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Growth response of woody species to elephant foraging in Mwea National Reserve, Kenya
(University of Nairobi, 2009-12)
The African elephant (Loxodonta africana) is known to greatly affect the structure and dynamics of vegetation. In Mwea National Reserve, elephants foraged mainly on Acacia ataxacantha and Grewia bicolor out of the five ...
Toward a holistic and risk-based management of european river basins
(University of Nairobi, 2009)
The European Union Water Framework Directive (WFD) requires a good chemical and ecological status of European surface waters by 2015. Integrated, risk-based management of river basins is presumed to be an appropriate ...
Soil nutrient content, soil moisture and yield of Katumani maize in a semi-arid area of Kenya
(2007)
Many farmers in Kenya’s semi arid lands cannot afford to purchase inorganic fertilisers to improve their
crop yields. They thus rely on traditional agronomic practices such as addition of crop residues, animal
manures ...
Factors affecting abundance and distribution of submerged and floating macrophytes in Lake Naivasha, Kenya
(2007)
Macrophytes have been shown to perform important ecological roles in Lake Naivasha. Consequently, various studies regarding the impact of biotic factors on the macrophytes have been advanced but related studies on environmental ...
Vegetation dynamics of coastal sand dunes near Malindi, Kenya
(University of Nairobi, 2001-06)
This study describes the composition, structure and distribution of coastal dune vegetation near Malindi, Kenya. The vegetation was made up of 156 plant species. Sixty families were recorded with Gramineae (seventeen ...
Assessment of the performance of exotic and indigenous tree and shrub species for rehabilitating saline soils of Northern Kenya
(University of Nairobi, 2003)
In the semi-desert zone of North Horr, northern Kenya, soil salinity reaches toxic levels, with extensive salt crusts at the surface. Environmental groups are involved in tree and shrub planting trials with the objective ...
Growth characteristics of two tropical forest species Warburgia ugandensis and Polyscias fulva seedlings grown under contrasting light conditions
(University Of Nairobi, 2008)
Growth parameters for seedlings of two forest trees, Warburgia ugandensis and Polyscias fulva, were
measured under various light growth conditions. Leaf area and plant height were significantly higher
under low light (< ...
δ13 Values of the Centrospermeae Species and Their Ecological Implications in the Semi Arid Conditions
(University Of Nairobi, 2008)
δ13C values of the Centrospermeae species are presented. 69.5, 28.45, 1.25 and 0.8% of the total species are C3, C4, C3-C4 and CAM photosynthetic species. The δ13C values are species dependent. δ13C values for the C3 range ...
Community participation in the rehabilitation of a sand dune environment in Kenya
(University of Nairobi, 2009)
This study aims to document various community efforts in land rehabilitation and assess their potential. Data were captured using interviews and focus group with 150 community members. A public participation index was used ...
The distribution of C3 and C4 photosynthetic species of the Centrospermeae along an altitudinal gradient in Western Kenya.
(University of Nairobi, 2009)
Two hundred and seventy eight species of the Centrospermeae were collected at different sites in Western Kenya representing gradients of altitude and aridity. Climate data were obtained from meteorological research stations. ...