Subject: Squirrels and expanding range
Date: Sep 08 15:15:00 1997
From: "John Shelton - ext. 4051" - johns at ohsu.EDU



A bunch of good stuff written by: Kelly "the male" McAllister was snipped.

>The only problem with trying to espouse such a
>seemingly simple philosophy is it's so difficult to define what one means
>by "native" versus "exotic".

This gets to the heart of the question. Perhaps we are sometimes too hasty
in assuming that human actions are responsible for ecological changes. Is
it possible that the California Jay will replace the Steller's Jay simply
through natural selection? These California Jays are such aggressive
foragers I'd be surprised if they didn't have an impact on the "native" crow
population.

Your knowledge on this subject is far greater than mine. Perhaps you can
tell me the range of the Eastern Grey Squirrel? Is it feasible that it
arrived here naturally rather than being introduced by humans?

John Shelton
Portland, Oregon