Brower replies- The most recent ranting about monarch butterfly conservation

Stanley A. Gorodenski stan_gorodenski at asualumni.org
Fri Oct 10 13:19:22 EDT 2003


I like your responses as well as this one. I am sure you know the 
difference between a forecast (or projection) and an event. My response 
was primarily for the educational benefit of Mr. Bordelon.
Stan

Paul Cherubini wrote:

>Stanley A. Gorodenski wrote:
>
>  
>
>>You, or I, cannot forecast the economy of Mexico with 100%
>>accuracy and so you cannot forecast the direction of logging and other
>>destructive activities decades or a hundred or more years in the future
>>with 100% accuracy no matter what your photographs may show.
>>    
>>
>                                                                                                         
>Agreed, but in other parts of North American and the world, history
>shows us that the logging that accompanies agricultural and
>industrial development presents new opportunities as well as
>potential problems for the monarch.   Along the California coast, for
>example, development removed some of the native pine, oak
>and sycamore overwintering habitats the monarchs had been
>using for centuries.  However, new plantings of non-native
>eucalyptus and other evergreen trees accompanied these same
>developments and the monarchs switched over to these non-native
>trees.  Humans also inadvertently introduced the monarch to Spain,
>Australia and New Zealand during the late 19th century.  Guess
>what happened?  The annual migration / overwintering phenomenon
>became established in those areas of the world as well.  These
>migrations are supported by non-native milkweeds that also became
>introduced by accident. This is why biologists sometimes refer
>to the monarch - including the migratory monarch - as a "weedy
>opportunist".
>                                                                                                              
>Paul Cherubini
>
> 
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