1 Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre, 60325, Frankfurt, Germany. [email protected].
2 Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre, 60325, Frankfurt, Germany.
3 Department of Systematic Botany and Functional Biodiversity, University of Leipzig, Johannisallee 21-23, 04103, Leipzig, Germany.
4 Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013, Bern, Switzerland.
5 Departamento de Biología, Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentalesy Tecnología, Universidad Rey Juan Carlos, Móstoles, 28933, Spain.
6 Department of Genetics, Evolution and Environment, University College London, Gower Street, London, WC1E 6BT, UK.
7 Biology, School of Natural and Environmental Sciences, Newcastle University, Newcastle-Upon-Tyne, NE1 7RU, UK.
In the version of this Perspective originally published, in the figure in Box 3 the middle panel of the top row was incorrectly labelled '50% threshold-plus'; it should have read '50% threshold'. This has now been corrected.