A comparison between two ways to measure minimum frequency and an experimental test of vocal plasticity in red-winged blackbirds in response to noise.
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| Title: | A comparison between two ways to measure minimum frequency and an experimental test of vocal plasticity in red-winged blackbirds in response to noise. |
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| Authors: | Ríos-Chelén, Alejandro A., Lee, Gavin C., Patricelli, Gail L. |
| Source: | Behaviour. 2016, Vol. 153 Issue 12, p1445-1472. 28p. |
| Subjects: | Blackbirds, Voice frequency, Vocal cords, Power spectra, Comparative studies |
| Abstract: | We examined whether red-winged blackbirds modulate their vocalizations in response to experimental highway noise, alternating between ambient-control and noise-playback periods. Our measures of song duration were shorter, and with a lower value of freq5% (a measure of energy distribution), during noise-playback; however, we interpret these results as noise-induced artefacts. This apparent lack of vocal plasticity should be taken cautiously because we had a small sample size and most birds produced only one song type: song type-related vocal plasticity was unlikely to be found. We found no evidence of a shift in minimum frequency with noise when this was measured with a threshold method on power spectra, but it seemed to increase when measured by eye from spectrograms. Our results suggest that the by-eye practice can lead to bias, which is problematic as several previous studies have used this procedure. Use of the threshold method, over the by-eye practice, is encouraged. [ABSTRACT FROM AUTHOR] |
| Copyright of Behaviour is the property of Brill Academic Publishers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 118927351 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A comparison between two ways to measure minimum frequency and an experimental test of vocal plasticity in red-winged blackbirds in response to noise. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ríos-Chelén%2C+Alejandro+A%2E%22">Ríos-Chelén, Alejandro A.</searchLink><br /><searchLink fieldCode="AR" term="%22Lee%2C+Gavin+C%2E%22">Lee, Gavin C.</searchLink><br /><searchLink fieldCode="AR" term="%22Patricelli%2C+Gail+L%2E%22">Patricelli, Gail L.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Behaviour%22">Behaviour</searchLink>. 2016, Vol. 153 Issue 12, p1445-1472. 28p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Blackbirds%22">Blackbirds</searchLink><br /><searchLink fieldCode="DE" term="%22Voice+frequency%22">Voice frequency</searchLink><br /><searchLink fieldCode="DE" term="%22Vocal+cords%22">Vocal cords</searchLink><br /><searchLink fieldCode="DE" term="%22Power+spectra%22">Power spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We examined whether red-winged blackbirds modulate their vocalizations in response to experimental highway noise, alternating between ambient-control and noise-playback periods. Our measures of song duration were shorter, and with a lower value of freq5% (a measure of energy distribution), during noise-playback; however, we interpret these results as noise-induced artefacts. This apparent lack of vocal plasticity should be taken cautiously because we had a small sample size and most birds produced only one song type: song type-related vocal plasticity was unlikely to be found. We found no evidence of a shift in minimum frequency with noise when this was measured with a threshold method on power spectra, but it seemed to increase when measured by eye from spectrograms. Our results suggest that the by-eye practice can lead to bias, which is problematic as several previous studies have used this procedure. Use of the threshold method, over the by-eye practice, is encouraged. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Behaviour is the property of Brill Academic Publishers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=118927351 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1163/1568539X-00003390 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 28 StartPage: 1445 Subjects: – SubjectFull: Blackbirds Type: general – SubjectFull: Voice frequency Type: general – SubjectFull: Vocal cords Type: general – SubjectFull: Power spectra Type: general – SubjectFull: Comparative studies Type: general Titles: – TitleFull: A comparison between two ways to measure minimum frequency and an experimental test of vocal plasticity in red-winged blackbirds in response to noise. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ríos-Chelén, Alejandro A. – PersonEntity: Name: NameFull: Lee, Gavin C. – PersonEntity: Name: NameFull: Patricelli, Gail L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: 2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 00057959 Numbering: – Type: volume Value: 153 – Type: issue Value: 12 Titles: – TitleFull: Behaviour Type: main |
| ResultId | 1 |
