Sergio Rasmann1, Kailen A Mooney2. 1. Institute of Biology, University of Neuchâtel, Rue Emile-Argand 11, CH-2000 Neuchâtel, Switzerland. Electronic address: sergio.rasmann@unine.ch. 2. Department of Ecology and Evolutionary Biology, University of California-Irvine, 321 Steinhaus Hall, Irvine, CA 92697-2525, USA. Electronic address: mooneyk@uci.edu.