Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

The role of agriculture in rural development is widely documented in literature. Many analysts regard agriculture, specifically small-scale agriculture, as the cornerstone for viable and sustainable economic growth. Furthermore, the agricultural sector is seen as an effective instrument for poverty reduction, particularly in rural communities of developing countries where a large amount of poor people are concentrated. Indeed, analysts now agree that developing the agricultural sector is perhaps one of the most effective ways to address high levels of poverty evident in the developing world, and call on the world leaders to commit themselves to direct more investment into this sector. Using the avocado industry in Giheta-Burundi, this dissertation argues that some emerging crops (such as avocados) present enormous opportunities to income generation for small-scale farmers with the potentiality of diversifying cash crop farming in Burundi, an area currently dominated by coffee, tea and cotton. This study further suggests that avocado farming presents the economic, market and health potentiality to contribute to a viable and sustainable rural economy in Giheta Burundi, thereby reducing levels of poverty in this area. The main research question is as follows: “To what extent does the production of avocados benefit the income and wellbeing of small-scale farming households in Giheta?” Accordingly, the main policy concern is that if avocados are playing a crucial role for income generation, wellbeing and diet of the small-scale farmers in Giheta, the avocado sector needs to be substantially supported by both the private and public sectors in order to increase the capacity of avocado production in this area and subsequently enable small-scale farmers to gain greater income from this sector. All of which will contribute significantly to reducing levels of poverty in Giheta. This dissertation is 42 266 words in length excluding references and appendices. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2011.

In today’s globalised world, countries including South Africa, are pursuing neoliberal economic policies which have many negative effects on ordinary citizens. One such effect is the privatisation of public space which is an important resource for all citizens. This thesis sets out to examine the privatisation of public space along the Durban coast and the subsequent loss of fishing sites for local subsistence fishers. The thesis draws on literature that is critical of contemporary processes of neoliberal governance. The research approach is a qualitative approach where data collection is predominantly through oral evidence. In-depth interviews were conducted with fishers and other stakeholders. Participatory observation was also used to gather data through the attendance of meetings, protests and workshops that pertain to the fishers. The thesis shows how these fishers are being excluded from using public resources along the coast and thereby prevented from making a living. Most of the spaces that have been privatised are being transformed into upmarket developments or used to further trade through the expansion of the Durban Harbour. In addition, the thesis reveals that the fishers are losing a way of life, and experiencing a loss of identity and a communal subsistence economy. The fishers have become ‘invisible’ to the state, and to the authorities. Current marine legislation does not recognise this group of fishers as subsistence fishers. In response, the fishers have established the KwaZulu-Natal Subsistence Fishermen’s Forum in order to mobilise against the broader processes of exclusion and marginalisation resulting from neoliberal pro-growth development policies. Their strategies include protest, deliberation with the state, and striking alliances with other social movements in a broader process of anti-globalisation struggle. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2009.

Indigenous knowledge use in identifying artisanal fishing zones is the core issue in this dissertation. It seeks, on one hand, to show the potentially of this knowledge and to establish the relationships between indigenous and scientific knowledge in fishing zones identification and, on other the hand, it is also a trend for alleviating those fishing zones surrounding beaches, estuaries and bays highly exploited by artisanal fishermen. Pushing artisanal fishermen upward offshore and/or into the open sea, they will fish more quality and high economic value fish contributing to enhance their income. By so doing, artisanal fishermen will uplift their living standard and, at the same time, they will contribute to sustainable artisanal fisheries management. Angoche District in Nampula province, north of Mozambique is the study area. The study was carried out to describe the logical sequence underlying on the process of identifying artisanal fishing zones using indigenous knowledge. The relationship between indigenous and scientific knowledge is treated with particular attention. The nature of the study is descriptive and analytical based on qualitative and quantitative data. The method used for data collection was face-to-face interviews using structured and semi-structured open-ended questions. Data on socioeconomic, traditional and cultural practices, technological and climate characteristics were collected, analyzed and discussed. Factors underlying artisanal fishing zones were studied. Spatial and non-spatial information for artisanal fishing zones identification was recorded applying Global Positioning Systems (GPS) and, later, processed and analyzed employing Geographical Information Systems (GIS). Finally, a map showing the localization and distribution of the identified fishing zones in the study area was produced. Results from the research show that identification of fishing zones offshore or open sea can be done simply based on local indigenous knowledge. The GIS technology employment facilitates the inclusion of indigenous knowledge into other knowledge which can be used for local decision making. Sustainable fisheries management can only be achieved by developing a science based on the priorities of local people, and creating a technological base that includes both traditional and modern approaches to problem-solving. / Thesis (M.Env.Dev.)-University of KwaZulu-Natal, Pietermaritzburg, 2007.

