Spring
Recolonization of North America
(Eastern Population)
The
monarch breeding grounds in eastern North America are 11,000 times bigger
than the space the butterflies occupy during the winter in Mexico! The
monarchs leave Mexico during the month of March. The first butterflies
appear in the United States sometime before March 15th each year. It
takes until mid-June for monarchs to reach the extent of their range.
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Watch
the pattern of recolonization shown in this animation. |
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The
World in Spatial Terms
How to use maps and other geographic representations, tools, and technologies
to acquire, process, and report information.
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