Reevaluation of an adaptive management framework for invasive Grass Carp within Lake Erie
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Le résumé fourni par la source
ABSTRACT Objective Response efforts to control invasive species frequently require making decisions in the face of substantial uncertainty. Adaptive management, which emphasizes learning during the process of managing, can be useful in cases where uncertainty impedes the decision-making process. Here, we describe how technical and institutional learning led to reformulating decision-making elements, known as double-loop learning, and how uncertainty stemming from a lack of knowledge influenced the selection of alternative strategies in an ongoing adaptive management process for invasive Grass Carp Ctenopharyngodon idella in Lake Erie. Methods When response efforts began, little was known about the population dynamics, ecology, and biology of Grass Carp within the lake. The availability of funding for sustained response efforts was also unknown. A network population model was constructed that relied heavily on values and estimates from limited data to project adult Grass Carp abundance in Lake Erie and evaluate the ability of various response strategies to achieve the desired objectives. After this initial assessment, the collection of new information was emphasized as response efforts increased to aid future assessments. With this expanded knowledge and including additional input from stakeholders, we modified the population model, evaluated new response scenarios, refined objectives, and examined the influence of uncertainty (parameter and expert opinion) on Grass Carp response efforts. Results Under uncertainty of population model parameters and expert opinion, the value-of-information analysis revealed that uncertainties in spawning deterrent efficacy, survival, and the underlying stock–recruitment relationship were important and could change the preferred decision. The efficiency of spawning deterrents influenced the preferred decision outcome among alternative strategies, particularly when >80% of fish were allowed to pass and spawn, indicating that a deterrent may not be worth implementing if passing rates are above this threshold. Conclusions We thereby demonstrate the benefits for invasive species management programs of implementing learning and resolving uncertainties within an adaptive management framework to improve decision making.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Reevaluation of an adaptive management framework for invasive Grass Carp within Lake Erie
- Date Crossref
- 06/06/2025
- Éditeur
- Oxford University Press (OUP)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Michigan Department of Natural Resources pays non établi dans la noticeOrganisme public
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Michigan State University Department of Fisheries and Wildlife pays non établi dans la noticeUniversité ou école supérieure
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United States Geological Survey pays non établi dans la noticeOrganisme public
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University of Georgia pays non établi dans la noticeUniversité ou école supérieure
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University of Toledo Department of Environmental Sciences pays non établi dans la noticeUniversité ou école supérieure
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Great Lakes Fishery Commission pays non établi dans la noticeOrganisme public
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Fisheries Division pays non établi dans la noticeInstitution
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Warnell School of Forestry and Natural Resources Georgia Cooperative Fish and Wildlife Research Unit pays non établi dans la noticeUniversité ou école supérieure
Michigan Department of Natural Resources, Department of Fisheries and Wildlife — Michigan State University et United States Geological Survey, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.