Physical inactivity is one of the major public health problems of the 21st Century. In England it is reported that two thirds of adults ( > 16 yr) and one third of children ( < 16 yr) do not do sufficient physical activity to gain the health benefits that leading a physically active lifestyle has to offer. The benefits of physical activity and dangers of a sedentary lifestyle to health outcomes are well documented and numerous studies have investigated physical activity participation. Indeed, many interventions have been trialled to increase engagement in physical activity; however results are weak and generally do not correlate to sustained physical activity participation. Furthermore, much debate exists on how best to encourage both children and adults alike to engage in sufficient physical activity to maintain a healthy lifestyle. The purpose of this research was to address this important research gap and to assess the physical activity levels and other factors for promoting engagement in physical activity of school aged children in Devon aged 7-15 years in order to assess the feasibility of using social marketing within the school setting to increase sustained physical activity participation. A mixed methods approach was adopted to gather data and consisted of both quantitative and qualitative methods, in two phases. The initial phase was quantitative in nature and utilised a self-report survey based on the theory of planned behaviour (TPB) (Azjen, 1991) and social cognitive theory (SCT) (Bandura, 1977) to measure the participants’ physical activity levels; it also measured their beliefs and attitudes, subjective norms, perceived behavioural control and self-efficacy pertaining to physical activity participation. The second phase utilised qualitative methods adopting the socio-ecological model (McLeroy et al., 1988) to identify opportunities to promote participation in physical activity in recognising the multiple factors (individual, social environment, physical environment and policy) that influence an individual’s behaviour. This phase consisted of a series of interviews with the students, teachers and head-teachers to enable the researcher to gain in depth information into physical activity patterns and beliefs. During phase two, ethnographic research was also conducted across a number of schools in Devon to complement and enhance the data collected in the survey. The results revealed that of the 1124 participants (‘students’) surveyed, 48% were not sufficiently active to meet the government guidelines. Males were 30% more active than females. Physical activity decreased with age (e.g. 15 yr olds on average taking part in 3 hours less activity than 7 yr olds). Lifestyle/recreational activities were the most regularly participated activities (e.g. walking – 52%, running – 31%, football – 29%, outdoor play – 28%). Moreover, attitudes, subjective norms and perceptions of behavioural control affected physical activity participation both in and out of the school setting. Self-efficacy also played a role in physical activity participation. The results of the thesis show that interview and ethnographic data produced a rich source of evidence. Physical activity provision within schools played a major role in students’ physical activity. Overwhelmingly the qualitative data revealed that students want greater choice in the physical activities they participate in and suggest that the focus of PE lessons should be on having fun and enjoyment rather than skills and rules. Transition from primary to secondary school affected physical activity participation and therefore experiences in schools, may affect children’s general views on physical activity which it is suggested may impact on physical activity participation beyond the school gates and also in adulthood. This thesis provides substantial evidence to support the link between the school environment and participation in physical activity in children and adolescents. More specifically it highlights a need to incorporate a ‘whole school approach’ to physical activity participation. This research has demonstrated that there is an urgent need to combine theory based physical activity research in schools with that of social marketing. Physical activity researchers and social marketers should combine their knowledge to bring together social marketing campaigns within schools to enhance the health and wellbeing of the whole school environment for both staff and students. An innovative school based social marketing campaign should encourage physical activity both within and outside the school environment and lead to sustained levels of physical activity participation across the life stages.

The research presented here attempts to bridge science and policy through the quantification of climate change impacts and the analysis of a science-fed participatory process to face a sustainability challenge in the San Pedro Basin (Arizona). Paper 1 presents an assessment of a collaborative development process of a decision support system model between academia and a multi-stakeholder consortium created to solve water sustainability problems in a local watershed. This study analyzes how science-fed multi-stakeholder participatory processes lead to sustainability learning promoting resilience and adaptation. Paper 2 presents an approach to link an ensemble of global climate model outputs with a hydrological model to quantify climate change impacts in the hydrology of a basin, providing a range of uncertainty in the results. Precipitation projections for the current century from different climate models and IPCC scenarios are used to obtain recharge estimates as inputs to a groundwater model. Quantifying changes in the basin's water budget due to changes in recharge, evapotranspiration (ET) rates are assumed to depend only on groundwater levels. Picking on such assumption, Paper 3 explores the effects of a changing climate on ET. Using experimental eddy covariance data from three riparian sites, it analyzes seasonal controls on ET. An approach to quantify evapotranspiration rates and growing season length under warmer climates is proposed. Results indicate that although atmospheric demand will be greater, increasing pan and reference crop evaporation, ET rates at the studied field sites will remain unchanged due to stomatal regulation. However, the length of the growing season will increase, mainly with an earlier leaf-out and at a lesser level by a delayed growing season end. These findings - implying decreased aquifer recharge, increased riparian water use and a lesser water balance - are very relevant for water management in semi-arid regions. Paper 4, in which I am second author, explores the theory relating changes in area-average and pan evaporation. Using the same experimental data as Paper 3, it corroborates a previous theoretical relationship and discusses the validity of Bouchet's hypothesis.

