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Registros recuperados: 3
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Transient Social–Ecological Stability: the Effects of Invasive Species and Ecosystem Restoration on Nutrient Management Compromise in Lake Erie Ecology and Society
Roy, Eric D.; Department of Food, Agricultural and Biological Engineering, Ohio State University; eroy5@tigers.lsu.edu; Martin, Jay F.; Department of Food, Agricultural and Biological Engineering, Ohio State University; martin.1130@osu.edu; Irwin, Elena G.; Department of Agricultural, Environmental and Development Economics, Ohio State University; irwin.78@osu.edu; Conroy, Joseph D.; Department of Evolution, Ecology and Organismal Biology, Ohio State University; conroy.27@osu.edu; Culver, David A.; Department of Evolution, Ecology and Organismal Biology, Ohio State University; culver.3@osu.edu.
Together, lake ecosystems and local human activity form complex social–ecological systems (SESs) characterized by feedback loops and discontinuous change. Researchers in diverse fields have suggested that complex systems do not have single stable equilibria in the long term because of inevitable perturbation. During this study, we sought to address the general question of whether or not stable social–ecological equilibria exist in highly stressed and managed lacustrine systems. Using an integrated human–biophysical model, we investigated the impacts of a species invasion and ecosystem restoration on SES equilibrium, defined here as a compromise in phosphorus management among opposing stakeholders, in western Lake Erie. Our...
Tipo: Peer-Reviewed Reports Palavras-chave: Dreissena; Ecosystem services; Invasive species; Lake Erie; Lake eutrophication; Lake management; Perturbation; Phosphorus.
Ano: 2010
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Managing the Resilience of Lakes: A Multi-agent Modeling Approach Ecology and Society
Janssen, Marco A; Indiana University; maajanss@indiana.edu; Carpenter, Stephen R; University of Wisconsin-Madison; srcarpen@wisc.edu.
We demonstrate an approach for integrating social and ecological models to study ecosystem management strategies. We focus on the management of lake eutrophication. A model has been developed in which the dynamics of the lake, the learning dynamics of society, and the interactions between ecology and society are included. Analyses with the model show that active learning is important to retain the resilience of lakes. Although very low levels of phosphorus in the water will not be reached, active learning reduce the chance of catastrophic high phosphorus levels.
Tipo: Peer-Reviewed Reports Palavras-chave: Active learning; Eutrophication; Integrated modeling; Lake dynamics; Lake management; Multi-agent modeling; Phosphorus; Resilience; Restoration; Simulation.
Ano: 1999
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Spatial Complexity, Resilience, and Policy Diversity: Fishing on Lake-rich Landscapes Ecology and Society
Carpenter, Stephen R; University of Wisconsin-Madison; srcarpen@wisc.edu; Brock, William A; University of Wisconsin-Madison; wbrock@ssc.wisc.edu.
The dynamics of and policies governing spatially coupled social-ecological mosaics are considered for the case of fisheries in a lake district. A microeconomic model of households addresses agent decisions at three hierarchic levels: (1) selection of the lake district from among a larger set of alternative places to live or visit, (2) selection of a base location within the lake district, and (3) selection of a portfolio of ecosystem services to use. Ecosystem services are represented by dynamics of fish production subject to multiple stable domains and trophic cascades. Policy calculations show that optimal policies will be highly heterogeneous in space and fluid in time. The diversity of possible outcomes is illustrated by simulations for a hypothetical...
Tipo: Peer-Reviewed Reports Palavras-chave: Angler dynamics; Fish habitat; Inclusive value; Lake; Lake management; Landscape ecology; Multiple attractors; Natural resource policy; Resilience; Social-ecological system; Spatial dynamics; Sport fishery; Sport fishery; Sport fishery management.
Ano: 2004
Registros recuperados: 3
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