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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

The impact of the white settlers on the natural environment of Natal, 1845-1870.

Ellis, Beverley. January 1998 (has links)
As no other study of settler impact on the Natal environment exists for the early colonial period, this thesis is a pioneering work. It aims to document the changes white settlers made to the natural environment of Natal between 1845 and 1870. In order to do that, an understanding of the state of the environment by 1845 first had to be reached. This involved outlining briefly the nature of the environment and then assessing the impact made by the Iron Age farmers, the white hunter-traders, and the Boers of the Republic. The establishment of the Colony in 1845 meant that Natal was now in the hands of British administrators, determined to discover and utilize the resources of this outpost of the British Empire. The arrival and distribution of about 5 000 settlers in the early 1850s made the white population of Natal predominantly urban and British. Imbued with the idea of progress these settlers attempted to produce for their own subsistence and, where possible, sufficient surplus to sell for profit on the market. In so doing they not only perpetuated and intensified types of environmental exploitation already operating in Natal, but also initiated new ones. Over a period of twenty-five years, the comparatively small settler population was responsible for the irreversible transformation of the landform and mineral resources, flora and fauna of Natal. This thesis details the changes the settlers caused, on a regjon-by-region basis, but lack of evidence in some areas - despite extensive research - has resulted in several lacunae in the overall picture. However, as the conclusion shows, the general pattern of exploitation of the Natal settlers was not unique, but in fact mirrored that of settler societies in Australia and North America. / Thesis (M.A.)-University of Natal, Pietermaritzburg, 1998
142

Exploring the use of complexity approaches in strategic management by the KwaZulu-Natal department of education.

Mpungose, Nkosinathi Petros. 22 October 2013 (has links)
Finding ways to deal with complex situations has been a long issue of interest by researchers and scholars alike. Researchers and scholars have provided the strategy community with an insightful understanding of the phenomenon of complexity. The traditional understanding of complexity in strategic management, mainly coming from the design school of strategy, has given way to modern complexity perspectives. These perspectives are from Chaos Theory, Dissipative Structures and Complex Adaptive Systems (CAS). Complexity sciences seek to look at the challenges associated with knowing and understanding the unknowable by focusing on the interactions in complex systems. The properties of complex systems in turn provide lessons that can be transferred to the field of strategic management in a form of approaches to deal with complexity. The CAS metaphor will be used as a model to contrast the approaches in current use by the organisation of study in strategic management. Insights from studies on complex systems points to a need for constant exploratory studies in organisations to determine how well organisations are responding to complexity. The aim of this study is to explore approaches that inform thinking and management practices in strategic management by the KwaZulu-Natal Department of Education (department) in view of complexity - increasing difficulties to understand the world. Firstly, results of the study are intended to contribute to understanding how insights arising from the study of complex systems, in the world, are being used to rethink and design government departments – public sector organisations - systems and strategic approaches, so that they are more flexible, adaptable and able to respond efficiently and effectively to changes in larger environment. Secondly, where the study finds that the current complexity approaches of the department are not informed by the latest thinking on complexity, recommendations are made on ways the department can improve its approaches. / Thesis (MBA)-University of KwaZulu-Natal, Westville, 2011.
143

Marine nutrient dynamics of the KwaZulu-Natal bight : assessing bacterial numbers, biomass and productivity.

Kunnen, Travis Hank. 07 November 2013 (has links)
The KwaZulu‒Natal Bight is formed from a narrow indentation in the SE coast of South Africa with the waters within considered to be oligotrophic. These waters therefore depend on both allochthonous sources of nutrients such as intermittent upwelling of deeper water and nutrients supplied by riverine inputs, as well as the autochthonous nutrients supplied by phytoplankton production, microbial fixation and recycling of nutrients by the microbial loop. Two African Coelacanth Ecosystem Programme cruises were undertaken during 2010, during the wet summer, and dry winter months. During each cruise, the waters of the KZN‒B were sampled rapidly to provide spatial scales (synoptic) of bacterial abundance and biomass, as well as at four predetermined locations to determine temporal scales (focus) of bacterial abundance, biomass and productivity. During the synoptic section, samples were taken in surface waters, close to F‒max (the depth at which phytoplankton were at their most dense as determined by in situ fluorometry), below the F‒max (where depths exceeded 50 m), and near the bottom. These samples were fixed with formaldehyde, stained with DAPI and cells were visualised by epifluorescent microscopy. During the focus section, samples were taken in surface waters, close to F‒max and below F‒max and incubated with 3H‒Thymidine to determine bacterial productivity. Bacterioplankton dynamics (numbers, biomass and productivity) for both cruises, synoptic section, were higher within the photic zone and near riverine influenced waters, with summer showing higher dynamics than winter. Irrespective of season, bacterioplankton dynamics decreased with increasing distance from the coast as well as with increasing depth, potentially via bottom‒up control mechanisms. Results obtained from the focus section of both cruises showed a significant difference between seasons for the Thukela Mouth and Richards Bay North, while no difference at the Durban Eddy. These results from the focus section suggest that bacterioplankton temporal dynamics were more top‒down controlled, rather than environmentally influenced, resulting in fluctuating dynamics over time. Overall, it is proposed that the degree of inorganic nutrient supply to the phytoplankton, resulted in the formation of DOM for use by the heterotrophic bacteria, resulting in a bottom‒up control mechanism, where Chl‒a concentrations within the euphotic zone induces either top‒down or bottom‒up control mechanisms on the heterotrophic bacteria directly affecting their numbers, biomass and productivity. / Thesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2013.
144

