1. Invertebrate Unit Department of Biology Royal Museum for Central Africa Tervuren Belgium
2. Limnology Unit Department of Biology Ghent University Ghent Belgium
3. Department of Biology Section of Ecology and Taxonomy National & Kapodistrian University of Athens Athens Greece
4. Institute for Biodiversity and Ecosystem Dynamics University of Amsterdam Amsterdam The Netherlands
5. Natural History Museum of CreteUniversity of Crete Crete Greece
6. Leiden University Centre for LinguisticsLeiden University Leiden The Netherlands
7. School of Natural Resources and Environment University of Michigan Ann Arbor MI USA