Quantifying in situ phenotypic variability in the hydraulic properties of four tree species across their distribution range in Europe
2018
González-Muñoz, Noelia | Sterck, F. | Torres Ruiz, Jose Manuel | Petit, G. | Cochard, | von Arx, G. | Lintunen, A. | Caldeira, M. C. | Capdeville, Gaëlle | Copini, P. | Gebauer, R. | Grönlund, L. | Hölttä, T. | Lobo-Do-Vale, R. | Peltoniemi, M. | Stritih, A. | Urbán, J. | Delzon, Sylvain | Biodiversité, Gènes & Communautés (BioGeCo) ; Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB) | Forest Ecology and Forest Management Group ; Wageningen University and Research [Wageningen] (WUR) | Università degli Studi di Padova = University of Padua (Unipd) | Laboratoire de Physique et Physiologie Intégratives de l’Arbre en environnement Fluctuant (PIAF) ; Institut National de la Recherche Agronomique (INRA)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020]) | Swiss Federal Institute for Forest, Snow and Landscape Research WSL | Climatic change and climate impacts ; Université de Genève = University of Geneva (UNIGE) | Department of Forest Sciences ; University of Alaska [Fairbanks] (UAF) | Forest Research Centre, School of Agriculture ; Universidade de Lisboa = University of Lisbon = Université de Lisbonne (ULISBOA) | Wageningen University and Research [Wageningen] (WUR) | Mendel University in Brno (MENDELU) | Natural Resources Institute Finland (LUKE) | Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich) | ANR-10-EQPX-0016,XYLOFOREST,Plateforme d'Innovation " Forêt-Bois-Fibre-Biomasse du Futur "(2010) | ANR-10-LABX-0045,COTE,COntinental To coastal Ecosystems: evolution, adaptability and governance(2010) | European Project: 609398,FP7-PEOPLE-2013-COFUND,FP7-PEOPLE-2013-COFUND,AGREENSKILLSPLUS(2014)
International audience
Mostrar más [+] Menos [-]Inglés. Many studies have reported that hydraulic properties vary considerably between tree species, but little is known about their intraspecific variation and, therefore, their capacity to adapt to a warmer and drier climate. Here, we quantify phenotypic divergence and clinal variation for embolism resistance, hydraulic conductivity and branch growth, in four tree species, two angiosperms (Betula pendula, Populus tremula) and two conifers (Picea abies, Pinus sylvestris), across their latitudinal distribution in Europe. Growth and hydraulic efficiency varied widely within species and between populations. The variability of embolism resistance was in general weaker than that of growth and hydraulic efficiency, and very low for all species but Populus tremula. In addition, no and weak support for a safety vs. efficiency trade-off was observed for the angiosperm and conifer species, respectively. The limited variability of embolism resistance observed here for all species except Populus tremula, suggests that forest populations will unlikely be able to adapt hydraulically to drier conditions through the evolution of embolism resistance.
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