>
> >Go take a quick trip to the Lost hills in Kansas.  Barren prairie.  Oh
> the southern hills of TX  and compare that biodiversity to Central Iowa.
>

You'd need to compare it prior to agriculture.  Farmers farm the most
biologically productive land--not the barrens.
A few species (out of a previously wide diversity) adapt to take advantage
of human habitat conversion to cropland.  We then typically call them
"pests."

I'm not saying that there won't be life--there always will be on
biologically productive land.  But it will often not be the species that
previously lived there.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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