Grand Challenges in Acoustic Remote Sensing: Discoveries to Support a Better Understanding of Our Changing Planet

Pijanowski, Bryan C.; Brown, Craig J.

doi:10.3389/frsen.2021.824848

Cited by 8 publications

(2 citation statements)

References 103 publications

(101 reference statements)

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“…Even without consensus on validation of acoustic indices using classical biodiversity data (Alcocer et al, 2022), assessing differences between ecosystem conditions and biomes in terms of acoustic composition and rhythm seems promising (Gottesman et al, 2020). Still, considerable challenges remain, including standardisation of acoustic measurements, calibration across ecosystems and data sharing practices (Pijanowski & Brown, 2022). Many PAM efforts to date intend for collected recordings to eventually contribute to global efforts to establish ecosystem baselines for future conservation assessment and management.…”

Section: Applications and Future Directionsmentioning

confidence: 99%

Passive acoustic monitoring provides a fresh perspective on fundamental ecological questions

et al. 2023

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1. Passive acoustic monitoring (PAM) has emerged as a transformative tool for applied ecology, conservation and biodiversity monitoring, but its potential contribution to fundamental ecology is less often discussed, and fundamental PAM studies tend to be descriptive, rather than mechanistic.2. Here, we chart the most promising directions for ecologists wishing to use the suite of currently available acoustic methods to address long-standing fundamental questions in ecology and explore new avenues of research. In both terrestrial and aquatic habitats, PAM provides an opportunity to ask questions across multiple spatial scales and at fine temporal resolution, and to capture phenomena or species that are difficult to observe. In combination with traditional approaches to data collection, PAM could release ecologists from myriad limitations that have, at times, precluded mechanistic understanding.3. We discuss several case studies to demonstrate the potential contribution of PAM to biodiversity estimation, population trend analysis, assessing climate change impacts on phenology and distribution, and understanding disturbance and recovery dynamics. We also highlight what is on the horizon for PAM, in terms of near-future technological and methodological developments that have the potential to provide advances in coming years.4. Overall, we illustrate how ecologists can harness the power of PAM to address fundamental ecological questions in an era of ecology no longer characterised by data limitation.Recent developments in data acquisition, storage and processing have led to Passive acoustic monitoring (PAM; Box 1) approaches being increasingly adopted for a wide array of ecological applications and conservation management (

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Section: Applications and Future Directionsmentioning

confidence: 99%

Passive acoustic monitoring provides a fresh perspective on fundamental ecological questions

et al. 2023

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“…LIDAR, eDNA, etc.) to provide a complete analysis of ecosystem health (Pijanowski & Brown, 2022). (Kamruzzaman et al, 2018;Sharma et al, 2020).…”

Section: Acous Tic Me a Surements Of Pl Ant Fun C Tional Tr Aitsmentioning

confidence: 99%

Application of active acoustic transducers in monitoring and assessment of terrestrial ecosystem health—A review

Rostami

Nansen

2022

Methods Ecol Evol

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1. Urbanization, agricultural production, natural resource extractions and climate change are global drivers of terrestrial ecosystem degradation and decline in ecosystem health. Assessing vegetation structures provides valuable direct and indirect information on biodiversity and ecosystem health, since plant communities govern terrestrial ecosystem functions and overall biodiversity. 2. A growing body of literature supports the hypothesis that acoustic profiling and characterization of soundscapes may reveal natural patterns and ecosystem responses to environmental disturbances. Although assessments of ecosystem soundscapes are a promising tool for ecological monitoring, the influence of vegetation structure on acoustic indices remains largely unaddressed. An effective non-invasive approach to monitoring ecosystem health includes use of active acoustic transducers, which convert mechanical/acoustic energy into electrical energy and visa-versa.3. This article reviews and discusses possible applications (and also constraints) of active acoustic transducers in monitoring and assessments of terrestrial ecosystem health. Specifically, this article includes a brief introduction to the basic principles of sound and types of active acoustic transducers. Moreover, we provide reviews of common uses of active acoustic transducers in assessing plant structures and plant functional traits.4. We emphasize that active acoustic transducers can be used to analyse plant characteristics in a remote, scalable, non-invasive and cost-effective manner to characterize overall terrestrial ecosystem health. Suggestions and recommendations for future research and management directions that may facilitate applications of acoustic transducers to natural terrestrial landscapes are provided.

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Spatial dynamics of soundscapes and biodiversity in a semi-arid landscape

et al. 2022

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Grand Challenges in Acoustic Remote Sensing: Discoveries to Support a Better Understanding of Our Changing Planet

Cited by 8 publications

References 103 publications

Passive acoustic monitoring provides a fresh perspective on fundamental ecological questions

Passive acoustic monitoring provides a fresh perspective on fundamental ecological questions

Application of active acoustic transducers in monitoring and assessment of terrestrial ecosystem health—A review

Spatial dynamics of soundscapes and biodiversity in a semi-arid landscape

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