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Which oak provenances for the 22nd century in Western Europe? Dendroclimatology in common gardens

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBERT, Didier
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorLEBOURGEOIS, François
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorPONTON, Stéphane
hal.structure.identifierConservatoire Génétique des Arbres Forestiers USC 1386 [CGAF]
dc.contributor.authorMUSCH, Brigitte
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDUCOUSSO, Alexis
dc.date.issued2020
dc.identifier.issn1932-6203
dc.description.abstractEnThe current distribution area of the two sympatric oaks Quercus petraea and Q. robur covers most of temperate Western Europe. Depending on their geographic location, populations of these trees are exposed to different climate constraints, to which they are adapted. Comparing the performances of trees from contrasting populations provides the insight into their expected resilience to future climate change required for forest management. In this study, the descendants of 24 Q. petraea and two Q. robur provenances selected from sites throughout Europe were grown for 20 years in three common gardens with contrasting climates. The 2420 sampled trees allowed the assessments of the relationship between radial growth and climate. An analysis of 15-year chronologies of ring widths, with different combinations of climate variables, revealed different response patterns between provenances and between common gardens. As expected, provenances originating from sites with wet summers displayed the strongest responses to summer drought, particularly in the driest common garden. All provenances displayed positive significant relationships between the temperature of the previous winter and radial growth when grown in the common garden experiencing the mildest winter temperatures. Only eastern provenances from continental cold climates also clearly expressed this limitation of growth by cold winter temperatures in the other two common gardens. However, ecological distance, calculated on the basis of differences in climate between the site of origin and the common garden, was not clearly related to the radial growth responses of the provenances. This suggests that the gradient of genetic variability among the selected provenances was not strictly structured according to climate gradients. Based on these results, we provide guidelines for forest managers for the assisted migration of Quercus petraea and Q. robur provenances.
dc.description.sponsorshipDiversité de traits adaptatifs liés à l'utilisation de l'eau chez deux chênes blancs d'Europe tempérée
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enWhich oak provenances for the 22nd century in Western Europe? Dendroclimatology in common gardens
dc.typeArticle de revue
dc.identifier.doi10.1371/journal.pone.0234583
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Bioclimatologie
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
bordeaux.journalPLoS ONE
bordeaux.pagee0234583
bordeaux.volume15
bordeaux.issue6
bordeaux.peerReviewedoui
hal.identifierhal-02870299
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02870299v1
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