1. Department of Ecology and Environmental Sciences Umeå University Umeå Sweden
2. Department of Computational Biology Cornell University Ithaca New York USA
3. Department of Mathematics and Mathematical Statistics Umeå University Umeå Sweden
4. Advancing Systems Analysis Program, International Institute for Applied Systems Analysis Laxenburg Austria
5. Complexity Science and Evolution Unit Okinawa Institute of Science and Technology Graduate University Kunigami Japan