Supporting students with disabilities : the impact of the disability grant and the National Student Financial Aid Scheme (NSFAS) on students with disabilities at the University of KwaZulu-Natal.

Ramike, Phomolo. January 2013 (has links)
The transition in South Africa has meant that institutions of higher learning have become much more inclusive spaces of many kinds of people who historically found it difficult to access them. In attempting to achieve this inclusion, the state and institutions of higher learning have recognised that inclusion is not simply the removal of racial exclusions. It also requires support for students who in practice cannot take up their studies due to particular constraints. One response has been the establishment of the National Student Financial Aid Scheme (NSFAS) which offers financial aid in loans and bursaries to students who cannot afford to study. In the case of students with disabilities, a further form of support is important, namely the state disability grant. NSFAS is effective at ameliorating not only the financial constraints of studying, but also the social and academic barriers that are specific to students with disabilities. The disability grant serves as a general source of income to pay for general expenses, to supplement NSFA funding or to be saved for emergencies. While literature exposes the income, educational and geospatial inequalities between disabled and non-disabled people over history, it highlights the financial, academic, social and structural barriers that disabled students face at university. The research highlights why people with disabilities are the ‘deserving poor’ of development and social assistance. With development being understood as the improvement of well-being or living standards, this research explores the role of the disability grant not as social assistance in alleviating poverty, but as social assistance that is developmental. Thus, just as NSFAS redresses the problems of affordability and disability in higher education, the disability grant needs to improve penetration and expansion to people with chronic illnesses, in order to avoid exclusion errors in the interdepartmental network on poverty reduction. / Thesis (M.Dev.Studies)-University of KwaZulu-Natal, Durban, 2013.
145

The dynamics of nano- and microplankton in the St. Lucia estuarine lake system, KwaZulu-Natal.

