H. Carl Cook
Tue, 18 Jan 2000 13:18:16 -0600
Odonata - http://www.listbot.com/cgi-bin/subscriber
I don't believe their behavior is caused by accident or disorientation.
I have observed the behavior three times, the male slowly cruises the
the site two or three times, at the finish of his last upstream trip he
does the back flip and makes a perfect three point (or five point?)
landing on the water surface, there is no struggle or panic effort to
get back into the air, after riding the surface flim a few seconds he
springs back into the air- all rather smoothly. By the time he has made
another two or three cruises a female has appeared at the site and
they begin their characteristic dancing behavior, however, in none of the
three observations did coupling occur within my view, after a few
seconds of dancing they left the site separately.
469 Crailhope Road
Center, KY 42214
From: Tom Schultz <email@example.com>
To: Odonata ListBot <firstname.lastname@example.org>
Date: Tuesday, January 18, 2000 12:00 PM
Subject: floating Calopteryx
>Odonata - http://www.listbot.com/cgi-bin/subscriber
> In the spirit of wild, untested speculation, how about this
>hypothesis? Perhaps these damselflies got momentarily turned upside
>down during an aerial dogfight or courtship flight, and in an attempt to
>ascend towards the sky, instead oriented to its reflection and hit the
>"ceiling" of the water surface. Isn't that sort of what happened to
>Tom D. Schultz, Ph.D.
>Chair and Associate Professor
>Dept. of Biology
>Granville, OH 43023
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