Bird populations in the tropics have dropped by roughly a third (25–38%) since 1980 due to intensifying heat extremes, compared to a world without climate change, with some species having declined in abundance by over 50%, according to a study published today in Nature Ecology & Evolution with contributions from the Potsdam Institute for Climate Impact Research (PIK), the University of Queensland and Barcelona Supercomputing Center (BSC).
Tropical bird populations have fallen by a third since 1980, compared to a world without climate change
