I don't understand from this how trees are supposed to be 'communicating' through mycorrhiza. Sharing nutrients is understandable, the definition of mycorrhiza is a symbiotic relationship with the vascular plant. The tree provides sugars to the fungus, the mycorrhiza (fungus) gives the tree easier access to minerals and nutriants that the tree would otherwise not be able to attain via its own root system, but where does 'communication' between trees come in to it? I think the science might have been taken out of context and over romanticised here.

Editors Note: What the researcher is saying here is that there is an exchange of information as well as nutrients. Her findings are that the networks that these trees create is more sophisticated and complex than the simple transfer of nutrients that has been outlined in this comment. Thanks for the post!

I live in the Forest of Dean, Gloucestershire , England and I am so glad you have done this research. I find your work totally plausible - keep it up and please explain it to the world more. I cry when I see trees cut and feel real pain when they hurt.

Thank you very much for this video! One of my dreams is to create a photoalbum of lichen and moss in Kentmere Valey, Lake District, UK with a support and possibly comments from a scientist who knows and loves the world of moss and lichen. Just somebody like you prof. r Suzanne Simard. Thank you again!