Parasites in freshwater mussels: community ecology and conservation
… the importance of considering interplay among ecological scales when characterising patterns in community ecology. Chapter 7 quantifies the effect of parasitic trematodes, mites and invasive zebra mussels (Dreissena polymorpha) on the reproductive capacity of A. anatina. Rather than just focus …
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Climate change, variable colony sizes and temporal autocorrelation : consequences of living in changing environments
… in relation to climate, and a "population modelling approach" which is based on correlations between demographic parameters and the inter-annual variation of climate. In this case study, I compared the two approaches for predicting the effect of a shift in mean precipitation on a population …
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The development of a spatial explicit agent-based modelling framework to explore past vegetation dynamics
… of a spatially explicit agent-based modelling suite integrating individual tree dynamics and human interaction from prehistory. Adopting approaches used for contemporary woodlands, primarily forest succession models, these are applied to prehistoric landscapes with change determined …
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Four essays on statistical modelling of environmental data
… series, and regression analytical approaches for modelling spatio-temporal processes, using air quality data in the applications. The work is structured into four essays the abstracts of which are given in the following. The first essay is titled 'Spatial detrending revisited: Modelling local …
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Sediment-Pore Water Chemistry of Taupo Volcanic Zone Lakes and the Effect Trophic State has on Exchange with the Water Column
… sediment diagenetic processes coupled with ecological modelling should enable remediation strategies to be better targeted. The rapid depletion in silicon in some TVZ lakes suggests there is potential for the use of reactive silicon as a remediation method. δ15N [N2] extracted from the BNL …