Bioacoustics-The International Journal of Animal Sound and Its Recording最新文献_第6页

Adaptation of dolphins’ (Tursiops truncatus) location signals when searching for and identifying objects hidden by sea sediments 海豚在寻找和识别海洋沉积物中隐藏的物体时对位置信号的适应

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-11-15 DOI: 10.1080/09524622.2021.1994467

K. A. Zaitseva, V. Korolev, A. Akhi, A. A. Akhi

引用次数: 0

Development and test of a bat calls detection and classification method based on convolutional neural networks 一种基于卷积神经网络的蝙蝠叫声检测与分类方法的开发与测试

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-27 DOI: 10.1080/09524622.2021.1978863

Y. Paumen, M. Mälzer, S. Alipek, J. Moll, B. Lüdtke, H. Schauer-Weisshahn

{"title":"Development and test of a bat calls detection and classification method based on convolutional neural networks","authors":"Y. Paumen, M. Mälzer, S. Alipek, J. Moll, B. Lüdtke, H. Schauer-Weisshahn","doi":"10.1080/09524622.2021.1978863","DOIUrl":"https://doi.org/10.1080/09524622.2021.1978863","url":null,"abstract":"ABSTRACT Automated acoustic monitoring methods are frequently used to survey bat activity around wind turbines. The algorithms are often based on spectral features or threshold values of the recordings. Due to the generality of these features, a lot of recordings are noise, making manual analysis and labelling of the recordings time consuming. In this paper, we present an approach based on convolutional neural networks to detect and classify bat calls respectively. Recordings are converted to Mel-frequency cepstral coefficients (MFCCs), which are then fed as an image into the convolutional neural networks (CNNs) for classification. A dataset consisting of 43585 recordings gathered at 5 m height was used to train and test this method. An accuracy of 99.7% was achieved on a test set for the binary classification of noise and bat calls. For the species classification, this approach achieved an accuracy of 96%. Both networks, trained on data gathered at 5 m, were also tested on recordings gathered at heights of 33 m, 65 m and 95 m. In case of the binary classification task, the results showed an increased rate of misclassifications among noise recordings. For species classification, there was a higher amount of misclassifcations among all species.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46506239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Amplification of frog calls by reflective leaf substrates: implications for terrestrial and arboreal species 反射叶片基质对青蛙叫声的放大:对陆生和树栖物种的影响

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-20 DOI: 10.1080/09524622.2021.1978319

Matías I. Muñoz, W. Halfwerk

{"title":"Amplification of frog calls by reflective leaf substrates: implications for terrestrial and arboreal species","authors":"Matías I. Muñoz, W. Halfwerk","doi":"10.1080/09524622.2021.1978319","DOIUrl":"https://doi.org/10.1080/09524622.2021.1978319","url":null,"abstract":"ABSTRACT Signal detection is a fundamental requirement for any communicative interaction. Acoustic signals, however, experience amplitude losses during their transmission through the environment, reducing their detection range. Displaying from sites that increase the amplitude of the sound produced, such as cavities or some reflective surfaces, can improve the detectability of signals by distant receivers. We measured the effect of leaf calling sites on the calls of an arboreal (Hyalinobatrachium fleischmanni) and a leaf-litter specialist (Silverstoneia flotator) frog species. We collected the leaves where males of both species were observed calling, and conducted playback experiments to measure their effect on the amplitude of frog calls. Overall, the leaves used by H. fleischmanni and S. flotator were of similar dimensions, and amplified the calls of each species by about 5.0 and 2.5 dB, respectively. The degree of call amplification was unrelated to leaf dimensions or the position of the frogs on the leaves, but explained by the different frequency content of the calls of each species. We suggest that amplification of frogs calls by leaves could represent either a benefit or impose costs for arboreal and terrestrial species, which may depend on the spatial location of intended and unintended receivers.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41310143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Highly diversified circadian rhythms in the calling activity of eneopterine crickets (Orthoptera: Grylloidea: Gryllidae) from Southeast Asia 东南亚蟋蟀(直翅目:灰蟋蟀总科:灰蟋蟀科)叫声活动中高度多样化的昼夜节律

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-20 DOI: 10.1080/09524622.2021.1973562

