Tropical bird populations reduced by a third since 1980, compared to a world without climate change: Study in Nature Ecology and Evolution

A new study reveals a significant decline in tropical bird populations, with losses ranging from 25-38% since 1980 due to intensifying heat extremes. Tropical birds now face ten times more extreme heat conditions than four decades ago, leading to increased mortality and reduced breeding success. In lower-latitude tropical regions, heat extremes are impacting bird populations more than deforestation.