Browsing by Title
Now showing items 696-715 of 717
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A vaccination model for COVID-19 in Gauteng, South Africa
(KeAi Communications Co., 2022-09)The COVID-19 pandemic provides an opportunity to explore the impact of government mandates on movement restrictions and non-pharmaceutical interventions on a novel infection, and we investigate these strategies in early-stage ... -
Validation and Reproducibility of a Food Frequency Questionnaire for use among Adults in Botswana.
(Cambridge University Press, 2012-11-01)Objective: To evaluate the validity and reproducibility of a 122-item interviewer-administered quantitative FFQ developed to determine food and nutrient intakes of adults in Botswana. Design: Relative validity of the FFQ ... -
Value-addition of cereal crop residues using low technology oyster mushroom (pleurotus spp.) production to improve small-scale farmers’ income and nutrition in Botswana
(Botswana University of Agriculture and Natural Resources, 2019-08)The average cereal grain yields for Botswana small-scale farmers is 108kg/ha with gross income of P233.95/ha, respectively. The low yields are due to frequent droughts and pest outbreaks resulting in food and nutrition ... -
Variation in ground dwelling insect assemblages on five habitats at Sebele content farm in Gaborone, Botswana.
(Indian Journals, 2012-09-15)A study was conducted at Sebele content Farm in Gaborone, botswana to investigate the effects of different agricultural land uses on species richness, diversity and abundance of ground dwelling insects. The agricultural ... -
Vegetation and soil conditions around water points in ranching and communal grazing systems in the hard veld and sandveld of Botswana
(Botswana University of Agriculture & Natural Resources, 2017-05)Artificial water sources or boreholes were introduced in Botswana to mitigate surface water scarcity in rangelands and aid livestock production. Gradually piospheres were observed, areas close to water points experienced ... -
Vegetation and soil moisture responses following three big sagebrush control methods
(University of Wyoming, 1986-05) -
The vegetation and wildlife habitats of the Savuti-Mababe-Linyanti ecosystem, northern Botswana.
(Sabinet African Journals, 2017-05-23)This study classified the vegetation of the Savuti-Mababe-Linyanti ecosystem (SMLE), northern Botswana and developed a detailed map that provides a reliable habitat template of the SMLE for future wildlife habitat use ... -
Vegetation patterns and nutrients in relation to grazing pressure and soils in the sandveld and hardveld communal grazing areas of Botswana.
(Taylor & Francis Online, 2009-11-12)A major challenge confronting managers of extensive grazing systems is uneven use of herbaceous forage plants by livestock. The concentration of grazing in preferred areas or around foci points (e.g., water points) eventually ... -
Wastewater treatment using vegetated submerged bed constructed wetlands for nitrogen removal
(Washington State University, 2006-12)Vegetated submerged bed (VSB) constructed wetlands are engineered, low operation and maintenance cost wastewater and stormwater treatment technologies primarily designed for small facilities. The objectives of this ... -
Water abstraction of invasive Prosopis juliflora and native Senegalia senegal trees: A comparative study in the Great Rift Valley Area, Ethiopia
(Elservier, 2023)Besides direct water abstraction, natural water scarcity in semi-arid and arid regions may be further exacerbated by human-assisted changes in vegetation composition, including the invasion by non-native plant species. ... -
Wet deposition of 210Pb aerosols over two areas of contrasting topography
(Institute Of Physics Publishing Ltd, 2006-11-24)Deposition fluxes of 210Pb on low and moderately high-elevation sites of Edinburgh (Scotland) and mid-Wales, respectively, have been measured. The excess 210Pb fluxes in moorland Edinburgh soils did not vary significantly ... -
Wheat (Triticum aestivum L.) yields and protein profiles under varying plant densities, nitrogen doses and planting time in Botswana
(Botswana University of Agriculture & Natural Resources, 2020-02)Field studies were conducted at the Botswana University of Agriculture and Natural Resources, Sebele, Gaborone, to determine the effects of planting densities, nitrogen application rate, and planting time, on two wheat ... -
When the order matters: Impacts of lignin removal and xylan conformation on the physical structure and enzymatic hydrolysis of sugarcane bagasse
(Elsevier, 2022-06)Dilute acid and alkaline pretreatments are commonly used to fractionate lignocellulosic biomass for its conversion into biofuels and renewable materials. In the current work, we compare the structure and morphology of one ... -
“Where there is water there is fish” – Small-scale inland fisheries in Africa: dynamics and importance
(2015)The importance of fish, and in particular small fish, for sustainable and healthy livelihoods in Africa, as well as their strong relationship with climate driven water dynamics are generally undervalued and little understood ... -
Wildfire prediction and monitoring in the rangeland areas of Botswana: a case study of Kgalagadi district
(Botswana University of Agriculture & Natural Resources, 2023-01)Fire is a critical tool for managing rangeland ecosystems, particularly in the savannah. However, the increasing wildfire occurrence poses a considerable danger to rangeland ecosystem continuity. Burned area extent and ... -
Wildfires in Botswana and Their Frequency of Occurrence
(Scientific Research Publishing, 2021-09-13)Fires play an essential part in the maintenance of the environment, but am- plified fire activity often leads to adverse effects in the environment such as destruction of property and loss of life. Botswana has experienced ... -
Wildlife-livestock interface, veterinary cordon fence damage, lack of protection zones, livestock theft and owner apathy: Complex socio-ecological dynamics in Foot and Mouth disease control in southern Africa
(Springer Open, 2016-10-26)Current efforts to control and possibly eradicate the highly contagious and economically important Foot and Mouth disease (FMD) in Botswana are hampered by numerous inextricably linked constraints. These constraints were ... -
Wind dispersed tree species have greater maximum height.
(John Wiley and Sons Inc, 2024-06-14)Aim: We test the hypothesis that wind dispersal is more common among emergent tree species given that being tall increases the likelihood of effective seed dispersal. Location: Americas, Africa and the Asia-Pacific. Time ... -
Woodland resources and management in southern Africa.
(Klaus Hess Publishers, 2018)The countries of southern Africa have an average forest cover of 32% with most forest situated in the tropics. These dry to moist forests are deciduous with a few evergreen species. The open canopy allows enough light to ... -
Working horses welfare assessment and their owners perceive in middle and north Darfur states Sudan
(Elservier, 2022-07-09)Working horses in Low and Middle income countries have a significant impact on people’s lives. In spite of their best, the well-being of Sudanese working horses are neglected. There is no information on Sudanese ...
