Releasers - Anne Kilmer couldn't possibly be more wrong!

Xi Wang xiwang at sprint.ca
Sun Apr 27 05:08:28 EDT 2003


Define substantial.  At what point do we characterize release as detrimental to the
dynamics of population genetics?  And even if you do have an absolute cutoff point,
how can anyone justify it to be more than an arbitrary human standard.

Cheers,
Xi Wang

Paul Cherubini wrote:

> Xi Wang wrote:
>
> > Another issue is that releasing butterflies disturbs the natural
> > evolution of the local population by introducing new genes and diluting out the
> > current ones.  You're essentially artificially removing interbreeding barriers
> > between populations.
>
> Yes, but only Monarchs and Painted Ladies are bred and released in
> by commercial breeders in substantial numbers and these are both wide
> ranging, migratory butterflies without any geographically isolated local
> populations.  Here are some findings of a new monarch genetics study that
> was published last year:
> http://www.saber.net/~monarch/pgi-l.jpg.jpg
> http://www.saber.net/~monarch/Idh-l.jpg.jpg
>
> Paul Cherubini
>
>
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