Soil degradation and low crop productivity negatively affect the food security of smallholder farmers in West Africa. Various agricultural techniques have been developed as components of food security interventions, but their effectiveness in addressing food insecurity in part depends upon farmers’ willingness to adopt these techniques. Likewise, adoption depends upon the effectiveness of these techniques in fulfilling farmers’ objectives. The institutional and biophysical environments mediate not only the effectiveness of the techniques, but also how farmers value a technique. This study examined the evidence for fertilizer microdosing as a form of agricultural intensification and the socio-economic conditions that influence its adoption among smallholder farmers. A census was conducted in one village in northwest Benin that had recently seen the introduction of fertilizer microdosing. Key household-level determinants of adoption identified in the literature—household resources, household demographics, and access to inputs— were included in the household surveys. Using partial budgeting analysis and yield data from demonstration plots, the relative profitability of fertilizer microdosing was calculated as a necessary condition of adoption. Drawing from farmers’ stories, the potential value of microdosing was contextualized within the larger social and institutional context. Based upon the village census, there was little adoption outside of the research project that introduced microdosing to the village. Households using microdosing (predominantly found within the research project) had, on average, higher socio-economic status, more cultivable land and larger labour forces. Profitability analysis indicated that microdosing was on average less profitable than the point-source application of the recommended dosage rate in Benin (the common alternative). However, farmers still expressed a desire to microdose, due to poorly functioning input markets, poor infrastructure, and lack of access to financial instruments, all of which limited the availability, access and utilization of inorganic fertilizer.

O extrativismo apresenta-se como uma oportunidade de ação que contribui para o desenvolvimento rural sustentável. O extrativismo do jaborandi representa um recurso de natureza comum, governado por diversos atores e sob influência do mercado. O jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, é um arbusto que ocorre no sub-bosque de florestas na região de transição entre os biomas Amazônia, Cerrado e Caatinga. Das suas folhas, é extraída a pilocarpina, usada, principalmente, no tratamento do glaucoma. As folhas do jaborandi são oriundas, em sua maioria, do extrativismo, no Piauí, Maranhão e Pará. O objetivo deste estudo foi compreender o sistema socioecológico (SES) e a governança do extrativismo do jaborandi e sua influência sobre a sustentabilidade da atividade na Amazônia e áreas de transição com o Cerrado e Caatinga. Já os objetivos específicos foram: 1) descrever os SESs do extrativismo do jaborandi; 2) caracterizar a governança dos SESs; 3) analisar a relação da governança dos diferentes SESs com a sustentabilidade do extrativismo do jaborandi. Para tanto, utilizou-se o Institutional Analysis & Development - IAD framework e os princípios de governança dos SESs robustos, analisando a governança e a sustentabilidade do SES do extrativismo do jaborandi. Esta pesquisa caracteriza-se como um estudo de análise institucional multiescalar, sendo a maior escala o Sistema Socioecológico “extrativismo do jaborandi”, considerada como toda a área de ocorrência do extrativismo. A escala mediana, regional, os dois subsistemas que correspondem à região amazônica e transição. O nível local foi caracterizado por quatro subsistemas socioecológicos: SES Agroextrativista Cocais, SES Agroextrativista Pluriétnico Transição, SES Expedicionário Pluriétnico Amazônia e SES Expedicionário Flona Carajás Amazônia. Os métodos constaram de análises qualitativas de dados secundários e dados primários - coletados em entrevistas realizadas com os atores do extrativismo do jaborandi. Observou-se a influência das políticas desenvolvimentistas sobre a devastação de parte da matriz florestal de ocorrência do jaborandi. Além disso, o mercado de pilocarpina teve larga influência sobre o extrativismo, com destaque para a domesticação da espécie e o desenvolvimento da pilocarpina sintética. Desde o ano de 2009, o Projeto de Valorização do Jaborandi também influencia o extrativismo, em busca de tornar a atividade mais sustentável. Identificou-se diferença de capacidade de suporte das populações de jaborandi entre o Subsistema Socioecológico Transição, que apresenta baixa capacidade, devido às condições edafoclimáticas mais severas, ao Subsistema Amazônia, onde as condições são mais favoráveis. Na região de transição, os extrativistas são agricultores familiares e residem próximos ao recurso, enquanto que, na Amazônia, os extrativistas, em sua maioria, são urbanos e, para acessarem o recurso, precisam organizar-se em equipes e fazerem uma expedição até as áreas de manejo, que são distantes e são áreas protegidas. Ao caracterizar a governança multiescalar dos SESs, encontrou-se um complexo arranjo institucional, composto por regras formais e informais de múltiplos níveis. Muitas das regras não são colocadas em uso, atribui-se esse fenômeno a não participação dos extrativistas na formulação dessas regras, à falta de monitoramento e sanções efetivas. Percebeu-se que quando os extrativistas participam de arenas de escolha coletiva, eles têm maiores ganhos. Evidenciou-se que onde há participação governamental, há maior governança. Ao analisar a relação da governança dos diferentes SES com a sustentabilidade, ficou evidente que o SES Expedicionário Flona Carajás Amazônia é mais sustentável do que os SES Agroextrativista Cocais e SES Agroextrativista Pluriétnico Transição, onde a capacidade de suporte e os arranjos institucionais são frágeis. Enquanto que o SES Expedicionário Pluriétnico Amazônia é parcialmente sustentável, por fragilidades de acesso ao recurso. Conclui-se que a governança, através das organizações e arranjos institucionais, bem como os SES, principalmente no que se refere à capacidade de suporte, atores envolvidos e organização social, influenciam na sustentabilidade das múltiplas escalas do extrativismo do jaborandi. / Forest management of non-wood products has the potential to contribute to sustainable rural development. The forest management of jaborandi is a common-pool resource, governed by different actors and under the influence of market. Jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, is a scrub that occurs in the forest floor of forests in the transition region between the biomes of Amazon, Cerrado and Caatinga. Pilocarpine, which is extracted from its leaves, is used mainly in the treatment of glaucoma. The jaborandi leaves come, mostly, from forest management in Piauí, Maranhão and Pará. The objective of this study was to understand the socio-ecological system (SES) and the governance of jaborandi’s management and its influence on the sustainability of the activity in the Amazon and transition areas of the Cerrado and Caatinga. The specific objectives were: 1) to describe the SES of jaborandi´s management; 2) to characterize the governance of the SESs; 3) to analyse the relationship of the governance of different SESs with the sustainability of jaborandi´s management. For this purpose, the IAD framework and the principles of governance of robust SESs were used, analysing the governance of SESs and the sustainability of jaborandi´s management. This research is a study of multiescalar institutional analysis, in which the major scale is the socio-ecological system “jaborandi´s management”, which covers the entire area of leaves collection. The median scale, regional, are the two subsystems that are the Amazon and Transition region. The local level was characterized by four socio-ecological subsystems: Agroextractivist Cocais, Agroextractivist Multiethnic Transition, Expeditionary Multiethnic Amazon and Expeditionary Flona Carajás Amazon. The methods consisted of qualitative analysis of secondary data and primary data - collected in interviews with the actors of the jaborandi´s management. The influence of developmentalism policies was observed over the devastation of part of the forest area of the jaborandi´s occurrence. In addition, the pilocarpine market had wide influence on the jaborandi´s management, highlighting the domestication of the species and the development of synthetic pilocarpine. Since year 2009, Projeto de Valorização do Jaborandi (Jaborandi Enhancement Project) has also influenced the management, seeking to make the activity more sustainable. There was a difference in the support capacity of populations between jaborandi Subsystem socioecological Transition, which has low capacity due to the most severe climate and soil conditions, and the Amazon subsystem, where conditions are more favorable. In the transition region, the leaves collectors are family farmers and reside near the resource, while in the Amazon, the leaves collectors are mostly urban dwellers and to access the resource they need to organize themselves into teams and make an expedition to the harvesting areas, which are distant and protected areas. To characterize the multiescalar governance of SES, a complex institutional arrangement has been identified, consisting of formal and informal rules of multiple levels. Many of the rules are not applied, which phenomenon is attributed to the non-participation of leaves collectors in the formulation of these rules, the lack of monitoring and effective sanctions. It has been observed that when the leaves collectors participate in collective choice arenas, they have greater benefits. It has been perceived that where there is government close participation, there is greater governance. By analysing the relationship of the governance of different SESs and sustainability, it became clear that the SES Expeditionary Flona Carajás Amazon is more sustainable than the SES Agroextrativist Cocais and SES Agroextrativist Multiethnic Transition, where the support capacity and institutional arrangements are fragile. While the SES Expeditionary Multiethnic Amazon is partially sustainable, there are weaknesses in access to the resource. The conclusion points out that the governance, through organizations and institutional arrangements, as well as the SES, especially with regard to support capacity, stakeholders involvement and social organization, influence the sustainability of multiple scales of jaborandi´s management.

