Butterflies are in decline — and that could have dire consequences for life on Earth

Entomologist Josef H. Reichholf has been watching butterfly populations decline over the past 50 years

The decline of butterflies in Europe: Problems, significance, and possible solutions

Butterfly Populations Declining By Two Percent Every Year Due to Climate Change - One Green Planet

Group trying to prevent monarch butterflies from becoming extinct

Flight-induced compass representation in the monarch butterfly heading network - ScienceDirect

Three Out of Four Populations of Rare Butterflies Have Been Lost

The decline of butterflies in Europe: Problems, significance, and possible solutions

Europe's grassland butterfly population down more than a third in 10 years, Butterflies

Assessing risk for butterflies in the context of climate change, demographic uncertainty, and heterogeneous data sources - Forister - 2023 - Ecological Monographs - Wiley Online Library

What's behind rapid decline in butterflies worldwide? - ISRAEL21c

Monarch Butterflies Have Now Officially Been Labelled As Endangered

Monarch butterflies aren't endangered, reversing recent decision. Is that good news?