A meta-analysis of the effects in alpha acoustic indices DOI Open Access

Yanyi Wang,

Yimei Zhang, Canwei Xia

et al.

Biodiversity Science, Journal Year: 2023, Volume and Issue: 31(1), P. 22369 - 22369

Published: Jan. 1, 2023

Background: Many animals such as mammals, birds, amphibians, fishes and arthropods, produce sounds when moving, communicating or sensing their environment.Building upon the rich legacies of bioacoustics animal communication, acoustic properties from soundscape are used to monitor assess changes in communities related environments.During past decade, many indices have been developed can be divided into two categories, namely alpha beta indices.Alpha reflect information recording while focus on comparison differences between different recordings.There far more empirical studies application than indices.However, patterns contradictory.Before applied widely, it is necessary understand better how well they environments monitored.Aims: To make general inferences mixed evidence, associations animaldiversity, habitat quality, activity were quantitatively reviewed based meta-analytic approach.Methods: Both key word searches cross-reference conducted, 2,845 pairs data other variables collected 136 references.For which 50 times, direction was tested by sign test.Then, maximum likelihood method employed estimate probability density function summary effect (i.e., correlation coefficient index variable).Lastly, coefficients calculated function. Results & Conclusion:Eight commonly involved study, complexity (ACI), entropy (H) (including closely indices: temporal spectral index), bioacoustic (BI), normalized difference (NDSI), diversity (ADI), evenness (AEI), richness (AR), number peaks (NP).Among these indices, ACI most frequently positively with diversity, activity.The highest association appeared at relationship terrestrial activity, mean size 0.53.Besides, always trivial, sizes generally less 0.30.The only significantly negative occurred AEI -0.18.The robustness main results thoroughly analyzed, strengths weaknesses monitoring through also discussed.This study expected provide a guideline for selection future research.

Language: Английский

Emerging technologies revolutionise insect ecology and monitoring DOI Creative Commons
Roel van Klink, Tom August, Yves Bas

et al.

Trends in Ecology & Evolution, Journal Year: 2022, Volume and Issue: 37(10), P. 872 - 885

Published: July 8, 2022

Insects are the most diverse group of animals on Earth, but their small size and high diversity have always made them challenging to study. Recent technological advances potential revolutionise insect ecology monitoring. We describe state art four technologies (computer vision, acoustic monitoring, radar, molecular methods), assess advantages, current limitations, future potential. discuss how these can adhere modern standards data curation transparency, implications for citizen science, integration among different monitoring programmes technologies. argue that they provide unprecedented possibilities it will be important foster international via collaboration.

Language: Английский

Citations

179
Using acoustic indices in ecology: Guidance on study design, analyses and interpretation DOI Creative Commons
Tom Bradfer‐Lawrence, Camille Desjonquères, Alice Eldridge

et al.

Methods in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 14(9), P. 2192 - 2204

Published: Aug. 10, 2023

Abstract The rise of passive acoustic monitoring and the rapid growth in large audio datasets is driving development analysis methods that allow ecological inferences to be drawn from data. Acoustic indices are currently one most widely applied tools ecoacoustics. These numerical summaries sound energy contained digital recordings relatively straightforward fast calculate but can challenging interpret. Misapplication misinterpretation have produced conflicting results led some question their value. To encourage better use indices, we provide nine points guidance support good study design, interpretation. We offer practical recommendations for both whole soundscapes individual taxa species, point emerging trends ecoacoustic analysis. In particular, highlight critical importance understanding links between soundscape patterns indices. insights into state organisms, populations, ecosystems, complementing other research techniques. Judicious selection, appropriate application thorough interpretation existing vital bolster robust developments ecoacoustics biodiversity monitoring, conservation future research.

Language: Английский

Citations

46
Soundscapes and deep learning enable tracking biodiversity recovery in tropical forests DOI Creative Commons
Jörg Müller, Oliver Mitesser,

H. Martin Schaefer

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 17, 2023

Tropical forest recovery is fundamental to addressing the intertwined climate and biodiversity loss crises. While regenerating trees sequester carbon relatively quickly, pace of remains contentious. Here, we use bioacoustics metabarcoding measure post-agriculture in a global hotspot Ecuador. We show that community composition, not species richness, vocalizing vertebrates identified by experts reflects restoration gradient. Two automated measures - an acoustic index model bird composition derived from independently developed Convolutional Neural Network correlated well with (adj-R² = 0.62 0.69, respectively). Importantly, both reflected non-vocalizing nocturnal insects via metabarcoding. such monitoring tools, based on new technologies, can effectively monitor success recovery, using robust reproducible data.

