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 8 of 8 for “"Rodent population"”.
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The development of a reverse genetics system for Machupo virus
… or outbreaks. Following implementation of rodent population controls after the initial outbreak, no cases of BHF were reported from 1976 to 1993. Reports in the last five years from the endemic region have identified a surge in reported cases and deaths from the disease. Since then, very …
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Small mammal community structure (Rodentia: Muridae) in Punda Maria, Kruger National Park, South Africa : Causes and consequences
The population dynamics of small mammal populations in Punda Maria, Kruger National Park, South Africa was investigated with respect to community size and structure, seed predation and dispersal of several trees. Species populations, community structure and habitat attributes were measured at six …
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Use of molecular tools to investigate the prevalence and transmission routes of Toxoplasma in woodmice and humans
… are the definitive host for the parasite and rodents are believedto be involved in propagation of the parasite in cat populations. The aims of this studywere to use molecular biological methods to investigate parasite transmission in wildrodents and humans.In this study, the prevalence of …
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Individual-Level Causes and Population-Level Consequences of Variation in Fitness in an Alpine Rodent
… consequences of this variation in a wild rodent population. It shows the contemporary genetic evolution of body mass and decouples classic estimates of selection from adaptive evolution. The heart of evolutionary biology is understanding the variation in organisms. For over 150 years, …
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Response of rodents to land use gradients in small-holder farms in Northern Limpopo: implications for ecologically-based rodent management (EBRM)
Rodents can quickly respond to land use changes whether the change positively or negatively influences their life. In the case of positive influence, rodents exploit the additional food resources and increase their numbers to potential pest level, especially in the absence of predators. Such a …
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Demography, Reproduction, Diet and Crop Depredation in Three Species of Rodents in Natural and Irrigated Fields in Nigeria
<p>Rodent populations of <em>Arvicanthis, Mastomys</em> and <em>Tatera</em> were studied during July 1990 to August 1992 in both natural and irrigated savannah fields of northern Nigeria. <em>Tatera</em> was entirely absent from the irrigated fields. Irrigation enhanced higher rodent population …
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Assessing the effects of anticoagulant rodenticides on non-target fish species
… of many endemic species. The eradication of rodents on islands can leads to restoration of native ecosystems. Anticoagulant rodenticides (ARs) have been an effective tool for rat eradication on many oceanic island systems (Wilmer et al 2007). The Hawaiian Islands, USA have used first …
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BEHAVIORAL ECOLOGY OF ORYZOMYS PALUSTRIS (MARSH RICE RAT) IN COASTAL TEXAS: IMPLICATIONS FOR THE LIFE-HISTORY STRATEGY OF BAYOU VIRUS (BAYV)
… change) and habitat conversion to increases in rodent host abundances with concomitant increases in HPS cases. However, the factors involved in maintenance of hantavirus seroprevalence levels in host populations at finer scales have proven elusive, as rodent phenotypic responses to environmental …