abstract: Sustainability depends in part on our capacity to resolve dilemmas of the commons in Coupled Infrastructure Systems (CIS). Thus, we need to know more about how to incentivize individuals to take collective action to manage shared resources. Moreover, given that we will experience new and more extreme weather events due to climate change, we need to learn how to increase the robustness of CIS to those shocks. This dissertation studies irrigation systems to contribute to the development of an empirically based theory of commons governance for robust systems. I first studied the eight institutional design principles (DPs) for long enduring systems of shared resources that the Nobel Prize winner Elinor Ostrom proposed in 1990. I performed a critical literature review of 64 studies that looked at the institutional configuration of CIS, and based on my findings I propose some modifications of their definitions and application in research and policy making. I then studied how the revisited design principles, when analyzed conjointly with biophysical and ethnographic characteristics of CISs, perform to avoid over-appropriation, poverty and critical conflicts among users of an irrigation system. After carrying out a meta-analysis of 28 cases around the world, I found that particular combinations of those variables related to population size, countries corruption, the condition of water storage, monitoring of users behavior, and involving users in the decision making process for the commons governance, were sufficient to obtain the desired outcomes. The two last studies were based on the Peruvian Piura Basin, a CIS that has been exposed to environmental shocks for decades. I used secondary and primary data to carry out a longitudinal study using as guidance the robustness framework, and different hypothesis from prominent collapse theories to draw potential explanations. I then developed a dynamic model that shows how at the current situation it is more effective to invest in rules enforcement than in the improvement of the physical infrastructure (e.g. reservoir). Finally, I explored different strategies to increase the robustness of the system, through enabling collective action in the Basin. / Dissertation/Thesis / Doctoral Dissertation Sustainability 2017

Depuis des millénaires, l’éléphant d’Asie joue un rôle important dans la culture, l’économie et la construction des pays asiatiques. Près d’un quart de la population de cette espèce emblématique et menacée est constituée d’éléphants dits captifs. Toutefois, les législations nationales comme les programmes de conservation ont tendance à traiter séparément les populations captives et sauvages. Au Laos et au Myanmar, la tradition d’élevage par les villageois et les interactions entre éléphants sauvages et éléphants de villages perdurent.L’objectif de cette thèse est de qualifier et quantifier ces interactions afin de mieux comprendre leurs dynamiques et leurs rôles dans la survie de l’espèce. Je me suis attaché à décrire les facteurs déterminant le système socio-écologique humain - éléphant de village - éléphant sauvage et sa résilience à travers une approche interdisciplinaire et intégrative.Une étude ethnoécologique a permis d’analyser l’évolution récente du système socio-écologique homme-éléphant au Laos et ses conséquences sur les relations humain-éléphant, les pratiques d’élevage et la perception de l’espèce chez les propriétaires d’éléphants. L'émergence depuis les années 2000 de la marchandisation de la nature et de la restriction de l'accès aux forêts a conduit, d’une part, à la ségrégation entre éléphants sauvages et éléphants de villages, et d’autre part, à l’intensification de l'élevage de ces derniers. Or, la tolérance des communautés à la présence des éléphants sauvages semble liée au principe de réciprocité. Ainsi, les propriétaires ayant accès aux mâles sauvages pour féconder leurs femelles acceptent leur présence contrairement aux cornacs engagés dans le débardage du bois.J’ai ensuite construit un modèle bio-économique pour quantifier les effets des stratégies socio-économiques sur la viabilité à long terme de la population d’éléphants de villages du Laos. J’ai montré que la fécondité est impactée en premier lieu par la dynamique de la population sauvage à travers la reproduction entre femelles de villages et mâles sauvages. En second lieu, le taux de fécondité dépend de l’intérêt financier des propriétaires à faire de la reproduction. Ainsi la viabilité de la population est fortement dépendante des conditions socio-économiques sur le court terme et de l’efficience de la conservation des populations sauvages sur le long terme.Une étude de génétique des populations a montré que la diversité génétique des populations sauvages et de villages était élevée et que ces populations constituaient un ensemble homogène au Laos et au Myanmar. L’isolement des populations sauvages et la ségrégation croissante des populations de villages engendreront un appauvrissement génétique sur le long terme qu’il est possible de limiter par des mesures de gestion favorisant le flux de gènes au niveau régional et entre les deux populations, notamment en les considérant comme une unité de gestion commune.Ces deux études illustrent que la résilience du système socio-écologique est la résultante de multiples facteurs agissant à différents niveaux ou échelles, dont les effets sont parfois opposés.Cette thèse permet enfin de discuter des conditions de la résilience et de la viabilité à long terme du système socio-écologique humain-éléphant et d’explorer différents scénarios futurs en s’interrogeant également sur le possible processus de domestication de l’espèce. / For thousands of years, the Asian elephant has played an important role in the culture, economy