Monarch Butterfly Migration Update: September 16, 2005
Today’s Update Includes
Highlights From the Migration Trail
"Amazing!" "Wow!" "What an incredible sight!" came the word from the Midwest on Wednesday as this fall's first classic cold front swept across the region. Here's a selection of the reports we received:
Who Saw the Strongest Migration? "Migration Rate Math"
Read the comments above carefully and calculate the migration rate for each observation. Then answer:
To respond to this Challenge Question, please follow these instructions.
What's the Migration Rate Passing Over You?
When you watch monarch migration, keep track of the number of monarchs you see AND the length of time you are watching. Please include the migration rate when you report your observations. Here's a fall migration data sheet to guide your observations:
Who Will See the Record Flight in Fall 2005?
As more and more monarchs funnel toward Mexico this fall, the numbers flying overhead will become greater and greater. Which lucky people on the ground below will see the most spectacular migration? Let's see! Hereafter, we will include the week's most impressive sighting in our weekly updates. When and where do you predict monarch migration will be strongest in fall 2005? Record this fall's record observations on this data sheet.
Migration Rate Math: Practice Worksheet (and Answers!)
Here's a chance to practice calculating the migration rate using sample observations. Put the observations in order, from most to least. (Then check your answers.)
How to Report Your Observations
Put your monarch news on the map! Please send reports of monarchs flying, feeding, and resting. When you report your observations, include wind speed and direction, as well as the migration rate. When you're ready to report, see:
The Next Monarch Migration Update Will Be Posted on September 23, 2005.
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