Amazonian soundscapes: unravelling the secrets of insect acoustic niches in diverse habitats DOI Creative Commons
Leandro Do Nascimento, Cristian Pérez‐Granados,

Janderson Rodrigues Alencar

et al.

Published: Nov. 28, 2023

Insects are the most diverse animal taxon on Earth and play a key role in ecosystem functioning. However, they often neglected from biodiversity surveys due to difficulties of monitoring this small hyper-diverse taxon. With technological advancements biomonitoring analytical methods, these shortcomings may finally be addressed. Here, we performed passive acoustic at 141 sites (eight habitats) Amazon advance insect using methods. We first describe frequency range occupied by three soniferous groups (cicadas, crickets, katydids) calculate Acoustic Evenness Index (AEI). Then, assess temporal spatial variations AEI among categories, investigate relationship vegetation structure variables for each category. Overall, crickets lower narrower bands than cicadas katydids. values varied categories across space time. There was higher activity before sunrise recorded pastures. Canopy cover positively associated with crickets' but not Our findings contribute better understanding time, habitat, shaping within Amazonian ecosystem.

Language: Английский

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

38
The Acoustic Index User's Guide: A practical manual for defining, generating and understanding current and future acoustic indices DOI Creative Commons
Tom Bradfer‐Lawrence,

Brad Duthie,

Carlos Abrahams

et al.

Methods in Ecology and Evolution, Journal Year: 2024, Volume and Issue: unknown

Published: May 28, 2024

Abstract Ecoacoustics, the study of environmental sound, is a rapidly growing discipline offering ecological insights at scales ranging from individual organisms to whole ecosystems. Substantial methodological developments over last 15 years have streamlined extraction information audio recordings. One widely used set methods are acoustic indices, which offer numerical summaries spectral, temporal and amplitude patterns in Currently, specifics each index's background, methodology soundscape they designed summarise, spread across multiple sources. Critically, details index calculation sometimes scarce, making it challenging for users understand how values generated. Discrepancies understanding can lead misuse indices or reporting spurious results. This hinders inference, replicability discourages adoption these tools conservation ecosystem monitoring, where might otherwise provide useful insight. Here we present Acoustic Index User's Guide—an interactive RShiny web app that defines deconstructs eight most commonly facilitate consistent application discipline. We break calculations down into easy‐to‐follow steps better enable practical critical interpretation indices. demonstrate typical using suite 91 example recordings: 66 real‐world soundscapes terrestrial, aquatic subterranean systems around world, 25 synthetic files demonstrating archetypal patterns. Our figures signpost specific likely be reflected indices' values. living resource; additional will added future through collaboration with authors pre‐existing new The also serves as best‐practice template required when publishing so widest possible uptake their In turn, improved aid effective hypothesis generation, research, monitoring management.

Language: Английский

Citations

10
Time and habitat structure shape insect acoustic activity in the Amazon DOI
Leandro Do Nascimento, Cristian Pérez‐Granados, Janderson Batista Rodrigues Alencar

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1904)

Published: May 5, 2024

Insects are the most diverse animal taxon on Earth and play a key role in ecosystem functioning. However, they often neglected by ecological surveys owing to difficulties involved monitoring this small hyper-diverse taxon. With technological advances biomonitoring analytical methods, these shortcomings may finally be addressed. Here, we performed passive acoustic at 141 sites (eight habitats) investigate insect activity Viruá National Park, Brazil. We first describe frequency range occupied three soniferous groups (cicadas, crickets katydids) calculate evenness index (AEI). Then, assess how AEI varies spatially temporally among habitat types, relationship between vegetation structure variables for each category. Overall, lower narrower bands than cicadas katydids. values varied categories across space time. The highest occurred before sunrise lowest was recorded pastures. Canopy cover positively associated with cricket but not Our findings contribute better understanding of time, shaping within Amazonian ecosystems. This article is part theme issue ‘Towards toolkit global biodiversity monitoring’.

Language: Английский

Citations

7
Understanding acoustic indices as multi-taxa biodiversity and habitat quality indicators DOI Creative Commons
Saskia Dröge, Thio Rosin Fulgence, Kristina Osen

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 169, P. 112909 - 112909

Published: Dec. 1, 2024

Language: Английский

Citations

4
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
Biodiversity, function, and change of the tropical rainforests of Borneo DOI
Natasha L. M. Mannion, Laura Braunholtz, Marion Pfeifer

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 457 - 481

Published: Jan. 1, 2025

Language: Английский

Citations

0
From valleys to peaks: characterizing soundscapes in the Northern European Limestone Alps DOI Creative Commons
Manuel Ebner, Ulrike Tappeiner, Uta Schirpke

et al.

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

Published: April 29, 2025

Language: Английский

Citations

0
Short-time acoustic indices for monitoring urban-natural environments using artificial neural networks DOI Creative Commons
Diego Espejo, Víctor Vargas, Rhoddy Viveros-Muñoz

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111775 - 111775

Published: Feb. 28, 2024

Urban-natural environments, proximal to rapidly urbanizing cities, provide essential ecosystem functions that benefit both city residents and ecological communities. With escalating urbanization, the resilience of these ecosystems is being progressively challenged, highlighting need for robust monitoring mechanisms. Acoustic has emerged as an unobtrusive method evaluate status capitalizing on indicators reflect landscape features specific acoustic events. Despite potentially offering significant insights, this approach generates a large volume data, introducing complexities in subsequent analyses. To mitigate this, we propose integrating artificial neural networks with indices enhance data analysis. Our emphasizes usefulness short-time indices, computed over finite-duration analysis windows, polyphonic sound event detection accuracy. Empirical results support performance our approach, registering F1-Score error rate 0.614. Overall, study delineates novel paradigm geared towards enhancing or preserving biological diversity urban-natural environments areas population growth urban development.

Language: Английский

Citations

3
Soundscape Analytics: A New Frontier of Knowledge Discovery in Soundscape Data DOI
Bryan C. Pijanowski,

Francisco Rivas Fuenzalida,

Subham Banerjee

et al.

Current Landscape Ecology Reports, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 21, 2024

Language: Английский

Citations

3