13 results on '"Esteve Selma, Miguel Ángel"'
Search Results
2. A socio-ecological model of the Segura River basin, Spain
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Zuluaga-Guerra, Paula Andrea, Martinez-Fernandez, Julia, Esteve-Selma, Miguel Angel, and Dell'Angelo, Jampel
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- 2023
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3. Local perceptions regarding a social–ecological system of the mediterranean coast: the Mar Menor (Región de Murcia, Spain)
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Guaita-García, Noelia, Martínez-Fernández, Julia, Barrera-Causil, Carlos Javier, Esteve-Selma, Miguel Ángel, and Fitz, H. Carl
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- 2021
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4. Assessment of management measures for the conservation of traditional irrigated lands: The case of the Huerta of Murcia (Spain)
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Martínez-Paz, José Miguel, Banos-González, Isabel, Martínez-Fernández, Julia, and Esteve-Selma, Miguel Ángel
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- 2019
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5. Validation of the Habitat Quality Index of Tetraclinis articulata Forests and Its Application in Cost-Effectiveness Analysis of Restoration Projects.
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Moya-Pérez, Juan Miguel, Esteve-Selma, Miguel Ángel, Rocamora, Adrián Ruiz, and Carrillo, Antonio Félix
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HABITATS ,FOREST conservation ,HABITAT conservation ,FOREST management ,COST effectiveness - Abstract
The latest reports from the European Commission warn of the need to improve the conservation status of its forest habitats. Native populations of priority habitat 9570 (Tetraclinis articulata forests) in continental Europe are located in the southeast of the Iberian Peninsula. The LIFE-TETRACLINIS-EUROPE project aimed to improve habitat conservation conditions. As part of the results of this project, a habitat quality index was proposed with the intention of evaluating both its conservation conditions and its evolution after the implemented action measures. The variables used in this index were selected with the aim of achieving high representativeness of the quality of the habitat while at the same time being easily integrated into monitoring programs. In this paper, we intend to verify the suitability of the variables chosen for this index, its sensitivity to discriminate different conservation levels, and its possible inclusion in forest management programs through a cost-effectiveness analysis. [ABSTRACT FROM AUTHOR]
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- 2022
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6. Extreme drought reduces climatic disequilibrium in dryland plant communities.
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Pérez‐Navarro, María Á., Serra‐Diaz, Josep M., Svenning, Jens‐Christian, Esteve‐Selma, Miguel Ángel, Hernández‐Bastida, Joaquin, and Lloret, Francisco
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PLANT communities ,DROUGHTS ,CLIMATE change ,SHRUBLANDS ,BIOLOGICAL extinction ,PLANT species ,CLIMATE extremes - Abstract
High rates of climate change are currently exceeding many plant species' capacity to keep up with climate, leading to mismatches between climatic conditions and climatic preferences of the species present in a community. This disequilibrium between climate and community composition could diminish, however, when critical climate thresholds are exceeded, due to population declines or losses among the more mismatched species. Here, we assessed the effect of an extreme drought event on rich semiarid shrubland communities in the south‐eastern Iberian Peninsula. Using a community climate framework, we compared the community climatic disequilibrium before and after the drought episode on three study sites with different levels of precipitation. Disequilibrium was estimated as the difference between observed reference climate and community‐inferred climate, calculated as the mean climatic optimum for the species present, weighted by their abundances. We found that extreme drought embedded within a decadal trend of increasing aridity led to a significant reduction in community climatic disequilibrium, and that this reduction was positively related to water deficit (low P/PET values). In contrast, microhabitat variables such as vegetation cover or slope, did not emerge as significant predictors of changes in community climatic disequilibrium. Our study highlights that extreme drought events pushing communities in the same direction as climate trends may decrease community climatic mismatch, leading to communities more adapted to aridity through loss of drought‐sensitive species. These findings underscore that extreme events will play a crucial role in speeding up climate‐induced community transformations and biodiversity losses. [ABSTRACT FROM AUTHOR]
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- 2021
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7. From trouble to solutions: conservation of Mediterranean tortoises under global change.
