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Spatial and temporal variations of microinvertebrates across temporary floodplains of the lower Okavango Delta, Botswana
(Elservier, 2011-08-06)
The connectivity of the Okavango Delta to its temporary floodplains may reduce due to threats of increasing human water demands and climate change. Microinvertebrates in aquatic systems have a regulatory effect on juvenile ...
Effects of different silage preservatives on silage quality of pennesitum purpureum harvested at different harvesting periods.
(Scienceline Publishers, 2011)
The study was conducted to determine the effects of preservatives on the chemical composition of elephant grass (P. purpureum Bana cv.) harvested from N-fertilized and unfertilized treatments at different periods (3, 6 and ...
The tropical African mercury anomaly: Lower than expected mercury concentrations in fish and human hair.
(Elsevier, 2011-02-20)
Mercury is a neurotoxin and global pollutant, and wetlands and newly flooded areas are known to be sites of enhanced production of monomethylmercury, the form of mercury that is readily biomagnified in aquatic food chains ...
Changes in herbaceous species composition in the absence of disturbance in a cenchrus biflorus roxb. Invaded area in Central Kalahari Game Reserve, Botswana
(Hindawi Publishing Corporation, 2011-04-12)
A-nine year study was carried out to investigate changes in herbaceous species composition in an area invaded by Cenchrus biflorus Roxb, an exotic invader grass species. The study ensued termination of livestock and human ...
Indigenous knowledge, livelihoods and government policy in the Okavango Delta, Botswana
(Nova Science Publishers, 2011)
Communities in and around the Okavango Delta are still highly dependent on natural resources, and indigenous knowledge pertaining to the use and management of these resources has helped sustain both people‟s livelihoods ...
POISONOUS PLANTS IN GARDENS AND GRAZING LANDS.
(Science-line Publishers, 2011)
This paper is a review of poisonous plants, their toxic agents and the symptoms of
poisoning. Poisonous plants are plants, which as a whole or part thereof under all or certain
conditions and in amount likely to be taken ...