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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.
1

Exploring power in the theory and practice of resilience

Lyon, Christopher January 2017 (has links)
This thesis explores the question of how social power is accounted for in the theory and practice of resilience. Beginning with a critical assessment of the social ecological systems (SES) perspective that underpins much of the theory and study of resilience, this thesis develops a framework, based on Gaventa’s powercube, for understanding power that also incorporates a much less hierarchical understanding of the dimensions of space and time. This revised ‘powerplane’ framework is applied to two empirical case studies of practices of resilience. Applying the powerplane to the case of government-led Scottish community emergency resilience planning finds that while the practices of resilience result in greater levels of engagement and interaction between local and regional levels of government, a gap exists between local government and the public it represents. Applying the powerplane to the grassroots case of Transition Town Peterborough, Canada, shows that intimate knowledge of local social and political institutions can allow a grassroots organisation to introduce resilience ideas into social and political community life. Together the two case studies reveal three key insights from resilience practices aimed at local contexts, rooted in: (1) institutionalising community engagement practices; (2) differences between formal and informal understandings of resilience; and (3) the scope of the risks resilience is aimed at mitigating. Critically exploring these issues in turn helps to illuminate questions about the efficacy, as well as the social and political implications of the resilience practice in question. For theory, the research shows that reconsidering hierarchical notions of scale and time in SES resilience can provoke new thinking about the role of power in resilience practices. In doing so, insights from this research offer novel challenges and complementarities to they way existing critiques of resilience approaches to account for social power issues.
2

Implementation of the European network: Natura 2000 : Determined according to overarching EU directives or through compromising ecological aspects?

Westfahl Backlund, Martina January 2008 (has links)
<p>Global biodiversity is currently being lost at an unprecedented rate, posing a threat to vital ecosystems and hence the generation of ecosystem services that human society is entirely reliant upon. Within the European Community, the EU has set a target of halting biodiversity loss within the territory by 2010. This goal is intended to be operationalized by the implementation of the Habitats Directive and the Birds Directive. These directives constitute the framework for the establishment of a coherent ecological network, referred to as the Natura 2000 network.</p><p>This study examines and analyses the socio-ecological complexities surrounding the designation of Natura 2000 sites in Östhammar municipality, Sweden. The use of a case study-approach to focus on this area is applied in pursuit of identifying and explaining the inherent intricacies in the designation processes and linking them to the broader global context. Throughout Europe, biodiversity exists in a rich variety of grasslands, but only a few studies have been performed to establish appropriate conservation management strategiesrequired for each habitat. This study makes a significant contribution towards shedding light on the Natura 2000 designation process, a phenomenon which has previously been only modestly documented, especially in Sweden. Ecosystem management is discussed and utilized as the theoretical basis for managing ecosystems sustainably, and an important aspect of note is the recognition that the distinction between man and nature needs to be understood as artificial and arbitrary.</p><p>The study explains how social-ecological factors have had a prominent effect on the designation process of Natura 2000 sites. The main determining factor behind the designation process has been the time-constraints, which have affected the designation of SCIs as well as the interaction between the Uppsala CAD and local stakeholders. The lack of adequate participatory approaches used during this process has heightened the risk of compromising the aim of the network: to achieve Favourable Conservation Status (FCS) for natural habitat types as well as species.</p> / <p>Biodiversiteten världen över minskar i en tidigare aldrig skådad hastighet vilket resulterar i ett hot mot fundamentala ekosystem, samt dess produktion av de ekosystemtjänster som det mänskliga samhället är beroende av. På grund av detta har EU satt upp målet att stoppa förlusten av biodiversitet inom unionens gränser tills 2010. Detta mål skall uppnås genom implementeringen av Habitat- och Fågeldirektivet. Dessa direktiv utgör ramen för etableringen av ett sammanhängande ekologiskt nätverk, det så kallade Natura 2000 nätverket.</p><p>Denna studie utreder samt analyserar de socio-ekologiska aspekter som omger utpekandet av Natura 2000 områden i Östhammars kommun, i Uppsala län i Sverige. Genom appliceringen av en fallstudie av området söker denna uppsats att identifiera samt förklara inneboende svårigheter i processen av dessa utpekanden, samt att sätta dem i ett globalt sammanhang. Inom Europa existerar biodiversitet bland annat i olika typer av ängar, dock har endast ett fåtal studier tagit sig an uppgiften att formulera anpassade förvaltningsstrategier för dessa habitat. Denna studie bidrar till att sprida ljus över implementeringen av Natura 2000, ett fenomen som tidigare endast studerats i blygsam utsträckning, speciellt i Sverige. Den teoretiska grunden utgörs ekosystemansatsen, som appliceras för att utvärdera ett uthålligtförvaltande av ekosystem. Vidare understryks vikten av att betrakta ekosystem och mänsklig aktivitet som ett och samma system, och att synen på dem som skilda system bör anses artificiell och motsägelsefull.</p><p>Denna uppsats förklarar hur socio-ekologiska aspekter har påverkat utpekandeprocessen av Natura 2000-områden i Östhammars kommun. De avgörande faktorerna bakom detta är en identifierad tidsbrist, vilket har influerat utpekandet av områden av gemenskapsintresse samt interaktionen mellan Länsstyrelsen i Uppsala och lokala markägare. Bristen på samverkan och information har resulterat i en förhöjd risk av att målet med nätverket inte kommer att nås: att åstadkomma gynnsam bevarandestatus för arter och habitat.</p>
3

