1. Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience EngineeringGhent University Ghent Belgium
2. Centre d'Ecologie Fonctionnelle et Evolutive (CEFE), CEFE UMR 5175, CNRSUniv Montpellier, Univ Paul Valéry Montpellier 3, EPHE, IRD Montpellier Cedex 5 France
3. Forest Genetics and Ecophysiology Research GroupUniversidad Politécnica de Madrid Madrid Spain