In article ,
"Des Higgins" writes:
|
| It is actually undoing millions of years of evolution by letting species mix
| willy nilly.

In some places, yes. In the UK, not really. There are a mere handful
of plants (and PERHAPS two land vertebrates) that have survived from
11,500 years ago. All of the rest have colonised or been introduced
by man (and we don't really know which, in most cases).

It is true that introducing plants from outside western or northern
Eurasia 'undoes millions of years of evolution', but that applies to
fewer plants than most people realise. It doesn't apply to Rhododendron
ponticum, for example.


Regards,
Nick Maclaren.