1 University of Goettingen, Goettingen, Germany. stephan.getzin@uni-goettingen.de.
2 Gobabeb Namib Research Institute, Walvis Bay, Namibia. stephan.getzin@uni-goettingen.de.
3 Ben-Gurion University of the Negev, Sede Boqer, Israel.
4 Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Sevilla, Spain.
5 Centre for Ecosystem Science, UNSW Sydney, Sydney, New South Wales, Australia.
6 Centre for Engineering Innovation: Agriculture and Ecological Restoration, School of Agriculture and Environment, The University of Western Australia, Crawley, Western Australia, Australia.
7 Kings Park Science, Department of Biodiversity, Conservation and Attractions, Perth, Western Australia, Australia.