Monarch Butterfly Update: March 8, 2012 |
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Millions of monarchs are about to begin their journey north. This week, explore how seasonal change affects monarchs and the timing of spring migration.
The butterflies can't stay in Mexico much longer, but they can't move north too quickly either.
This Week's Update Includes:
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Image of the Week | |||||||||||
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News: Flying in a Flurry | ||||||||||||
Restless and Ready From what Estela witnessed on Tuesday, the monarchs are restless and ready to go!
Dr. Lincoln Brower is visiting the sanctuaries this week and Estela had the honor of joining him.
As you read Estela's report, look for the three concerns Dr. Brower expressed about the health of the monarchs and their habitat. Presidential Visit |
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Slideshow: Spring Migration, A Race Against Time | ||||||||||||
Why does
spring migration begin in March and what triggers the monarchs' departure? Explore the time-sensitive
connections between monarchs and the seasons as you begin your spring migration study.
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Spring Migration: Warm Winter, Early Sightings? | ||||||||||||
This winter has been unsually warm. The red triangles on our map show where monarchs were reported before March 1st. Milkweed has already emerged across much of Texas, and what appear to be the first migration sightings are already being reported!
The leading edge of the migration typically crosses the Rio Grande (into Texas) around March 15th, says Texas expert Mike Quinn. This spring, we'll be watching carefully to see if the migration moves north more quickly. Pay special attention to the regions along the Gulf and Atlantic coasts where monarchs overwintered this season.
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The Migration: Maps and Journal | ||||||||||||
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 15, 2012. | ||||||||||||