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 21 for “"mosquito abundance"”.
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Modeling Habitat and Environmental Factors Affecting Mosquito Abundance in Chesapeake, Virginia
… in this dissertation were designed to enable mosquito control agencies in the mid-Atlantic region that oversee large jurisdictions to rapidly track the spatial and temporal distributions of mosquito species, especially those species known to be vectors of eastern equine encephalitis and West …
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Statistical Modelling of Mosquito Abundance and West Nile Virus Risk with Weather Conditions
Weather affects the abundance of mosquito vectors of mosquito-borne infectious diseases such as West Nile virus (WNv). Study and prediction of these effects could be used to develop disease forecasting methods. In this dissertation, we analyzed the frequency distribution of mosquito surveillance …
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Improved estimates of risk of exposure to pathogens transmitted by mosquitoes
The exposure of humans to mosquitoes that carry infectious pathogens is a central component to assess the risk of people becoming infected with the pathogen and succumbing to a range of illness. Mosquito-borne illnesses are increasing, but the understanding of the effect of exposure to mosquitoes …
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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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Linking Environmental Factors To Vector Abundance And Malaria Incidence: A Multi-Model Investigation Of Disease Ecology.
… the first national-scale analyses of Anopheles mosquito abundance in Mozambique, integrating five years of entomological surveillance with satellite-derived environmental data. Results demonstrated distinct spatial and temporal heterogeneity in mosquito captures, characterized by frequent zero …
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Bionomics of Ochlerotatus triseriatus Say (Diptera: Culicidae) and Aedes albopictus Skuse (Diptera: Culicidae) in emerging La Crosse virus foci in Virginia
… Crosse encephalitis (LACE), an illness caused by mosquito-borne La Crosse (LAC) virus, has increased in southwestern Virginia, resulting in a need for better understanding of the virus cycle and the biology of its vectors in the region. This project examined the spatial and temporal distributions …
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Modeling Culex tarsalis Coquillett abundance on the northern Colorado Front Range using a landscape-level approach
… (GIS) data include the identification of larval mosquito habitats and forecasting of species distribution and abundance, thereby improving the ability to target control efforts to reduce the risk of transmission of vector-borne pathogens. The practicality for the incorporation of remotely sensed …
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The Use of Remote Sensing for Mapping Possible Vectors of West Nile Virus in Mississippi
… been hypothesized that vectors, such as local mosquito abundance, could be predicted from factors such as climate and land use/land cover. Remote sensing has been used as a supplement to traditional methods of mosquito surveillance and to map the spatial distribution of mosquito habitats. This, …
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Effects of leaf litter diversity on nutrients and mosquito communities in Neotropical artificial tree holes
… quantified macroinvertbrate species richness and abundances, leaf litter mass loss, and dissolved carbon to nitrogen ratios (C:N) after 4 weeks. We found that litter types differed in breakdown and C:N. Tectona grandis had lower dissolved C:N than both native species and supported the fewest …
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Comparing mosquito communities of various patch-matrix landscape combinations in central Missouri, with implications for developing models to forecast abundances of important mosquito taxa
… matrices. Thus, coupling biological sampling for mosquito vectors of disease with certain environmental conditions within different landscape configurations may help approximate a model for predicting the risk of encountering these disease vectors. Therefore, the goals of the research were to 1) …
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Effects of bacillus thuringiensis var.Israelensis and Bacillus Sphaericus larvicides,on mosquitoe Abundance, Diversity and Distribution in Selected Areas of lusaka urban district,Zambia
… and Bacillus sphaericus (Bs) biolarvicides, on mosquito abundance, diversity and distribution in selected areas of Lusaka urban district, Zambia, were investigated. Four study areas including parts of the dam/stream systems of the Kalikiliki/Ibex hills area; Venta/Manzi valley area; …
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Effects of bacillus thuringiensis var.Israelensis and Bacillus Sphaericus larvicides,on mosquitoe Abundance, Diversity and Distribution in Selected Areas of lusaka urban district,Zambia
… and Bacillus sphaericus (Bs) biolarvicides, on mosquito abundance, diversity and distribution in selected areas of Lusaka urban district, Zambia, were investigated. Four study areas including parts of the dam/stream systems of the Kalikiliki/Ibex hills area; Venta/Manzi valley area; …
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Influence of neighborhood structure and weather conditions on density of vectors and risk for West Nile Virus in Cook County Illinois
… pathogen in the region, with consistently high mosquito infection rates and persistent cases of human and veterinary illness. As in most vector-borne systems, one focus of current WNV research is studying the biology of the mosquito vector. Areas with high vector densities are likely to have …
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The hydrology of malaria : field observations and mechanistic modeling of the malaria transmission response to environmental climatic variability
… semi-arid, desert fringe environments where the mosquito Anopheles gambiae s.l. is the dominant malaria vector. This includes much of the most malarious parts of Africa such as the Sahel. The model is validated with several years of field data collected from Banizoumbou village in southwestern …
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Mosquitoes, West Nile Virus, Attractants, Competition, Environmental Conditions, and Insecticide Resistance
… were: 1) test for levels of West Nile Virus in mosquitoes collected at a Fulton County Recreational Facility, 2) assay various mosquito oviposition attractants on West Nile virus positive female mosquitoes, 3) test effects of distance between mosquito infusion attractants, 4) determine effects …
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Health risk differentials: implications of neighborhood conditions on various health outcomes in New Orleans, 2004-2009
… due to a punctuated increase in the relative abundance of mosquito breeding sites. Based upon the Broken Windows theory, spatial variables describing physical and socioeconomic neighborhood characteristics hypothesized to influence the density of unattended pools in the study area were …
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Mosquito Species Abundance, Diversity and Arbovirus Prevalence across Different Land-use in The Gambia
Mosquito-borne arboviruses represent an escalating public health threat across sub-Saharan Africa, yet surveillance remains limited in many countries, including The Gambia. This study investigates mosquito species abundance and diversity, as well as the arbovirus prevalence across human, …
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Direct and indirect effects of native and invasive plants on mosquito ecology
Container-breeding mosquitoes (Diptera: Culicidae), including the vectors of human and wildlife pathogens, interact with terrestrial plants throughout their life cycles. Inputs of leaf detritus into the aquatic habitat provide an energy base for developing larvae, and plants mediate the …
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Social and ecological risk factors for mosquito production in residential neighborhoods
Mosquitoes (Diptera: Culicidae) transmit many pathogens that affect human and wildlife health, including West Nile, Zika, dengue, and chikungunya viruses. Since vaccines are not currently available for many of these pathogens, control of the vectors is the most effective method to reduce disease …
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Oviposition Preferences for Infusion-Baited Traps and Seasonal Abundance of Culex Mosquitoes in Southwestern Virginia
… studies provide information on the relative abundance of gravid mosquitoes. Ovitraps were used in the summers of 2002 and 2003 to measure the oviposition activity of Culex mosquitoes, mainly Cx. restuans and Cx. pipiens. In 2002, 1,345 egg rafts were collected from 5 traps set at different …
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