Browsing Okavango Research Institute (ORI) by Title
Now showing items 162-181 of 261
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Pollution implications of Save River water from weathering and dissolution of metal hosting minerals at Dorowa phosphate mine, Zimbabwe
(Elsevier. http://www.elsevier.com, 2010-08-20)The study set out to determine the weathering and dissolution of metal hosting minerals at Dorowa for purposes of deducing pollution potential to the nearby Save River. Phosphate rock is mined at Dorowa for the production ... -
Poor performance in the advanced level geography: a case of four high schools in Hurungwe District, Mashonaland West Province, Zimbabwe
(Lonaka Journal of Learning and Teaching; http://journals.ub.bw/index.php/jolt, 2017-12-06)The study investigates the causes of high failure rate in Advanced level Geography in four high schools in Hurungwe district, Zimbabwe. A multi-stage procedure was used to sample a total of 4 high schools, 100 high school ... -
The population structure of riparian tree species in the Okavango Delta, Botswana: 50 years of independence and conservation
(Botswana Notes and Records; http://journals.ub.bw/index.php/bnr/, 2017-07-05)Riparian woodlands in the Okavango Delta play a significant role of removing salts from surface water through transpiration. This function renders surface water healthy to drink by wildlife and the people. Despite their ... -
Population structure, species composition and distribution of riparian woody plant communities in the Okavango Delta, Botswana
(University of Botswana; www.ub.bw, 2016-09)There is limited information on the species composition and distribution, population structure and dynamics and the underlying environmental controls of riparian woodland communities in the Okavango Delta. This study aimed ... -
Post-fire succession on savanna habitats in the Okavango Delta wetland, Botswana
(Cambridge University Press, https://www.cambridge.org/, 2007-10-29)Drying floodplains that were not inundated for more than 10 y were investigated to relate plant species and vegetation structure to time-since-fire for the southern Okavango Delta wetland in Botswana. The aims of the ... -
Potential ecological factors contributing to springbok (Antidorcas marsupialis) population declines in the southern Kalahari, Botswana
(University of Botswana, www.ub.bw, 2019-06)The springbok (Antidorcas marsupialis) population in the southern Kalahari, Botswana has declined precipitously in recent years, but the primary causes of this decline are not known. Springbok play an important role ... -
Potential impacts of biofuel development on food security in Botswana: A contribution to energy policy
(Elsevier, www.elsevier.com/locate/enpol, 2012-04)Biofuel development continues to be a critical development strategy in Africa because it promises to be an important part of the emerging bio-economy. However, there is a growing concern that the pattern of biofuel development ... -
Predictors of knowledge-sharing behaviors among community based natural resources organisations in the Okavango Delta, Botswana
(Sage, www.sage.com, 2013-01-23)The study investigated the relative contribution of selected predictors of knowledge-sharing behaviors among local community leaders involved in natural resources management programs within the Okavango Delta, Botswana. ... -
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. ... -
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 ... -
Pressurized hot water extraction coupled to molecularly imprinted polymers for simultaneous extraction and clean-up of pesticides residues in edible and medicinal plants of the Okavango Delta, Botswana
(De Gruyter, http://www.degruyter.com/, 2013-10-08)In this study, an in-cell extraction and clean-up approach, employing pressurized hot water extraction (PHWE) coupled to a molecularly imprinted polymer (MIP) is proposed. The selectivity of PHWE was improved through the ... -
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. ... -
Probit analysis of factors influencing rural employment promotion in southern Nigeria
(Emerald Insight, http://www.emeraldinsight.com, 2012)Poverty, inequality and unemployment challenges need to be adequately addressed if sustainable human development is to be achieved. Although, these key issues are not mutually exclusive, the thrust of this paper is to ... -
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, ... -
Regeneration of seven indigenous tree species in a dry Afromontane forest, southern Ethiopia
(Elsevier, www.elsevier.com, 2010)Regeneration of seven indigenous tree species having significant ecological and economic importance was investigated in the Munessa-Shashemene dry Afromontane forest (MSF), southern Ethiopia. Densities and distributions ... -
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 ... -
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 ... -
The relevance of fire frequency for the floodplain vegetation of the Okavango Delta, Botswana
(Wiley, https://onlinelibrary.wiley.com, 2007)The study investigates the relevance of fire frequency for the floodplain vegetation of the Okavango Delta in Botswana, considering species composition, species richness, vegetation structure and tree density. Based on ... -
Remote sensing-derived hydroperiod as a predictor of floodplain vegetation composition
(Springer Link; https://link.springer.com, 2014-02-13)Characterising hydroperiod and vegetation for flood-pulsed wetlands is a critical first step towards understanding their ecology. In large, data-poor wetlands such as Botswana’s Okavango Delta, quantifying hydrology and ... -
Remotely sensed habitat indicators for predicting distribution of impala (Aepyceros melampus) in the Okavango Delta, Botswana
(Cambridge University Press, www.cambridge.org, 2006)We studied the spatial and temporal habitat use of impala in Botswana’s Okavango Delta at landscape level with the aid of satellite imagery, with minimal fieldwork. We related remotely sensed vegetation to impala habitat ...