The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...
The Western population of the monarch butterfly ... by 2080. Habitat destruction, pesticides and extreme weather fluctuation due to climate change are to blame for the butterfly’s decline.
The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...
This winter, volunteers from the Xerces Society, a nonprofit environmental group, tallied just 9,119 western monarchs — a ...
Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...