The Camdeboo-Mountain Zebra mega-reserve as an opportunity to protect viable populations of medium- to large-sized mammals
- Authors: Davis, Kristen
- Date: 2024-04
- Subjects: Mammals -- Ecology -- South Africa -- Eastern Cape , Conservation of natural resources -- South Africa -- Eastern Cape , Wildlife conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/63711 , vital:73590
- Description: Conservation planning has focused extensively on representation of species in protected areas (PAs), rather than achieving the persistence of these species in PAs. Consequently, most PAs do not support viable populations of many species represented within them, particularly large mammals, resulting in extinction debt risks. The challenge is therefore to identify opportunities to achieve viable populations and to develop and implement conservation plans to achieve this, e.g., expand and connect existing PAs. A recent meta-analysis provides a minimum viable population (MVP) estimate of 5 000 individuals for mammals. This value was used as the target for modelling conservation opportunities for the South African endemic Cape mountain zebra (Equus zebra zebra), blesbok (Damaliscus pygargus phillipsi), black wildebeest (Connochaetes gnou) and co-existing medium- and large-sized mammal species. This study focused on the region between the Camdeboo and Mountain Zebra national parks (ca. 736 000 ha). Within the envisaged Camdeboo-Mountain Zebra (C-MZ) mega-reserve, a spreadsheet model was used to estimate potential herbivore population sizes, spatial requirement data were used to estimate potential omnivore and insectivore population sizes, and herbivore densities were used to estimate potential large carnivore population sizes. I show that 12 (the three endemic grazers and nine co-existing species) of the 28 modelled medium- and large-sized mammal species will potentially exceed 5 000 individuals, the MVP target, within the envisaged mega-reserve. The remaining 16 species show potential to reach substantial population sizes, however, will likely require ongoing metapopulation management. Using a conservation planning approach, I identify priority areas for the conservation of suitable habitat for Cape mountain zebra, blesbok, and black wildebeest within the envisaged mega-reserve, thus indirectly identifying priority areas for the conservation of these endemic species. I show that the potential incorporation of these priority areas within the envisaged mega-reserve will contribute considerably to the conservation of all focal species. In addition, the potential incorporation of these priority areas will contribute to PA expansion and significantly improve connectivity between existing PAs within the envisaged C-MZ mega-reserve. The importance of adequately-sized PAs to support viable populations of focal species is thus evident, and will ensure their long-term survival and ability to persist by allowing population and evolutionary scale processes. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2024
- Full Text:
- Date Issued: 2024-04
- Authors: Davis, Kristen
- Date: 2024-04
- Subjects: Mammals -- Ecology -- South Africa -- Eastern Cape , Conservation of natural resources -- South Africa -- Eastern Cape , Wildlife conservation -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/63711 , vital:73590
- Description: Conservation planning has focused extensively on representation of species in protected areas (PAs), rather than achieving the persistence of these species in PAs. Consequently, most PAs do not support viable populations of many species represented within them, particularly large mammals, resulting in extinction debt risks. The challenge is therefore to identify opportunities to achieve viable populations and to develop and implement conservation plans to achieve this, e.g., expand and connect existing PAs. A recent meta-analysis provides a minimum viable population (MVP) estimate of 5 000 individuals for mammals. This value was used as the target for modelling conservation opportunities for the South African endemic Cape mountain zebra (Equus zebra zebra), blesbok (Damaliscus pygargus phillipsi), black wildebeest (Connochaetes gnou) and co-existing medium- and large-sized mammal species. This study focused on the region between the Camdeboo and Mountain Zebra national parks (ca. 736 000 ha). Within the envisaged Camdeboo-Mountain Zebra (C-MZ) mega-reserve, a spreadsheet model was used to estimate potential herbivore population sizes, spatial requirement data were used to estimate potential omnivore and insectivore population sizes, and herbivore densities were used to estimate potential large carnivore population sizes. I show that 12 (the three endemic grazers and nine co-existing species) of the 28 modelled medium- and large-sized mammal species will potentially exceed 5 000 individuals, the MVP target, within the envisaged mega-reserve. The remaining 16 species show potential to reach substantial population sizes, however, will likely require ongoing metapopulation management. Using a conservation planning approach, I identify priority areas for the conservation of suitable habitat for Cape mountain zebra, blesbok, and black wildebeest within the envisaged mega-reserve, thus indirectly identifying priority areas for the conservation of these endemic species. I show that the potential incorporation of these priority areas within the envisaged mega-reserve will contribute considerably to the conservation of all focal species. In addition, the potential incorporation of these priority areas will contribute to PA expansion and significantly improve connectivity between existing PAs within the envisaged C-MZ mega-reserve. The importance of adequately-sized PAs to support viable populations of focal species is thus evident, and will ensure their long-term survival and ability to persist by allowing population and evolutionary scale processes. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2024
- Full Text:
- Date Issued: 2024-04
The effect of education on youth unemployment in South Africa
- Authors: Erasmus, Lana
- Date: 2024-04
- Subjects: Youth -- Employment -- South Africa , Unemployed youth -- South Africa , Youth -- South Africa -- Economic conditions
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/64975 , vital:73999
- Description: This study investigates the complex relationship between education and youth unemployment in South Africa, utilising data from the 2021 General Household Survey. Employing Logit and Probit models, the research analyses the impact of various factors on the likelihood of youth unemployment, such as education level, province, gender, age, race, type of institution, internet access, access to electricity, and household income. The findings of the study reveal that having a diploma, undergraduate degree, honours/postgraduate diploma, M-Tech, or master’s degree decreases the probability of youth unemployment. Factors such as being white, belonging to the age groups 25-29 or 30-34, and higher household income also reduce the likelihood of unemployment. However, residing in certain provinces such as Free State, KwaZulu-Natal, Northwest, or Limpopo increases the probability of youth unemployment. The sensitivity analysis establishes differences between provinces where mining activities are or are not the main industry. Notable variations include the impact of education on unemployment likelihood and demographic factors affecting different regions. In conclusion, this study contributes valuable insights to policymaking efforts aimed at addressing youth unemployment in South Africa. By examining the intricate connection between education and employment, the research advocates for targeted interventions to bridge the education-employment gap and cultivate a more inclusive labour market for the nation's youth. , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2024
- Full Text:
- Date Issued: 2024-04
- Authors: Erasmus, Lana
- Date: 2024-04
- Subjects: Youth -- Employment -- South Africa , Unemployed youth -- South Africa , Youth -- South Africa -- Economic conditions
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/64975 , vital:73999
- Description: This study investigates the complex relationship between education and youth unemployment in South Africa, utilising data from the 2021 General Household Survey. Employing Logit and Probit models, the research analyses the impact of various factors on the likelihood of youth unemployment, such as education level, province, gender, age, race, type of institution, internet access, access to electricity, and household income. The findings of the study reveal that having a diploma, undergraduate degree, honours/postgraduate diploma, M-Tech, or master’s degree decreases the probability of youth unemployment. Factors such as being white, belonging to the age groups 25-29 or 30-34, and higher household income also reduce the likelihood of unemployment. However, residing in certain provinces such as Free State, KwaZulu-Natal, Northwest, or Limpopo increases the probability of youth unemployment. The sensitivity analysis establishes differences between provinces where mining activities are or are not the main industry. Notable variations include the impact of education on unemployment likelihood and demographic factors affecting different regions. In conclusion, this study contributes valuable insights to policymaking efforts aimed at addressing youth unemployment in South Africa. By examining the intricate connection between education and employment, the research advocates for targeted interventions to bridge the education-employment gap and cultivate a more inclusive labour market for the nation's youth. , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2024
- Full Text:
- Date Issued: 2024-04
The horizontal application of the environmental right to juristic persons at sea
- Authors: Maseka, Ntemesha Mliwa
- Date: 2024-04
- Subjects: Economic zones (Law of the sea) , Law of the sea , Criminal liability of juristic persons -- South Africa , Environmental Law , Territorial waters
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/65739 , vital:74233
- Description: Due to its vast resources, the ocean has been designated the new “economic frontier”. States are focusing on unlocking this potential to boost economic growth, employment and innovation. Because of their substantial resources, corporations are key actors in driving the development of the ocean economy. Although corporations undeniably contribute significantly to realising the ocean economy’s potential, their main activities—including offshore oil and gas exploration and production and fishing—pose great threats to marine ecosystems. This harm to the marine environment may also threaten and adversely impact many people’s lives, health, well-being, livelihood, culture and traditions. In the South African context, this reality is notably seen through Operation Phakisa. This government initiative aims to unlock the economic potential of the ocean economy to expedite the implementation of solutions to poverty, unemployment and inequality. This race to utilise the oceans and its resources brings to the fore the interaction between the right to have the environment protected and socio-economic development anticipated in section 24 of the South African Constitution. The South African Constitution through section 8(2) acknowledges that non-State actors such as corporations can abuse human rights in horizontal relationships. However, unlike the State, non-State actors are only bound in certain circumstances. Therefore, this thesis examines whether and, if so, to what extent section 24 of the Constitution binds juristic persons at sea. This thesis examines the direct application of international norms to non-State actors to determine how international human rights law addresses non-State actors' conduct that impairs an individual’s guaranteed rights. It was determined that international human rights law has an indirect horizontal effect. This means that in cases where a non-State actor impairs an individual’s human rights, international law permits the victim to hold the State responsible for the violation rather than the non-State actor who was the perpetrator. For a non-State actor to incur direct obligations to uphold certain human rights, the State must create these obligations in its domestic law. The thesis explored how the South African Bill of Rights imposes direct human rights obligations on non-State actors in a horizontal dispute. It was found that whether an entrenched right binds a non-State actor depends on a multi-factor enquiry confirmed by the Constitutional Court. Based on that enquiry, it concluded that the environmental right is capable of and suitable for horizontal application. Furthermore, non-State actors can bear positive and negative constitutional human rights obligations arising from the environmental right. A failure to comply with these obligations would violate this constitutional right. The most significant findings of this thesis pertain to the applicability of South Africa’s human rights law framework at sea. This is because the legal regime applicable at sea differs from that on land. The United Nations Convention on the Law of the Sea assigns jurisdiction to States in the different maritime zones for different purposes. To elucidate South Africa's rights and obligations as delineated in the LOSC, the thesis focused on two examples: the exploitation of marine living resources and the prospection, exploration and exploitation of marine non-living resources. Subsequently, the extent to which South Africa has taken measures in its domestic law to implement those rights and duties was assessed. In addition, this approach was appropriate because questions concerning the horizontal application of the South African Bill of Rights necessitate contextual analysis and cannot be answered a priori and in the abstract. Using the multi-factor enquiry, the study showed that, in principle, section 24 of the Constitution might bind juristic persons within South Africa’s territorial jurisdiction, exclusive economic zone jurisdiction, continental shelf jurisdiction and under South Africa’s personal jurisdiction. Furthermore, juristic persons who control vessels registered in South Africa or control a vessel entitled to be registered in South Africa but has departed to a place outside South Africa without being registered might also be constitutionally bound based on flag State jurisdiction. The sole means of preventing South Africa from exercising its authority this way requires severing the jurisdictional connection between South Africa and the juristic person. It was recommended that in ocean-related matters, the connecting factor between South Africa and the juristic person must be considered as an additional factor in the enquiry to determine whether a particular right binds that juristic person. Additionally, since the scope of corresponding rights-holders are “everyone”, even people outside South Africa present in places where the juristic person who is the corresponding duty-bearer operates or where their conduct is felt can hold these actors accountable for their constitutional human rights obligations. , Thesis (LLD) -- Faculty of Law, Department of Public Law, 2024
- Full Text:
- Date Issued: 2024-04
- Authors: Maseka, Ntemesha Mliwa
- Date: 2024-04
- Subjects: Economic zones (Law of the sea) , Law of the sea , Criminal liability of juristic persons -- South Africa , Environmental Law , Territorial waters
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/65739 , vital:74233
