Browsing PhD Theses: Department of Department of Biological Sciences by Title
Now showing items 1-9 of 9
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Assesing the Drivers of Pollinator and Natural Enemy Community in Pigeonpea and Field Bean Crops
(The University of Reading, 2010-09)1. Arthropods are key components in agro-ecosystems providing critical ecosystem services to crops, such as pollination and natural pest control. The structure and functioning of these arthropod communities can be influenced ... -
THE BIO-ECOLOGY AND GENETIC STRUCTURE OF Tuta absoluta (Meyrick) IN KENYA
(GRACE WAITHIRA KINYANJUI, 2022-09)Tomato (Solanum lycopersicum L.) is an important vegetable in Kenya in terms of its economic value and production. However, successful production is hampered by insect pests, and invasion by tomato leafminer, Tuta absoluta ... -
Control of termites and land use effects on their Diversity in Machakos and Embu Counties, Kenya
(UoEm, 2022-06)GENERAL ABSTRACT Termites cause damage to agricultural crops, forests and natural vegetation, in several parts of Africa. In Eastern Kenya, termites have been reported to cause between 50 to 100% yield losses in maize ... -
Diversity and function of polysaccharide Degrading bacteria from lake magadi, kenya
(Alex Cherutich Kipnyargis, 2024-08)Soda lakes are extreme environments characterized by high alkalinity and salt concentrations and moderate to high temperatures. Despite these conditions, soda lakes support distinctive microbial communities that are a ... -
Empirical and model derived respiration responses to climate in different soils of an arid South African ecosystem
(The University of the Western Cape, 2009)This study examined the magnitude of soil CO2 efflux in an arid South African ecosystem, the flux responses as well as those of key limiting nutrients to soil temperature increases and moisture reductions consistent with ... -
Epidemiology of Foot and Mouth Disease, Brucellosis and Leptospirosis at the Livestock Wildlife Interface Area in Maasai Mara, Kenya
(University of Embu, 2020-10)Intact ecosystems can regulate the transmission of infectious diseases by maintaining the diversity of species in equilibrium. However, human driven land use change is a major driver of environmental change and can affect ... -
Functional Diversity and Ecological Role Of Nematodes in Pigeon Pea And Maize-Pigeon Pea Agro-Ecosystems
(UoEm, 2023-08)Kenya relies heavily on pigeon pea (Cajanus cajan L.) and maize (Zea mays L.) as essential food crops, widely grown by small-holder farmers for food, feed, and income. These crops face significant production challenges due ... -
Microbial Diversity of Lake Elmenteita, Kenya
(Jomo Kenyatta University of Agriculture and Technology, 2009)The major goal of microbial ecology is to understand microbial diversity in natural habitats their interaction with one another and with their habitat. The soda lakes are highly productive environments and the soda lakes ... -
Nutritional contribution of atmospheric deposition to the Strandveld vegetation of West Coast South Africa
(University of Cape Town, 2013-07)Ecosystem nutrient availability depends on the balance between rates of nutrient inputs and losses. Nutrients may be lost through fire and displacement of ash, herbivory, leaching and volatilization. The main pathways ...
