List of Titles

Co-management and social equity at Silaka and Hluleka Nature Reserves, South Africa

Authors: Mtshintsho, Anda
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464834 , vital:76549
Description: Co-management of protected areas (PAs) is a desired conservation approach aimed at balancing ecological goals and livelihood needs. Central to co-management are issues related to power sharing, responsibilities and benefit sharing. However, there still remains a dominance of an ecological emphasis in PA management, with studies focusing more on ‘objective’ biodiversity indicators for measuring the effectiveness of protected areas. However, focusing only on ecological indicators addresses a narrow perspective of achieving ecological integrity and misses social dimensions that, in some cases, might be considered more important than technical considerations. Particularly, in contexts with a history of socio-physical displacement of Indigenous people and local communities (IPLC), the social dimensions of wellbeing are complexly embedded into the economic and ecological dimensions, such that ignoring these linkages might jeopardise the success of protected areas. Thus, the aim of this study was to examine the state of research and conceptual advances on social indicators of conservation success in co-managed PAs and stakeholder views and perceptions on socially just conservation in co-managed protected areas in Silaka and Hluleka Nature Reserves, South Africa. To achieve this, a scoping review, semi-structured interviews and futures workshops (using the three horizons framework) were conducted. Findings from the scoping review (chapter 2) revealed that much of the reported social monitoring indicators still rely on quantifiable metrics (i.e., economic benefits) and less on subjective and relational metrics (i.e., qualitative strength of social networks and perceptions). Unsurprisingly, many of the reviewed case studies revealed the use of participation as an indicator of evaluating co-management success. Further, the interviews and futures workshop results in chapter 3 showed that the non-accrual of key co-management expectations such as the employment of local people, benefit-sharing (material or otherwise), participation in decision-making and community development has led to heightened conflicts between the reserve management agency and local people. Consequently, the respondents did not value the co-management arrangements, citing unfulfilled promises. Broadly, the findings of this study emphasise the need for collective and collaborative efforts in developing indicators that are not only socially just but those that are context dependent and sensitive. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

Exploring food waste narratives and perceptions in print media and in the urban community of Makhanda, in the Eastern Cape, South Africa

Authors: Dlamini, Zinhle Nkululeko
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464798 , vital:76546
Description: Food waste (FW) is a global issue that has gained increasing attention in recent decades. There has been more research to identify the multi-layered causes and effects of this issue. A vast number of studies focus on the quantification of FW, its drivers, and causes. While quantifying the amount of FW being generated is important in revealing the scope of the problem, there are many aspects of FW that are still not as widely covered i.e., the socio-cultural component of FW. This is because first and foremost what is considered food, and what is considered FW is influenced by the sociocultural context in which it is obtained, prepared, and consumed. The socio-cultural context of a society cannot be studied properly without looking at the way the people that practice those specific societal norms and cultural practices think and perceive things. Perceptions are important because sociocultural behaviours and practices tend to be reproduced in correlation to how they are perceived. Thus, if the socio-cultural dimension of FW is to be dissected, one needs to look at the socialisation agents that affect the cultural context. A socialisation agent that has been cited as growing in influence and enjoying unprecedented access in human society is the media. Despite the proven influence of the media on perceptions and behavioural patterns, the sheer volume of studies that look at the linkages between media and topics such as FW is limited. in the context of the Global South, particularly in South Africa. In response to this research gap, I set out to examine the types of narratives and perceptions that print media and media consumers within an urban community have about FW. Since the study is centred around print media perceptions and narratives and those of the community, the study used a mixed-method approach that comprised of a media analysis, one-onone, semi structured interviews, key informant discussions as well as food focus groups. Thirty six respondents were interviewed with semi-structured one on one interviews, a further six respondents were key informants, they too were interviewed with one on one semi-structured interviews. Lastly, 16 were participants in the focus sessions, and each session comprised of 8 randomly selected participants. To procure the FW perceptions and narratives of print media and the people of Makhanda, the study was divided into three phases. Phase one comprised of a print media analysis through an archival media platform of SABINET. Phase two comprised of two food focus group sessions; phase three of the study comprised of the semi-structured interviews with 36 interviewees representing the general public and six with key informants. To make sense of the results obtained from the print media analysis, the study used the agenda setting framework and found that that the representation of FW content in print media was limited. Through the use of thematic analysis, 14 viii FW perceptions and narratives were identified in print media (and perceptions and narratives are used interchangeably, therefore 14 themes equals 14 FW perceptions and narratives). Of these 14 themes there were some that were more frequently presented than others. The most frequently presented perceptions and narratives in print media were the FW and food insecurity/hunger, FW and morality and FW and the economy. The study also found that a bulk of the FW content disseminated by print media belonged to a relatively few publications namely: Cape Argus, The Star, the Mail and Gurdian and the Daily Dispatch. These findings reinforced that FW perceptions and narratives in print media were not only disproportionally represented but were also disseminated by a limited pool of media content creators. The study found that Makhanda respondents used and preferred other media forms outside of print media i.e., radio and television. Respondents maintained that the media form they were the least exposed to and least preferred was print media (newspapers). From the 58 respondents, only seven respondents indicated that they listened to and preferred radio more than any other media form, and only two respondents noted that they read newspapers. In contrast, 24 respondents noted that they preferred and were more exposed to television than any other media form. In addition, respondents noted that they saw and heard a limited amount of FW content on the media that they were most exposed to. Instead, they noted that they were more exposed to content that encouraged them to procure and consume food, such as food advertisements. On average, individuals that were exposed to and preferred radio reported to hearing more FW content as opposed to individuals that preferred television. For instance, from the seven respondents that preferred and were most exposed to radio, four of them noted that they had heard a lot of FW content. While 17 of the 24 respondents that preferred and were most exposed to television, maintained that they did not recall seeing any FW content. The study also found that Makhanda respondents had a number of perceptions and narratives about FW, that were converted into themes using content and thematic analysis. The study found that Makhanda respondents had a total of 15 FW perceptions and narratives. Just like in the media analysis there were some perceptions and narratives that were emphasised and more frequently mentioned than others. The three most dominant themes were: affluence, FW and hunger, and FW and morality. Furthermore, the research also found that the perceptions and narratives of respondents were influenced by a variety of external and internal factors such as socio-economic status/affluence, gender, age, race, and media preference. These factors interacted with each other and varied in their significance from one respondent to the other. By far, the aspect shown to be the most influential in shaping respondents FW perceptions and narratives was affluence. Twentyeight respondents spoke about the economic drawbacks of FW and cited as reason for not engaging viii in FW. In addition to this, there were some respondents that maintained that FW did not occur amongst people who belonged to the lower socio-economic class and that rather, the phenomena were limited to those who were more affluent. In speaking about affluence, respondents e linked FW with other aspects such as race, gender, age, and media preference. For instance, in addition to claiming that FW was only limited to affluent households, other respondents felt that wasting food was a luxury the only white people participated in. Such claims highlight the idea that the sociocultural historical context of South Africa is one that has some influence in the FW perceptions and narratives of Makhanda respondents. The study found that there was little overlap in the types of perceptions and narratives that print media and the Makhanda respondents have about FW. From the 14 and 15 perceptions and narratives found between each realm there were only three thematic overlaps namely: the theme of affluence, morality and FW and food insecurity. This limited overlap of perceptions and narratives suggest that there is a disconnection present between the perceptions and narratives of print media and those that are exhibited by Makhanda respondents. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

Exploring social learning practices for catchment management: a case study of two catchments in South Africa

Authors: Siyengo, Kwanele
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464848 , vital:76550
Description: Social learning is achieved through a wide range of practices and is understood in different ways through multiple definitions in the literature. It is recognised as an outcome of stakeholder engagement through collaborative activities such as catchment management. Stakeholder engagement and collaboration in catchment management helps stakeholders understand the complex systems they work in, by enabling deliberation, dialogue, knowledge sharing and interdependencies. These are seen as processes which enable not only the sustainable use of natural resources but also help to achieve outcomes of transformative social learning. In partnership with the Living Catchments Project (implemented by the South African National Biodiversity Institute - SANBI), this study explores social learning practices and facilitation – and the role these play for transformation. Exploring two case studies, the Olifants River catchment and the Umzimvubu River catchment, the study adopted a qualitative participatory case study approach. It used observations, semi-structured interviews and reflections to look at the social learning practices in the two catchments. Additionally, it made use of the Social Learning, Knowledge Management and Mediation (SLKMM) framework as an analytical tool to investigate social learning practices and tools in the cases and explore how support for these can be enhanced in future. The results showed that there are existing social learning platforms and facilitation practices in the two catchments. Though not often explicit, social learning exists, and various tools (analytical, visual, participatory, and conceptual) and practices can be used to facilitate social learning. The greatest challenge for transformative social learning in these catchments is the need for a monitoring and evaluation practice which documents and makes explicit important learning and transformation taking place. This is therefore why, through a set of recommendations, it is suggested that it is key to build capacities within existing facilitators and to work closely with stakeholders from research, policy, and implementation to grow the existing social learning work, for future transformation. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

Exploring the influence of power dynamics on collaborative governance in the Thukela Catchment