- Description: Due to its vast resources, the ocean has been designated the new “economic frontier”. States are focusing on unlocking this potential to boost economic growth, employment and innovation. Because of their substantial resources, corporations are key actors in driving the development of the ocean economy. Although corporations undeniably contribute significantly to realising the ocean economy’s potential, their main activities—including offshore oil and gas exploration and production and fishing—pose great threats to marine ecosystems. This harm to the marine environment may also threaten and adversely impact many people’s lives, health, well-being, livelihood, culture and traditions. In the South African context, this reality is notably seen through Operation Phakisa. This government initiative aims to unlock the economic potential of the ocean economy to expedite the implementation of solutions to poverty, unemployment and inequality. This race to utilise the oceans and its resources brings to the fore the interaction between the right to have the environment protected and socio-economic development anticipated in section 24 of the South African Constitution. The South African Constitution through section 8(2) acknowledges that non-State actors such as corporations can abuse human rights in horizontal relationships. However, unlike the State, non-State actors are only bound in certain circumstances. Therefore, this thesis examines whether and, if so, to what extent section 24 of the Constitution binds juristic persons at sea. This thesis examines the direct application of international norms to non-State actors to determine how international human rights law addresses non-State actors' conduct that impairs an individual’s guaranteed rights. It was determined that international human rights law has an indirect horizontal effect. This means that in cases where a non-State actor impairs an individual’s human rights, international law permits the victim to hold the State responsible for the violation rather than the non-State actor who was the perpetrator. For a non-State actor to incur direct obligations to uphold certain human rights, the State must create these obligations in its domestic law. The thesis explored how the South African Bill of Rights imposes direct human rights obligations on non-State actors in a horizontal dispute. It was found that whether an entrenched right binds a non-State actor depends on a multi-factor enquiry confirmed by the Constitutional Court. Based on that enquiry, it concluded that the environmental right is capable of and suitable for horizontal application. Furthermore, non-State actors can bear positive and negative constitutional human rights obligations arising from the environmental right. A failure to comply with these obligations would violate this constitutional right. The most significant findings of this thesis pertain to the applicability of South Africa’s human rights law framework at sea. This is because the legal regime applicable at sea differs from that on land. The United Nations Convention on the Law of the Sea assigns jurisdiction to States in the different maritime zones for different purposes. To elucidate South Africa's rights and obligations as delineated in the LOSC, the thesis focused on two examples: the exploitation of marine living resources and the prospection, exploration and exploitation of marine non-living resources. Subsequently, the extent to which South Africa has taken measures in its domestic law to implement those rights and duties was assessed. In addition, this approach was appropriate because questions concerning the horizontal application of the South African Bill of Rights necessitate contextual analysis and cannot be answered a priori and in the abstract. Using the multi-factor enquiry, the study showed that, in principle, section 24 of the Constitution might bind juristic persons within South Africa’s territorial jurisdiction, exclusive economic zone jurisdiction, continental shelf jurisdiction and under South Africa’s personal jurisdiction. Furthermore, juristic persons who control vessels registered in South Africa or control a vessel entitled to be registered in South Africa but has departed to a place outside South Africa without being registered might also be constitutionally bound based on flag State jurisdiction. The sole means of preventing South Africa from exercising its authority this way requires severing the jurisdictional connection between South Africa and the juristic person. It was recommended that in ocean-related matters, the connecting factor between South Africa and the juristic person must be considered as an additional factor in the enquiry to determine whether a particular right binds that juristic person. Additionally, since the scope of corresponding rights-holders are “everyone”, even people outside South Africa present in places where the juristic person who is the corresponding duty-bearer operates or where their conduct is felt can hold these actors accountable for their constitutional human rights obligations. , Thesis (LLD) -- Faculty of Law, Department of Public Law, 2024
- Full Text:
- Date Issued: 2024-04
The horizontal application of the environmental right to Juristic persons at sea
- Authors: Maseka, Ntemesha Mwila
- Date: 2024-04
- Subjects: Environmental law--South Africa , Marine Living Resources Act , Marine environment
- Language: English
- Type: Doctorial theses , text
- Identifier: http://hdl.handle.net/10948/66098 , vital:74350
- Description: Due to its vast resources, the ocean has been designated the new “economic frontier”. States are focusing on unlocking this potential to boost economic growth, employment and innovation. Because of their substantial resources, corporations are key actors in driving the development of the ocean economy. Although corporations undeniably contribute significantly to realising the ocean economy’s potential, their main activities—including offshore oil and gas exploration and production and fishing—pose great threats to marine ecosystems. This harm to the marine environment may also threaten and adversely impact many people’s lives, health, well-being, livelihood, culture and traditions. In the South African context, this reality is notably seen through Operation Phakisa. This government initiative aims to unlock the economic potential of the ocean economy to expedite the implementation of solutions to poverty, unemployment and inequality. This race to utilise the oceans and its resources brings to the fore the interaction between the right to have the environment protected and socio-economic development anticipated in section 24 of the South African Constitution. The South African Constitution through section 8(2) acknowledges that non-State actors such as corporations can abuse human rights in horizontal relationships. However, unlike the State, non-State actors are only bound in certain circumstances. Therefore, this thesis examines whether and, if so, to what extent section 24 of the Constitution binds juristic persons at sea. This thesis examines the direct application of international norms to non-State actors to determine how international human rights law addresses non-State actors' conduct that impairs an individual’s guaranteed rights. It was determined that international human rights law has an indirect horizontal effect. This means that in cases where a non-State actor impairs an individual’s human rights, international law permits the victim to hold the State responsible for the violation rather than the non-State actor who was the perpetrator. For a non-State actor to incur direct obligations to uphold certain human rights, the State must create these obligations in its domestic law. The thesis explored how the South African Bill of Rights imposes direct human rights obligations on non-State actors in a horizontal dispute. It was found that whether an entrenched right binds a non-State actor depends on a multi-factor enquiry confirmed by the Constitutional Court. Based on that enquiry, it concluded that the environmental right is capable of and suitable for horizontal application. Furthermore, non-State actors can bear positive and negative constitutional human rights obligations arising from the environmental right. A failure to comply with these obligations would violate this constitutional right. The most significant findings of this thesis pertain to the applicability of South Africa’s human rights law framework at sea. This is because the legal regime applicable at sea differs from that on land. The United Nations Convention on the Law of the Sea assigns jurisdiction to States in the different maritime zones for different purposes. To elucidate South Africa's rights and obligations as delineated in the LOSC, the thesis focused on two examples: the exploitation of marine living resources and the prospection, exploration, and exploitation of marine non-living resources. Subsequently, the extent to which South Africa has taken measures in its domestic law to implement those rights and duties was assessed. In addition, this approach was appropriate because questions concerning the horizontal application of the South African Bill of Rights necessitate contextual analysis and cannot be answered a priori and in the abstract. Using the multi-factor enquiry, the study showed that, in principle, section 24 of the Constitution might bind juristic persons within South Africa’s territorial jurisdiction, exclusive economic zone jurisdiction, continental shelf jurisdiction and under South Africa’s personal jurisdiction. Furthermore, juristic persons who control vessels registered in South Africa or control a vessel entitled to be registered in South Africa but has departed to a place outside South Africa without being registered might also be constitutionally bound based on flag State jurisdiction. The sole means of preventing South Africa from exercising its authority this way requires severing the jurisdictional connection between South Africa and the juristic person. It was recommended that in ocean-related matters, the connecting factor between South Africa and the juristic person must be considered as an additional factor in the enquiry to determine whether a particular right binds that juristic person. Additionally, since the scope of corresponding rights-holders are “everyone”, even people outside South Africa present in places where the juristic person who is the corresponding duty- bearer operates or where their conduct is felt can hold these actors accountable for their constitutional human rights obligations. , Thesis (LLD) -- Faculty of Law, 2024
- Full Text:
- Date Issued: 2024-04
- Authors: Maseka, Ntemesha Mwila
- Date: 2024-04
- Subjects: Environmental law--South Africa , Marine Living Resources Act , Marine environment
- Language: English
- Type: Doctorial theses , text
- Identifier: http://hdl.handle.net/10948/66098 , vital:74350
- Description: Due to its vast resources, the ocean has been designated the new “economic frontier”. States are focusing on unlocking this potential to boost economic growth, employment and innovation. Because of their substantial resources, corporations are key actors in driving the development of the ocean economy. Although corporations undeniably contribute significantly to realising the ocean economy’s potential, their main activities—including offshore oil and gas exploration and production and fishing—pose great threats to marine ecosystems. This harm to the marine environment may also threaten and adversely impact many people’s lives, health, well-being, livelihood, culture and traditions. In the South African context, this reality is notably seen through Operation Phakisa. This government initiative aims to unlock the economic potential of the ocean economy to expedite the implementation of solutions to poverty, unemployment and inequality. This race to utilise the oceans and its resources brings to the fore the interaction between the right to have the environment protected and socio-economic development anticipated in section 24 of the South African Constitution. The South African Constitution through section 8(2) acknowledges that non-State actors such as corporations can abuse human rights in horizontal relationships. However, unlike the State, non-State actors are only bound in certain circumstances. Therefore, this thesis examines whether and, if so, to what extent section 24 of the Constitution binds juristic persons at sea. This thesis examines the direct application of international norms to non-State actors to determine how international human rights law addresses non-State actors' conduct that impairs an individual’s guaranteed rights. It was determined that international human rights law has an indirect horizontal effect. This means that in cases where a non-State actor impairs an individual’s human rights, international law permits the victim to hold the State responsible for the violation rather than the non-State actor who was the perpetrator. For a non-State actor to incur direct obligations to uphold certain human rights, the State must create these obligations in its domestic law. The thesis explored how the South African Bill of Rights imposes direct human rights obligations on non-State actors in a horizontal dispute. It was found that whether an entrenched right binds a non-State actor depends on a multi-factor enquiry confirmed by the Constitutional Court. Based on that enquiry, it concluded that the environmental right is capable of and suitable for horizontal application. Furthermore, non-State actors can bear positive and negative constitutional human rights obligations arising from the environmental right. A failure to comply with these obligations would violate this constitutional right. The most significant findings of this thesis pertain to the applicability of South Africa’s human rights law framework at sea. This is because the legal regime applicable at sea differs from that on land. The United Nations Convention on the Law of the Sea assigns jurisdiction to States in the different maritime zones for different purposes. To elucidate South Africa's rights and obligations as delineated in the LOSC, the thesis focused on two examples: the exploitation of marine living resources and the prospection, exploration, and exploitation of marine non-living resources. Subsequently, the extent to which South Africa has taken measures in its domestic law to implement those rights and duties was assessed. In addition, this approach was appropriate because questions concerning the horizontal application of the South African Bill of Rights necessitate contextual analysis and cannot be answered a priori and in the abstract. Using the multi-factor enquiry, the study showed that, in principle, section 24 of the Constitution might bind juristic persons within South Africa’s territorial jurisdiction, exclusive economic zone jurisdiction, continental shelf jurisdiction and under South Africa’s personal jurisdiction. Furthermore, juristic persons who control vessels registered in South Africa or control a vessel entitled to be registered in South Africa but has departed to a place outside South Africa without being registered might also be constitutionally bound based on flag State jurisdiction. The sole means of preventing South Africa from exercising its authority this way requires severing the jurisdictional connection between South Africa and the juristic person. It was recommended that in ocean-related matters, the connecting factor between South Africa and the juristic person must be considered as an additional factor in the enquiry to determine whether a particular right binds that juristic person. Additionally, since the scope of corresponding rights-holders are “everyone”, even people outside South Africa present in places where the juristic person who is the corresponding duty- bearer operates or where their conduct is felt can hold these actors accountable for their constitutional human rights obligations. , Thesis (LLD) -- Faculty of Law, 2024
- Full Text:
- Date Issued: 2024-04
The role of popular and traditional music during the umgidi initiation ceremonies among the Amampondo: subtitle if needed. If no subtitle follow instructions in manual
- Authors: Gushu, Lindokuhle
- Date: 2024-04
- Subjects: Xhosa (African people) -- Music , Folk music -- Social aspects -- South Africa -- Eastern Cape , Xhosa (African people) -- Rites and ceremonies , Popular music -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/62805 , vital:72962
- Description: This study investigates the intricate dynamics of music within the umgidi initiation ceremonies among the amaMpondo, focusing on the interplay between traditional and modern popular music. The study explores the cultural foundation of the umgidi ceremony, emphasising its transformative significance and the evolving influence of modern popular music, particularly among the youth. A comprehensive literature review follows, contextualising the amaMpondo, their cultural practices, and the complex relationship between traditional and popular music in the broader South African music scene. The study adopted a qualitative ethnographic approach, including participant observation and individual interviews, to explore the impact of modern popular music on traditional elements during umgidi initiation ceremonies. Thematic analysis was employed for data interpretation, ensuring a systematic exploration of patterns and meanings. Ethical considerations were meticulously addressed, emphasising protecting participants' rights and cultural sensitivity. The study's findings highlighted the multifaceted roles of music during umgidi initiation ceremonies. Music is a powerful medium for cultural expression, communication, and communal celebration. The call-and-response format, rhythm variations, and the influence of modern genres such as Gqom and Amapiano were explored. Community attitudes toward integrating modern popular music reveal diverse opinions, ranging from full embrace to resistance. In summary, this study contributes to understanding the evolving dynamics of music in umgidi initiation ceremonies among the amaMpondo. The study provides a nuanced exploration and a roadmap for future research, community engagement, and policy considerations by combining cultural insights, literature review, methodological rigour, and community perspectives. , Thesis (MMus) -- Faculty of Humanities, School of Visual and Performing Arts, 2023
- Full Text:
- Date Issued: 2024-04
- Authors: Gushu, Lindokuhle
- Date: 2024-04
- Subjects: Xhosa (African people) -- Music , Folk music -- Social aspects -- South Africa -- Eastern Cape , Xhosa (African people) -- Rites and ceremonies , Popular music -- South Africa -- Eastern Cape
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/62805 , vital:72962
- Description: This study investigates the intricate dynamics of music within the umgidi initiation ceremonies among the amaMpondo, focusing on the interplay between traditional and modern popular music. The study explores the cultural foundation of the umgidi ceremony, emphasising its transformative significance and the evolving influence of modern popular music, particularly among the youth. A comprehensive literature review follows, contextualising the amaMpondo, their cultural practices, and the complex relationship between traditional and popular music in the broader South African music scene. The study adopted a qualitative ethnographic approach, including participant observation and individual interviews, to explore the impact of modern popular music on traditional elements during umgidi initiation ceremonies. Thematic analysis was employed for data interpretation, ensuring a systematic exploration of patterns and meanings. Ethical considerations were meticulously addressed, emphasising protecting participants' rights and cultural sensitivity. The study's findings highlighted the multifaceted roles of music during umgidi initiation ceremonies. Music is a powerful medium for cultural expression, communication, and communal celebration. The call-and-response format, rhythm variations, and the influence of modern genres such as Gqom and Amapiano were explored. Community attitudes toward integrating modern popular music reveal diverse opinions, ranging from full embrace to resistance. In summary, this study contributes to understanding the evolving dynamics of music in umgidi initiation ceremonies among the amaMpondo. The study provides a nuanced exploration and a roadmap for future research, community engagement, and policy considerations by combining cultural insights, literature review, methodological rigour, and community perspectives. , Thesis (MMus) -- Faculty of Humanities, School of Visual and Performing Arts, 2023
- Full Text:
- Date Issued: 2024-04
Trophic ecology and breeding success of Brown Skuas (Catharacta antarctica)
- Authors: Walker, Tegan
- Date: 2024-04
- Subjects: Birds -- Conservation , Birds -- Ecology , Birds -- Behavior -- Evolution
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/64437 , vital:73710
- Description: Invasive species can impact island ecosystem processes by altering species interactions through direct competition for the same resources or by predation on insular species. Seabirds on sub-Antarctic islands are naïve to any new predators and are most at risk of local extirpation. Successful eradications of invasive mammals have yielded positive ecological responses from several seabird species. On sub-Antarctic Marion Island, populations of burrowing petrels, largely targeted by Feral Cats Felis catus, have indicated slow recovery despite the successful eradication of cats in the early 1990s. House Mice Mus musculus, have since proliferated on Marion Island, aided by a warmer climate, and are severely impacting several defenceless populations of burrowing petrels. In this thesis, I investigated the contemporary breeding productivity and diet of Brown Skuas Catharacta antarctica. At Marion Island, Brown Skua breeding productivity was associated to diet, which varied between years. Skuas feeding mostly on burrowing petrels exhibited higher breeding success than pairs mostly feeding on penguins. Higher contributions of burrowing petrels were seen in the contemporary diet of skuas compared to previous diet work. The importance of penguin prey compared to their 1980 and 2010/11 diet, was largely reduced during the 2021/22 and 2022/23 breeding seasons (53 and 51%, respectively) despite a historically high dependence on this prey (78% in 1980 and 67% in 2010/11). Penguin populations have been decreasing at the island and this may be reflected in the current skua diet. Breeding productivity was not influenced by the other factors tested, i.e. weather data (daily minimum, average and maximum air temperature; daily minimum, average, maximum wind speed; daily precipitation), distance to closest penguin colony, species of penguin or number of conspecifics in a 100 m radius around the nest. Brown Skuas breeding on Marion, Gough and Mayes islands were also used as biosamplers of burrowing petrels. These birds form a large part of the skua diet and are reflected in regurgitated skua pellets. Temporal comparisons for Marion Island indicated significant changes in burrowing petrel composition since the 1980s. Blue Petrels Halobaena caerulea and Salvin’s Prions Pachyptila salvini remained the highest contributors of skua pellets, but their proportions differed with three-fold increase in Blue Petrel and 25% decrease in Salvin’s Prion remains compared to previous studies. Further, my study indicated that smaller species of burrowing petrels such as the storm-petrels and diving petrels may be returning to Marion Island, 30 years after the eradication of cats. Pellet analyses at Marion, Gough and Mayes islands also indicated that skua diet may underrepresent larger species of petrels and soft-bodied prey. Despite these limitations, skua diet can indicate the presence of burrowing petrels during summer months, more so at Marion and Mayes islands than Gough Island, where pellet collection is difficult due to dense vegetation. Prey remains, such as wings in middens, may be a more appropriate method to investigate skua diet at Gough Island. Dominant burrowing petrels indicated by pellets at each island generally reflected the most abundant breeding species; Blue Petrels and Salvin’s Prions at Marion Island, Great Shearwaters Puffinus gravis and prion Pachyptila spp. at Gough Island, and Blue Petrels and Slender-billed Prions Pachyptila belcheri at Mayes Island. Pellets provide a non-invasive method for studying species of burrowing petrels that are challenging to monitor. This method is appropriate for studies conducted during summer months, while other studies (e.g., observations, camera traps, acoustic recordings and genetics) may be more reflective of the presence of burrowing species that breed in winter or could be used in combination with skua pellets during summer months. Population monitoring is an important part of conservation as it provides insights into population change. This thesis adds to the baseline data in terms of breeding productivity and updated trophic ecology of Brown Skuas, which will be used to inform the recovery of burrowing petrels once mice have been eradicated from Marion Island. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2024
- Full Text:
- Date Issued: 2024-04
- Authors: Walker, Tegan
- Date: 2024-04
- Subjects: Birds -- Conservation , Birds -- Ecology , Birds -- Behavior -- Evolution
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/64437 , vital:73710
- Description: Invasive species can impact island ecosystem processes by altering species interactions through direct competition for the same resources or by predation on insular species. Seabirds on sub-Antarctic islands are naïve to any new predators and are most at risk of local extirpation. Successful eradications of invasive mammals have yielded positive ecological responses from several seabird species. On sub-Antarctic Marion Island, populations of burrowing petrels, largely targeted by Feral Cats Felis catus, have indicated slow recovery despite the successful eradication of cats in the early 1990s. House Mice Mus musculus, have since proliferated on Marion Island, aided by a warmer climate, and are severely impacting several defenceless populations of burrowing petrels. In this thesis, I investigated the contemporary breeding productivity and diet of Brown Skuas Catharacta antarctica. At Marion Island, Brown Skua breeding productivity was associated to diet, which varied between years. Skuas feeding mostly on burrowing petrels exhibited higher breeding success than pairs mostly feeding on penguins. Higher contributions of burrowing petrels were seen in the contemporary diet of skuas compared to previous diet work. The importance of penguin prey compared to their 1980 and 2010/11 diet, was largely reduced during the 2021/22 and 2022/23 breeding seasons (53 and 51%, respectively) despite a historically high dependence on this prey (78% in 1980 and 67% in 2010/11). Penguin populations have been decreasing at the island and this may be reflected in the current skua diet. Breeding productivity was not influenced by the other factors tested, i.e. weather data (daily minimum, average and maximum air temperature; daily minimum, average, maximum wind speed; daily precipitation), distance to closest penguin colony, species of penguin or number of conspecifics in a 100 m radius around the nest. Brown Skuas breeding on Marion, Gough and Mayes islands were also used as biosamplers of burrowing petrels. These birds form a large part of the skua diet and are reflected in regurgitated skua pellets. Temporal comparisons for Marion Island indicated significant changes in burrowing petrel composition since the 1980s. Blue Petrels Halobaena caerulea and Salvin’s Prions Pachyptila salvini remained the highest contributors of skua pellets, but their proportions differed with three-fold increase in Blue Petrel and 25% decrease in Salvin’s Prion remains compared to previous studies. Further, my study indicated that smaller species of burrowing petrels such as the storm-petrels and diving petrels may be returning to Marion Island, 30 years after the eradication of cats. Pellet analyses at Marion, Gough and Mayes islands also indicated that skua diet may underrepresent larger species of petrels and soft-bodied prey. Despite these limitations, skua diet can indicate the presence of burrowing petrels during summer months, more so at Marion and Mayes islands than Gough Island, where pellet collection is difficult due to dense vegetation. Prey remains, such as wings in middens, may be a more appropriate method to investigate skua diet at Gough Island. Dominant burrowing petrels indicated by pellets at each island generally reflected the most abundant breeding species; Blue Petrels and Salvin’s Prions at Marion Island, Great Shearwaters Puffinus gravis and prion Pachyptila spp. at Gough Island, and Blue Petrels and Slender-billed Prions Pachyptila belcheri at Mayes Island. Pellets provide a non-invasive method for studying species of burrowing petrels that are challenging to monitor. This method is appropriate for studies conducted during summer months, while other studies (e.g., observations, camera traps, acoustic recordings and genetics) may be more reflective of the presence of burrowing species that breed in winter or could be used in combination with skua pellets during summer months. Population monitoring is an important part of conservation as it provides insights into population change. This thesis adds to the baseline data in terms of breeding productivity and updated trophic ecology of Brown Skuas, which will be used to inform the recovery of burrowing petrels once mice have been eradicated from Marion Island. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2024
- Full Text:
- Date Issued: 2024-04
Citizen science tools for engaged research: Water quality monitoring in remote communities
- Nqowana, Thandiswa, Fogel, Ronen, Bezerra, Joana C, Limson, Janice L
- Authors: Nqowana, Thandiswa , Fogel, Ronen , Bezerra, Joana C , Limson, Janice L
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480407 , vital:78439 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a17
- Description: Remote areas that lack conventional water-provisioning infrastructure often rely on rainwater harvesting, rivers, pans, reservoirs and borehole-extracted water to meet domestic water requirements. These water sources often have poor microbial quality and chemical composition, the quality of which is not routinely monitored. This study explored citizen science as a tool for Engaged Research and Responsible Research and Innovation, detailing the co-creation of a sustained community-based water quality monitoring program in collaboration with communities in villages in Amakhala Game Reserve (Eastern Cape, South Africa). Without access to other water sources, par ticipants predominantly used rainwater for drinking and cooking (80%), while borehole water was mainly used for cleaning and gardening due to its salty or bitter taste. A hydrogen sulfide (H2S) water testing kit was used by the citizen scientists to monitor the water quality. The H2S kits were effective in estimating bacterial contamination, showing a propor tional relationship with Coliler t® test results conducted in a laboratory. The alignment observed between community-based monitoring results and those derived from scientist-led testing underscores the value of data produced through citizen science initiatives. Sustained par ticipant engagement throughout this research reflected a sense of community empowerment through access to tools that inform their decisionmaking around water use and treatment as well as investment in the research, indicative of the perceived relevance of the research to community interests. This integration of transdisciplinary data sources holds promise for informing evidence-based decision-making processes, facilitating more effective and contextually informed water management strategies that value and integrate community perspectives alongside scientific insights.