and construction of Asian nations. Almost a quarter of the population of this emblematic and threatened species consists of so-called captive elephants. However, both national legislation and conservation programmes tend to treat captive and wild populations separately. In Laos and Myanmar, the tradition of elephant handling by villagers and the interactions between wild and village elephants still persist.The objective of this thesis is to qualify and quantify these interactions to better understand their dynamics and roles in the survival of the species. I described the factors driving the socio-ecological system between humans, village and wild elephants and its resilience through an interdisciplinary and integrative approach.Based on an ethnoecological study, I analyzed the recent evolution of the human-elephant socio-ecological system in Laos and its consequences on human-elephant relations, husbandry practices and the perception of the species among elephant owners. The emergence since 2000 of the commodification of nature and the restriction of access to forests has led, on the one hand, to the segregation between wild and village elephants and, on the other hand, to the transition from a traditional to an intensive keeping system of village elephants. Community perception and tolerance towards wild elephants is linked to the principle of reciprocity. Owners having access to wild males to sire their females accept the presence of wild elephants contrary to mahouts engaged in logging activities.I then built a bio-economic model to quantify the effects of socio-economic strategies on the long-term viability of village elephant population in Laos. I demonstrated that fecundity is impacted primarily by the dynamics of the wild population through reproduction between village females and wild males. Second, the fecundity is impacted by the financial incentive of elephant owners tobreed their animals instead of working. Thus population viability is highly dependent on socio-economic conditions in the short term and the efficiency of wild elephant conservation in the long term.A population genetics study showed that the genetic diversity of wild and village elephant was high and differentiation was weak between Laos and Myanmar. The isolation of wild populations and the increasing segregation of village elephants will lead to genetic loss and inbreeding that can be managed by promoting gene flows at the regional level and between the two populations. The study suggests considering both populations from the two countries as a unique management unit. These two studies illustrate that resilience of the socio-ecological system is the result of multiple factors acting at different levels or scales, sometimes in opposite ways.Finally, this thesis allows to discuss the conditions of resilience and long-term viability of the human-elephant socio-ecological system and to explore potential scenarios including the on-going domestication process of the species.

O extrativismo apresenta-se como uma oportunidade de ação que contribui para o desenvolvimento rural sustentável. O extrativismo do jaborandi representa um recurso de natureza comum, governado por diversos atores e sob influência do mercado. O jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, é um arbusto que ocorre no sub-bosque de florestas na região de transição entre os biomas Amazônia, Cerrado e Caatinga. Das suas folhas, é extraída a pilocarpina, usada, principalmente, no tratamento do glaucoma. As folhas do jaborandi são oriundas, em sua maioria, do extrativismo, no Piauí, Maranhão e Pará. O objetivo deste estudo foi compreender o sistema socioecológico (SES) e a governança do extrativismo do jaborandi e sua influência sobre a sustentabilidade da atividade na Amazônia e áreas de transição com o Cerrado e Caatinga. Já os objetivos específicos foram: 1) descrever os SESs do extrativismo do jaborandi; 2) caracterizar a governança dos SESs; 3) analisar a relação da governança dos diferentes SESs com a sustentabilidade do extrativismo do jaborandi. Para tanto, utilizou-se o Institutional Analysis & Development - IAD framework e os princípios de governança dos SESs robustos, analisando a governança e a sustentabilidade do SES do extrativismo do jaborandi. Esta pesquisa caracteriza-se como um estudo de análise institucional multiescalar, sendo a maior escala o Sistema Socioecológico “extrativismo do jaborandi”, considerada como toda a área de ocorrência do extrativismo. A escala mediana, regional, os dois subsistemas que correspondem à região amazônica e transição. O nível local foi caracterizado por quatro subsistemas socioecológicos: SES Agroextrativista Cocais, SES Agroextrativista Pluriétnico Transição, SES Expedicionário Pluriétnico Amazônia e SES Expedicionário Flona Carajás Amazônia. Os métodos constaram de análises qualitativas de dados secundários e dados primários - coletados em entrevistas realizadas com os atores do extrativismo do jaborandi. Observou-se a influência das políticas desenvolvimentistas sobre a devastação de parte da matriz florestal de ocorrência do jaborandi. Além disso, o mercado de pilocarpina teve larga influência sobre o extrativismo, com destaque para a domesticação da espécie e o desenvolvimento da pilocarpina sintética. Desde o ano de 2009, o Projeto de Valorização do Jaborandi também influencia o extrativismo, em busca de tornar a atividade mais sustentável. Identificou-se diferença de capacidade de suporte das populações de jaborandi entre o Subsistema Socioecológico Transição, que apresenta baixa capacidade, devido às condições edafoclimáticas mais severas, ao Subsistema Amazônia, onde as condições são mais favoráveis. Na região de transição, os extrativistas são agricultores familiares e residem