Which came first - tree or weed?

[Paul Cherubini]

Ron wrote:

> In the spring the Monarch heads north in search of disturbed/open areas
> where the Milkweeds grow.   In the fall they head south searching for a
> stand of old growth trees in which to pass the winter.

There is no old growth oyamel fir forest whatsoever at the monarch overwintering
sites in Mexico. Most trees are only 30-40 years old, none older than 80 years. 
For centuries these for have been selectively logged.

Logical conclusion? A reasonable amount of selective logging is compatible 
with monarch overwintering.

What logging policy do American scientists promote? A total ban on all
logging so as to eventually create an old growth forest.  

Paul Cherubini

 
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