Barcelona’s butterflies plummet 40%: abandoned meadows last refuge
Barcelona’s butterfly populations have declined by 40% in the past five years, according to a June 2026 report by the *Catalan Institute for Biodiversity Research*, with abandoned grasslands now serving as their sole remaining habitat as urbanization and agricultural intensification shrink natural ecosystems. The Collapse: 40% Drop in Barcelona’s Butterflies, Five Years of Data A … Read more