Okavango Research Institute (ORI): Recent submissions
Now showing items 161-180 of 262
-
Groundwater fluoride levels in villages of Southern Malawi and removal studies using bauxite
(Academic Journals, http://www.academicjournals.org/ijps, 2008) -
The Southern African Regional Science Initiative (SAFARI 2000): wet season campaigns
(Wageningen Institute for Environment and Climate Research, http://library.wur.nl/, 2002)The Southern African Regional Science Initiative (SAFARI 2000) involved two wet season and one dry season field campaigns. This paper reports on the wet season campaigns. The first was conducted at five sites along the ... -
Looking for progenitors: a molecular approach to finding the origins of an invasive weed
(Kluwer Academic Publishers, http://www.springerlink.com, 2002-11-28)One of the major problems in determining the origin of invasive species is that often their arrival is unnoticed. Only when population levels increase is their presence noticed but by this time determining the point of ... -
Woody vegetation resource changes around selected settlement along aridity gradient in the Kalahari, Botswana
(Elsevier Science Ltd, http://www.elsevier.com/locate/cag, 2002-07-22)This paper investigated changes in economically important woody vegetation resources around seven settlements located along an aridity gradient in the Kalahari. Available data at different rainfall levels were analysed ... -
Temperature-Emissivity separation with ASTER and LANDSAT 7 validation on the fringe of the Okavango Delta, Botswana
(SPIE, http://link.aip.org, 2004)Land surface temperatures are important in global change studies, in estimating radiation budget, heat balance studies and as control for climate models. Several algorithms for estimating land surface temperature and ... -
Spatial and temporal land cover changes in the Simen Mountains National park, a world heritage site in Northwestern Ethiopia
(MDPI Publishing; www.mdpi.com, 2011-01-05)The trend of land cover (LC) and land cover change (LCC), both in time and space, was investigated at the Simen Mountains National Park (SMNP), a World Heritage Site located in northern Ethiopia, between 1984 and 2003 using ... -
Status of native woody species diversity and soil characteristics in an exclosure and in plantations of Eucalyptus globulus and Cupressus lusitanica in Northern Ethiopia
(BioOne, www.bioone.org, 2011-05)Exclusion of grazing animals and tree plantations are 2 methods that have been used for restoration of degraded lands in tropical semiarid areas. These 2 options can foster secondary forest succession by improving soil ... -
State interests and multilateral cooperation: thinking strategically about achieving 'wise use' of the Okavango Delta system
(Elsvier, www.elsevier.com, 2003)This paper explores possibilities for achieving 'wise use’, defined as the sustainable utilization of resources of the Okavango Delta system, within the framework of the Ramsar Convention on Wetlands of International ... -
More woody plants? the status of bush encroachment in Botswana's grazing areas
(ScienceDirect, www.sciencedirect.com, 2002)the cattle-dominated grazing areas of Botswana. Bush encroachment species – for instance Acacia tortilis, A. erubescens, A. mellifera, Dichrostachys cinerea, Grewia flava, and Terminalia sericea –are increasing in cover ... -
Importance of nitrogen fixation in soil crusts of southern African arid ecosystems: acetylene reduction and stable isotope studies
(Elsvier, www.elsevier.com, 2003)Cyanobacterial soil crusts may be important in arid and semi-arid ecosystems because of their ability to fix atmospheric nitrogen (N2). These crusts are very sensitive to trampling by animals, and their destruction can ... -
Water flow dynamics in the Okavango River Basin and Delta - a prerequisite for the ecosystems of the Delta
(Elsvier, www.elsevier.com, 2003-09-08)As part of the EU-funded project ‘Water and Ecosystem Resources in Regional Development––Balancing Societal Needs and Wants and Natural Resources Systems Sustainability in International River Basin Systems’ (WERRD) ... -
Community based natural resource management and social sustainability in Ngamiland, Botswana
(Botswana Society, http://www.botsoc.org.bw, 2005)This paper examines the impact of Community-Based Natural Resource Management (CBNRM) in Ngamiland over the past ten years. It shows that CBNRM has made some strides in strengthening and creating new organisations/ ... -
The effects of tourism development on rural livelihoods in the Okavango Delta, Botswana
(Routledge (Taylor & Francis) www.routledge.com, 2010-01-19)The Community-Based Natural Resource Management (CBNRM) program in Botswana aims to achieve biodiversity conservation and rural development in rich biodiversity areas like the Okavango Delta. CBNRM assumes that if rural ... -
Early maps of Ngamiland and the Okavango delta
(Botswana Society, http://www.botsoc.org.bw, 2005)During the years 1849 to 1900 the first maps of (portions of) the Okavango Delta region in Ngamiland were produced by missionaries, explorers, travellers and adventurers. Considerable progress was made from the first ... -
Aspects of seasonal dynamics of flooding in the Okavango delta
(Botswana Society, 2005)Seasonal changes in inundation area and peak flood occurrence in the Okavango Delta are analysed using a multiple regression technique. The multiple regression models developed constitute useful and simple tools for ... -
HIV/AIDS, intra-family resources capacity and home care in Maun, Botswana
(Botswana Society, 2005)Home care involves the transfer of a patient’s medical supervision from a formal institution to a family setting in the context of a community. The aim of this paper is to assess the resource capacity of families to provide ... -
HIV/AIDS, home care and human waste disposal in Botswana
(Botswana Society, 2005)Batswana have been hard-hit by the HIV/AIDS pandemic. The Botswana government has initiated the Community Home-Based Care programme to provide material support for HIV/AIDS patients cared for at home by family members ... -
Spatial and seasonal variation of major cation and selected trace metal ion concentration in the Okavango-Maunachira-Khwai channels of the Okavango delta
(Botswana Society, 2005)The concentration of the metal ions Na, K, Ca, Mg, Zn, Cu, Mn, Co, Fe, Cr, Ni, and Pb were determined in water samples of the Okavango Delta’s panhandle - Maunachira-Khwai water system during periods of high (June 2004) ... -
Islands in the Okavango delta as sinks of water-borne nutrients
(Botswana Society, 2005)Groundwater under islands in the Okavango Delta is a known sink of inorganic dissolved minerals, preventing salinisation of this virtually enclosed evaporation-dominated hydrological system. The Okavango Delta is an ... -
The impact of extreme flooding of the okavango river on the livelihood of the molapo farming community of Tubu village, Ngamiland Sub-district, Botswana
(Botswana Society, 2005)This paper presents the results of a study carried out on the impact of the recent (2004) severe flooding of the Okavango River on the livelihood of the molapo (flood recession) farming community of Tubu village in Ngamiland ...