1. School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK.
2. Center for Macroecology, Evolution and Climate, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.
3. Island Ecology and Biogeography Research Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna, Tenerife, Canary Islands 38206, Spain.
4. School of Geography, Earth and Environmental Sciences, The University of Birmingham, Birmingham B15 2TT, UK.
5. Centre for Ecology, Evolution and Environmental Changes (CE3C)–Azorean Biodiversity Group and Universidade dos Açores–Depto de Ciências Agráriase Engenharia do Ambiente, PT-9700-042, Angra do Heroísmo, Açores, Portugal.
6. Department of Ecology and Taxonomy, Faculty of Biology, National and Kapodistrian University of Athens, Athens GR-15784, Greece.