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Migration, dispersion des pollens et des graines : interaction de processus démographiques et génétiques

Abstract : The ongoing climate change generates a spatial shift of the bioclimatic ranges of the different tree species. Since seed and pollen dispersal is the biological process by which plant species can move or disseminate their genes in space, it will play a major role in the plant population response to global warming. In this paper, we synthetized some major recent results about plant dispersal. We tackled three different topics: (i) seed dispersal and the ability to generate colonisation fronts on the leading edge of a species range, (ii) long distance pollen dispersal interacting with local adaptation along environmental gradients, (iii) pollen dispersal within populations and the large inter-individual and interpopulation variabilities of mating system parameters. For these three topics, we showed the importance of the interaction of spatial distribution, dispersal processes stricto sensu and demographic processes. Modelling largely contributed to better understand this interaction over the last years.
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Etienne Klein, Bruno Fady, Julie Gauzere, Francois Lefèvre, Sylvie Oddou-Muratorio, et al.. Migration, dispersion des pollens et des graines : interaction de processus démographiques et génétiques. Innovations Agronomiques, INRAE, 2015, 47, pp.81-95. ⟨10.15454/1.462268878899135E12⟩. ⟨hal-02635807⟩

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