migration

[Chris J. Durden]

>Date: Fri, 13 Oct 2000 22:39:09 -0500
>To: "Jean-Michel MAES" <jmmaes at ibw.com.ni>
>From: "Chris J. Durden" <drdn at mail.utexas.edu>
>Subject: Re: migration
>In-Reply-To: <007801c03589$c6cd2a20$18f5fea9 at uam.edu.ni>
>References: <39E4C0E1000381E2 at deimos.email.Arizona.EDU> (added by
postmaster at email.arizona.edu)
>
>Great question. There are also populations in Costa Rica, Mexico, and
Texas that appear not to migrate. Some of these are slightly different in
shape, pattern or color. Some of them occur within the migratory range of
THE MONARCH. If one percent of the effort now devoted to MONARCH STUDY were
to be focussed on these interesting populations we might see some surprises
in our understanding of THE MONARCH.
>.........Chris Durden
>
>
>At 08:52  13/10/00 -0600, you wrote:
>>A little bit far of the discussed point... So many topics about monarch and
>>monarch populations...
>>
>>I understand that monarch (Danaus plexippus) have migrations from Mexico to
>>Canada and back or from Canada to Mexico and back. Why do they migrate ?
>>
>>In Nicaragua we have also Danaus plexippus, another population or subspecies
>>if i am not wrong. Why do they not migrate ?
>>
>>Sincerely,
>>
>>Jean-Michel MAES
>>MUSEO ENTOMOLOGICO
>>AP 527
>>LEON
>>NICARAGUA
>>tel 505-3116586
>>jmmaes at ibw.com.ni
>>-----
>>
>>