Characterizing structural variation in the notes of Adelaide's warbler (Setophaga adelaidae) songs

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dc.contributor.authorHuang, Samantha Yeing-Sih
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorLogue, David M.
dc.date.accessioned2023-10-12T00:39:38Z
dc.date.available2023-10-12T00:39:38Z
dc.date.issued2023
dc.degree.levelMasters
dc.description.abstractAcoustic structure varies at multiple levels in birdsong. Note-level analyses are beneficial because they can enable scientists to characterize song structures, define song types, and more precisely measure vocal performance. By-eye analysis of spectrograms is sometimes adequate for note classification. However, Adelaide’s warbler (Setophaga adelaidae) notes are difficult to classify visually because they contain a blend of discrete and continuous variation. We ran a novel, automated, image-based analysis called latent visualization to determine if discrete note types exist and to explore variation among notes. Notes differed primarily in general frequency characteristics, and note clusters (i.e., types) were not discrete. Contrary to our expectations, cluster labels disregarded note contour, which is the most important aspect of note structure for by-eye classification. Overall, latent visualization may not be ideal for species that produce frequency-modulated notes. We recommend running future image-based analyses on note contours alongside acoustic feature analysis for validation.
dc.identifier.urihttps://hdl.handle.net/10133/6601
dc.language.isoen_US
dc.proquestyesNo
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Psychology
dc.publisher.departmentDepartment of Psychology
dc.publisher.facultyArts and Science
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)
dc.subjectAdelaide's warbler
dc.subjectbirdsong note variation
dc.subjectbirdsong acoustic structure
dc.subjectlatent visualization
dc.subjectfrequency-modulated notes
dc.subjectbirdsong acoustic variation
dc.subject.lcshWood warblers--Vocalization--Research
dc.subject.lcshSetophaga--Vocalization--Research
dc.subject.lcshBirdsongs--Research
dc.subject.lcshSongbirds--Research
dc.subject.lcshBioacoustics
dc.subject.lcshDissertations, Academic
dc.titleCharacterizing structural variation in the notes of Adelaide's warbler (Setophaga adelaidae) songs
dc.typeThesis
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