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Graciá, Eva, Rodríguez-Caro, Roberto C., Ferrández, Marcos, MartinezSilvestre, Albert, Pérez-Ibarra, Irene, Atnahjour, Rabie, Aranda, Carmen, Benelkadi, Hadj Aissa, Bertolero, Albert, Biaggini, Marta, Botella, Francisco, Budó, Joan, Cadenas, Vanessa, Chergui, Brahim, Corti, Claudia, Esperón, Fernando, Esteve-Selma, Miguel Ángel, Fahd, Soumia, de la Fuente, Ma Isabel García, and Golubovic, Ana
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CAPTIVE wild animals ,TESTUDINIDAE ,WILDFIRE prevention ,FRAGMENTED landscapes ,PET industry ,ENDANGERED species ,BIRD populations - Abstract
Chelonians are among the animal groups with the poorest conservation status. Since tortoises are long-lived species that need very long time to reach sexual maturity, they are extremely vulnerable to human pressure. Despite their endangered status, there are no common strategies for the development of conservation actions. At the "Mediterranean workshop to develop tortoise conservation strategies", scientists, conservation associations, environmental managers, IUCN advisers and CITES inspectors met in October 2019 in Alicante (Spain). The aims were to update the diagnosis of the conservation status of the Hermann's tortoise (Testudo hermanni) and the spur-thighed tortoise (Testudo graeca) and to suggest strategies that guarantee their preservation at the Mediterranean Region. The main conclusions are summarized by: i) Mediterranean tortoises are wild endangered species that must be protected in, and together with, their natural habitat. Their main threats are habitat loss and fragmentation and pet trade, but we should also pay attention to wildfires, spread of diseases, the introduction of exotic species or lineages and climate change. ii) Long-term efforts and stablished protocols are needed to accurately diagnose and monitor the conservation status of wild populations, as well as flows among captive and wild animals. iii) Tortoise trade should be banned because it threatens the conservation of wild populations of tortoises. Illegal practices related to tortoises should be decidedly persecuted. People should consider tortoises as wild animals that are endangered and deserving of protection. It is possible to enjoy them by responsibly observing them in their habitat. iv) Tortoises may carry pathogens or parasites and their sanitary status cannot be fully assessed. They should always be considered potential vectors of tortoise pathogens and of zoonotic agents. Hygiene protocols should be implemented when managing them. v) The researchers attending this workshop aimed to develop a scientific network for the longterm monitoring of T. graeca and T. hermanni populations in the Mediterranean Region. They will need the support from public administrations. [ABSTRACT FROM AUTHOR]
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- 2020
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8. Dynamic simulation of socio-ecological systems: sustainability in Biosphere Reserves
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Baños González, Isabel, Martínez Fernández, Julia, and Esteve Selma, Miguel Ángel
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Dynamic models ,lcsh:GE1-350 ,Indicadores ,Socio-ecological systems ,Sistemas socio-ecológicos ,Indicators ,Modelos dinámicos ,Insular systems ,Ecología ,Sistemas insulares ,lcsh:Environmental sciences - Abstract
La aplicación de una perspectiva sistémica en la gestión de las Reservas de la Biosfera es importante a la hora de abordar la estrecha relación entre los procesos ambientales y socioeconómicos, así como los potenciales factores limitantes, particularmente evidentes en el caso de sistemas insulares áridos como la Reserva de la Biosfera de Fuerteventura (RBF), Islas Canarias. El desarrollo turístico de la isla ha favorecido la ocupación del territorio por usos antropogénicos, lo que está incrementando la vulnerabilidad del sistema hacia procesos como el sobrepastoreo y la degradación de hábitats naturales que albergan numerosas especies amenazadas. Con el objetivo de elaborar una herramienta que contribuya a un desarrollo más equilibrado y multifuncional de las reservas de la biosfera insulares, se ha desarrollado un modelo dinámico para la RBF, estructurado en 5 sectores: usos del territorio, conservación de la biodiversidad, recursos hídricos, calidad ambiental y socioturístico. El modelo, calibrado con datos del periodo 1996-2011, integra un conjunto de 30 indicadores de sostenibilidad con el fin de evaluar su evolución e interacciones en la RBF a lo largo del tiempo. Los resultados de la comparación de los valores observados con los simulados, así como de las pruebas de verificación aplicadas, señalan que el modelo es capaz de reproducir el comportamiento de este sistema socio-ecológico. Esta herramienta