Pub Date : 2021-08-03DOI: 10.1080/09524622.2021.1960191
I. Volodin, Margarita M. Dymskaya, A. Smorkatcheva, E. Volodina
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.
{"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":"31 1","pages":"414 - 434"},"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}
Pub Date : 2021-07-08DOI: 10.1080/09524622.2021.1945952
J. Marchal, François Fabianek, Y. Aubry
ABSTRACT Autonomous recording units now facilitate the large collection of audio recordings. However, the analysis of large amounts of acoustic data remains a challenge. The time required for manually searching for bird vocalisations may be equivalent or greater to the duration of audio recordings. This major constraint can be significantly reduced through the use of software developed for automated identification of bird vocalisations in audio recordings. We have compared the performance of four software (CallSeeker, Kaleidoscope Pro, Raven Pro, and Song Scope) and a Convolutional Neural Network (CNN) using audio recordings containing calls of Bicknell’s Thrush and Gray-Cheeked Thrush, as well as the vocalisations of other bird species whose acoustic characteristics overlap with those of our target species. We evaluated all the software on the basis of two main criteria, their ability to detect calls and their ability to classify them correctly by species. Software performance ranged from 30 to 90% in terms of call detection (recall) and from 27 to 99% in terms of correct call classification (precision). CNNs offer a promising solution to the long-standing problem of detecting animal vocalisations in noisy soundscapes, while eliminating the tedious manual step of configuring the algorithms to maximise software performance.
{"title":"Software performance for the automated identification of bird vocalisations: the case of two closely related species","authors":"J. Marchal, François Fabianek, Y. Aubry","doi":"10.1080/09524622.2021.1945952","DOIUrl":"https://doi.org/10.1080/09524622.2021.1945952","url":null,"abstract":"ABSTRACT Autonomous recording units now facilitate the large collection of audio recordings. However, the analysis of large amounts of acoustic data remains a challenge. The time required for manually searching for bird vocalisations may be equivalent or greater to the duration of audio recordings. This major constraint can be significantly reduced through the use of software developed for automated identification of bird vocalisations in audio recordings. We have compared the performance of four software (CallSeeker, Kaleidoscope Pro, Raven Pro, and Song Scope) and a Convolutional Neural Network (CNN) using audio recordings containing calls of Bicknell’s Thrush and Gray-Cheeked Thrush, as well as the vocalisations of other bird species whose acoustic characteristics overlap with those of our target species. We evaluated all the software on the basis of two main criteria, their ability to detect calls and their ability to classify them correctly by species. Software performance ranged from 30 to 90% in terms of call detection (recall) and from 27 to 99% in terms of correct call classification (precision). CNNs offer a promising solution to the long-standing problem of detecting animal vocalisations in noisy soundscapes, while eliminating the tedious manual step of configuring the algorithms to maximise software performance.","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"31 1","pages":"397 - 413"},"PeriodicalIF":1.8,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/09524622.2021.1945952","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43166153","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}
{"title":"Audio Data Reduction","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-9","DOIUrl":"https://doi.org/10.4324/9781003092919-9","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"144 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77480677","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}
Pub Date : 2021-07-02DOI: 10.4324/9781003092919-12
F. Rumsey, T. McCormick
{"title":"Power Amplifiers","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-12","DOIUrl":"https://doi.org/10.4324/9781003092919-12","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"44 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83239394","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}
Pub Date : 2021-07-02DOI: 10.4324/9781003092919-14
F. Rumsey, Tim McCormick
{"title":"Synchronization","authors":"F. Rumsey, Tim McCormick","doi":"10.4324/9781003092919-14","DOIUrl":"https://doi.org/10.4324/9781003092919-14","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"20 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82268439","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}
Pub Date : 2021-07-02DOI: 10.4324/9781003092919-10
F. Rumsey, T. McCormick
{"title":"Digital Audio Interfaces and Networking","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-10","DOIUrl":"https://doi.org/10.4324/9781003092919-10","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"46 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89938556","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}
{"title":"Digital Recording and Editing Systems","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-6","DOIUrl":"https://doi.org/10.4324/9781003092919-6","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"44 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84639585","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}
Pub Date : 2021-07-02DOI: 10.4324/9780080468501-24
F. Rumsey, T. McCormick
{"title":"Two-Channel Stereo","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9780080468501-24","DOIUrl":"https://doi.org/10.4324/9780080468501-24","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"58 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73722198","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}
{"title":"Auditory Perception and Sound Quality","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-2","DOIUrl":"https://doi.org/10.4324/9781003092919-2","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"30 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84290975","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}
{"title":"Digital Audio Principles","authors":"F. Rumsey, T. McCormick","doi":"10.4324/9781003092919-5","DOIUrl":"https://doi.org/10.4324/9781003092919-5","url":null,"abstract":"","PeriodicalId":55385,"journal":{"name":"Bioacoustics-The International Journal of Animal Sound and Its Recording","volume":"27 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83329736","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}
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