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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

The influence of location on the structure and functioning of private land conservation networks in the Western Cape province of South Africa

Baum, Julia January 2016 (has links)
Protected areas are an important tool for biodiversity conservation. Statutory protected areas are, however, perceived to currently be insufficient in extent and functioning for achieving conservation goals. Conservation action on privately owned land plays an increasingly vital role in expanding the global conservation estate. Private Land Conservation Areas (PLCAs) exist with internal properties and external contexts and do not occur isolated in space and time. They can thus best be described as linked social-ecological systems. Little comprehensive work has yet been done concerning the structure and functioning of PLCAs. However, an understanding of their emergence, long-term persistence and contribution to conservation is highly relevant. How can PLCAs maintain their identity against disturbances in order to be resilient into the future? Spatial patterns and relationships determine the answer to this question. Geographical location influences the private conservation estate through different drivers, namely biophysical conditions, network connections and membership, as well as socio-economic conditions. I thus used a comparative, spatially explicit and holistic approach to better understand spatial resilience of PLCAs in the Western Cape Province of South Africa as case study region. The approach was based on assessing representative measures for four elements of system identity (being components, relationships, sources of continuity, and sources of innovation). I expected that geographical location and spatial variation in social-ecological factors strongly influence PLCA types, socio-economic interaction networks among protected areas and other stakeholders, contribution to conservation by PLCAs and their ecotourism performance. Information and data for this research were obtained from personal interviews conducted with owners and managers of 70 PLCAs across the province. Additional data were derived via conservation authorities and online tools. My findings show that the identity and resilience of PLCAs are strongly dominated by the influence of spatial location and heterogeneity in factors such as ecological features or socioeconomic context. I was able to verify existing PLCA types, namely game and habitat reserves, which strongly depended on the biophysical context. Visitation rates were influenced by location which determined the adopted corporate model of PLCAs. Clear neighbourhood effects emerged in socioeconomic interaction networks, which further highlighted great potential to enhance collaboration across scales. PLCAs provided a substantial contribution to conservation targets in terms of importance (covering critical biodiversity areas) and urgency (protecting ecosystems of threatened status). My findings will be valuable to highlight opportunities for more effective conservation in the study region, and to advance insights into the spatial resilience of social-ecological systems.
22

Assessing Social-Ecological Justice in Projects, Plans and Processes : A Workbook for Sustainable development

Bertilson, Anton January 2016 (has links)
This thesis aims to develop a workbook to assess social-ecological justice (SEJ) in projects, plans and processes. Social-ecological justice bridges many sustainability discourses in order to create a more inclusive and wider sustainability concept than previous ones (Gunnarsson Östling & Svenfelt, (Submitted Book Chapter)).  In order to fill the gap between SEJ theory and practically assessing SEJ in projects, plans and processes there is a need for a tool that can help and guide practitioners in their work. This thesis aims to fill the existing gap by developing the SEJ workbook. A lot of the developed SEJ methodology is based on an already existing workbook developed by the Resilience Alliance (2010) called: Assessing resilience in social-ecological systems: Workbook for practitioners. This workbook and SEJ have the same definition of what a social-ecological system is, and share a lot of similar theoretical aspects. The methodology of this thesis is a combination of a theoretical study of the SEJ concept, an analytic comparative study between a Resilience Assessment and the SEJ concept, and semi-structured interviews with practitioners that in different ways works with sustainable development today. The result is a five steps workbook that consists of the parts: 1) Identifying issues, defining the area and actor analysis, 2) History of the issues, 3) Dynamics of the issues and cross-scale interactions, 4) Governance and 5) Acting on the assessment. Each step has questions that aim to help the analyst complete the SEJ assessment. This entire process creates an inclusive and broad understanding of SEJ issues in projects, plans and processes. The complete SEJ assessment can help decision makers and actors in the area make well informed decisions for future sustainable development. It can also serve as a first step in an EIA (environmental impact assessment) with connections to social, ecological and socioeconomic aspects.
23

