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Task 3.1.2. Tests on available data from IntrBioDiv

Task lead: Prof. Oscar E. Gaggiotto, , Laboratoire d'Ecologie Alpine, Centre National de la Recherche Scientifique, Grenoble, France

The European Project IntraBioDiv (2004-2006) produced AFLP data for 40 widespread plant species over the Alps. We used these data to estimate the dispersal kernel for 27 of these species using the statistical method developed under Task T03.01.01. The dispersal kernels were then compared to several life-history traits of the species such as the life form, the mode of pollen and seed dispersal, and the ecological dominance. We found that there was a wide variety of kernels among the 32 species, with different shapes and different mean dispersal distances. Nevertheless, most species showed rather short mean dispersal distances in combination with a fat-tail. This means that despite the predominance of short-distance dispersal, for most species a small part of the dispersal takes place over long distances. The degree of genetic structuring was influenced by both species-specific dispersal abilities and the spatial recolonisation of the Alps.

Publications:

Meirmans P, J Goudet, Intrabiodiv Consortium and OE Gaggiotti (2011) Ecology and life-history affect different aspects of the population structure of 27 high-alpine plants, Molecular Ecology, 20, 3144-3155

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