1. Department of Zoology; Biodiversity Research Centre; University of British Columbia; Vancouver BC Canada
2. Department of Botany; University of British Columbia; Vancouver BC Canada
3. Max Planck Institute for Evolutionary Biology; Plön Germany
4. Department of Neurobiology and Behavior; Cornell University; Ithaca NY USA
5. Institut fur Okologie und Evolution; Universitat Bern; Bern Switzerland