It's rather
difficult to understand what you're asking, because BY
definition, endemic to Chicago means it is native to Chicago, and means it
is NOT native to the rest of the USA. Do you have an example animal here
that is not endemic to Chicago, but is native to Chicago but not all of the
USA? "Native to only X but not all of Y," if Y is not a subset of X, and if
X is a subset of Y, is endemism, nothing else.
You're misquoting me. I said "Native to X but not all of Y", not
"Native to *only* X but not all of Y", there is a big difference.
A bird which is native to Chicago and Rockford and nowhere else is not
endemic to Chicago,
or endemic to Rockford, or native to the whole of N. America.
The problem here is that the use of "endemic" by biologists is different
from its use by the general population. For a biologist there are
denotations of limitation or origination, while for the general
population including epidemiologists there is a stronger tendency to
view the term as saying only that the condition is regularly. The two
groups would give a different answer to the question, "Is the European
starling endemic to the Chicago area?"
Ec