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| Registros recuperados: 15 | |
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| Blenckner, Thorsten; Stockholm Resilience Centre, Stockholm University; thorsten.blenckner@stockholmresilience.su.se; Kannen, Andreas; Institute for Coastal Research, Human Dimensions in Coastal Areas; Andreas.Kannen@hzg.de; Barausse, Alberto; University of Padova;; Fischer, Christian; Institute for Coastal Research, Human Dimensions in Coastal Areas; Christian.Fischer@hzg.de; Heymans, Johanna J.; Scottish Association for Marine Science, Scottish Marine Institute;; Luisetti, Tiziana; Centre for Social and Economic Research on the Global Environment (CSERGE), School of Environmental Sciences, University of East Anglia;; Todorova, Valentin; Institute of Oceanology, Bulgarian Academy of Sciences;; Valman, Matilda; Stockholm Resilience Centre, Stockholm University;; Mee, Laurence; Scottish Association for Marine Science, Scottish Marine Institute; laurence.mee@sams.ac.uk. |
| Marine environments have undergone large-scale changes in recent decades as a result of multiple anthropogenic pressures, such as overfishing, eutrophication, habitat fragmentation, etc., causing often nonlinear ecosystem responses. At the same time, management institutions lack the appropriate measures to address these abrupt transformations. We focus on existing examples from social–ecological systems of European seas that can be used to inform and advise future management. Examples from the Black Sea and the Baltic Sea on long-term ecosystem changes caused by eutrophication and fisheries, as well as changes in management institutions, illustrate nonlinear dynamics in social–ecological systems. Furthermore, we present two major future... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Ecosystem-based management; Regime shifts; Scenarios. |
| Ano: 2015 |
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| Cork, Steven J; CSIRO Sustainable Ecosystems and Land & Water Australia; stevecork@grapevine.net.au; Peterson, Garry D; Department of Geography & McGill School of the Environment, McGill University; garry.peterson@mcgill.ca; Bennett, Elena M; Center for Limnology, University of Wisconsin, Madison; elena.bennett@mcgill.ca; Zurek, Monika; Food and Agriculture Organization of the United Nations (FAO); monika.zurek@fao.org. |
| This paper outlines the qualitative components (the storylines) of the Millennium Ecosystem Assessment (MA) scenarios. Drawing on a mixture of expert knowledge, experience, and published literature, we have explored plausible consequences of four trajectories for human development. The storylines have been designed to draw out both benefits and risks for ecosystems and human well-being in all four trajectories with enough richness of detail to allow readers to immerse themselves in the world of the scenario. Only a summarized version of the storylines is presented here; readers are encouraged to read the more detailed versions (MA 2005). Together with the quantitative models (Alcamo et al. 2005) the storylines provide a base from which others can consider... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive governance; Economic development; Ecosystem services; Environmental management; Environmental technology; Futures; Poverty reduction; Regime shifts; Resilience; Scenarios; Urbanization. |
| Ano: 2006 |
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| Karunanithi, Arunprakash T; U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH 45268; karunanithi.arunprakash@epa.gov; Cabezas, Heriberto; U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Cincinnati, OH 45268; cabezas.heriberto@epa.gov; Frieden, B. Roy; University of Arizona, Optical Sciences Center, Tucson, AZ 85721; roy.frieden@optics.arizona.edu; Pawlowski, Christopher W.; RD Zande and Associates, Cincinnati, OH 45249; cw_pawlowski@yahoo.com. |
| Ecosystem regime shifts, which are long-term system reorganizations, have profound implications for sustainability. There is a great need for indicators of regime shifts, particularly methods that are applicable to data from real systems. We have developed a form of Fisher information that measures dynamic order in complex systems. Here we propose the use of Fisher information as a means of: (1) detecting dynamic regime shifts in ecosystems, and (2) assessing the quality of the shift in terms of intensity and pervasiveness. Intensity is reflected by the degree of change in dynamic order, as determined by Fisher information, and pervasiveness is a reflection of how many observable variables are affected by the change. We present a new robust methodology to... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Ecosystems; Fisher information; Marine ecosystem; Regime shifts; Resilience; Sustainability.. |
| Ano: 2008 |
