Poverty and the environment are closely linked, as people use environmental resources to support livelihoods. Illegal stone quarrying evident in Lusaka, Zambia is symbolic of the use of environmental resources by the poor. Stone crushing provides income yet it is characterized by land degradation, large-scale excavation and dumping of waste materials. This study provides an analytical account of stone crushing as a livelihood in Lusaka and makes recommendations for improving the livelihoods of stone crushers to become sustainable. Using a livelihoods approach, a qualitative study collected data from various role players in Lusaka. Assets (physical, natural, human, social and political capital) for stone crushers were assessed, revealing that stone crushers lack livelihood assets, key options and are exposed to various shocks due to seasonal shifts. Increasing access to key livelihood assets, reducing vulnerability, improving infrastructure, access to justice and tackling social exclusion and gender inequality will enhance their livelihoods. / Development Studies / M.A. (Development Studies)

A dissertation submitted to the Faculty of Science, School of Computational and Applied Mathematics, University of the Witwatersrand, Johannesburg, in fulfilment of requirements for the degree of Master of Science. 10 November 2014. / This MSc thesis is aimed at assessing the food security of people actively participating in urban agriculture. In addition, it aims to assess the role of community projects that are involved in urban agricultural activities in Soweto. The fieldwork took place in five suburbs of Soweto; Meadowlands, Chiawelo, Mzimhlophe, Motswaledi and Nancefield Hostel. The findings suggest that there is a link between urban agriculture and food security in Soweto. Field based research revealed that the participants who engage in urban agricultural activities are doing so to supplement their households’ daily dietary needs. The community projects that mainly engage in food gardening are doing so for the same reasons as the individuals. However there is a greater potential for the community projects to grow into more sustainable micro-economical entities that can supply the community and local retailers with locally grown cheap vegetables. Hampering this potential is the need for continuous skills development and training in agriculture and financial management. In addition, there is a problem pertaining to access to resources and funding than could assist both the community projects and individuals to grow good quality food. There is however a need for more data to assess the spatial distribution of the urban cultivators, livestock keepers and community projects. Nonetheless, it is important to note that urban agriculture is quite significant in the lives of those involved as it has helped reduce food insecurity in their households and encourages social

The aim of this study is to explore the links which exist between community development and urban food gardens. South Africa has experienced a twenty five percent growth in the urban population from 2005-2010. It is further predicted that this will increase by a further thirty six percent to thirteen million inhabitants by 2015. The practice of urban agriculture is one of the strategies that can assist in addressing development challenges in an urban setting in South Africa and around the world. Urban agriculture has the potential to provide a survival strategy for the poor and thus contribute to poverty alleviation, employment, food security, social integration and skills transfer. This research explores the economic, social and ecological benefits of the activity, questioning the ways in which the Siyakhana food garden (and larger initiative) contributes to the Siyakhana community. For the purpose of the research the Siyakhana community refers to the Siyakhana group (eight women in the inner city of Johannesburg who run Early Childhood Development Centres (ECDCs)) and the gardeners who work in the food garden. Data was collected by means of semi-structured interviews, in-depth questionnaires, participant observation and informal conversation, as well as primary and secondary sources. The data was collected for a twelve month period from June 2010 to June 2011. In total the food garden was visited thirty times during the field work and the ECDCs twelve to fifteen times each. Because of the initiatives potential in community development, the focus of the research gives in-depth insights into the Siyakhana group, their history with the initiative, details about their ECDCs and their expectations and their perceived benefits of being involved with the Siyakhana initiative. The key findings of the study are that there are two primary ways in which the Siyakhana group benefit from being involved in the Siyakhana initiative. The benefits relate to the supplementary food which the Siyakhana group receive on a weekly basis and the practical learning environment of the Siyakhana food garden. This research shows that through their connection with the Siyakhana initiative the Siyakhana group act as a conduit for inner city community development. The healthy and nutritious food from the food garden and the knowledge obtained from being involved with the initiative is shared with a range of stakeholders within the inner city. The Siyakhana food garden is a unique example of a community project which embraces the concepts of ecological health promotion in a multiplicity of ways – through the distribution of food, training, conscientisation and mobilisation. Finally the study shows that when exploring the links between urban food gardens and community development it is not a pre-requisite for the community to physically engage in the production activities of the garden for empowerment and skills transfer to take place.

