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  2. Monarch Butterfly Biosphere Reserve - Wikipedia

    en.wikipedia.org/wiki/Monarch_Butterfly...

    The letter said, "Plummeting from a high of 1.1 billion monarch butterflies overwintering in central Mexico´s high-altitude oyamel fir forests in 1996 to a pitiful 33 million thinly scattered over seven sites during the current 2013–2014 season, the extraordinary monarch butterfly migratory phenomenon is now officially endangered.

  3. Monarch butterfly migration - Wikipedia

    en.wikipedia.org/wiki/Monarch_butterfly_migration

    Piedra Herrada, Mexico. Monarch butterfly migration is the phenomenon, mainly across North America, where the subspecies Danaus plexippus plexippus migrates each autumn to overwintering sites on the West Coast of California or mountainous sites in Central Mexico. Other populations from around the world perform minor migrations or none at all.

  4. Monarch butterfly - Wikipedia

    en.wikipedia.org/wiki/Monarch_Butterfly

    Monarch butterfly caterpillar D. p. plexippus Piedra Herrada, Mexico. The monarch butterfly or simply monarch (Danaus plexippus) is a milkweed butterfly (subfamily Danainae) in the family Nymphalidae. [6] Other common names, depending on region, include milkweed, common tiger, wanderer, and black-veined brown. [7]

  5. The number of monarch butterflies at their Mexico wintering ...

    www.aol.com/news/number-monarch-butterflies...

    The number of monarch butterflies at their wintering areas in Mexico dropped by 59% this year to the second lowest level since record keeping began, experts said Wednesday, blaming heat, drought ...

  6. Monarch Butterflies Return to Mexico - AOL

    www.aol.com/.../monarch-butterflies-return-to-mexico

    Monarch butterflies, with their striking black-and-orange coloring, have made a partial recovery in numbers of butterflies migrating from the U.S. and Canada to Mexico this year, after historic ...

  7. Number of monarch butterflies migrating to Mexico for winter ...

    www.aol.com/number-monarch-butterflies-migrating...

    A new report shows a sharp decline in monarch butterflies migrating to Mexico as well as a loss of habitat in the forests they spend their winter each year.

  8. Fred and Norah Urquhart - Wikipedia

    en.wikipedia.org/wiki/Fred_and_Norah_Urquhart

    Frederick Albert Urquhart CM (December 13, 1911 – November 3, 2002) was a Canadian zoologist and professor of zoology who studied the migration of monarch butterflies, Danaus plexippus L. [1] [2] Together with his wife, Norah Roden Urquhart CM, he identified their migration routes, discovered that the migration spans multiple generations of butterflies, and found their wintering place in ...

  9. Monarch butterfly numbers in Mexico rise by 35% - AOL

    www.aol.com/news/monarch-butterfly-numbers...

    Mexican experts said Monday that 35% more monarch butterflies arrived this year to spend the winter in mountaintop forests, compared to the previous season. Experts say the rise may reflect the ...