We Assumed all Monarchs Went to Mexico...
"I have wondered for some time how much the discovery of the Mexican overwintering sites has distorted the picture of Monarch behavior. For example, if we now assume monarchs all fly to Mexico in the fall, what is the need to be on the lookout for them in other places during that time?
"Here is another example: It's been implied that the successful fall migrants all originated in the northern latitudes. However, I have reared and tagged several Monarchs here in North Carolina that were later recovered in Mexico.
"When I told Dr. Bill Calvert about that last year he asked if I had published the observation. Of course not. How or where would I? My biggest stumbling block would be finding the time and methodology for a literature search to find current references claiming that the Mexican overwintering population comes from the Northern latitudes. Then I could claim a new piece of information. Anecdotally, Dr. Chip Taylor and Dr. Karen Oberhauser are aware of this, but I don't know that they have published that information either."
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