[Odonata-l] effects of headless defecation on Ode members

[Jim Markowich]

It got a bit too graphic for you there, eh?
  ----- Original Message ----- 
  From: julierudnick at att.net 
  To: John and Sue Gregoire <khmo at att.net> ; odonata-l at listhost.ups.edu 
  Sent: Wednesday, October 10, 2007 12:46 PM
  Subject: Re: [Odonata-l] effects of rain on Ode numbers


  Hi Y'all..

  I somehow got on this web-site mailing list and although I am enamored with dragonflies, I do not wish to continue to be on this list. Can you please remove me. Thanks to you all and have a blessed day!
  --
  -------------- Original message from khmo at att.net (John and Sue Gregoire <khmo at att.net>): -------------- 


    This is a fascinating subject. My 2 cents:

    In 2006 we had a rather large number of Celthemis elisa emerge from one of our ponds. It was a very rainy year, so my field notes are interesting. During a 2 day period of heavy rain, both day and night, hundreds emerged each day. They made their maiden flight into the Goldenrods around the pond OK but probably ran into problems with wet wings sticking to wet vegetation and starved to death. That species emergence was much lower this year.

    As to death: how can you tell when a dragonfly is actually dead? We once placed a headless Anax on our bench to see what would happen. His wings fluttered AND he continued to defecate for three days. Surely, without a head, he was "dead", but the autonomic reflexes were still activated.

    Sue G. 

    --
    John & Sue Gregoire 
    Field Ornithologists 
    Kestrel Haven Avian Migration 
    Observatory 
    5373 Fitzgerald Road 
    Burdett, NY 14818-9626 
    "Conserve & Create HABITAT" 
    http://home.att.net/~kestrelhaven/ 

















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