Martin Nuñez

Agroecological research has an important role in supporting evidence‐based land management to ensure food production is achieved whilst minimising the impacts on biodiversity and its associated ecosystem processes and services. This nexus between often competing priorities of optimal production and sustainability requires greater knowledge of management decisions to enact more sustainable and transformative practice change and to better conserve biodiversity. We highlight three key knowledge gaps in this area: (i) The use of appropriate indicators to measure dependencies and impacts on biodiversity; (ii) Methods to improve the management of resources to support the “health” of biodiversity within agroecosystems; (iii) Greater understanding of the ecosystem processes, and services generated and received across terrestrial and aquatic habitats. Synthesis and applications. Ecological research and robust science will play a vital role in supporting more sustainable food production. We see Journal of Applied Ecology playing a key role in promoting agricultural research that goes beyond a narrow focus on increasing output, and encourage more submissions at the interface of agriculture, ecology and biodiversity conservation, considering social and economic aspects for a sustainable future.

We assessed the impact of road disturbances on the dominant mycorrhizal types in ecosystems at the global level and how this mechanism can potentially lead to lasting plant community changes. We used a database of coordinated plant community surveys following mountain roads from 894 plots in 11 mountain regions across the globe in combination with an existing database of mycorrhizal–plant associations in order to approximate the relative abundance of mycorrhizal types in natural and disturbed environments. Our findings show that roadside disturbance promotes the cover of plants associated with arbuscular mycorrhizal (AM) fungi. This effect is especially strong in colder mountain environments and in mountain regions where plant communities are dominated by ectomycorrhizal (EcM) or ericoid‐mycorrhizal (ErM) associations. Furthermore, non‐native plant species, which we confirmed to be mostly AM plants, are more successful in environments dominated by AM associations. These biogeographical patterns suggest that changes in mycorrhizal types could be a crucial factor in the worldwide impact of anthropogenic disturbances on mountain ecosystems. Indeed, roadsides foster AM‐dominated systems, where AM‐fungi might aid AM‐associated plant species while potentially reducing the biotic resistance against invasive non‐native species, often also associated with AM networks. Restoration efforts in mountain ecosystems will have to contend with changes in the fundamental make‐up of EcM‐ and ErM plant communities induced by roadside disturbance.