1. Institut des Sciences de l'Evolution, Université de Montpellier, 34095 Montpellier, France
2. Santa Fe Institute, Santa Fe, NM 87501, USA
3. Institute for Advanced Study in Toulouse, 31015 Toulouse, France
4. Departamento de Ecologı́a, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile
5. Instituto de Ecología y Biodiversidad (IEB), Casilla 653, Santiago, Chile
6. Instituto de Sistemas Complejos de Valparaíso (ISCV), Artillería 4780, Valparaíso, Chile
7. School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA
8. Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland