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 42 for “"Disease Ecology"”.
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Spatial and disease ecology of the plains spotted skunk
… combination of factors, including habitat loss, disease, and overharvest, may have collectively led to the population decline. As a result, a subspecies of eastern spotted skunk, the plains spotted skunk (S. putorius interrupta) has been petitioned for listing under the U.S. Endangered Species …
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Linking Environmental Factors To Vector Abundance And Malaria Incidence: A Multi-Model Investigation Of Disease Ecology.
This dissertation examined the complex interactions between environmental, climatic, and entomological factors influencing malaria transmission in Mozambique. Malaria remains a leading cause of morbidity and mortality across the country, where transmission dynamics are shaped by ecological …
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Mathematical and Computational Applications in Disease and Landscape Ecology
… National Science Foundation's IGERT: Montana - Ecology of Infectious Diseases (MEID) program is to produce graduates with expertise to lead the collaborative, cross-, and inter-disciplinary efforts in education and research needed to address complex problems as exemplified by the ecology of …
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Mathematical and Computational Applications in Disease and Landscape Ecology
… National Science Foundation's IGERT: Montana - Ecology of Infectious Diseases (MEID) program is to produce graduates with expertise to lead the collaborative, cross-, and inter-disciplinary efforts in education and research needed to address complex problems as exemplified by the ecology of …
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Slavery and Sickness in the Lower Mississippi Valley, 1803-1860
This thesis traces the profound effect of disease and sickness upon the political economy and culture of the slave plantation system of the antebellum US South between 1803 and 1860. Specifically I explore the Lower Mississippi Valley area of the region, sometimes referred to as the ‘Cotton …
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The effects of urbanization on disease prevalence in managed honey bee hives in Hamilton County, TN
Rapid urban development may increase stress and disease exposure on economically essential organisms, including honey bees. We surveyed 18 apiaries containing 53 hives for diseases and productivity from 2021-2022 in Hamilton County, Tennessee at varying levels of urbanization. Disease levels were …
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Identifying biological and environmental indicators of emerging infectious diseases: the case of Buruli ulcer.
Understanding disease ecology is vital in preventing future outbreaks of established infections and to predict the emergence of new pathogens. In recent decades there have been a number of high profile infectious diseases which have swept across countries and in some cases the world. Many of these …
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Mathematical models of daphnia epidemics
Disease ecology studies the interactions among hosts, pathogens, and the environment and how these shape the spread of disease. These interactions can be quite complex and lead to fascinating dynamics. Our system of study, Daphnia has a lot of interesting and complex features that can be analyzed …
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A MARINE PATHOGENIC PROTIST ACROSS SCALES: HOST-MICROBIOME INTERACTION, PROVENANCE, MORPHOLOGY AND TAXONOMICAL CHARACTERIZATION OF THE SCUTICOCILIATE PARASITE OF DIADEMATIDAE
Emerging marine diseases pose growing threats to biodiversity and ecosystem stability, yet the ecological behavior, taxonomic identity, and host interactions of many pathogens remain poorly resolved. This dissertation presents an investigation into how the scuticociliate parasite responsible for …
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Multi-scale Transmission Ecology: How Individual Host Characteristics, Host Population Density, and Community Structure Influence Transmission in a Multi-host Snail Symbiont System
… era of global change, where emerging infectious diseases such as Ebola, Zika, bird flu, and white nose syndrome are affecting humans, wildlife, and domesticated species at an increasing rate. To understand and predict the dynamic spread of these infectious agents and other symbionts through host …
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Ecology of Borrelia burgdorferi sensu lato and epidemiology of borrelial infections in Cumbria
… the causative agent of the tick-borne zoonotic disease Lyme borreliosis (LB), of which around 2-3000 cases are reported annually in the UK. This project took a “One Health” approach to studying Borrelia burgdorferi s.l. in southern Cumbria exploring its medical and veterinary importance and …
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The ‘truth about Ebola’: Insecure epistemologies in post-outbreak Forest Guinea
… which the ‘truth’ about an outbreak of zoonotic disease stabilises through the labour of sampling animals. While scarcely any case of Ebola had ever been reported in West Africa, the deadliest epidemic to date started in 2013 in the southeastern region of Guinea called ‘Forest Guinea’. Since …
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Novel Applications of Geospatial Analysis in the Modeling of Infectious Diseases
… of geospatial analysis to answer questions about disease. In this work we explore two areas: the use of geostatistical modeling as an extension of niche modeling, and the use of mobility metrics to augment modeling for epidemic responses. Niche modeling refers to the practice of using statistical …
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Variable immunity and its consequences for parasite dynamics
Infectious disease represents a growing concern for our developing world. Human diseases result in morbidity, mortality, and suffering. Agricultural diseases can decimate food resources, leading to starvation and economic instability. Wildlife diseases affect the abundance and distribution of …
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Observations and mechanistic modelling of the role of Aedes mosquitoes in dengue transmission in Singapore
Dengue is the most prevalent human arboviral disease in the world with an estimate of 390 million cases per year. The disease is mainly transmitted by two mosquitoes: Aedes aegypti and Ae. albopictus. Despite the continuous efforts to curb the spread of the disease in Singapore, there is an upsurge …
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The eco-epidemiology of Chagas disease risk in Panama
Chagas disease is a vector-borne disease affecting between 5 to10 million people world-wide. It is spread by dozens of species of blood-feeding triatomines (Hemiptera: Reduviidae). Trypanosoma cruzi, a kinetoplastid protozoan parasite and causative agent of Chagas disease, is shed in the feces of …
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Effects of feeder surface cleaning on <i>Mycoplasma gallisepticum</i> transmission in House Finches
… so. However, feeders can also contribute to disease spread between songbirds. There are several proposed methods to limit this spread. Cleaning bird feeders is one commonly recommended practice. It is important to test whether recommended cleaning methods actually work to prevent spread, and …
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Impacts of host biology on the urban eco-epidemiology of West Nile virus
Disease transmission is inherently ecological, requiring ecological interactions among vectors, hosts and pathogens. Disease ecology as a field, however, has only emerged within the past several decades. Despite significant advances in the study of ecology of infectious diseases in the past twenty …
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Effects of Anthropogenic Environmental Stressors on Amphibian Immune Defenses and Host-Pathogen Interactions Across Temperate and Tropical Systems
As infectious diseases, climate change, and anthropogenic habitat alterations are projected to continue negatively impacting global biodiversity, we need to understand how physiological responses to these ecological stressors are impacting host health. Physiological stress responses are governed by …
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THE ECOLOGY OF TICK-BORNE RELAPSING FEVER IN WESTERN NORTH AMERICA
… the interactions and mechanisms responsible for disease maintenance, distribution, and genetic diversity. The objectives of this research were to: 1) identify mammals associated with <italic>B. hermsii</i> and <i>O. hermsi</i> by determining active infection and antibody presence, 2) develop a …
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