- Full Text:
- Date Issued: 2024
- Authors: Nqowana, Thandiswa , Fogel, Ronen , Bezerra, Joana C , Limson, Janice L
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480407 , vital:78439 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a17
- Description: Remote areas that lack conventional water-provisioning infrastructure often rely on rainwater harvesting, rivers, pans, reservoirs and borehole-extracted water to meet domestic water requirements. These water sources often have poor microbial quality and chemical composition, the quality of which is not routinely monitored. This study explored citizen science as a tool for Engaged Research and Responsible Research and Innovation, detailing the co-creation of a sustained community-based water quality monitoring program in collaboration with communities in villages in Amakhala Game Reserve (Eastern Cape, South Africa). Without access to other water sources, par ticipants predominantly used rainwater for drinking and cooking (80%), while borehole water was mainly used for cleaning and gardening due to its salty or bitter taste. A hydrogen sulfide (H2S) water testing kit was used by the citizen scientists to monitor the water quality. The H2S kits were effective in estimating bacterial contamination, showing a propor tional relationship with Coliler t® test results conducted in a laboratory. The alignment observed between community-based monitoring results and those derived from scientist-led testing underscores the value of data produced through citizen science initiatives. Sustained par ticipant engagement throughout this research reflected a sense of community empowerment through access to tools that inform their decisionmaking around water use and treatment as well as investment in the research, indicative of the perceived relevance of the research to community interests. This integration of transdisciplinary data sources holds promise for informing evidence-based decision-making processes, facilitating more effective and contextually informed water management strategies that value and integrate community perspectives alongside scientific insights.
- Full Text:
- Date Issued: 2024
Factors influencing digital marketing adoption for female interpreneurs in small and medium enterprices of OR Thambo Municipality
- Authors: Maduna, Siyasanga
- Date: 2024
- Subjects: Digital Marketing
- Language: English
- Type: Masters theses , text
- Identifier: http://hdl.handle.net/11260/10065 , vital:74935
- Description: The rise of the Internet has transformed the business landscape, leading to the rapid growth of major online retailers and service providers like Amazon, Facebook, and Google, all of which play significant roles in the digital economy (Kannan, 2017). Global internet usage continues to grow, with South Africa not an exception. The research seeks to explore the factors influencing digital marketing adoption for female entrepreneurs on small and medium enterprise in OR Tambo municipality. This dissertation employs a quantitative research design. The study employs structural equation modelling (SEM) techniques to analyse a comprehensive dataset gathered from 313 female entrepreneurs. The findings reveal a nuanced relationship between adoption of digital marketing and business performance. The SEM results indicate that H4, have a positive influence on adoption of digital marketing, and H5, have a positive influence on business performance. The hypotheses H1; H2 and H3 had negative relationship on adoption on adoption of digital marketing hence they were rejection. The implications of these findings are discussed in the context of factors that influence the adoption of digital marketing on enhancing business performance for SME’s. The dissertation contributes to inclusive economic development, policy implications; educational interventions; strategic business imperative and social impact. Beyond the economic aspects, the study contributes to social impact by challenging and potentially reshaping societal norms and expectations regarding women's roles in business. This research not only advances the theoretical understanding of the link between adoption of digital marketing and business performance but also provides valuable insights for designing effective marketing strategies to improve business performance on female entrepreneurs. The dissertation concludes with suggestions for future research directions to further refine an understanding of the intricate dynamics involved in the relationship between adoption of digital marketing and business performance. , Thesis (Masters) -- Faculty of Economics and Financial Sciences, 2024
- Full Text:
- Date Issued: 2024
- Authors: Maduna, Siyasanga
- Date: 2024
- Subjects: Digital Marketing
- Language: English
- Type: Masters theses , text
- Identifier: http://hdl.handle.net/11260/10065 , vital:74935
- Description: The rise of the Internet has transformed the business landscape, leading to the rapid growth of major online retailers and service providers like Amazon, Facebook, and Google, all of which play significant roles in the digital economy (Kannan, 2017). Global internet usage continues to grow, with South Africa not an exception. The research seeks to explore the factors influencing digital marketing adoption for female entrepreneurs on small and medium enterprise in OR Tambo municipality. This dissertation employs a quantitative research design. The study employs structural equation modelling (SEM) techniques to analyse a comprehensive dataset gathered from 313 female entrepreneurs. The findings reveal a nuanced relationship between adoption of digital marketing and business performance. The SEM results indicate that H4, have a positive influence on adoption of digital marketing, and H5, have a positive influence on business performance. The hypotheses H1; H2 and H3 had negative relationship on adoption on adoption of digital marketing hence they were rejection. The implications of these findings are discussed in the context of factors that influence the adoption of digital marketing on enhancing business performance for SME’s. The dissertation contributes to inclusive economic development, policy implications; educational interventions; strategic business imperative and social impact. Beyond the economic aspects, the study contributes to social impact by challenging and potentially reshaping societal norms and expectations regarding women's roles in business. This research not only advances the theoretical understanding of the link between adoption of digital marketing and business performance but also provides valuable insights for designing effective marketing strategies to improve business performance on female entrepreneurs. The dissertation concludes with suggestions for future research directions to further refine an understanding of the intricate dynamics involved in the relationship between adoption of digital marketing and business performance. , Thesis (Masters) -- Faculty of Economics and Financial Sciences, 2024
- Full Text:
- Date Issued: 2024
Garden bird ringing at 3 Florence Street, Oatlands, Mkhanda (Grahamstown): the closing chapter
- Authors: Craig, Adrian J F K
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/449836 , vital:74856 , https://doi.org/10.15641/bo.1500
- Description: This is the third and final report summarizing 42 years of bird ringing in a garden in Mkhanda. In total, 2036 birds of 59 species were ringed, of which 217 individuals (27 species) were recaptured at least once, and 34 birds (17 species) were recovered dead.
- Full Text:
- Date Issued: 2024
- Authors: Craig, Adrian J F K
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/449836 , vital:74856 , https://doi.org/10.15641/bo.1500
- Description: This is the third and final report summarizing 42 years of bird ringing in a garden in Mkhanda. In total, 2036 birds of 59 species were ringed, of which 217 individuals (27 species) were recaptured at least once, and 34 birds (17 species) were recovered dead.
- Full Text:
- Date Issued: 2024
Local and national stakeholders collaborate to take on Prosopis invasions with biological control and biomass use in South Africa
- Ivey, Philip, Van Staden, Gretha, Harding, Graham, Oosthuizen, Dirk, Hoft, Elmarie, Van Staden, Philip, Anthonissen, Eben, Weaver, Kim, Hill, Martin P, Shackleton, Ross
- Authors: Ivey, Philip , Van Staden, Gretha , Harding, Graham , Oosthuizen, Dirk , Hoft, Elmarie , Van Staden, Philip , Anthonissen, Eben , Weaver, Kim , Hill, Martin P , Shackleton, Ross
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480506 , vital:78450 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a20
- Description: Research that directs the way stakeholders act and how they collaborate is essential when addressing complex environmental challenges in the field of sustainability science. For example, researchers attempting to manage Prosopis invasions through biological control in South Africa have historically faced challenges from stakeholders. In this study, we illustrate the impor tance of stakeholder engagement and social learning by outlining the collaborative effor ts of various stakeholders to promote effective, integrative and sustainable management of Prosopis invasions in the Nor thern Cape, South Africa. Through a community of practice approach, stakeholders worked together over the past half-decade in an attempt to develop a National Strategy for Prosopis management and improve its control. This strategy aimed not only to emphasise the need for integration of biomass use (aimed at offsetting the costs of mechanical clearing and necessary herbicide use) but also to underscore the significance of biocontrol alongside other management approaches. Stakeholders also identified that adequate farm-scale planning is necessary to provide a sense of purpose and assist in monitoring of progress. We worked alongside land managers and exper ts to develop such plans. The engagement of local champions played a crucial role in facilitating collaboration and learning among stakeholders, emphasising the significance of inclusive approaches in addressing complex sustainability challenges. In addition, we gained an understanding of how to develop the community of practice to enhance collaboration that ensures the implementation of plans to better manage Prosopis. Our findings underscore the necessity of meaningful stakeholder engagement and collaboration in effective invasive species management. By promoting understanding and involvement of diverse stakeholders, initiatives can have a greater impact in addressing broader sustainability issues.
- Full Text:
- Date Issued: 2024
- Authors: Ivey, Philip , Van Staden, Gretha , Harding, Graham , Oosthuizen, Dirk , Hoft, Elmarie , Van Staden, Philip , Anthonissen, Eben , Weaver, Kim , Hill, Martin P , Shackleton, Ross
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480506 , vital:78450 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a20
- Description: Research that directs the way stakeholders act and how they collaborate is essential when addressing complex environmental challenges in the field of sustainability science. For example, researchers attempting to manage Prosopis invasions through biological control in South Africa have historically faced challenges from stakeholders. In this study, we illustrate the impor tance of stakeholder engagement and social learning by outlining the collaborative effor ts of various stakeholders to promote effective, integrative and sustainable management of Prosopis invasions in the Nor thern Cape, South Africa. Through a community of practice approach, stakeholders worked together over the past half-decade in an attempt to develop a National Strategy for Prosopis management and improve its control. This strategy aimed not only to emphasise the need for integration of biomass use (aimed at offsetting the costs of mechanical clearing and necessary herbicide use) but also to underscore the significance of biocontrol alongside other management approaches. Stakeholders also identified that adequate farm-scale planning is necessary to provide a sense of purpose and assist in monitoring of progress. We worked alongside land managers and exper ts to develop such plans. The engagement of local champions played a crucial role in facilitating collaboration and learning among stakeholders, emphasising the significance of inclusive approaches in addressing complex sustainability challenges. In addition, we gained an understanding of how to develop the community of practice to enhance collaboration that ensures the implementation of plans to better manage Prosopis. Our findings underscore the necessity of meaningful stakeholder engagement and collaboration in effective invasive species management. By promoting understanding and involvement of diverse stakeholders, initiatives can have a greater impact in addressing broader sustainability issues.