Authors: Dunyana, Philisa
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464809 , vital:76547
Description: South Africa is a water-scarce country with unequally distributed water. This dilemma has been brought about by insufficient water supply and governance fragmentation, among other drivers. The democratic national water policies (National Water Act No. 36 of 1998) intend to foster collaborative water governance (CWG), where stakeholders within catchments must come together to learn and share decision-making responsibility through collaborative platforms that should ensure the sustainability and equitable distribution of water resources. Still, CWG is not functioning well in most parts of the country, partly due to power dynamics that compromise dynamics on collaborative governance processes and outcomes in the Upper Thukela Catchment (UTC). It did this by identifying the roles of stakeholders, looking into the nature of power dynamics among stakeholders and how these affect collaborative processes, and by examining how power dynamics interact with resources and mechanisms to influence collaborative governance outcomes. The research used two interrelated conceptual frameworks (Franks and Cleaver (2007) and the 4Rs framework (Mayers, 2005)) to explore power dynamics. The study was conducted through qualitative research using a case study approach, which consists of data collection methods such as in-depth semi-structured interviews, document review, direct observation and participant observation. The 4Rs framework highlighted the insufficient involvement of critical stakeholders in water governance, specifically those from the public sector with water management and governance authority rights. The analysis also exposed conflicting relationships among stakeholders involved in water governance, mostly stemming from some public sector stakeholders evading roles and responsibilities, a lack of trust, and limited access to information. These factors contribute to challenges and tensions within the water governance landscape in the UTC. The research also showed that the presence of different political parties in the water governance and management space seems to be the primary roots of the power dynamics that affect the processes of water governance and management. Political parties contesting power over the same communities led to conflict, corruption, competition, negligence, and sabotage. These challenges impact operational flow, service delivery, sense of urgency, and decisionmaking. Thus, the nature of power dynamics in collaborative governance processes further exposed the underlying issue of limited statehood. Application of the Franks and Cleaver (2007) framework revealed that through their influence on power dynamics, resources and mechanisms of access affect livelihoods and catchment outcomes. The study contributes to the body of knowledge on the influence of power dynamics on collaborative governance and provides recommendations for further studies to improve collaborative water governance. It highlights the complex interplay between power dynamics, stakeholder participation, and water governance processes in the UTC. To improve collaborative water governance, it is crucial to address limited stakeholder participation, mitigate the negative influence of political parties, and meaningfully empower local communities. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

Potential futures: land management decision making in the Albertinia-Herbertsdale area of the Gouritz Cluster Biosphere Reserve

Authors: Johnson, Ryana Elizabeth Milne
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464823 , vital:76548
Description: Land use change drives biodiversity losses, and UNESCO biosphere reserves serve as laboratories for solving complex problems in the uncertain Anthropocene geological era. Land users' decisions form turning points for land use, biodiversity conservation and future trajectories of land management. This qualitative study used grounded theory, one-on-one interviews and a futures thinking workshop to explore land user decision making in the mixed agricultural Herbertsdale- Albertinia area of the Gouritz Cluster Biosphere Reserve. The study included participants using a variety of land management approaches, ranging from conservation to intensive agriculture. This study found that land managers in the study area interact with multiple complex social-ecological systems, and land management outcomes can be unpredictable for diverse reasons. Informed by learning and risk mitigation as well as their motivation for their present and future, land users are integrating sustainable land management practices in their commercial land management decisions. Their risk adaptation strategies tend to be hands on, independent and practical, as well as action oriented. This can be limiting when adaptation requires abstract, collective or systemic changes. All the participants know that they are dependent on natural resources. They all value their community and social networks. They have a strong appetite for learning, and combine an understanding of the historical context of their land management with an understanding that positive futures will require dynamic and extensive changes at multiple scales. They desire more integrated land use planning at catchment and landscape scales. Collaboration and collaborative strategies emerged as important pathways to the desired future. These include landscape level planning, lobbying for political and legal change, building community, learning, sustainable land management and social integration. It emerged that giving people time to think about abstract or large scale issues is appreciated, and not currently routine. This provides a potential leverage point for collaborative environmental stewardship in this highly biodiverse region. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

The assessment of abandoned cultivated lands: a case study of Lower Tsitsana and Hlankomo villages in the Tsitsa River catchment, Eastern Cape, South Africa

Authors: Dakie, Regina Nokufa
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464787 , vital:76545
Description: Globally, agriculture is an essential part of people’s livelihoods, contributing to rural economies and food security. However, cultivated land abandonment, the intentional or unintentional cessation of agricultural activities for takeover by other land uses, is becoming increasingly common. Although widely studied, the outcomes of cultivated land abandonment are highly context-dependent and varied. Understanding this phenomenon would thus benefit from placed-based social-ecological case study perspectives, particularly in more understudied contexts. This study represents such a perspective, taking a social-ecological approach to understand how land abandonment has emerged and what its consequences are for the desired future outcomes in the Hlankomo and Lower Tsitsana villages in the Tsitsa River catchment. Drawing on McGinnis & Ostrom’s (2009) framework, I framed cultivated land abandonment in my study area as a “focal action situation” informed by the interaction of natural resource systems, governance systems, actors, and resource units. To better understand the current state of the natural resource system and important ecological (resource) units (grass), I used two measures of ecological condition: a rapid assessment test that provided a broad, if superficial, understanding of degradation and land condition, and a veld condition assessment that provided an understanding of grassland composition and quality in abandoned fields. I also used aerial photographs to assess the extent of changes in abandoned cultivation in the catchment. To understand actors, governance systems, how they interacted with natural resource systems and units for land abandonment to emerge, and what implications these interactions may have for the future of these lands, I used semi-structured interviews. The Rapid Assessment Test tool showed that the abandoned cultivated fields were dominated by grasses (58.3%), while shrubs (11%) and succulents (11%) were the least prevalent. The veld assessment identified sixteen grass species in both villages, with Aristida junciformis (23%) and Eragrostis plana (22.2 %) being the most dominant. The grazing statuses of the grasses showed that there were more Increaser II species, followed by Increaser III, Exotic, Increaser I and Decreaser species, respectively. There were more grass species with low grazing and average grazing values than grass species with high grazing values. The Rapid Assessment tool and the Veld assessment showed that the fields were dominated by poor grass species that grow on degraded lands. The results thus showed that the abandoned cultivated lands are degraded and in poor condition, as they are covered mainly by poor grass species that are dominant in over-utilised and overgrazed areas. The aerial photographs showed a decline in cultivated lands from 1966 to 2015, with a significant decline between 1966 and 2003. The land under cultivation between 1966 and 2003 decreased by 95 %, resulting in an annual decline of 2.56 %. The land under cultivation from 2003 and 2015 decreased by 60 %, resulting in a decline of 4 % per year. Local people corroborated the increase in cultivated land abandonment in the interviews, and this is why I attempt to understand why abandoned cultivated land happened (how the resource system and governance systems/actors interacted to shape cultivated land abandonment). As in other South African rural contexts, reasons people gave for land cultivation abandonment revealed the strongly intertwined nature of ecological and social systems, including no fence, livestock eating crops, no cattle, lack of labour, migration, lack of resources (money and equipment), parents passing on, expensive fertilizers, rainfall variability, dependency on grants, lack of interest and laziness. People had different views about the future of the abandoned cultivated lands, suggesting building homes, recreational parks, poultry farms, and recultivating and livestock protection camps, while others indicated that they didn’t care what happens to the abandoned fields. Many people still value abandoned lands and would prefer for the land to be recultivated, but they are held back by factors beyond their control, such as no fencing and a lack of governmental support in the form of fertilisers and machinery for ploughing. Additionally, our ecological results suggest that, due to the degraded states of these lands, significant rehabilitation would be required to realize these desired outcomes. Overall, this study shows the social-ecological complexity that drives cultivated land abandonment in the Tsitsa River catchment, providing a context-specific understanding of the drivers and consequences of abandoned cultivated land, future options more specific to these villages, and the broader Tsitsa catchment. At the same time, my study also corroborates similar studies in rural African and other global South contexts, thus supporting generalizable knowledge that can be used in the development of agrarian, social and environmental policies in these regions. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

The spatial extent, practices, and impacts of illegal solid waste dumping across an income gradient in Makhanda and Knysna, South Africa

