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Living on the edge – physiological tolerance to frost and drought explains range limits of 35 European tree species

hal.structure.identifierLaboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
dc.contributor.authorBARANGER, Anne
hal.structure.identifierRecherche, développement et innovation [ONF-RDI]
hal.structure.identifierLaboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
dc.contributor.authorCORDONNIER, Thomas
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
dc.contributor.authorCHARRIER, Guillaume
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant [PIAF]
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLARTER, Maximilian
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorMARTIN-STPAUL, Nicolas
hal.structure.identifierLaboratoire des EcoSystèmes et des Sociétés en Montagne [UR LESSEM]
dc.contributor.authorKUNSTLER, Georges
dc.date.issued2024-12-03
dc.description.abstractEnSpecies distribution models are key to evaluate how climate change threatens European forests and tree species distributions. However, current models struggle to integrate ecophysiological processes. Mechanistic models are complex and have high parameter requirements. Some correlative species distribution models have tried to include traits but so far have struggled to directly connect to ecophysiological processes. Here, we propose a new strategy in which species distributions are based on safety margins which represent species' proximity to their physiological thresholds. We derived frost and drought safety margins for 38 European tree species as the difference between physiological tolerance traits and local maximum stress. We used LT 50 and Ψ 50 as tolerance traits for frost and drought, respectively, and local minimum temperature and minimum soil water potential as maximum stress. We integrated these safety margins into a species distribution model, which tests if the probability of species presence declines rapidly when the safety margin reaches zero, when physiological stress exceeds the species' tolerance traits. Our results showed thaet 35 of the 38 studied species had their distribution explained by one or both safety margins. We demonstrated that safety‐margins‐based model can be efficiently transferred to species for which occurrence data are not available. The probability of presence dropped dramatically when the frost safety margin reached zero, whereas it was less sensitive to the drought safety margin. This differential sensitivity may be due to the more complex regulation of drought stress, especially as water is a shared resource, whereas frost is not. Our analysis provides a new approach to link species distributions to their physiological limits and shows that, in Europe, frost and drought safety margins are important determinants of species distributions.
dc.description.sponsorshipRéponse fonctionnelle et démographique des arbres aux stress climatiques et à la compétition pour évaluer la vulnérabilité des forêts aux changements climatiques - ANR-20-CE32-0005
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enLT50
dc.subject.enminimum soil water potential
dc.subject.enminimum temperature
dc.subject.enP50
dc.subject.enphysiological limits
dc.subject.ensafety margins
dc.subject.enspecies distribution
dc.subject.entolerance traits
dc.title.enLiving on the edge – physiological tolerance to frost and drought explains range limits of 35 European tree species
dc.typeArticle de revue
dc.identifier.doi10.1111/ecog.07528
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
dc.description.sponsorshipEuropeH2020 101000574
bordeaux.journalEcography
bordeaux.issuee07528
bordeaux.peerReviewedoui
hal.identifierhal-04843606
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04843606v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecography&rft.date=2024-12-03&rft.issue=e07528&rft.au=BARANGER,%20Anne&CORDONNIER,%20Thomas&CHARRIER,%20Guillaume&DELZON,%20Sylvain&LARTER,%20Maximilian&rft.genre=article


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