- Full Text:
- Date Issued: 2024
South African birds in a Canadian museum: the legacy of colonial service by Lionel E Taylor
- Craig, Adrian J F K, Dean, W R J
- Authors: Craig, Adrian J F K , Dean, W R J
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/449550 , vital:74829 , https://doi.org/10.2989/00306525.2024.232
- Description: The Beaty Biodiversity Museum in Vancouver, British Columbia, Canada, holds a collection of 498 specimens of 275 bird species presented by Lionel E Taylor, who worked in South Africa for the Department of Forestry from 1902 to 1911. Most specimens are in very good condition, and many have date and locality information; about one-third were collected around Irene, outside Pretoria, in Gauteng province, where Taylor lived before relocating to Canada. Full details can be accessed from the museum’s website. The history and composition of this collection is described here briefly.
- Full Text:
- Date Issued: 2024
- Authors: Craig, Adrian J F K , Dean, W R J
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/449550 , vital:74829 , https://doi.org/10.2989/00306525.2024.232
- Description: The Beaty Biodiversity Museum in Vancouver, British Columbia, Canada, holds a collection of 498 specimens of 275 bird species presented by Lionel E Taylor, who worked in South Africa for the Department of Forestry from 1902 to 1911. Most specimens are in very good condition, and many have date and locality information; about one-third were collected around Irene, outside Pretoria, in Gauteng province, where Taylor lived before relocating to Canada. Full details can be accessed from the museum’s website. The history and composition of this collection is described here briefly.
- Full Text:
- Date Issued: 2024
Sustained use of marine subsidies promotes niche expansion in a wild felid
- Leighton, Gabriella R M, Froneman, P William, Serieys, Laurel E K, Bishop, Jacqueline M
- Authors: Leighton, Gabriella R M , Froneman, P William , Serieys, Laurel E K , Bishop, Jacqueline M
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/479374 , vital:78295 , https://doi.org/10.1016/j.scitotenv.2024.169912
- Description: The use of marine subsidies by terrestrial predators can facilitate substantial transfer of nutrients between marine and terrestrial ecosystems. Marine resource subsidies may have profound effects on predator ecology, influencing population and niche dynamics. Expanding niches of top consumers can impact ecosystem resilience and interspecific interactions, affecting predator-prey dynamics and competition. We investigate the occurrence, importance, and impact of marine resources on trophic ecology and niche dynamics in a highly generalist predator, the caracal (Caracal caracal), on the Cape Peninsula, South Africa. Caracals have flexible diets, feeding across a wide range of terrestrial and aquatic prey. We use carbon and nitrogen stable isotope analysis of fur samples (n = 75) to understand trophic position and niche shifts in coastal and inland foragers, as well as the implications of a diet rich in marine resources.
- Full Text:
- Date Issued: 2024
- Authors: Leighton, Gabriella R M , Froneman, P William , Serieys, Laurel E K , Bishop, Jacqueline M
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/479374 , vital:78295 , https://doi.org/10.1016/j.scitotenv.2024.169912
- Description: The use of marine subsidies by terrestrial predators can facilitate substantial transfer of nutrients between marine and terrestrial ecosystems. Marine resource subsidies may have profound effects on predator ecology, influencing population and niche dynamics. Expanding niches of top consumers can impact ecosystem resilience and interspecific interactions, affecting predator-prey dynamics and competition. We investigate the occurrence, importance, and impact of marine resources on trophic ecology and niche dynamics in a highly generalist predator, the caracal (Caracal caracal), on the Cape Peninsula, South Africa. Caracals have flexible diets, feeding across a wide range of terrestrial and aquatic prey. We use carbon and nitrogen stable isotope analysis of fur samples (n = 75) to understand trophic position and niche shifts in coastal and inland foragers, as well as the implications of a diet rich in marine resources.
- Full Text:
- Date Issued: 2024
The Price of Simplicity: Skewed and Regressive Taxation in Accra’s Informal Sector
- Anyidoho, Nana A, Gallien, Max, Rogan, Michael, Van den Boogaard, Vanessa
- Authors: Anyidoho, Nana A , Gallien, Max , Rogan, Michael , Van den Boogaard, Vanessa
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/478073 , vital:78152 , ISBN , DOI: 10.19088/ICTD.2024.044
- Description: International and domestic policymakers have long assumed that informal economies represent an ‘untapped goldmine’ for government coffers. While recent research has highlighted that many informal businesses do pay a range of formal and informal taxes, there has, to date, been little systematic account of their tax burdens. Using a novel dataset of 2,700 informal enterprises in the Accra metropolitan area, we explore the nature and impact of taxation in the informal sector. We find that the majority of informal sector operators pay a range of taxes and fees, which together amount to a significant burden, especially for low earners. These payments are skewed and regressive. Two additional findings emerge in relation to the structure of these taxes. First, the incidence and burden of tax payments is strongly correlated with visibility to the state. Second, taxes and fees are highly regressive, with lower-earning operators paying significantly more in relation to their earnings. These findings have important implications for efforts to tax informal businesses in low- and middle- income countries. The regressivity of efforts to tax the informal sector is often framed as a price worth paying for simplicity. Our study provides both an estimation of this ‘price’, and an underlying argument for collecting this kind of data on taxation of informal enterprises in order to assess real policy impacts.
- Full Text:
- Date Issued: 2024
- Authors: Anyidoho, Nana A , Gallien, Max , Rogan, Michael , Van den Boogaard, Vanessa
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/478073 , vital:78152 , ISBN , DOI: 10.19088/ICTD.2024.044
- Description: International and domestic policymakers have long assumed that informal economies represent an ‘untapped goldmine’ for government coffers. While recent research has highlighted that many informal businesses do pay a range of formal and informal taxes, there has, to date, been little systematic account of their tax burdens. Using a novel dataset of 2,700 informal enterprises in the Accra metropolitan area, we explore the nature and impact of taxation in the informal sector. We find that the majority of informal sector operators pay a range of taxes and fees, which together amount to a significant burden, especially for low earners. These payments are skewed and regressive. Two additional findings emerge in relation to the structure of these taxes. First, the incidence and burden of tax payments is strongly correlated with visibility to the state. Second, taxes and fees are highly regressive, with lower-earning operators paying significantly more in relation to their earnings. These findings have important implications for efforts to tax informal businesses in low- and middle- income countries. The regressivity of efforts to tax the informal sector is often framed as a price worth paying for simplicity. Our study provides both an estimation of this ‘price’, and an underlying argument for collecting this kind of data on taxation of informal enterprises in order to assess real policy impacts.
- Full Text:
- Date Issued: 2024
A feminist critical discourse analysis of male dominance and violence in Zakes Mda’s the Madonna of excelsior and Chimamanda Ngozi Adichie’s purple hibiscus
- Authors: Ibitoye, Antonia Folasade
- Date: 2023-12
- Subjects: Feminism and education , Feminism and literature
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/63320 , vital:73249
- Description: This study critically explored male dominance and violence in Africa, through the lens of South African author, Zakes Mda, and Nigerian author, Chimamanda Ngozi Adichie, in their novels, The Madonna of Excelsior (2004) and Purple Hibiscus (2003), respectively. Women globally often continue to live with male dominance, and this unequal gender structure has propelled feminists to commence movements to counter all forms of discrimination against women. For the study, excerpts from the two novels were used as data, to investigate male dominance and violence in Africa. To achieve the goals of this research, the study used socialist feminist theory, post-colonial feminist theory, and black feminist theory as the theoretical framework. This combined framework explicates that there is not just one system of oppression at the core of unequal treatment of women by men. Rather, it is a combination of structures related to social class, gender, race, sexuality, culture and society. Feminist critical discourse analysis (FCDA) was employed to analyse the data with the aid of ATLAS.ti software. FCDA was selected as an analytical framework because of its concern for the emancipation of women and social justice with transformation.What prompted the area of concern and the research problem of this study was an awareness of the extensive gender inequality in Nigeria and South Africa, which tends to be rooted in male dominance and violence. As a result, this study contributes to creating awareness of gender inequality, suggesting ways of combating violence against women and female suppression as well as promoting new conceptualisations of masculinity, femininity, and inequality. This research study explored how language use constructed identity, gender, and power relations and how these have reflected male dominance, and violence in Africa in the novels chosen for this study. This study is significant because it did not only analysed the marginalisation and suppression of the female gender but further exposed the strategies that were adopted by women to confront patriarchal oppression and domination as well as the resultant effect on the perpetrators as depicted in the novels for this study. The distinctiveness of this study can be viewed from three different perspectives. Firstly, it is one of the first research works to use FCDA to address the social problems of male dominance and violence. Secondly, it is the first research work which recognises the use of the novel as an essential source of data for FCDA on male dominance and violence. Using the novel as a data source supports the fact that novels are relevant data sources because 5 they often reflect the happenings in society, such as the incidence of gender inequality. Lastly, this project is distinctive because of its ability to combine socialist feminist theory, black feminist theory, post-colonial feminist theory as the theoretical framework and FCDA as the methodological approach. The study is limited to two novels from two African writers because the novels are reflections of the challenges faced by women in Africa and because of the novelists’ unique use of language and the representation of male dominance, violence and female suppression in Africa. The choice to restrict the scope of the study to Africa, selecting Nigeria and South Africa was because, both novels are set in African context and also as a result of the gravity of the identified social and equity issues in Africa. For further research, the study could be extended beyond the African continent to other continents. By so doing, other feminist theories could be used while FCDA could still be used as an analytical framework. Furthermore, a comparative analysis of male dominance and violence between South Africa and Nigeria could also be explored or between Africa and the western world. This study, therefore, explored how language use constructed gender identity and how this reflected male dominance and violence in Africa through the novels, which provided the data for analysis. Following the principles of FCDA, the study sought to create social awareness and to build an understanding of the need not only to resist male dominance and violence but to extend understandings of gender differences with the intention of generating a collective change and transformation in society for gender equality. , Thesis (PhD) -- Faculty of Humanities, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Ibitoye, Antonia Folasade
- Date: 2023-12
- Subjects: Feminism and education , Feminism and literature
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/63320 , vital:73249
- Description: This study critically explored male dominance and violence in Africa, through the lens of South African author, Zakes Mda, and Nigerian author, Chimamanda Ngozi Adichie, in their novels, The Madonna of Excelsior (2004) and Purple Hibiscus (2003), respectively. Women globally often continue to live with male dominance, and this unequal gender structure has propelled feminists to commence movements to counter all forms of discrimination against women. For the study, excerpts from the two novels were used as data, to investigate male dominance and violence in Africa. To achieve the goals of this research, the study used socialist feminist theory, post-colonial feminist theory, and black feminist theory as the theoretical framework. This combined framework explicates that there is not just one system of oppression at the core of unequal treatment of women by men. Rather, it is a combination of structures related to social class, gender, race, sexuality, culture and society. Feminist critical discourse analysis (FCDA) was employed to analyse the data with the aid of ATLAS.ti software. FCDA was selected as an analytical framework because of its concern for the emancipation of women and social justice with transformation.What prompted the area of concern and the research problem of this study was an awareness of the extensive gender inequality in Nigeria and South Africa, which tends to be rooted in male dominance and violence. As a result, this study contributes to creating awareness of gender inequality, suggesting ways of combating violence against women and female suppression as well as promoting new conceptualisations of masculinity, femininity, and inequality. This research study explored how language use constructed identity, gender, and power relations and how these have reflected male dominance, and violence in Africa in the novels chosen for this study. This study is significant because it did not only analysed the marginalisation and suppression of the female gender but further exposed the strategies that were adopted by women to confront patriarchal oppression and domination as well as the resultant effect on the perpetrators as depicted in the novels for this study. The distinctiveness of this study can be viewed from three different perspectives. Firstly, it is one of the first research works to use FCDA to address the social problems of male dominance and violence. Secondly, it is the first research work which recognises the use of the novel as an essential source of data for FCDA on male dominance and violence. Using the novel as a data source supports the fact that novels are relevant data sources because 5 they often reflect the happenings in society, such as the incidence of gender inequality. Lastly, this project is distinctive because of its ability to combine socialist feminist theory, black feminist theory, post-colonial feminist theory as the theoretical framework and FCDA as the methodological approach. The study is limited to two novels from two African writers because the novels are reflections of the challenges faced by women in Africa and because of the novelists’ unique use of language and the representation of male dominance, violence and female suppression in Africa. The choice to restrict the scope of the study to Africa, selecting Nigeria and South Africa was because, both novels are set in African context and also as a result of the gravity of the identified social and equity issues in Africa. For further research, the study could be extended beyond the African continent to other continents. By so doing, other feminist theories could be used while FCDA could still be used as an analytical framework. Furthermore, a comparative analysis of male dominance and violence between South Africa and Nigeria could also be explored or between Africa and the western world. This study, therefore, explored how language use constructed gender identity and how this reflected male dominance and violence in Africa through the novels, which provided the data for analysis. Following the principles of FCDA, the study sought to create social awareness and to build an understanding of the need not only to resist male dominance and violence but to extend understandings of gender differences with the intention of generating a collective change and transformation in society for gender equality. , Thesis (PhD) -- Faculty of Humanities, 2023
