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A comment on Sounds emitted by plants under stress are airborne and informative. Parent comment

Re:Sounds emitted by plants under stress are airborne and in... by wruza on Sunday April 02, 2023 @05:28AM (#35408714)
Sometimes signal is just there regardless.

If you hit your tissue hard enough, it becomes blueish for a while (a bruise, a hemorrhage). It may benefit something by accident, but a bruise just can’t stay as pink as the rest of you, due to the physics of the process.

(From tfa) Plants exposed to drought stress have been shown to experience cavitation – a process where air bubbles form, expand and collapse in the xylem, causing vibrations

In other words, dry wood cracks.

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Re:Sounds emitted by plants under stress are airborne and in... by rightbyte on Sunday April 02, 2023 @06:20AM (#35409038)
> In other words, dry wood cracks.

How dare you translate academic technobabble to common tongue?

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Re:Sounds emitted by plants under stress are airborne and in... by shredprez on Sunday April 02, 2023 @08:30AM (#35409869)
The person you’re responding to is talking about other organisms (ie not the tree), which seems compatible with your observation here.

Trees might be screaming/bubble-popping into the abyss for simple physical reasons, but if cavitation is very important to some creature, there’s a decent chance that creature has evolved to sense these vibrations.

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Re:Sounds emitted by plants under stress are airborne and in... by TeMPOraL on Sunday April 02, 2023 @05:48PM (#35415614)
Random guess: woodpeckers might, as for them this may be a way to detect which trees offer most food for least effort.

Ironically, something I didn't realize until now, and what also confirms the original point: apparently[0] the drumming itself turned into form of communication for woodpeckers.

--

[0] - https://en.wikipedia.org/wiki/Woodpecker#Drumming

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Re:Sounds emitted by plants under stress are airborne and in... by Pompidou on Sunday April 02, 2023 @11:11AM (#35411343)
Maybe this bruise evolved with our social behaviour : most animals skin don't show this, or for higher stress. The bruise is very important in a social envirronment and is a good optimisation for mutual Care.
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Re:Sounds emitted by plants under stress are airborne and in... by _a_a_a_ on Sunday April 02, 2023 @11:43AM (#35411733)
>> (From tfa) Plants exposed to drought stress have been shown to experience cavitation – a process where air bubbles form, expand and collapse in the xylem, causing vibrations

> In other words, dry wood cracks.

I don't think it's saying that at all

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