O deslocamento populacional forçado é um dos principais impactos de grandes projetos de infraestrutura, sendo grandes barragens um dos principais projetos responsáveis por esse tipo de movimento populacional. Estima-se que, até o final do século XX entre 40 e 80 milhões de pessoas haviam sido deslocadas por grandes barragens. O planejamento e a construção de empreendimentos hidrelétricos encontram-se em expansão tanto em nível mundial como especificamente no Brasil, país cujo investimento em geração hidrelétrica é estratégico e prioritário. Essa tendência sugere que o número de pessoas deslocadas por grandes barragens deva crescer nas próximas décadas, apresentando à sociedade os desafios intrínsecos do deslocamento populacional compulsório. Populações deslocadas por grandes barragens passam pelo estresse do deslocamento geográfico e pelos impactos ambientais decorrentes do próprio barramento, estresses que se sobrepõem no tempo e no espaço. Avaliar como esses estresses influenciam os modos de vida de comunidades deslocadas pode ajudar a entender os resultados do deslocamento compulsório e a desenhar medidas de gestão para o deslocamento. O objetivo geral desta pesquisa é compreender como os modos de vida de populações reassentadas em função da instalação de usinas são alterados em processos de deslocamento populacional, considerando as relações socioecológicas. Adotou-se como estudo de caso as usinas hidrelétricas do rio Madeira, Santo Antônio e Jirau. Foram levantados dados secundários e realizadas entrevistas em campo com reassentados e com autoridades, a partir das quais foram organizados dados quantitativos e qualitativos em uma abordagem metodológica mista. Como principais resultados, foi verificada a existência de cinco tendências de adaptação de modos de vida das pessoas deslocadas: (i) a valorização de atividades menos dependentes de ativos naturais em detrimento de atividades diretamente relacionadas a ecossistemas; (ii) a adoção de técnicas de controle de ecossistemas; (iii) a diminuição na diversidade do repertório de modos de vida; (iv) o direcionamento da produção para o mercado e (v) a inserção dos modos de vida em institucionalidades formais. Em conjunto, essas foram associadas a riscos como desarticulação social, aumento do risco à soberania alimentar, diminuição do acesso a recursos livres e diminuição do risco de perda de emprego. A partir desses resultados, recomenda-se medidas de gestão que considerem a interação socioecológica e a perspectiva de locais no processo de deslocamento populacional forçado. / Forced populational displacement is one of the major impacts of large infrastructure projects. Large dams are amongst the main projects that cause such displacement. It is estimated that by the end of the 20th century between 40 and 80 million people were displaced by large dams. The planning and construction of hydroelectric projects are expanding both globally and in Brazil, a country whose investment in hydroelectric generation is strategic and have being prioritized. Such trend suggests that the number of people displaced by large dams should grow in the next decades, making society face the inherent challenges of compulsory population displacement. People displaced by large dams go through the stress of geographic displacement and the stress of environmental impacts caused by the dam itself. These stresses overlap in time and space. Assessing how these stresses influence the livelihoods of displaced communities can help to understand the results of compulsory displacement and to design management measures for displacement. The goal of this research is to understand how the livelihoods of populations resettled due to the installation of hydropower plants are altered in processes of population displacement, considering socioecological relations. The hydroelectric plants of the Madeira river, Santo Antônio and Jirau, were adopted as a case study. Secondary data were collected, and field interviews were conducted with resettled people and with authorities. Quantitative and qualitative data were organized in a mixed methodological approach. As results, were identified five adaptive trends in the livelihoods of displaced people: (i) to value activities that are less dependent on natural assets at the expense of activities directly related to ecosystems; (ii) the adoption of techniques to control ecosystems; (iii) the decrease in the diversity of livelihoods repertoire; (iv) the orientation of production to cash crops to sell in the market and (v) the insertion of ways of life into formal institutions. Together, these trends were associated with risks such as social disarticulation, increased risk to food sovereignty, reduced access to common resources and reduced risk of joblessness. From these results, are recommended management measures that consider socioecological interaction and locals perspective in the process of forced displacement.

Diese Arbeit entwickelt zunächst einen Ansatz, der die Quantifizierung der Angemessenheit von Lebensbedingungen für Wohlbefinden und Entwicklung (Adequate Human livelihood conditions for wEll-being And Development (AHEAD)) auf globaler Ebene ermöglicht. Der Ansatz erlaubt es, sektorale Klimaauswirkungen direkt in Beziehung zu den Voraussetzungen für adäquate Lebensbedingungen zu setzen. Weiterhin befasst sich die Arbeit im Detail mit den Themen Wasserverfügbarkeit und menschlicher Gesundheit und zeigt auf, wie regionale und lokale Untersuchungen die Aussagekraft von allgemeinen, globalen Studien erweitern können. Die Ergebnisse des zeigen, dass Wasser als Element von AHEAD eine besonders aktive Komponente des Systems ist, so dass durch Klimawandel bedingte Veränderungen starke Auswirkungen auf das Gesamtsystem zur Folge haben können. Die Quantifizierung von AHEAD zeigt außerdem, dass Wasserknappheit die Lebensbedingungen bereits heute in vielen Regionen limitiert und Auswirkungen des Klimawandels diese Limitierungen weiter verstärken. Die detaillierte Analyse zum Thema Wasser ermöglicht die Ableitung von geeigneten Ansatzpunkten zur Verbesserung der Bedingungen. In einem ähnlichen Ansatz werden die vielfältigen sozio-ökonomischen und natürlichen Einflussfaktoren, die die Auswirkungen von Hitzestress auf die menschliche Gesundheit beeinflussen integriert, so dass die Ableitung relevanter Informationen zur Reduktion von Klimaauswirkungen auf das menschliche Wohlbefinden möglich wird. Eine Verbindung der vorgestellten Ansätze erlaubt es, Aussagen über die Art, die Intensität sowie die räumliche Ausprägung von aktuellen und zukünftigen Einschränkungen von Lebensbedingungen zu treffen. / This thesis develops an approach to assess Adequate Human livelihood conditions for wEll-being And Development (AHEAD) on a global scale. The approach allows to relate sectoral impacts of climate change to an integrated measure of livelihood limitations, taking into account important determinants of the society as well as the environment. Additionally, detailed sectoral studies on water availability and human health show how local and regional studies of specific livelihood aspects can complement generic, global assessments and provide an overall indication of the nature, severity and spatial distribution of limitations to human livelihoods. The results show, that water as an element of AHEAD is one of the most active system components. Impacts of climate change on water may have strong indirect effects on livelihood adequacy. The potential impacts of changes in water availability on AHEAD are quantified, showing that water scarcity limits livelihood adequacy in many regions of the world. The utilisation of an ensemble of climate change and water models further allows to assess the relevance of model related uncertainty in this regard. As water availability plays a crucial role for the fulfilment of livelihood needs, the global assessment is complemented by a detailed analysis of the adequacy of water availability for relevant sectors. By taking into account sector-specific determinants, the approach allows to depict limitations in detail, also giving indications as to how water adequacy may be improved. Similarly, the analysis of heatwave impacts on human health provides a methodology to assess the multiple environmental and human influences which affect vulnerability and provides specific information on potential adaptation measures to reduce climate impacts. By identifying the most decisive limiting factors, applicable information on how to most effectively improve human livelihoods is generated.

