1. Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, Kraków 30-387, Poland
2. Institute of Geological Sciences, Jagiellonian University, Gronostajowa 3a, 30-387 Kraków, Poland
3. Department of Physics and Astronomy, The University of Sheffield, The Hicks Building, S3 7RH, UK
4. Evolution and Optics of Nanostructures, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, 9000 Gent, Belgium
5. Department of Animal Ecology/Ecology and Genetics, Uppsala University, Norbyvägen 18 D, 752 36 Uppsala, Sweden
6. School of Biological, Environmental and Earth Sciences, University of New South Wales, Kensington NSW 2033, Sydney, Australia