Resilience among orphans and vulnerable children in KwaZulu- Natal schools: towards a psychosocial model of intervention

Makhonza, Lindokuhle Octavia January 2018 (has links)
A thesis submitted to the Faculty of Education in fulfilment of the requirements for the Degree of Doctor of Education in the Department of Educational Psychology and Special Education at the University of Zululand, 2018 / This study investigated the resilience among Orphans and Vulnerable Children (OVC) in KwaZulu-Natal schools. It identified OVC challenges and developed a psychosocial model of intervention. The Social Ecological Model was adopted as a framework for the study. The study adopted the mixed method research design. The population for the study was the OVC, caregivers and teachers from Kwazulu-Natal schools, specifically Amajuba and Zululand Districts. Random selection was done for OVC from mainstream schools. Purposive sampling method was used to select OVC from special schools, schools near the orphanage, home of safety and a Full Service school. The sample which participated during quantitative data collection consisted of 303 OVC from 12 to 20 years old who were selected from 7 school in Amajuba and Zululand Districts.The sample which participated in qualitative data collection consisted of 4 focus groups and those were 6 caregivers, 6 teachers and 12 OVC. OVC were selected from 303 OVC who filled the questionnaires and CYRM-28. This made a total of 24 participants for focus groups. The total of participants for the whole study was 315. Three instruments were used to collect data for this study, namely; the Child and Youth Resilience Scale-28 (CYRM-28), the self-constructed psychosocial questionnaire and the interview schedule. The CYRM-28 was used to measure the extent of OVC resilience with the self-constructed questionnaire. Both descriptive and inferential statistics were used to analyse data. Frequencies were created for descriptive data and the Chi-Square statistical technique was used to test the null hypothesis. Then the thematic content analysis was used to identify themes from the focus group interviews. The results of descriptive statistics indicated that 79% of all participants reported high availability of resources that enabled resilience. Fewer resources were reported for children who had experienced abuse, followed by those with disabilities and more resources were reported for orphans. The main challenges of OVC identified were lack of support from teachers and neighbours/ communities. Other challenges included maltreatment by caregiver, OVC behavioural problems, unavailability of documents for social grant applications. Child Headed Household was identified as lacking all resources. The findings of inferential statistics indicated that there is a significant relationship between the age, gender and custody of OVC and their availability of resources. OVC and caregivers encountered various problems which were risk factors for the resilience of OVC. Availability of resources to a majority of OVC who participated in the study was a protective factor. Participants recommended that more resources which promote resilience of OVC be made available to communities, for examples, old age homes, and entrepreneurship skills, continuous counselling services for caregivers and OVC and recreational facilities for communities. Lastly, the psychosocial model of intervention was developed based on the literature and findings of the study. / Natonal Research Foundation National Institute for Humanities and Social Sciences (NIHSS)
24

Ecological Analysis of Physical Activity and Health-related Quality of Life in Female College Students.

Dunn, Jacqueline 12 1900 (has links)
Health-related quality of life (HRQOL) is a comprehensive construct including physical and psychosocial health functioning. Despite significant health benefits of regular physical activity (PA), over 40% of female college students do not meet recommended PA guidelines to improve their health. This study investigated the influences of individual, social, and physical environmental factors on students’ PA and HRQOL. Participants were 235 female university students who completed validated surveys assessing their perceptions of PA, HRQOL, and social ecological factors. Three hierarchical regressions revealed individual and physical environmental factors as predictors of PA and HRQOL. These findings indicated health professionals need to consider students’ individual factors and physical environmental factors to promote female students’ PA and HRQOL.
25

Building Resilience: A Complex Systems Approach to Sustainable Design

Major, Sarah J. 21 September 2012 (has links)
No description available.
26

Human and environmental influences on the distribution and abundance of arapaima in river floodplains of the Lower Amazon

