Unravelling complex relationships between humans and nature

Grande Carašaie between Yverdon and Yvonand (Photo: Mario Angst, WSL)

Grande Carašaie between Yverdon and Yvonand (Photo: Mario Angst, WSL)

Environmental problems are generally complex, and the ecological processes and actors involved are often closely interlinked. Social-ecological networks make it possible to untangle such complex relationships. In these networks, social and ecological components and the interactions between them are represented as nodes and links.

This approach is being used to study ecosystem governance by political scientist Manuel Fischer and his research group in the Policy Analysis and Environmental Governance cluster of the Environmental Social Sciences department. Fischer explains: "Our aim is, firstly, to provide organisations with information to help them better coordinate their activities. Secondly, this approach enables us to compare various ecosystem governance situations and identify structural determinants of successful governance."

Social-ecological networks in Swiss wetlands governance

In the Wetlands project, the researchers are studying twelve alluvial plains in Switzerland. The new approach adopted involves analysing, not the spatial connectivity of wetlands, but the functional interactions between ecosystem governance topics such as flood protection, recreation, energy production and biodiversity. The multiplicity of actors gives rise to an intricate social-ecological network. Fischer says: "We’re now investigating how such a network needs to be structured to permit good governance of wetlands." Is it beneficial for flood protection if the canton and tourism work together? Does the lack of contact between power plant operator and environmental consultancy prevent effective species conservation? And why do certain actors successfully coordinate their efforts while others do not, even though the areas concerned are interdependent. "We’re eager to see the results," says Fischer. "We currently suspect that, apart from technical reasons, human factors often play a role, such as power struggles, conflicting interests or empathy."

The Eawag team is part of an international scientific group promoting further development of the network approach. In an article entitled "Improving network approaches to the study of complex social-ecological interdependencies" the group presents some unifying research design considerations to facilitate comparison across case studies using a network approach. In addition, the authors propose a typology of causal assumptions, which should permit the development of generalisable theories.

Interplay of actors in wetlands governance
(Figure: Peter Penicka)

Bodin, Í.; Alexander, S. M.; Baggio, J.; Barnes, M. L.; Berardo, R.; Cumming, G. S.; Dee, L. E.; Fischer, A. P.; Fischer, M.; Mancilla Garcia, M.; Guerrero, A. M.; Hileman, J.; Ingold, K.; Matous, P.; Morrison, T. H.; Nohrstedt, D.; Pittman, J.; Robins, G.; Sayles, J. S. (2019) Improving network approaches to the study of complex social-ecological interdependencies, Nature Sustainability, 2(7), 551-559 , doi: 10.1038/s41893-019-0308-0 , Institutional Repository

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