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| Kinzig, Ann P; Arizona State University; Ann.Kinzig@asu.edu; Ryan, Paul; CSIRO; paul.ryan@csiro.au; Etienne, Michel; INRA; etienne@avignon.inra.fr; Allison, Helen; Murdoch University; helenallison@ozemail.com.au; Elmqvist, Thomas; University of Stockholm; thomase@ecology.su.se; Walker, Brian H.; CSIRO; Brian.Walker@csiro.au. |
| Most accounts of thresholds between alternate regimes involve a single, dominant shift defined by one, often slowly changing variable in an ecosystem. This paper expands the focus to include similar dynamics in social and economic systems, in which multiple variables may act together in ways that produce interacting regime shifts in social-ecological systems. We use four different regions in the world, each of which contains multiple thresholds, to develop a proposed “general model” of threshold interactions in social-ecological systems. The model identifies patch-scale ecological thresholds, farm- or landscape-scale economic thresholds, and regional-scale sociocultural thresholds. “Cascading thresholds,” i.e., the... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Thresholds; Regime shifts; Social-ecological systems; System interactions; Cascading effects. |
| Ano: 2006 |
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| Schill, Caroline; The Beijer Institute of Ecological Economics, The Royal Swedish Academy of Sciences; Stockholm Resilience Centre, Stockholm University; caroline.schill@beijer.kva.se; Lindahl, Therese; The Beijer Institute of Ecological Economics, The Royal Swedish Academy of Sciences; Stockholm Resilience Centre, Stockholm University; therese.lindahl@beijer.kva.se. |
| Ecosystems can undergo regime shifts that potentially lead to a substantial decrease in the availability of provisioning ecosystem services. Recent research suggests that the frequency and intensity of regime shifts increase with growing anthropogenic pressure, so understanding the underlying social-ecological dynamics is crucial, particularly in contexts where livelihoods depend heavily on local ecosystem services. In such settings, ecosystem services are often derived from common-pool resources. The limited capacity to predict regime shifts is a major challenge for common-pool resource management, as well as for systematic empirical analysis of individual and group behavior, because of the need for extensive preshift and postshift data. Unsurprisingly,... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Common-pool resources; Cooperation; Ecological dynamics; Laboratory experiments; Regime shifts; Risk; Social-ecological systems; Thresholds; Uncertainty. |
| Ano: 2015 |
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| Villanueva, Ching-maria. |
| A comparative study of the Sine-saloum (Senegal) and Gambia (The Gambia) estuaries was performed based on trophic model outputs that describe the system structure and functioning. These trophic models were constructed such as to differentiate main energetic flows in the systems and express how climate change may have impacted ecosystem resilience to change. Estuarine fish assemblages are highly resilient despite exposure to vast hydrodynamic variations and stress. Coupled with strong anthropogenic-driven stresses such as fisheries and climate change, ecosystems may undergo severe regime shifts that may weaken their resilience and stability. Taxonomically related and morphologically similar species do not necessarily play similar ecological roles in these... |
| Tipo: Text |
Palavras-chave: Complex adaptative systems; Climate change; Food web models; Regime shifts; Ecosystem resilience; Trophic ecology. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00249/36034/34571.pdf |
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| Januchowski-hartley, Fraser A.; Graham, Nicholas A. J.; Wilson, Shaun K.; Jennings, Simon; Perry, Chris T.. |
| Climate change is one of the greatest threats to the long-term maintenance of coral-dominated tropical ecosystems, and has received considerable attention over the past two decades. Coral bleaching and associated mortality events, which are predicted to become more frequent and intense, can alter the balance of different elements that are responsible for coral reef growth and maintenance. The geomorphic impacts of coral mass mortality have received relatively little attention, particularly questions concerning temporal recovery of reef carbonate production and the factors that promote resilience of reef growth potential. Here, we track the biological carbonate budgets of inner Seychelles reefs from 1994 to 2014, spanning the 1998 global bleaching event... |
| Tipo: Text |
Palavras-chave: Bioerosion; Coral bleaching; Carbonate production; Parrotfish; Regime shifts; Seychelles. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00374/48539/74803.pdf |
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| Registros recuperados: 15 | |
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