Authors: Tombe, Yumunu Chenjerai
Date: 2024-10-11
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/464875 , vital:76553
Description: The disposal of household solid waste (HSW) through illegal dumping has become a widespread issue globally, especially in developing countries. The problem has been exacerbated by several factors such as rapid population growth, urbanization, poor infrastructure, poor enforcement of bylaws, mismanagement, poor municipal service delivery, and lack of funding, resulting in most urban residents resorting to illegal solid waste dumping (ISWD). Illegal solid waste dumping by urban residents in most developing countries is becoming a standard occurrence particularly along roadsides, vacant plots, riverbanks, forests edges, and in commonages near and within human settlements. In most South African towns and cities, the practice of ISWD is an immense social, economic, and environmental problem. The practice has led to nationwide environmental pollution and has posed significant socio-economic and health risks to urban residents particularly the urban poor, who reside in areas where ISWD is more pronounced. Studies on ISWD in South Africa are mostly within metropolitans and cities neglecting medium-sized towns like Makhanda and Knysna where such information is needed to improve municipal household solid waste (HSW) management plans and policies. Using street surveys, illegal dumpsite mapping, waste categorization templates, and household survey interviews the study examined the spatial extent, composition, dumpsite sizes, as well as residents’ practices and perceived causes and impacts of ISWD across different income groups in two medium-sized towns of Makhanda and Knysna, South Africa. The results showed that more dumpsites were enumerated in Makhanda (155) than in Knysna (60), however, the occurrence, size and prevalence of illegal dumpsites were unevenly distributed, with most dumpsites being in low-income compared to high-income neighbourhoods. In both towns, most of the dumpsites were within open access areas such as roadsides, vacant plots, and commonages. The composition of waste within dumpsites consisted mostly of household waste (Makhanda = 42% and Knysna = 49%), garden waste (Makhanda = 37% and Knysna = 30%), and construction waste (Makhanda = 21% and Knysna = 21%). More residents in low-income than in high-income neighbourhoods reported dumping, attributing it primarily to poor municipal services (Makhanda= 59% and Knysna= 54%). Within both towns, environmental impacts of ISWD were experienced by residents from both income groups, with over 50% of the respondents citing visual pollution as the most serious impact. The health impacts of ISWD were exclusively reported by low-income residents with over 30% reporting TB and Rashes as the key health impacts. Overall, the research concluded that ISWD distribution, prevalence, dumpsite sizes and impacts were unevenly distributed across low-income and high-income neighbourhoods with the former disproportionately facing v an overall higher occurrence of illegal dumpsites and subsequent health risks. The occurrence of more dumpsites in low-income areas seem to suggest that factors like socio-economic inequalities, historical legacies, lack of education and awareness, and poor municipal services in these areas are at play and need to be addressed to mitigate ISWD. To tackle the problem of ISWD a collaborative approach is recommended, one that incorporates stakeholders, households and municipal efforts and improvements. Such solutions could include improved municipal funding to develop an efficient service delivery system, solid waste awareness campaigns in communities, and provisioning of bins along open access areas. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-10-11

Implications of Lantana camara invasion on rural livelihoods and native woody species in the Kavango Zambezi Transfrontier Conservation Area, Zimbabwe

Authors: Francis, Buhle
Date: 2024-04-05
Subjects: Invasive plants Zimbabwe , Livelihood , Cost–benefit analysis , Commons , Kavango-Zambezi Transfrontier Conservation Area Secretariat , Invasive plants Environmental aspects Zimbabwe
Language: English
Type: Academic theses , Doctoral theses , text
Identifier: http://hdl.handle.net/10962/435896 , vital:73210 , DOI 10.21504/10962/435896
Description: Lantana (Lantana camara Linn, Verbenaceae) is an invasive alien species found in many disturbed and conservation habitats worldwide. Much work has been conducted on the impacts that L. camara has on ecosystems and communities living in affected areas. In some localities, interventions to eradicate L. camara have been made to reduce the impacts, with follow-up assessments on the benefits of these restoration efforts at some locations. However, L. camara continues to spread globally, and the Zambezi Transfrontier Conservation Area (KAZA TFCA) in Zimbabwe has not been spared. The KAZA TFCA is an important area for biodiversity conservation, ecotourism, and enabling and encouraging regional peace, cooperation and socio-economic advancement. This study was carried out in the KAZA TFCA, covering the Hwange District in Zimbabwe, with the primary aim to ascertain the effects of L. camara on rural livelihoods, native woody species and the soil properties of KAZA TFCA, and whether the policy environment and passive restoration efforts have been effective in controlling it in the area. The study employed a mixed-methods approach using both qualitative and quantitative methodologies to resolve the research problem. Firstly, 102 plots were randomly established in the study areas where native woody species were recorded. In the first section of the Communal area, there were 60 plots in total comprising of 34 invaded and 8 uninvaded. In the other section of the Communal area, 21 plots were sampled, with 7 invaded, 7 control and the other 7 cleared. In the Victoria Falls National Park, 18 plots were established which comprised of 12 invaded and 6 uninvaded. In the Victoria Falls Rainforest area, 21 plots were established which comprised of 7 invaded, 7 cleared and 7 control. The criteria of selecting 102 plots was based on a number of factors which included; Research objectives, Randomisation, Historical data (From locals and Environmental Management Agency), Environmental variables, Spatial distribution if invasion, Accessibility, Budget and Time constraints. A total of 72 soil samples were collected for laboratory analysis of nitrogen, pH, organic carbon, phosphorous and potassium. The 72 soil samples were considered based on available funding for analysis. This soil samples collected samples were representative of the entire study site. In the Communal areas, 300 household questionnaires (representing approximately 12.35% of the total number of 2 430 households) were administered, two focus groups with elderly residents were conducted, and 11 key informant interviews were held. One-way ANOVAs and several multivariate tests were conducted to assess the impact of L. camara invasion on native woody species composition and soil properties. Descriptive statistics were used to conduct a cost-benefit analysis of the presence of L. camara in the study sites. This was coupled with a principal component analysis to assess vulnerability of respondents to invasion, based on variables such as age, gender and level of education. One-way ANOVAs and multivariate analysis were also used to assess if passive restoration contributed to the recovery of native woody vegetation and the improvement of soil properties. In invaded plots, restoration natural recovery occurred after removing the L. camara invasion with no further intervention done after the removal. Document and thematic analyses were conducted to evaluate perceptions and knowledge of policy and legislation pertaining to L. camara management. Lantana camara negatively affected the native woody species, as evidenced by a reduction in species richness, abundance, density, height and canopy cover. Lantana camara also altered soil properties such as texture, chemical composition, colour and porosity, as found by comparing invaded and non-invaded plots in both the Park and Communal areas. Once L. camara invades an area it tends to become dominant at the expense of native species, many of which are a source of livelihood for the local people. Thus, displacement of native species by L. camara potentially increases the vulnerability of local people, some of whom are already experiencing challenges, such as drought and human-wildlife conflict. The invasion of L. camara was found to date back over eight decades ago. Based on focus group discussions with elderly participants, the initial invasion of L. camara in the Ndlovu Communal area was approximated to 1942. This invasion was noted to have begun in ward 2 of Ndlovu Communal area and spread to the other four wards in the study area over 16 years. Despite the challenges of losses and costs induced by the invasion of L. camara, benefits and gains were reported in some areas. For example, in the protected areas, the fruits of L. camara are eaten by birds, while bees use the flowers for honey production. It is noted that L. camara seeds spread through bird droppings become a cost to the environment through further proliferation of the invasion. In some communal areas, households use L. camara for hedges, herbal medicine, cane for furniture, and as an ornament. The relative losses and gains associated with L. camara are context-specific and are dependent on several factors. In this study, the presence of L. camara resulted in negative impacts that included the reduced area of productive land for crops and grazing. Combined, the mean costs borne were US$ 483 household-1 year-1. Furthermore, the combined mean benefits of L. camara, such as use as live fencing around homesteads and fields, mosquito repellent, fruit, fire kindling and ornaments, protection of fowls from raptors, and the prevention of gully erosion along watercourses, were valued at US$ 716 household-1 year-1, thereby exceeding the costs by 48%. However, most (62%) households experienced a net negative cost-benefit ratio. The overall mean value across the sample indicates benefits outweigh costs because a minority of households experience large net benefits. Although L. camara is invasive in the area, communities have taken advantage of its presence to find uses that contribute to their day-to-day lives. Despite the use of L. camara by communities, efforts to remove it have been made in some parts of the Ndlovu Communal area as well as in the Parks (Victoria Falls and Rainforest). The study investigated the impact of passive restoration on native woody species and soil properties. The findings showed a significant improvement in species richness and diversity in cleared plots compared with invaded plots. The species composition differed in the cleared, invaded and uninvaded plots with specific species favouring the different types of “treatments”. This showed the relationship between invasion and associated species. Soil properties had visible differences due to passive restoration, with figures of cleared sites consistently being intermediates of invaded and uninvaded plots. Despite the passive restoration projects, an analysis of knowledge and management showed that most local respondents whose age ranged between 25- 93 years, did not consider L. camara to be invasive but viewed it as part of the vegetation in the area. They also took little responsibility for its management. A further analysis of documents and policies related to the management of invasive alien species found that there were legal instruments in place for the management of invasive alien plants in Zimbabwe, including L. camara. The key informant interviews and the questionnaire surveys showed conflicting views on perceptions and opinions about whose responsibility it was to manage L. camara, with communities saying it is the authority’s responsibility, while some of the authorities suggested that it was everyone’s responsibility. However, some of the key informants highlighted the need to review the policies, guided by empirical studies on of the impacts of L. camara. Currently, it appears the policies are adopted from international bodies as a means of alignment to global policies, but they are not contextualised to suit the dynamics in the country. Overall, the study showed that the presence of L. camara in the KAZA TFCA has notable negative impacts on the native woody vegetation, as well as on local livelihoods, but some households have adapted to using L. camara to benefit them. This, however, has implications for efforts to stop the spread of L. camara if its presence is considered a benefit by some and a cost by others. The efforts to remove L. camara show that the native woody vegetation recovered. The study showed the need to raise awareness of the invasive nature of L. camara because some respondents did not consider it invasive. Findings from this study have implications for the management of L. camara in KAZA TFCA and similar areas, and inferences can be made to assist in the management of other invasive alien plants. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-04-05

Wild edible plants in rural home gardens: livelihoods, perceptions, economic value & traditional knowledge

