Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where María Máñez Costa is active.

Publication


Featured researches published by María Máñez Costa.


Environmental Conservation | 2010

Allies, not aliens: increasing the role of local communities in marine protected area implementation

Sebastian C. A. Ferse; María Máñez Costa; Kathleen Schwerdtner Máñez; Dedi Supriadi Adhuri; Marion Glaser

Various management approaches have been proposed to address the alarming depletion of marine coastal resources. Prominent among them are community-based management and the establishment of marine protected areas (MPAs). The overall poor performance of MPAs can be traced to a failure to effectively include local communities in the design and implementation of relevant measures. Recent efforts have incorporated aspects of community-based management into a hybrid form of management, which ideally builds upon existing local management practices. A key challenge lies in the development of appropriate frameworks that allow for the successful participation of local communities in management. A review of studies on MPA design and community-based marine resource management and fieldwork observations provides suggestions on how to address current socioeconomic shortcomings in MPA design and implementation, successfully involving local communities in order to provide a better local basis for effective larger MPA networks. A combination of MPA tools as the formal frame and community-based natural resource management as the adaptive core that recognizes local communities as allies, not aliens, is needed to develop successful conservation approaches.


Ecology and Society | 2011

Socioeconomics, policy, or climate change: what is driving vulnerability in southern Portugal?

María Máñez Costa; Eddy J. Moors; Evan D. G. Fraser

Although climate change models project that communities in southern Europe may be exposed to increasing drought in coming years, relatively little is known about how socioeconomic factors will exacerbate or reduce this problem. We assess how socioeconomic and policy changes have affected drought vulnerability in the Alentejo region of southern Portugal, where EU agricultural policy and the construction of a major dam have resulted in a shift from a land-extensive mixed agricultural system to the intensive production of irrigated grapes and olives. Following a dynamic systems approach, we use both published socioeconomic data and stakeholder interviews to present a narrative account of how this transition has increased the region’s vulnerability to drought. To explore the assumptions made in the narrative, and to present different possible future scenarios, we create a dynamic systems model, the results of which suggest that socioeconomic drivers will play a more important role than projected rainfall changes in increasing vulnerability in the future.


Earth’s Future | 2014

Climate change: The necessary, the possible and the desirable Earth League climate statement on the implications for climate policy from the 5th IPCC Assessment

Johan Rockström; Guy P. Brasseur; Brian J. Hoskins; Wolfgang Lucht; John Schellnhuber; P. Kabat; N. Nakicenovic; Peng Gong; Peter Schlosser; María Máñez Costa; April Humble; Nick Eyre; Peter H. Gleick; Rachel James; André F.P. Lucena; Omar Masera; Marcus Moench; Roberto Schaeffer; Sybil P. Seitzinger; Sander van der Leeuw; Bob Ward; Nicholas Stern; James W. Hurrell; Leena Srivastava; Jennifer Morgan; Carlos A. Nobre; Youba Sokona; Roger Cremades; Ellinor Roth; Diana Liverman

The development of human civilisations has occurred at a time of stable climate. This climate stability is now threatened by human activity. The rising global climate risk occurs at a decisive moment for world development. World nations are currently discussing a global development agenda consequent to the Millennium Development Goals (MDGs), which ends in 2015. It is increasingly possible to envisage a world where absolute poverty is largely eradicated within one generation and where ambitious goals on universal access and equal opportunities for dignified lives are adopted. These grand aspirations for a world population approaching or even exceeding nine billion in 2050 is threatened by substantial global environmental risks and by rising inequality. Research shows that development gains, in both rich and poor nations, can be undermined by social, economic and ecological problems caused by human-induced global environmental change. Climate risks, and associated changes in marine and terrestrial ecosystems that regulate the resilience of the climate system, are at the forefront of these global risks. We, as citizens with a strong engagement in Earth system science and socio-ecological dynamics, share the vision of a more equitable and prosperous future for the world, yet we also see threats to this future from shifts in climate and environmental processes. Without collaborative action now, our shared Earth system may not be able to sustainably support a large proportion of humanity in the decades ahead.


Evolutionary Applications | 2017

Transcriptional mechanisms underlying life‐history responses to climate change in the three‐spined stickleback

