1. Department of Botany University of Wisconsin‐Madison Madison WI 53706 USA
2. Department of Plant and Microbial Biology University of California‐Berkeley Berkeley CA 94720 USA
3. National Ecological Observatory Network‐Battelle 1685 38th, Suite 100 Boulder CO 80301 USA
4. Rethink Priorities 530 Divisadero St. PMB #796 San Francisco CA 94117 USA
5. Laboratoire Evolution et Diversité Biologique (EDB) UMR5174 UPS‐CNRS‐IRD, Université Toulouse 3 Paul Sabatier 118 Route de Narbonne Toulouse Cedex F‐31062 France
6. Department of Life Sciences, Centre for Functional Ecology University of Coimbra Coimbra 3000‐456 Portugal
7. Cambrium GmbH Max‐Urich‐Str. 3 13355 Berlin Germany
8. CEFE Université de Montpellier – CNRS – EPHE – IRD 1919 route de Mende F‐34293 Montpellier Cedex 5 France
9. Department of Biology Tufts University Medford MA 02155 USA
10. Department of Bacteriology University of Wisconsin‐Madison Madison WI 53706 USA