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Showing items 1 through 9 of 88.
  1. Library Resource
    Journal Articles & Books
    December, 2018
    Kenya

    Invasive alien species (IAS) are among the leading threats to biodiversity, food security and human well-being. Opuntia (prickly pear cactus) is one of the most widespread and naturalized in the arid and semi-arid areas of Kenya, with extreme effects on rural livelihoods and the environment. However, comprehensive information on the status of invasion in the country is lacking, which is crucial for developing strategies for prevention and management.

  2. Library Resource
    Journal Articles & Books
    December, 2018
    Kenya

    Land cover change in any ecosystem vary in space and time. The study analyzed spatial-temporal land cover change to predict forest degradation pressure points in Eastern Mau Forest Reserve. The study objectives were to determine types and amount of spatial-temporal land cover change; land cover change drivers and; forest resources use sustainability. The study used mixed sample survey design involving purposive sampling of spatial data and cluster sampling of forest resource use data. Primary data included ground control points, field validation data and forest resource use data.

  3. Library Resource
    Journal Articles & Books
    December, 2006
    India, Australia, Kenya, Africa, Eastern Africa

    The need to increase water productivity is a growing global concern as the World Commission on Water has estimated that demand for water will increase by c. 50% over the next 30 years and approximately half of the world's population will experience conditions of severe water stress by 2025. Three-quarters of African countries are expected to experience unstable water supplies, whereby small decreases in rainfall induce much larger reductions in streamflow.

  4. Library Resource
    Journal Articles & Books
    December, 2010
    Kenya

    Establishment of seasonal grazing enclosures has become an important rangeland rehabilitation strategy in semi-arid regions. This study assessed the impact of enclosure age and enclosure management on the vegetation composition in the Njemps Flats range unit, Lake Baringo Basin (Kenya). Six communal enclosures (13-23 years since establishment) and six private enclosures (3-17 years since establishment) were selected.

  5. Library Resource
    Conference Papers & Reports
    December, 2006
    Kenya

    Population pressures and the need to optimize the use of limited available land has led to increasing cropping affluence levels within the maize agro-ecologies in Kenya, and a shift from large to smallholder intensification and multiple cropping patterns. Using a geographic information system, this study relates cropping patterns, by area share, maize productivity and household incomes across maize agro-ecologies, with the purpose to establish a decision support system for optimizing land allocation and in priority setting for introduction of new technologies such as Bt maize varieties.

  6. Library Resource
    Conference Papers & Reports
    December, 2005
    Kenya

    Safe water is widely recognized as both a fundamental human need and a key input into economic activity. Across the developing world, the typical approach to addressing these needs is to segregate supplies of water for domestic use from water for large-scale agricultural production. In that arrangement, the goal of domestic water supply is to provide small amounts of clean safe water for direct consumption, cleaning, bathing and sanitation, while the goal of agricultural water supply is to provide large amounts of lower quality water for irrigated agriculture.

  7. Library Resource
    Journal Articles & Books
    December, 2014
    Kenya

    Water, forage and predation constrain ungulate distributions in savannas. To understand these constraints, we characterized distributions of 15 herbivore species from water, locations of peak density and degree of clustering around the peaks using zero-inflated count data models and mapping census data collected in the Mara reserve and the adjoining pastoral ranches in Kenya during a wet and dry year.

  8. Library Resource
    Journal Articles & Books
    December, 2014
    Kenya

    Kenya is home to many sacred natural sites, including forests, mountains and rivers. Indigenous communities have upheld their role and responsibilities, passed down over centuries by their ancestors as custodians of these places through time. The 5391 hectares in the Nyambene forest in central Kenya is a sacred site to the Ameru people, a community/tribe living on the northeastern slopes of Mt. Kenya. The forest is a resource from which customs, spiritual practices, and governance systems are derived to protect the territory as a whole and maintain its order, integrity and well-being.

  9. Library Resource
    Journal Articles & Books
    December, 2011
    Madagascar, Kenya, Africa

    Protected Areas (PAs) form a core component of efforts to conserve biodiversity, but are designated for a variety of reasons. We assessed the effectiveness of PAs in covering the ranges of 157 globally threatened terrestrial bird species in mainland Africa and Madagascar. To reduce commission errors, rather than using Extent of Occurrence (EOO) as a measure of distribution, we estimated the Extent of potentially Suitable Habitat (ESH) for each species within its EOO, using data on habitat preferences and land cover.

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