Browsing Okavango Research Institute (ORI) by Title
Now showing items 177-196 of 261
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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 ... -
Responding to climate change through joint partnership: insights from the Okavango Delta in Botswana
(Emerald, www.emeraldinsight.com, 2014)Purpose: Climate change continues to pose a serious challenge to mankind. Given their socio-economic and vulnerable situations, resource-poor farmers will be hard hit and likely to be the most affected group in Africa – ... -
Response of a seasonal floodplain vegetation communities and soil nutrient status to flood variation in the Okavango Delta, Botswana
(University of Botswana; www.ub.bw, 2013-05)Globally many seasonal floodplain ecosystems experience flooding regime variation leading to variation in vegetation community composition and distribution and soil nutrient status. The Okavango Delta natural flooding ... -
Results from the EO-1 experiment - A comparative study of Earth Observing-1 Advanced Land Imager (ALI) and Landsat ETM+ data for land cover mapping in the Okavango Delta, Botswana
(Taylor & Francis; http://www.tandf.co.uk/journals/titles/01431161.asp, 2005-10)The Earth Observing-1 (EO-1) satellite acquired a sequence of data in 2001 and 2002 that highlighted the annual flooding of the lower Okavango Delta. The data were collected as part of the calibration/validation programme ... -
A review of customary and statutory water management institutions in Botswana and Zimbabwe
(University of Botswana, www.ub.bw, 2019-05-13)The role of institutions (indigenous or modern) in the management of water resources cannot be overemphasised. This paper is a review of literature on customary and statutory water resource management institutions in ... -
A review of the freshwater diversity in the Okavango Delta and Lake Ngami 1 (Botswana): taxonomic composition, ecology, comparison with similar 2 systems and conservation status
(Springer Link, https://www.springer.com/journal/27/, 2023-10-11)Freshwater organisms in the Okavango Delta and Lake Ngami (Botswana) provide direct and indirect benefits to people and the economy of the region. However, their existence could be potentially threatened by human activities ... -
A review of the sustainability of Jatropha cultivating projects for biodiesel production in Sothern Africa: implication for energy policy in Botswana
(Science Direct, https://www.sciencedirect.com, 2017-06-09)Jatropha curcas L. biofuel development is considered a strategy for achieving energy security, climate change mitigation, foreign exchange savings and economic development. This paper reviews the experiences of some southern ... -
Rival group scent induces changes in dwarf mongoose immediate behavior and subsequent movement
(Behavioral Ecology, https://academic.oup.com/beheco, 2016-05-15)In many social species, groups of animals defend a shared territory against rival conspecifics. Intruders can be detected from a variety of cues, including fecal deposits, and the strength of response is expected to vary ... -
The role of vegetation in the Okavango Delta silica sink
(Springer Link; https://link.springer.com, 2014-12-16)We assessed the role of vegetation and hydrology in the Si cycle in the Okavango Delta. Our results show a large storage of biogenic Si (BSi) in vegetation and the sediments. The biological storage is among the highest ... -
Rural livelihood diversification: a household adaptive strategy against flood variability in the Okavango delta, Botswana
(Agrekon, www.aeasa.org.za, 2012)This paper assesses the role of livelihood diversification in household adaptation to flood variability in the Okavango Delta, and locates it within the global discourse on adaptation to climate variability and change in ... -
Rural livelihoods and community local knowledge of risk of malaria transmission in the Okavango Delta, Botswana
(Botswana Society; http://journals.ub.bw/, 2017)The Okavango Delta in north-western Botswana is a malaria endemic area. Most livelihood activities in this area are seasonal, usually coinciding with malaria season (November-April). The objective of this paper is to assess ... -
Sap flow variation in selected riparian woodland species in the Okavango Delta, Botswana
(Wiley, https://onlinelibrary.wiley.com, 2017-04-28)In the tropical Okavango Delta, transpiration by trees is an important process partly responsible for maintaining the basin as a freshwater environment. Quantification of evapotranspiration from terrestrial landforms of ... -
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. ... -
Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana
(Elservier, www.elsevier.com, 2006)Changes in hydrological inputs to the flood-pulsed Okavango Delta result in changes in such flooding characteristics as floodplain water depth, inundation duration and frequency. A mathematical model is used to assess ... -
Science, social scientisation and hybridisation of knowledges
(Taylor & Francis Online, https://www.tandfonline.com, 2019-07-27)The contestation between mainstream science and counter-science is a longstanding phenomenon. The current issue of Science as Culture addresses the need for scientists to consciously engage in a broad-spectrum science that ... -
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 ...