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Mycorrhizas and the Wood Wide Web: The Social Network of Trees

Move over, Facebook. There's a new social network in town, and it's not just for humans. The Wood Wide Web is the underground network that connects trees in the forest, and it's a web of communication and cooperation that's been around for millions of years. And who's the star of this network? Mycorrhizas, of course!

Mycorrhizas are the unsung heroes of the forest floor. These fungi form symbiotic relationships with the roots of plants, including trees like Scots Pine and Birch - which piqued my interest when Steph from Farming Carbon wrote a guest blog and mentioned how they collaborate. In exchange for sugars produced by the trees through photosynthesis, mycorrhizas provide nutrients and water to the roots. It's a win-win situation, but that's just the beginning of their story.

Mycorrhizas are like the Royal Mail of the forest. They deliver messages, and they do it fast. When a tree is under attack from a pest or disease, it sends out chemical signals through its roots. Mycorrhizas pick up on these signals and relay them to other trees through the Wood Wide Web. These messages alert other trees to the danger, allowing them to produce defensive compounds to protect themselves.

But it's not just about warnings. Trees also use the Wood Wide Web to share resources. When a tree is low on nutrients or water, it can send out a signal through its mycorrhizas. Other trees in the network can respond by sending over some of their surplus resources, ensuring that the entire community stays healthy and strong.

It's like a giant game of telephone, except the messages are real and the stakes are high. And it's not just limited to trees of the same species, either. The Wood Wide Web connects trees of different species, allowing for a diverse and thriving ecosystem.

So, the next time you're walking through a forest, remember that beneath your feet is a bustling network of mycorrhizas and trees, communicating and cooperating to keep the forest healthy and vibrant. It's a social network that's been around long before humans, and it's one that we can learn a lot from. After all, if trees can work together, maybe we can too!

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