M. Tan, T. Robillard

{"title":"Highly diversified circadian rhythms in the calling activity of eneopterine crickets (Orthoptera: Grylloidea: Gryllidae) from Southeast Asia","authors":"M. Tan, T. Robillard","doi":"10.1080/09524622.2021.1973562","DOIUrl":"https://doi.org/10.1080/09524622.2021.1973562","url":null,"abstract":"ABSTRACT Circadian rhythms are endogenously generated and self-sustaining oscillations that occur at a 24 hours scale and are ubiquitous amonganimals.. Animals rely on their circadian clocks to anticipate cyclical external environmental oscillations to find mates and reproduce, among other activities. Hence, animals that sing to attract mates can modulate their calling activity across the circadian cycle and species can exhibit different circadian rhythms in their calling activity. Crickets are among the most studied sound-producing animals, but concerted efforts to examine their circadian rhythms in their calling activity across multiple species remain limited for Southeast Asian species. Here, we recorded the calls of eleven Southeast Asian species of Eneopterinae – known for their diverse calling songs – across the phylogeny and compared their circadian rhythms based on the number of echemes and amount of sound produced. Using standardised ex-situ recordings to produce precise data about the circadian patterns, we verified sporadic observations about their calling activity made in the field. We also found that the eneopterines exhibit highly diversified circadian rhythms in calling activity, ranging from strictly diurnal and nocturnal calling to complex calling patterns with multiple peaks across day and/or night.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44206142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

I beg your pardon? Acoustic behaviour of a wild solitary common dolphin who interacts with harbour porpoises 你说什么?与港鼠海豚互动的野生独居普通海豚的声音行为

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-10 DOI: 10.1080/09524622.2021.1982005

M. Cosentino, David Nairn, M. Coscarella, J. Jackson, J. Windmill

引用次数: 1

Courtship and underwater communication in the Sunda gharial (Tomistoma schlegelii) Sunda gharial的法庭和水下通信（Tomistoma schlegelii）

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-06 DOI: 10.1080/09524622.2021.1967782

A. Staniewicz, S. Foggett, G. McCabe, M. Holderied

{"title":"Courtship and underwater communication in the Sunda gharial (Tomistoma schlegelii)","authors":"A. Staniewicz, S. Foggett, G. McCabe, M. Holderied","doi":"10.1080/09524622.2021.1967782","DOIUrl":"https://doi.org/10.1080/09524622.2021.1967782","url":null,"abstract":"ABSTRACT Many threatened crocodilians are shy and difficult to observe in the wild, limiting the current knowledge of their behaviour and ecology. Although acoustic communication is commonly used by adults during courtship and territory defence, the signals produced vary between taxa. Here we provide the first classification of adult vocalisations in Tomistoma schlegelii – a rare gavialid inhabiting swamp forests in Southeast Asia – and describe the behaviour produced during courtship. Using video and passive underwater acoustic monitoring we recorded a breeding captive pair of T. schlegelii housed indoors, as well as monitored 12 captive adults kept in a semi-natural outdoor enclosure over a period of two months. Courtship behaviour during 18 recorded mating events followed that observed in other crocodilians, but acoustic signals were restricted to mating activity and were only recorded in the two animals housed indoors. We identified seven signal types produced by T. schlegelii, which differed in duration, dominant frequency, and the presence of harmonic structure. These results suggest the species uses short-range, underwater acoustic signals during courtship and mating, with little vocal activity outside of those events, and provide foundation for future studies of this rare crocodilian.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48131937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Where, when, and why do western North Atlantic humpback whales begin to sing? 北大西洋西部座头鲸在哪里、什么时候、为什么开始唱歌？

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-09-02 DOI: 10.1080/09524622.2021.1972838

Katie A. Kowarski, S. Cerchio, H. Whitehead, H. Moors-Murphy

{"title":"Where, when, and why do western North Atlantic humpback whales begin to sing?","authors":"Katie A. Kowarski, S. Cerchio, H. Whitehead, H. Moors-Murphy","doi":"10.1080/09524622.2021.1972838","DOIUrl":"https://doi.org/10.1080/09524622.2021.1972838","url":null,"abstract":"ABSTRACT At the onset of the winter breeding season, male humpback whales begin a prominent breeding behaviour, singing. Early songs are produced on summer feeding grounds prior to migration, but little is known about the proximate cues for the initiation of this behaviour, nor where or when it begins. We document the phenology of humpback whale singing along the western North Atlantic coast ranging from Newfoundland and Labrador, Canada to Massachusetts, USA through the fall-winter of 2015–16 (seven stations) and 2016–17 (three stations). Acoustic data from static recorders were categorised as containing humpback whale non-song calls, song fragments, or full songs. First heard in September, singing occurred throughout the fall-winter, but was not regular until October. Latitude, temperature, photoperiod, sea surface pressure, and wind speed were considered as potential explanatory variables for four definitions of song onset using forward stepwise regression. Final models included the environmental variables with photoperiod negatively correlated to singing (coefficient = −657; p-value = 0.04). Reliable environmental cues, such as photoperiod, may produce a heritable physiological response, resulting in whales acquiring the capacity and motivation to sing, with the subsequent timing and nature of song production influenced by other factors.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43719940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

