Browsing School Of Biological Sciences by Title
Now showing items 14-33 of 54
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Developing a genetic classification for gene pool management of spotted gums
(02-07-13)Spotted gums (Genus Corymbia Section Politaria) occur as a species replacement series along the eastern seaboard of Australia, their distributions marked by regions of disjunction and sympatry. Their taxonomy remains ... -
The dynamics of Anopheles arabiensis Patton and Anopheles funestus Giles larval densities in relation to small-scale rice cultivation practices in Western Kenya
(University of Nairobi,School of Biological Sciences, 1990)A two-year study was conducted on the densities of Anopheles arabiensis Patton and Anopheles funestus Giles larvae in two rice cultivation sites with divergent farming practices, at the Ahero Irrigation Scheme, Kenya. The ... -
Effect of physicochemical conditions on growth rates of cyanobacteria species isolated from Lake Magadi, a soda lake in Kenya
(University of Nairobi, 2014)Cyanobacteria contribute significantly to primary productivity by adding nitrogen into the ecosystem through nitrogen fixation. They are also used as biofertilizers, food and feed while others produce compounds that have ... -
Estimation of the survival rates of field populations of malaria vectors in Kenya
(University of Nairobi,School of Biological Sciences, 1985)Results revealed that the average survival rates between the dry and the wet seasons mosquito populations of individual species was possible in An gambiae s. str. The survival for this species was higher during the dry ... -
Evaluation of resistance to insecticides in the mosquito larvae of Anopheles gambae Giles and its control by microbial bacterial pathogens
(University of Nairobi,School of Biological Sciences, 1989)It was found that resistance factors of mosquito larvae were near unity for dieldrin, and 2 to 3 times for Malathion at both Ahero and Mwea, and 2 times for DDT at Ahero. These low resistance factors indicated little or ... -
Extremophiles For Environmental Biotechnology Collaborative Project Bio-earn
(University of Nairobi, 2009) -
Flora of tropical East Africa, Rutaceae family 1–45
(School of Biological Sciences, 1982) -
Genetic Variation in Rhipicephalus appendiculatus (Acari: Ixodidae) Populations in Kenya, Assessed by two-Dimensional Gel Electrophoresis
(2013)The study of protein variation is an indirect, relatively inexpensive approach to genetic analysis. In this study, the protein profiles of two distinct populations of the brown ear tick (Rhipicephalus appendiculatus) ... -
The human aspects in the utilization of science and technology for agricultural development
(University of Nairobi,School of Biological Sciences, 1980) -
The impact of human land use activities and seasonal changes on dung Beetles (Insecta: Coleoptera) diversity of the Kakamega Forest ecosystem
(University of Nairobi,School of Biological Sciences, 2005)Based on quantitative comparative data collected in the Kakamega Forest and adjacent farmlands between October 2002 and August 2003, analyses were made to ascertain the extent of the different modes of land use, and seasonal ... -
Influence of relative humidity on the growth and development of the Mite Typhlomalus aripo De Leon (Acari: Phytoseiidae): Evidence from Laboratory and Greenhouse experiments
(University of Nairobi,School of Biological Sciences, 2009)The influence of selected relative humidity regimes on the development and growth of the various immature stages from egg to adult of the predacious mite Typhlodromakus aripo de Leon was studied in the laboratory at a ... -
Insect and disease control
(University of Nairobi,School of Biological Sciences, 1979) -
Insect pests of Cowpeas Vigna unguiculata (L.) Walp. and studies on Cowpea yield assessment under different chemical spray regimes and minimum use of insecticides against the dominant insect pest species at Katumani Dryland Research Station, Kenya
(University of Nairobi,School of Biological Sciences, 1984)Studies to identify major insect pests attacking cowpea, Vigna unguiculata (L) Walp., in the field and to assess cowpea yields under different chemical control regimes were conducted at Katumani, Kenya during the short and ... -
Insect species associated with Cajanus cajan (L) Millsp. (Pigeon pea) in Kenya and their seasonal occurrence, Kenya
(University of Nairobi,School of Biological Sciences, 1978) -
IOPB chromosome number reports
(University of NairobiDepartment of Botany, 1969) -
Larval habitats of the common biting midges Culicoides Latreille (Diptera: Ceratopogonidae) in Kenya
(University of Nairobi,School of Biological Sciences, 1972)The larval habitats of Culicoides species were determined by examining a total of 1476 samples collected from different ecological environments in various parts in Kenya. Immature stages were collected from suspected ...