próximos ao recurso, enquanto que, na Amazônia, os extrativistas, em sua maioria, são urbanos e, para acessarem o recurso, precisam organizar-se em equipes e fazerem uma expedição até as áreas de manejo, que são distantes e são áreas protegidas. Ao caracterizar a governança multiescalar dos SESs, encontrou-se um complexo arranjo institucional, composto por regras formais e informais de múltiplos níveis. Muitas das regras não são colocadas em uso, atribui-se esse fenômeno a não participação dos extrativistas na formulação dessas regras, à falta de monitoramento e sanções efetivas. Percebeu-se que quando os extrativistas participam de arenas de escolha coletiva, eles têm maiores ganhos. Evidenciou-se que onde há participação governamental, há maior governança. Ao analisar a relação da governança dos diferentes SES com a sustentabilidade, ficou evidente que o SES Expedicionário Flona Carajás Amazônia é mais sustentável do que os SES Agroextrativista Cocais e SES Agroextrativista Pluriétnico Transição, onde a capacidade de suporte e os arranjos institucionais são frágeis. Enquanto que o SES Expedicionário Pluriétnico Amazônia é parcialmente sustentável, por fragilidades de acesso ao recurso. Conclui-se que a governança, através das organizações e arranjos institucionais, bem como os SES, principalmente no que se refere à capacidade de suporte, atores envolvidos e organização social, influenciam na sustentabilidade das múltiplas escalas do extrativismo do jaborandi. / Forest management of non-wood products has the potential to contribute to sustainable rural development. The forest management of jaborandi is a common-pool resource, governed by different actors and under the influence of market. Jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, is a scrub that occurs in the forest floor of forests in the transition region between the biomes of Amazon, Cerrado and Caatinga. Pilocarpine, which is extracted from its leaves, is used mainly in the treatment of glaucoma. The jaborandi leaves come, mostly, from forest management in Piauí, Maranhão and Pará. The objective of this study was to understand the socio-ecological system (SES) and the governance of jaborandi’s management and its influence on the sustainability of the activity in the Amazon and transition areas of the Cerrado and Caatinga. The specific objectives were: 1) to describe the SES of jaborandi´s management; 2) to characterize the governance of the SESs; 3) to analyse the relationship of the governance of different SESs with the sustainability of jaborandi´s management. For this purpose, the IAD framework and the principles of governance of robust SESs were used, analysing the governance of SESs and the sustainability of jaborandi´s management. This research is a study of multiescalar institutional analysis, in which the major scale is the socio-ecological system “jaborandi´s management”, which covers the entire area of leaves collection. The median scale, regional, are the two subsystems that are the Amazon and Transition region. The local level was characterized by four socio-ecological subsystems: Agroextractivist Cocais, Agroextractivist Multiethnic Transition, Expeditionary Multiethnic Amazon and Expeditionary Flona Carajás Amazon. The methods consisted of qualitative analysis of secondary data and primary data - collected in interviews with the actors of the jaborandi´s management. The influence of developmentalism policies was observed over the devastation of part of the forest area of the jaborandi´s occurrence. In addition, the pilocarpine market had wide influence on the jaborandi´s management, highlighting the domestication of the species and the development of synthetic pilocarpine. Since year 2009, Projeto de Valorização do Jaborandi (Jaborandi Enhancement Project) has also influenced the management, seeking to make the activity more sustainable. There was a difference in the support capacity of populations between jaborandi Subsystem socioecological Transition, which has low capacity due to the most severe climate and soil conditions, and the Amazon subsystem, where conditions are more favorable. In the transition region, the leaves collectors are family farmers and reside near the resource, while in the Amazon, the leaves collectors are mostly urban dwellers and to access the resource they need to organize themselves into teams and make an expedition to the harvesting areas, which are distant and protected areas. To characterize the multiescalar governance of SES, a complex institutional arrangement has been identified, consisting of formal and informal rules of multiple levels. Many of the rules are not applied, which phenomenon is attributed to the non-participation of leaves collectors in the formulation of these rules, the lack of monitoring and effective sanctions. It has been observed that when the leaves collectors participate in collective choice arenas, they have greater benefits. It has been perceived that where there is government close participation, there is greater governance. By analysing the relationship of the governance of different SESs and sustainability, it became clear that the SES Expeditionary Flona Carajás Amazon is more sustainable than the SES Agroextrativist Cocais and SES Agroextrativist Multiethnic Transition, where the support capacity and institutional arrangements are fragile. While the SES Expeditionary Multiethnic Amazon is partially sustainable, there are weaknesses in access to the resource. The conclusion points out that the governance, through organizations and institutional arrangements, as well as the SES, especially with regard to support capacity, stakeholders involvement and social organization, influence the sustainability of multiple scales of jaborandi´s management.

