1. Department of Natural Sciences, National Museum of Wales, Cardiff, UK
2. Research Department, Meise Botanic Garden, Meise, Belgium
3. Department of Biology, University of Antwerp, Wilrijk, Belgium
4. Department of Life Sciences, the Natural History Museum, London, UK
5. Fachbereich Biowissenschaften, Goethe-Universität Frankfurt am Main, Institut für Ökologie, Evolution, Diversität und Forschungsinstitut Senckenberg, Frankfurt am Main, Germany
6. Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg