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 20 for “"Niche Model"”.
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Seasonal and lunar patterns of peach blossom jellyfish (Craspedacusta sowerbii) in Michigan
… mechanisms and to create a regional ecological niche model. Medusae were observed in one lake during the field season, where abundance followed a significant quadratic seasonal curve peaking in mid-September, a thermal optimum near 25 ℃, and marginally nonsignificant increases during moderately …
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Patterns of Taxonomic, Functional, and Phylogenetic Diversity, and Ecological Drivers of Stream Fish Assemblages in East Texas
… Additionally, I created two ecological niche models for a Species of Greatest Conservation Need (SGCN), Spotted Sucker <em>Minytrema melanops</em>, to compare model accuracy and inform conservation efforts of the species in these basins. The results of this study revealed that …
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Established and emerging group build (Baugruppen) development processes
… an established German group building model in an American context, I outline the typical steps in the development process and frequent barriers that Baugruppen (building groups) face. I summarize qualitative data from interviews and virtual information sessions across three case …
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Historical refuges and recolonization routes in the Southern Appalachian Mountains, inferred through phylogeographic analysis of the spotted wintergreen (Chimaphila maculata)
… benefited from incorporation of coalescent modeling to test competing scenarios of population history of a species. Ecological niche modeling has also been useful in inferring areas of likely suitable habitat during past climate conditions. Several studies have examined the population …
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"MODEL COMPLEXITY AND VARIABLE SELECTION IN MAXENT NICHE MODELS: ANALYSES FOR RODENTS IN MADAGASCAR"
<p>Ecological niche models (ENMs) characterize the relationship between localities where a species is known to occur and the abiotic characteristics of these regions. While widely used, ENMs remain subject to several outstanding issues, including those related to model complexity and violation of …
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PARENTAL WARMTH AND PHYSICAL PUNISHMENT AND THEIR ASSOCIATIONS WITH CHILDREN’S SOCIAL AND ACADEMIC SKILLS IN TRINIDAD AND TOBAGO
… styles typologies and the Developmental Niche Model as guides, this study examined the moderating role of parental warmth on the associations between severity and fairness of physical punishment and preschool-aged children’s social and academic skills in families in the twin-island …
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Estimating distribution and detection of Kirtland's Snake (Clonophis kirtlandii) to design effective presence/absence surveys
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Multivariate nichemetrics
… ecological community structure, the multivariate niche model has always been the assumed structural model. This model is closely connected to the multivariate two-sample problem. Important to the understanding of species interactions in a community is the measurement of the degree to which the …
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Investigating the distribution of Nitellopsis obtusa in Ontario Lakes and its role as an ecosystem engineer
… of bloom development, a structural equation model demonstrated that N. obtusa had a direct faciliatory (p-value < 0.05) role in Microcystis spp. blooms. In addition, N. obtusa biomass was a moderately strong negative predictor of near-bed oxygen concentration (R2 = 0.59, p-value < 0.001), …
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Faunal and human biogeography during the Terminal Pleistocene.
… species throughout Europe. Species distribution modelling of current climatic niches provided a new quantifiable framework for defining the ecology of mammals in Europe today to enable the reconstruction of past environments. Based on this framework, this thesis investigated the non- analogue …
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GUAN AND SHAMING AMONG CHINESE FAMILIES IN THE UNITED STATES: THE MODERATING EFFECTS OF PERCEIVED CULTURAL NORMATIVENESS
… acceptance-rejection theory, the developmental niche model, model of acculturation strategies, and the cultural normativeness hypothesis to examine links between shaming and training parenting strategies, and psychological and academic outcomes among children of Chinese immigrants living in the …
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Revised distributional estimates for the recently discovered olinguito (Bassaricyon neblina), using museum and science records
… cloud forests. A preliminary distributional model was published along with the original description, and I here provide revised distributional estimates using updated locality records and more current ENM methods. I build ecological niche models in Maxent using occurrence data (georeferenced …
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The Use of Geographic Information Systems and Ecological Niche Modeling to Map Transmission Risk for Visceral Leishmaniasis in Bahia, Brazil
… and evaluate the applicability of ecological niche models (ENM) for leishmaniasis, to determine the influence of environmental and socioeconomic factors on the incidence of these diseases at three geographic scales: national, statewide and community. Water availability, garbage collection, …
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Attitudes of parents, teachers and adolescents on the cultural practice of physical punishment for behaviour management of Solwezi District
… This was inconsistent with the Developmental Niche Model by Super and Harkness (1986) in which this study was anchored. Drawing from the Model, assumptions would be that positive attitudes towards the practice of physical punishment would endorse its use. Interventions by Government and …
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Attitudes of parents, teachers and adolescents on the cultural practice of physical punishment for behaviour management of Solwezi District
… This was inconsistent with the Developmental Niche Model by Super and Harkness (1986) in which this study was anchored. Drawing from the Model, assumptions would be that positive attitudes towards the practice of physical punishment would endorse its use. Interventions by Government and …
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Using eDNA and Habitat Suitability Modeling to Better Understand the Range and Habitat Requirements of the Eastern Black Rail
… using environmental DNA (eDNA) and an ecological niche model identifying areas and characteristics of suitable habitat for this species. To detect Black Rail eDNA I developed a qPCR assay that targets a 219-bp region of the cytochrome c oxidase subunit 1 gene (COI) and uses a fluorescent reporter …
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Geographic patterns of speciation in West and Central Africa: The role of rivers, mountains, and refugia
… population genomic, demographic and niche modeling analyses to gain a better understanding of the responses of West and Central African taxa to the major climatic and geographic events shaping African rainforest biota. Chapter 1 examines the role that the Pleistocene glaciation cycles …
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Applying new aquatic habitat data to manage invasive and imperiled crayfishes in North America
… to better characterize freshwater habitat in modeling applications. My research applies these new freshwater GIS data layers to species distribution modeling (SDM) with implications for management of both imperiled and invasive freshwater crayfishes. In Chapter 2, I developed SDMs to …
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Lyme Disease and Forest Fragmentation in the Peridomestic Environment
… location of our study. Efforts to geographically model Lyme disease primarily focus on landscape and climatic variables. The disease depends highly on the survival of the tick vector, and white-footed mouse, the primary reservoir. Both depend on the existence of forest-herbaceous edge-habitats, as …
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The overwintering ecology of a cold-adapted and refugia-dependent rattlesnake
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms