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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.
381

Flowing Together: Addressing Social-Ecological Scale Mismatches for Estuary Watershed Restoration in the Whidbey Basin, Puget Sound, WA

January 2015 (has links)
abstract: Landscape restoration is a global priority as evidenced by the United Nations’ 2020 goal to restore 150 million hectares of land worldwide. Restoration is particularly needed in estuaries and their watersheds as society depends on these environments for numerous benefits. Estuary restoration is often undermined by social-ecological scale mismatch, the incongruence between governing units and the bio-physical resources they seek to govern. Despite growing recognition of this fact, few empirical studies focus on scale mismatches in environmental restoration work. Using a sub-basin of Puget Sound, Washington, U.S.A., I analyze scale mismatches in estuary restoration. I take a network science approach because governance networks can bridge scale mismatches. I combine quantitative social network analysis (SNA), geographic information systems (GIS), and qualitative interview analysis. Spatial network analysis reveals several areas with weak scale mismatch bridging networks. These weak social networks are then compared to ecological restoration needs to identify coupled social-ecological restoration concerns. Subsequent study investigates jurisdictional and sectoral network integration because governance siloes contribute to scale mismatch. While the network is fairly well integrated, several sectors do not interact or interact very little. An analysis of collaboration reasons disentangles the idea of generic collaboration. Among three relationship types considered, mandated relationships contribute almost 5.5 times less to perceived collaboration productivity than shared interest relationships, highlighting the benefits of true collaborations in watershed governance. Lastly, the effects of scale mismatch on individual restoration projects and landscape level restoration planning are assessed through qualitative interview analysis. Results illustrate why human-environment processes should be included in landscape restoration planning. Social factors are not considered as constraints to restoration but rather part of the very landscape fabric to be restored. Scale mismatch is conceptualized as a complex social-ecological landscape pattern that affects the flow of financial, human, and natural capital across the landscape. This represents a new way of thinking about scale mismatch and landscape restoration in complex multi-level governance systems. In addition, the maps, network diagnostics, and narratives in this dissertation can help practitioners in Puget Sound and provide proofs of concepts that can be replicated elsewhere for restoration and broader conservation sciences. / Dissertation/Thesis / Doctoral Dissertation Geography 2015
382

Protected Areas, Tourism and Rural Community Livelihoods in Botswana

January 2013 (has links)
abstract: Firstly, this study uses community asset mapping guided by the Community Capitals Framework (CCF) to explore the linkages between Protected Areas (PAs), tourism and community livelihoods. Secondly, it assesses changes in community needs facilitated by community participation in wildlife-based tourism in a protected area setting. Thirdly and finally, the study assesses whether the introduction of community wildlife-based tourism in a protected area as a sustainable management tool has led to the spiraling up or down of community capitals. The study adopted qualitative research method approach and made use of data collected through community asset mapping supplemented by data from focus group discussions, households, key informants, and secondary data materials that were analyzed and interpreted in light of community capital framework. The Chobe National Park (CNP) and Chobe Enclave Conservation Trust (CECT); a community living adjacent to CNP in Botswana provides the context on which this study's discussion focuses. Results indicate that the accession of Botswana from colonialism through post colonialism era intertwined considerable institutional arrangement changes in the field of protected area governance that reflects evolutionary management styles. Protected areas, tourism and community livelihoods linkages are based on many inter-dependents of community capitals relationships which are dependent on community socio-economic activities. In assessing changes in community needs, the results indicate that participation in wildlife-based tourism has brought both positive and negative changes that have implications on both the status quo for community livelihoods and protected areas, namely; the influence of changes in community capitals dynamics, mechanization and commercialization of agriculture, government funded infrastructural development, income generation, and the commodification of some of the community capitals. Finally, the increased livelihoods options and diversification dynamics, fragile wildlife-livestock co-existence, heightened human-wildlife conflicts, environmental education and awareness are the emerging themes that explain how the introduction of tourism in a protected area setting affect the spiraling up and down of the community capitals dynamics. / Dissertation/Thesis / Ph.D. Community Resources and Development 2013
383

Odocoileus hemionus (hemionus) on the North Rim of the Grand Canyon: A Study of Wildlife Nutrition, Metabolic Response and Interaction of the Herd with the Winter Habitat on the North Kaibab Plateau.

January 2014 (has links)
abstract: A mule deer herd exists on the northern rim of the Grand Canyon, located on the North Kaibab Plateau. Historical references to this indigenous mule deer herd presented reports of periodic population irruption and collapse. Partially funded by the Arizona Game and Fish Department and the Arizona Deer Association, examination of herd nutritional and metabolic status from the Fall 2005 - Spring 2008 was completed at the request of AzGFD and ADA. Habitat analysis included forage micro-histological, protein, and caloric content plus whole blood and plasma assays gauging herd metabolic response. Modelling was completed using best management practices wildlife energy demand calculations and principal component analysis. Forage quality analysis and modelling suggest a sufficient amount of nitrogen (N) available (DPI) to the deer for protein synthesis. Energy analysis (MEI) of forage suggest caloric deficiencies are widely prevalent on the north Kaibab plateau. Principal component analysis integrates forage and metabolic results providing a linear regression model describing the dynamics of forage utilization, energy availability, and forage nitrogen supply with metabolic demand and response of the mule deer herd. Most of the plasma and blood metabolic indicators suggest baseline values for the North Kaibab mule deer. Albumin values are in agreement with albumin values for mule deer in the Southwest. I suggest that the agreed values become a standard for mule deer in the Southwestern U.S. As excess dietary N is converted to a caloric resource, a continual state of under-nutrition exists for the deer upon entering the N. Kaibab winter range. The population is exceeding the nutritional resource plane that the winter habitat provides. Management recommendations include implementation of multiple small-scale habitat rehabilitation efforts over time, including invasive juniper (Juniperous osteosperma) and piñon (Pinus edulis) management, prescribed burning to control big sage (Artemesia tridentata) populations, and reseeding treated areas with a seed mix of native shrubs, grasses and forbs. I recommended that the population size of the North Kaibab deer herd is maintained at the current size with natural selection controlling growth, or the population be artificially reduced through increased hunting opportunities. / Dissertation/Thesis / Ph.D. Environmental Design and Planning 2014
384

A economia solidária e a sustentabilidade sócio-ambiental da agricultura familiar no município de Colinas do Tocantins

Mendanha, José Francisco 01 June 2009 (has links)
Made available in DSpace on 2015-04-11T13:54:17Z (GMT). No. of bitstreams: 1 jose francisco.pdf: 5059236 bytes, checksum: eda00a6a239aa8d2301fbcc3fd91939b (MD5) Previous issue date: 2009-06-01 / This study aimed to analyze the relationship of solidarity economy with the socialenvironmental sustainability of family farming in the City of Colinas do Tocantins, state of Tocantins. This is a case study, conforming empirical orientation of production and description of knowledge, in which 10 units were surveyed in the family s unit of Real Settlement Project in the City of Colinas de Tocantins, state of Tocantins. It was used as instruments for collecting data from the field open questionnaire, documentation, structured interviews and direct observation. Sought to understand the trajectories and their own conceptions of family farmers on their experience of practical solidarity directing more attention to the ways historically constructed to deal with the management of production, ways of entering the market, the relationship between the settled families, to assess the gains economic monetary and non-monetary arising in the practice of social relations of solidarity and reciprocity. It was observed that the characteristics of social relations, the ties of solidarity and organization group of settlers in the background influenced the development of criteria and standards for the management of events in the settlement that allowed create mechanisms for participation in the relationship with internal and external organizations. Moreover, we could see that, as a result of these experiences the settlers of the project have achieved several gains, both materials, with regard to ownership of land and into the market and generate income households, for the intangible, that are the results in terms of training, achievement of partnership and reciprocity of influence in public policy, solidarity and citizenship. / Esta pesquisa teve como objetivo analisar a relação da economia solidária com a sustentabilidade sócio-ambiental da agricultura familiar no município de Colinas do Tocantins Estado do Tocantins. Trata-se de um Estudo de Caso, segundo orientação empírica de produção e descrição do conhecimento, no qual foram amostradas 10 unidades de produção no Projeto de Assentamento Real no município de Colinas de Tocantins, estado do Tocantins. Utilizou-se como instrumentos para coleta de dados de campo o questionário aberto, documentação, entrevista estruturada e observação direta. Procurou-se compreender as trajetórias e concepções próprias dos agricultores familiares sobre suas experiências de práticas solidárias direcionando maior atenção para as formas historicamente construídas de lidar com a gestão da produção, as formas de interação no mercado, a relação estabelecida entre as famílias assentadas, avaliar os ganhos econômicos monetários e não monetários advindos das práticas de relações sociais de solidariedade e reciprocidade. Observou-se que as características das relações sociais, os laços de solidariedade e organização preexistentes no grupo de assentados influenciou na elaboração de critérios e normas de gestão dos acontecimentos no assentamento que possibilitaram criar mecanismos de participação interna e na relação com as organizações externas. Além disso, pôde-se perceber que, em decorrência destas experiências os assentados do projeto têm alcançado diversos ganhos, tanto materiais, no que se refere a posse da terra e interação no mercado e a geração de renda das famílias, quanto aos imateriais, que são os resultados em termos de formação, reciprocidade e conquista de parcerias, de influência nas políticas públicas, de solidariedade, e de cidadania.
385

Por uma agricultura mais sustentável: práticas de produção responsável em propriedades rurais privadas / Towards a mores sustainable agriculture: responsible production practices in rural private properties

Pacífico, Eduardo dos Santos 24 February 2017 (has links)
Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-16T11:56:05Z No. of bitstreams: 2 Tese - Eduardo dos Santos Pacífico - 2017.pdf: 4744706 bytes, checksum: b8550d4c1546f2a867c50a00e8a949ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-05-16T11:56:24Z (GMT) No. of bitstreams: 2 Tese - Eduardo dos Santos Pacífico - 2017.pdf: 4744706 bytes, checksum: b8550d4c1546f2a867c50a00e8a949ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-05-16T11:56:24Z (GMT). No. of bitstreams: 2 Tese - Eduardo dos Santos Pacífico - 2017.pdf: 4744706 bytes, checksum: b8550d4c1546f2a867c50a00e8a949ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-02-24 / Fundação de Amparo à Pesquisa do Estado de Goiás - FAPEG / Agriculture is the dominant use on Earth’s surface and rural producers are the principal managers of useable lands, but promoting a sustainable agriculture still a challenge. Despite better agriculture practices is an urgent need, there are many barriers and no consensus in the responsible factors to its adoption among farmers. We evaluated hundreds of Brazilian medium to large private industrial rural properties - farms that produces commodities aiming primarily to sell and supported by paid labor. All farms evaluated are supported by NGO Aliança da Terra in the Producing Right platform, a voluntary and non-punitive program to promote better agriculture practices. We evaluated how (1) the characteristics of the Responsible Production practices, (2) the characteristics of the farmer, and (3) the characteristics of the private property affect agriculture responsible production practices adoption. We used primary data. Farmers committed to mandatory Responsible Production practices, even if these practices have high innovation degree and low relationship with productivity, but they executed practices based on finances and shorter planning horizon. Higher market pressure resulted in better environmental practices. Older farmers performed better in social and responsible production practices. Producers with higher schooling executed better social practices. Farmers with larger rural properties and crop producers performed better for sustainable agricultural practices than smaller and livestock producers. Instead of only command and control strategy, we need to create positive incentives to eliminate financial constraints for sustainability, support farmers to be innovators, reduce their uncertainty (political and financial), and eliminate information gap to spread successfully Responsible Production practices. / A agricultura é o uso dominante na superfície terrestre e os produtores rurais são os principais administradores do solo, entretanto enfrentamos o desafio de promover uma agricultura sustentável. Existem diversas barreiras e nenhum consenso sobre os fatores responsáveis pela adoção de melhores práticas agrícolas. Nós avaliamos centenas de médias e grandes propriedades rurais privadas industriais – fazendas produtoras de commodities que visam a comercialização e utilizam mão de obra assalariada. Todos as propriedades avaliadas são apoiadas pela ONG Aliança da Terra e fazem parte da plataforma Produzindo Certo, um programa voluntário e não punitivo que promove melhores práticas agropecuárias. Utilizando dados primários, nós avaliamos como (1) as características das práticas de produção responsável, (2) as características dos produtores rurais e (3) as características da propriedade rural afetam a adoção de melhores práticas agropecuárias. Encontramos que os produtores rurais se comprometem com práticas obrigatórias por lei, mas executam as práticas mais baratas e com visão de curto prazo. Eles reagem a pressão de sindicatos e associações com melhores práticas ambientais. Produtores mais velhos executam melhores práticas sociais e de produção responsável, enquanto que produtores com maior escolaridade executam melhores práticas sociais. Propriedades maiores e produtores agrícolas têm melhores práticas do que produtores médios e pecuaristas. Concluimos que não devemos utilizar apenas a estratégia de comando e controle, mas também criar incentivos positivos para eliminar as restrições financeiras, apoiar a inovação, reduzir a incerteza (política e financeira) e eliminar a lacuna de informação para se difundir com sucesso uma agricultura mais sustentável.
386

Guerras nos mares do sul: a produção de uma monocultura marítima e os processos de resistência / Wars in the South Seas: The Production of a Maritime Monoculture and the Resistance Processes.

Gustavo Goulart Moreira Moura 24 February 2014 (has links)
A pesca no estuário da Lagoa dos Patos é uma atividade em disputa. De um lado, as comunidades de pesca produzem seus territórios de pesca através dos seus respectivos Conhecimentos Ecológicos Tradicionais (CET) que embasam os diferentes modos de usos dos recursos pesqueiros, os sistemas de manejo de recursos pesqueiros tradicionais (MT). A atividade pesqueira no estuário da Lagoa dos Patos é anterior à colonização portuguesa sendo os CETs que embasam os MTs resultado de um hibridismo cultural entre indígenas, afro e luso-descendentes. De outro, o Estado Moderno implementa políticas públicas de manejo de recursos pesqueiros, sobretudo a partir da segunda metade da década de 1970, que resultam na implementação de um sistema de manejo de recursos pesqueiros moderno (MM), característico de um projeto colonial de dominação. Como resultado da implementação do MM, a pesca entra em colapso na primeira metade da década de 1970 e as indústrias pesqueiras decretam falência na década de 1980. Para solucionar a crise no setor pesqueiro, na segunda metade da década de 1990 cria-se o Fórum da Lagoa dos Patos (FLP) onde se formula a atual legislação que regulamenta a pesca no estuário da Lagoa dos Patos, a Instrução Normativa Conjunta de 2004 (INC 2004). A INC 2004 implementa um MM através da imposição de um calendário de pesca que se torna institucionalizado e, por isso, oficializado. O objetivo desta tese é descrever o processo de des-re territorialização das comunidades de pesca do estuário da Lagoa dos Patos gerado pelo Estado Moderno na implementação da INC 2004. Para atingir tal objetivo, foram utilizadas basicamente duas técnicas de pesquisa para coleta de dados do CET, que produz os territórios tradicionais, e dos conhecimentos, verdades e valores mobilizados na formulação da INC 2004: entrevistas e levantamento bibliográfico. A partir dos dados obtidos, foi necessário o desenvolvimento de uma proposta própria que se enquadra na perspectiva integradora de território: território como conhecimento. Segundo esta proposta, território é um espaço epistêmico produzido a partir do espaço. Com a tentativa de implementação da INC 2004, emerge um conflito ambiental territorial na produção de um espaço através do controle do uso de recursos pesqueiros no estuário da Lagoa dos Patos. O Estado Moderno, que exibe caráter colonial, opera estrategicamente sobre o espaço tentando forçar o curso da modernidade às comunidades de pesca na produção de um espaço epistêmico disciplinar. O resultado, se o Estado Moderno fosse bem sucedido em seu projeto de colonialismo cultural, seria um epistemicídio: a eliminação dos multiterritórios operados pelo CET com uma dinâmica multicalendárica em cada uma das comunidades de pesca artesanal do estuário e a sua substituição por um território operado por uma racionalidade ocidental com um ritmo mecânico através da imposição do Calendário Oficializado da INC 2004. As comunidades de pesca, por sua vez, resistem silenciosa e abertamente operando taticamente via CET na produção de espaços de R-existência. Surpreendentemente, em movimentos diagramáticos infinitos, ambos, Estado Moderno e comunidades de pesca, des-re-territorializam um ao outro. / Fishing in the estuary of Patos Lagoon is an activity in dispute. On the one hand, fishing communities produce their fishing territories through their respective Traditional Ecological Knowledge (TEK), which grounds the different use modes of fishery resources, the traditional resource management systems (TM). The fishing activity in Patos Lagoon estuary is prior to the Portuguese colonization and the TEKs which ground TMs are a result of a cultural hybridity among indigenous, African and Portuguese descendants. On the other hand, especially from the second half of the 1970s, the modern State has been implementing policies for fishery management which have led to the establishment of a modern sciencebased resource management (SM), characteristic of a colonial project of domination. As a result, fishery collapsed in the first half of the 1970s and fishing industries filed bankruptcy in the 1980s. To solve the crisis in the fishery sector in the second half of the 1990s, Forum of Patos Lagoon (FLP) was created. It was at the Forum that the 2004 Normative Instruction (INC 2004), the current legislation which regulates fishing in the estuary of Patos Lagoon, was formulated. INC 2004 implements an SM by imposing a fishing calendar that becomes institutionalized and, therefore, officialized. The objective of this thesis is to describe the process of de-reterritorialization in the fishing communities of the estuary of the Patos Lagoon which was generated by the Modern State when it implemented INC 2004. To achieve this goal, data on TEK were obtained through open and semi-structured interviews and ethnoscientific bibliographic review. Data on knowledge, truths and values that support the formulation of INC 2004 were collected through open interviews held with researchers, who played a key role in mobilizing such intellectual resources and through bibliographic research on the four fisheries whose fishing periods are regulated by INC 2004. From the data obtained, it was necessary to develop our own proposal that fits the integrative perspective of territory: territory as knowledge. Under this proposal, the territory is an epistemic space originating from space. With the attempted implementation of INC 2004, an environmental territorial conflict has emerged in the production of space through the control of the use of fishery resources in the Patos Lagoon estuary. The Modern State, in a display of its colonial character, strategically operates upon space by trying to force the course of modernity on the fishing communities in the production of a disciplined epistemic space. The result, if the Modern State were successful in its project of cultural colonialism would be an epistemicide: the elimination of multi-territories operated by TEK with a multicalendaric dynamics in each of the artisanal fishing communities of the estuary and its replacement by a territory operated by Western rationality, with a mechanical rhythm through the imposition of the official calendar of INC 2004. Fishing communities, in turn, resist quietly and openly by operating tactically via TEK in the production of spaces of R-existence. Surprisingly, in diagrammatic infinite movements, both the Modern State and fishing communities de-reterritorialize one another.
387

ASSESSMENT OF ECOSYSTEM SERVICES BASED ON MULTIPLE CRITERIA AND GROUP DECISION MAKING

Segura Maroto, Marina 06 May 2016 (has links)
[EN] The main objectives of this research are the following. First, to analyse the models and methods in Decision Support Systems (DSS) for forest management, taking into account the important features which allow forestry related problems to be categorized. Second, to define strategic criteria for the sustainable management of Mediterranean forests, as well as to elicit and aggregate the stakeholders' preferences. Third, to propose a robust methodology to implement collaborative management focused on ESS and to develop indicators for the main functions of ESS. The methodology is based on a workshop and surveys to elicit the decision makers', experts' and other stakeholders' preferences. Several techniques were then used to aggregate individual judgements and determine social preferences, in particular, Analytic Hierarchy Process (AHP) and Goal Programming (GP). In addition, a PROMETHEE based method has been developed to provide indicators of the ESS, classified into provisioning, maintenance and direct to citizens services. The analysis of DSS for forest management has shown that the best choice of approach to solve a given problem depend on its nature, which can be characterized by the temporal scale, spatial context, spatial scale, number of decision makers or stakeholders, objectives and finally goods and services involved. A decision hierarchy for strategic management of Valencian forests has been developed by involving experts during the design phase. This was later validated in consultation with the stakeholders in a workshop and provides the base from which to obtain the social preferences. The results show greater importance for environmental and social criteria and lesser relevance for economic criteria, valid for both public and private Mediterranean forests. This result is the same regardless of which preference aggregation technique was used and takes into account the preferences of the majority of the stakeholders and also the minority opinions furthest from the consensus. New products and services such as rural tourism, renewable energies, landscape, hydrological regulation and erosion control, biodiversity and climate change mitigation are relevant. This research also proposes a robust methodology to implement collaborative management focused on ESS provided by protected areas and aggregated indicators for their main functions. Decision makers, technical staff and other stakeholders are included in the process from the beginning, by identifying ESS and eliciting preferences using the AHP method. Qualitative and quantitative data are then integrated into a PROMETHEE based method in order to obtain indicators for provisioning, maintenance and direct to citizens services. This methodology, which has been applied in a forest natural park, provides a tool for exploiting available technical and social data in a continuous process, as well as graphical results, which are easy to understand. This approach also overcomes the difficulties found in prioritising management objectives in a multiple criteria context with limited resources and facilitates consensus between all of the people involved. The new indicators define an innovative approach to assessing the ESS from the supply perspective and provide basic information to help establish payment systems for environmental services and compensation for natural disasters. / [ES] Los principales objetivos de esta investigación son los siguientes. En primer lugar, analizar los modelos y los métodos de los sistemas de ayuda a la toma de decisiones para gestión forestal, teniendo en cuenta las características relevantes que permiten clasificar los problemas forestales. En segundo lugar, definir los criterios estratégicos para la gestión forestal sostenible del bosque mediterráneo, así como obtener y agregar las preferencias de los decisores y otras partes interesadas. En tercer lugar, proponer una metodología robusta para implementar