RE: mass extinctions and technology

[npharris@umich.edu]

Quoting Mark Harvey <mharvey@scu.edu.au>:

> I concede I would expect see taxonomic some homogenization.  Perhaps the 
> "introduced species" went extinct before they had a good window of 
> opportunity for preservation (say <1000 years).  Perhaps those "introduced 
> species" that did survive are not well represented in the fossil 
> record.

On the contrary, I would expect to see an explosion of starling- and house 
sparrow-derived birds in the Americas and Australasia, an explosion of 
placentals in Australia, an explosion of Canada goose- and Eastern Gray 
Squirrel-derived species in Europe, etc.

--Nick P.