Barcelona Butterfly Population Plummets 40% Over 3 Decades
For three decades, Catalonia’s butterfly populations have declined by 40%, with observers now counting just 60 mariposas where they once saw 100, according to the Catalan Butterfly Monitoring Scheme (CBMS), a citizen-science initiative tracking diurnal butterflies since 1994. The drop mirrors broader European trends, where habitat loss and climate shifts are pushing species toward collapse—leaving … Read more