Implementation of the European network: Natura 2000 : Determined according to overarching EU directives or through compromising ecological aspects?

Westfahl Backlund, Martina January 2008 (has links)
Global biodiversity is currently being lost at an unprecedented rate, posing a threat to vital ecosystems and hence the generation of ecosystem services that human society is entirely reliant upon. Within the European Community, the EU has set a target of halting biodiversity loss within the territory by 2010. This goal is intended to be operationalized by the implementation of the Habitats Directive and the Birds Directive. These directives constitute the framework for the establishment of a coherent ecological network, referred to as the Natura 2000 network. This study examines and analyses the socio-ecological complexities surrounding the designation of Natura 2000 sites in Östhammar municipality, Sweden. The use of a case study-approach to focus on this area is applied in pursuit of identifying and explaining the inherent intricacies in the designation processes and linking them to the broader global context. Throughout Europe, biodiversity exists in a rich variety of grasslands, but only a few studies have been performed to establish appropriate conservation management strategiesrequired for each habitat. This study makes a significant contribution towards shedding light on the Natura 2000 designation process, a phenomenon which has previously been only modestly documented, especially in Sweden. Ecosystem management is discussed and utilized as the theoretical basis for managing ecosystems sustainably, and an important aspect of note is the recognition that the distinction between man and nature needs to be understood as artificial and arbitrary. The study explains how social-ecological factors have had a prominent effect on the designation process of Natura 2000 sites. The main determining factor behind the designation process has been the time-constraints, which have affected the designation of SCIs as well as the interaction between the Uppsala CAD and local stakeholders. The lack of adequate participatory approaches used during this process has heightened the risk of compromising the aim of the network: to achieve Favourable Conservation Status (FCS) for natural habitat types as well as species. / Biodiversiteten världen över minskar i en tidigare aldrig skådad hastighet vilket resulterar i ett hot mot fundamentala ekosystem, samt dess produktion av de ekosystemtjänster som det mänskliga samhället är beroende av. På grund av detta har EU satt upp målet att stoppa förlusten av biodiversitet inom unionens gränser tills 2010. Detta mål skall uppnås genom implementeringen av Habitat- och Fågeldirektivet. Dessa direktiv utgör ramen för etableringen av ett sammanhängande ekologiskt nätverk, det så kallade Natura 2000 nätverket. Denna studie utreder samt analyserar de socio-ekologiska aspekter som omger utpekandet av Natura 2000 områden i Östhammars kommun, i Uppsala län i Sverige. Genom appliceringen av en fallstudie av området söker denna uppsats att identifiera samt förklara inneboende svårigheter i processen av dessa utpekanden, samt att sätta dem i ett globalt sammanhang. Inom Europa existerar biodiversitet bland annat i olika typer av ängar, dock har endast ett fåtal studier tagit sig an uppgiften att formulera anpassade förvaltningsstrategier för dessa habitat. Denna studie bidrar till att sprida ljus över implementeringen av Natura 2000, ett fenomen som tidigare endast studerats i blygsam utsträckning, speciellt i Sverige. Den teoretiska grunden utgörs ekosystemansatsen, som appliceras för att utvärdera ett uthålligtförvaltande av ekosystem. Vidare understryks vikten av att betrakta ekosystem och mänsklig aktivitet som ett och samma system, och att synen på dem som skilda system bör anses artificiell och motsägelsefull. Denna uppsats förklarar hur socio-ekologiska aspekter har påverkat utpekandeprocessen av Natura 2000-områden i Östhammars kommun. De avgörande faktorerna bakom detta är en identifierad tidsbrist, vilket har influerat utpekandet av områden av gemenskapsintresse samt interaktionen mellan Länsstyrelsen i Uppsala och lokala markägare. Bristen på samverkan och information har resulterat i en förhöjd risk av att målet med nätverket inte kommer att nås: att åstadkomma gynnsam bevarandestatus för arter och habitat.
4

