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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.
Anosia plexippus (Moore, 1883)[5] 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 ...
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 ...
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Monarch Watch. Monarch Watch is a volunteer-based citizen science organization that tracks the fall migration of the monarch butterfly. [1] It is self-described as "a nonprofit education, conservation, and research program based at the University of Kansas that focuses on the monarch butterfly, its habitat, and its spectacular fall migration."
For the record: 1:10 p.m. Oct. 30, 2023: An earlier version of this article stated that the California Bumble Bee Atlas project is a Xerces-supported group in Riverside.The project, based in ...
Insect migration. Insect migration is the seasonal movement of insects, particularly those by species of dragonflies, beetles, butterflies and moths. The distance can vary with species and in most cases, these movements involve large numbers of individuals. In some cases, the individuals that migrate in one direction may not return and the next ...
In 2017, the U.S. Geological Service reported that as many as 1.8 billion additional milkweed stems would be needed in North America to restore the monarch butterfly population. It takes about 28. ...