- Full Text:
- Date Issued: 2023-12
A framework to improve supply chain performance through lead time management in Ugandan public health institutions
- Authors: Kabagenyi, Dorothy
- Date: 2023-12
- Subjects: Lean manufacturing -- Management , Business logistics -- Uganda , Medical care -- Uganda , Industrial procurement Inventory control
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/65633 , vital:74213
- Description: A well-organised public healthcare supply chain leads to easy accessibility of medical supplies. In order to have healthy populations, it is important for governments to have the required medical supplies in their healthcare facilities at the required time. As such, appropriate lead time management by supply chain actors greatly improves supply chain performance. However, the current public healthcare supply chains in Uganda have challenges that lead to poor quality and inefficient public health supply chain performance. The primary objective of this study was to develop an implementation framework to guide public health institutions in improving supply chain performance through lead time management in Uganda. The study also sought to determine the influence of supply chain optimisation on lead time management. It also sought to examine the influence of supply chain dynamic capabilities on lead time management. The study further examined the influence of supplier performance on lead time management, and sought to examine the influence of lead time management on supply chain performance. The study also sought to assess the mediating effect of lead time management on the relationship between supply chain dynamic capabilities and overall supply chain performance, between supply chain optimisation and overall supply chain performance, as well as between supplier performance and overall supply chain performance. Lastly, the study sought to assess the mediation effect of supply chain optimisation on the relationship between supplier performance and lead time management as well as between supply chain dynamic capabilities and lead time management. A positivist philosophy that allowed quantitative data to be collected from 340 respondents was used in this study. The study used both stratified sampling and simple random sampling without replacement to choose the public healthcare facilities as well as purposive sampling to select the final respondents for the study. An exploratory factor analysis (EFA) was performed in the Statistical Package for Social Sciences (SPSS) Version 25 for factor reduction and dimensional groupings. Confirmatory factor analysis (CFA) and structural equation modeling (SEM) path analysis models were performed in the Analysis of Moments of Structure (AMOS Version 27) software for model fit assessments and hypotheses testing, respectively. A multiple regression analysis was performed in SPSS Version 25 software, and was used for comparison and confirmation of the weak and insignificant result obtained for the unsupported hypothesis (H4) in the SEM hypotheses tests. , Thesis (PhD) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Kabagenyi, Dorothy
- Date: 2023-12
- Subjects: Lean manufacturing -- Management , Business logistics -- Uganda , Medical care -- Uganda , Industrial procurement Inventory control
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/65633 , vital:74213
- Description: A well-organised public healthcare supply chain leads to easy accessibility of medical supplies. In order to have healthy populations, it is important for governments to have the required medical supplies in their healthcare facilities at the required time. As such, appropriate lead time management by supply chain actors greatly improves supply chain performance. However, the current public healthcare supply chains in Uganda have challenges that lead to poor quality and inefficient public health supply chain performance. The primary objective of this study was to develop an implementation framework to guide public health institutions in improving supply chain performance through lead time management in Uganda. The study also sought to determine the influence of supply chain optimisation on lead time management. It also sought to examine the influence of supply chain dynamic capabilities on lead time management. The study further examined the influence of supplier performance on lead time management, and sought to examine the influence of lead time management on supply chain performance. The study also sought to assess the mediating effect of lead time management on the relationship between supply chain dynamic capabilities and overall supply chain performance, between supply chain optimisation and overall supply chain performance, as well as between supplier performance and overall supply chain performance. Lastly, the study sought to assess the mediation effect of supply chain optimisation on the relationship between supplier performance and lead time management as well as between supply chain dynamic capabilities and lead time management. A positivist philosophy that allowed quantitative data to be collected from 340 respondents was used in this study. The study used both stratified sampling and simple random sampling without replacement to choose the public healthcare facilities as well as purposive sampling to select the final respondents for the study. An exploratory factor analysis (EFA) was performed in the Statistical Package for Social Sciences (SPSS) Version 25 for factor reduction and dimensional groupings. Confirmatory factor analysis (CFA) and structural equation modeling (SEM) path analysis models were performed in the Analysis of Moments of Structure (AMOS Version 27) software for model fit assessments and hypotheses testing, respectively. A multiple regression analysis was performed in SPSS Version 25 software, and was used for comparison and confirmation of the weak and insignificant result obtained for the unsupported hypothesis (H4) in the SEM hypotheses tests. , Thesis (PhD) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2023
- Full Text:
- Date Issued: 2023-12
An application of the Mundell Fleming model in emerging market economies
- Authors: Tenderere, Morris
- Date: 2023-12
- Subjects: Macroeconomics , Foreign exchange rates , International economic relations
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66039 , vital:74319
- Description: The core objective of this study was to test the applicability of the Mundell-Fleming model in emerging market economies. Despite its importance, no study has examined the applicability of the Mundell-Fleming model in emerging market economies, as far as this study is aware. The Mundell-Fleming model predicts that in an environment with freely floating exchange rates, a drop in interest rates will lead to capital flight, which in turn will result in a fall in the exchange rate and a rise in net exports. The model takes into account both the international flow of capital and the flow of goods and services that might have a big impact on the country. The model's theoretical foundations offer practical instruments for assessing the impact of economic policy in light of the adopted exchange rate regimes of a nation. The model plays a key role in anticipating the link between output, interest rates, and exchange rates. A quantitative approach using panel monthly data over the period 2000 to 2017 for five emerging countries was carried out. Brazil, Malaysia, China, India, and South Africa were the considered countries due to availability of data. The Dynamic Ordinary Least Square (DOLS) and Fully Modified Ordinary Least Square (FMOLS) were used to analyse the data. The study confirmed the applicability of the Mundell-Fleming model in the studied countries given a positive relationship between interest rate and portfolio investment. This result means that when interest rates rise, capital flows also increase. In addition, the confirmation of Mundell-Fleming model is reflected in the negative relationship between portfolio investment and the rate of exchange. The Mundell-Fleming model describes how movement of capital and exchange rates behave. The study recommended that to ease the threat of currency appreciation, the Central Banks in merging market economies must ensure that the domestic interest rate is always in line with the world interest rate. This will promote exchange rate stability and whenever there is an appreciation/depreciation the Central Banks must use interest rates to bring back the exchange rate to the desired rate. In emerging market economies, the reserve banks must employ what is referred to as the "sterilization" of capital flows to lessen the threat of currency appreciation. The local component of the monetary base (bank reserves plus currency) is decreased in a successful sterilization operation to counteract the reserve influx, at least temporarily. , Thesis (PhD) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Tenderere, Morris
- Date: 2023-12
- Subjects: Macroeconomics , Foreign exchange rates , International economic relations
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66039 , vital:74319
- Description: The core objective of this study was to test the applicability of the Mundell-Fleming model in emerging market economies. Despite its importance, no study has examined the applicability of the Mundell-Fleming model in emerging market economies, as far as this study is aware. The Mundell-Fleming model predicts that in an environment with freely floating exchange rates, a drop in interest rates will lead to capital flight, which in turn will result in a fall in the exchange rate and a rise in net exports. The model takes into account both the international flow of capital and the flow of goods and services that might have a big impact on the country. The model's theoretical foundations offer practical instruments for assessing the impact of economic policy in light of the adopted exchange rate regimes of a nation. The model plays a key role in anticipating the link between output, interest rates, and exchange rates. A quantitative approach using panel monthly data over the period 2000 to 2017 for five emerging countries was carried out. Brazil, Malaysia, China, India, and South Africa were the considered countries due to availability of data. The Dynamic Ordinary Least Square (DOLS) and Fully Modified Ordinary Least Square (FMOLS) were used to analyse the data. The study confirmed the applicability of the Mundell-Fleming model in the studied countries given a positive relationship between interest rate and portfolio investment. This result means that when interest rates rise, capital flows also increase. In addition, the confirmation of Mundell-Fleming model is reflected in the negative relationship between portfolio investment and the rate of exchange. The Mundell-Fleming model describes how movement of capital and exchange rates behave. The study recommended that to ease the threat of currency appreciation, the Central Banks in merging market economies must ensure that the domestic interest rate is always in line with the world interest rate. This will promote exchange rate stability and whenever there is an appreciation/depreciation the Central Banks must use interest rates to bring back the exchange rate to the desired rate. In emerging market economies, the reserve banks must employ what is referred to as the "sterilization" of capital flows to lessen the threat of currency appreciation. The local component of the monetary base (bank reserves plus currency) is decreased in a successful sterilization operation to counteract the reserve influx, at least temporarily. , Thesis (PhD) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2023
- Full Text:
- Date Issued: 2023-12
Arts-based participatory research for more equitable ocean governance in South Africa
- Authors: Strand, Mia
- Date: 2023-12
- Subjects: Marine resources conservation , Marine resources development , Law of the sea
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66017 , vital:74307
