Date: Tue, 22 Apr 1997 21:40:26 +0200 From: v3andesp@ulmo.stud.slu.se (Anders Espef\dlt) To: cp@opus.hpl.hp.com Message-Id: <aabcdefg1584$foo@default> Subject: Navigation jamming of flies etc..
In cp digest 1056 Laurent wrote:
>Everyone knows how the bugs are attracted by lamps at night.
>Put your droseras or pings under a lamp. When the insects hit the lamp,=
they
>are burned and think they are attacked by something. Their defense=
strategy
>is to loose altitude as soon as possible to escape or to simulate their=
death,
>maybe ? In anyway, they fall rightly to the soil... and your sticky=
plants.
Hello, it=B4s me again.
I forgot to say that I think (opinion, not proven fact) that the flies
fall onto the soil after they hit the light is because the are so severely
burnt and/or shocked by the heat that they lose control and lose altitude
and/or fall to the ground.
It=B4s a fact that some insects escape by loosing altitude when they are
struck by sonar impulses from insectivourus bats, but I think that it=B4s a
specific behaviour triggered by the sound and that it will not be activated
by a non-specific noxious stimuli like heat and/or pain. But if you have any
other opinion, let me know.
I also hope that the statement "Everyone knows how the bugs are attracted
by lamps at night.", with emphasis on "how", is even more correct now.=20
Best regards,
Anders Espefalt, Student of Veterinary Medicine (not entomology)
v3andesp@ulmo.stud.slu.se
Ps I send a special hello to Laurent, an insect interested cp:er. Are
there more?
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