Thoret E. auteur aut IRD Jourdan Hervé auteur aut IRD Gasc Amandine auteur aut IRD text journalArticle eng text/pdf born digital access Ecoacoustic indices have become widely used tools for monitoring and characterizing soundscapes. Although they have proven useful for relating acoustic measurements to ecological patterns, their conceptual and methodological foundations remain debated. Here, this Letter identifies five recurring limitations, ranging from theoretical disconnects to methodological shortcomings, that undermine their interpretability, reproducibility, and ecological relevance. The Letter concludes by outlining a possible roadmap to address these limitations, including the adoption of auditory-inspired representations, the standardization of computational procedures, validation across contexts, and the use of more explainable modeling approaches. specialized 020 021 159 3 2616-2619 2026 0001-4966 https://www.documentation.ird.fr/hor/fdi:010096853 10.1121/10.0043166 0001-4966 [F B010096853] https://www.documentation.ird.fr/hor/fdi:010096853 https://www.documentation.ird.fr/intranet/publi/2026-04/010096853.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2026-04-15 2026-04-15 fdi:010096853 fre