1. Department of Biology Centre for Biodiversity Dynamics Norwegian University of Science and Technology Trondheim Norway
2. Department of Forest & Conservation Sciences University of British Columbia Vancouver British Columbia Canada
3. School of Biological Sciences Illinois State University Normal Illinois USA
4. Department of Evolutionary Biology & Environmental Studies University of Zurich Zurich Switzerland
5. Zoological Museum University of Zurich Zurich Switzerland
6. School of Biological Sciences University of Aberdeen Aberdeen UK