This study explores the ways in which a group of local fishermen in Durban understand and negotiate their categorical exclusion from a public space. Several months prior to the FIFA World Cup 2010 in South Africa, three piers on the Durban beachfront were closed for upgrading. The fishermen had used two of these piers for nearly three decades, but when they were re-opened, access for fishermen was no longer allowed. Working in the constructionist paradigm and within the field of Cultural Studies, this study describes the fishermen as engaged in the politics of signification through the organisation of public action. To explore their understandings I applied a qualitative, mostly ethnographic approach, and focused particularly on those fishermen who fish on the beachfront and are active in the KwaZulu-Natal Subsistence Fishermen’s Forum (KZNSFF), a body that represents the fishermen in the public sphere. The study shows that the fishermen are a heterogeneous group who understand their exclusion in different ways. This variety and complexity of understandings in effect works against collective action and posed a challenge to the leadership of the KZNSFF who sought to construct a coherent collective action frame. Drawing on Social Movement theory, two public protests in which the fishermen negotiated their exclusion were among the central focuses of this study. The first was held during the World Cup and organised by KZNSFF. The other protest was less coordinated and held after the World Cup. Both protests are analysed through comparison, and indicate the importance of access to resources of leadership. The role of the media in effective Social Movement Organisation (SMO) is discussed in terms of ‘media standing’ and the legitimisation of actions and position of speakers. Further, it is argued that the presence of democratic institutions does not necessarily lead to democratic decision-making as civil society is often demobilised by political society. Additional to public protests, the fishermen negotiated their exclusion in the letters to the editor section of local press. Argumentative discourse analysis is applied in the analysis of a sample whereby strategies of othering are identified. The letter writers were engaged in an unequal contestation in which different sets of stake-holders sought to define what counts as truth in relation to access to the Durban beachfront. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2011.

Coral reefs are highly complex and also highly threatened ecosystems. Population growth and the unsustainable use of coral reefs have resulted in 55% of the world’s reefs being considered degraded. Fishing, the primary ‘local’ threat on most reefs, has altered the composition of most reef communities. As a result, very few pristine coral reefs remain. Typically, coral reef research is done via underwater visual censuses, providing abundance estimates but no indication of trophic interactions, therefore we know relatively little about the structure of intact reef food webs. Understanding how human activities affect trophic structure and feeding interactions among resident reef species may be important for coral reef conservation. Here, I apply stable isotope analysis to coral reef piscivorous fishes from Kiritimati (Republic of Kiribati), the world’s largest atoll. I examine dietary niche metrics of five focal species (Cephalopholis argus, Cephalopholis urodeta, Aphareus furca, Lutjanus bohar, and Lutjanus fulvus) and of the piscivore functional group as a whole, across an anthropogenic disturbance gradient that results from the atoll’s heavily skewed geographic population distribution. Using bootstrapped stable carbon (δ13C) and nitrogen (δ15N) isotope values, controlled for body size effects and analysed with Bayesian methods using the SIAR (Stable Isotope Analysis in R) program, I provide evidence of isotopic niche differentiation in C. argus and L. fulvus relative to other sampled species in terms of niche width metrics and mean δ13C and δ15N values. I also analyse the effect of fishing pressure at an individual level (controlling for body size effects on stable isotope signatures for each species), population level (accounting for observed differences in body size distributions across the fishing pressure gradient for each species), and the ‘community’ level (accounting for body size and relative abundance differences of the five piscivores across the fishing pressure gradient). These metrics reveal species-specific changes in niche metrics of three of the focal species at the individual level: C. urodeta, showed regionally distinct niche width metrics but no apparent correlation with fishing pressure, while A. furca and L. bohar, both had broader niche width metrics in heavily fished areas. No significant effect of fishing pressure was found at population or community levels. This study provides the first evidence using stable isotopes that fishing can alter the diets of coral reef fishes. The mechanism by which it can do so, while not entirely clear, would most likely be by expanding a given species’ dietary diversity by either forcing it to switch to non-preferred prey items or changing the diet and/or body size of its prey items, both of which would reflect significant ecological changes within a community. This thesis provides evidence of the utility of stable isotope analyses in answering important ecological questions in coral reef food webs, and reveals that fishing can affect reef communities at the most fundamental level of trophic interactions. / Graduate / 0329 / burrilladrian@gmail.com