Fru Azinwi, Nche-Fambo. 10 September 2014 (has links)
St. Lucia estuarine lake system has a history of episodic droughts and floods leading to a high variability in physico-chemical characteristics which may influence the community structure of nano- and microplankton that are the main primary energy synthesisers in aquatic systems. Originally, the St. Lucia estuary and the Mfolozi River shared the same mouth with the Mfolozi River acting as the main source of fresh water to the system and as stabiliser of the common inlet. Due to prolonged mouth closure from 2001-2012 and high evaporation rates, severe extended droughts and high salinities were experienced in 2001-2012.This project aimed to characterise community composition and biomass of nano-and microplankton (autotrophic and heterotrophic) under the varying and extreme physico-chemical conditions in order to characterize the energy basis of the planktonic food web in St. Lucia. Its main objectives were to compare and add onto Johnson’s (1977) list of phytoplankton taxa in the system, to estimate the biomass (carbon) of nano- and microplankton from cell counts and biovolume measurements, and lastly to understand and establish trends in the change in community structure of these organisms with the varying physico-chemical characteristics. Nano- and microplankton samples were collected monthly from October 2010 to September 2011 at three different sites: Lister’s Point, Charters Creek and the mouth representing the lakes and estuary Channel. Chlorophyll a and physico-chemical parameters were also measured in situ during collection. In the lab, samples were settled using the Utermöhl method and species were identified to at least genus level, counted and cell measurements taken under an inverted microscope for biovolume calculations and biomass thereof. Abundance in cells per liter and biomass (carbon) in pg/L was then analyzed from the counts. The nano-and microplankton groups recorded in the system were cyanobacteria, chlorophytes, cryptophytes, dinoflagellates, ciliates and diatoms. Seventy eight phytoplankton taxa were identified composed of 56 diatoms, eight green algae, one cryptophyte, seven cyanobacteria and six dinoflagellate taxa. Nineteen ciliate taxa were also found. Only 12 of the diatom taxa identified in this study were listed by Johnson (1977), none of the taxa in the other phytoplankton groups was listed by Johnson (1977). The Johnson (1977) study conducted in the system from 1975-1977 listed the phytoplankton taxa occurring at that time. There was no significant difference in the community composition, biovolume and biomass between seasons hence no seasonal trend however, there were significant differences in the nano- and microplankton community composition, biovolume and biomass at the three different sites of the system. Cyanobacteria were the main taxa in the northern embayments dominating in abundance, biovolume and biomass (biological variables), green algae and cryptophytes dominated in abundance, biovolume and biomass in the Channels while in South Lake, green algae dominated in abundance but diatoms dominated in biovolume and biomass. Ciliate biological variables were higher in the northern regions than in the other parts of the estuary. The absence or limited grazing pressure of ciliate predators in the northern region due to their inability to cope with the extreme salinities compared to the other parts of the system explains why the northern embayments had the highest abundance, biovolume and biomass of ciliates. Ciliates and heterotrophic dinoflagellates were the heterotrophs in this study. Autotrophic:heterotrophic biomass ratio was lowest in the northern regions as heterotrophs had a higher biomass there. This ratio was higher in the South Lake and the Channel. The lack of stratification and generally high turbidity in the system made the system unfavourable for dinoflagellate growth. The higher presence of ciliate predators in the South Lake and Channel probably accounts for the low heterotrophic biomass hence high autotrophic:heterotrophic biomass ratio in South Lake and the Channel. Nutrients were not limiting during this study and salinity was the main physico-chemical characteristic accounting for the differences in nano- and microplankton biological variables. The Cyanothece bloom in the northern region was primarily due to high salinities (>150) which also indicated unfavourable conditions for other plankton types. The high diatom biomass in the southern lake was due to low salinities (<28) which favoured their growth, whereas chlorophytes and cryptophytes dominated in the Channel mainly due to low turbidity (median of 11.4NTU) and fresh water input from the Mfolozi lowering salinities (<5). The South Lake and Channel thus had the highest available energy for higher trophic level organism since 1) diatoms and green algae are the most favoured food source for phytoplankton grazers while the cyanobacteria though most abundant are the least favoured food source leaving the northern lake with smaller energy source for higher trophic level organisms and 2) The low autotrophic:heterotrophic biomass ratio in the northern region leaves the region with a lower net carbon biomass than the other parts of the system with a higher autotrophic: heterotrophic biomass. / Thesis (M.Sc.)-University of KwaZulu-Natal, Durban, 2013.
146

Dietary dynamics of two key fish species in the St Lucia estuarine system, South Africa.

Dyer, David Clifford. January 2014 (has links)
Among the 155 species of fish recorded so far in the St Lucia estuarine lake, Oreochromis mossambicus and Ambassis ambassis are the two most prominent. Although originally endemic to southern Africa, O. mossambicus is now one of the most widely distributed exotic fish species worldwide. Together with A. ambassis, they have become the dominant fish species in the St Lucia estuarine lake since the closure of the mouth in 2002 and are, therefore, a crucial component of the food webs throughout the system. After a decade dominated by dry and hypersaline conditions, the St Lucia system has changed dramatically in terms of prevailing environmental conditions, as a result of higher than average rainfall at the end of 2011 and the onset of a new wet phase at the start of 2012. In response, A. ambassis, which prefers lower salinity regimes, has expanded its distribution range throughout the estuarine lake. Stable δ¹⁵N and δ¹³C isotope analysis was used in conjunction with gut content analysis to elucidate the diet of these species at sampling localities spanning the geographical range of the system and determine whether these species shift their diet in response to environmental or climatic shifts. From both studies it is evident that from a temporal and spatial scale these two species adopt similar, yet very different, dietary tactics. Oreochromis mossambicus was shown to adopt a generalist feeding strategy, opportunistically feeding on dietary items that are available thus allowing this species to alter its diet according to the environment that it inhabits. Trophic positioning of this species was found to be controlled by salinity in St Lucia as dietary composition differed greatly between sites. In contrast, Ambassis ambassis displayed a more specialist dietary composition, feeding predominantly on zooplankton. However, this species also opportunistically supplements its diet with additional sources when available. Trophic position of A. ambassis was higher in the dry season owing to the increased productivity of the system during the wet season. The success and dominance of both species in the St Lucia system can therefore be attributed to their dietary strategies. Under extreme environmental conditions, O. mossambicus has the added advantage of its wide tolerance of different environmental conditions, particularly salinity, thus allowing it to proliferate. / M.Sc. University of KwaZulu-Natal, Durban 2014.
147

Phosphorus distribution among selected abiotic and biotic components of two KwaZulu-Natal estuaries, South Africa.

