Research articles (ORI): Recent submissions
Now showing items 181-200 of 262
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Forecasting the spatial extent of the annual flood in the Okavango delta, Botswana
(Elservier, www.elsevier.com, 2004)The pristine Okavango Delta wetland of northern Botswana is potentially under threat due to water abstraction from its tributaries. We have developed a statistical model which makes it possible to predict the extent of ... -
Seed weight patterns of Acacia tortilis from seven seed provenances of Botswana
(John Wiley and Sons, http://www.wiley.com, 2005)Laboratory-based seed storage systems have been developed as an alternative to in situ conservation for indigenous woody plant species. However, interactions between seed quality and environmental variables must be known ... -
Community attitudes and perceptions towards urban ecological issues in Maun and Gaborone, Botswana
(Botswana Society, 2005)This paper is derived from a broader study that examined community attitudes and perceptions towards ecological issues in Maun and Gaborone to determine how these could be harnessed towards ecologically sustainable urban ... -
The economic contribution of safari hunting to rural livelihoods in the Okavango: The case of Sankuyo village
(Botswana Society, 2005)This study aimed at assessing the economic contribution of safari hunting to rural livelihoods in the Okavango Delta in Botswana, using Sankuyo village as a case study. This study was carried out between June and July ... -
Calcrete mapping and palaeo-envoronments in the Qangwa area, Northwest Botswana
(Botswana Society, 2005)Calcrete deposits of the Qangwa area, northwestern Botswana are evaluated on the basis of satellite imagery and sedimentological analysis. Enhanced Thematic Mapper imagery interpretation combined with field evidence has ... -
Soil carbon inventories and δ13C along a moisture gradient in Botswana
(John Wiley and Sons, www.wiley.com, 2004)We present a study of soil organic carbon (SOC) inventories and δ13C values for 625 soil cores collected from well-drained, coarse-textured soils in eight areas along a 1000 km moisture gradient from Southern Botswana, ... -
Using population parameters to separate fish stocks in the Okavango delta fishery: A preliminary assessment
(Botswana Society, 2005)Populations of three cichlid species from the upper and lower Okavango Delta were compared in terms of biological population parameters, in order to investigate whether the fish species of the Delta consist of one continuous, ... -
Prliminary assessment of the feeding ecology of silver catfish (Schilbe intermedius, Ruppel, 1832) in a seasonal floodplain of the Okavango delta
(Botswana Society, 2005)This study investigates the feeding ecology of Schilbe intermedius across its entire life history. Data were collected using experimental fishing nets in two habitats in a seasonal floodplain. The results showed that S. ... -
The dynamics of tourist visitation to national parks and game reserves in Botswana
(Botswana Society, 2005)Despite the existence of a model of the life cycle of tourist destinations (Butler, 1980, adapted by Prossor, 1994), non-beach tourist destinations are seldom subjected to an appraisal of their evolution and an assessment ... -
Household willingness to pay for reliability of water supply and quality in chobe suburb of Maun: An application of the contingent valuation method
(Botswana Society, 2005)Water supply in Maun is unreliable and unpredictable, and most households experience water shortage all year round. Coping strategies for households include water storage in tanks. Water quality is also poor due to its ... -
Seasonal variation in energy influxes and carbon dioxide exchange for a broad-leaved semi-arid savanna (Mopane woodland) in Southern Africa
(Blackwell publishing, www.blackwellpublishing.com, 2004)We studied the seasonal variation in carbon dioxide, water vapour and energy fluxes in a broad-leafed semi-arid savanna in Southern Africa using the eddy covariance technique. The open woodland studied consisted of an ... -
Preliminary land-use and land-cover mapping in the upper Okavango basin and implications for the Okavango delta
(Botswana Society, 2005)Image processing in the upper Okavango catchment resulted in ten generalised classes which may be used as base line data for monitoring future overall land-use/cover change assessments over the entire upper catchment. ... -
Prospects of basket production in promoting sustainable rural livelihoods in the Okavango Delta, Botswana
(John Wiley and Sons, http://www.wiley.com, 2004)This paper uses the concept of sustainable rural livelihoods and income diversification to assess the role that basket making as a cultural tourism activity can play in improving rural livelihoods in the Okavango Delta, ... -
The socio-cultural impacts of tourism development in the Okavango delta, Botswana
(Routledge, http://www.informaworld.com, 2004)The objective of this article is to assess the socio-cultural impacts of tourism development in the Okavango Delta, Botswana. This paper largely relied on the research work and reports by the author in the Okavango Delta ... -
Causes and possible solutions to water resource conflicts in the Okavango River Basin: The case of Angola, Namibia and Botswana
(Elsevier, www.elsevier.com, 2004)This paper reviews available literature concerning water resources use in the Okavango River Basin (ORB). It describes a number of common arguments regarding possibilities for the emergence of violent conflict in and among ... -
Relationship between small-scale structural variability and simulated vegetation productivity across a regional moisture gradient in southern Africa
(2011-11-23)The observed variability in vegetation structure within landscapes was used as the basis for model estimates of the range of annual productivity of landscape patches at four sites along a moisture gradient in southern ... -
Minerals that host metals at Dorowa Rock Phosphate Mine, Zimbabwe
(Bentham Open, 2010)This study set out to establish the major minerals at Dorowa and determine which of those are likely to host metals that may leach into surface and groundwater. This study comes after a preliminary assessment of the water ... -
Habitat utilization by impala (Aepyceros melampus) in the Okavango Delta
(Botswana Society, 2005)This paper presents preliminary results from a long-term study on the ecology of large herbivores in the Okavango Delta. The paper evaluates habitat selection and utilization by impala (Aepyceros melampus) at the various ... -
Biomass and leaf-level gas exchange characteristics of three African savanna C4 grass species under optimum growth conditions
(Blackwell, www.blackwell.co.uk, 2009-08)C4 savanna grass species, Digitaria eriantha, Eragrostis lehmanniana and Panicum repens, were grown under optimum growth conditions with the aim of characterizing their above- and below-ground biomass allocation and the ... -
A preliminary survey and analysis of the spatial distribution of aquatic invertebrates in the Okavango Delta, Botswana
(African Journal of Aquatic Science http://www.nisc.co.za/journals?id=2, 2006)The spatial distribution of aquatic macroinvertebrates in the Okavango River Delta, Botswana, was investigated during the low-water period in February 2003. This complements an earlier study undertaken during high-water ...