: Nearktis, Neotropis etc.

[John Grehan]

>Canada, USA and Mexico is Nearktis, Central America and South America is
>neotropis ? Where is border between them?
>
>Plalearkt and nearktis is holoarktis ?
>
>What is called America North and South? Neoterra?
>
>I would like to draw map for dsisplay on internet to show zooareas who could
>be best expert?

I would venture, with all due respect to those (the great majority?)  who
believe otherwise, that all of these so-called zoogeographic areas -
Palearctic, Nearctic, Neotropical, are not worth anything so far as
biogeographic classification is concerned.
They are all geopolitical areas that lack any uniquely defining feature in
terms of their
boundary limits or inclusiveness of taxa. In other words, they are
arbitrary, and
have no real existence as natural units of evolution. One might as well say
"North merica" or "South America", "Eurasia," "Laurasia," etc - all equally
arbitrary
in this context.

John Grehan