Authors: Mothupi, Frans Makwena
Date: 2024-04-05
Subjects: Wild plants, Edible South Africa , Sustainable livelihood , Traditional knowledge , Economic value , Food security South Africa
Language: English
Type: Academic theses , Doctoral theses , text
Identifier: http://hdl.handle.net/10962/435885 , vital:73209 , DOI 10.21504/10962/435885
Description: The prevalence of hunger and malnutrition has been steadily increasing in the world over the past decades. The rate of food insecurity was further exacerbated by the COVID 19 pandemic which plunged millions more into hunger as a result of a recovering economy and high food prices. These challenges are mostly experienced in Africa and are estimated to worsen in this region already affected by conflict, poor healthcare, and natural disasters such as floods and droughts. The green revolution in the 1960’s elevated agricultural production to play a pivotal role in the provision of food. However, production focused mainly on the cultivation of staple crops such as rice, wheat, and maize. The reliance on these crops has contributed to the lack of micronutrient intake and consumption of non-diverse diets. Wild edible plants (WEPs) which previously formed a significant part of indigenous people’s diet, have been regarded as an important food source crucial for the alleviation of malnutrition and micronutrient deficiencies. Despite their nutritional qualities, they are often ignored, overlooked, and undermined by agricultural programmes and food security interventions. Additionally, WEPs are largely absent in modern diets, they are often surrounded by negative perceptions, they are economically undervalued, and the indigenous knowledge of these species is under threat. As a result, this study regards WEPs as important resources that can significantly contribute to improved livelihood outcomes such as income, food security and good health. Using the Sustainable Livelihoods Framework, this study evaluated the contribution of WEPs to sustaining livelihoods, providing economic value, and examined how WEPs are perceived as well as the relationship between their knowledge and consumption in rural areas. This study was conducted in rural villages that are under the jurisdiction of the Moletjie and Matlala tribal authorities in the Polokwane and Aganang local municipalities, South Africa. Qualitative and quantitative research methods were employed for data collection. A total of 356 participants were interviewed for this study. Firstly, in-depth interviews were conducted with 20 elderly participants (Chapter 2). Semi-structured interviews were conducted with a total of 120 participants stratified by age, gender, and income groups (Chapter 3). A total of 96 household surveys were conducted in selected villages, this was complemented by direct observations and field surveys of the home gardens (Chapter 4). Questionnaires and freelists were administered to a total of 120 participants also stratified by age, gender, and income groups to collect data on indigenous knowledge of WEPs (Chapter 5). Thematic analysis were performed for interview data (Chapter 2) and data were summarised, descriptive statistics, chi square tests (Chapter 3), Kruskal-Wallis tests (Chapter 4), ANOVA tests and correlation tests (Chapter 5) were performed using SPSS software. The findings show that there has been a major nutrition transition characterised by changed meal composition, patterns, and frequency relating to the consumption of WEPs. The changes can be attributed to increasing western influence characterised by rising urbanisation, western lifestyle of church, school, and employment in an income-based economy dependent on retail stores to fulfil their daily dietary needs. Despite this, WEPs are still valuable to rural people, this is indicated by the fact that traditional foods are made optional at some modern and traditional celebrations. Overall, most of perceptions (65.6%) regarding the consumption of WEPs were positive. The overwhelming majority of respondents agreed or strongly agreed that preparations from the local WEPs are relatively more tasty (98.3%), healthy (96.6%), nutritious (86.7%), and better represent the traditional foods (94.1%). Additionally, participants perceived WEPs to have health benefits in that they have medicinal properties to help prevent diseases, are a good source of energy, highly nutritious and they give strength. Despite these benefits and positive perceptions, most participants expressed doubt over the commercial success of WEPs if they were to compete with cultivated crops in the market. As a result, they perceive the future of WEPs to be bleak as 95% of participants believe that their consumption is in decline. This can be largely attributed to deagrarianisation, climate change, and preference of cultivated foods by the youth. The study also showed that a diversity fruits and vegetables are available in rural home gardens, with cultivated fruits grown in abundance and WEPs available in almost all households (98%). WEPs represented 34% of the total estimated economic value of plants available in rural home gardens. Most of the home gardens produce food to supplement household food supply with only a few households engaged in trading. The trading of WEPs was recorded in 9% of the home gardens while 16% sold cultivated fruits and/or vegetables. Challenges such as lack of water and poor rainfall are shocks which affect the availability, richness, and abundance of home garden produce. WEPs are generally well known in rural areas as participants listed an average of 8.4±2.4 species. There was a significant statistical difference between the number of species listed by age group (p = 0.009) with the elderly listing a higher average number of species (9.3±2.6) compared to adults (8.1±2.5) and the youth (7.8±1.7). Vangueria infausta, Sclerocarya caffra, Ximenia caffra, Amaranthus retroflexus L. retroflexus, Citrullus lanatus,and Cleome gynadra where among the top listed species. There was also a significant positive correlation between the number of listed fruits with number of listed vegetables. The study also found a positive correlation between knowledge of WEPs and consumption. Most of the knowledge about WEPs was learned from a family member (89%), own observation (86%), a village elder (75%). This knowledge was mostly acquired from childhood through oral tradition (63%) and through participation (21%), and consumption (12%). , Thesis (PhD) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-04-05

Acacia dealbata invasion and clearing in Upper Tsitsana communal areas of South Africa: human perceptions and ecological impacts

Authors: Coka, Nwabisa
Date: 2024-04-04
Subjects: Restoration ecology South Africa Eastern Cape , Acacia dealbata , Invasive plants South Africa Eastern Cape , Working for Water Programme , Invasive plants Control South Africa Eastern Cape
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/434876 , vital:73113
Description: The number of invasive alien plants in South Africa and globally continue to increase mostly due to increased human movement and climate change. It is estimated that approximately 10 000 hectares of South Africa’s terrestrial land is invaded by invasive alien species. Recent studies have reported that invasion by invasive alien plants cost South Africa billions of Rands every year through loss of water and ecosystem services. Although much has been done to understanding invasion trends, patterns, and processes in South Africa, little is knowns regarding human benefits linked to alien plant invasion as well as human perceptions regarding management interventions, particularly clearing by the national Working for Water programme. This thesis took a socio-ecological approach to assess (i) local people perceptions and knowledge of Acacia dealbata invasion and clearing, and (ii) extent of grazing grass diversity and composition recovery following A. dealbata clearing. To answer the above-mentioned objectives, both qualitative (face-to-face interviews) and quantitative (vegetation surveys) methods were used in grasslands located in upper Tsitsana catchment, South Africa. Results from the 165 interviews conducted in six villages show that most villagers are aware of A. dealbata in the area, but do not know that it is an invasive alien plant. Respondents accrue several benefits from the plant that include firewood (98% across all villages), construction pools (34% across all villages), and shade (3% across all villages). Respondents identified several costs associated with A. dealbata invasion, such as roots damage to houses (37% across all villages), hindering growth of crops (15% across all villages), and takes up yard space (29% across all villages). Most of the villages ranked the effects of A. dealbata on grazing as highly severe. Villages indicated that the Working for Water clearing programme presents them with socio-economic benefits such as employment and money. Some villagers noted that the clearing of A. dealbata in the area restores grazing grass (62% across all villages) and water (32% across all villages). Based on these interview survey results, the study concludes that A. dealbata has both costs and benefits that support local people’s livelihoods; therefore, its management should consider views for local users. Grass surveys conducted in 1 m2 quadrats that were replicated 15 times across four paired A. dealbata cleared and grassland sites showed that the removal of A. dealbata facilitates the recovery of native grasses. Of the 14 different grazable grass species that were identified across all quadrats only one (Bulbostylis sp.) is not palatable to livestock. Although grass cover was significantly (p < 0.05) higher in the grasslands than the cleared patches, grass richness was significantly (p < 0.05) higher in the cleared patches an indication that recovery of different grasses is taking place. Based on these vegetation survey results; the study concludes that recovery of grazing grasses after A. dealbata clearing four years ago is following a positive trajectory as the cleared sites are looking like the grassland sites. Overall, the study recommends that management of A. dealbata in Tsitsana landscape requires a socio-ecological approach to understand user benefits whilst at the same time developing measure to control the plant. The study has provided evidence that A. dealbata clearing facilitates passive restoration of grazing grass and local villages are aware of these restoration benefits. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2024
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Date Issued: 2024-04-04

Drought impacts on livestock and crop production along an urban-rural gradient: perceptions and response strategies in the Eastern Cape province, South Africa

