1. Department of Biological and Environmental Science University of Jyväskylä Jyväskylä Finland
2. Department of Zoology Stockholm University Stockholm Sweden
3. Zoological Institute and Museum Greifswald University Greifswald Germany
4. Department of Biology University of Padua Padua Italy
5. Te?ted Oy Jyväskylä Finland
6. Department of Plant and Soil Science University of Vermont Burlington Vermont USA