Monarch Butterfly Update: March 22, 2012 |
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Estela's community said farewell to the monarchs this weekend with a pre-Hispanic dance ceremony. Also, the long-awaited population news was announced. How many monarchs were in Mexico this winter? The migration has now moved as far north as Kansas—in March! Why?
This Week's Update Includes:
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Image of the Week | |||||||||||||
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News: Riding the Heat Wave? | ||||||||||||||
Surprisingly Far North With south winds and record-breaking heat, the leading edge of the migration continued to expand rapidly last week. Two early-bird butterflies were even spotted in Kansas, more than 1,250 miles from the start in Mexico! Monarchs usually reach this latitude about April 15th.
Historic Heat Wave Monarch and Milkweed Mismatch? Numbers In, Population Down Why the Decline?
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Slideshow: How Many Monarchs This Winter? | ||||||||||||||
Put
the annual population data into perspective. Explore how scientists use it to reflect on past events, assess
current trends, and make predictions for the future.
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The Migration: Maps and Journal Page | ||||||||||||||
Let's find out when and where monarchs and milkweed appear this spring.
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The next monarch migration update will be posted on March 29, 2012. | ||||||||||||||