out of africa

Jones Maxime Murphy morphy at cco.caltech.edu
Tue Nov 19 17:50:00 EST 1991


HXH5 at PSUVM.PSU.EDU writes:

>Is it not as likely that the greater diversity in Africa just reflects
>higher effective size of the human population in Africa during the
>later pleistocene?    It may have nothing to do with time.  And if
>there is more diversity in Africa, then tree generating algorithms
>will make trees that look like there are unique African lineages but
>a lot of others that have both African and non-African representatives.

At last, a serious and thought-provoking post.

>I do believe that there was an expansion of Hssapiens from Africa, but
>it is based on the archaeological record summarized by Richard Klein
>and others.  The parsimony tree business is too close to hocus pocus
>to be trusted IMHO.

That's nonsense. It's part of the arsenal of techniques that must be refined
and brought to bear on this question. It has great potential application
for studying evolution in general.
Jones
-- 
:)



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