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| Registros recuperados: 10 | |
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| Bellanger, Manuel; Speir, Cameron; Blanchard, Fabian; Brooks, Kate; Butler, James R. A.; Crosson, Scott; Fonner, Robert; Gourguet, Sophie; Holland, Daniel S.; Kuikka, Sakari; Le Gallic, Bertrand; Lent, Rebecca; Libecap, Gary D.; Lipton, Douglas W.; Nayak, Prateep Kumar; Reid, David; Scemama, Pierre; Stephenson, Robert; Thébaud, Olivier; Young, Juliette C.. |
| Marine and coastal activities are closely interrelated, and conflicts among different sectors can undermine management and conservation objectives. Governance systems for fisheries, power generation, irrigation, aquaculture, marine biodiversity conservation, and other coastal and maritime activities are typically organized to manage conflicts within sectors, rather than across them. Based on the discussions around eight case studies presented at a workshop held in Brest in June 2019, this paper explores institutional approaches to move beyond managing conflicts within a sector. We primarily focus on cases where the groups and sectors involved are heterogeneous in terms of: the jurisdiction they fall under; their objectives; and the way they value ecosystem... |
| Tipo: Text |
Palavras-chave: Trade-offs; Ecosystem management; Ecosystem services; Cross-sectoral coordination; Marine governance; Multi-jurisdictional conflicts; Institutions; Environmental policy. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76376/77383.pdf |
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| Scemama, Pierre. |
| L’objectif de ce travail est d’identifier les contraintes économiques à prendre en compte pour encourager l’investissement (public et privé) dans la restauration des écosystèmes aquatiques à partir du prisme de l’économie néo-institutionnelle. Au cours de ce travail nous avons mobilisé des matériaux et des méthodes variés qui nous ont permis d’identifier trois types de contraintes : des contraintes de coûts, des contraintes organisationnelles et des contraintes institutionnelles. La réalisation d’un diagnostic collectif et d’un état de l’art sur les actions de restauration à partir de différentes sources nous a permis d’observer la grande diversité des projets d’investissements dans les écosystèmes aquatiques. Nos résultats montrent que ces projets sont... |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00317/42823/42238.pdf |
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| Kermagoret, Charlene; Claudet, Joachim; Derolez, Valerie; Nugues, Maggy M.; Ouisse, Vincent; Quillien, Nolwenn; Baulaz, Yoann; Le Mao, Patrick; Scemama, Pierre; Vaschalde, Diane; Bailly, Denis; Mongruel, Remi. |
| One of the current major scientific challenges to sustain social-ecological systems is to improve our understanding of the spatial and temporal dynamics of the relationships between biodiversity, ecosystem functioning and ecosystem services. Here, we analyse the bundles of ecosystem services supplied by three coastal ecosystems (coastal lagoons, coral reefs and sandy beaches) along a gradient of eutrophication. Based on a state-and-transition model, we analyses the dynamic responses of ecological communities to environmental change and management actions. Although few exceptions are highlighted, increasing eutrophication in the three ecosystem types leads to a degradation of the ecosystem service bundles, particularly for nutrient and pathogen... |
| Tipo: Text |
Palavras-chave: Sandy beaches; Coral reefs; Coastal lagoons; Ecosystem service bundles; Temporal dynamics; Management. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00488/59930/63322.pdf |
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| Scemama, Pierre; Levrel, Harold. |
| This paper investigates the consequences of the organization of actors on the performances of biodiversity restoration projects. It leans on an interdisciplinary framework that uses ecological engineering information to answer an economic issue following the transaction cost economics framework. Applied to four case studies, this analysis allows us to establish a direct link between the organization of restoration projects and their ecological performance and in fine on their reproducibility. In the end we show that projects that are embedded within flexible organizational forms are in phase with ecological engineering principles and are more likely to be replicated. This focus on the organization of actors in restoration projects provides new insights to... |
| Tipo: Text |
Palavras-chave: Biodiversity restoration; Organization; Transaction costs economics; Ecological engineering. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00468/57999/60478.pdf |
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| Mongruel, Remi; Kermagoret, Charlene; Carlier, Antoine; Scemama, Pierre; Le Mao, Patrick; Levain, Alix; Balle-beganton, Johanna; Vaschalde, Diane; Bailly, Denis. |
| Si l’idée que la Nature rend à l’Homme des services indispensables est très ancienne, l’approche par les services écosystémiques a gagné une reconnaissance universelle avec la réalisation du Millenium Ecosystem Assessment au début des années 2000. Dans l’acception contemporaine de cette notion, les évaluations de services écosystémiques doivent avant tout servir à la mise en place de politiques ambitieuses en matière de protection des écosystèmes et de la biodiversité. Ainsi, les objectifs d’Aïchi pour 2020 fixés par la Convention sur la Diversité Biologique prévoient notamment que les valeurs de la biodiversité puissent être intégrées dans les processus de décision. L’Évaluation Française des Écosystèmes et des Services Écosystémiques (EFESE) est un... |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00600/71260/69647.pdf |
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| Scemama, Pierre; Levrel, Harold. |
| At the national level, with a fixed amount of resources available for public investment in the restoration of biodiversity, it is difficult to prioritize alternative restoration projects. One way to do this is to assess the level of ecosystem services delivered by these projects and to compare them with their costs. The challenge is to derive a common unit of measurement for ecosystem services in order to compare projects which are carried out in different institutional contexts having different goals (application of environmental laws, management of natural reserves, etc.). This paper assesses the use of habitat equivalency analysis (HEA) as a tool to evaluate ecosystem services provided by restoration projects developed in different institutional... |
| Tipo: Text |
Palavras-chave: Wetland restoration; Equivalency tool; Ecosystem services; Cost effectiveness. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00311/42256/44230.pdf |
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| Registros recuperados: 10 | |
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