permite realizar un análisis de los cambios recientes y los conflictos entre los principales factores e indicadores, y así convertirse en una herramienta para favorecer una gestión orientada a minimizar esos conflictos y a reforzar políticas de desarrollo sostenible en la Reserva. The application of a systemic perspective on the management of Biosphere Reserves is important to address the close relationships between the environmental and socio-economic processes and to take into account potential limiting factors, particularly evident in the case of insular arid systems as the Fuerteventura Biosphere Reserve (FBR), (Canary Islands). The tourist development on the island is leading to increasing land dedicated to anthropogenic uses, which is emphasizing the vulnerability of this system to other processes such as overgrazing and degradation of natural habitats that host numerous endangered species. In order to elaborate a tool which contributes to a more balanced and multifunctional development of the insular biosphere reserves, a dynamic model for FBR has been developed, structured in 5 model sectors: land use, biodiversity conservation, water resources, environmental quality and socio-touristic. The model, calibrated with data of the 1996–2011 period, integrates a set of 30 sustainability indicators to monitor their changes and interactions in the FBR over time. Results regarding comparison between observed and simulated values and the verification tests applied showed that the model is able to match the behaviour of this socio-ecological system. This decision-support tool allows analyzing the recent changes and trade-offs between the main environmental factors and indicators, thereby facilitating a management aimed to minimize those trade-offs and reinforce sustainable development policies in the Reserve. Este trabajo se ha desarrollado en parte dentro del proyecto: “Herramienta avanzada para la gestión sostenible y el desarrollo de un sistema de información y participación en las Reservas de la Biosfera” financiado por el Ministerio de Industria, Turismo y Comercio, dentro del Subprograma: Avanza Competitividad I+D+i 2010-2012. Ha contado igualmente con el apoyo del proyecto “IDIGEO: Plataforma para la Investigación y Desarrollo de Sistemas de Información Geomática”, MICINN, Convocatoria ACTEPARQ 2009.
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- 2013
9. ANALYSIS OF THE PROPOSALS OF THE SOCIAL ACTORS IN THE ENVIRONMENTAL RECOVERY OF THE PORTMÁN BAY (REGIÓN DE MURCIA). NEW PERSPECTIVES FOR SUSTAINABLE DEVELOPMENT.
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Banos-González, Isabel, Páez, Pedro Baños, Pérez-Cutillas, Pedro, and Esteve Selma, Miguel Ángel
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SUSTAINABLE development ,ENVIRONMENTAL disasters ,MINE waste - Published
- 2017
10. Enhancing the Resilience of a Mediterranean Forest to Extreme Frought Events and Climate Change: Pinus — Tetraclinis Forests in Europe.
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Moya-Pérez, Juan Miguel, Carreño, María Francisca, and Esteve-Selma, Miguel Ángel
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FOREST resilience ,CLIMATE change ,OPTICAL radar ,LIDAR ,ALEPPO pine ,PINACEAE - Abstract
The southeast Iberian Peninsula is the only place in the European Community where Tetraclinis articulata (Vahl) Masters populations are native. In this area, the optimal ecological niche for this species is occupied by Pinus halepensis (Miller). The increasing intensity of extreme drought events induced by climate change causes severe declines in pine forests, while providing expansion opportunities for established Tetraclinis populations. Within the framework of the LIFE-TETRACLINIS project, a study has been designed to simulate the pine forest decline effects on the population dynamics of this protected species. This work investigates the effects of decreasing competition on T. articulata specimens with limited reproductive activity. To induce the reproductive activity of these specimens through increasing the availability of light, the surrounding pines were removed within a 15 m radius. Increased light availability was modelled using "Light Detection And Ranging" (LiDAR) data, and changes in the main reproductive parameters were registered throughout the study period. A significant increase in the reproductive population was achieved, as well as the cones produced per specimen and the recruitment. Findings obtained are promising for the habitat management in continental Europe and enhancing this forest system's resilience to extreme drought events and climate change. [ABSTRACT FROM AUTHOR]
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- 2021
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11. Dynamic integration of sustainability indicators in insular socio-ecological systems.
