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 218 for “"spatially explicit"”.
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Habitat linkages and highway mitigation using spatially-explicit GIS-based models
I identified suitable locations for highway wildlife crossing mitigations across the TransCanada Highway (TCH) in the area of Mount Revelstoke and Glacier National Park (MRGNP), British Columbia. Highways fragment natural landscapes leading to habitat loss, reduced ecosystem connectivity and direct …
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A Dynamic Model of Land Use Change With Spatially Explicit Data
In this study, we use a discrete choice dynamic model of land-use where the agent's choices are regarded as the solution to a dynamic optimization problem. The first result of using of a dynamic framework is that the assumption of observing the system at a stationary state, one that characterizes …
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Spatially explicit humid heat stress projections in urban environments under climate change
… global patterns of urban humid heat stress and spatially explicit synergies/tradeoffs for adaptation to humid heat. I analyze urban wet-bulb temperatures under future climate change to reveal patterns and drivers of urban humid heat, utilize a spatially explicit population projection to assess …
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Simulation-Based Spatially Explicit Close-Kin Mark-Recapture for Genetic Monitoring of Wildlife Populations
… concern. In my dissertation, I develop a novel spatially explicit CKMR method that models limited dispersal, spatial bias in sampling, complex social structure, and uncertainty in kin estimation. I test the method on simulations and demonstrate that it is accurate and robust to misspecified …
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Spatially explicit null models in biogeography: Toward a multi-scale understanding of the niche.
In general, most ecologists envision the "niche" as a central organizing tenet, and that particular parameters of the niche help structure biogeographic patterns of diversity, distribution and abundance. The major emergent alternative to the niche concept requires the inference of background …
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Succession of semi-natural grasslands : spatially-explicit, mechanistic simulation considering various forms of land use
… grows, disperses seeds, and ages in a spatially-explicit environment. As factors determining wood encroachment, inhibition by the grasslayer, interference of wild boar (Sus scrofa) and of ungulate browsers is considered. The plants are embedded in a landscape that is simulated as a …
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AnoSpEx: a spatially explicit predictive computational model for studying Anopheles metapopulation dynamics towards malaria control
… We have developed a C++ based, stochastic spatially explicit model (ANOSPEX; Ano phelesSpatially-Explicit) to simulate Anopheles metapopulation dynamics. The model is biologically rich, parameterized by field data, and driven by field-collected weather data from Macha, Zambia. To …
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Conservation by simulation: an individual-based spatially explicit model to simulate population dynamics in fragmented habitat
… simulator based on individual behaviour, with a spatially explicit representation of a landscape. To investigate the robustness of the technique, representatives of three major taxa were modelled: the nuthatch (Sitta europaea L.), the white-footed mouse (Peromyscus leucopus Rafinesque) and the …
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Investigating mechanisms maintaining plant species diversity in fire prone Mediterranean-type vegetation using spatially-explicit simulation models
… by modelling. The model I developed is spatially-explicit, stochastic, rule- and individual-based. It is parameterised on data of population dynamics collected over 18 years in the Mediterranean-type shrublands of Eneabba, Western Australia. From 156 woody species of the area seven plant …
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Estimating spotted hyaena (Crocuta crocuta) population density using camera trap data in a spatially-explicit capture-recapture framework
… can be used to provide density estimates. Spatially-explicit capture-recapture (SECR) models have recently been developed, and are currently considered the most robust method for analysing capture-recapture data. Camera trap data sourced from a leopard survey performed in uMkhuze Game …
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Development and application of a spatially-explicit nitrogen mass-balance model for the Wood River Valley Watershed, Idaho
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.
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Spatially-Explicit Agent-Based Modeling of Ecosystem Change and Epizootiological Impacts on Caribbean Spiny Lobster, <i>Panulirus argus</i>
<p>Agent-based models explicitly incorporate interactions and variation at the individual level, just as in the real world. As a result, agent-based models are realistic, intuitive, and generally less complex mathematically than their analytical counterparts. Their primary disadvantage is the large …
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The effect of random and spatially explicit lightning and human-caused ignitions on simulated burn probabilities at small scales
… simulation models using random ignitions versus spatially explicit ignitions for wildland urban interface (WUI) areas and designated wilderness in the Rocky Mountain West, and infer whether one may be more useful than the other at small scales. We collected all available ignition data from …
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The effect of random and spatially explicit lightning and human-caused ignitions on simulated burn probabilities at small scales
… simulation models using random ignitions versus spatially explicit ignitions for wildland urban interface (WUI) areas and designated wilderness in the Rocky Mountain West, and infer whether one may be more useful than the other at small scales. We collected all available ignition data from …
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