1. Department of Statistical Science, Duke University, Durham, NC
2. Department of Economics, Management and Statistics, University of Milano–Bicocca, Milan, Italy
3. Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
4. Organismal and Evolutionary Biology Research Programme, University of Helsinki, Helsinki, Finland
5. Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway