About the Authors
Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, Iowa, United States of America
The authors have declared that no competing interests exist.
RH and JFW conceptualized the experiment. RH managed the bench experiments and the data analysis. EH conducted part of the bench and greenhouse experiments. BC and GH conducted part of the bench experiments. JAU and LF contributed to data analysis. RH, JAU, BC, EH, LF, GH, and JFW all contributed in drafting the manuscript.