Results 71 to 80 of about 4,775 (196)

Automated bioacoustic identification of species [PDF]

Anais da Academia Brasileira de Ciências, 2004
Research into the automated identification of animals by bioacoustics is becoming more widespread mainly due to difficulties in carrying out manual surveys. This paper describes automated recognition of insects (Orthoptera) using time domain signal coding and artificial neural networks.
openaire   +5 more sources

Listening to tuna: Acoustic characterization of captive juvenile yellowfin tuna (Thunnus albacares)

Journal of Fish Biology, EarlyView.
Abstract The effectiveness of passive acoustic monitoring (PAM) for studying marine biodiversity highly relies on comprehensive libraries of species‐specific sounds. While sound production is well‐documented in reef and freshwater fishes, the acoustic behaviour of ecologically and economically vital pelagic species like tunas still remains largely ...
Regi Fiji Anggawangsa, Frédéric Bertucci, Ignatius Tri Hargiyatno, Jhon Harianto Hutapea, Ananto Setiadi, Gunawan Gunawan, Wudianto Wudianto, Fayakun Satria, Marc Soria, Laurent Dagorn, Manuela Capello   +10 more
wiley   +1 more source

Bioacoustics and rhythm

Abstract Bioacoustics is an interdisciplinary science; it concerns aspects of communication through sound in animals, including humans. Within language evolution research, bioacoustics is particularly relevant to address questions about the origins and evolution of speech.
Valente, Daria, Ravignani, Andrea
openaire   +3 more sources

Management of acoustic metadata for bioacoustics

Ecological Informatics, 2016
AbstractRecent expansion in the capabilities of passive acoustic monitoring of sound-producing animals is providing expansive data sets in many locations. These long-term data sets will allow the investigation of questions related to the ecology of sound-producing animals on time scales ranging from diel and seasonal to inter-annual and decadal ...
Marie A. Roch, Heidi Batchelor, Simone Baumann-Pickering, Catherine L. Berchok, Danielle Cholewiak, Ei Fujioka, Ellen C. Garland, Sean Herbert, John A. Hildebrand, Erin M. Oleson, Sofie Van Parijs, Denise Risch, Ana Sirovic, Melissa S. Soldevilla   +13 more
openaire   +4 more sources

Going silent? Evidence for independent losses of acoustic communication in tree crickets (Insecta, Orthoptera, Grylloidea, Oecanthidae)

Journal of Systematics and Evolution, EarlyView.
Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos, Jorge Alves Audino, Silvio Shigueo Nihei, Laure Desutter‐Grandcolas   +3 more
wiley   +1 more source

Bioacustica e ecoacustica applicate al monitoraggio e alla gestione ambientale - Bioacoustics and ecoacoustics applied to environmental monitoring and management

Rivista Italiana di Acustica, 2015
Bioacoustics and ecoacoustics are emerging tools in biodiversity science and conservation: from the recognition and monitoring of individual species through to soundscape analysis and description, they provide new insights and approaches for science ...
Gianni Pavan, Andrea Favaretto, Bruna Bovelacci, Dino Scaravelli, Stefano Macchio, Hervè Glotin   +5 more
doaj  

Interview-based sighting history to investigate the historical range and dynamics of dugongs in China

Royal Society Open Science
The dugong (Dugong dugon) is the first marine megafauna to be declared functionally extinct in China, yet its historical range and extinction dynamics remain poorly understood.
Mingli Lin, Yuanyuan Li, Yifei Cai, Haozhong Chen, Zirui You, Ouhoud Soufiane, Songhai Li   +6 more
doaj   +1 more source

Group‐Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R‐Type) Killer Whales Orcinus orca ater

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long‐term
Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova   +5 more
wiley   +1 more source

Seasonal and Diel Acoustic Occurrence of Sei Whales in Oregon, USA

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The behavior, distribution, and life history of sei whales (Balaenoptera borealis) are largely unknown in the North Pacific. We analyzed data from three bottom‐mounted acoustic recorders deployed 25 (shelf; depth = 300 m), 45 (slope; depth = 630 m), and 65 (abyssal; depth = 2860 m) nautical miles off of Newport, Oregon, USA that recorded ...
Mariam Alsaid, Leigh G. Torres, Holger Klinck, Dimitri Ponirakis, Kathleen M. Stafford, Dawn R. Barlow   +5 more
wiley   +1 more source

Design Patterns for the Development and Implementation of Bioacoustic Deep Learning Recognizers

Ecology and Evolution, Volume 16, Issue 8, August 2026.
This paper presents a set of design patterns for developing and integrating Convolutional Neural Network (CNN) recognizers in bioacoustic monitoring programs. Using a western toad case study, we illustrate solutions to common challenges in model development and workflow integration. These patterns provide a practical framework to improve the efficiency,
Gavin Hurd, Robin Baron, Jesse Whittington   +2 more
wiley   +1 more source