Vezi, Madonna. January 2013 (has links)
Phosphorus is an essential element since it controls primary productivity in aquatic ecosystems and its excess can lead to eutrophication in receiving systems. The aim of this project was to determine phosphorus distribution in biotic and abiotic nutrient pools of two KwaZulu-Natal estuaries. Samples of dissolved inorganic phosphorus (DIP), particulate phosphorus (PP), phytoplankton, microphytobenthos, zooplankton, macrozoobenthos and sediment were collected in the temporarily open/closed Mpenjati (MP) and permanently open Mlalazi Estuary (ML) during May (ML), September (MP) and November (ML+MP) using standard methods. Chlorophyll a concentrations as well as species richness, abundance and biomass of zooplankton and macrozoobenthos were analysed. Living and non living nutrient pools were analysed for phosphorus and were compared between stations, sampling sessions, estuaries and taxa. Zooplankton abundance and biomass in the Mlalazi Estuary was higher during May than November. In the Mpenjati Estuary highest zooplankton abundance and biomass was recorded during September than November. No significant differences were apparent in abundance (p = 0.217) and biomass (p = 0.974) of zooplankton between the two estuaries. Macrozoobenthos abundance and biomass in the Mlalazi Estuary was higher during May than November. In the Mpenjati Estuary macrozoobenthos abundance and biomass was higher during November than September. Significant differences in abundance (p = 0.003) and biomass (p = 0.020) were apparent between the estuaries. Sediment to a depth of 10 cm comprised the highest phosphorus biomass than any other nutrient pool in both Mlalazi (4871.1 mgP·m⁻² ± 5888.9 SD) and Mpenjati (2578.6 mgP·m⁻² ± 1828.0 SD) estuaries followed by DIP (120.5 mgP·m⁻² ± 177.7 SD and 5.9 mgP·m⁻² ± 6.1 SD respectively). In both estuaries, the lowest phosphorus biomass was contained in zooplankton with both estuaries containing zooplankton P biomass of 0.001 mgP·m⁻² ± 0.002 SD. Particulate phosphorus and DIP concentrations were higher in the upper reaches in both estuaries indicating that rivers were the main sources of this nutrient in these systems. The Mlalazi Estuary had higher nutrient levels than the Mpenjati Estuary. Such elevated nutrients can be enhanced by the continuous river flow into the permanently open estuary. In both estuaries, no significant differences were apparent in zooplankton and macrozoobenthos P content between different taxa. / M.Sc. University of KwaZulu-Natal, Durban 2013.
148

Facing HIV and AIDS : understanding family support within a rural KwaZulu-Natal community.

Beattie, Kim Joanne. 30 October 2014 (has links)
This study on, ‘Facing HIV and AIDS: Understanding family support within a rural Kwazulu-Natal community’ aimed to explore how an HIV/AIDS diagnosis affects the family as a whole and to determine the role of the family as a primary support system. Although HIV and AIDS infects individuals, it also affects entire families. The researcher employed a qualitative research design to gain in-depth and rich data, and to hear the stories of all participants. The study is grounded in the systems theory and the risk and resilience theory framework. For purposes of clarity, much of the work was divided into the different levels of the systems theory. Risk and resilience aspects were identified in relation to the various themes. It was necessary to explore this topic, not only from the perspective of individuals living with HIV and AIDS, but also from the perspective of their family and community. Three sets of data were therefore utilised: interviews with individuals living with HIV and AIDS, interviews with family members of an individual living with HIV and AIDS, and a once-off focus group discussion to gain the perspective of community members. This helped to ensure sample and instrument triangulation. The type and amount of support that was offered affected the stigma experienced; and affected individual fears and goals, willingness to disclose and the utilisation of available services in the community. It was clear that receiving support reciprocally affected individuals, family and the community. The experience of not being supported resulted in aspects of risk – for example, being more vulnerable in the face of stigma and discrimination. The importance of family support was thus found to be vital in facing the HIV and AIDS journey with resilience. Recommendations are provided at micro, mezzo and macro levels. This study also hopes to assist service providers to provide the necessary services. / M.A. University of KwaZulu-Natal, Durban 2013.
149

Examining the role of community based tourism as a local economic development tool : the case of the Inanda Heritage Route.

