Acknowledgements
We thank Matthieu Barbier and the members of the EcoNetLab and the Theoretical Ecology Lab for helpful discussions, and Matthieu Barbier for constructive comments on the manuscript. GA was supported by the International Research Training Group TreeDì funded by the German Research Foundation (DFG; GRK 2324/1 - 2018 (P9), 319936945). SW was supported by the National Natural Science Foundation of China (31988102). BG and UB gratefully acknowledge the support of iDiv funded by the German Research Foundation (DFG–FZT 118, 202548816).