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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.
The Volcanic Belt pine–oak forests of eastern Michoacán and western México states is the winter habitat of monarch butterflies (Danaus plexippus), which migrate from temperate regions of North America east of the Rocky Mountains. The Mariposa Monarca Biosphere Reserve is within this habitat.
Southward migrating monarchs resting on a pine tree in Fire Island National Seashore on Long Island, New York (September 2021). Although the exact dates change each year, by the end of October, the population of monarchs east of the Rocky Mountains migrates to the sanctuaries of the Mariposa Monarca Biosphere Reserve within the Trans-Mexican Volcanic Belt pine-oak forests in the Mexican states ...
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 ...
A monarch butterfly feeding on milkweed. (Shutterstock) The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%.
Mexican experts say the number of monarch butterflies that arrived to winter in mountaintop forests rose by 35% from last year.
Valle de Bravo (Latin American Spanish: [ˈbaʝe ðe ˈβɾaβo] ⓘ) is one of 125 municipalities in the State of Mexico, Mexico. The largest town and municipal seat is the town of Valle de Bravo. It is located on the shore of Lake Avándaro, approximately 156 km (97 miles) southwest of Mexico City and west of Toluca on highways 15, 134 or 1. [2]
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.