Author:Ferrar, AADate:1989This document contains the proceedings of a workshop which was convened to debate the ecological flow requirements of South African rivers. Topics which are discussed include the influence of weirs and impoundments, the quantity requirements ...Read more
Author:Du Toit, B; Gush, Mark B; Pryke, JS; Samways, MJ; Dovey, SBDate:Sep 2014In Chapters 4, 5 and 6 of this book, the authors discussed the production and procurement of biomass from various sources, including extensively managed systems such as woodlands, and much more intensively managed systems such as short-rotation ...Read more
Author:Zengeya, TA; Robertson, MP; Booth, AJ; Chimimba, CTDate:Jul 2013This study applied ecological niche models to determine the potential invasive range of Nile tilapia, Oreochromis niloticus, with a particular focus on river systems in southern Africa where it is now established and spreading. Computational ...Read more
Author:Gandar, MVDate:Nov 1983An annotated checklist is given of 60 species of Acridoidea which were found on the Nylsvley Nature Reserve. The density of a species may change greatly over small distances, altering the population species composition. Vegetation structure ...Read more
Author:O'Keeffe, JHDate:1986Ecological research on South African rivers has progressed in a number of phases. Until 1950 work was mainly taxonomic and descriptive, an essential prerequisite for more detailed studies. The realisation that South African rivers, a vital ...Read more
Author:Van Wyk, E; Breen, CM; Roux, DJ; Rogers, KH; Sherwill, T; Van Wilgen, BWDate:Jul 2006The legal requirement for an Ecological Reserve established in South Africa’s water law is commonly regarded by stakeholders as being in direct competition with the needs of humans. This has resulted in much debate and varying interpretations ...Read more
Author:Claassen, MariusDate:1999Environmental impact assessments in South Africa are usually conducted according to the integrated environmental management (IEM) procedure. The preliminary investigation reported here, indicated that most of the ecological requirements ...Read more
Author:Matsebe, GDate:Jul 2011Ecological sanitation (referred to in some countries as Ecosan) has been successfully implemented in both developed and developing countries such as Sweden, Germany, China, El Salvador, Mexico, Uganda and South Africa. Among others, three ...Read more
Author:Du Plessis, CDate:Oct 2009Many commentators suggests that in order to effect meaningful transformation of global development pathways, it is necessary to change the worldview that underlies the current development paradigm to a view that sees the world as a complex ...Read more
Author:Saidi, AT; Tshipala-Ramatshimbila, TVDate:2006The woodland is considered as an important part of the natural heritage of the local clan and has therefore been under a traditional woodland management regime. The involvement of the Department of Water Affairs and Forestry, with its emphasis ...Read more
Author:Olwal, TO; Montsi, L; Mofolo, M; Mekuria, FissehaDate:Sep 2013The ever rising demand for energy all over the world, following the dwindling of the fossil fuel resources and adverse effects on the climate change, has compelled the need to save energy and lower the cost of energy utilization in the wireless ...Read more
Author:De Lange, Willem J; Van Wilgen, BWDate:Jul 2010This study is a first attempt at a holistic economic evaluation of South African endeavours to manage invasive alien plants using biological control. The author’s focus was on the delivery of ecosystem services from habitats that are invaded ...Read more
Author:Steyn, Maronel; Maherry, A; Genthe, BettinaDate:Jul 2011This presentation highlights the economic burden of diarrhoea in the Olifants Water Management Area, South Africa. It concludes that water pollution prevention is cheaper than diarrhoea treatment.Read more
Author:McConnachie, AJ; De Wit, MP; Hill, MP; Byrne, MJDate:Sep 2003Azolla filiculoides (red water fern) is a floating fern native to South America which has invaded aquatic ecosystems in South Africa. Thick mats of A. filiculoides on dams and slow-moving water bodies cause economic losses to water-users. ...Read more
Author:Semelane, Maphumzane S; Nwulu, N; Kambule, N; Tazvinga, HDate:Feb 2021South Africa has developed one of the most successful renewable energy development programs in the world. However, the establishment of a South African solar Photovoltaic (PV) manufacturing localisation agenda has fallen behind. This study ...Read more
Author:Nahman, Anton; Godfrey, Linda KDate:2009This paper presents results from a survey of waste management authorities regarding the opportunities and constraints associated with the implementation of economic instruments for solid waste management in South Africa. Almost all respondents ...Read more
Author:Hall, G; Woodborne, SMDate:Nov 2010Several Middle Stone Age (MSA) site in southern Africa present evidence of environmental changes during Marine Isotope Stages (MIS) 4 and 3 between 70ka and 50ka. Of these, Sibudu Cave, KwaZulu-Natal, has yielded a detailed record of how ...Read more