Authors: Pamla, Avela
Date: 2023-10-13
Subjects: Livestock Effect of drought on South Africa Eastern Cape , Farms, Small South Africa Eastern Cape , Crops and climate South Africa Eastern Cape , Drought management South Africa Eastern Cape
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/424732 , vital:72179
Description: Drought is a major challenge threatening agricultural productivity in urban and rural areas across southern Africa. Drought events are expected to be more frequent, severe, last longer, and, impact land-based livelihoods in the coming decades. Despite the growing literature on the impacts of drought on livelihoods, there is limited focus on the impacts of droughts across rural-urban gradients. The study examined small-scale farmers’ perceptions of drought impacts and response strategies in the contexts of persistent droughts in the Eastern Cape province of South Africa. A total of 163 respondents, practicing livestock and/or crop farming across six towns, in urban and rural contexts were purposively identified. The study used snowball sampling approach to identify the relevant respondents. Data were collected through a semi-structured questionnaire survey, exploring the respondents' socio-demographic profiles, agricultural activities, perceptions of drought impacts, and drought response strategies. Qualitative data were coded and analyzed using descriptive statistics, thematic analysis, t-tests, and chi-square tests to identify patterns, themes, and relationships within the data. Nearly all (>95%) respondents owned livestock while substantially more rural farmers (81%) than urban farmers (35%) engaged in crop production. Drought was perceived by a sizeable proportion (>70%) of small-scale farmers as a very serious environmental challenge with adverse socio-economic repercussions on land-based activities. Livestock losses and crop failure were the key impacts reported by small-scale farmers in both rural and urban settings. About 86% of respondents across the sample reported declines in crop yields, with significantly more farmers in rural sites (45%) than urban sites (31%) reporting so. A substantial proportion of farmers across the sample (93%) reported drought response strategies relating to livestock and crop production, such as changing of farming practices, use of drought-resistant crops and government support, with slight differences in the proportion of farmers reporting so between urban (89 %) and rural (95 %) sites. Concerning government support, most respondents (>70%) stated that they were dissatisfied, with slightly more respondents in urban areas (77%) than in rural (70%) areas reporting so. Overall, the results of this study suggest a minimal response capacity of small-scale farmers to droughts in both rural and urban settings due to socio-economic and administrative factors, which calls for the need for drought-response strategies to build adaptive capacity for small-scale farmers. Turning to close cooperation between different stakeholders, such as local farmers, government officials, practitioners, and scientists might allow co-production of knowledge needed to inform drought response strategies. In some instances, attention needs to be given to farmers who are more vulnerable than others. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-10-13

Marine plastic pollution impacts on ecosystem services and livelihoods in South Africa: a review and stakeholder perceptions

Authors: Yose, Papama
Date: 2023-10-13
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/424743 , vital:72180
Description: Marine plastic pollution is one of the major environmental problems globally, with adverse impacts on marine ecosystem services, functions and benefits and people. Yet, compared to plastic pollution impacts on terrestrial ecosystems, the impacts of plastic waste on marine ecosystems are little studied and poorly understood in South Africa. In response, research interest on the ecological and economic impacts of marine plastic pollution has grown rapidly but socio-cultural impacts remain poorly conceptualized and little understudied. This trend is arguably driven by the dominance of a quantitative paradigm which is arguably inadequate to respond to dynamic socio-cultural issues and contexts. Further, in South Africa, marine ecosystems are used by diverse groups of people ranging from subsistence users, tourism operators, commercial fishers and recreational users, meaning that addressing marine plastic pollution requires a multi-stakeholder approach. However, few studies explore the perceptions of diverse stakeholders regarding marine plastic pollution, its impacts and potential interventions. Against this background, the objective of the thesis are twofold: (a) to argue for a more nuanced understanding of marine plastic pollution impacts on human well-being in order to strengthen conceptualization of impacts that goes beyond direct and quantitatively measured impacts (ecological, health and economic) but considers the socio-cultural dimensions of impacts (lifestyle disruptions, mental health costs and cultural and heritage impacts), and (b) examine stakeholders’ perceptions of marine plastic pollution, its impacts and potential interventions in South Africa. Drawing on case studies, this study provides a working definition of the socio-cultural impacts of marine plastic pollution and a conceptual framework for categorizing the impacts. It highlights three dimensions of the socio-cultural impacts of marine plastic pollution (lifestyle, mental health, and cultural and heritage impacts). It also illustrates connections between marine ecosystems and marine-based livelihood activities with the social and cultural dimensions of human wellbeing to show the links between marine environments and socio-cultural contexts. Concerning stakeholder perceptions, the study showed a tendency to associate marine plastic pollution with immediate, noticeable and easily quantifiable ecological impacts such as entanglement and ingestion of marine organisms, economic impacts and social impacts (e.g., loss of aesthetic appeal). However, secondary impacts such as loss of marine biodiversity and social impacts such as human health, were largely unknown. Moreover, there was heterogeneity in perceptions of marine plastic pollution impacts among the stakeholder groups. Prospective studies researching marine plastic pollution impacts should consider divergent and diverse perceptions of different stakeholders to capture the real costs of marine plastic pollution. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-10-13

Status and potential of green infrastructure to support urban resilience in Zomba City, Malawi

Authors: Likongwe, Patrick Jeremy
Date: 2023-10-13
Subjects: Biodiversity , Ecosystem services Malawi Zomba District , Green space , Land use Malawi Zomba District , Land cover Malawi Zomba District , Social ecology , Sustainability , Urban resilience , Trees Variation
Language: English
Type: Academic theses , Doctoral theses , text
Identifier: http://hdl.handle.net/10962/431821 , vital:72806 , DOI 10.21504/10962/431821
Description: Small and medium towns with less than one million inhabitants are regarded to be the fastest growing urban centres globally, absorbing the bulk of the urban population growth. This urban growth drives the diminishing natural capital within the urban settings, resulting in compromised ecosystem services delivery, thereby rendering urban dwellers and systems less resilient to hazards and shocks. It is known that urban resilience discourse is rooted in robust, empirical assessments of the nature, composition and distribution of urban green infrastructure. Using the concept of green infrastructure, a mechanism for the delivery of ecosystem services that are multi-functional, well connected, and that integrate the grey-green infrastructure while providing room for social inclusion, anchored the research in a small city of Zomba, Malawi, which is a fast-growing city facing natural resource and ecosystem service degradation. The research therefore was set to understand the status of urban green infrastructure in Zomba over space and time as the basis for enhancing urban resilience. This was facilitated by an understanding of the spatial and temporal quantity, quality, diversity and distribution of urban greenspaces and the composition, structure, diversity and distributional differences of urban trees within different urban greenspace classes. Further to this was an investigation on the perceptions of and preferences for urban greenspaces among the different socio-demographic groups and finally the role of residents, institutions and institutional frameworks in building urban resilience through the delivery of ecosystem services. To achieve these objectives, the study used a suite of methods. First was geographical information system and remote sensing to understand the spatial and temporal changes in greenspaces within the city in terms of quantity and distribution. Ecological methods of assessing the tree species composition, diversity, population structure and distribution were also employed. To gauge the perceptions of and preferences for urban greenspaces, a survey was done, targeting users found within the urban greenspaces plus residents that claimed to have patronised the urban greenspaces. Finally, to understand the role of nature and the relevant urban ecosystem services provided towards building urban resilience, remote sensing and key informant interviews were done to enrich the literature searches on a case study of urban community efforts involved in managing Sadzi hill to reverse ecosystem disservices versus Chiperoni hill that was not managed. A general impression of declining urban green infrastructure was verified through the study. The city has indeed lost 14 % tree cover between 1998 and 2018 due to increased housing and creation of agricultural land to support the growing urban population. The city has 168 tree species with 65 % of them being indigenous. Residential areas were dominated by exotic trees, mainly due to the abundance of exotic fruit trees like Mangifera indica. Generally, the city has a good tree diversity score but unequally distributed, with the formal residential areas, where the colonial masters settled, having more trees than the mixed and informal residential areas. Nine urban greenspace types were identified, but there was a low per capita urban greenspace area of 11.6 m2 per person, slightly above the minimum standard set by World Health Organisation. From the preferences for and perceptions of urban greenspaces, patronage to these greenspaces (treated as parks) was highest among the educated youth, a majority being from the high housing density areas where there are no urban parks. Walking to the nearest urban greenspace took more than 10 minutes for 85 % of the respondents. With the available by-laws in support for the governance of greenspaces within the city and the role of residents towards the same, restoration efforts that targeted Sadzi hill yielded positive results through reversing ecosystem disservices that were being experienced by the community members around the hill. The community enjoys several ecosystem services that have also contributed towards building their resilience to climatic and environmental hazards. The results of this study have unveiled several green infrastructure attributes that can contribute towards building urban social ecological resilience like the presence of high proportion of indigenous tree species, healthy urban forest, high proportion of fruit trees, high diversity scores, unparalleled demand for urban greenspaces for cultural and regulatory ecosystem services, the willingness to pay and work towards managing and conserving greenspaces and the social capital available from the urban communities. However, the study also unveiled several green infrastructure related attributes that if not checked will continue to undermine efforts towards building urban resilience. These included the continued drop in tree and greenspace cover, poor governance of the available public greenspaces, unequal distribution of trees and urban greenspaces, poor management of greenspaces, bare river banks, lack of park amenities and a lack of a clear strategy, policy or an urban plan that clearly outlines green infrastructure. Efforts towards addressing these will mean acknowledging the role of green infrastructure in supporting urban social ecological resilience. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-10-13

Innovation in ecological restoration techniques: Enhancing Portulacaria afra survivorship in degraded arid thicket

