The question of native or indigenous species is only of importance if
you study or care about ecology. If you don't, it would appear
meaningless.
I would suggest a distinction based on whether or not a species was
introduced by mankind. Non-introduced species often have come from
other areas, but slowly, and with less disastrous consequences on the
balance of a given region's native species.
As far as the garden of Eden is concerned, I always thought it was in
Mesopotamia -- present day Iraq. Which would still be Paradise if not
for the harm done by human folly -- or so the story goes.
--
Peter Borst <[log in to unmask]>