BBCニュースが子供向けに樹木たちの生き様をWWWのたとえ話しにして公開しています。ここでのWWWはWoodWideWebの事です。２分足らずの動画です、英語が出来る方、ぜひお聞きください。
Tree may look like solitary individuals. but the ground beneath our feet tells a different story.
Trees are secretly talking,trading
and waging war on one another.
They do this using a network of fungi
that grow around and inside their roots.
The fungi provide the trees with nutrients and in return they receive sugars.
But scientists have found this connection
runs far deeper than first thought.
By plugging into the fungal network,
trees can share resources with each other.
The system has been nichknamed the Wood Wide Web.
It's thought that older trees, fondly known as mother trees,
use this fungal network to supply shaded seedlings with sugars giving them a better chance of survival.
Those trees that are sick or dying may dump their resources into the network
which might then be used by healthier neighbours.
Plants also use fungi to send messages to one another.
If they are attacked,they can release
chemical signals through their roots which can warn their neighbours to raise their defences.
But like our internet,the Wood Wide Web has its dark side too.
Some orchids hack the system to steal resources from nearby trees and other species,like the black walnut, spread toxic chemicals through the network to sabotage their rivals.
Arboreal cybercrime aside,scientists are still debating why plants seem to behave in such an altruistic way.
The hidden network creates a thriving community between individuals.
When your are next in woodland,
you might like to think of trees as part of a big superorganism chatting and swapping information and food under your feet.
2018/7/7
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