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Recruitment of a genotyped Quercus robur L. seedling cohort in an expanding oak forest stand: diversity, dispersal, and performance across habitats

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGERZABEK, Gabriel
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorODDOU-MURATORIO, Sylvie
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorHAMPE, Arndt
dc.date.issued2020-08-10
dc.identifier.issn1286-4560
dc.description.abstractEnKey message: Few studies have linked the origin of dispersed tree seeds with their post-dispersal fate. We show that habitat-dependent mortality in a pedunculate oak (Quercus roburL.) seedling cohort reshapes the effective fecundity of individual mother trees but has little effect on the cohort's genetic diversity. Context : Initial tree recruitment plays a key role in forest regeneration, yet little is known on how patterns of recruit mortality feed back on the fecundity of reproducing trees. Aims : To investigate how among-habitat variation in seedling arrival and survival alters initial patterns of genetic diversity and maternal reproductive success. Methods : We genotyped a pedunculate oak seedling cohort (n = 809) and monitored it over 3 years. The mother trees of 81% of the seedlings were identified through parentage analysis. Seedlings were assigned to one of three habitats (broadleaved forest, pine plantation, or open area). Results : Broadleaved forest received most seedlings (approximate to 65%) but their survival was reduced by a third compared with pine plantations or open areas. Thus, mother trees dispersing many descendants to broadleaved forest suffered a disproportionate reduction of their reproductive success. Genetic diversity did not vary among habitats, nor over the monitoring period. Conclusion : The quality of seed dispersal, in terms of delivery sites, can considerably influence the reproductive success of individual mother trees without affecting the overall genetic diversity of the recruits.
dc.description.sponsorshipPATRONS SPATIO-TEMPORELS DE COLONISATION DANS UNE POPULATION D'ARBRES EN EXPANSION: une approche integrant génétique et génomique - ANR-13-ISV7-0003
dc.description.sponsorshipScénarios pour la dynamique de la biodiversité des forêts européennes sous changement global identifier les points de basculement micro-evolutifs - ANR-12-EBID-0003
dc.description.sponsorshipUnraveling the potential of SPONtaneous FORest ESTablishment for improving ecosystem functions and services in dynamic landscapes - ANR-16-EBI3-0011
dc.language.isoen
dc.publisherSpringer Nature (since 2011)/EDP Science (until 2010)
dc.subject.enGenetic diversity
dc.subject.enQuercus robur L
dc.subject.enReproductive success
dc.subject.enSeed dispersal
dc.subject.enSeedling
dc.subject.enRecruitment
dc.title.enRecruitment of a genotyped Quercus robur L. seedling cohort in an expanding oak forest stand: diversity, dispersal, and performance across habitats
dc.typeArticle de revue
dc.identifier.doi10.1007/s13595-020-00979-5
dc.subject.halSciences de l'environnement
dc.description.sponsorshipEuropeMarie Curie Intra-European Fellowship
bordeaux.journalAnnals of Forest Science
bordeaux.page78
bordeaux.volume77
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-02930298
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02930298v1
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