Richard, Jordan Conner 17 November 2016 (has links)
Understanding the factors influencing the abundance and distribution of tropical floodplain fishes is an important component of fisheries management plans to support future sustainable resource use. This thesis uses a multi-scale approach to understand the habitat factors controlling the distribution and abundance of arapaima (Arapaima spp.) in river floodplains of the lower Amazon River, near the municipality of Santarém, Para State, Brazil. In chapter 1, a study of eight environmental variables in 13 dry season floodplain lakes demonstrates that lake depth, relative depth, conductivity, and transparency were significantly related to the probability of arapaima presence at individual locations within lakes. Further, the study revealed that smaller arapaima were more likely to be found near macrophyte coverage than in open water locations. In chapter 2, a landscape scale approach was used to examine the interactions between management systems, landscape habitat coverage, and spatial arrangement on arapaima population sizes in 73 floodplain lakes. Results showed that all three influences were important in explaining variability in arapaima abundances. Management and habitat variables contributed equally in controlling arapaima abundances. Both had strong patterns of spatial arrangement and overlapped significantly, suggesting that analysis of either management systems or landscape habitats without the other would lead to overestimations of the strength of their influence. Findings from both chapters support the notion that future sustainable use of arapaima populations requires a dualistic approach combining habitat conservation with fisheries management techniques enacted at a local scale. / Master of Science
27

Human Dimensions of Habitat Conservation on Western Agricultural Lands: Engaging Producers in the Conservation Conversation

Sketch, Mary Elizabeth 17 January 2019 (has links)
Achieving long-term conservation gains through conservation incentive programs on agricultural lands requires a deep understanding of landowner needs and interests. However, social science research related to private lands conservation programs authorized by the United State farm bill lags behind biological research, limiting our knowledge about how to best design these programs to ensure they are effective. Given this need to better understand the human dimensions of habitat conservation on agricultural lands, we used two research projects to investigate landowner considerations related to land management decisions as well as how to effectively engage landowners in the conservation process. First, using two landowner-led workshops, we looked at what factors ranchers in the Intermountain West consider in deciding to continue or discontinue flood irrigation, an irrigation practice that sustains historically flooded wet meadows across the region. We also evaluated these landowner-led workshops as a form of participatory research. Our second project included three focus groups of landowners currently enrolled in the Conservation Reserve Program, the largest private lands conservation program in the United States, and a survey of landowners with fields currently enrolled or no longer enrolled with expiration dates from 2011 to 2017. Our results highlight the role of agricultural landowners in habitat conservation and the complex social-ecological considerations that they face in making management decisions. Many landowners are interested in conservation programs that meet the context of their specific operation. Our findings suggest the need to better incorporate landowner needs into conservation program design and implementation that promote both operation and habitat sustainability. / MS / Agricultural lands across the American West play a critical role in conserving both agricultural operations and wildlife habitat. Conservation programs that provide incentives to landowners for various conservation efforts are available to aid in the protection of these lands and communities. Gaining a deeper understanding of the considerations of agricultural landowners for their land management decisions can help inform conservation programs and policy to more effectively meet the needs of landowners. We used two research projects to investigate landowner considerations related to land management decisions as well as how to effectively engage landowners in the conservation process. First, we looked at what factors ranchers in the Intermountain West consider in deciding to continue or discontinue flood irrigation, an irrigation practice that sustains historically flooded wet meadows across the region. We also evaluated these landowner-led workshops as a form of participatory research. Our second project included three focus groups of landowners currently enrolled in the Conservation Reserve Program, the largest private lands conservation program in the United States, and a survey of landowners with fields currently enrolled or no longer enrolled with expiration dates from 2011 to 2017. Our results highlight the role of agricultural landowners in habitat conservation and the complex environmental and social considerations that they face in making management decisions. Many landowners are interested in conservation programs that meet the needs of their specific operation. Our findings suggest the need to better incorporate landowner needs into conservation program design and implementation that promote both agricultural and environmental conservation.
28

Social and environmental change as determinants of ecosystem health: A case study of social ecological systems in the Paterson Valley NSW Australia