Sin-Yeon Kim; María Máñez Costa; Anna Esteve-Codina; Alberto Velando

Phenotypic plasticity, the ability of an organism to express different phenotypes depending on the environment, provides an important mechanism by which an animal population can persist under rapid climate change. We experimentally tested both life‐history and transcriptional responses of an ecological model species, the three‐spined stickleback, to warm acclimation at the southern edge of its European range. We explored cross‐environment genetic correlations of key life‐history traits in male sticklebacks exposed to long‐term temperature changes to examine whether the plasticity pattern was variable among genotypes by using a character‐state approach. We also studied gene expression plasticity by analysing both whole‐transcriptome and candidate gene expression in brain and liver. Male sticklebacks that developed under warmer conditions during winter were smaller in size and invested less in nuptial coloration at the beginning of the breeding season, showing similar responses across different genotypes. The lack of genetic variation in life‐history responses may limit any future evolution of the thermal reaction norm in the study population. After long‐term exposure to increased winter temperatures, genes responsible for several metabolic and oxidation–reduction processes were upregulated, and some hormone genes involved in growth and reproduction were downregulated in the brain. In the liver, there was no significantly represented gene ontology by the differentially expressed genes. Since a higher temperature leads to a higher resting metabolic rate, living in warmer environments may incur higher energetic costs for ectotherms to maintain cellular homoeostasis, resulting in negative consequences for life‐history traits. The expression of genes related to metabolism, cellular homoeostasis and regulatory signalling may underlie temperature‐induced changes in life history.


Environmental Research | 2017

Natural Assurance Scheme: A level playing field framework for Green-Grey infrastructure development

Benjamin Denjean; Mónica Altamirano; Nina Graveline; Raffaele Giordano; Peter van der Keur; David Moncoulon; Josh Weinberg; María Máñez Costa; Zdravko Kozinc; Mark Mulligan; Polona Pengal; John Matthews; Nora van Cauwenbergh; Elena López Gunn; David N. Bresch

This paper proposes a conceptual framework to systematize the use of Nature-based solutions (NBS) by integrating their resilience potential into Natural Assurance Scheme (NAS), focusing on insurance value as corner stone for both awareness-raising and valuation. As such one of its core goal is to align research and pilot projects with infrastructure development constraints and priorities. Under NAS, the integrated contribution of natural infrastructure to Disaster Risk Reduction is valued in the context of an identified growing need for climate robust infrastructure. The potential of NAS benefits and trade-off are explored by through the alternative lens of Disaster Resilience Enhancement (DRE). Such a system requires a joint effort of specific knowledge transfer from research groups and stakeholders to potential future NAS developers and investors. We therefore match the knowledge gaps with operational stages of the development of NAS from a project designer perspective. We start by highlighting the key role of the insurance industry in incentivizing and assessing disaster and slow onset resilience enhancement strategies. In parallel we place the public sector as potential kick-starters in DRE initiatives through the existing initiatives and constraints of infrastructure procurement. Under this perspective the paper explores the required alignment of Integrated Water resources planning and Public investment systems. Ultimately this will provide the possibility for both planners and investors to design no regret NBS and mixed Grey-Green infrastructures systems. As resources and constraints are widely different between infrastructure development contexts, the framework does not provide explicit methodological choices but presents current limits of knowledge and know-how. In conclusion the paper underlines the potential of NAS to ease the infrastructure gap in water globally by stressing the advantages of investment in the protection, enhancement and restoration of natural capital as an effective climate change adaptation investment.


Earth’s Future | 2017

Assessing the effectiveness of Multi-Sector Partnerships to manage droughts: The case of the Jucar river basin

María Carmona; María Máñez Costa; Joaquín Andreu; Manuel Pulido-Velazquez; David Haro-Monteagudo; Antonio Lopez-Nicolas; Roger Cremades

South-east Spain is a drought prone area, characterized by climate variability and water scarcity. The Jucar River Basin, located in Eastern Spain, has suffered many historical droughts with significant socio-economic impacts. For nearly a hundred years, the institutional and non-institutional strategies to cope with droughts have been successful through the development of institutions and partnerships for drought management including multiple actors. In this paper, we show how the creation and institutionalisation of Multi-Sector Partnerships (MSPs) has supported the development of an efficient drought management. Furthermore, we analyze the performance of one of the suggested instruments by the partnership related to drought management in the basin. Two methodologies are used for these purposes. On one hand, the Capital Approach Framework to analyze the effectiveness of the governance processes in a particular partnership (Permanent Drought Commission), which aims to highlight the governance strength and weakness of the MSP for enhancing drought management in the Jucar River Basin. Through a dynamic analysis of the changes that the partnership has undergone over time to successfully deal with droughts, its effectiveness on drought management is demonstrated. On the other hand, an econometric approach is used to analyze the economic efficiency of the emergency drought wells as one of the key drought mitigation measures suggested by the Permanent Drought Commission and implemented. The results demonstrate the potential and efficiency of applying drought wells as mitigation measures (significant reduction of economic losses, around 50 M€ during the drought period, 2005–2008).


Behavioral Ecology | 2017

Sex-specific phenotypes and metabolism-related gene expression in juvenile sticklebacks

Alberto Velando; María Máñez Costa; Sin-Yeon Kim

To fully understand the evolution of sexual dimorphism, it is necessary to study how genetic and developmental systems function to generate sex-specific phenotype as well as sex-specific selection. Males and females show different patterns of energy storage and mitochondrial metabolism from early stages of life, and this may underlie sex-specific developmental pathway to shape both juvenile and adult phenotype. Here, we examined sex-specific relationships between juvenile morphology and behavior, and transcriptional profiles of 4 candidate genes related to mitochondrial function in the 3-spined stickleback. This study provides, for the first time to our knowledge, evidence for sex differences in melanin pigmentation and antipredator behavior as well as the expression of mitochondriarelated genes in juvenile sticklebacks. Males were paler and bolder, and overexpressed genes involved in mitochondrial respiration and antioxidant enzymes compared to females. Relationships between phenotypic traits and gene expression were also sex-specific. In general, females showed stronger positive correlations between body size or pigmentation and the expression of genes involved in mitochondrial biogenesis and activity. In both sexes, more fearful individuals overexpressed those genes. Our results suggest that mitochondrial function may either facilitate or constrain sex-specific responses to selection on dimorphic phenotype, possibly generating intralocus sexual conflict on the transcriptional regulation of mito-nuclear genes during ontogeny. This study highlights that mitochondrial regulation plays an important role in the process of phenotypic differentiation between the 2 sexes from early stages of life before apparent sexual dimorphism appears.


Archive | 2005

Direct payments for conservation — the importance of environmental measures in farming systems for bird populations in a fragmented landscape. A case study in Guatemala

María Máñez Costa; Swen C. Renner

The name Guatemala is derived from the Nahuatl guauhtemallan, which means . Guatemala is home to a unique mix of plants and animals. The countrys biological diversity is among the highest in Central America and it ranks among the 25 most plant-rich countries in the world. Increasing conservation efforts in this region are crucial to preserving Guatemalas wealth of ecosystems. As a case study, the region of the Macizo de Coban has been chosen. The area contains one of biodiversitys hotspots, consisting of large areas of cloud forest. Degradation and loss of forest cover is caused mainly by slash-and-burn increased agricultural expansion to grow subsistence crops (e.g., corn and beans), forest clearing for cash crops (e.g., cardamom and coffee), extraction of firewood (the only domestic fuel of rural inhabitants), local demand for construction, illegal logging increasing demand for commercial forest products (particularly of the reserves primary and old-growth forest) and finally, the clearing of forest for cattle grazing. Slash-and-burn is becoming a pushing method that is destroying the most intricate part of the tropical nutrient cycle and continues to degrade and destroy this biologically rich region. Due to the socio-economic conditions and the pressure on resources in the Macizo de Coban, it is almost impossible to conserve forest as a pristine area. Therefore, environmental measures must be implemented to mitigate the loss of biologically diverse forests. Revisions from Ferraro and Kiss (2002), Nasi et al. (2002), Vosti et al. (2002), Chomnitz (1998), Espinoza and Smyle (1999), about incentives for conservation clarify that direct payment to land owners could pay the way out of forest decline. To elucidate the problem at the local level, interdisciplinary data from bird populations and environmental measures in the Macizo de Coban will be used. Based on this data policy recommendations for forest conservation will be made.


Nature Climate Change | 2018

Using the adaptive cycle in climate-risk insurance to design resilient futures

Roger Cremades; Swenja Surminski; María Máñez Costa; Paul Hudson; P. Shrivastava; J. Gascoigne

Assessing the dynamics of resilience could help insurers and governments reduce the costs of climate-risk insurance schemes and secure future insurability in the face of an increase in extreme hydro-meteorological events related to climate change.


Earth’s Future | 2017

How to Shape Climate Risk Policies After the Paris Agreement? The Importance of Perceptions as a Driver for Climate Risk Management

María Máñez Costa; Cheney Shreve; María Carmona

Risk perception research has played an influential role in supporting risk management and risk communication policy. Risk perception studies are popular across a range of disciplines in the social and natural sciences for a wide range of hazard types. Their results have helped to articulate the complex individual, relational, structural, and environmental factors influencing peoples behavior. Connections between individual and collective behaviors and norms impacting global climate change, and consequently, local disaster risk, however, are infrequently included in disaster risk management. This paper presents results from two diverse and complementary European risk perception studies examining both natural and anthropogenic hazards. Research gaps and recommendations for developing more comprehensive risk management strategies are presented.

Collaboration


Dive into the María Máñez Costa's collaboration.

Top Co-Authors

Avatar

Kathleen Schwerdtner Máñez

Leibniz Center for Tropical Marine Ecology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Antonio Lopez-Nicolas

Polytechnic University of Valencia

View shared research outputs
Top Co-Authors

Avatar

Joaquín Andreu

Polytechnic University of Valencia

View shared research outputs
Top Co-Authors

Avatar

Manuel Pulido-Velazquez

Polytechnic University of Valencia

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Sebastian C. A. Ferse

Leibniz Center for Tropical Marine Ecology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Cheney Shreve

Western Washington University

View shared research outputs
Researchain Logo
Decentralizing Knowledge