The manner in which socioeconomic forces direct environmentally unsustainable behaviour is largely unseen and unappreciated. North American cultural beliefs, norms and values reinforce the economic system and constitute significant barriers to large-scale societal ecological behaviour change. Overlooked in the degrowth literature, even by researchers who have examined the importance of socioeconomic barriers (materialism and consumption), is the role occupation plays in dictating the ecological footprint and forming our socioeconomic identities. We have gained some understanding of the motivation of those individuals who have chosen to pursue a low-carbon lifestyle, but are lacking information about those who go one step further and adopt a low-carbon livelihood. Fifteen individuals who successfully adopted low-carbon livelihoods were interviewed to examine socioeconomic barriers they may have experienced and learn how those challenges were met. To assume a low-carbon livelihood at present is likely to require forming a new social status identity, adopting new metrics for judging oneself, and creating a new social network supportive of that identity and its values. A four-quadrant framework was used to examine the systemic nature of emergent themes regarding socioeconomic barriers and how those were overcome. Themes that emerged revealed many similarities to individuals committed to a low-carbon lifestyle with some critical differences in terms of both inhibiting and enabling factors. A core finding was that motivational and personality characteristics of the low-carbon livelihood individuals mimic the attributes of moral exemplars that drive a deep sense of ethical obligation to create a pro- social occupation that can function in a low-carbon manner. Clear values, coupled with a strong sense of personal responsibility, overpowered the socioeconomic barriers participants encountered. Implications regarding interventions for fostering the adoption of low-carbon livelihoods and fortifying the Degrowth movement are examined. / Graduate

Conservation managers worldwide are increasingly faced with the challenges of managing and protecting fragmented landscapes, largely as a consequence of human activities. Over recent decades, ecological theory has made a significant contribution to the development of landscape-scale conservation and practice. However, recommendations accounting for what is practically achievable in the modern-day landscape are currently lacking, while criteria for conservation planning and prioritisation continue to neglect the role of habitat networks at the required spatial scale for the long-term persistence of biodiversity. In this thesis, I test and apply ideas surrounding the complexities of managing and conserving species in a landscape context, using a suite of bird species endemic to papyrus (Cyperus papyrus) swamps in East and Central Africa as a model system. In the face of large-scale habitat loss and degradation, practical measures that account for the fragmented nature of this system, the needs of multiple specialist species, and the reliance on this habitat by local people, are urgently required. I first review the concepts originating from reserve design theory to provide a decision-making framework for those involved in landscape-scale conservation amid 21st century challenges to biodiversity, highlighting the key principles to be considered for informed choices to be made. Second, I show that the needs of local people can be compatible with conservation planning in the tropics, and may play an important part in maintaining habitat quality for species residing in historically disturbed landscapes. Third, I develop a novel framework to make an explicit link between metapopulation dynamics and conservation planning. Despite differences in the patch-level dynamics of individual species, areas of habitat where populations of multiple species are resistant to extinction, and resilient because of high chances of (re)colonization can be identified, highlighting where resources could be invested to ensure species have the capacity to respond to future change. Finally, I simulate the metapopulation dynamics of the papyrus-endemic birds to demonstrate that the optimal conservation strategy for the long-term persistence of all species residing in a network depends on the characteristics of individual species, and the total area that can be protected. Overall, this thesis develops and tests the ecological theory used in spatial conservation planning, emphasising the importance of habitat disturbance and interspecific ecological differences for the effective management of habitat networks. The results increase the evidence base for the conservation of wetland birds in Africa, as well as for species residing in fragmented landscapes more generally.

Savanna woodlands are vitally important in providing ecological services (e.g. erosion protection, micro-climate) and economic services (e.g. timber, food, fodder non-wood products, and wild-life habitats) that sustain local livelihoods and national economies. Increasing demands and the need for sustainable savanna woodland resource management requires that the ecological, economic, social and cultural values of these resources be explored and brought to the attention of decision makers and the general public. The identification and better understanding of the structure and dynamics of woodland community types, patterns of species distribution and quantitative properties of their diversity is important to the conservation and sustainable management of these woodlands. This study seeks to contribute to a better understanding of Nakasongola woodland