butterflies, Catastrophic

Butterfly populations declining rapidly in U.S. with 22% disappearing in 2 decades, study finds
New study finds butterflies are disappearing from the US at a 'catastrophic' rate
First National Analysis Finds America's Butterflies Are Disappearing at 'Catastrophic' Rate
World Wildlife Fund (WWF)3d
Eastern monarch butterfly population nearly doubles in 2025
The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.
WIBW on MSN1d
Iconic butterfly threatened by habitat loss
The monarch butterfly is one of many insects threatened by human-caused means, but Monarch Watch may have a solution.
America’s butterflies are disappearing at a ‘catastrophic’ rate
US butterfly populations are declining because of insecticides, climate change and habitat loss, with the number of the winged beauties down 22% since 2000, a new nationwide study finds.
Monarch butterflies wintering in Mexico rebound this year
The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of climate change and habitat loss, experts said Thursday.
Courthouse News Service2d
Where have all the monarchs gone?
PISMO BEACH, Calif. (CN) — In a small tree grove at the south end of Pismo Beach on California's Central Coast, one visitor has arrived with a long telephoto lens while others take photos with their smartphones or simply stare up at the trees.
Monarch Butterfly
A study, published Thursday in the journal Science, found that 22% of butterflies in the United States disappeared between 2000 and 2020.
KJZZ2d
Monarch butterfly population hibernating in Mexico nearly doubles from last winter
Mexican officials and environmental groups say better weather conditions on the butterflies’ migration route caused the uptick. But they warn population totals are still well below average.