SEA CHANGE : Social-ecological co-evolution in Baltic Sea fisheries

Hentati-Sundberg, Jonas January 2015 (has links)
Sustainable management of natural resources requires an in-depth understanding of the interplay between social and ecological change. Linked social-ecological systems (SES) have been described as complex adaptive systems (CAS), which mean that they are irreducible, exhibit nonlinear dynamics, have interactions across scales and are uncertain and unpredictable. These propositions have however rarely been tested empirically, in part due to a lack of methodological approaches and suitable datasets. In this thesis, I address this methodological and empirical gap in a study of long-term change of Baltic Sea fisheries. In Paper I, we develop the concept of fishing style through integrating multivariate statistical analysis and in-depth interviews. We thereby identify an intermediate level of detail for analyzing social-ecological dynamics, embracing the case specific and context dependent approaches of the social sciences with the generalizable and quantifiable approaches from the natural sciences. In Paper II we ask: How has the Baltic Sea fishery been regulated over time, and can we identify a way to quantify regulations in order to be able to analyze their effects? We analyze all regulatory changes in Sweden since 1995 with a new methodology and conclude that there is a clear trend towards increased micro-management. In Paper III, we use the fishing styles developed in Paper I and examine how they have changed over time. We relate these changes to the dynamics of regulation (Paper II), as well as to the dynamics of fish stocks and prices. We conclude that regulation has been the main driving force for observed changes, but also that regulation has prompted significant specialization and decline in flexibility for fishers over time. These changes are unintended consequences and may represent a looming risk for the long-term sustainability of this social-ecological system. Paper IV zooms in on a particular fishery, the pelagic trawl fishery for sprat Sprattus sprattus and Atlantic herring Clupea harengus, mainly targeted for the production of fishmeal and fish oil. Suspicions of non-compliance in this fishery motivated us to apply a statistical approach where we used socioeconomic data to re-estimate the historical catches in this fishery (a novel approach to catch-reconstruction estimates). We found that catches had been significantly underreported over several years, with consequences for the quality of stock assessments and management. The study underlines the importance of understanding linked social, economic and ecological dynamics for sustainable outcomes. Finally, Paper V takes a longer historical look at the Baltic Sea fishery, using regionally disaggregated data from 1914-2009 (96 years), which were analyzed with a novel type of nonlinear statistical time-series methods (Empirical Dynamical Modeling). Our analysis explicitly recognized the potential nonlinear dynamics of SES and showed high predictability across regions of catches and prices of cod Gadus morhua and herring. The signal was generally nonlinear and predictability decreased strongly with time, suggesting that the dynamics of this SES are ever-changing. To our knowledge, this is the first long-term analysis of a SES using empirical data and methods developed from the CAS field of research. The main contributions of this thesis are the integrated analysis of social and ecological data, the development of novel methods for understanding SES dynamics, insights on the ever-changing nature of CAS and the quantitative analysis of management outcomes. Future work should focus on assessing the generality of these findings across a broad range of SES and evaluate alternative governance approaches given the complexity and uncertainty of SES suggested by this thesis. / <p>At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 5: Manuscript.</p>
5

