1. Department of Biology University of Nevada, Reno Reno Nevada USA
2. Institute of Zoology Zoological Society of London London UK
3. Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências da Universidade de Lisboa Lisbon Portugal
4. Department of Biology New Mexico Institute of Mining and Technology Socorro New Mexico USA
5. Department of Biological Sciences University of Pittsburgh Pittsburgh Pennsylvania USA
6. Department of Pathology Microbiology and Immunology, Vanderbilt University School of Medicine Nashville Tennessee USA