scholarly journals Integrating climate adaptation and biodiversity conservation in the global ocean

2019 ◽  
Vol 5 (11) ◽  
pp. eaay9969 ◽  
Author(s):  
Derek P. Tittensor ◽  
Maria Beger ◽  
Kristina Boerder ◽  
Daniel G. Boyce ◽  
Rachel D. Cavanagh ◽  
...  

The impacts of climate change and the socioecological challenges they present are ubiquitous and increasingly severe. Practical efforts to operationalize climate-responsive design and management in the global network of marine protected areas (MPAs) are required to ensure long-term effectiveness for safeguarding marine biodiversity and ecosystem services. Here, we review progress in integrating climate change adaptation into MPA design and management and provide eight recommendations to expedite this process. Climate-smart management objectives should become the default for all protected areas, and made into an explicit international policy target. Furthermore, incentives to use more dynamic management tools would increase the climate change responsiveness of the MPA network as a whole. Given ongoing negotiations on international conservation targets, now is the ideal time to proactively reform management of the global seascape for the dynamic climate-biodiversity reality.

2015 ◽  
Author(s):  
Tim Deprez ◽  
Magda Vincx ◽  
Adelino V.M. Canario ◽  
Karim Erzini ◽  
Katherine Brownlie

The first Mares Conference on Marine Ecosystems Health and Conservation was a successful event organized by the MARES doctoral programme bringing together over 150 researchers in Olhão, Portugal from November 17th to 21st 2014. The conference was opened by Prof. Dr. Hans-Otto Pörtner, whose keynote address focused on a sectoral analysis by the Intergovernmental Panel on Climate Change Fifth Assessment Report (IPCC AR5) on the impacts of climate change on the world’s oceans. The first session on “Future oceans” was opened with a talk by Dr. Frank Melzner highlighting the problems calcifying invertebrates face in the warmer, more acidic and hypoxic waters. Other presenters dealt with changing global diversity patterns, ocean acidification, and the loss the genetic diversity. The second session on “Natural resources” was opened by Dr. Rainer Froese, who focused on whether or not the oceans can feed humanity. This talk introduced other contributions in the session, dealing with fisheries issues and Marine Protected Areas, as well as problems with proper identifications of species used for economic purposes. “Biodiversity effects” was the scope of the third session opened by a talk on oxygenation and marine biodiversity challenges in the 21st Century by Prof. Lisa Levin. Rapid ocean deoxygenation is a process which is currently less investigated but which has considerable effects on body size, taxonomic composition, habitat heterogeneity, and nutrient cycling. The following presentations focused on other factors having a strong effect on marine biodiversity, ranging from the harvesting of algae to the fragmentation of ecosystems. The fourth session addressed “Biological invasions”. Dr. Gregory Ruiz discussed biological invasions in North American marine ecosystems and the need for constant monitoring, and the use of a dynamic and multi-vector approach. Problems with invasive species in European waters were addressed with examples from the Baltic Sea, the North Sea, and the Mediterranean Sea. The fifth session on “Ocean Noise” was opened by Prof. Peter Tyack with a talk on the effects of anthropogenic sound on marine mammals. Although ocean noise issues are often linked to marine mammals, the effects of sound related to marine constructions on fish behaviour, nicely illustrated that ocean noise is a factor with a much broader impact than expected. The last session of the first Mares Conference dealt with “Habitat loss”. Dr. Michael Beck focused on this topic with his talk on ‘Building Coastal Resilience for Climate Adaptation and Risk Reduction’. Talks in the session ranged from the use of telemetry as a tool to monitor species in changed habitats, to cases dealing with sea level rise related problems in for example salt-marshes. The first Mares Conference offered a broad range of oral and poster presentations, as well as digital presentations. The poster and digital object presentations included over 100 contributions.