community types, species diversity patterns and environment correlates, natural regeneration processes (i.e. sprouting and seedling establishment) and identifying livelihood strategies adopted by households, woody species utilised, and the contribution of charcoal production to household livelihoods. Data on vegetation and environmental variables were collected using 75 rectangular 20 x 50 m (0.1 ha) plots. Data on land use and land cover changes, and relevant associated socio-economic parameters were collected through the analysis of multi-temporal satellite imagery and field observations, as well as interviews of local households and key informants. The basic major livelihood activities for the rural households in this savanna dryland are charcoal production, subsistence crop cultivation and livestock grazing. However, it, sometimes, includes various combinations of activities, i.e. charcoal production and subsistence crop cultivation for both food and cash, and livestock keeping for income generation through selling the livestock products such as milk and, sometimes, the whole animal. At least 24 woody species, including fruit trees (Mangifera indica and Artocarpus heterophyllus), are frequently harvested, including 16 species that are considered the most utilized for charcoal production. Charcoal production, being the major source of income to the rural households, contributes on average US$ 259 ± 46 (S.E.) per household annually. There were significant differences in charcoal production (Kruskal-Wallis; H = 31.42, p < 0.0001), producer sale prices per bag of charcoal (H = 35.62, p < 0.0001), and annual incomes from charcoal production (H = 32.44, p < 0.0001) per households across the 8 sub-counties. Most of the youth (≤ 20 years old) derive their livelihoods from charcoal production, a small amount of trade, offering labour services, livestock keeping, fishing, bee keeping and earth brick making. Charcoal production, livestock keeping and hunting are carried out particularly by men, whereas, crop cultivation, and collection of fire wood, medicinal plants and fruits are carried out, mainly, by women. However, men are also engaged in cultivation only during the rainy seasons. There have been significant land cover changes in the area during the period 1984 to 2001, resulting in a 64% decrease in dense woodland cover, and an 80% increase in areas under cultivation/settlements. These changes are attributed to significant spatial expansion in agriculture increased commercialisation of charcoal production, grazing and human population growth. A total of 44,195 (5,893 plants/ha) woody plants representing 99 species in 67 genera and 31 families were recorded. The most species rich families were Mimosaceae (13), Rubiaceae (9), Moraceae (7), Euphorbiaceae (7), Anacardiaceae (6), Combretaceae (5) and Verbenaceae (5). Density of woody species differed significantly (F2, 72 = 6.3, P < 0.003) among land uses, being higher under charcoal production (7,131 ± 755 plants/ha) and cultivation (6,612 ± 665) areas and significantly lower under grazing lands (4,152 ± 525). Community species composition differed significantly (Global RANOSIM = 0.14, p = 0.001) among land use types. All measures of beta-diversity (spatial “turnover” in species composition) showed consistently higher beta-diversity in the grazing land use (βW = 3.1; βT = 3.1), followed by cultivation (βW = 2.8; βT = 3.0) and charcoal production (βW = 2.7; βT = 2.8), suggesting a more heterogeneous spatial distribution of species in the grazing lands. This suggests that variations in the composition and diversity of woody species are to a great extent influenced by land use type and anthropogenic disturbances in this region. Basal area of woody species differed significantly (F2, 72 = 12.0, P < 0.0001) among land uses, being highest under cultivation and charcoal production and significantly lower under grazing. Woody plant density differed (F2,72 = 6.3, P = 0.003) across landuses, being highest under charcoal production and cultivation and significantly lower under grazing. The species that contributed most to both basal area and density across all the land uses were Combretum collinum and Combretum molle. However, different species contributed the next most i.e. Piliostigma thonningii for grazing; Albizia zygia and Harrisonia abyssinica for cultivation and Vepris nobilis for charcoal production areas. For both basal area and abundance of all woody species, the total variance in species-environmental factor relations (for the combined first four canonical axes) was higher than 50%, suggesting a relatively strong influence of the measured environment variables on species composition and distributions. The CCA points to a significant influence of soil Ca2+ and Mg2+ in association with grazing on gradients in the composition and structure of woody species in the savanna woodland of Nakasongola. Resprouting was generally common among the woody species. A total of 2,595 stumps, representing 74 species in 31 families were recorded from all plots. Of these, 98.3% resprouted and were identified to species level. Density of both stumps and total resprout differed significantly (p < 0.05) among the land uses, being higher in charcoal production areas than in grazing and cultivation land uses. For the overall pooled data, resprouts per stump differed significantly among land uses (F2, 456 = 7.75, p = 0.0005), being highest in charcoal production (mean ± S.E.; 14 ± 1) and cultivation (13 ± 1) land uses and lowest under grazing areas (10 ± 1). Generally, the mean number of resprouts per stump increased with increasing stump basal diameter (BD), being highest for BD size class > 41 cm. In relation to stump height, the highest mean resprouts/stump was found on stumps with heights ranging from 0.31- 0.40 m. Based on pooled species data, regression analyses showed weakly significant negative relationships between BD of leading resprouts and number of resprouts/stump (r2 = 0.123, p < 0.0001) and between height of leading resprouts and number of resprouts/stump (r2 = 0.068, p < 0.0001). Density of seedlings of woody species differed significantly among land use types (ANOVA; F2, 72 =5.9, p = 0.004), being highest for cultivation (3,162 ± 440 individuals ha-1), followed by charcoal production (2,416 ± 295 ha-1) and lowest for grazing (1,629 ± 205 ha-1). Composition of seedlings differed significantly among land use types (Global RANOSIM = 0.119, p = 0.001). The distributions and densities of some seedlings were explained by gradients in environmental variables, with edaphic factors (i.e. Ca2+, Mg2+, K+ and organic matter) and charcoal production being the most important. The first two axes of the Canonical Correspondence Analysis (CCA) explained 41.9% of the variance in species – environmental relations and were a reflection of edaphic and charcoal production land use gradients. All of the 16 highly utilized species were well represented in both the juvenile and adult classes, with gradually declining number of individuals with increasing stem size-class. This indicates that most of these species have high regeneration potential. Juvenile:adult tree ratios >1 and negative DSCD slopes indicate good recruitment and probably successful regeneration for these species. The study revealed land cover changes mainly in the dense and medium dense woodlands, reflected by the increase in open woodland, grasslands and cultivation/settlements. These trends threaten the livelihoods of local communities who are entirely dependent on these natural resources. Sustainable management will require the establishment of suitable integrated community-based institutions and management practices, with support from all key stakeholders (i.e. National Forest Authority (NFA)) and local communities. Maintenance of savanna woodland resources and other ecosystem services essential for human well-being will require an effective legal framework to prevent over-exploitation and give incentives for the protection of the fragile savanna woodland vegetation. An appropriate savanna woodland management policy will be required to guide changes in land use that accommodate the requirements of land users, aided by targeted conservation efforts to all woody plants and particularly for the highly utilized species for charcoal production as well as the multipurpose species. In addition, there is urgent need to build local capacity for improved harvesting and utilization of these tree species. This can be achieved through equipping local users with up to date information as well as observing the existing skills.

<p>This study identifies the determinants of sheep prices for small-scale sheep farming households in two districts of the Eastern Cape, namely Amathole and Ukhahlamba (Joe Xabe). Output prices that small farm households receive for their sheep affect their incomes from agriculture (knowing that revenue is a product of quantity and price), which, in turn, influence their living standards. The study isolates three sets of determinants of price formation in local agricultural markets - structural drivers, institutional factors and livelihood shocks - to account for the variations in prices that smallholder farmers receive. Data were collected from 134 households that were selected using purpose sampling and preceded by key informant and focus groups interviews with actors along the sheep value chain. A questionnaire consisting of both open-ended and quantitative questions was used. The relationship between output price formation and clusters of determinants is a typical hedonic pricing framework, which is fitted using a backward stepwise econometric technique that is a widely used experimental tool to identify significant determinants.</p>

The agricultural sector of Andean countries like Peru and Bolivia perceives the consequences of climate change in increasing water stress due to melting glaciers and changing precipitation patterns. Therefore mainly subsistence agricultural systems are increasingly vulnerable. Traditional inhabitants of the tropical Andean region are aware of the recurrent diversity of climate related impacts and its consequences, thus livelihood strategies are based on principles of risk management. Andean farmers are nowadays applying traditional strategies in a combination of homegrown experimentation and scientific know-how to cope with and adapt to a changing climate. Understanding these adaptations has become one of the most important aspects of research into climate change impacts and vulnerability. It provides essential knowledge for developing and transferring strategies towards a sustainable management in agriculture and agroforestry systems. But there still is a lack of a comparative assessment, especially in regions with high impact of extreme climate conditions. The endogenously determined strategies, which are based on the experience of the farmers, are to be complemented by knowledge and experiences coming from outside farm-household systems and communities. In a collaborative way, this exogenous knowledge is to be placed at the disposal of local actors. The necessary network approach leads to a comprehensive involvement of local stakeholders. Therefore a participative network on climate change may work as a tool to bridge the gap between the global discourse on climate change and local action.