After chestnut blight, caused by the accidental introduction of the pathogenic fungus Cryphonectria parasitica , ravaged American chestnut (Castanea dentata ) populations, other chestnut species attracted more interest because blight resistance was of primary concern. Therefore,…
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Understanding the degree of connectivity among populations, forming migratory links and evaluating factors that influence reproductive fitness is fundamental for the successful management of migratory species of conservation concern. In this thesis I focus on a regionally import…
Freshwater streams in the developed world are becoming increasingly dominated by treated wastewater. Continually discharged into most surface waters, these effluents contain a suite of bioactive man-made chemicals, including steroid and non-steroid oestrogens, which have been fo…
Improving our understanding of the factors that shape the demography of populations now requires that we consider no event in isolation, and instead express current performance as a product of previous events and processes. Patterns of site choice and dispersal likely underpin a…
In Ethiopia's Awash National Park (ANP) there is a well-documented zone of hybridization between anubis and hamadryas baboons. Frequent immigration of hamadryas males into and long-term residence within anubis/anubis-hybrid troops are considered to be among the most important fa…
Cowpea [Vigna unguiculata (L.) Walp (Fabaceae)] is an important and major staple food crop in sub-Saharan Africa, especially in the dry savanna regions of West Africa. This dissertation focuses on the integration of integrated pest management (IPM) and the current trends in geno…