A closer look at “Bird Calls Alone Don't Prove Forest Health: Evolutionary Trees Reveal Hidden Biodiversity”, exactly as the source publishes it. A tropical forest filled with bird calls may seem vibrant, but new research published in Proceedings of the Royal Society B suggests that counting species by sight or sound can miss critical declines in evolutionary diversity. Scientists from the Cornell Lab of Ornithology and partners studied birds in the Atlantic Forest of Brazil, using evolutionary trees to measure not just how many species are present, but how distinct their lineages are.
They found that forests with similar numbers of bird species can differ greatly in the variety of evolutionary history they contain. This matters because losing unique branches of the bird family tree can erase millions of years of evolution and reduce resilience to future changes. This listing links straight to the original page, where the content is available in full.