Update: April 24, 2008
Your Sightings! >>
The Migration: Maps, Questions and Highlights
Six New States — and a Sighting in South Dakota!
a week! According to observers, the monarchs moved into six new
states and a most remarkable sighting was reported from Sioux Falls,
South Dakota. The monarch was spotted by an experienced monarch
tagger who saw the butterfly outside his office window only 15 feet
away. At latitude 43N, this sighting is more than 300 miles north
of the monarchs that just appeared in Missouri and Kansas. If the
butterfly came from Mexico it would have flown over 1,600 miles!
Where do you think the monarch came from? Do you think this is a
the evidence and decide what you think. >>
important observation was made this week by monarch expert Dr. Chip
Taylor of Monarch Watch. He announced the first monarch in Lawrence,
Kansas, and added: "This spring is the first time that I can
recall the monarchs being ahead of the milkweed. (Phenologically the
plants are about 9 days slower to develop this year than normal).
Yet, there may be a few hot spots in the region such as the edges
of dirt roads where the milkweeds are up enough for the females to
lay a few eggs." According to Dr. Taylor, if monarchs fly as
far north from Mexico as Lawrence, Kansas, they usually arrive during
the 3rd week of April.
Kansas City, Missouri
April 20, 2008
more about the sighting in South Dakota >>
exciting addition to the map. A very early monarch was seen on
April 11th in New Jersey but was just reported this week.
the migration map only shows where people have REPORTED monarchs,
not necessarily where the monarchs are.
where the monarchs will go next! Add 6 new states to
and record your next predictions.
weather like this carry a monarch to South Dakota?
air mass as far north as Canada
maps show conditions on Sunday, April 20th. There were several
days with weather like this before the April 22nd sighting
in South Dakota. Notice how the strong south winds carried
warm air northward across the Great Plains and across the
Canadian border. Did a monarch ride north during such conditions?
Question #11: Where
Did the S.D. Monarch Come From? >>
do you think the monarch that was sighted in South Dakota came from?
Explain how you reached your conclusion and include evidence to support
in your journal and send
us your answer for possible inclusion in next week's update.
to last week's Challenge Question #9 >>
to last week's Challenge Question #10 >>
Amazing Adaptations: Larvae Legs >>
is the only food a monarch larva eats. Have you ever considered this?
How does a young monarch manage to eat the same leaf it's standing upon?
Take a close look at the amazing legs monarch larvae have. How do their
special legs help monarchs survive?
Adaptations: How Do Larvae's Legs Help Monarchs Survive? >>
Monarch Butterfly Resources to Explore
Next Monarch Migration Update Will Be Posted on May 1, 2008.