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Old 02-04-2010, 10:27 PM   #1
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butterfly Tracking the 2010 Monarch Butterfly Migration

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Journey North's Monarch Butterfly Migration Tracking Project
Help track the monarch butterfly migration each fall and spring as the butterflies travel to and from Mexico. Report your own observations of migrating butterflies to real-time migration maps.
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Journey North begins in February when the monarchs are at their winter refuge deep in central Mexico. The monarch's unique winter habitat is found on only 12 mountaintops on the planet, and the monarch's story is one of nature's most incredible examples of adaptation and survival.
Journey North's Monarch Butterfly weekly updates begin today.
http://www.learner.org/jnorth/monarch/News.html

Spring 2010 Monarch Butterfly Migration Map:
Monarch Butterfly Migration Map, Spring 2010

First Milkweed Spring 2010 map:
First Milkweed, Spring 2010
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Old 02-09-2010, 02:32 AM   #2
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I heard we've lost a boatload of monarchs to below normal temps and freezing rains. What do you know about it?
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Old 02-23-2010, 12:51 PM   #3
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This year's winter population was already at record lows:
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This year's population is the smallest ever measured since monitoring began in 1994.
Migration Update: February 4, 2010

As if that wasn't bad enough, a rainstorm and unusually cold weather in their wintering area may decrease the population even more:
Monarch Update: February 18, 2010
http://www.learner.org/jnorth/images/graphics/mexico/PopulationEstimate_PostStorm2010.gif

The monarchs will need all the help they can get this year. If you don't have milkweeds, this would be a great year to start growing them!
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Old 03-05-2010, 05:31 PM   #4
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It's March! The monarch's journey north is about to begin. At the colonies in Mexico, the days are getting longer, the air is getting drier, and the temperatures are getting warmer. It's almost time to go! Get ready to track the spring migration.
Monarch Migration Update: March 4, 2010
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Old 03-05-2010, 10:04 PM   #5
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I went to the JourneyNorth site, and I see that there have been several sightings already, of adult monarchs headed north! Both sightings were made this week, at Mission, Texas. Mission is just north of the Mexico border, and about 30 miles west of Harlingen, Texas. The monarchs usually make it to Madison, Wisconsin in June. Just as well, our milkweed is buried under a foot of snow at this time...
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Old 03-05-2010, 10:27 PM   #6
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Gawd I love the internet! Great site, Cirsium, thanks so much. I'm going to be in New Mexico next week and now I know to keep my eyes open for the Monarchs. They've been reported in Texas and Arizona so it stands to reason..
Thanks again.
Dan
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Old 03-25-2010, 07:56 AM   #7
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Default Storms threaten butterflies' winter rest in Mexico

Storms threaten butterflies' winter rest in Mexico
Patrick Rucker
LOS SAUCOS, Mexico
Thu Mar 18, 2010 12:40pm EDT

Storms threaten butterflies' winter rest in Mexico | Reuters
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A loss of forests and food sources has for years thinned the number of monarchs coming to Mexico. But scientists fear that a new pattern of punishing winter storms may mark the start of an irreversible decline of the transcontinental migration.

In early February, normally one of Mexico's driest months, 15 inches of precipitation fell on hilly central regions, battering monarch reserves with snow, sleet and freezing rain.

Fewer butterflies arrived this year than ever before, and as many as half of them are thought to have perished in February...
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