Browsing RP-Department of Biological Sciences by Issue Date
Now showing items 1-20 of 25
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Correlation of melting temperature and cesium chloride buoyant density of bacterial deoxyribonucleic acid.
(American Society for Microbiology, 1970)Samples of bacterial deoxyribonucleic acid from bacteria having guanine plus cytosine (GC) contents in the range of 27 to 72 moles per cent GC were analyzed by optical melting (T(m)) and equilibrium buoyant density methods. ... -
Standing biomass and carbon distribution in a papyrus (Cyperus papyrus L.) swamp on Lake Naivasha, Kenya
(Cambridge University Press, 1997-05)The standing live biomass of papyrus swamps is high compared with most other communities dominated by herbaceous vegetation. For the first time, measurements of below-ground rhizome and root biomass are reported here, in ... -
Use of arbuscular mycorrhiza fungi for improved crop production in sub-Saharan Africa
(2002)Soil fertility depletion through crop removal, soil erosion and leaching is a major challenge to increased crop productivity in Sub-Saharan Africa. Whereas nitrogen can be replenished using Rhizobium inoculants and growing ... -
Sacred groves (kibaga) of Mfangano Island, Lake Victoria, Kenya
(Kenyatta university, 2004)A questionnaire method was used to obtain information about the sacred groves and identity of other protected and sacred plants ofMfangano Island. Some 36 sacred groves, locally known in the Suba language as Kibaga, were ... -
Life tables, key factor analysis and density relations of natural populations of the spotted maize stemborer, Chilo partellus (Lepidoptera: Crambidae), under different cropping systems at the Kenyan coast
(Cambridge University Press, 2005-06)Studies were conducted at Mtwapa, in the coastal area of Kenya, during the long and short rains of 1999 and 2000 to evaluate interaction of mortality factors in lowering Chilo partellus (Swinhoe) populations in diverse ... -
Dynamics of immature stages of Anopheles arabiensis and other mosquito species (Diptera: Culicidae) in relation to rice cropping in a rice agro-ecosystem in Kenya
(Wiley, 2006)We determined changes in species composition and densities of immature stages of Anopheles arabiensis mosquitoes in relation to rice growth cycle in order to generate data for developing larval control strategies in rice ... -
Effects of Canavalia ensiformis and Mucuna pruriens intercrops on Pratylenchus zeae damage and yield of maize in subsistence agriculture
(Kluwer Academic Publishers, 2006-06)Host status of four leguminous cover crops [Canavalia ensiformis (L.) DC. (Jack bean), Crotalaria ochroleuca G. Don (Sunnhemp), Lablab purpureus L. (Hyacinth bean) and Mucuna pruriens (L.) DC. (velvet bean)] to Pratylenchus ... -
Parental awareness of hearing impairment in their school-going children and healthcare seeking behaviour in Kisumu district, Kenya
(Elsevier, 2007-03)Background Hearing-impaired children who are identified early and appropriately managed have improved outcomes in speech, language, cognitive and social development. Enhanced parental awareness of their child's hearing ... -
Bionomics of the acarophagous ladybird beetle Stethorus tridens fed Tetranychus evansi
(Wiley, 2007-06-02)The bionomics of Stethorus tridens Gordon fed Tetranychus evansi Baker & Pritchard were studied in the laboratory. The number of prey consumed by S. tridens increased with increasing instar levels and the total mean number ... -
Spatial distribution of cocoon nests and egg clusters of the silkmoth Anaphe panda (Lepidoptera: Thaumetopoeidae) and its host plant Bridelia micrantha (Euphorbiaceae) in the Kakamega Forest of western Kenya
(Cambridge University Press, 2007-12)A study on the spatial distribution of the silkmoth Anaphe panda (Boisduval) cocoon nests, egg clusters and the host plant Bridelia micrantha (Hochst) Baill. was conducted in two different habitats of the Kakamega Forest ... -
Parasitoids of the African wild silkmoth, Gonometa postica (Lepidoptera: Lasiocampidae) in the Mwingi forests, Kenya
(Wiley, 2009-07)Gonometa postica Walker produces silk of high quality, but it is affected by parasitoids attack. A study on the parasitism of G. postica larvae and pupae on host and non-host plants were undertaken for the first and second ... -
Plant parasitic nematodes: a threat to vegetable production in Kenya
(African Crop Science Society, 2011)A survey of plant parasitic nematodes (PPN) associated with cabbage was carried out in selected agro-ecological zones (AEZs) in Kenya to determine PPN density, distribution and farmer’s awareness of nematodes associated ... -
Molecular Characterization of HIV Type 1 among HIV-Infected Respondents in a Cohort Being Prepared for HIV Phase III Vaccine Clinical Trials, Western Kenya.
(PubMed, 2011-03)Kenya is one of the sub-Saharan African countries affected by HIV-1 infection and AIDS. We investigated HIV-1 genetic diversity in 130 individuals from Busia, Bungoma, and Kakamega in western Kenya as part of an HIV-1 ... -
Biotaxonomy of cassava green spider mites, Mononychellus spp. (Tetranychidae): “Life type” as a possible biological criterion for their identification
(Cambridge University Press, 2011-09-19)The life patterns of cassava green spider mite populations were compared using characteristics of spinning behaviour and other associated biological parameters so as to determine the possibility of using these criteria for ... -
Biology of the Wild Silkmoth Anaphe panda (Boisduval) in the Kakamega Forest of Western Kenya
(Hindawi Publishing Corporation, 2012)A study on the life cycle of the silkmoth Anaphe panda (Boisduval) was conducted in two different habitats of the Kakamega Forest in western Kenya: Ikuywa, an indigenous forest, and Isecheno, a mixed indigenous forest. ... -
Effect of Predation on Anopheles Larvae by Five Sympatric Insect Families in Coastal Kenya.
(Medknow Publications, 2013-03)BACKGROUND & OBJECTIVES: The use of insecticides to eliminate mosquito larvae from ground pools may disrupt atural predator-induced control of mosquito larvae. Detrimental effects on predators may be directly from ... -
Physico-chemical Analysis, Microbial Isolation, Sensitivity Test of the Isolates and Solar Disinfection of Water Running in Community Taps and River Kandutura in Nakuru North Sub-county, Kenya
(Academic Journals, New York, 2015)Nakuru North sub-county is a peri-urban area which has both dry and wet seasons. Its residents rely mostly on untreated water sources for daily water needs due to unreliable water supply from the urban council. However, ... -
Effects of glucocorticoids in Leishmania major infection
(2015)Leishmania parasites activate NF-κB which induces Th2 expression and inactivates Th1 genes thus subverting the host defense response and promotes the survival and development of the parasite in macrophages. Macrophages ... -
Hepatitis B Virus Sero-profiles and Genotypes in HIV-1 Infected and Uninfected Injection and Non-injection Drug Users from Coastal Kenya
(BioMed Central, 2015)Background: Information about HBV sero-markers, infection stages and genotypes in HIV-1 infected and uninfected injection and non-injection drug users (IDUs) in Kenya remains elusive. Methods: A ...