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Banos-González, Isabel, Martínez-Fernández, Julia, and Esteve-Selma, Miguel Ángel
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ECOSYSTEMS , *SUSTAINABLE development , *ENVIRONMENTAL indicators , *ECOLOGICAL economics , *ENVIRONMENTAL impact analysis - Abstract
The sustainability assessment on socio-ecological systems requires a systemic perspective in order to address the close relationships between the environmental and socio-economic processes. This need is especially urgent in the case of arid insular systems where limiting factors, as land and water resources, are more evident. The hyperarid island of Fuerteventura (The Canary Islands, Spain) represents a challenging case due to the need for compatibilizing the rising tourist development with the sustainable management of its natural resources, highly vulnerable due to processes such as the degradation of natural habitats – which hosts endemic and endangered species – or the high dependence of allocthonous energy sources for basic processes, including water supply. In this work we present an integral dynamic model, the Fuerteventura sustainability model (FSM), tested and calibrated for 1996–2011 period. The FSM allows to understand the main components of this socio-ecological system and their changes along time, as well as the interaction between the included sustainability indicators and other factors within the system. Results have shown the existence of potential trade-offs not only between socioeconomic development and conservation options, but also between sustainability goals under different management options. The conservation of the Houbara habitat might require the elimination of traditional agro-systems restoration plans, although these agro-systems offer important environmental functions. Besides, a reduction of cattle herd in order to control the degradation of high quality vegetation might negatively affect the endangered population of scavengers on the island. The water–energy binomial offers another trade-off regarding sustainable development, due to the strong dependency of the water availability on energy consumption. In this sense, the FSM has shown to be a useful tool to improve the comprehensive diagnosis of the system and to identify trade-offs between sustainability indicators to orientate management policies for this insular socio-ecological system. [ABSTRACT FROM AUTHOR]
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- 2015
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12. An integral approach to address socio-ecological systems sustainability and their uncertainties.
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Martínez-Fernández, Julia, Banos-González, Isabel, and Esteve-Selma, Miguel Ángel
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The analysis of the sustainability should be addressed with a holistic approach that facilitates an integral analysis of the social, economic, institutional and environmental factors and their interactions characterizing complex socio-ecological systems (SES). Nevertheless, despite the increasing acknowledgment about the need for such systemic approaches, their application in real SES are less frequent than desirable. Among the difficulties behind this, the need for a new conceptual perspective concerning the relationships between science and the management of real SES, as well as the lack of tools to manage the inherent complexity of such systems should be emphasized. In this work, we further discuss these difficulties and propose an integral methodological framework for the assessment of SES sustainability, with the following key components: i) The hierarchical definition of sustainability goals and indicators. ii) A dynamic system model taking into account the key socio-economic and environmental factors and their interactions, in which the most representative indicators and their sustainability thresholds are integrated. iii) The analysis of vulnerabilities to exogenous drivers (scenario analysis) and the exploration of available management and planning options (policy assessment). iv) An uncertainty assessment concerning system behavior and model outcomes to guide decisions for an improved sustainability in complex SES. The whole framework highlights the need to integrate a participative approach, above all at the initial and final steps. In this work, these components are exemplified by means of their application to a real socio-ecological system: Fuerteventura island (The Canary Islands, Spain). Unlabelled Image • An integral methodological framework for sustainability assessment is proposed. • Indicators integrated into a dynamic model allow scenarios and policies assessment. • These components are applied to a real socioecological system: Fuerteventura island. • Some indicators exceed their thresholds under the scenarios and policies analyzed. • Sustainability assessment without considering uncertainty leads to risky decisions. [ABSTRACT FROM AUTHOR]
