MadSci Network: Evolution

Subject: Is physical isolation necessary for speciation?

Date: Mon Sep 15 15:13:00 1997
Posted by Christian Dibble
Grade level: other
School: No school entered.
City: Allston State/Province: MA
Country: USA
Area of science: Evolution
ID: 874354380.Ev
Speciation can be facilitated by the separation and eventual isolation
of two or more fractions of a population.  It seems that physical
isolation is necessary before a group can begin to split into new
species.  If this is so how did the millions of isolation events
occur that would be needed to create the millions of species that
exist and have existed?  I assume it has to do in part with different
organisms filling different niches.  Could you fill me in on the
theories that deal with this specific area? Thanks.

Re: Is physical isolation necessary for speciation?

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