Author(s):  
Rod J. Snowdon ◽  
Benjamin Wittkop ◽  
Tsu-Wei Chen ◽  
Andreas Stahl

AbstractMajor global crops in high-yielding, temperate cropping regions are facing increasing threats from the impact of climate change, particularly from drought and heat at critical developmental timepoints during the crop lifecycle. Research to address this concern is frequently focused on attempts to identify exotic genetic diversity showing pronounced stress tolerance or avoidance, to elucidate and introgress the responsible genetic factors or to discover underlying genes as a basis for targeted genetic modification. Although such approaches are occasionally successful in imparting a positive effect on performance in specific stress environments, for example through modulation of root depth, major-gene modifications of plant architecture or function tend to be highly context-dependent. In contrast, long-term genetic gain through conventional breeding has incrementally increased yields of modern crops through accumulation of beneficial, small-effect variants which also confer yield stability via stress adaptation. Here we reflect on retrospective breeding progress in major crops and the impact of long-term, conventional breeding on climate adaptation and yield stability under abiotic stress constraints. Looking forward, we outline how new approaches might complement conventional breeding to maintain and accelerate breeding progress, despite the challenges of climate change, as a prerequisite to sustainable future crop productivity.


2020 ◽  
Vol 12 (18) ◽  
pp. 7814
Author(s):  
Susana Perera-Valderrama ◽  
Sergio Cerdeira-Estrada ◽  
Raúl Martell-Dubois ◽  
Laura Rosique-de la Cruz ◽  
Hansel Caballero-Aragón ◽  
...  

In the Mexican Caribbean, 15 marine protected areas (MPAs) have been established for managing and protecting marine ecosystems. These MPAs receive high anthropogenic pressure from coastal development, tourism, and fishing, all in synergy with climate change. To contribute to the MPAs’ effectiveness, it is necessary to provide a long-term observation system of the condition of marine ecosystems and species. Our study proposes the establishment of a new marine biodiversity monitoring program (MBMP) focusing on three MPAs of the Mexican Caribbean. Five conservation objects (COs) were defined (coral reefs, seagrass beds, mangroves, marine turtles, and sharks-rays) for their ecological relevance and the pressures they are facing. Coral reef, seagrass and mangroves have multiple biological, biogeochemical and physical interactions. Marine turtles are listed as endangered species, and the status of their populations is unknown in the marine area of the MPAs. Elasmobranchs play a key role as top and medium predators, and their populations have been poorly studied. Indicators were proposed for monitoring each CO. As a technological innovation, all information obtained from the MBMP will be uploaded to the Coastal Marine Information and Analysis System (SIMAR), a public, user-friendly and interactive web platform that allows for automatic data management and processing.


2017 ◽  
Vol 32 (4) ◽  
pp. 765-796 ◽  
Author(s):  
Glen Wright ◽  
Julien Rochette

Abstract In recent years, the international community has become increasingly aware of the growing threats to marine biodiversity in areas beyond national jurisdiction (abnj), and international discussions on a new international legally binding are underway. In parallel, some States, through regional organisations, have progressively extended their activities into abnj, particularly through the development of area-based management tools (abmts). In this article, we consider how actors in the Western Indian Ocean (wio) might engage in abnj governance. In particular, we develop some possible scenarios for developing abmts in the wio, including through the development of fisheries closures, the establishment of marine protected areas (mpas), and the adoption of abmts under the auspices of relevant international organisations. We conclude that while the wio is currently not the most advanced region in terms of ongoing efforts to improve the governance of abnj, there are already some positive signals and promising options for the future.


Author(s):  
Raimo Virkkala ◽  
Ari Rajasärkkä ◽  
Juha Pöyry ◽  
Risto Heikkinen ◽  
Saija Kuusela ◽  
...  

2019 ◽  
pp. 498-518
Author(s):  
Veena Srinivasan

Climate change is likely to affect both the short-term variability of water resources through increased frequency and intensity of droughts and floods, and long-term changes in mean renewable water supply. Both models and historical data suggest that temperatures have increased in most parts of India, affecting the hydrologic cycle through decreased Himalayan snowpack, increased evaporation, and evapotranspirative demand by vegetation. In contrast, there are uncertainties about the climate–rainfall relationship. While most climate models predict intensification of the Indian monsoon, past rainfall trends suggest a weakening and a regional redistribution, perhaps due to local factors such as aerosols, land use change, and sea surface temperatures. Translating these uncertain projections to water availability is complicated by sparse hydrologic records and human modifications of catchments. Empirical research suggests that climate change is not the only stressor. As climate and socio-economic futures are interlinked, this requires participatory, adaptive management and mainstreaming of adaptation across agencies.


