1. Centre for Ecological and Evolutionary Synthesis (CEES) Department of Biosciences University of Oslo Oslo Norway
2. Zoological Museum The Natural History Museums and Botanical Garden University of Oslo Oslo Norway
3. School of Mathematics, Statistics and Actuarial Science University of Kent Canterbury UK
4. Norwegian Institute for Water Research (NIVA) Oslo Norway
5. Norconsult AS Hamar Norway
6. Department of Mathematics and Statistics Williams College Williamstown MA USA