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 14 of 14 for “"epizootics"”.
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A computer model of wildlife rabies epizootics and an analysis of incidence patterns
… and model the characteristics of rabies epizootics in wildlife populations. Initial analysis of temporal and spatial relationships between reported rabies cases in four ecologically divergent counties was conducted. No single pattern of report incidence was found to be characteristic of …
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The Effects of Neuroendocrine Stress on Larval Development
… dynamics, like nutrient cycling and disease epizootics. Animals are not equally susceptible to stressors across all stages of their life cycles. Critical windows of development, common in young and developing animals, are time periods when stressors have an outsized effect and can permanently …
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Breeding success, prey use, and mark-resight estimation of burrowing owls nesting on black-tailed prairie dog towns: plague affects a non-susceptible raptor
… bird species were less commonly eaten following epizootics. It appears that burrowing owls often forage outside of prairie dog towns, making town-level differences less relevant to owl diets. Our third objective was to determine the effects of plague, prairie dog town dynamics, and rainfall on …
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Studies on the Microsporidium, Octosporea Muscaedomesticae in Two Species of Calypterate Diptera
… is transmitted from adult to adult flies and epizootics are influenced largely by adult fly density and the number of active feeding sites; (5) O. muscaedomesticae is not an important naturally occurring biological control agent of flies.
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Exploring the ecology of Orthobunyaviruses in Virginia and their pathogenesis in murine and poultry models
… in 1956, has been associated with multiple epizootics of CVV in ruminants, leading to spontaneous abortions and congenital malformations. As such, CVV is a virus of high economic relevance, but little is known about fundamental aspects of its biology. To address this gap of knowledge, I …
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Determining the Pathogenesis and Enzootic Transmission of Usutu Virus
… into Europe was marked by large die-offs, or epizootics, of the Eurasian blackbird (Turdus merula), as well as an increase in human cases. This dissertation sought to understand whether USUV has evolved to become more pathogenic in humans or transmissible in birds. We compared the pathogenesis …
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Immunogenetics of free-ranging felids on Namibian farmlands
… to have escaped from large-scale declines due to epizootics in the past in contrast to some free-ranging large carnivore populations in Africa that have been afflicted by epizootics. Currently, no information about the MHC sequence variation and constitution in African leopards exists. In this …
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An Avian Botulism Epizootic Affecting a Nesting Site Population of Presbyornis : on a Carbonate Mudflat Shoreline of Eocene Fossil Lake
… <p>Analogous modem avian botulism epizootics are often preceded by a mass mortality of aquatic invertebrates, which are exposed and killed by rapid shoreline regression. Many mechanisms have been proposed for mass mortality of waterfowl. The evidence from this site is most …
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Cache Valley Virus: A Comparison Across Both Lineages and Reassortant Strains Using in vitro and in vivo Models
… in 1956 and has sporadically emerged to cause epizootics in livestock, particularly affecting small ruminants. CVV is a known teratogenic virus, and its infection has been associated with spontaneous abortions and several birth defects in ruminants such as sheep, goats, and cattle. Seven human …
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The Development of an African Horse Sickness Virus VP7 Quasi-Crystal Vaccine Candidate in N. benthamiana
… equines and has resulted in many disastrous epizootics. To date, no successful therapeutic treatment exists for AHS and the commercially used live-attenuated vaccines (LAVs) have various side effects. Insoluble particulates have been shown to increase immunogenicity when compared to soluble …
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Investigation of a major reduction in hunter harvest of the cottontail rabbit in southeastern Virginia
… in rabbit populations in Virginia and recurrent epizootics of tularemia have been responsible for continuous declines in hunter harvest.
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An agent-based model to simulate virus-based biocontrol for the soybean cyst nematode, Heterodera glycines
… transmissible viruses lead to the most damaging epizootics is in agreement with the generally accepted trade-off theory in virulence evolution. However, the evolution of the transmissibility and prevalence curves through time reveal some inconsistencies in the mechanisms of disease spread with …
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Monitoring for Chronic Wasting Disease in Mule Deer and White-Tailed Deer at Wind Cave National Park: Investigating an Emerging Epizootic
… as the predominate source of infection for CWD epizootics. An indirect form of horizontal infection includes environmental contamination, which has recently been confirmed experimentally to be a source of infection. We radiocollared and tested 4 white-tailed deer and 60 mule deer for CWD in Wind …
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Pestens gåta : farsoter i det tidiga 1700-talets Skåne
This study deals with Sweden’s last outbreak of the plague with focus on Skåne, where the epidemic raged for three years - from late autumn 1710 to late autumn 1713. This was a time of war, crop failures as well as other simultaneously occurring epidemics. The outline of this study can be …