Browsing Department of Environmental Studies by Title
Now showing items 5-24 of 37
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Biological diversity of the Yala Swamp lakes, with special emphasis on fish species composition, in relation to changes in the Lake Victoria Basin (Kenya): threats and conservation measures
(Biodiversity & Conservation, 2003-05)During the second half of the last century, the Lake Victoria ecosystem has undergone drastic ecological changes. Most notable has been the decline in the populations of many endemic cichlid fishes. The lake has lost nearly ... -
Biomass Energy Resource of the Highland Bamboo (Yushania alpina) and Its Potential for Sustainable Exploitation in Southern Aberdares Forest
(Scientific Research Publishing, 2017-08)Yushania alpina is the only bamboo species native to Kenya and covers about 150,000 ha growing in pure or mixed stands in the montane forests. The Aberdare forest is one of the natural habitats for Y. alpine occupying an ... -
Carbon Sequestration by the Above Ground Biomass Pool in the South West Mau Forest of Kenya, 1985 - 2015
(Journal of Environment and Earth Science, 2020)Forests are important for regulation of the global carbon balance. Increase in forest biomass enhances atmospheric carbon sequestration while decrease in forest biomass contributes to carbon dioxide emissions. World over, ... -
Climate Change Perception Among the Pastoralist Women in Narok County
(Academic Research International, 2018-03)With regards to the effects of climate change, Kenya has identified its ASALs as the most vulnerable areas to climate change with huge impacts on livestock rearing, small-holder agriculture and tourism, which are the ... -
Combined effects of photoperiod and temperature on growth and survival of African catfish (Clarias gariepinus, Burchell 1822) larvae under laboratory conditions
(Taylor and Francis, 2016)The effect of photoperiod (24L:00D, 12L:12D, and 00L:24D) and temperature (22 ± 1°C and 28 ± 1°C) on performance of Clarias gariepinus larvae was tested. Larvae weighing 3.2 ± 0.24 mg were cultured in aquaria at a stocking ... -
Comparative performance of invasive alien Eichhornia crassipes and native Ludwigia stolonifera under non-limiting nutrient conditions in Lake Naivasha, Kenya
(Hydrobiologia, 2010-09)The ability of Ludwigia stolonifera to thrive in the presence of Eichhornia crassipes was investigated in Lake Naivasha, Kenya. L. stolonifera (indigenous) and E. crassipes (invasive alien) were grown in outdoor experimental ... -
Competition between Lemna minuta and Lemna minor at different nutrient concentrations
(Plant Biology and Nature Management (APNA) Elsevier, 2011-02)We investigated the differential responses of invasive alien Lemna minuta and native Lemna minor to nutrient loading as well as the mechanism of competition between the species. The role of nutrients, species identity, ... -
Competitive abilities of invasive Lagarosiphon major and native Ceratophyllum demersum in monocultures and mixed cultures in relation to experimental sediment dredging
(Aquatic Botany, 2011-06)Competitive abilities of Lagarosiphon major (Ridley) Moss (invasive in Belgium) and native Ceratophyllum demersum L. were assessed experimentally in relation to sediment dredging. We mimicked these conditions by taking ... -
Diversity and Altitudinal Distribution of Understorey Corticolous Lichens in a Tropical Montane Forest in Kenya (East Africa)
(research gate, 2018)Lichens constitute an important component of tropical forest biodiversity. This study inventoried corticolous lichens and examined their variation in various forest types with varying climatic conditions in Mt. Kenya, East ... -
Dryland Farming and Food Security in Kenya: Challenges and Research Priorities
(Elixir, 2011-06)Agriculture is the backbone of Kenya and employs the highest proportion of the population, accounts for approximately a quarter of the country’s Gross Domestic Product (GDP) and close to two-thirds of total exports, hence ... -
Ecological, Recreational and Educational Potential of a Small Artificial Wetland in an Urban Environment
(African Journal of Aquatic Science, 2019-11)Pertinent questions remain on whether small, artificial wetlands, such as abandoned quarries play any ecological or socio-economic role in the environment. To increase information on roles played by small-sized artificial ... -
Environmental assessment of the East African Rift Valley lakes
(Aquatic Sciences, 2003)An assessment of the East African Rift Valley lakes was initiated by the United Nations Environment Programme (UNEP) with funding from Global Environment Facility as part of the Global International Waters Assessment (GIWA). ... -
Environmental Determinants of Choice of Sustainability Strategies Adopted by Group Ranches in Samburu County, Kenya
(2017)The group ranch system is one of the best land ownership and livestock production strategies Page | 153 in the dry lands of the world where the potential for rain-fed agriculture is limited. This has resulted in ... -
Evidence of nutrient translocation in response to smoke exposure by the East African ant acacia, Vachellia drepanolobium
(Wiley & Sons Ltd, 2021-09)1. Fire is a major selective force on arid grassland communities, favoring traits such as the smoke-induced seed germination response seen in a wide variety of plant species. However, little is known about the relevance ... -
Faecal Bacterial and Parasitic Contamination of Drinking Water in Eldoret Municipality, Kenya
(2012)Faecal contamination of water can introduce a variety of pathogens into water ways, including bacteria, viruses, protozoans and parasitic worms. Poor excreta disposal is often associated with lack of adequate water supplies, ... -
Financing provision of environmental services in Mt. Elgon region for the protection of watersheds
(VDM Dr Muller Gmbh and co, 2011-01)This study examined direct payments for environmental services (PES) as a program for supporting the conservation of forest resources and services where environmental conservation is financed on the basis ... -
Fine‐scale variation in soil and topography influences herbaceous vegetation and the distribution of large mammalian herbivores
(Wiley, 2023-04)Current understanding of the distribution of vegetation and large mammalian herbivores (LMH) is based on a combination of biogeographic studies and highly controlled field experiments, but a more complete understanding ... -
Hourly reference evapotranspiration analysis using synoptic meteorological measurements and ERA5 reanalysis data from Kenyan Counties
(2023-09)Kenya has had five failed rain seasons for the last three years. In this context, there was a mass recurrent crop failure, death of livestock and wildlife, persistent water scarcity, and droughts of varying intensities. ... -
Impact of human activities on land degradation IN Lugari subcounty, Kakamega county, Kenya
(E3 Journals, 2016-10)This study investigated the impact of human activities on land degradation in Lugari Sub-County, Kakamega County in Kenya. The study sought to analyze the extent of land degradation; identify the causative factors for land ...