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Robust scaling in ecosystems and the meltdown of patch size distributions before extinction

hal.structure.identifierInstitut des Sciences de l'Evolution de Montpellier [UMR ISEM]
dc.contributor.authorKÉFI, Sonia
hal.structure.identifierCopernicus Institute of Sustainable Development [Utrecht]
dc.contributor.authorRIETKERK, Max
dc.contributor.authorROY, Manojit
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFRANC, Alain
dc.contributor.authorDE RUITER, Peter
dc.contributor.authorPASCUAL, Mercedes
dc.date.issued2011-01
dc.identifier.issn1461-023X
dc.description.abstractEnRobust critical systems are characterized by power laws which occur over a broad range of conditions. Their robust behaviour has been explained by local interactions. While such systems could be widespread in nature, their properties are not well understood. Here, we study three robust critical ecosystem models and a null model that lacks spatial interactions. In all these models, individuals aggregate in patches whose size distributions follow power laws which melt down under increasing external stress. We propose that this power-law decay associated with the connectivity of the system can be used to evaluate the level of stress exerted on the ecosystem. We identify several indicators along the transition to extinction. These indicators give us a relative measure of the distance to extinction, and have therefore potential application to conservation biology, especially for ecosystems with self-organization and critical transitions.
dc.language.isoen
dc.publisherWiley
dc.subjectINDICATORS OF TRANSITIONS
dc.subjectLOCAL INTERACTIONS
dc.subjectLOI DE PUISSANCE
dc.subjectROBUSTE
dc.subjectINDICATEUR DE TRANSITION
dc.subject.enDEVIATIONS FROM POWER LAWS
dc.subject.enPATCH SIZE DISTRIBUTION
dc.subject.enPOWER LAW
dc.subject.enPOWER LAW WITH AN EXPONENTIAL CUTOFF
dc.subject.enROBUST CRITICALITY
dc.subject.enSCALING
dc.subject.enSPATIAL PATTERNS
dc.subject.enTRUNCATED POWER LAW
dc.title.enRobust scaling in ecosystems and the meltdown of patch size distributions before extinction
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1461-0248.2010.01553.x
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalEcology Letters
bordeaux.page29 - 35
bordeaux.volume14
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01938649
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01938649v1
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