Archer, Alan Cameron January 2007 (has links)
Research Doctorate - Doctor of Philosopy (PhD) / An environmental history approach is used in this thesis as a foundation for the analysis of the social and environmental changes that have occurred from the ancient past to the present within the Paterson Valley in New South Wales, Australia. The study examines the biophysical basis of the valley’s ecological processes and then describes the influence of the activities of Aboriginal peoples and subsequent European colonisation on the landscape. The study makes use of the various methodologies within social and ecological systems to assist with the analysis. It demonstrates the value of concepts such as complex adaptive systems, the adaptive cycle, panarchy and ecosystem health as ways of conceptualising complex transdisciplinary issues to reach conclusions based on temporal and spatial evidence. The complex relationships that the Aboriginal peoples had with the environment are compared with the various and rapid phases of colonial influences and processes. The social dimension of the changes over time is examined particularly with respect to the Indigenous and European institutions and infrastructure that influence the landscape. A significant issue identified in the study was the changing influence of Western institutions on the ecosystem health of the Valley; from local to global. The implications of this on ecosystem health are discussed. The Valley’s landscapes are divided into alluvial and non-alluvial, with the latter receiving the most attention in the study primarily due to its more extant nature whereas the alluvial rainforest has been virtually eliminated through extensive land clearing. The analysis of the non-alluvial landscape shows how important the Indigenous land management practices were in the maintenance of a complex mosaic of vegetation types specifically influenced by fire. The impact of the removal of the Indigenous influences on the landscape and the imposition of European practices and processes have seen a major reduction in the Valley’s ecological complexity. The study identified processes and factors external to the Valley which are increasingly influencing it. Not all of these are detrimental but they result in the Valley’s ecosystem health being more dependent on global events and processes. The study demonstrates the value of the ecosystem health framework for conceptualising the Valley’s ecosystems and the adaptive cycle for analysing and understanding their changes over time. These approaches provide an opportunity to identify pathways for future management of the Valley’s resources.
29

Social and environmental change as determinants of ecosystem health: A case study of social ecological systems in the Paterson Valley NSW Australia

Archer, Alan Cameron January 2007 (has links)
Research Doctorate - Doctor of Philosopy (PhD) / An environmental history approach is used in this thesis as a foundation for the analysis of the social and environmental changes that have occurred from the ancient past to the present within the Paterson Valley in New South Wales, Australia. The study examines the biophysical basis of the valley’s ecological processes and then describes the influence of the activities of Aboriginal peoples and subsequent European colonisation on the landscape. The study makes use of the various methodologies within social and ecological systems to assist with the analysis. It demonstrates the value of concepts such as complex adaptive systems, the adaptive cycle, panarchy and ecosystem health as ways of conceptualising complex transdisciplinary issues to reach conclusions based on temporal and spatial evidence. The complex relationships that the Aboriginal peoples had with the environment are compared with the various and rapid phases of colonial influences and processes. The social dimension of the changes over time is examined particularly with respect to the Indigenous and European institutions and infrastructure that influence the landscape. A significant issue identified in the study was the changing influence of Western institutions on the ecosystem health of the Valley; from local to global. The implications of this on ecosystem health are discussed. The Valley’s landscapes are divided into alluvial and non-alluvial, with the latter receiving the most attention in the study primarily due to its more extant nature whereas the alluvial rainforest has been virtually eliminated through extensive land clearing. The analysis of the non-alluvial landscape shows how important the Indigenous land management practices were in the maintenance of a complex mosaic of vegetation types specifically influenced by fire. The impact of the removal of the Indigenous influences on the landscape and the imposition of European practices and processes have seen a major reduction in the Valley’s ecological complexity. The study identified processes and factors external to the Valley which are increasingly influencing it. Not all of these are detrimental but they result in the Valley’s ecosystem health being more dependent on global events and processes. The study demonstrates the value of the ecosystem health framework for conceptualising the Valley’s ecosystems and the adaptive cycle for analysing and understanding their changes over time. These approaches provide an opportunity to identify pathways for future management of the Valley’s resources.
30