- Description: This research explored the usefulness of arts-based participatory research (ABPR) in identifying more equitable ocean governance in South Africa. Co-developing the ABPR with Indigenous and local knowledge holders as co-researchers, the research expanded on opportunities to inform more equitable marine spatial planning (MSP) and marine protected areas (MPAs) processes. Working with 24 co-researchers in Algoa Bay (Eastern Cape) and 24 co-researchers in Mandeni (KwaZulu-Natal) for over two years, the thesis formulated and contextually adapted an approach incorporating photovoice and digital storytelling for co-researchers to share their ocean knowledges, priorities and stories. As people hold various priorities, interests and knowledges of the ocean, these knowledges shape how people interact with the ocean and coast. Despite a multitude of interconnected and complex ocean knowledges (pluriversality), a growing body of literature describes the exclusionary, top-down and inequitable nature of area-based ocean management in South Africa, which do not recognise Indigenous and local knowledge systems (ILKS). The research was conceptualised as a response to these realities, and the ABPR processes were developed with knowledge holders who felt excluded from current ocean governance approaches. Working within a broader theoretical framework of social and environmental justice, the research drew on contextually relevant literature and theoretical paradigms such as social sustainability, social-ecological systems, decolonial and postcolonial theory, social learning, transdisciplinary knowledge co-production and arts-based research. The ABPR methods were carefully crafted together with co-researchers, and photovoice experts assisted with cross-learning workshops. The ABPR included in situ photography and storytelling processes to ensure co-researchers could convey embodied, daily lived experiences or re-imagined connections with the ocean and coast. Embracing and reclaiming world-making through processes of participatory community mapping, the ABPR also facilitated collaborative analysis of co-researchers’ relationships and interactions with the ocean in light of current MSP and MPA processes. The final photostories from the ABPR processes were shared by the co-researchers at two multimedia exhibitions and two multi-stakeholder workshops that brought together relevant government representatives, coastal managers, conservation authorities, scientists and local community members. The results from the ABPR processes provided a number of novel and significant insights into ocean knowledges, connections and priorities that are currently not recognised in ocean governance processes in South Africa. Specifically, the ABPR proved useful in highlighting strong spiritual and traditional connections to the ocean and facilitating direct engagements and social learning processes between various ocean priorities to start bridging the gap between ILKS, marine science and ocean decision-making. Furthermore, the ABPR was valuable in mapping sociocultural priorities and interactions with the ocean, which could inform more inclusive and equitable MSP and MPAs processes. The ABPR surfaced opportunities for cognitive justice, where ILKS holders could own the knowledge production process, and identify opportunities for greater co-management in ocean decision-making. The insights from the research are relevant for several disciplines, research practices, and ocean governance processes. In summary, the ABPR process was useful to identify practical approaches and pathways necessary for embracing and working with the complexity of social-ecological marine systems and the plurality of ocean knowledges for more equitable ocean futures. , Thesis (DPhil) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Strand, Mia
- Date: 2023-12
- Subjects: Marine resources conservation , Marine resources development , Law of the sea
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/66017 , vital:74307
- Description: This research explored the usefulness of arts-based participatory research (ABPR) in identifying more equitable ocean governance in South Africa. Co-developing the ABPR with Indigenous and local knowledge holders as co-researchers, the research expanded on opportunities to inform more equitable marine spatial planning (MSP) and marine protected areas (MPAs) processes. Working with 24 co-researchers in Algoa Bay (Eastern Cape) and 24 co-researchers in Mandeni (KwaZulu-Natal) for over two years, the thesis formulated and contextually adapted an approach incorporating photovoice and digital storytelling for co-researchers to share their ocean knowledges, priorities and stories. As people hold various priorities, interests and knowledges of the ocean, these knowledges shape how people interact with the ocean and coast. Despite a multitude of interconnected and complex ocean knowledges (pluriversality), a growing body of literature describes the exclusionary, top-down and inequitable nature of area-based ocean management in South Africa, which do not recognise Indigenous and local knowledge systems (ILKS). The research was conceptualised as a response to these realities, and the ABPR processes were developed with knowledge holders who felt excluded from current ocean governance approaches. Working within a broader theoretical framework of social and environmental justice, the research drew on contextually relevant literature and theoretical paradigms such as social sustainability, social-ecological systems, decolonial and postcolonial theory, social learning, transdisciplinary knowledge co-production and arts-based research. The ABPR methods were carefully crafted together with co-researchers, and photovoice experts assisted with cross-learning workshops. The ABPR included in situ photography and storytelling processes to ensure co-researchers could convey embodied, daily lived experiences or re-imagined connections with the ocean and coast. Embracing and reclaiming world-making through processes of participatory community mapping, the ABPR also facilitated collaborative analysis of co-researchers’ relationships and interactions with the ocean in light of current MSP and MPA processes. The final photostories from the ABPR processes were shared by the co-researchers at two multimedia exhibitions and two multi-stakeholder workshops that brought together relevant government representatives, coastal managers, conservation authorities, scientists and local community members. The results from the ABPR processes provided a number of novel and significant insights into ocean knowledges, connections and priorities that are currently not recognised in ocean governance processes in South Africa. Specifically, the ABPR proved useful in highlighting strong spiritual and traditional connections to the ocean and facilitating direct engagements and social learning processes between various ocean priorities to start bridging the gap between ILKS, marine science and ocean decision-making. Furthermore, the ABPR was valuable in mapping sociocultural priorities and interactions with the ocean, which could inform more inclusive and equitable MSP and MPAs processes. The ABPR surfaced opportunities for cognitive justice, where ILKS holders could own the knowledge production process, and identify opportunities for greater co-management in ocean decision-making. The insights from the research are relevant for several disciplines, research practices, and ocean governance processes. In summary, the ABPR process was useful to identify practical approaches and pathways necessary for embracing and working with the complexity of social-ecological marine systems and the plurality of ocean knowledges for more equitable ocean futures. , Thesis (DPhil) -- Faculty of Business and Economic Sciences, School of Economics, Development and Tourism, 2023
- Full Text:
- Date Issued: 2023-12
Assessing the effects of fish stock management on Cape gannet foraging behaviour in South Africa
- Strydom, Zanri, Grémillet, David, Pichegru, Lorien
- Authors: Strydom, Zanri , Grémillet, David , Pichegru, Lorien
- Date: 2023-12
- Subjects: Gannets -- South Africa , Birds of prey -- Behavior -- South Africa , Fish stock assessment
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/62622 , vital:72887
- Description: Seabirds are one of the most threatened groups of birds under both marine and terrestrial pressures. Among seabirds, the Cape gannet Morus capensis is a southern African endemic species facing several pressures of anthropogenic origin, including competition with industrial fisheries on small pelagic fish stocks. Cape gannets, being a long-lived species that is sensitive to environmental changes, are sentinels of change in oceanic environments granting it important to understand which factors influence their foraging behaviour and breeding outputs. For example, factors like age can result in a loss of physical capabilities which can lead to behavioral compensation and subsequent changes in chick provisioning rates and amounts. With the current fisheries management the fish stocks are continually decreasing, indicating the importance of an updated fine-scale assessment on the spatiotemporal overlap between foraging gannets and fisheries. The first objective of this thesis was to determine the influence of adult Cape gannets’ age and sex on their foraging characteristics and energy expenditure during foraging. I equipped chick-rearing Cape gannets of known age and sex with a 3D accelerometer and GPS device. Foraging effort (trip duration, foraging path and maximum distance to the nest) did not differ between sexes nor with age in Cape gannets. Both sexes rested less on the water with age. Aging females also spent more time in flight than males. The age- and sexual differences in energy expenditure prevalent in our study might reflect niche and/or risk partitioning strategies to ensure adequate provisioning to the chick. The second objective of this thesis was to determine the influence of fisheries catch rates, sardine and anchovy biomass, and adult foraging effort on chick growth rates in Cape gannets, using a long-term dataset collected between 2005 and 2020 on Malgas Island. I equipped chick-rearing adults with a GPS device and I weighed the chicks for between 3 to 6 increments to calculate the average daily mass increment. Of all the variables, foraging trip duration was the main determinant of daily growth rates, with chicks benefitting from parents’ shorter foraging trip durations. Chicks tended to grow slower when fisheries catch of sardine and anchovy were higher, possibly an effect of competition with fisheries. Chicks also grew faster when fish biomass was higher. This long-term monitoring demonstrated the possible effect of food competition between Cape gannets and fisheries, with negative impacts on gannet fitness as determined via chick growth rates. The third objective of this thesis was to determine the influence of both the biomass and fisheries catch rates of sardine and anchovy on Cape gannet foraging effort at a spatial and temporal scale. This was achieved by equipping a total of 668 chick-rearing Cape gannets with a GPS device. With an increase in fisheries catch there was an increase in the birds’ foraging effort. To reduce competition between the gannets and fisheries, the gannets’ core foraging areas seldomly overlapped with the fisheries catch locations, at the cost of the gannets’ increased foraging effort. One method to halt the Cape gannet population decline would be to conserve the fish resources close to the breeding colonies. This would reduce the birds’ foraging whereby increasing their fitness. Safeguarding small pelagic fish to ensure the perseverance of the remaining Benguela seabird populations, would lead to preserving the Benguela marine ecosystem as a whole. My study provided new insight into effects of fish stock management on Cape gannet foraging behaviour in South Africa, and the need for adequate management to ensure population persistence. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Strydom, Zanri , Grémillet, David , Pichegru, Lorien
- Date: 2023-12
- Subjects: Gannets -- South Africa , Birds of prey -- Behavior -- South Africa , Fish stock assessment
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/62622 , vital:72887
- Description: Seabirds are one of the most threatened groups of birds under both marine and terrestrial pressures. Among seabirds, the Cape gannet Morus capensis is a southern African endemic species facing several pressures of anthropogenic origin, including competition with industrial fisheries on small pelagic fish stocks. Cape gannets, being a long-lived species that is sensitive to environmental changes, are sentinels of change in oceanic environments granting it important to understand which factors influence their foraging behaviour and breeding outputs. For example, factors like age can result in a loss of physical capabilities which can lead to behavioral compensation and subsequent changes in chick provisioning rates and amounts. With the current fisheries management the fish stocks are continually decreasing, indicating the importance of an updated fine-scale assessment on the spatiotemporal overlap between foraging gannets and fisheries. The first objective of this thesis was to determine the influence of adult Cape gannets’ age and sex on their foraging characteristics and energy expenditure during foraging. I equipped chick-rearing Cape gannets of known age and sex with a 3D accelerometer and GPS device. Foraging effort (trip duration, foraging path and maximum distance to the nest) did not differ between sexes nor with age in Cape gannets. Both sexes rested less on the water with age. Aging females also spent more time in flight than males. The age- and sexual differences in energy expenditure prevalent in our study might reflect niche and/or risk partitioning strategies to ensure adequate provisioning to the chick. The second objective of this thesis was to determine the influence of fisheries catch rates, sardine and anchovy biomass, and adult foraging effort on chick growth rates in Cape gannets, using a long-term dataset collected between 2005 and 2020 on Malgas Island. I equipped chick-rearing adults with a GPS device and I weighed the chicks for between 3 to 6 increments to calculate the average daily mass increment. Of all the variables, foraging trip duration was the main determinant of daily growth rates, with chicks benefitting from parents’ shorter foraging trip durations. Chicks tended to grow slower when fisheries catch of sardine and anchovy were higher, possibly an effect of competition with fisheries. Chicks also grew faster when fish biomass was higher. This long-term monitoring demonstrated the possible effect of food competition between Cape gannets and fisheries, with negative impacts on gannet fitness as determined via chick growth rates. The third objective of this thesis was to determine the influence of both the biomass and fisheries catch rates of sardine and anchovy on Cape gannet foraging effort at a spatial and temporal scale. This was achieved by equipping a total of 668 chick-rearing Cape gannets with a GPS device. With an increase in fisheries catch there was an increase in the birds’ foraging effort. To reduce competition between the gannets and fisheries, the gannets’ core foraging areas seldomly overlapped with the fisheries catch locations, at the cost of the gannets’ increased foraging effort. One method to halt the Cape gannet population decline would be to conserve the fish resources close to the breeding colonies. This would reduce the birds’ foraging whereby increasing their fitness. Safeguarding small pelagic fish to ensure the perseverance of the remaining Benguela seabird populations, would lead to preserving the Benguela marine ecosystem as a whole. My study provided new insight into effects of fish stock management on Cape gannet foraging behaviour in South Africa, and the need for adequate management to ensure population persistence. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-12
Dietary assessment of Cape Gannets (Morus capensis) and African Penguins (Spheniscus demersus) in Algoa Bay using molecular scatology
- Bowmaker - Falconer, Kezia, Von Der Heyden, Sophie
- Authors: Bowmaker - Falconer, Kezia , Von Der Heyden, Sophie
- Date: 2023-12
- Subjects: Gannets , Gannets -- Food , Sea birds -- South Africa -- Bird Island, Algoa Bay.
