1. Department of Bioscience, Kalø, Aarhus University, Denmark.
2. Department of Biological Sciences, School of Life Sciences and the Environment, Royal Holloway, University of London, London, UK.
3. Department of Botany, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland.
4. Ekologicentrum, Swedish University of Agricultural Sciences, Uppsala, Sweden.
5. Dipartimento di Scienze Agroalimentari, Ambientali e Animali, Università degli Studi di Udine, Udine, Italy.
6. Institute of Bee Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
7. Institute for Biology, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany.
8. German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany.
9. Department of Biology, Lund University, Lund, Sweden.