Monarch butterfly population in Western U.S. nears record 30-year low. Here's what to know.
The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...
Monarch butterfly count yields worrisome finding
This winter, volunteers from the Xerces Society, a nonprofit environmental group, tallied just 9,119 western monarchs — a ...
Dramatic Drop in Monarch Butterfly Count Nears Record 30-Year Low
The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...
Los Angeles Times11 天
California’s monarch butterfly population plummets; fire wipes out Topanga habitat
The Western population of the monarch ... by 2080. Habitat destruction, pesticides and extreme weather fluctuation due to climate change are all to blame for the butterfly’s decline.
The Salinas Californian on MSN5 天
Monarch butterfly numbers hit near record low in California. Here's why that matters
Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...