Authors: Norman, Yondela Masande
Date: 2023-03-31
Subjects: Uncatalogued
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/419276 , vital:71630
Description: The Albany Thicket Biome has undergone extensive degradation over the past century, particularly from overstocking of livestock in the arid types of thicket. The degradation of the biome, coupled with little to no natural recovery, prompted the South African Government to implement the Subtropical Thicket Restoration Programme (STRP) in the early 2000s to rehabilitate degraded thicket using unrooted Portulacaria afra truncheons. The STRP also sought to create job opportunities, bring about social upliftment, promote biodiversity conservation and incentivise farmers and landowners in the region to promote carbon trading and farming of P. afra using carbon credits. However, the survivorship of P. afra planted using the STRP planting protocol has been less than ⁓30% because they are planted in degraded areas, where the truncheons are subjected to harsh biophysical conditions such as hard, capped soil, high soil temperatures, drought and herbivory. The aim of this study, therefore, was to improve the survivorship of P. afra planted in degraded thicket to at least 30%, using modified planting methods. In this study, four treatments were applied in 210 pondings (or micro-dams), each with P. afra planted in them (the first three treatments used rooted cuttings). The first treatment involved watering regimes where pondings were watered at varying frequencies. The second treatment involved planting companion species alongside P. afra while the third treatment involved planting P. afra underneath a nurse canopy. In the fourth treatment, unrooted P. afra truncheons were planted inside pondings. The mean survivorship of the P. afra cuttings was assessed 18 months after planting. The watering regime treatments, including the control, all yielded a survivorship of over 75%, with the significantly highest levels of survivorship being displayed in the weekly watering treatment (90.9 ± 6.8%) (p < 0.01). The companion plant treatment also produced a high mean survivorship of P. afra (94.9 ± 3.6%), significantly higher than that of the nurse plants (87.5 ± 6.3%) (p < 0.01). Among the unrooted truncheons it was found that untreated truncheons had the highest survivorship (76.2 ± 17.6%), with the lowest mean being found in truncheons that were both pruned and scarified (70.8 ± 20.8%), suggesting that this treatment, out of all of them, is the least successful under the prevailing environmental conditions in the study area. However, there was no significant differences among the unrooted truncheon treatments and their respective survivorship values to further substantiate this assertion (p = 0.26). Findings in this study also suggest that planting P. afra cuttings under a nurse plant was ideal for P. afra survivorship due to the nurse plant’s ability to ameliorate the microclimate under which the cuttings can establish and grow. Despite the soil under the nurse canopy having a significantly lower mean soil water potential (-160.9 ± 200.5 kPa), compared to the open areas (-73.4 ± 55.7 kPa) (p = 0.04), the pondings under the nurse canopy still had a lower mean soil temperature (31.4 ± 5.25°C) than the treatments in the open areas (38.5 ± 2.7°C), during the harsh midday sun. These favourable characteristics are reflected in the P. afra cuttings under a nurse canopy having a higher chlorophyll fluorescence (0.76 ± 0.06). compared to those planted in open areas (0.73 ± 0.13), suggesting that the P. afra cuttings in the former treatment had a higher photosynthetic efficiency compared to those in the latter, despite there being no statistically significant difference in chlorophyll fluorescence between the treatments (p = 0.14). Although these findings suggest that applying these modifications to planting P. afra, having achieved its objective of increasing survivorship to well over 50%, is likely to produce favourable results not only in overall survivorship, but also in fast-tracking arid thicket rehabilitation and restoration, further research on these rehabilitation techniques and their effectiveness is required. Furthermore, the downside to these treatments is that they are costly and time consuming, which puts the feasibility of large-scale programmes using these applications into question. Further investigation is required to determine ways in which the cost-effectiveness of these applications can be enhanced. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-03-31

Crop fields abandonment: assessing the dynamics of degradation in relation to leverage points for sustainable land management in the Macubeni catchment, South Africa

Authors: Sibiya, Silindile
Date: 2023-03-29
Subjects: Land degradation , Sustainable land management , Multiple criteria decision making , Twelve leverage points , Soil erosion South Africa eMalahleni , ArcGIS
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/422470 , vital:71945
Description: Soil erosion is a major global environmental problem and a pervasive forms of land degradation that threatens land productivity and food and water security. Some of the biggest sources of sediment in catchments are previously cultivated lands. Regardless of this factor, the abandonment of cultivated fields is not well-researched. Sustainable land management (SLM) interventions can play a significant role in mitigating and halting land degradation. This study investigated the dynamics of degradation exhibited by crop fields and the potential impacts of SLM interventions, using a leverage points framework and a case study in the Macubeni catchment of South Africa. The research answers three questions: (1) What is the relationship between the usage status of crop fields and degradation in Macubeni? (2) What are the drivers of crop field abandonment and how do they interact in the system? (3) Can proposed sustainable land management interventions tackle the dynamics of land abandonment, and associated degradation, at the root cause level? An empirical-analytical approach using a four step multi-method process was followed, in which crop fields were mapped using ArcGIS tools, literature was reviewed alongside stakeholder engagements, qualitative systems mapping modelling was undertaken, and a Multi-Criteria Analysis (MCA) with leverage points hierarchy was used to integrate all the steps together. The results revealed that the various drivers of crop field abandonment include natural environmental factors, socio-economic and social factors. 47.41% of the total crop fields in Macubeni were classified as highly degraded, and abandoned fields covered 37.47%. The statistical Chi-Square Test also confirmed that there is a significant relationship between the usage status and degradation level in crop fields. The SLM interventions assessed in the study have the potential to tackle the dynamics of land abandonment at a root cause level, however, there is a need to first shift the community’s mental models to address the existing sources of change resistance that are hindering successful implementation. Furthermore, the innovative multi-method approach applied in this study can further provide a holistic, dynamic, and integrated decision-support to land conservation and rehabilitation projects in similar settings across South Africa and other developing countries as opposed to the more traditional one-dimensional approaches. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-03-29

Factors influencing the number of non-timber forest product species used at the individual, household and village levels in Vhembe, Limpopo Province, South Africa

Authors: Mulaudzi, Takalani Rachel
Date: 2023-03-29
Subjects: Non-timber forest products South Africa Vhembe District Municipality , Household ecology , Principal components analysis , Detrended Correspondence Analysis
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/422481 , vital:71946
Description: Non-Timber Forest Products (NTFPs) are wild biological resources obtained from natural landscapes, agricultural systems, and rural and urban regions for a variety of uses. NTFPs contribute significantly to livelihoods and living standards by offering a variety of socioeconomic benefits such as food, health, income generation, and safety nets. These multiple benefits are provided by a wide diversity of plant, animal and fungal species in different settings. However, the precise number of NTFP species used depends on the scale of assessment, namely use by individuals, by households and by villages. Consequently, it is difficult to compare numbers of species used between studies because of the differing scales. As a result, the objective of this study was to determine the number of NTFP species used at three different scales and how each is correlated with appropriate scale-dependent contextual variables. This objective was met by sampling individuals and whole households in five villages in the Vhembe District in Limpopo Province, South Africa. Twenty households were randomly selected in each village, providing a total sample of 100 households and 179 individuals in those households. In each household, every adult member was interviewed individually about the NTFPs that they used or knew. The major questions covered the NTFP species used, the respondents' socioeconomic level, the NTFP species used previously, and if the number of NTFP species are changing in the landscape. Data were reported per individual as well as per household and per village. The household level was derived by adding the responses of all the adults in each household but excluding duplicates. The same approach was used at the village scale, namely, the data across the 20 households were pooled, and duplicates were omitted. Patterns of NTFP use were examined by type of NTFP, and analysis using standard statistical tests, along with a Principal Components Analysis and a multivariate Detrended Correspondence Analysis of the NTFP species composition across villages. A total of 275 species of NTFPs were mentioned across the entire sample, including 81 species of firewood, 48 species of edible insects, 43 species of wild vegetables, 40 species of edible fruits, 38 species of wood utensils, 28 species of medicinal plants, 23 species of thatch grass, 19 species of poles, 19 species of wood for carvings, nine species of reeds, eight species of mushroom, and eight species of fodder. Of these species, some species had more than one use. Approximately 90% of the species used by the respondents were native species. Wild vegetables (e.g., Corchorus olitorius, Amaranthus capensis, Bidens pilosa), firewood (e.g., Colophospermum mopane, Parinari curatellifolia, Combretum hereroense), wild fruit (e.g., Landolphia kirkii, Vangueria infausta), and edible insects (e.g., Imbrasia belina, Macrotermes michaelseni, Encosternum delegorguei) were the most often used NTFPs by communities in the Vhembe area. Most of the households relied on NTFPs for subsistence. At the scale of an individual, the mean number of NTFP species used was 26.8±12.6 across the five villages. When considering a household, the mean number was 36.1±10.7 species. When aggregated across the 20 households per village, the mean number per village was 105.2±34.1 species. The species accumulation curve showed that 20 households per village were reasonably representative for four of the five villages. The results from the principal component analysis (PCA) and correlation analysis revealed that age, education, and employment status were significantly associated with the number of species used by individuals, whereas gender showed no clear correlation. At the household scale, household size was positively related with the number of species used, but income level and income source were not. At the village scale, attributes such as proximity to a town, settlement type, vegetation type, and distance to a nearby savanna all had some influence on the number of NTFP species listed. Most of the respondents felt that the number of species used had increased over the last 10–15 years, although some stated the opposite. Increases were attributed by traditional councils bans, the establishment of protected areas, and restoration. Activities eroding the number of NTFP species were identified as clear felling for farming, climate change, and over-harvesting. This study suggests that communities must be made more aware of the overharvesting of NTFP species in the savanna to avoid biodiversity loss. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2023
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Date Issued: 2023-03-29

