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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.
D. plexippus, described by Linnaeus in 1758, is the species known most commonly as the monarch butterfly of North America. Its range actually extends worldwide, including Hawaii, Australia, New Zealand, Spain, and the Pacific Islands. D. erippus, the southern monarch, was described by Pieter Cramer in 1775.
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 ...
After a harsh drought from Oklahoma to Mexico caused the Monarch butterfly population to deplete, here's what to expect from the spring migration. Thanks to Oklahoma drought, monarch numbers near ...
The monarch butterfly, state insect of Texas, has been rapidly declining in number over the last 20 years, going down by 95% according to some estimates.
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 ...
Merlin was born on September 24, 1980, in southwestern France. She attended Pierre and Marie Curie University in Paris, where she received a BS in animal biology, an MS in invertebrate physiology, and finally her PhD in insect physiology in 2006. [1] She studied circadian rhythms in moths in Versailles at the National Institute for Research on ...
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."