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The Monarch Grove Sanctuary is an urban nature preserve in Pacific Grove, California. It protects the monarch butterflies that winter in Pacific Grove arriving in October. It is maintained by a volunteer crew. [2] About 12–16,000 butterflies stayed at the sanctuary during the 2022-23 winter, making it the fourth largest of its type in ...
There is a ray of hope for the vanishing orange-and-black Western monarch butterflies. The number wintering along California's central coast is bouncing back after the population, whose presence ...
But that's still around 90% below the historic norms seen in the 1980s, Pelton says, when an estimated 1 million to 15 million monarch butterflies overwintered along the California coast ...
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Chasing monarchs: Migrating with the butterflies of passage. Yale University Press. ISBN 978-0300203875. Journals. Brower, Lincoln (1977). "Monarch Migration". Natural History. 85 (6): 41–53. Reports. The Legal Status of the Monarch Butterfly in California (Report). International Environmental Law Project and the Xerces Society. 2012.
Volunteers who visited sites in California and Arizona around Thanksgiving tallied more than 230,000 butterflies, compared to 330,000 in 2022, according to the Xerces Society, an environmental nonprofit that focuses on the conservation of invertebrates.
The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in California ...
The Edith's checkerspot is found in North America, where it ranges from southern British Columbia and Alberta south to Baja California, Nevada, Utah, and Colorado. [5] The species can be found in locations of the San Bernardino Mountains, Sierra Nevada, higher Cascade Mountains of Oregon to Washington, and in areas of the Great Basin, including central Oregon and the Rocky Mountains. [6]