una gestión colaborativa centrada en los servicios del ecosistema y desarrollar indicadores para las principales funciones de estos servicios. La metodología se fundamenta en una jornada de trabajo con decisores, expertos y otros grupos de personas interesadas, así como en encuestas a todos ellos. Después se han utilizado varias técnicas para agregar las preferencias individuales y determinar las preferencias de los distintos grupos sociales, en particular el proceso analítico jerárquico y la programación por metas. Adicionalmente, se ha desarrollado un método basado en PROMETHEE que permite obtener indicadores de los servicios del ecosistema, clasificados en servicios de producción, mantenimiento y directos a los ciudadanos. El análisis de los sistemas de ayuda a la toma de decisiones para gestión forestal ha puesto de manifiesto que los mejores enfoques para resolver los problemas forestales dependen de su naturaleza, caracterizada por la escala temporal, el contexto espacial, la escala espacial, el número de decisores o personas interesadas, el número de objetivos y por último los bienes y servicios involucrados. Se ha desarrollado una jerarquía de decisión para la gestión estratégica de los bosques valencianos involucrando a expertos en la fase de diseño. Este modelo fue validado posteriormente por las partes interesadas en una jornada organizada con esta finalidad y ha sido la base para obtener las preferencias sociales. Los resultados ponen de manifiesto la mayor importancia de los criterios medioambientales y sociales y la menor relevancia de los económicos, tanto para el monte mediterráneo público como privado. Este resultado es independiente del método de agregación utilizado y tiene en cuenta tanto las preferencias de la mayoría como de la minoría más alejada del consenso. Son relevantes los nuevos productos y servicios tales como el turismo rural, las energías renovables, el paisaje, la regulación hidrológica y el control de la erosión, la biodiversidad y la mitigación del cambio climático. Esta investigación también propone una metodología robusta para implementar una gestión colaborativa centrada en los servicios del ecosistema que proporcionan las áreas protegidas e indicadores agregados para sus principales funciones. Los responsables de las decisiones, el personal técnico y otras personas interesadas han participado desde el inicio del proceso, identificando los servicios del ecosistema y proporcionado sus preferencias mediante la técnica del proceso analítico jerárquico. Después se integran los datos cualitativos y cuantitativos en un método basado en PROMETHEE con la finalidad de obtener indicadores para los servicios de producción, mantenimiento y directos a los ciudadanos. Esta metodología, que se ha aplicado en un parque natural, facilita la explotación de los datos técnicos y sociales en un proceso continuo y proporciona resultados gráficos muy fáciles de entender. Este enfoque también permite superar las dificultades que surgen al priorizar los objetivos de gestión en un contexto multicriterio con recursos limitados y facilita el consenso entre todas las personas involucradas. Los nuevos indicadores representan un enfoque innovador para la valoración de los servicios del ecosistema desde el punto de vista de la oferta y proporcionan información básica para establecer sistemas de pagos por / [CAT] Els principals objectius d'aquesta recerca són els següents. En primer lloc, analitzar els models i els mètodes dels sistemes d'ajuda a la presa de decisions per a gestió forestal, tenint en compte les característiques rellevants que permeten classificar els problemes forestals. En segon lloc, definir els criteris estratègics per a la gestió forestal sostenible del bosc mediterrani, com també obtenir i agregar les preferències dels decisors i altres parts interessades. En tercer lloc, proposar una metodologia robusta per a implementar una gestió col·laborativa centrada en els serveis de l'ecosistema i desenvolupar indicadors per a les principals funcions d'aquests serveis. La metodologia es fonamenta