Re: The Founder Selection Effect
- From: "John W Edser" <edser@xxxxxxxxxxxxxx>
- Date: Wed, 6 Feb 2008 13:34:23 -0500 (EST)
``The founders may represent a non-random sample of the
original population. This is very likely to be true
when the founders have succeeded in penetrating a
challenging barrier which normally acts to prevent migration.
In that case the founders may be individuals with
exceptional capabilities - since they penetrated the
barrier before any of the other members of their species
managed to do so.''
- http://alife.co.uk/essays/the_founder_selection_effect/
This is quite well known now. For example, John Spence and colleagues
looked at the carabid beetle _Pterastichus melenarius_ invading North
America, and found a greater proportion of winged individuals at the
invasion front.
JE:-
The greater proportion of winged individuals at the invasion front can only
have been selected for within the original (old) environment and not within
any new environment they may be attempting to move into.
Regards,
John Edser
Independent Researcher
edser@xxxxxxxxxxxxxx
.
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