Browsing by Author "Williams, Samantha"

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    Perceptions of wetland ecosystem services in a region of climatic variability
    (University of the Western Cape, 2018) Williams, Samantha; Grenfell, Suzanne; Carolissen, Mandy
    Wetlands provide various ecosystem services such as provisioning, regulating, supporting, and cultural services which may be directly or indirectly beneficial to humans. The manner in which such wetlands are managed is partly determined by human perceptions of their value. However, climatic variability and climate change put the continued provision of such ecosystems under stress. The result is that certain ecosystem services may be provided to differing extents during anomalously wet or dry years. There is thus uncertainty as to the values ascribed to wetlands by people during varying climatic phases. This thesis focuses on understanding how people perceive the functioning of wetlands within our current climate against a background of climatic variability and climate change. This study explores people�s perceptions regarding the functioning of wetlands and ecosystem services provided during dry and wet years, as an indication of how climatic variability and climate change impact peoples� perceptions. The data was collected in the wetlands of the Agulhas Plain in the Nuwejaars Catchment. Five wetlands classified and scored using the WETEcoServices tool. In addition, five semi-structured interviews and three participatory mapping exercises with landowners were also undertaken. The study reports on the landowners� awareness of wetland ecosystems, ecosystem services and climatic variability and climate change. Provisioning, supporting, and cultural ecosystem services are frequently used by landowners, which can be impacted by climatic variability and climate change. The WETEcoService benefits and landowners perceptions of ecosystem services varies, as the WETEcoService direct and indirect ecosystem services are either effective or ineffective in dry and wet years. In contrast to landowners perceptions emphasising the importance of ecosystem services directly beneficial to them. The study recommends that the ecosystem services landowners perceive as important is linked to their interest to guarantee their participation in catchment management. WET-EcoService benefits can inform landowners and managers about ecosystem services degradation and whether their conservation methods are either positively or negatively impacting wetlands.
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    Socio-economic aspects of the sustainable harvesting of buchu (Agathosma Betulina) with particular emphasis on the Elandskloof community
    (University of the Western Cape, 2005) Williams, Samantha; Kepe, Thembela; Dept. of Geography and Environmental Studies; Faculty of Arts
    The aim of this thesis is to explore the socio-economic factors that impact on the sustainable harvesting of buchu in the Western Cape of South Africa. Some of the factors that will be explored include poverty, natural resource tenure, legislation, and local practices with regard to the harvesting of buchu. In order to achieve the objectives of the study, which include documenting different local livelihoods, establishing the roles played by the harvesting of wild buchu within these livelihoods, and analyzing perceptions of different stakeholders regarding sustainable harvesting of buchu, the study employed two approaches. The first was a review of the literature, and the second, empirical research in the form of a case study (the communal land owners of Elandskloof, Western Cape) was utilized. Agathosma betulina, one type of buchu and cited as the best type of buchu, has gained popularity as there is a demand for plant material both locally and internationally. This demand has created some concerns for wild populations of buchu as much of the industry is still supplied by populations harvested from the wild. Cultivation of buchu has emerged as a possible pressure lifter to the wild populations, as a poverty reduction strategy (as rural people are also cultivating), and as a way to provide for some of the demand experienced in the market. The buchu industry is a very lucrative one and, therefore, many problems are being identified and experienced. Noting this, the study makes two broad arguments. Firstly, even though the buchu trade is dynamic and fraught with many difficulties, it is a trade that can benefit all stakeholders and, consequently, there is a need for new legislation or a review of the current legislation guiding the industry. Better monitoring and evaluating processes, as well as information and communication platforms where stakeholders can interact, prove important. Hence, this should include the participation from stakeholders at all levels. Secondly, in order to establish effective policy guidelines, an understanding of the social dynamics that influences buchu harvesting is important for the resource sustainability as well as the trade.