1. School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
2. School of Life Sciences, Center for Evolution & Medicine, Arizona State University, Tempe, AZ
3. Institute of Ecology & Evolution, University of Berne, Berne, Switzerland
4. Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
5. Department of Biology, University of Kentucky, Lexington, KY
6. Department of Organismic & Evolutionary Biology and Molecular & Cellular Biology, Museum of Comparative Zoology, Howard Hughes Medical Institute, Harvard University, Cambridge, MA