O extrativismo apresenta-se como uma oportunidade de ação que contribui para o desenvolvimento rural sustentável. O extrativismo do jaborandi representa um recurso de natureza comum, governado por diversos atores e sob influência do mercado. O jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, é um arbusto que ocorre no sub-bosque de florestas na região de transição entre os biomas Amazônia, Cerrado e Caatinga. Das suas folhas, é extraída a pilocarpina, usada, principalmente, no tratamento do glaucoma. As folhas do jaborandi são oriundas, em sua maioria, do extrativismo, no Piauí, Maranhão e Pará. O objetivo deste estudo foi compreender o sistema socioecológico (SES) e a governança do extrativismo do jaborandi e sua influência sobre a sustentabilidade da atividade na Amazônia e áreas de transição com o Cerrado e Caatinga. Já os objetivos específicos foram: 1) descrever os SESs do extrativismo do jaborandi; 2) caracterizar a governança dos SESs; 3) analisar a relação da governança dos diferentes SESs com a sustentabilidade do extrativismo do jaborandi. Para tanto, utilizou-se o Institutional Analysis & Development - IAD framework e os princípios de governança dos SESs robustos, analisando a governança e a sustentabilidade do SES do extrativismo do jaborandi. Esta pesquisa caracteriza-se como um estudo de análise institucional multiescalar, sendo a maior escala o Sistema Socioecológico “extrativismo do jaborandi”, considerada como toda a área de ocorrência do extrativismo. A escala mediana, regional, os dois subsistemas que correspondem à região amazônica e transição. O nível local foi caracterizado por quatro subsistemas socioecológicos: SES Agroextrativista Cocais, SES Agroextrativista Pluriétnico Transição, SES Expedicionário Pluriétnico Amazônia e SES Expedicionário Flona Carajás Amazônia. Os métodos constaram de análises qualitativas de dados secundários e dados primários - coletados em entrevistas realizadas com os atores do extrativismo do jaborandi. Observou-se a influência das políticas desenvolvimentistas sobre a devastação de parte da matriz florestal de ocorrência do jaborandi. Além disso, o mercado de pilocarpina teve larga influência sobre o extrativismo, com destaque para a domesticação da espécie e o desenvolvimento da pilocarpina sintética. Desde o ano de 2009, o Projeto de Valorização do Jaborandi também influencia o extrativismo, em busca de tornar a atividade mais sustentável. Identificou-se diferença de capacidade de suporte das populações de jaborandi entre o Subsistema Socioecológico Transição, que apresenta baixa capacidade, devido às condições edafoclimáticas mais severas, ao Subsistema Amazônia, onde as condições são mais favoráveis. Na região de transição, os extrativistas são agricultores familiares e residem próximos ao recurso, enquanto que, na Amazônia, os extrativistas, em sua maioria, são urbanos e, para acessarem o recurso, precisam organizar-se em equipes e fazerem uma expedição até as áreas de manejo, que são distantes e são áreas protegidas. Ao caracterizar a governança multiescalar dos SESs, encontrou-se um complexo arranjo institucional, composto por regras formais e informais de múltiplos níveis. Muitas das regras não são colocadas em uso, atribui-se esse fenômeno a não participação dos extrativistas na formulação dessas regras, à falta de monitoramento e sanções efetivas. Percebeu-se que quando os extrativistas participam de arenas de escolha coletiva, eles têm maiores ganhos. Evidenciou-se que onde há participação governamental, há maior governança. Ao analisar a relação da governança dos diferentes SES com a sustentabilidade, ficou evidente que o SES Expedicionário Flona Carajás Amazônia é mais sustentável do que os SES Agroextrativista Cocais e SES Agroextrativista Pluriétnico Transição, onde a capacidade de suporte e os arranjos institucionais são frágeis. Enquanto que o SES Expedicionário Pluriétnico Amazônia é parcialmente sustentável, por fragilidades de acesso ao recurso. Conclui-se que a governança, através das organizações e arranjos institucionais, bem como os SES, principalmente no que se refere à capacidade de suporte, atores envolvidos e organização social, influenciam na sustentabilidade das múltiplas escalas do extrativismo do jaborandi. / Forest management of non-wood products has the potential to contribute to sustainable rural development. The forest management of jaborandi is a common-pool resource, governed by different actors and under the influence of market. Jaborandi, Pilocarpus microphyllus Stapf ex Wardlew, is a scrub that occurs in the forest floor of forests in the transition region between the biomes of Amazon, Cerrado and Caatinga. Pilocarpine, which is extracted from its leaves, is used mainly in the treatment of glaucoma. The jaborandi leaves come, mostly, from forest management in Piauí, Maranhão and Pará. The objective of this study was to understand the socio-ecological system (SES) and the governance of jaborandi’s management and its influence on the sustainability of the activity in the Amazon and transition areas of the Cerrado and Caatinga. The specific objectives were: 1) to describe the SES of jaborandi´s management; 2) to characterize the governance of the SESs; 3) to analyse the relationship of the governance of different SESs with the sustainability of jaborandi´s management. For this purpose, the IAD framework and the principles of governance of robust SESs were used, analysing the governance of SESs and the sustainability of jaborandi´s management. This research is a study of multiescalar institutional analysis, in which the major scale is the socio-ecological system “jaborandi´s management”, which covers the entire area of leaves collection. The median scale, regional, are the two subsystems that are the Amazon and Transition region. The local level was characterized by four socio-ecological subsystems: Agroextractivist Cocais, Agroextractivist Multiethnic Transition, Expeditionary Multiethnic Amazon and Expeditionary Flona Carajás Amazon. The methods consisted of qualitative analysis of secondary data and primary data - collected in interviews with the actors of the jaborandi´s management. The influence of developmentalism policies was observed over the devastation of part of the forest