1. Department of Terrestrial Ecology at the Netherlands Institute of Ecology, in Wageningen. JAH
2. Department of Ecological Sciences–Animal Ecology at the VU University Amsterdam, in The Netherlands
3. Works in Gouda, the Netherlands
4. Department of Terrestrial Ecology at the Netherlands Institute of Ecology, in Wageningen, and with the Institute of Integrative Biology, in Zürich, Switzerland
5. Institute for Biodiversity and Ecosystem Dynamics at the University of Amsterdam, in The Netherlands
6. Amsterdam University College, in The Netherlands
7. Department of Animal Ecology at Netherlands Institute of Ecology, in Wageningen
8. Department of Wildlife, Fish, and Conservation Biology at the University of California, Davis
9. School of Experimental Psychology and Cabot Institute at the University of Bristol, in the United Kingdom, and with CSIRO Oceans and Atmosphere, in Hobart, Tasmania, Australia
10. Wildlife Research Division of Environment and Climate Change Canada, and with the Department of Biological Sciences at the University of Alberta, in Edmonton, Canada
11. Department of Biology at Colorado State University, in Fort Collins
12. Polar Bears International, in Bozeman, Montana, and with the Department of Zoology and Physiology at the University of Wyoming, in Laramie
13. Department of Meteorology and Atmospheric Science at Pennsylvania State University, in University Park