RE: [Killietalk] re: hybrids

["Brian R. Watters" <bwatters at sasktel_net>]

Kyle Osterholt wrote:

>
> .......  How many NATURAL
> hybrid killiefish do you think this Tsunami just created ?
>

I would bet NONE. That is the same as saying that everytime there is a flood
on a floodplain, something that happens on a regular, perhaps annual basis,
that there will be natural hybridisation. That simply does not happen. I
have revisited many Notho habitats over a period of 18 years during which
period there have been many substantial floods in the areas in question and
we always find the same species/populations in the same places with no
evidence of mixing.

>
> How do you think so many different slight variations
> of the same fish occur in nature ?
>

I am not an expert in these matters but I don't think that is the way
evolution, adaptation and the development of different species and
populations works.

>
> If you don't believe this then you're fooling
> yourself.
>

I don't think so.
___________________________________________
Brian R. Watters
University of Regina
Regina, Sask. S4S 0A2, Canada
Ph: (306) 584-9161 (home); (306) 585-4663 (work)
Fax: (306) 585-5433
E-mail: bwatters at sasktel_net


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