Author(s):  
Goettsche-Wanli Gabriele

This chapter examines the role of the United Nations and its related institutions for global ocean governance, including those established by the entry into force of the United Nations Convention on the Law of the Sea (UNCLOS). It first considers the main issues that these institutions have addressed, ranging from sustainable fisheries, via ecosystem protection, to marine biodiversity conservation; and more recently, maritime security. It then argues that the impacts of climate change have arguably not been directly addressed by either the global ocean governance regime, as it is currently constituted, nor by the climate change regime, at least until recent developments through the 2015 Paris Agreement relating to adaptation and mitigation measures in direct response to sea-level rise and the effects of ocean acidification. The chapter proceeds by discussing UNCLOS and its related legal instruments, UN Conferences and Summit on sustainable development, and the role played by the UN General Assembly (UNGA) in global ocean governance.


Oryx ◽  
2020 ◽  
Vol 54 (6) ◽  
pp. 803-813
Author(s):  
Bárbara Moraes ◽  
Orly Razgour ◽  
João Pedro Souza-Alves ◽  
Jean P. Boubli ◽  
Bruna Bezerra

AbstractBrazil has a high diversity of primates, but increasing anthropogenic pressures and climate change could influence forest cover in the country and cause future changes in the distribution of primate populations. Here we aim to assess the long-term suitability of habitats for the conservation of three threatened Brazilian primates (Alouatta belzebul, Sapajus flavius and Sapajus libidinosus) through (1) estimating their current and future distributions using species distribution models, (2) evaluating how much of the areas projected to be suitable is represented within protected areas and priority areas for biodiversity conservation, and (3) assessing the extent of remaining forest cover in areas predicted to be suitable for these species. We found that 88% of the suitable areas are outside protected areas and only 24% are located in areas with forest cover. Although not within protected areas, 27% of the climatically suitable areas are considered priority areas for conservation. Future projections, considering a severe climate change scenario, indicate that A. belzebul, S. flavius and S. libidinosus may lose up to 94, 98 and 54% of their suitable range, respectively. The establishment of primate populations and their long-term survival in these areas are at risk. Mitigation actions such as the implementation of new protected areas, forest restoration and reduction of greenhouse gas emissions will be essential for the conservation of Brazilian primates.


2008 ◽  
Vol 23 (2) ◽  
pp. 297-326 ◽  
Author(s):  
Rosemary Rayfuse ◽  
Mark G. Lawrence ◽  
Kristina M. Gjerde

Abstract Geo-engineering and environmental modification techniques are increasingly being proposed as climate change mitigation strategies. Ocean fertilisation has been promoted as a simple solution to the problem of increasing atmospheric CO2 levels. However, neither its environmental safety nor its efficacy has been adequately assessed. This article examines the legality of ocean fertilisation under the law of the sea and concludes that it is subject to regulation under the London Convention and London Protocol as its potential for harm is contrary to the aims of these agreements. Hence, the sale of carbon offsets to fund ocean fertilisation activities should be prohibited unless and until an adequate risk assessment based on independent peer-reviewed science has established that the benefits outweigh the potential for harm, and appropriate regulation is in place to ensure that real, measurable, long-term CO2 sequestration can be independently verified. The initial uncertainties surrounding the appropriate regulatory regime for ocean fertilisation highlight the need for a comprehensive global regime for the prior assessment and on-going monitoring of existing, new and emerging high seas activities and uses to ensure they do not have adverse impacts on marine biodiversity and the marine environment in areas beyond national jurisdiction.


2018 ◽  
Author(s):  
Maryann Watson

In 2015, the Government of Canada committed to protecting 5% of marine and coastal areas by 2017, and 10% by 2020. While admirable progress towards this target has been made, less attention has been given to improving the quality of protection afforded to marine areas. Extensive scientific study supports that several factors are critical to the success of Marine Protected Areas (MPAs) for marine biodiversity conservation and management objectives, including no-take areas and prohibitions on extractive and industrial activities. However, the majority of Canada’s MPAs allow extractive uses within their boundaries. As Canada works toward international and national commitments to marine protection targets, it is critical to consider the degree of protection afforded by the legal designations used to create these areas. This paper reviews the current inconsistent standards of protection across marine protected areas (MPAs) designated under the Oceans Act, Canada’s flagship legislation for marine protection. Recommended amendments to the law include standards of protection that would exclude all extractive industrial activities from MPAs in order to better guide the designation and decision-making processes for marine protection.


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