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Now showing items 21-30 of 82
Dry Matter Biomass Productivity and Composition of Grasses along Grazing Gradient in Fenced and Unfenced Grazing Areas of the Gaborone North, Botswana.
(Insight Medical Publishing, 2017-07-24)
Objective: The present study was aimed at assessing and comparing grass species composition and biomass productivity along fenced and unfenced grazing gradient.
Methods: For each study area 2 × 1000 m transects radiating ...
Response of Aspen Suckers to Simulated Browsing.
(Oxford Academic, 2014-04-02)
Heavy and repeated ungulate browsing on reproductive suckers has limited quaking aspen (Populus tremuloides Michx.) regeneration on many Western landscapes. However, little is known about the specific effects of season and ...
Fish, Floods, and Ecosystem Engineers: Aquatic Conser- vation in the Okavango Delta, Botswana.
(American Institute of Biological Sciences, 2009-01-01)
The Okavango Delta, Botswana, is a major wetland surrounded by the Kalahari Desert. The delta supports a diverse fish fauna that depends on highly seasonal flooding from inflowing rivers, and on the actions of ecosystem ...
Evaluating bank technical efficiency in SADC region.
(Elsevier Ltd, 2024-03-30)
Efficiency is generally defined as the capacity to deliver desirable results with little effort or input. A bank cannot afford to allocate limited resources at random in a competitive market. Only once the efficiency factors ...
The impact of tobacco (Nicotiana tabacum) farming on the survival of honeybees (Apis mellifera) in Nyamakate Communal Area, northern Zimbabwe.
(Taylor & Francis Online, 2022-05-31)
The impact of tobacco (Nicotiana tabacum) farming on the survival of honeybees (Apis mellifera) was investigated through the documentation of mortality of honeybees, the number of trees cut and planted, and agrochemicals ...
Spatial and temporal variations of microinvertebrates across temporary floodplains of the lower Okavango Delta, Botswana
(Elservier, 2011-08-06)
The connectivity of the Okavango Delta to its temporary floodplains may reduce due to threats of increasing human water demands and climate change. Microinvertebrates in aquatic systems have a regulatory effect on juvenile ...
Classical fisheries theory and inland (floodplain) fisheries management; is there need for a paradigm shift? lessons from the Okavango Delta, Botswana
(Fisheries and Aquaculture Journal, 2014-07-29)
This paper reviews the fisheries management question of inland (floodplain) systems in the developing world and proposes a paradigm shift in approach. Inland fisheries management is largely based on classical fisheries ...
A Review of Habitat and Distribution of Common Stingless Bees and Honeybees Species in African Savanna Ecosystems.
(Sage Journals, 2022-05-03)
Background and Research Aims: Globally, concerns over a decline in insect pollinator abundance have been raised. Although bees were noted to be key pollinating agents for approximately 52 of the leading 115 global food ...
The Effects of Monthly Rainfall and Temperature on Flowering and Fruiting Intensities Vary within and among Selected Woody Species in Northwestern Ethiopia. Forests.
(MDPI, 2023-03-10)
The phenological responses of plants to climatic variables are critical for conservation planning; however, it is less understood in an Afrotropical context. Here, we observed how flowering and fruiting phenophases of seven ...
Potential impacts of biofuel development on food security in Botswana: A contribution to energy policy.
(Elsevier, 2012-01-20)
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 ...