An analysis of inland fisheries resource use in the Eastern Cape, South Africa

Authors: Matam, Ncumisa Yanga
Date: 2022-10-14
Subjects: Fisheries South Africa Eastern Cape , Fishery law and legislation South Africa Eastern Cape , Small-scale fisheries South Africa Eastern Cape , Small-scale fisheries Social aspects South Africa Eastern Cape , Small-scale fisheries Economic aspects South Africa Eastern Cape , SADC Inland Fisheries Sector , Subsistence fishing South Africa Eastern Cape , Draft Inland Fisheries Policy (South Africa)‎
Language: English
Type: Master's thesis , text
Identifier: http://hdl.handle.net/10962/232215 , vital:49972
Description: South Africa’s Draft Inland Fisheries Policy identifies inland fisheries as an opportunity for socio-economic benefits such as jobs, food security and economic development, based on small-scale fishing and recreational value chains. Using roving creel surveys, this study examined various fishing groups in publicly accessible dams in both an urban and a rural settlement in the Makana Municipal area, Eastern Cape, South Africa. While inland fisheries are particularly relevant for rural communities, there is very little information on the current use of these resources, irrespective of inland fisheries’ importance. This thesis presents a conceptual framework for a study that: (1) reviews available information of inland fisheries and development attempts in South Africa; (2) provides an assessment of the use of inland fisheries on publicly accessible dams in the Makana Municipal area and (3) evaluates case studies of current and past utilization of selected inland fisheries initiatives in the Eastern Cape. The results of this project provide insights into the current conditions and development potentials of inland fisheries in the Eastern Cape. There was a difference in species composition between the dams, but no difference in the CPUE between dams. For example, in Grey dam many species were present, but as the dam size is only one hectare, this would result in an estimated yield harvest of only 207 kg/ha/year. Anglers were encountered at all dams, although fish were only retrieved by anglers in the rural dams of Committees Drift. Dam usage in the rural area was mostly subsistence angling, and this was significantly greater than in the urban area. Subsistence fishers utilised the fish to sustain themselves and their families and for better livelihoods. Anglers from outside the area tended to utilise the dam for recreational angling. Dams found in the urban area were also mostly used by subsistence anglers, though there were a few uses for aesthetic purposes. The urban dams were also utilised recreationally (picnics, year-end functions, swimming), as opposed to the rural dams which were only used for angling. A total of 10 interviews were administered to key respondents in the form of a questionnaires to determine the importance of the fisheries to them. Catch documented from the questionnaires, interviews and logbooks constituted 1238 species and 978 020 kg. Of all the anglers encountered from the interviews, the gill net catch species varied by dam. The fate of fish caught by anglers was dependent on employment status, with most unemployed anglers selling their fish for income and most employed anglers consuming their catch. The findings show that dams were used mostly by small-scale fishers and recreational anglers. Ichthyological surveys revealed that popular fish harvested were moggel, common carp, largemouth bass and Mozambique tilapia. The results are discussed in the context of appropriate development of fisheries in small dams in the province, with recommendations to continue monitored surveys to better inform the inland fisheries policy. The findings from this thesis show that having small scale fisheries in place and providing good access to the dams is essential for rural populations, in turn, providing better livelihoods through hunger alleviation and generating household income. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
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Date Issued: 2022-10-14

Knowledge of and concern about global biodiversity loss vs local biodiversity loss in the Maputaland-Pondoland-Albany Hotspot (MPA)

Authors: Toyisi, Zanele Jacqueline
Date: 2022-10-14
Subjects: Biodiversity Public opinion , Biodiversity conservation South Africa , Maputaland-Pondoland-Albany Hotspot , Biodiversity loss , Local knowledge
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/10962/365025 , vital:65671
Description: Biodiversity forms the basis of the ecosystem services that society depends on. However, humanity has caused an increase in the extinction rates up to 100 times higher than that of evolutionary background levels. Recent studies found that biodiversity conservation becomes successful when it is grounded in local support. Support for conservation of biodiversity depends on peoples’ knowledge of biodiversity, their attitudes and awareness of the number of species that are present and that are threatened with extinction. However, some studies have shown that the public has little knowledge about the concept of biodiversity and have poor biodiversity identification skills. There is growing concern that people know and are more concerned about global biodiversity loss than what is happening around them locally. The notion that people know and are more concerned about global biodiversity loss rather than local, has not been deeply studied. Most studies have been in developed countries, with limited studies in developing countries and countries that have high diversity such as South Africa. Having accurate knowledge about biodiversity and the environment is said to be the key predictor of intention to change behaviour in relation to biodiversity. Therefore, the purpose of this study was to understand the knowledge and concern (if any) people have of biodiversity at global and local scales. More so, it set out to determine how familiar people are with the term biodiversity, what they consider as forces leading to biodiversity decline, the level of concern that they have for biodiversity loss and if knowledge and concern is influenced by demographic profiles. To achieve this aim, a total of 220 random interviews were conducted in three towns within the Maputaland-Pondoland-Albany Hotspot in South Africa. The results show that respondents are familiar with the term biodiversity. There was a strong relationship between having heard of the term and the ability to define it with 55 % of the respondents aware of it and able to define it. Respondents had moderate knowledge general knowledge related to biodiversity. Gender, education and childhood background did play a role in the knowledge of biodiversity. Women had more knowledge about biodiversity than men, highly educated respondents knew more and the youth knew more than older respondents. The results of this study found that there were no respondents who could not name any local species from South Africa. However, things changed at global level with 32 % of the participants unable to name species at global level. Endangered species are still relatively unknown, as the majority of respondents could not name any at district (84 %) or at global level (61 %). Charismatic species were known the most by respondents as 52 % mentioned them at national level and 59 % at global level. This study also assessed if there is concern for biodiversity loss. The results showed that there is concern for biodiversity with 71 % of the respondents in support for conservation and 60 % of the respondents willing to donate towards conservation. This study found that reasons for conservation related to the level of products consumed directly from the environment. Those that supported conservation for use values consumed more products from the environment than those who were in support for non-use values. Furtherly, this study found that women were more concerned about biodiversity loss than men. Highly educated respondents were more concerned and the youth was not. Furtherly, this study found that knowledge about biodiversity loss corelated with concern. For example, women had more knowledge and were more concerned about biodiversity loss. Overall, this study has shown that there is some knowledge and concern that people have about biodiversity and its loss. This can assist the relevant policy makers and researchers to know where intervention is needed to increase the knowledge that people have of biodiversity loss and which aspects of biodiversity people are most concerned about. This is so that new policies and conservation measures can include what is appealing to the local people so that support for conservation can be built and accepted by local people. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
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Date Issued: 2022-10-14

The distribution and perceptions of invasive alien plants in small towns in the Eastern Cape province, South Africa

Authors: Seboko, Tshepiso Collen
Date: 2022-10-14
Subjects: Invasive plants South Africa Eastern Cape , Land use South Africa Eastern Cape , Invasive plants Control South Africa Eastern Cape , Public opinion South Africa Eastern Cape , Urban ecology (Biology) South Africa Eastern Cape
Language: English
Type: Academic theses , Master's theses , text
Identifier: http://hdl.handle.net/${Handle} , vital:65669
Description: Invasive alien plants (IAP) of different life forms have major effects on biodiversity, ecosystem functioning, economies, and livelihoods worldwide. There is evidence that IAP are rapidly increasing around the world, and the negative impacts associated with them are expected to worsen due to continuing land transformation, climate change, and urbanisation. Yet, information on the distribution, abundance, knowledge, and perceptions of IAP is limited, especially in small towns. Most previous research has largely focused on rural settings and larger cities, thus hindering the effective control and management of IAP in smaller urban settings. It is therefore important to assess the distribution of IAP to provide useful information to guide clearing and mitigation efforts to reduce the impacts and proliferation of IAP in smaller urban settings. Consequently, the aim of the study was to determine the distribution, composition, abundance, and perceptions of woody IAP in small towns in the Eastern Cape province of South Africa and assess how and why they may differ within and between towns. To achieve this aim, a drive by road survey was undertaken across all suburbs and land use types in 12 small towns located in the Eastern Cape province of South Africa. The 12 randomly selected small towns were, Adelaide, Alexandria, Barkley East, Bedford, Burgersdorp, Cathcart, Kirkwood, Middelburg, Paterson, Somerset East, St. Francis Bay and Willowmore. All woody IAP visible from the surveyed roads were counted across all suburbs and land use types within each town. A total of 38 427 woody IAP were enumerated, with 56 species across different land use types and suburbs in all towns. Affluent suburbs accounted for 58% of the IAP enumerated, while the Reconstructed Development Programme (RDP) suburbs accounted for only 5%. In terms of the land use type, most of the IAP were encountered in the residential areas (54%), as compared to, road verges (32%) and public urban green spaces (PUGS) (14%). Of the 12 towns, Middleburg had the highest number of woody IAP, with 5 573 individuals, while Paterson had the lowest number with 947. The most common IAP species across all towns was Melia azedarach with 4 384 individuals, followed by Pinus elliotti (4 051), and Jacaranda mimosifolia (3 640). Spathodea campanulata, Ardisia crenata, and Parkinsonia aculeata had the lowest number of individuals with only two individuals each across all towns. This study also assessed the knowledge, perceptions, and willingness of urban residents to control IAP in their home yards using household surveys. A total of 240 household surveys were administered in the 12 towns. The results showed that more than half of the respondents (59%) had no knowledge of IAP, while 14% had neutral knowledge and only 2% had high knowledge. Forty percent of the respondents agreed that IAP pose a problem to the environment whilst 11% did not think IAP posed a problem to the environment, and 49% stated that they do not know. Most of the respondents (91%) perceived IAP positively, and stated that they benefit from the IAP, with the most mentioned benefit being shade (50%). Almost two-thirds of the respondents (65%) were willing to report on the IAP in their yards to the relevant authorities that deal with the control and management of IAP. Over half (56%) of the respondents were willing to have the IAP removed from their gardens, with the most stated reason for removal was because the IAP caused damage to property (13%). Respondents thought that the local government (35%) or district government (30%) should be responsible for the control and management of IAP. Overall, the study showed that IAP species were most common in residential land use type and affluent suburbs. These findings can assist the relevant authorities that deal with IAP, regarding which plant species, suburbs, and land use types to prioritise regarding awareness and investment for control and management. This will also help explore alternative indigenous species that can be used as replacements that may offer the same benefits derived from IAP by urban residents. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
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Date Issued: 2022-10-14