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- 2021
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13. Dynamic integration of sustainability indicators in the socio-ecological model of the Fuerteventura biosphere reserve = Integración dinámica de indicadores de sostenibilidad en el modelo socio-ecológico de la reserva de la biosfera de Fuerteventura
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Baños González, Isabel Beatriz, Facultad de Biología, Esteve Selma, Miguel Ángel, Martínez Fernández, Julia, Esteve Selma, Miguel Angel, Martinez Fernandez, Maria Julia, and Universidad de Murcia. Departamento de Biología Celular
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Ciencias ,502 - Naturaleza. Estudio, conservación y protección de la naturaleza ,Reservas naturales ,Espacios naturales protegidos ,Biodiversidad ,Desarrollo sostenible - Abstract
Como contribución a la evaluación de la sostenibilidad de los sistemas socioecológicos (SES) insulares, se ha desarrollado un modelo dinámico para la sostenibilidad de la Reserva de la Biosfera de Fuerteventura (FSM) bajo el enfoque de los sistemas dinámicos. El FSM, calibrado para el periodo 1996-2011, superó los tests de bondad de ajuste para las 20 variables con datos observados disponibles, y otros procesos de validación, lo que apoya la utilidad del modelo como herramienta para el análisis de la sostenibilidad en los SES. El FSM, estructurado en 5 sectores (socio-turístico, usos del suelo, biodiversidad, calidad ambiental y recursos hídricos), permitió la integración de 37 indicadores de sostenibilidad, facilitando el análisis de las interacciones entre variables clave e indicadores. Los resultados permiten cuantificar contradicciones potenciales, que podrían pasar desapercibidas usando indicadores estáticos. El FSM se ha aplicado a la evaluación del Plan de Acción de la Reserva de la Biosfera de Fuerteventura, en relación a ciertos objetivos de sostenibilidad, indicadores y medidas de gestión. Se ha analizado el comportamiento de 10 indicadores y sus umbrales bajo 8 medidas para el periodo 2012-2025. Los resultados muestran que todas las medidas excederían sistemáticamente los umbrales de 4 indicadores. Por tanto, esas medidas serían insuficientes para abordar algunos objetivos clave relacionados con el paisaje y la energía. Los resultados de la simulación permiten priorizar entre esas medidas usando los 6 indicadores restantes. Siguiendo la norma “Umbral superado, medida desechada”, solo una de las opciones, la producción de forraje rehabilitando gavias abandonadas para alimentar al ganado, no superaría ninguno de estos seis umbrales y podría asignársele la prioridad más alta. Sin embargo, esta medida presentaría ciertos efectos negativos sobre otros indicadores, por lo que se requeriría algunas medidas compensatorias. Se ha demostrado la utilidad del análisis de sensibilidad (AS) como herramienta en el desarrollo y aplicación de modelos socioecológicos. El AS permitió: i) La mejora de la formulación del modelo aplicando AS local. Se eliminaron 8 parámetros insensibles, haciendo el modelo más compacto. ii) Una evaluación detallada de la robustez del modelo. La simulación Monte Carlo mostró una respuesta de baja a moderada para 16 de las 18 variables clave del modelo, lo que respalda la confianza en sus resultados. iii) La identificación de los parámetros más reactivos. Los resultados muestran el potencial de estos parámetros para desarrollar medidas más efectivas que otras propuestas por diferentes actores para un mismo objetivo, como la reducción de la degradación de la vegetación de alta calidad, y el control del desarrollo urbano-turístico. iv) La incorporación explícita de la incertidumbre a la evaluación de políticas y escenarios económicos y de cambio climático. Las conclusiones sobre si ciertos umbrales podrían ser excedidos podrían variar al tener en cuenta la incertidumbre. Por tanto, el riesgo potencial de que algún umbral de sostenibilidad pudiera superarse bajo las medidas analizadas podría pasar desapercibido si la incertidumbre no se considerase, aumentando la vulnerabilidad del sistema. Como ejemplo de aplicación del FSM a un sector específico, se ha abordado la dinámica del hábitat potencial de la hubara. Los resultados de la simulación son consistentes con las estimaciones disponibles