New analysis shows damage to monarch butterfly colonies in 2016 storm worse than thought

Credit: Joshua Muoz/EyeEm via Getty ImagesUp until the 1980s, around 10 million monarch butterflies spent their winters in coastal California. Their arrival in places like Pacific Grove, aka Butterfly Town USA, was admired by locals and visitors eager to witness these beautiful, delicate insects and their distinctive orange wings. While Butterfly Town USA still has its renowned monarch butterfly sanctuary, this and other places across western North America have seen numbers of the pollinating insects plummet.    “Today there are barely 300,000,” said Cheryl Schultz, an associate professor of Washington State University, Vancouver.   She and her colleagues arrived at that estimate after combining data from hundreds of volunteers who have participated in the Xerces Society for Invertebrate Conservation’s Western Monarch Thanksgiving Count since 1997, with earlier monarch counts conducted by amateur and professional butterfly enthusiasts in the 1980s and 1990s. The findings are p

Monarch butterflies disappearing from western North America

Monarch butterfly populations from western North America have declined far more dramatically than was previously known and face a greater risk of extinction than eastern monarchs, according ...

Thu 7 Sep 17 from Phys.org

Monarch butterflies disappearing from western North America, Sat 9 Sep 17 from Science Blog

Death of a dynasty: west North America lost over 95% of its monarch butterflies in 35 years

One of the continent's most dazzling displays dies with them.

Mon 11 Sep 17 from ZME Science

Millions of monarch butterflies once inhabited the West Coast, but the number may now be just 300,000, highlighting the need for Endangered Species Act protections.

Credit: Joshua Muoz/EyeEm via Getty ImagesUp until the 1980s, around 10 million monarch butterflies spent their winters in coastal California. Their arrival in places like Pacific ...

Thu 7 Sep 17 from Discovery News

Monarch butterflies disappearing from western U.S., researchers say

The monarch butterfly populations in western North America have declined dramatically and face a greater risk of extinction, a new study shows.

Fri 8 Sep 17 from UPI

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