- Language: English
- Type: Master's theses
- Identifier: http://hdl.handle.net/10948/62420 , vital:72675
- Description: Seabirds are important marine sentinels, providing valuable information about ecosystem health and condition. Dietary studies of seabirds can inform on ecosystem functioning through identifying the condition and changes occurring in their surrounding environment. Dietary studies are also crucial as they can identify threats that seabirds face. Until recently, the diets of southern African endemic and Endangered Cape Gannets Morus capensis and African Penguins Spheniscus demersus were solely investigated through stomach content analyses, which allows for the identification and quantification of prey remains. To overcome some of the limitations associated with stomach content analysis, stable isotope and fatty acid analyses were proposed. However, these methods still require bird handling and thus impose some stress on the birds. DNA metabarcoding of faecal matter shows promise as a completely noninvasive method for seabird dietary studies. This thesis first examined whether DNA metabarcoding could be used to determine the diet of Cape Gannet and African Penguin breeding in Algoa Bay, South Africa. Then, this method was used to investigate the influence of intrinsic (both seabird species) and extrinsic (African Penguins) factors on the diet of the two seabird species. For the first data chapter, stomach content samples and faecal matter were collected concurrently from breeding Cape Gannets and African Penguins on Bird Island. DNA was successfully extracted from most faecal matter samples and the primers (18S_SSU, 16S_Fish) used for group, taxa and fish prey identification allowed amplification of prey DNA for both study species. A similar piscivorous diet was determined by both dietary methods for Cape Gannets with Sardine Sardinops sagax and Atlantic Saury Scomberesox saurus dominating the diet. Sardine also dominated the African Penguin diet in both dietary methods. In addition, DNA metabarcoding in African Penguins revealed a more diverse diet compared to the one determined by stomach content analysis. This was likely due to the limitations on the allowed number of stomach content samples to be collected for that Endangered species. Non-invasive DNA metabarcoding of faecal matter was then used to investigate whether the diet varied with breeding stages (incubation, chick-rearing) and age classes (chick-rearing adults, chicks) in both seabird species, but also breeding colonies (Algoa Bay: Bird Island, St Croix Island) in African Penguins. DNA metabarcoding revealed that breeding stages influenced the diet of Cape Gannets and African Penguins on Bird Island where prey species diversity was greater for incubating adults. On the contrary, the diet of incubating and chick-rearing penguins on St Croix Island was similar. When comparing the diet of African Penguins between Bird Island and St Croix Island, there was an increased overlap in diet composition between incubating and chick-rearing adults on St Croix Island when compared to Bird Island. Importantly, DNA metabarcoding indicated an increase in fishery interactions in Algoa Bay, particularly for Cape Gannets and the hake Merluccius spp. fishery, where the contribution of hake to chick-rearing adults and chick diet was considerably greater than incubating adult diet. In this study, I showed that DNA metabarcoding of faecal matter provides an opportunity for non-invasive dietary studies in two southern African endemic and Endangered seabird species. Incorporating non-invasive methods as a complement to other dietary methods for monitoring seabird trophic ecology is crucial when considering the worsening status of several seabird species. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Bowmaker - Falconer, Kezia , Von Der Heyden, Sophie
- Date: 2023-12
- Subjects: Gannets , Gannets -- Food , Sea birds -- South Africa -- Bird Island, Algoa Bay.
- Language: English
- Type: Master's theses
- Identifier: http://hdl.handle.net/10948/62420 , vital:72675
- Description: Seabirds are important marine sentinels, providing valuable information about ecosystem health and condition. Dietary studies of seabirds can inform on ecosystem functioning through identifying the condition and changes occurring in their surrounding environment. Dietary studies are also crucial as they can identify threats that seabirds face. Until recently, the diets of southern African endemic and Endangered Cape Gannets Morus capensis and African Penguins Spheniscus demersus were solely investigated through stomach content analyses, which allows for the identification and quantification of prey remains. To overcome some of the limitations associated with stomach content analysis, stable isotope and fatty acid analyses were proposed. However, these methods still require bird handling and thus impose some stress on the birds. DNA metabarcoding of faecal matter shows promise as a completely noninvasive method for seabird dietary studies. This thesis first examined whether DNA metabarcoding could be used to determine the diet of Cape Gannet and African Penguin breeding in Algoa Bay, South Africa. Then, this method was used to investigate the influence of intrinsic (both seabird species) and extrinsic (African Penguins) factors on the diet of the two seabird species. For the first data chapter, stomach content samples and faecal matter were collected concurrently from breeding Cape Gannets and African Penguins on Bird Island. DNA was successfully extracted from most faecal matter samples and the primers (18S_SSU, 16S_Fish) used for group, taxa and fish prey identification allowed amplification of prey DNA for both study species. A similar piscivorous diet was determined by both dietary methods for Cape Gannets with Sardine Sardinops sagax and Atlantic Saury Scomberesox saurus dominating the diet. Sardine also dominated the African Penguin diet in both dietary methods. In addition, DNA metabarcoding in African Penguins revealed a more diverse diet compared to the one determined by stomach content analysis. This was likely due to the limitations on the allowed number of stomach content samples to be collected for that Endangered species. Non-invasive DNA metabarcoding of faecal matter was then used to investigate whether the diet varied with breeding stages (incubation, chick-rearing) and age classes (chick-rearing adults, chicks) in both seabird species, but also breeding colonies (Algoa Bay: Bird Island, St Croix Island) in African Penguins. DNA metabarcoding revealed that breeding stages influenced the diet of Cape Gannets and African Penguins on Bird Island where prey species diversity was greater for incubating adults. On the contrary, the diet of incubating and chick-rearing penguins on St Croix Island was similar. When comparing the diet of African Penguins between Bird Island and St Croix Island, there was an increased overlap in diet composition between incubating and chick-rearing adults on St Croix Island when compared to Bird Island. Importantly, DNA metabarcoding indicated an increase in fishery interactions in Algoa Bay, particularly for Cape Gannets and the hake Merluccius spp. fishery, where the contribution of hake to chick-rearing adults and chick diet was considerably greater than incubating adult diet. In this study, I showed that DNA metabarcoding of faecal matter provides an opportunity for non-invasive dietary studies in two southern African endemic and Endangered seabird species. Incorporating non-invasive methods as a complement to other dietary methods for monitoring seabird trophic ecology is crucial when considering the worsening status of several seabird species. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2023
- Full Text:
- Date Issued: 2023-12
Effects of fire on architecture and composition of canopy shrubs in subtropical dune thicket of the southeastern Cape Floristic Region
- Strydom, Tiaan, Grobler, Adriaan
- Authors: Strydom, Tiaan , Grobler, Adriaan
- Date: 2023-12
- Subjects: Plant ecology -- Research , Plant communities -- South Africa , Browsing (Animal behavior)
- Language: English
- Type: Doctorial theses , text
- Identifier: http://hdl.handle.net/10948/62632 , vital:72899
- Description: Disturbance, such as fire and megaherbivory, is a pervasive phenomenon globally and has different effects on the flora and vegetation of different ecosystems. The Cape Floristic Region (CFR) of South Africa includes the distinctive Subtropical Thicket biome, which occurs as interrupted blocks that are not exposed to fire, but also as mosaics with the fire-prone vegetation of the Fynbos biome, especially on coastal dunes where thicket species are exposed to fire. Subtropical Dune Thicket (hereafter thicket) thus co-occurs with Fynbos, capable of supporting intense fires that can lead to thicket shrub defoliation and mortality. Thicket also experiences disturbance from meso- and megaherbivores that causes defoliation and mortality of shrubs. The aim of this study was to investigate the resilience of thicket shrub species to varying disturbance levels from fire and browsing to understand what drives thicket persistence in a fire-prone landscape. Firstly, I established the architectural traits of thicket species in long unburnt and post-fire contexts and investigated the relationships between these traits and the survival, resprouting ability and persistence of thicket shrubs. In mature thicket, I identified three distinct architectural guilds, namely hedge formers, lateral spreaders, and vertical growers. In post-fire thicket I identified three resprouting architectures, namely weak resprouters, moderate resprouters and strong resprouters. There was no strong relationship between the unburnt and post-fire resprouting architectures. Secondly, I compared thicket species and architectural composition in patches of landscape that experience different levels of fire exposure to assess the potential effect of fire frequency on determining thicket structure. I recognised three thicket vegetation units, each with a distinct structure and each corresponding to the level of fire exposure in the landscape. The first unit, forest-thicket, is exposed to low levels of fire frequency (> 100 years) and harbours forest species, many of which were vertical growers. The second unit, thicket, is exposed to moderate levels of fire frequency (50-100 years) and is dominated by lateral spreaders. The last unit, fynbos-thicket, is exposed to high levels of fire frequency (10-50 years) and here hedge-forming shrubs dominate the canopy cover. Forest-thicket and fynbos-thicket had a diverse set of shrub species with many being restricted to their respective vegetation type, whereas thicket had a lower diversity with no unique shrub species. , Thesis (DPhil) -- Faculty of Science, School of Natural Resource Management, 2023
- Full Text:
- Date Issued: 2023-12
- Authors: Strydom, Tiaan , Grobler, Adriaan
- Date: 2023-12
- Subjects: Plant ecology -- Research , Plant communities -- South Africa , Browsing (Animal behavior)
- Language: English
- Type: Doctorial theses , text
- Identifier: http://hdl.handle.net/10948/62632 , vital:72899
- Description: Disturbance, such as fire and megaherbivory, is a pervasive phenomenon globally and has different effects on the flora and vegetation of different ecosystems. The Cape Floristic Region (CFR) of South Africa includes the distinctive Subtropical Thicket biome, which occurs as interrupted blocks that are not exposed to fire, but also as mosaics with the fire-prone vegetation of the Fynbos biome, especially on coastal dunes where thicket species are exposed to fire. Subtropical Dune Thicket (hereafter thicket) thus co-occurs with Fynbos, capable of supporting intense fires that can lead to thicket shrub defoliation and mortality. Thicket also experiences disturbance from meso- and megaherbivores that causes defoliation and mortality of shrubs. The aim of this study was to investigate the resilience of thicket shrub species to varying disturbance levels from fire and browsing to understand what drives thicket persistence in a fire-prone landscape. Firstly, I established the architectural traits of thicket species in long unburnt and post-fire contexts and investigated the relationships between these traits and the survival, resprouting ability and persistence of thicket shrubs. In mature thicket, I identified three distinct architectural guilds, namely hedge formers, lateral spreaders, and vertical growers. In post-fire thicket I identified three resprouting architectures, namely weak resprouters, moderate resprouters and strong resprouters. There was no strong relationship between the unburnt and post-fire resprouting architectures. Secondly, I compared thicket species and architectural composition in patches of landscape that experience different levels of fire exposure to assess the potential effect of fire frequency on determining thicket structure. I recognised three thicket vegetation units, each with a distinct structure and each corresponding to the level of fire exposure in the landscape. The first unit, forest-thicket, is exposed to low levels of fire frequency (> 100 years) and harbours forest species, many of which were vertical growers. The second unit, thicket, is exposed to moderate levels of fire frequency (50-100 years) and is dominated by lateral spreaders. The last unit, fynbos-thicket, is exposed to high levels of fire frequency (10-50 years) and here hedge-forming shrubs dominate the canopy cover. Forest-thicket and fynbos-thicket had a diverse set of shrub species with many being restricted to their respective vegetation type, whereas thicket had a lower diversity with no unique shrub species. , Thesis (DPhil) -- Faculty of Science, School of Natural Resource Management, 2023
- Full Text:
- Date Issued: 2023-12