The burgeoning of subsistence agriculture in the townships of Bulawayo, the second largest city in Zimbabwe symbolizes a change in the use of urban space in many cities of the global South. The activity of subsistence agriculture, which in both colonial and post-colonial Zimbabwe has been highly regarded as a rural activity is now a common sight in most townships of Bulawayo, Zimbabwe (RAUF, 2007). Indeed the rise of subsistence agriculture in the residential areas of Bulawayo particularly in the township of Gwabalanda is leading to what I refer to as the ‘ruralization of urban space’, where through practises of subsistence agriculture, elements of rural life have slowly seeped into the everyday life of urbanites (cf. Rogerson, 1993:33; Zeleza, 1999:45). The thesis uses Lefebvre’s (1974) theory of Production of Space to investigate some of the conditions and factors that have influenced the ruralization of urban space in the township of Gwabalanda, as seen in the intensification of a rural-oriented activity of subsistence farm. Using primary data from 17 semi-structured interviews with Gwabalanda residents involved in farming, the thesis intended to interrogate the perceptions and attitudes Gwabalanda residents hold towards the changes in the use of urban space and also examine the possible benefits of urban farming. The investigation of subsistence farming in Gwabalanda led me to identify three complementing and overarching themes or factors that drive urban farming and the ruralization of urban space. The first two themes are the political and economic factors which seem to operate on a macro-level, whereas the other theme of socio-cultural factors functions at an individual or household level. Economic and political factors such unemployment, lack of income, high transport costs of moving food, political alienation and freedom were identified by Gwabalanda residents as important drivers of urban agriculture. On the other hand, socio-cultural aspects which included identity, traditional religion, socialization and changes in migration patterns appeared to be crucial motivators for cultivating urban spaces. The research study also found out that urban households that are engaged in subsistence farming are more food secure and generate extra income from selling some of the produced crops. The income generated is used to pay school fees, pay bills and buy farming inputs for the next planting season. Furthermore some households were sending excess farm produce to their rural homes.

The study examined interactions between morogo plants, arbuscular mycorrhizal fungi (AMF) and Fusarium species. Morogo refers to traditional leafy vegetables that, together with maize porridge, are dominant staple foods in rural areas of the Limpopo Province such as the Dikgale Demographic Surveillance Site (DDSS). Morogo plants grow either as weeds (often among maize), occur naturally in the field or are cultivated as subsistence crops by rural communities. Botanical species of morogo plants consumed in the DDSS were determined. Colonisation of morogo plant roots by AMF and Fusarium species composition in the immediate soil environment were investigated in four of eight DDSS subsistence communities, Isolated AMF were shown to belong to the genera Acaulospora and Glomus. Twelve Fusarium species were isolated from soil among which Fusariurn verticilliodes and Fusarium proliferaturn occurred predominantly. Greenhouse pot trials were conducted to examine the effect of AMF on morogo plant growth (cowpea; Mgna unguiculata) and Fusarium proliferatum levels in soil, Interaction between plants and AMF, as well as tripartite interactions of cowpea plants, AMF and Fusarium proliferatum were investigated. Non-inoculated cowpea plants served as controls for the following inoculations of cowpea in pots: (i) Fusarium proliferatum; (ii) commercial AMF from Mycoroot (PTY) Ltd. (a mixture of selected indigenous Glomus spp referred to commercial AMF for the purpose of this study); (iii) indigenous AMF obtained from DDSS soil (referred to iocal AMF for the purpose of this study); (iv) commercial AMF plus Fusarium proliferatum; (v) local AMF plus Fusariurn proliferatum. Results showed reduced root colonization by local as well as commercial AMF when Fusarium proliferatum were present. Local AMF significantly enhanced cowpea growth while commercial AMF apparently reduced the level of Fusarium proliferatum in the rhizosphere and surrounding soil. Results suggest that AMF may have potential as biological growth enhancers and bioprotective agents against Fusarium proliferatum. / Thesis (M. Environmental Science (Water Science))--North-West University, Potchefstroom Campus, 2007.

Thesis (M.Soc.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2008. / Full text also available online. Scroll down for electronic link.

In this paper, faunal data from two Formative sites, Kuntur Wasi and Pacopampa, are compared. At both sites, the composition ratio of the camelids to deer increased in the late Formative Period. This change of taxonomic composition in the bone sample is interpreted as the subsistence shift from deer hunting to camelid herding. By integrating the faunal data from these sites, it can be suggested that the timing of camelid introduction to the sites corresponds with an overall change of the social framework, which is the shift from a regional society to more widespread network of societies. / En este artículo se exponen los resultados de los análisis en muestras de huesos animales de dos sitios del Periodo Formativo, Kuntur Wasi y Pacopampa, ubicados en el norte del Perú. Ambos complejos se localizan fuera de la distribución natural de los camélidos salvajes. Gracias a estos estudios se podrá comprender, de manera más clara, la introducción del camélido domesticado en esta región y su forma de utilización. Existe una correspondencia entre el momento de la introducción del camélido domesticado y los cambios en la estructura social. En esa época se habría dado el paso de una sociedad basada en la subsistencia local a una que establecía una red extendida de intercambio.