butterfly research1 (IMAGE) Washington State University Caption Recent WSU-led research offers hope for at-risk butterflies finding that their populations did better when their habitat was actively managed. The study looked at 31 at-risk butterfly species across the U.S. whose populations are facing rapid declines related to habitat loss, climate change and pesticide use. Credit Photo by Shelly Hanks, Washington State University Usage Restrictions For use only with stories associated with this press release. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.