Towards indigenous marine management: a case study of yelloweye rockfish on the central coast of British Columbia

Eckert, Lauren 04 May 2017 (has links)
Coastal Indigenous Peoples worldwide have relied on fish and other marine resources for millennia, and continue to do so despite recent degradation of ocean systems. Their traditional ecological knowledge, comprised of experiences, observations, beliefs, and lifeways, is relevant for modern marine management and conservation. This thesis explores the utility of traditional and local ecological knowledge for extending an understanding of changes over time for places or periods in which scientific data are unavailable. This thesis had three goals: 1) undertake research that is collaborative and inclusive, and that addresses priorities established by participating First Nations; 2) contribute to fisheries management and conservation recommendations by focusing on a species of cultural importance and exploring the applications of traditional and local ecological knowledge to species-level understandings; and 3) contribute a marine social-ecological case study that investigates the use of traditional and local ecological knowledge to understand change over time and provides appropriate context. Two main objectives allowed me to accomplish my goals: 1) demonstrate the application of traditional and local ecological knowledge to establish historical baselines that extend farther back in time than scientific surveys, and investigate reasons for changes, and 2) investigate the utility of a social-ecological trap framework in assessing impacts to a social-ecological system and identifying ways to escape such a trap. My case study occurred in collaboration with four First Nations (as many Indigenous Peoples of Canada are called) on the Central Coast of British Columbia, Canada. My methods included semi-structured interviews with knowledge holders to examine traditional and local ecological knowledge of a culturally and economically important species, Yelloweye rockfish (Sebastes ruberrimus). In this study, I interviewed First Nations fishers and Elders (n=43), asking about: observed changes to the body sizes (length) and abundance of this species over the last ~60 years, the factors driving these changes, stewardship principles or traditional management strategies, concerns for marine resources, and perceived opportunities for cultural revitalization. I then quantified the interview participants’ current and historical estimates of size and abundance, compared interview data to current biological survey data, and qualitatively analyzed responses regarding stewardship, culture, perceived threats, and cultural solutions. I utilized the framework of a social-ecological trap to analyze responses about stewardship, traditional stories or management, and threats to culture, selecting illustrative quotes to contextualize the lived experiences of participants. Overwhelmingly, respondents had observed a decrease in Yelloweye rockfish body sizes since the 1980s. Median historical length observed by participants was nearly twice the modern length. Participants reported substantial decrease in Yelloweye rockfish abundance since the 1980s, and most stated that this change was evident in the early 2000s. Sizes of modern Yelloweye rockfish estimated by participants resembled measurements from ecological data recorded concurrently at the study region. Thus, my study extends baseline historical data of Yelloweye rockfish reliably by about 50 years. Questions about traditional stories and culture revealed the presence of a social-ecological trap created and reinforced by the interplay between species decline and colonization (e.g. the residential schooling system). When asked about traditional management or stewardship practices, only one participant could remember specific traditional stories about Yelloweye rockfish, though all participants expressed adherence to the stewardship principles of taking only what is needed and respecting all life. Though participants expressed concern about the muting of traditional ecological knowledge, culture, and language, they also highlighted key ways towards revitalization and Indigenous resurgence. The ubiquitous presence of stewardship principles suggests there are ways beyond the social trap: participants described on-going cultural revitalization efforts, recovery of depleted species and ecosystems, and the reassertion of Indigenous management rights as ways to overcome problems inherent to the social-ecological trap. My research adds to a growing body of literature that supports the use of traditional and local ecological knowledge in marine management and conservation science. Adding to this literature, my work suggests the significant value of traditional and local ecological knowledge for filling gaps in historical scientific data or in data-poor regions, and highlights the importance of appropriately contextualizing Indigenous knowledge. To overcome the social-ecological trap of knowledge loss and to achieve informed marine management, reassertion of Indigenous management rights and application of traditional management strategies to modern fisheries management is vital. / Graduate / 0326 / 0768 / 0416 / eckertleckert@gmail.com

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