Acknowledgements

Research was funded by United States National Science Foundation Award #1354129. The team of the Jena-Experiment provided field space and infrastructure to successfully perform our experiments. Gerlinde Kratsch, Ulrike Gudd and the gardeners of the Jena Experiment, Steffen, Katja, Heike, Ute, and Silke were highly supportive at the field site. Carsten Moeller co-managed the field site over the course of the experiment and provided labor, advice, and passion. Oak Rankin and Robert Hicks and Larry Broom helped install the experiment. The Jena Experiment is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation, FOR 1451 and FOR 5000). NE acknowledges support from the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, funded by the German Research Foundation (FZT 118). This research was supported by the Utah Agricultural Experiment Station, Utah State University, and approved as journal paper number 9433. The authors have no conflict of interest to state.