How and where do disturbances promote the establishment of nonnative mycorrhizal plants at high elevations?
In this issue of New Phytologist, Clavel et al. (2021; pp. 1156-1168) showed, for the first time, that human-driven soil disturbances increase the occurrence and richness of arbuscular mycorrhizal (AM) fungi, along with the abundance of their non-native host plant species in sensitive mountain ecosystems. This finding enables us to take a big step towards a better understanding of the invasion processes at high elevations. Additionally, this finding is opening new avenues about how, and where disturbances can act synergistically with plant-symbiotic microbes, promoting the spread of nonnative plant species.