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Assisted migration in a warmer and drier climate: less climate buffering capacity, less facilitation and more fires at temperate latitudes?

hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMICHALET, Richard
hal.structure.identifierÉcole Pratique des Hautes Études [EPHE]
hal.structure.identifierDepartment of Plant Sciences (Cambridge, UK)
hal.structure.identifierÉquipe 6 - Paléontologie, Paléoécologie, Paléobiogéographie, Évolution [P3E]
dc.contributor.authorCARCAILLET, Christopher
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDELERUE, Florian
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDOMEC, Jean‐Christophe
hal.structure.identifierEcologie et Dynamique des Systèmes Anthropisés - UMR CNRS 7058 UPJV [EDYSAN]
dc.contributor.authorLENOIR, Jonathan
dc.date.accessioned2024-04-08T11:36:59Z
dc.date.available2024-04-08T11:36:59Z
dc.date.issued2023-12-19
dc.identifier.issn0030-1299
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195005
dc.description.abstractEnAssisted tree migration has been proposed as a conceptual solution to mitigate lags in biotic responses to anthropogenic climate change. The rationale behind this concept is that tree species currently growing under warmer and drier climates will be more resistant and resilient to the new climatic conditions than tree species naturally growing in currently wetter and colder climates. However, we hypothesize that, by being more stress‐tolerant to warmer and drier conditions, translocated species should exhibit different functional attributes, which could induce important ecological and societal costs and overcome the desired benefits of maintaining wood production and other ecosystem services. We used principal component analysis (PCA) to analyze variation in seven traits of 106 tree and tall shrub species from contrasting latitudinal distributions in western North America and Europe to predict the potential functional changes of forest ecosystems due to the translocation of tree species from low to high latitudes. We show that species from both continents differed primarily by their position on the leaf economy spectrum (LES) and their size traits. Even though, in Europe, differences in LES were significantly correlated to species southern latitudinal positions, in both continents differences in size traits were significantly correlated to latitude. These results suggest that assisted migration by translocating more conservative species of shorter stature in currently cooler climates should decrease the buffering capacity of forest canopies, decrease facilitation for understory species, and increase wildfire risks, whose effects have the potential to accelerate climate warming through negative atmospheric feedback processes. As an alternative solution to assisted migration that may accelerate rather than mitigate climate change, we recommend that foresters gradually diversify the vertical structure and layering of the existing forest canopy to maintain a sustainable water cycle and energy balance between the soil, the tree and the atmosphere without increasing the wildfire risk.
dc.language.isoen
dc.publisherNordic Ecological Society
dc.subject.enBuffering capacity
dc.subject.enClimate change
dc.subject.enDisturbance
dc.subject.enDrought stress
dc.subject.enFacilitation
dc.subject.enForest communities
dc.subject.enMicroclimate
dc.subject.enSpecies migration
dc.subject.enTree species traits
dc.subject.enVegetation
dc.title.enAssisted migration in a warmer and drier climate: less climate buffering capacity, less facilitation and more fires at temperate latitudes?
dc.typeArticle de revue
dc.identifier.doi10.1111/oik.10248
dc.subject.halSciences de l'environnement
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
bordeaux.journalOikos
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04485248
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04485248v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Oikos&rft.date=2023-12-19&rft.eissn=0030-1299&rft.issn=0030-1299&rft.au=MICHALET,%20Richard&CARCAILLET,%20Christopher&DELERUE,%20Florian&DOMEC,%20Jean%E2%80%90Christophe&LENOIR,%20Jonathan&rft.genre=article


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