Bioeconomic Sustainability and Resilience of Biodiversity under Invasive Species Pressures

Luc Doyen (), Pierre Courtois () and Shadi Atallah
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Luc Doyen: CEE-M - Centre d'Economie de l'Environnement - Montpellier - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement - UM - Université de Montpellier, INSHS-CNRS - Institut des Sciences Humaines et Sociales - CNRS Sciences humaines et sociales
Pierre Courtois: CEE-M - Centre d'Economie de l'Environnement - Montpellier - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement - Institut Agro Montpellier - Institut Agro - Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement - UM - Université de Montpellier
Shadi Atallah: UIUC - University of Illinois at Urbana-Champaign [Urbana] - University of Illinois System

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Abstract: As a major cause of species extinction, invasive species pose a significant threat to biodiversity and ecosystems. In a context of limited resources and mistrust toward environmental measures, the management of invasive species requires compromises between conservation objectives, economic constraints, and the acceptability of the measures taken. In this article, we develop a stylized bioeconomic model of native-invasive species dynamics to analyze management strategies that enable the long-term preservation of native species. Considering a viable control framework, we characterize the conditions under which coexistence of the two species or eradication of the invasive species are sustainable, taking into account budgetary and conservation constraints. We identify a "viable corridor" -a set of states in which native species can be sustainably preserved -and deduce the corresponding viability control efforts. By contrasting the solutions obtained via viability and optimal control frameworks, we highlight how viability principles can lead to more sustainable and resilient outcomes. A numerical application to the case of grey versus red squirrels in the United Kingdom illustrates the policy relevance of our findings.

Keywords: Viable control; Viability kernel; Maximin vs. optimal control; Resilience; Recovery; Grey squirrel invasion; Containment vs. eradication; Bioeconomic modelling; Biodiversity conservation; Invasive species management (search for similar items in EconPapers)
Date: 2025-12-19
Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-05426155v1
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