Publication:
Understanding acoustic indices as multi-taxa biodiversity and habitat quality indicators

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cris.virtualsource.author-orcidd3ed2472-fd08-40a0-afbc-8d536f1427f9
dc.contributor.authorDröge, Saskia
dc.contributor.authorFulgence, Thio Rosin
dc.contributor.authorOsen, Kristina
dc.contributor.authorRakotomalala, Anjaharinony Andry Ny Aina
dc.contributor.authorRaveloaritiana, Estelle
dc.contributor.authorSchwab, Dominik
dc.contributor.authorSoazafy, Marie Rolande
dc.contributor.authorWurz, Annemarie
dc.contributor.authorKreft, Holger
dc.contributor.authorMartin, Dominic Andreas
dc.date.accessioned2025-01-10T06:43:43Z
dc.date.available2025-01-10T06:43:43Z
dc.date.issued2024-12
dc.description.abstractAcoustic monitoring captures the sound of nature, revealing biodiversity patterns and underlying drivers. Acoustic indices are increasingly used to analyse obtained recordings, but studies show inconsistent performance of acoustic indices as biodiversity indicators. Here, we develop a conceptual framework on what acoustic indices reflect, including sound sources as well as their direct and indirect drivers. We evaluate our framework using recordings from six land-use types and old-growth forest sites in north-eastern Madagascar. We found the highest correlation (adj. R-2 > 0.51) of Acoustic Diversity Index and Acoustic Entropy with endemic multi-taxa species richness, canopy closure, and vegetation density. The results suggest that including multiple taxa strengthens the association between the indices and species richness, potentially accounting for unobserved vocalising taxa, and that acoustic indices indicate habitat quality, reflecting underlying indirect and direct drivers affecting biodiversity. Yet, some acoustic indices are limited by saturation and their sensitivity is too low to detect small changes in biodiversity (e.g., loss of few species).
dc.description.numberOfPages9
dc.description.sponsorshipInstitute of Plant Sciences (IPS)
dc.identifier.doi10.48620/84540
dc.identifier.publisherDOI10.1016/j.ecolind.2024.112909
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/202799
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofEcological Indicators
dc.relation.issn1470-160X
dc.subjectAcoustic indices
dc.subjectBioacoustic
dc.subjectEcoacoustic
dc.subjectAcoustic diversity
dc.subjectSoundscape
dc.subjectMadagascar
dc.subjectLand-use change
dc.subjectDeforestation
dc.titleUnderstanding acoustic indices as multi-taxa biodiversity and habitat quality indicators
dc.typearticle
dspace.entity.typePublication
oaire.citation.startPage112909
oaire.citation.volume169
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oairecerif.author.affiliationInstitute of Plant Sciences (IPS)
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oairecerif.author.affiliation2Institute of Plant Sciences, Plant Ecology
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