What question did this study set out to answer?

Synthesize global passive acoustic monitoring efforts across terrestrial, marine, freshwater, and subterranean realms to assess its capacity as a planetary-scale biodiversity monitoring framework.

May 1, 2025ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam)Open Access

Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

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Authors

KDKevin DarrasWestlake University RRRodney A. RountreeUniversity of Victoria SWSteven L. Van WilgenburgEnvironment and Climate Change Canada

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Implication

Global synthesis reveals spatial and seasonal disparities in passive acoustic monitoring across realms, highlighting gaps in aquatic coverage and subterranean biodiversity tracking.

Key Points

Synthesize global passive acoustic monitoring efforts across terrestrial, marine, freshwater, and subterranean realms to assess its capacity as a planetary-scale biodiversity monitoring framework.
Aggregated metadata from 416 datasets comprising 12,343 sites from 1991 to present across terrestrial, marine, freshwater, and subterranean environments.
Evaluated spatial, temporal, and taxonomic coverage and analyzed acoustic trends across 168 recordings spanning 12 ecosystems.
Terrestrial sampling density was 46 sites per million square kilometers (Mkm²), compared to 1.8 sites/Mkm² in freshwater, 0.3 sites/Mkm² in marine environments, and only two subterranean datasets.
Marine datasets most frequently sampled all seasons (55%), whereas diel and lunar cycles were generally well represented across all realms.
Biological sound levels decreased with increasing distance from the Equator, varied distinctively across diel cycles by ecosystem, and showed a negative correlation with anthropogenic noise.

Cite This Study

Darras et al. (2025) studied this question.

synapsesocial.com/papers/69dd543227c48be1bb40cf63 https://doi.org/10.1111/geb.70021

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Implication

Global synthesis reveals spatial and seasonal disparities in passive acoustic monitoring across realms, highlighting gaps in aquatic coverage and subterranean biodiversity tracking.

Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

Discussion

Member takes

Implication

Key Points

Cite This Study

Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

Discussion

Member takes

Implication

Key Points

Cite This Study

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