Inviting landscapes : resilience through engaging citizens with urban nature

Astbury, Janice January 2015 (has links)
The role of citizens working with urban nature in making cities more resilient is under-explored and under-theorised. The social-ecological system (SES) is an appropriate concept to explore these interactions but challenges in applying it to cities have been identified. It has been suggested that there is a need to strengthen the 'social' in the SES. This thesis develops a conceptual framework that splits the social component of the SES into culture and agency and operationalises it through the concept of landscape. Previous scholarship has demonstrated that landscape is a powerful force in how people think about the world and that citizens are increasingly active in transforming urban landscapes. Using a critical realist framework, the SES is approached as an underlying mechanism that can only be apprehended through the landscapes that it produces. This directs attention to people’s experience of and responses to landscape. Three ‘layers’ of landscape are elucidated: the material landscape, the cultural landscape and responses to the landscape, drawing on the disciplines of landscape ecology, cultural geography and others concerned with environmental perception and people-environment interactions. The research surveyed citizen interaction with landscapes across North West England before focusing in on two key case studies in the city of Manchester. This analysis gave rise to development of a new concept, the Inviting Landscape, to describe landscapes that invite citizens to engage with them in ways that enhance the resilience of the underlying SES. The thesis identifies characteristics of Inviting Landscapes and links them to three stages of citizen engagement with landscapes. Potential practical applications of this characterisation of landscapes are discussed. Intellectually, the SES approach is enhanced through a deeper understanding of positive feedback mechanisms whereby landscapes influence citizen-nature interactions, which in turn impact on social-ecological resilience. The thesis concludes by making the case that attending more carefully to the role of culture and agency can strengthen the applicability of the SES approach to cities.
6

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.
7

Building Resilience: A Complex Systems Approach to Sustainable Design

Major, Sarah J. 21 September 2012 (has links)
No description available.
8

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.
9

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 / Understanding where fishes choose to live within aquatic habitats, and why they do so, is important for their long-term protection habitat destruction and overfishing. This thesis looks at fish habitats at both small and large scales to understand the variables affecting populations of the megafish arapaima (<i>Arapaima spp.</i>) in lakes of the lower Amazon River, near the municipality of Santarém, Pará State, Brazil. In chapter 1, a study of eight environmental variables in 13 lakes shows that for each lake, deeper, muddier (less clear), and more electricallyconductive waters were more likely placed to find arapaima. Further, the study revealed that young arapaima were more likely to be found near aquatic plants than in open water areas near the middle of the lake. In chapter 2, a larger-scale approach was used to examine the interactions between humans, habitats, and spatial groupings for arapaima population sizes in 73 lakes. Results showed that all three factors were important in explaining how many arapaima were found in each lake. Human and habitat variables were equally important variables affecting arapaima. Both were strongly related to spatial groupings and overlapped significantly, suggesting that analysis of either human systems or habitats without the other would lead researchers to overestimate how important they are for arapaima. Findings from both chapters support the notion that future sustainable use of arapaima populations requires an approach combining habitat conservation with fisheries management techniques enacted at a local scale.
10

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.

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