para los años 1996, 2002 y 2011, con una pérdida alrededor del 13% entre 1996-2011. El escenario tendencial (BAU) supondría una pérdida entorno al 20% del hábitat entre 2012-2025. Esta pérdida sería alrededor de un 13% mayor y un 12% menor que BAU, bajo los escenarios de crecimiento y recesión económica, respectivamente. Además, el uso del modelo permitió la identificación de contradicciones entre medidas de conservación del hábitat de la hubara y otras políticas ambientales, como la de rehabilitación de gavias., As a contribution to the sustainability assessment of insular socio-ecological systems (SES), a dynamic model of the sustainability of Fuerteventura Biosphere Reserve (FSM) has been developed under the system dynamics approach. The FSM, calibrated for the 1996-2011 period, was satisfactorily tested regarding goodness of fit for 20 variables with available observed data series. This and other testing procedures support the usefulness of the model as a tool to understand this SES and analyse its sustainability. The FSM, structured in five sectors (socio-tourist, land uses, flagship species, environmental quality and water resources), enabled the integration of 37 sustainability indicators, which facilitates an integral analysis of the interactions between key variables and indicators. Moreover, the results allowed to quantify potential trade-offs which may often go unnoticed using static indicators. The FSM was applied to assess the Fuerteventura Biosphere Reserve Action Plan, regarding proposed environmental sustainability goals, indicators and policy measures. The behaviour of ten indicators, whose sustainability thresholds were set out, was analysed under eight measures for the 2012-2025 period. The results showed that all these policy measures would systematically exceed the sustainability thresholds of four indicators. It may be concluded that these policy measures are insufficient to address some key goals related to landscape and energy issues. Simulation results allowed to prioritise among these measures using the remaining six indicators and their sustainability thresholds. Following the rule “Threshold out, measure out”, only 1 out of these measures, aimed at cropping fodder on restored traditional agro-landscapes to feed cattle, would not see any of these thresholds exceeded. Thus, it might be assigned the highest priority. Nevertheless, this option would present certain trade-offs regarding other indicators, which would require some compensation measures. The sensitivity analysis (SA) has revealed as a powerful tool in all stages of model development and application of SES models. The SA allowed: i) The improvement of the model formulation with the One factor At Time technique. Eight no sensitive parameters were removed, making the model more compact and parsimonious. ii) A detailed assessment of robustness. The Monte Carlo simulations showed a low to moderate response for 16 out of the 18 target model variables to changes in parameters values, which support enough confidence on model outcomes. iii) The identification of the most responsive parameters (leverage points). Results point to the potential of using these leverage points to develop more effective measures as compared with other measures with the same objective proposed by different agents, regarding the objective of reducing grazing in the high quality natural vegetation and the objective of controlling the tourist accommodations growth. vi) The explicit consideration of the uncertainty in the assessment of policies and scenarios, as socio-economic and climate change. Conclusions regarding whether certain sustainability thresholds might be exceeded may change when uncertainty is taken into account. Therefore, the potential risks related to the overcome of sustainability thresholds may go unnoticed without considering the uncertainty, increasing the vulnerability of the system. As an example of a FSM application for an in-depth understanding of specific sectors, the dynamics of the houbara potential habitat has been addressed. Simulation results are consistent with the available estimations for years 1996, 2002 and 2011, showing a loss around 13% along the 1996-2011 period. The BAU scenario would give rise to almost 20% of habitat loss between 2012-2025, whereas the loss would be around 13% higher and 12% lower than BAU for the economic growth and recession scenarios, respectively. Moreover, the use of the model has allowed to identify trade-offs between the conservation of the houbara habitat and other environmental policies, as traditional farming system restoration.
- Published
- 2016
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