“Bat calls of Britain and Europe” “英国和欧洲的蝙蝠叫声”

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-08-23 DOI: 10.1080/09524622.2021.2024392

M. Obrist

引用次数: 3

BioAcoustic Index Tool: long-term biodiversity monitoring using on-sensor acoustic index calculations 生物声学指数工具:长期生物多样性监测使用传感器声学指数计算

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-08-16 DOI: 10.1080/09524622.2021.1939786

D. Kadish, K. Støy

{"title":"BioAcoustic Index Tool: long-term biodiversity monitoring using on-sensor acoustic index calculations","authors":"D. Kadish, K. Støy","doi":"10.1080/09524622.2021.1939786","DOIUrl":"https://doi.org/10.1080/09524622.2021.1939786","url":null,"abstract":"ABSTRACT Acoustic indices are valuable tools for measuring and tracking changes in biodiversity. However, the method used to collect acoustic index data can be made more effective by recent developments in electronics. The current process requires recording high-quality audio in the field and computing acoustic indices in the lab. This produces vast quantities of raw audio data, which limits the time that sensors can spend in the field and complicates data processing and analysis. Additionally, most field audio recorders are unable to log the full range of contextual environmental data that would help explain short-term variations. In this paper, we present the BioAcoustic Index Tool, a smart acoustic index and environmental sensor. The BioAcoustic Index Tool computes acoustic indices as audio is captured, storing only the index information, and logs temperature, humidity, and light levels. The sensor was able to operate completely autonomously for the entire five-month duration of the field study. In that time, it recorded over 4000 measurements of acoustic complexity and diversity all while producing the same amount of data that would be used to record 3 minutes of raw audio. These factors make the BioAcoustic Index Tool well-suited for large-scale, long-term acoustic biodiversity monitoring.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44758651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound from underground: cryptic communication in subterranean wild-living and captive northern mole voles (Ellobius talpinus) 来自地下的超声波：地下野生和圈养北方鼹鼠的秘密交流

IF 1.8 4区生物学

Bioacoustics-The International Journal of Animal Sound and Its Recording Pub Date : 2021-08-03 DOI: 10.1080/09524622.2021.1960191

I. Volodin, Margarita M. Dymskaya, A. Smorkatcheva, E. Volodina

{"title":"Ultrasound from underground: cryptic communication in subterranean wild-living and captive northern mole voles (Ellobius talpinus)","authors":"I. Volodin, Margarita M. Dymskaya, A. Smorkatcheva, E. Volodina","doi":"10.1080/09524622.2021.1960191","DOIUrl":"https://doi.org/10.1080/09524622.2021.1960191","url":null,"abstract":"ABSTRACT This study provides the first evidence of ultrasonic vocalisations (USVs) in a truly subterranean rodent, the northern mole vole Ellobius talpinus. Calls were recorded by attracting callers with a bait to burrow entrances, where they were mostly visible to researchers. USVs recorded from 14 different burrows in southern Russia were verified as belonging to Ellobius talpinus by comparison with USVs of two wild-captured young males and by comparison with USVs of four adults from a captive colony. As a first attempt at exploring the function of USV diversity, we defined upward-intense USVs, with a maximum fundamental frequency (f0) of 35.32 ± 5.11 kHz, and variable-faint USVs, with a maximum f0 of 31.40 ± 7.78 kHz. Compared to variable-faint USVs, the upward-intense USVs were longer, had a larger depth of frequency modulation and were produced at high intensity in regular series. The upward-intense USVs were lower in the maximum and peak frequencies in the wild than in captivity, whereas the variable-faint USVs did not differ between recordings from the wild and from captivity. We discuss that similar ranges of acoustic variables found in USVs of Ellobius talpinus and surface-dwelling Arvicolinae species do not support the hypothesis that subterranean life has drastically reduced ultrasonic vocalisation in rodents.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/09524622.2021.1960191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44243192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6