Oddou Muratorio S. auteur aut IRD Demesure Musch B. auteur aut IRD Pélissier Raphaël auteur aut IRD Gouyon P. H. auteur aut IRD text journalArticle eng text/pdf born digital access Sorbus torminalis L. Crantz is a colonizing tree species usually found at low density in managed European forests. Using six microsatellite markers, we investigated spatial and temporal patterns of genetic structure within a 472-ha population of 185 individuals to infer processes shaping the distribution of genetic diversity. Only eight young stems were found to be the result of vegetative reproduction. Despite high levels of gene flow (standard deviation of gene dispersal = 360 m), marked patterns of isolation by distance were detected, associated with an aggregated distribution of individuals in similar to100-m patches. This spatial structure of both genes and individuals is likely to result from patterns of seedling recruitment combined with low tree density. Our results suggest that landscape factors and logging cycles markedly shape the distribution of favourable sites for seedling establishment, which are then colonized by sibling cohorts as a result of joint seed transportation by frugivores. These combined genetic and demographic processes result in similar genetic structure both within and among logging units. However, conversion to high forest may enhance genetic structuring. specialized microsatellite Ripley' s K function silviculture SPAGEDI spatial auto correlation spatial genetic structure FRANCE 126TELAPP08 082VEGET02 13 12 3689-3702 2004 0962-1083 https://www.documentation.ird.fr/hor/fdi:010089893 10.1111/j.1365-294X.2004.02373.x 0962-1083 [F B010089893] https://www.documentation.ird.fr/hor/fdi:010089893 https://www.documentation.ird.fr/intranet/publi/2024-04/010089893.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2006-03-29 2024-04-26 fdi:010089893 fre