Worldwide Soundscapes: a synthesis of passive acoustic monitoring across realms

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 14, 2024

Abstract The urgency for remote, reliable, and scalable biodiversity monitoring amidst mounting human pressures on climate ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), but there been no comprehensive overview of its coverage across realms. We present metadata from 358 datasets recorded since 1991 above land water constituting the first global synthesis sampling spatial, temporal, ecological scales. compiled summary statistics (sampling locations, deployment schedules, focal taxa, recording parameters) used eleven case studies to assess trends biological, anthropogenic, geophysical sounds. Terrestrial is spatially denser (42 sites/M·km 2 ) than aquatic (0.2 1.3 oceans freshwater) with only one subterranean dataset. Although diel lunar cycles are well-covered all realms, marine (65%) comprehensively sample seasons. Across biological sounds show contrasting activity, while declining distance equator anthropogenic activity. PAM can thus inform phenology, macroecology, conservation studies, representation be improved by widening terrestrial taxonomic breadth, expanding high seas, increasing spatio-temporal replication freshwater habitats. Overall, shows considerable promise support efforts.

Language: Английский

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Advancements in preprocessing, detection and classification techniques for ecoacoustic data: A comprehensive review for large-scale Passive Acoustic Monitoring

Expert Systems with Applications, Journal Year: 2024, Volume and Issue: 252, P. 124220 - 124220

Published: May 16, 2024

Computational ecoacoustics has seen significant growth in recent decades, facilitated by the reduced costs of digital sound recording devices and data storage. This progress enabled continuous monitoring vocal fauna through Passive Acoustic Monitoring (PAM), a technique used to record analyse environmental sounds study animal behaviours their habitats. While collection ecoacoustic become more accessible, effective analysis this information understand monitor populations remains major challenge. survey paper presents state-of-the-art approaches, with focus on applicability large-scale PAM. We emphasise importance PAM, as it enables extensive geographical coverage monitoring, crucial for comprehensive biodiversity assessment understanding ecological dynamics over wide areas diverse approach is particularly vital face rapid changes, provides insights into effects these changes broad array species ecosystems. As such, we outline most challenging tasks, including pre-processing, visualisation, labelling, detection, classification. Each evaluated according its strengths, weaknesses overall suitability recommendations are made future research directions.

Language: Английский

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What Do We Mean by “Soundscape”? A Functional Description

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: June 15, 2022

The concept of soundscape was originally coined to study the relationship between humans and their sonic environment. Since then, several definitions soundscapes have been proposed based on musical, acoustical ecological perspectives. However, causal mechanisms that underlie often overlooked. As a consequence, term “soundscape” is frequently used in an ambiguous way, alternatively pointing objective realities or subjective percepts. Through interdisciplinary review, we identified main biotic abiotic factors condition non-anthropogenic terrestrial soundscapes. A source-filter approach describe sound sources, propagation phenomena receiver’s characteristics. Interdisciplinary information cross-referenced order define relationships factors, sources filters. Those associated references were organized into functional block diagram. This representation question different uses meanings found literature. Three separate categories then suggested: distal soundscape, proximal perceptual soundscape. Finally, practical examples these described, relation new systemic should help ecoacousticians, bioacousticians, psychoacousticians environmental managers better understand protect natural areas more significant way.

Language: Английский

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Physics‐based model to predict the acoustic detection distance of terrestrial autonomous recording units over the diel cycle and across seasons: Insights from an Alpine and a Neotropical forest

Methods in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 14(2), P. 614 - 630

Published: Nov. 15, 2022

1. Passive acoustic monitoring of biodiversity is growing fast, as it offers an alternative to traditional aural point count surveys, with the possibility deploy long-term surveys in large and complex natural environments. However, there still a clear need evaluate how frequency-and distancedependent attenuation sound well ambient level impact detection distance soniferous species environments over diel cycles across seasons. This great importance avoid pseudoreplication provide relevant indicators, including richness, abundance density. 2. To address issue distance, we tested field-based protocol Neotropical rainforest (French Guiana, France) Alpine coniferous forest (Jura, France). standardized repeatable method consists recording session directly followed by experiment using calibrated white noise broadcast at different positions along 100 m linear transect. We then used laws reveal basic physics behind propagation attenuation. 3. demonstrate that habitat two kinds forests can be modelled exponential decay law dependence on frequency distance. also report attenuation, first approximation, summarized single value, coefficient habitat. 4. Finally, show predicted knowing contribution each factor, habitat, pressure amplitude bandwidth characteristics transmitted sound. 1 mostly depends may vary factor up 5 cycle These results reinforce take into account variation when performing passive producing reliable indicators.