Ncube, Siyethemba Silungile. 20 October 2014 (has links)
This dissertation examines the role of Community Based Tourism as a Local Economic Development tool. It sought to establish the impact of Local Economic Development (LED) strategies employed by the Inanda Ntuzuma KwaMashu Area Based Management program (INK ABM) in alleviating poverty in Inanda Township through their living Heritage Site. It attempts to establish whether Community Based Tourism has had an impact on the economic empowerment of communities residing within the Inanda Heritage Route. Poverty Social and Impact Assessment was used in the assessment. The study revealed that LED strategies have had a significant impact in improving infrastructure and service delivery at Inanda Township, however Local Economic Development strategies have had marginal impact in improving the income, assets indicators, human capabilities, market share and employment creation for the local residents of Inanda. Moreover the study revealed that there is a strong positive correlation between education levels and the lack of success of entrepreneurs. A major finding is that LED strategies along the Inanda Heritage Route do not target all the segments of the poor in a meaningful way. As such the study suggests a new LED agenda in Inanda Township which is: holistic, targets all the segments of the poor, encourages skills development and consists of various investment packages which would ensure that poverty in its multidimensionality is addressed meaningfully. / Thesis (M.T.R.P.)-University of KwaZulu-Natal, Durban, 2013.
150

Morphometric characteristics and consumer acceptability of meat from Potchefstroom Koekoek, Black Australorp, Venda and Ovambo chickens.

Mngonyama, Mandisa Bongeka Acquilla. January 2012 (has links)
Indigenous chicken production receives little institutional support and resources because of lack of information on the socioeconomic importance, morphometric characteristic and meat quality of indigenous chickens. A cross sectional survey was conducted to highlight the major constraints to production. A structured questionnaire was administered to 126 households selected from communities of Mnambiti-Ladysmith and Impendle local municipalities of KwaZulu-Natal Province of South Africa. The mean flock size per household was 20 and 17 for Mnambiti-Ladysmith and Impendle, respectively. The cock to hen ratio was 1:2:5. The chickens were mostly kept for meat and income ranked 1 and 2 respectively. Generally, adult females made the majority of decisions on chicken management and marketing (61%), with youths playing a minor role. Scavenging was the major feeding system, seasonally supplemented with cereal grain. The majority of the farmers (87%) provided birds with drinking water. Mortality of chickens was prevalent (46%) in both seasons. In experiment 2, the objective of the study was to compare morphometric characteristics of Black Australorp, Potchefstroom Koekoek, Venda and Ovambo chickens. A flock of 200 indigenous chickens, 50 each of Black Australorp, Potchefstroom Koekoek, Venda and Ovambo breeds were reared under semi-intensive system for 22 weeks. The chickens were slaughtered at 22 weeks of age by manual neck cut, bled for 2 minutes and de-feathered. Body weights, organ weights and linear body measure were estimated using flexible tape prior to slaughter. The body weight for the Black Australorp were higher (P<0.05) than the other breeds. There was no significant difference between the lung, heart kidney and spleen weights among breeds. Linear regression revealed that measurements of linear body parts can be used to predict weight of the birds. The objective of Experiment 3 was to compare consumer acceptability of meat from chickens that are indigenous to South Africa compared to Black Australorp and the broiler. A flock of 200 unsexed freely ranging indigenous chickens of Potchefstroom Koekoek, Venda, Black Australorp and Ovambo breeds were reared under an improved semi-intensive system for 22 weeks. The acceptability of cooked meat samples from each breed was rated on a 9 point Hedonic scale by 69 consumer pannellists drawn from the University of KwaZulu-Natal, Cedara College of Agriculture and the Depart of Agriculture. Age of consumer had no effect on all the sensory attributes of the meat evaluated (P> 0.05). Chicken breed had a significant effect on taste and overall acceptability (P< 0.05) with the Venda, Broiler and Black Australorp, but it had no significant difference on colour, texture and aroma acceptability. Gender of the consumer had a significant effect (p<0.01) on taste, colour and texture acceptability of the meat, but no significant effect on aroma and overall acceptability. Female respondents gave lower scores for taste than did the males (P< 0.01). There was no interaction between gender of consumer and chicken breed on meat texture. Crossbreeding the indigenous chickens with improved breeds such as the Black Australorp is one avenue through which sensory characteristics of the indigenous chickens may be improved. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2012.

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