area of the jaborandi´s occurrence. In addition, the pilocarpine market had wide influence on the jaborandi´s management, highlighting the domestication of the species and the development of synthetic pilocarpine. Since year 2009, Projeto de Valorização do Jaborandi (Jaborandi Enhancement Project) has also influenced the management, seeking to make the activity more sustainable. There was a difference in the support capacity of populations between jaborandi Subsystem socioecological Transition, which has low capacity due to the most severe climate and soil conditions, and the Amazon subsystem, where conditions are more favorable. In the transition region, the leaves collectors are family farmers and reside near the resource, while in the Amazon, the leaves collectors are mostly urban dwellers and to access the resource they need to organize themselves into teams and make an expedition to the harvesting areas, which are distant and protected areas. To characterize the multiescalar governance of SES, a complex institutional arrangement has been identified, consisting of formal and informal rules of multiple levels. Many of the rules are not applied, which phenomenon is attributed to the non-participation of leaves collectors in the formulation of these rules, the lack of monitoring and effective sanctions. It has been observed that when the leaves collectors participate in collective choice arenas, they have greater benefits. It has been perceived that where there is government close participation, there is greater governance. By analysing the relationship of the governance of different SESs and sustainability, it became clear that the SES Expeditionary Flona Carajás Amazon is more sustainable than the SES Agroextrativist Cocais and SES Agroextrativist Multiethnic Transition, where the support capacity and institutional arrangements are fragile. While the SES Expeditionary Multiethnic Amazon is partially sustainable, there are weaknesses in access to the resource. The conclusion points out that the governance, through organizations and institutional arrangements, as well as the SES, especially with regard to support capacity, stakeholders involvement and social organization, influence the sustainability of multiple scales of jaborandi´s management.

The environmental management of watersheds presents a complex governance issue due to their large spatial scales that include overlapping jurisdictions, competing interests in resource use, and lack of coordination among stakeholders. The Rideau Canal, spanning 200 km between the cities of Ottawa and Kingston, is an interesting case study as it is a multi-watershed system over which municipal, provincial and federal governments have authority. However, these governments have been unsuccessful in addressing system-wide issues such as shoreline development, erosion and invasive species that have significantly impacted the ecological integrity of the canal. A shift toward polycentric governance, which are systems of multi-scale governance, in which well-informed publics can contribute to the Rideau Canal’s management is required. This thesis examines how co-governance can be conceptualized for the RC by (1) analyzing convergences in stakeholder perspectives about the environment and governance, and (2) comparing collaborative causal mapping exercises with various stakeholders to current government engagement efforts. A tiered co-governance framework that intentionally links existing small-scale activities to system-wide formal venues of knowledge sharing could democratize environmental governance on the Rideau Canal to improve its management. Beyond its practical contributions, this research also contributes to developing the academic literature on co-governance for multi-watershed waterways that have both constructed and natural aspects.

Twenty five years after AIDS was first scientifically described, the disease continues to take its toll on the human population. HIV/AIDS disproportionately affects marginalized groups such as poor, underserved, minority populations. In the United States, Blacks become infected with and die from HIV/AIDS more than any other ethnic or racial group. Despite a vast body of literature on HIV/AIDS, little research has focused on black heterosexual men and even fewer studies have explored the context of risk among subgroups of black men. Using qualitative research methods and a socio-ecological framework, this study explored the intrapersonal, socio-cultural, and behavioral factors that influence sexual behaviors in ethnic subgroups of black men who identify as heterosexual. Further, the study examined black women's perceptions of the sexual behaviors of black men. Conducted in a metropolitan area in Southwest Florida, the study consisted of two phases: 1) semi-structured in-depth interviews were conducted among U.S.-born (N=15) and Haitian-born (N=14) heterosexual men who are 18 years and older and have lived in the U.S. for at least 3 years. 2) Using focus group methodology, phase 2 explored black women's (N=23) perceptions of black male sexual behaviors. Study findings have significant implications for public health education, research and practice. Findings reveal that while Haitian-born and U.S.-born men have high levels of knowledge about HIV, they also ascribe to HIV conspiracy beliefs and practice high risk sexual behaviors such as unprotected sex and partner concurrency. Results show that black men's sexual behaviors are influenced by socio-ecological factors such as family norms, hip-hop culture and religious beliefs. Female study participants perceived factors such as masculine ideologies, socialization, and the male-to-female ratio imbalance as critical influences on male sexual behaviors. While intrapersonal approaches are important to address HIV risk behaviors, ecological frameworks are necessary to inform the development of HIV prevention programs that address the socio-ecological factors that create an environment of risk. This inquiry underscores cultural and gender differences in the conceptualization of HIV/AIDS. Findings have implications for HIV prevention and demonstrate the need for gender-specific and culturally relevant HIV prevention approaches for U.S.-born and Haitian-born blacks.