Language: Английский

Citations

40
Poor performance of acoustic indices as proxies for bird diversity in a fragmented Amazonian landscape DOI
Thiago Bicudo, Diego Llusia, Marina Anciães

et al.

Ecological Informatics, Journal Year: 2023, Volume and Issue: 77, P. 102241 - 102241

Published: July 29, 2023

Language: Английский

Citations

18
Land-use intensity and landscape structure drive the acoustic composition of grasslands DOI

Sandra Müller,

Martin M. Goßner, Caterina Penone

et al.

Agriculture Ecosystems & Environment, Journal Year: 2022, Volume and Issue: 328, P. 107845 - 107845

Published: Jan. 5, 2022

Language: Английский

Citations

22
Sacred forest biodiversity conservation: A meta‐analysis DOI Creative Commons
Megan K. Sullivan, Luke Browne, Juan Carlos Peñagos Zuluaga

et al.

Conservation Science and Practice, Journal Year: 2023, Volume and Issue: 6(1)

Published: Dec. 21, 2023

Abstract Sacred forests offer co‐benefits of protecting both cultural traditions and forested areas. However, sacred forests' contribution to biodiversity conservation is often undervalued. Several reviews discuss in forests, but large‐scale studies that quantify the effect on are scarce. Many effectiveness limited single‐location censuses or lack comparisons against non‐sacred serve as controls. To impact conservation, we conducted a global meta‐analysis compares with nearby (i.e., control areas). Using 35 from 17 different countries, found harbored similar levels When comparing taxonomic groups, positive benefits compared were higher for plants non‐plant taxa. Our provides quantitative evidence can be effective areas conservation. Based our results, suggest researchers interested forest compare other land use types, collect standardized metadata comparisons, extend monitoring include more preserve ecosystem function, provide social benefits, play role fighting climate change, should not overlooked.

Language: Английский

Citations

12
Testing the soundscape response to silvicultural interventions in a controlled before-and-after experiment DOI Creative Commons
Julia Rothacher, Oliver Mitesser,

Sandra Müller

et al.

Biological Conservation, Journal Year: 2025, Volume and Issue: 306, P. 111116 - 111116

Published: April 8, 2025

Language: Английский

Citations

0
Exploring spatio-temporal variation in soundscape saturation of an African tropical forest landscape DOI Creative Commons
Joeri A. Zwerts, J. Wiegers, Elisabeth H. M. Sterck

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 137, P. 108712 - 108712

Published: March 3, 2022

Monitoring biodiversity calls for efficient monitoring techniques. Soundscape analysis is a landscape-level approach to acoustic whereby indices are calculated as proxies based on all sounds occurring in landscape, i.e. soundscape. However, it not fully understood what the influence of environmental, anthropogenic and temporal heterogeneity soundscapes mean terms species diversity. Here, we use soundscape saturation, proxy diversity which calculates degree niches. We study how saturation responds forest management seasonality tropical forests Gabon, while taking into account distance rivers, human accessibility, signs hunting, elevation slope. To contribution medium large mammals relate abundance several animal guilds estimated with camera trap data. was higher multi-use vs. logging concessions, rainy reason dry season, proximity rivers access points. Elevation, slope, hunting were less important covariates. did find strong evidence relationship between mammal derived from traps. The lack this highlights opportunity joint eco-acoustics trapping due complementary coverage. Our provides first African combine considered useful additional index quantifying across range land-use types. Future studies may aim improve inference site-specific interpretation levels by investigating species-specific contributions to, spatiotemporal variation in, activity.

Language: Английский

Citations

16
Research on spatiotemporal variation characteristics of soundscapes in a newly established suburban forest park DOI

Qi Bian,

Cheng Wang, Zhenkai Sun

et al.

Urban forestry & urban greening, Journal Year: 2022, Volume and Issue: 78, P. 127766 - 127766

Published: Oct. 25, 2022

Language: Английский

Citations

15
Soundscape for urban ecological security evaluation DOI Creative Commons
Jingyi Wang, Chunming Li,

Ziyan Yao

et al.

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

Citations

3