A framework to quantify the vulnerability of insular biota to global change
2025
Bellard, Céline | Marino, Clara | Butt, Nathalie | Fernández-Palacios, José María | Rigal, François | Robuchon, Marine | Lenoir, Jonathan | Irl, Severin | Benítez-López, Ana | Capdevila, Pol | Zhu, G. | Caetano, Gabriel | Denelle, Pierre | Philippe-Lesaffre, Martin | Schipper, Aafke, M | Foden, Wendy | Kissling, W. Daniel | Leclerc, Camille | Ecologie Systématique et Evolution (ESE) ; AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) | The University of Queensland (UQ [All campuses : Brisbane, Dutton Park Gatton, Herston, St Lucia and other locations]) | Universidad de La Laguna [Tenerife - SP] (ULL) | Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) ; Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) | European Commission - Joint Research Centre [Ispra] (JRC) | Ecologie et Dynamique des Systèmes Anthropisés - UMR CNRS 7058 UPJV (EDYSAN) ; Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS) | Goethe University Frankfurt | Museo Nacional de Ciencias Naturales [Madrid] (MNCN) ; Consejo Superior de Investigaciones Cientificas [España] = Spanish National Research Council [Spain] (CSIC) | Universitat de Barcelona (UB) | Washington State University (WSU) | Georg-August-University of Göttingen = Georg-August-Universität Göttingen | Radboud University [Nijmegen] | Cape Research Centre, South African National Parks, 643 Leyds St, Muckleneuk, Pretoria, South Africa | University of Amsterdam [Amsterdam] = Universiteit van Amsterdam (UvA) | Risques, Ecosystèmes, Vulnérabilité, Environnement, Résilience (RECOVER) ; Aix Marseille Université (AMU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | RIVAGE CESAB
The majority of vulnerability assessments of biodiversity to global changes have so far been applied to, and designed for, mainland systems, overlooking islands. However, islands harbour unique biodiversity and are epicentres of ongoing extinctions. We thus introduce a specific framework for quantifying the vulnerability of terrestrial insular biota to multiple threats. This framework uses markers of exposure, sensitivity, and adaptive capacity to account for the unique characteristics of island biodiversity. Our assessment framework involves five steps: (1) defining the scope of the vulnerability assessment, (2) selecting the most appropriate markers, (3) computing the vulnerability metric, (4) evaluating uncertainties, and (5) providing recommendations for conservation. The development of this vulnerability framework tailored for island systems is part of a larger initiative to meet international policy targets that better integrate biodiversity threats and dimensions. We thus discuss the need and urgency for applying this framework to guide evidence-based decisions for the conservation of insular biodiversity, and for increased attention to insular biota at the science-policy interface.
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