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Who are they ?. ? ? ? ? ? ? ?. G u e ss i t !. G u e ss i t !. Illu so ry Li ght. G u e ss i t !. Purple Crow butterfly. There are two species of winter migrating b u t t e r f l i e s in the world. The Mexican M o n a r c h B u t t e r f l i e s.
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Who are they ? ???????
There are two species of winter migratingbutterflies in the world.
Monarch Caterpillar Becoming a Chrysalis Monarch Emerging from a Chrysalis
Theyarenotableto survive the cold wintersof theUnitedStatesandCanada ,sotheymigrate south and westeachautumnto escapethe cold weather.
Canada http://monarchwatch.org/blog/ United States Wow ! They are really incredible , right ? Mexico
More than(1)60,000 (2)6,000 (3)600,000
Where can we find them ?
PurpleButterflyValley ↗ Can youseethose butterflies?
Theytogether in large aggregations of overwinter one hundredtosix hundred thousandbutterflies.
Let’s getcloser to it ! Let’s see it ! http://www.youtube.com/watch?v=ilVxq39rkIE
They canfly upto300 kmtogo back home. ● ● ● ● ● ● ★ ★ ★ ★ ★ ★ ●
They travel in numbers of morethan per minute. 10,000
Every winter ,about onemillionbutterflies glide on purple wings to take shelter in warm valleys at the foot of Dawu Mountain or Maolin. ★ ● ★ ● ★ ● ★ ● ★ ● ★ ★ ● ● ●
Dawu Mt. in Taitung
The PurpleButterflyValleyfaces the southandthe sheltering mountains areinthe north . the north the south
First an , egg
then a , larva
Caterpillar molting Let’s see the molting of another kind of butterfly http://www.youtube.com/watch?v=NsMPxvsdDdk
Two introduced plants are damaging to the ecosystem . Chromolaena odorata(bitter bush) Mikania micrantha(American rope) They form dense stands killing trees as well as growth of other plants .
To accommodatelarge population of tourists, people cut down their favorite treesto build …..
A parking lot and a park It was an overwintering site in which over 20,0000 butterflies winter .
Some people capture them in butterfly nets for recreation or for study
Let’s create a pure land for them .
Thank you for watching ! • reference resources • http://library.taiwanschoolnet.org/gsh2009/gsh5739/web_10.htm • http://www.butterfly.org.tw/euploea/msg.html • http://www.maolin-nsa.gov.tw/user/Article.aspx?Lang=2&SNo=03000027 • http://butterfly.plog.mlc.edu.tw/category/196/345 • http://etoe.mlc.edu.tw/materialf/6105/left.htm • http://cc428jane.myweb.hinet.net/index.html • http://butterflywebsite.com/conservation.cfm • http://www.butterfly.org.tw/act1.php • http://www.monarchwatch.org/gallery/photo/wat1.htm • http://images.google.com.tw/images?q=%E7%B4%AB%E6%96%91%E8%9D%B6&hl=zhTW&gbv=2&tbs=isch:1&ei=cbRwTNS5CJOEuwP9yuVB&sa=N&start=20&ndsp=20&biw=1020&bih=549 • http://tw.image.search.yahoo.com/search/images?ei=UTF-8&p=%E7%B4%AB%E6%96%91%E8%9D%B6&fr2=tab-web&fr=auto