De Frenne, Pieter2; Coomes, David A.24; De Schrijver, An2; Staelens, Jeroen2; Alexander, Jake M.4; Bernhardt-Römermann, Markus5; Brunet, Jörg6; Chabrerie, Olivier7; Chiarucci, Alessandro8; den Ouden, Jan9; Eckstein, R. Lutz10; Graae, Bente J.25; Gruwez, Robert2; Hédl, Radim12; Hermy, Martin13; Kolb, Annette26; Mårell, Anders15; Mullender, Samantha M.24; Olsen, Siri L.27; Orczewska, Anna28; Peterken, George18; Petrík, Petr19; Plue, Jan20; Simonson, William D.24; Tomescu, Cezar W.21; Vangansbeke, Pieter2; Verstraeten, Gorik22; Vesterdal, Lars29; Wulf, Monika23; Verheyen, Kris2
1 Forest, Nature and Biomass, Department of Geosciences and Natural Resource Management, Faculty of Science, Københavns Universitet2 Forest & Nature Lab, Ghent University3 University of Cambridge4 Institute of Integrative Biology, ETH Zürich5 Friedrich Schiller University6 Swedish University of Agricultural Sciences7 Universite de Picardie Jules Verne8 University of Siena9 Wageningen University and Research Centre10 Justus Liebig University Giessen11 Norwegian University of Science and Technology12 Department of Vegetation Ecology, Institute of Botany, Academy of Sciences of the Czech Republic13 K.U. Leuven14 University of Bremen15 UR EFNO, Irstea, Domaine des Barres16 Norwegian University of Life Sciences17 University of Silesia18 Beechwood House, Lydney, UK19 Department of Geographic Information Systems and Remote Sensing, Institute of Botany, Academy of Sciences of the Czech Republic20 Stockholm University21 Stefan cel Mare University22 Forest & Nature Lab, Ghent University,23 Leibniz-Center for Agricultural Landscape Research (ZALF)24 University of Cambridge25 Norwegian University of Science and Technology26 University of Bremen27 Norwegian University of Life Sciences28 University of Silesia29 Forest, Nature and Biomass, Department of Geosciences and Natural Resource Management, Faculty of Science, Københavns Universitet
Intraspecific variation in growth responses to nonlocal soils
•Most range shift predictions focus on the dispersal phase of the colonization process. Because moving populations experience increasingly dissimilar nonclimatic environmental conditions as they track climate warming, it is also critical to test how individuals originating from contrasting thermal environments can establish in nonlocal sites. •We assess the intraspecific variation in growth responses to nonlocal soils by planting a widespread grass of deciduous forests (Milium effusum) into an experimental common garden using combinations of seeds and soil sampled in 22 sites across its distributional range, and reflecting movement scenarios of up to 1600 km. Furthermore, to determine temperature and forest-structural effects, the plants and soils were experimentally warmed and shaded. •We found significantly positive effects of the difference between the temperature of the sites of seed and soil collection on growth and seedling emergence rates. Migrant plants might thus encounter increasingly favourable soil conditions while tracking the isotherms towards currently ‘colder’ soils. These effects persisted under experimental warming. Rising temperatures and light availability generally enhanced plant performance. •Our results suggest that abiotic and biotic soil characteristics can shape climate change-driven plant movements by affecting growth of nonlocal migrants, a mechanism which should be integrated into predictions of future range shifts.
New Phytologist (online), 2014, Vol 202, Issue 2, p. 431-441