The impacts of anthropogenic fires in West African savanna woodlands and parklands: the case of the Guinea savanna, Ghana

Authors: Amoako, Esther Ekua Amfoa
Date: 2022-10-14
Subjects: Firemaking Ghana , Agroforestry Ghana , Parks Fire management Ghana , Nature Effect of human beings on Ghana , Land use Ghana , Savanna ecology Ghana , Traditional ecological knowledge Ghana
Language: English
Type: Academic theses , Doctoral theses , text
Identifier: http://hdl.handle.net/10962/365610 , vital:65764 , DOI https://doi.org/10.21504/10962/365610
Description: Fire is recognised as an important factor influencing the structure and function of tropical savannas. Despite the extensive studies conducted on the effects of fire on global savannas, there are relatively few studies focusing on fire-assisted land use practices in the agroforestry parkland of the Sudano-Guinean savannas of West Africa. The region experiences recurrent fires in the dry season which begins from November to April. The fires are anthropogenic and are mainly caused through rural livelihoods and cultural practices such as farming - to remove debris from crop fields and to improve soil fertility and hunting to flush out animals, among other reasons. This study therefore sought to: 1. contribute to the understanding of fire-assisted traditional land use practices, people’s knowledge and perceptions of fire use and fire regime: 2. analyse the effects of fire on vegetation, and 3. determine the effects of fire on soils in the Guinea savanna woodlands and parklands of Ghana. Study sites (burnt and unburnt land use types) were selected based on five-year daily fire counts (2013-2017) data, obtained from the Earth Observation Research and Innovation Centre (EORIC), Ghana in collaboration with the Council for Scientific and Industrial Research (CSIR) Meraka Institute, South Africa. Fire densities were calculated for the 18 districts in the Guinea savanna (Northern Region of Ghana). The districts were stratified into low, medium and high fire frequency areas. The East Gonja district recorded the highest fire density (1.0 fires km-2) while Tamale recorded the lowest fire density (0.3 fires km-2). Of the eighteen districts, six districts were purposively selected and ten communities sampled. Firstly, I investigated the frequency of fire use and control, perceptions of fire regime for selected livelihood and socio-cultural activities in the six districts. The majority of respondents (83%) across the study districts indicated that they used fire once a year for at least one of the following activities: land preparation, weed/grass/pest control, burning stubble after harvest, bush clearing around homesteads, firebreaks, charcoal burning and hunting. The study showed the highest frequency of fire use in the dry season was for land preparation for cropping. However, less than a fifth of the respondents (17%) indicated that they did not use fire for any of the above activities. The results of a multiple regression predicted fire activities in the dry season from gender, age, level of education, occupation and household size. Secondly, the study examined how fire influenced the population structure and abundance of two economically important woody species Vitellaria paradoxa C. F. Gaertn. (Shea tree) and Anogeissus leiocarpa (DC.) Guill. & Perr. (African Birch) in burnt and unburnt land-use types. Stand basal area, mean densities of juveniles and adult trees and Simpson’s index of dominance were determined. Eight diameter size classes of each species were analysed by comparing their observed distributions to a three-parameter Weibull distribution across the land use types. A total of 3,366 individuals of A. leiocarpa (n = 1,846) and V. paradoxa (n = 1,520) were enumerated. The highest total basal area of Anogeissus leiocarpa (16.9 m2/ha) was estimated in sacred groves whereas Vitellaria. paradoxa (20.6 m2 /ha) was found in unburnt woodland. The highest mean densities of A. leiocarpa (22.7±29.7 stems/ha) and V. paradoxa (15.3±2.2 stems/ha) were found in sacred in groves. Anogeissus leiocarpa was, however, absent in fallows and burnt crop fields. A somewhat inverse J-shaped distribution was found in sacred groves for both species. Thirdly, the study compared species composition in early burnt, late burnt and unburnt plots in a protected area where fire was regulated. Vitellaria paradoxa C. F. Gaertn., Terminalia avicennioides Guill. & Perr., Combretum adenogonium Steud. ex A. Rich. and Combretum molle R. Br. Ex. G. Don. were the most common and abundant in all treatments. Late burnt and unburnt plots recorded the lowest diversity amongst the three treatments. Unburnt plots had higher tree density than burnt plots. A Detrended Canonical Analysis showed a changing trend, indicating a moderately strong positive association between burning time and species composition. The first and second axes contributed 53% and 12% variation, respectively. Most of the species found in axis one had fairly strong positive association to early and late burnt treatment than unburnt treatments. Finally, the effects of fire on soil properties in burnt and unburnt crop fields and woodland in the ten communities were also investigated. A total of 151 composite samples in selected burnt and unburnt land use types (burnt crop field n=20; unburnt crop field n=27; burnt woodland n=53, unburnt woodland n=51) were analysed. The variables analysed were pH, soil organic carbon (SOC), total nitrogen (TN), available phosphorous (P), Exchangeable bases - potassium (K), magnesium (Mg), calcium (Ca), cation exchange and soil texture. Total N, SOC, pH and Ca differed significantly across the burnt and unburnt land-use types. A principal component analysis showed a stronger association and more positive gradient in woodlands than in crop fields. Total N showed a positive association with SOC, whereas silt showed a negative association to sand and clay. Traditional knowledge and perceptions of users of savanna agroforestry parklands can inform the formulation of local by-laws for community fire management as well as national policy regulation on fire use in the savanna through the interlinked analysis of social and ecological systems as have been elucidated in this study. The results on vegetation assessment revealed that fire practices and land uses influenced size class distribution of the two study species as well as the densities of woody species in traditional crop fields and the National Park. The unstable populations observed in most land uses and the absence of A. leiocarpa in crop fields and fallows call for education and policy actions on the use of fire in parklands of West Africa. Furthermore, fires positively influenced some soil properties in both woodlands and crop fields confirming one of the emphasised reasons why rural subsistence farmers use fire. As an environmental management decision and land use policy intervention, early dry season burning could be an option to curbing the indiscriminate and unplanned fire use. Also, the protection of trees on farm lands could check the unstable population structure of economically important woody species leading to the different structures that deviated from the recommended reverse J-shaped distribution curve observed in these agroforestry parklands. The management of socio-ecological systems such as the agroforestry parklands of West Africa require a holistic understanding of the complexity of the different resource systems, units and actors involved for sustainable management of these natural resources. , Thesis (PhD) -- Faculty of Science, Environmental Science, 2022
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Date Issued: 2022-10-14

Showing items 1 - 20 of 152

Co-management and social equity at Silaka and Hluleka Nature Reserves, South Africa

Exploring food waste narratives and perceptions in print media and in the urban community of Makhanda, in the Eastern Cape, South Africa

Exploring social learning practices for catchment management: a case study of two catchments in South Africa

Exploring the influence of power dynamics on collaborative governance in the Thukela Catchment

Potential futures: land management decision making in the Albertinia-Herbertsdale area of the Gouritz Cluster Biosphere Reserve

The assessment of abandoned cultivated lands: a case study of Lower Tsitsana and Hlankomo villages in the Tsitsa River catchment, Eastern Cape, South Africa

The spatial extent, practices, and impacts of illegal solid waste dumping across an income gradient in Makhanda and Knysna, South Africa

Implications of Lantana camara invasion on rural livelihoods and native woody species in the Kavango Zambezi Transfrontier Conservation Area, Zimbabwe

Wild edible plants in rural home gardens: livelihoods, perceptions, economic value & traditional knowledge

Acacia dealbata invasion and clearing in Upper Tsitsana communal areas of South Africa: human perceptions and ecological impacts

Drought impacts on livestock and crop production along an urban-rural gradient: perceptions and response strategies in the Eastern Cape province, South Africa

Marine plastic pollution impacts on ecosystem services and livelihoods in South Africa: a review and stakeholder perceptions

Status and potential of green infrastructure to support urban resilience in Zomba City, Malawi

Innovation in ecological restoration techniques: Enhancing Portulacaria afra survivorship in degraded arid thicket

Crop fields abandonment: assessing the dynamics of degradation in relation to leverage points for sustainable land management in the Macubeni catchment, South Africa

Factors influencing the number of non-timber forest product species used at the individual, household and village levels in Vhembe, Limpopo Province, South Africa

An analysis of inland fisheries resource use in the Eastern Cape, South Africa

Knowledge of and concern about global biodiversity loss vs local biodiversity loss in the Maputaland-Pondoland-Albany Hotspot (MPA)

The distribution and perceptions of invasive alien plants in small towns in the Eastern Cape province, South Africa

The impacts of anthropogenic fires in West African savanna woodlands and parklands: the case of the Guinea savanna, Ghana