Posted on 04/16/2013 3:57:53 PM PDT by Dysart
It’s easy to dismiss trees as inanimate features of the landscape, but these living, breathing organisms aren’t as stoic as they appear. Trees, it turns out, make all kinds of noises as they grow and respond to their environment. Happy, regularly growing trees sound different from drought stressed trees. Now, a team of researchers from Grenoble University in France is trying to pick out these cries for help amidst all the normal tree white noise in order to provide better, more targeted aid to trees suffering from drought, according to National Geographic.
In the case of drought, trees undergoing stress form tiny bubbles inside their trunks, NatGeo explains, which causes a unique ultrasonic noise.
Imagine using a straw to slurp the last few drops from the bottom of your glass: You have to increase the pressure even more. In drought-stricken trees, this increased pressure can cause the water column to break, allowing dissolved air to form bubbles that block water flow.
These breaks are called cavitations, and they can eventually lead to a tree’s demise, so researchers and managers are interested in identifying warning signs that indicate that a tree needs emergency watering.
(Excerpt) Read more at blogs.smithsonianmag.com ...
But if no one is there to hear it scream, then does it really make a sound?
I’ve seen whole threads that way...then I realized I’d forgotten my glasses....
Thank you!
Now I know the origin of the rhyme:
Tress Make Nosies
A Pocketful Of Posies
Ashes, Ashes
We All Fall Down
It is trees lamenting their fellows deaths from fire!
The things ya learn here!
LOL! I have an obligitory chupacabra story that I have to tell of FR when a thread comes up.
Once upon a time (no sh!t, I was there), on a mountain not far from Las Vegas, New Mexico, at an elevation of about 7,200 ft ASL, I was cutting pine trees on a mountain with a crew that didn't speak much english. We started a little before daylight.
Off in the distance, we heard a horrible noise like a child being put through a wringer-washer, or mountain lions mating.
It was actually a horny elk bugling (but they didn't know that, being newbies).
I motioned everyone to shut off the chain-saws and stood attentively and listened as the sound came again.
I sagely nodded my head and said one word; "chupacabra". And restarted my chain saw.
We were scheduled to work until about 1400 on that hill, but we got all the wood down, bucked, sectioned, loaded and transported about 1100.
My best day ever for a one word comment. ;)
/johnny
1The story is now settled and isn't growing any more. It's a cut and paste these days.
Just as the 3000 year old mummy looked better than Hillary, so does that tree.
****************
What’s in my cats litter box looks better than Hillary.
Well, that was quick work.
Ouch!
/johnny
Ain’t that just a fancy word for Episcopalian?
That has been answered in the negative, owing to sound waves needing an interrupter to perceive- or it isn't technically speaking a sound.
I’m awaiting one of our illustrious and benevolent mods to clean this mess up a bit.
Not here. Here it is ‘antidisestablishmenterrariumism’.
Heres a free hint...
If it hasnt rained for a month or 2 your pet tree just might be a dry, thirsty tree
If the tree is dry and thirsty, it needs water...
Do a rain dance...
Dont wait for your tree to cry and scream...
It may not be able too...
It just might have a dry parched throat...
Russian River, Ca?
N O ! lol
So if I say I hear you loud and clear I’m not really hearing anything?
That is surely the most pathetic title I have seen in a good while.
Well if your nuts fell 40 feet then had squirrels chew on them, you would scream to.
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