Natural History Wanderings

MongaBay reported

A study in the United States found a dramatic 22% decline in butterfly populations between 2000 and 2020.

Previous research has focused on a specific butterfly species or regions of the country. For this study, researchers wanted to understand overall butterfly population trends across the U.S.

They gathered records of 12.6 million individual butterflies across 554 species, from more than 76,000 surveys, many conducted by citizen science groups in nearly 2,500 locations.

Read on news.mongabay.com/short-article/2025/03/one-in-five-butterflies-lost-in-the-us-since-2000-study-finds/