A cross-validation approach with acoustic and bird datasets from four regions shows that acoustic indices produce inconsistent and non-generalizable estimates of biodiversity.
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Llusia, D. The limits of acoustic indices. Nat Ecol Evol 8, 606–607 (2024). https://doi.org/10.1038/s41559-024-02348-1
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DOI: https://doi.org/10.1038/s41559-024-02348-1