School of Environment and Natural Resources: Recent submissions
Now showing items 21-40 of 101
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Benthic Macro-invertebrate Diversity and Biomass Distribution in Relation to Canopy Cover and Organic Matter in River Njoro, Kenya
(Egerton University, 2013)Field experiments to quantify benthic macroinvertebrate density, diversity and biomass and benthic organic matter (BOM) content in the River Njoro, Kenya, were conducted between January 2009 and April 2009 at four sites ... -
Small Hydro-power Plants in Kenya: A Re view of Status, Challenges and Future Prospect
(Materials and Energy Research Center (MERC) & Iranian Association of Chemical Engineers (IAChE), 2016)Small Hydro-power Plants (SHP) are important sources of electricity in many countries. However, little is known about SHP in Kenya. This paper reviews the status, challenges in implementation of SHP and prospects for future ... -
Sensitivity of Colletotrichum gloeosporioides Isolates from Diseased Avocado Fruits to Selected Fungicides in Kenya
(Hindawi, 2018)Colletotrichumgloeosporioidesisaseriouspostharvestpathogenofavocadofruitsworldwide.Kenyalacksanyregisteredfungicides for the management of the disease. Nevertheless, farmers commonly use commercially available fungicides ... -
Effect of drift sampler exposure time and net mesh size on invertebrate drift density in the Njoro River, Kenya
(Taylor & Francis, 2018)Although invertebrate drift is an important ecological process in lotic ecosystems, very little is known about it in Kenyan rivers. The primary aim of this study was to investigate the effect of driftnet mesh size and ... -
Invertebrate drift densities in the Njoro and Kamweti Rivers in the Kenyan highlands that differ in the level of anthropogenic disturbances
(Taylor & Francis, 2018)Invertebrate drift is one of several fundamental ecological processes in streams. However, little is known about the dynamics of invertebrate drift in Kenyan streams. In this study, we assessed invertebrate drift in two ... -
Effect of Sieve Mesh Size on the Estimation of Benthic Invertebrate Abundance and Composition in the Honi River, Kenya
(Nature Kenya/East African Natural History Society, 2014)Characterisation of benthic invertebrate communities, taxonomic abundance and composition provides information that is used during river bioassessment. However, the mesh size of the sieves used during processing of ... -
Does the exclusion of meiofauna affect the estimation of biotic indices using stream invertebrates?
(Taylor & Francis, 2016)Biomonitoring of rivers is usually undertaken using information based on macroinvertebrate assemblages. However, exclusion of meiofauna (i.e. invertebrates less than 0.5 mm in size) when sorting benthic invertebrates can ... -
A critical review of the effect of water storage reservoirs on organic matter decomposition in rivers
(NRC Research Press, 2016)Organic matter decomposition is vital in sustaining river food webs. However, little is known about the effect of water storage reservoirs on organic matter decomposition in rivers. In this paper, we reviewed and analyzed ... -
Methane-Derived Carbon in the Benthic Food Web in Stream Impoundments
(Public Library of Science, 2014)Methane gas (CH4) has been identified as an important alternative source of carbon and energy in some freshwater food webs. CH4 is oxidized by methane oxidizing bacteria (MOB), and subsequently utilized by chironomid ... -
Monitoring water and habitat quality in six rivers draining the Mt. Kenya and Aberdare Catchments using Macroinvertebrates and Qualitative Habitat Scoring
(2014)The study was conducted in June and September 2011 in six rivers that drain Mt. Kenya and the Aberdare catchments, i.e. Honi, Naro Moru, Liki, Sirimon, Mariara and Karigu. The main objective was to determine the ecological ... -
Effect of Small Impoundments on Leaf Litter Decomposition in Streams
(John Wiley & Sons, Ltd, 2015)Leaf litter decomposition is an important process providing energy to freshwater biota. Flow regulation and dams can strongly alter freshwater ecosystems, but little is known about the effect of small impoundments on leaf ... -
Landslide scar/soil erodibility mapping using Landsat TM/ETMþ bands 7 and 3 Normalised Difference Index: A case study of central region of Kenya
(Pergamon, 2015)Landsat series multispectral remote sensing imagery has gained increasing attention in providing solutions to environmental problems such as land degradation which exacerbate soil erosion and landslide disasters in the ... -
Spatio-temporal vegetation dynamics and relationshipwithclimate over East Africa
(Hydrology and Earth System Sciences, 2016)Vegetation plays a key role in the global climate system via modification of the water and energy balance. Its coupling to climate is therefore important particularly in the tropics, where severe climate change impacts ... -
Agrobiodiversity endangered by sugarcane farming in Mumias and Nzoia sugarbelts of Western Kenya
(Academic Journals, 2014)Commercial sugarcane farming has been practised in western Kenya for nearly forty years. This monocultural land use is associated with loss of natural vegetation and cropland, thus undermining food security status of a ... -
Influence of Land Tenure on Gender Participation in Management of Water Projects in Njoro Sub-County, Nakuru
(2016)Most water projects in Kenya, account for women having fewer opportunities in decision making committees than the men counter parts. In Njoro sub-county there are different ethnic groups who utilize land and water differently ... -
Impact of Community Health Strategy on Provision of Health Services Among Residents of Nakuru Central
(International Journal of Scientific and Research Publications, Volume 5, Issue 8, August 2015, 2015)Community health strategy (CHS) is an approach of one of the Kenyan Vision 2030 flagship projects that intends to improve the health status of communities, through initiation and implementation of ... -
METRIBUZIN SORPTION DYNAMICS IN ACID SOILS OF NZOIA SUGARCANE ZONE IN WESTERN KENYA
(2011)The adsorption, desorption and leaching of metribuzin in agricultural soil samples taken from Nzoia sugarcane farming area in Kenya were determined using standard methods. The Freundlich adsorption isotherm constants ... -
Soil properties effects and management of organic residues to improve C sequestration, reduce N losses and improve crop yields
(2010)Rates of decomposition of organic materials in soil determine the amount of carbon (C) which is mineralized and released as CO2 versus the amount of C that is retained in various forms in the soil. Decomposition rates ... -
Drivers of Forest Cover Change and Indicators of Climate Change in Katimok Forest Reserve
(2016)The conversion of forests into other land uses as well as unsustainable utilization of forest resources leads to a reduction in the area, quality and quantity of the forest cover and ecosystem services. Changes in ... -
Rainfall Variability Effects on Pastoral Pasture Availability in Turkana Central Sub-County, Kenya
(Science Domain, 2016)This study was conducted to analyse rainfall variability and assess its effects on pasture availability, over the period 1983 to 2014. Study Design: The study employed causal research design, in order to highlight the ...
