September 2010
Alien plant invasion and their impact on indigenous species diversity at global scale: A review
Plant invasion is a potent threat to the species diversity around the world during the 21stcentury after habitat loss. Plant invasions are human introduced or of natural means like winds, birds, animals, water. It affects indigenous species diversity, soil ecology and dynamics and economics of agricultural ecosystem throughout the world. If this process of biological invasion is remained continuous for years to...
September 2010
Harvesting and marketing of Gnetum species (Engl) in Cameroon and Nigeria
The harvesting and marketing of Gnetum africanum and Gnetum bucholzianum (Engl), a major Non-Timber Forest Product (NTFP) in West and Central Africa, was carried out between 2002 - 2008, with the objective of examining the production and marketing ofGnetum species and their economic contributions to the economies of Cameroon and Nigeria and that of West and Central Africa at large. Besides...
September 2010
Ecology and behavior of the estuarine dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Sepetiba Bay, South-eastern Brazil
The dynamics of habitat utilization by Sotalia guianensis has been investigated. Between January 1997 and May 1998, 145 h of direct observations were made from a fixed location at Ponta do Zumbi on Marambaia Island, and 249 groups of dolphins were sighted. Initial and final times of the observation, approximate location, presence of calves, activities performed by the dolphins and prevailing weather conditions were...
September 2010
‘Traditional religion and natural resources’: A reflection on the significance of indigenous knowledge systems on the utilisation of natural resources among the Ndau people in South-eastern Zimbabwe
The depletion of natural resources is one of the greatest challenges with far reaching consequences if sustainable environmental management programmes are not properly put into practice in Zimbabwe. The major contending issue, however, is how the exigency of sustainable environmental management can be contextualised in light of the local indigenous knowledge systems. Although literature is abound on the recommended...
