If the joy of seeing butterflies seems increasingly rare these days, it isn’t your imagination.
From 2000 to 2020, the number of butterflies fell by 22% across the continental United States. That’s 1 in 5 butterflies lost. The findings are from an analysis just published in the journal Science by the U.S. Geological Survey’s Powell Center Status of Butterflies of the United States Working Group, which I am involved in.
We found declines in just about every region of the continental U.S. and across almost all butterfly species.
Overall, nearly one-third of the 342 butterfly species we were able to study declined by more than half. Twenty-two species fell by more than 90%. Only nine actually increased in numbers.
Read more on the Conversation.
