The presence and distribution of mycorrhizal symbionts can influence plant distribution through specific host–mycorrhiza symbiosis interactions. However, generalist hosts also exist, such as dual–mycorrhizal plants that form symbiotic associations with both ectomycorrhizal fungi (EM) and arbuscular mycorrhizal fungi (AM). Little is known about the effect of dual mycorrhization status on the hosts' global distribution and accli...

Tree species differ in their carbon (C) allocation strategies during environmental change. Disentangling species‐specific strategies and contribution to the C balance of mixed forests requires observations at the individual tree level. We measured a complete set of C pools and fluxes at the tree level in five tree species, conifers and broadleaves, co‐existing in a mature evergreen mixed Mediterranean forest. Our study period...

Mycorrhizal fungi can colonize multiple trees of a single or multiple taxa, facilitating bidirectional exchange of carbon between trees. Mycorrhiza‐induced carbon transfer was shown in the forest, but it is unknown whether carbon is shared symmetrically among tree species, and if not, which tree species are better donors and which are better recipients. Here, we test this question by investigating carbon transfer dynamics amon...

The mutualistic symbiosis between forest trees and ectomycorrhizal fungi (EMF) is among the most ubiquitous and successful interactions in terrestrial ecosystems. Specific species of EMF are known to colonize specific tree species, benefitting from their carbon source, and in turn, improving their access to soil water and nutrients. EMF also form extensive mycelial networks that can link multiple root‐tips of different trees....