Language: Английский

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Using acoustics and artificial intelligence to monitor pollination by insects and tree use by woodpeckers

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 838, P. 155883 - 155883

Published: May 13, 2022

Language: Английский

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LEAVES: An open-source web-based tool for the scalable annotation and visualisation of large-scale ecoacoustic datasets using cluster analysis

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103026 - 103026

Published: Feb. 1, 2025

Language: Английский

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From valleys to peaks: characterizing soundscapes in the Northern European Limestone Alps

Landscape Ecology, Journal Year: 2025, Volume and Issue: 40(5)

Published: April 29, 2025

Language: Английский

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Passive Acoustic Monitoring as a Tool to Investigate the Spatial Distribution of Invasive Alien Species

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(18), P. 4565 - 4565

Published: Sept. 13, 2022

Invasive alien species (IAS) are a threat to biodiversity and ecosystem function worldwide. Unfortunately, researchers, agencies, other management groups face the unresolved challenge of effectively detecting monitoring IAS at large spatial temporal scales. To improve detection soniferous IAS, we introduced pipeline for large-scale passive acoustic (PAM). Our main goal was illustrate how PAM can be used rapidly provide baseline information on IAS. that aim, collected data across Puerto Rico from March June 2021 single-species occupancy models investigate distribution in archipelago assess peak vocal activity. Overall, detected 16 (10 birds, 3 mammals, frogs) 79 native an extensive set with 1,773,287 1-min recordings. Avian activity peaked early morning (between 5 a.m. 7 a.m.), while amphibians between 1 Occupancy probability ranged 0.002 0.67. In general, elevation forest cover older than 54 years were negatively associated occupancy, corroborating our expectation occurrence is related high levels human disturbance present higher probabilities places characterized by more intense activities. The work presented here demonstrates workable solution vocally active over area provides reproducible workflow extended allow continued longer timeframes.

Language: Английский

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Similarity visualization of soundscapes in ecology and music

Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 12

Published: Feb. 7, 2024

The concept of a soundscape is found in both ecology and music studies. Nature soundscapes compositions are analyzed by disciplines, respectively, to understand their biological diversity ecosystem functioning interpret compositional structure. A major challenge for disciplines visualizing the information embedded large variety share it with different audiences, from non-professionals experts. To analyze soundscapes, have independently developed similarity visualizations. However, no attempt has been made yet combine these two fields research improve our ecological musical perception environmental sounds through shared analysis methods. In this paper, we introduce new visualization tool, chord diagram (SCD), circular representation method that can be applied any type soundscape, either ecoacoustics or electroacoustic Our approach consists spectral similarities between predefined sound segments based on computation β- acoustic index automatic clustering. SCDs were tested ecoacoustic forest databases compositions. performant identification specific events highlighted known diel periods nature written parts This tool allows us easily decipher structure data. could promote knowledge preservation. study opens way investigating at interface music, bringing together science arts.

Language: Английский

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Soundscape for urban ecological security evaluation

Basic and Applied Ecology, Journal Year: 2024, Volume and Issue: 76, P. 50 - 57

Published: Feb. 22, 2024

The security of the Earth system has been extensively discussed through concept planetary boundaries, which hypothesizes Anthropocene as crisis for pushing environmental variables beyond safe limits. Cities, burgeoning population centers, warrant heightened attention to issues surrounding boundaries and ecological security. While groundwork laid change detection, acoustic or soundscape perspective is rarely considered. This paper presents abundant empirical evidence supporting feasibility leveraging a valuable lens exploring ecosystem structures, functions, their contribution human well-being. Particularly, it proposes spatialized maps practical tools implement this innovative perspective. We elaborate on two key aspects: (i) reflection evolution, enabling evaluation interactions, ecosystem's functions; (ii) attribution providing cultural services, allowing assessment its impact health. Consequently, we propose paradigms: "security in soundscape" soundscape", thereby initiated "soundscape security". Furthermore, outline generalized pathways: monitoring, encompassing long-term strategies real-time tracking perception, involving detailed surveys investigate perception public participatory sensing large-scale services. argue that integrating considerations holds promise urban initiatives pursuit sustainable cities. Moving forward, collective efforts among academics are crucial establish widely accepted protocols maximize value

Language: Английский

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