1. Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
2. Amsterdam Institute for Life and Environment (A-LIFE), Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
3. Department of Ecoscience, Aarhus University, C. F. Møllers Alle 4, DK-8000, Aarhus, Denmark