Plant diversity effects on grassland productivity are robust to both nutrient enrichment and drought.

Address: German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany Institute of Biology, Leipzig University, Johannisallee 21, 04103 Leipzig, Germany [email protected].; Department of Ecology, Evolution and Behavior, University of Minnesota Twin Cities, Saint Paul, MN 55108, USA.; Institute for Plant Sciences, University of Bern, 3013 Bern, Switzerland Biodiversity and Climate Research Centre, Senckenberg, Senckenberganlage 25, Frankfurt am Main, 60325, Germany.; Ecological and Environmental Modelling Group, School of Mathematics and Statistics, University College Dublin, Dublin 4, Republic of Ireland.; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany.; Institute of Ecology, Friedrich Schiller University Jena, Dornburger Strasse 159, 07743 Jena, Germany.; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany Department of Physiological Diversity, Helmholtz Centre for Environmental Research, Leipzig, Germany.; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands.; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany Institute of Biology, Leipzig University, Johannisallee 21, 04103 Leipzig, Germany.; Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, IA 50011, USA.; Department of Biogeography, BayCEER, University of Bayreuth, 95440 Bayreuth, Germany.; Institute of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zurich, Switzerland.; Department of Biosciences, College of Science, Swansea University, Swansea, Wales, UK.; Ecology and Biodiversity Group, Department of Biology, Utrecht University, Padualaan 8, 3584 Utrecht, The Netherlands.; Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, UK.; Department of Disturbance Ecology, BayCEER, University of Bayreuth, 95440 Bayreuth, Germany.; Institute of Botany and Landscape Ecology, Ernst-Moritz-Arndt University Greifswald, 17487 Greifswald, Germany.; Department of Botany, Faculty of Sciences, University of South Bohemia, Branisovska 31, 37005 Ceske Budejovice, Czech Republic.; Centre for Biodiversity Theory and Modelling, Theoretical and Experimental Ecology Station, Centre National de la Recherche Scientifique and Paul Sabatier University, 09200 Moulis, France.; Department of Ecology and Ecosystem Management, School of Life Sciences, Weihenstephan, Technische Universität München, 85354 Freising, Germany.; Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya, Yokohama, Kanagawa, 240-8501, Japan.; Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY 10027, USA.; Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, 90183 Umea, Sweden.; USDA-ARS Grassland, Soil and Water Research Laboratory, Temple, TX 76502, USA.; Department of Forest Resources, University of Minnesota, 1530 North Cleveland Avenue, St. Paul, MN 55108, USA Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2751, Australia.; Department of Community Ecology, Helmholtz Centre for Environmental Research UFZ, Theodor-Lieser Strasse 4, 06120 Halle, Germany.; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany Department of Ecology and Ecosystem Management, School of Life Sciences, Weihenstephan, Technische Universität München, 85354 Freising, Germany.