en una jornada de treball amb decisors, experts i altres grups de persones interessades, i també en enquestes a tots ells. Després s'han utilitzat diverses tècniques per a afegir-hi les preferències individuals i determinar les preferències dels diferents grups socials, en particular el procés analític jeràrquic i la programació per metes. Addicionalment, s'ha desenvolupat un mètode basat en PROMETHEE que permet obtenir indicadors dels serveis de l'ecosistema, classificats en serveis de producció, manteniment i directes als ciutadans. L'anàlisi dels sistemes d'ajuda a la presa de decisions per a la gestió forestal ha posat de manifest que els millors enfocaments per a resoldre els problemes forestals depenen de la naturalesa d'aquests problemes, caracteritzada per l'escala temporal, el context espacial, l'escala espacial, el nombre de decisors o persones interessades, el nombre d'objectius i, finalment, els béns i serveis involucrats. S'ha desenvolupat una jerarquia de decisió per a la gestió estratègica dels boscos valencians involucrant experts en la fase de disseny. Aquest model ha sigut validat posteriorment per les parts interessades en una jornada organitzada amb aquesta finalitat i ha sigut la base per a obtenir les preferències socials. Els resultats posen de manifest la major importància dels criteris mediambientals i socials i la menor rellevància dels econòmics, tant per a la muntanya mediterrània pública com privada. Aquest resultat és independent del mètode d'agregació utilitzat i té en compte tant les preferències de la majoria com de la minoria més allunyada del consens. Són rellevants els nous productes i serveis, com ara el turisme rural, les energies renovables, el paisatge, la regulació hidrològica i el control de l'erosió, la biodiversitat i la mitigació del canvi climàtic. Aquesta recerca també proposa una metodologia robusta per a implementar una gestió col·laborativa centrada en els serveis de l'ecosistema que proporcionen les àrees protegides i indicadors agregats per a les seues funcions principals. Els responsables de les decisions, el personal tècnic i altres persones interessades hi han participat des de l'inici del procés, identificant els serveis de l'ecosistema i proporcionant les seues preferències mitjançant la tècnica del procés analític jeràrquic. Després s'integren les dades qualitatives i quantitatives en un mètode basat en PROMETHEE amb la finalitat d'obtenir indicadors per als serveis de producció, manteniment i directes als ciutadans. Aquesta metodologia, que s'ha aplicat en un parc natural, facilita l'explotació de les dades tècniques i socials en un procés continu i proporciona resultats gràfics molt fàcils d'entendre. Aquest enfocament també permet superar les dificultats que sorgeixen a l'hora de prioritzar els objectius de gestió en un context multicriteri amb recursos limitats i facilita el consens entre totes les persones involucrades. Els nous indicadors representen un enfocament innovador per a la valoració dels serveis de l'ecosistema des del punt de vista de l'oferta i proporcionen informació bàsica per a establir sistemes de pagaments per serveis ambientals i compensacions per desastres naturals. / Segura Maroto, M. (2015). ASSESSMENT OF ECOSYSTEM SERVICES BASED ON MULTIPLE CRITERIA AND GROUP DECISION MAKING [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/57955 / TESIS
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Impact of a Forested State Park on Nutrient Concentrations in an Agriculturally Dominated Watershed in Southwest Ohio

Farthing, Tessa 26 July 2021 (has links)
No description available.
389

Ecological effects and control of woody invasive species in an eastern oak-hickory forest

Block, Jeremy A. January 2021 (has links)
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390

Evaluating AHDriFT Camera Traps and Traditional Survey Methods for Eastern Massasauga Rattlesnake (Sistrurus catenatus) Presence-Absence

Amber, Evan Douglas 05 October 2021 (has links)
No description available.

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