California’s monarch butterfly population plummets 86% in one year - fox5sandiego.com Fox5sandiego.com - Wed 9 Jan 21:24 GMT
Pesticides, habitat losses and more frequent and severe droughts caused by climate change are believed to be the primary reasons for the decimation of the butterfly population, according to a nonprofit.
That’s what nature lovers are fearing after a conservation group reports the population of Western monarch butterflies has plunged by 86% since late 2017 in coastal areas of California.
But if the rest of the data shows the same trend, Xerces says there are probably less than 30,000 monarch butterflies spending this winter in California.
That means the monarch butterfly population in California has dropped to less than 0.5% of its historical size.
“The monarch population in California has gone from millions of butterflies to hundreds of thousands and now, possibly, mere tens of thousands.
This is despite all the attention monarchs have received in the last few years and efforts by federal and state agencies, nonprofits, and many others to conserve them and their habitats,” the Xerces Society says in its blog post.