Okavango Research Institute (ORI): Recent submissions
Now showing items 221-240 of 262
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The tropical African mercury anomaly:lower than expected mercury concentrations in fish and human hair
(Elsevier, 2011)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 ... -
Functional conservation areas and the future of Africa's wildlife
(Wiley, 2010-11)Ungulate populations in African conservation areas (CAs) are in widespread decline, which can largely be attributed to a lack of functionality of the area encompassed by the CAs themselves. We present evidence from a wide ... -
Satellite based long-term assessment of rangeland condition in semi-arid areas: an example from Botswana
(Elsevier, 2010-12-14)A methodology was devised for comparison of generalised range condition over time, irrespective of the nature of original imagery used. It was applied for range condition change mapping throughout Botswana through 1984-2000. ... -
Relative effects of visualized and verbal presentation methods in communicating environmental information among stakeholders: Okavango Delta, Botswana
(http://www.informaworld.com, 2011-04-12)The present study examined the relative effectiveness of 2 public instructional communication methods in improving selected predictors of knowledge-sharing behaviors among communities in the Okavango Delta, Botswana. A ... -
Communicating in the public sphere: attitudes toward different public instructional communication methods
(Taylor & Francis, 2011-02-18)An effective response to global environmental challenges requires analysis of communication patterns, processes and approaches. In addition, improving communication through emerging information and communication technologies ... -
Global monitoring of wetlands - the value of ENVISAT ASAR Global mode
(Elsevier, 2008-03-17)This paper elaborates on recent advances in the use of ScanSAR technologies for wetland-related research. Applications of active satellite radar systems include the monitoring of inundation dynamics as well as time series ... -
The Okavango: whose Delta is it?
(Elsevier, 2009-07-15)The Okavango Delta is amongst the largest Ramsar sites (http://www.ramsar.org/sitelist.pdf) in the world and an important wetland for community livelihoods, conservation and tourism in Botswana. Over the years, the utilization ... -
The Okavango: whose Delta is it?
(Elsevier www.elsevier.com/locate/pce, 2009)The Okavango Delta is amongst the largest Ramsar sites (http://www.ramsar.org/sitelist.pdf) in the world and an important wetland for community livelihoods, conservation and tourism in Botswana. Over the years, the ... -
Constraints and potentials of the fish market in the Okavango Delta, Botswana
(Academic Journals, 2010-12-04)The Okavango Delta is the largest multi-species and multi-gear fishery in Botswana. However, there is lack of an understanding of the nature of fish market in the Delta. The objectives of the survey were (1) to identify ... -
Impact on water quality of land uses along Thamalakane-Boteti River: an outlet of the Okavango Delta
(Elsevier, 2008-07-08)Botswana is a semiarid country and yet has one of the world’s famous wetlands: the Okavango Delta. The Thamalakane- Boteti River is one of the Delta’s outlets. The water quality of the Thamalakane-Boteti River was ... -
Land-use and resource conflicts in the Okavango Delta, Botswana
(Wiley, 2009)This study assesses land-use conflicts in the Okavango wetland ecosystem. A survey of the livelihood activities of a sample of four villages has been carried out and a stakeholder approach used to identify and analyse the ... -
Deltamethrin in sediment samples of the Okavango Delta, Botswana
(South African Water Research Commission http://www.wrc.org.za, 2006)Deltamethrin concentrations were determined in 35 sediment samples collected from three different habitats: channel, lagoon and pool sites from Xakanaxa in the Okavango Delta, NW Botswana. The samples were Soxhlet-extracted ... -
Effects of global positioning system collar weight on zebra behavior and location error
(Wildlife Society http://joomla.wildlife.org/index.php?option=com_content&task=view&id=43, 2008)Global Positioning System (GPS) collars are increasingly being used to study fine-scale patterns of animal behavior. Previous studies on GPS collars have tried to determine the causes of location error without attempting ... -
Grazers species-packing in the Okavango Delta, Botswana
(Willey Blackwell Publishing http://eu.wiley.com/WileyCDA/Brand/id-35.html, 2007)We used body weight ratio to determine the degree of species-packing of the Okavango Delta (22,000 km2) grazers and compared it to that of four conservation areas of similar sizes but varying in the diversity of habitat ... -
Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial-interglacial cycle
(Elsevier, 2010-01-11)Multi-proxy analyses on core JO2004-1 recovered from Lake Ohrid (40°55.000 N, 20°40.297E, 705 m a.s.l.) provide the first environmental and climate reconstruction in a mountainous area in Southern Europe over the last ... -
Groundwater investigation in semi-arid developing countries, using simple GIS tools to facilitate interdisciplinary decision making under poorly mapped conditions: The Boteti area of the Kalahari region in Botswana
(Elsevier www.elsevier.com/locate/jag, 2007)Locating additional long-term groundwater resources in semi-arid regions of developing countries with growing populations is an expensive undertaking. Simple geographic information system (GIS) techniques can be utilised ... -
HIV/AIDS, artisanal fishing and food security in the Okavango Delta, Botswana
(Elsevier www.elsevier.com/locate/pce, 2007)Generally, rural households pursue all year round natural and non-natural resource-based livelihood systems to diversify these options in order to cope with risks emanating from a range of shocks and stressors. Artisanal ... -
Effects of annual flooding on dissolved organic carbon dynamics within a pristine wetland, the Okavango Delta, Botswana
(The Society of Wetland Scientists, 2005)In the Okavango Delta in Botswana, dissolved organic matter (DOM) transport is controlled by the slow movement of an annual flood ‘pulse’ across permanently and seasonally flooded wetlands, known respectively as the ... -
Communicating integrated water resources management: From global discourse to local practice – Chronicling an experience from the Boteti River sub-Basin, Botswana
(Elsevier, www.elsevier.com/locate/pce, 2008)The Boteti River is an ephemeral outflow of the Okavango River. It lies in the north-western part of Botswana where about 25,000 people reside across a number of widely scattered villages and informal settlements. The ... -
Community-based tourism ventures, benefits and challenges: Khama Rhino Sanctuary Trust, Central District, Botswana
(Elsevier, www.elsevier.com/locate/tourman, 2010)The impact of Community-Based Natural Resource Management (CBNRM) is seen by many as a ‘win-win’ situation with reference to natural resources conservation and the improvement of local communities’ livelihoods. However, ...