How Trees Communicate: The Hidden Network of the Forest

Trees, long regarded as solitary beings, are actually part of a vast underground communication network. Recent scientific research has revealed that trees interact with one another in ways that challenge our understanding of plant life. The key to their communication lies beneath the soil, in a symbiotic relationship with fungi known as mycorrhizae.

These fungi form intricate webs around tree roots, creating a network often referred to as the "Wood Wide Web." Through this network, trees exchange nutrients, water, and chemical signals. Older, larger trees, often called "mother trees," support younger saplings by transferring resources, especially in times of stress like drought. In return, the fungi benefit from sugars produced by the trees during photosynthesis.

Trees also send out warning signals when they are under attack by pests or diseases. These chemical signals can trigger neighboring trees to ramp up their defenses, such as producing toxins to deter insects. Some trees can even share water and nutrients with ailing trees to help them survive.

This underground network is essential for forest health, promoting cooperation rather than competition. It fosters a sense of community where trees look out for one another, ensuring the resilience of the ecosystem. Understanding this hidden communication between trees gives us a deeper appreciation of the intricate and intelligent systems that sustain life in forests.

Krista Braathen Owner of Heartwood Tree Consulting

Contact: ksbraathen@gmail.com
Certified Arborist and Tree Risk Assessor 

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