Typical males and unconventional females: songs and singing behaviors of a tropical, duetting oriole in the breeding and non-breeding season

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dc.contributor.authorOdom, Karan J.
dc.contributor.authorOmland, Kevin E.
dc.contributor.authorMcCaffrey, David R.
dc.contributor.authorMonroe, Michelle K.
dc.contributor.authorChristhilf, Jennifer L.
dc.contributor.authorRoberts, Natalie S.
dc.contributor.authorLogue, David M.
dc.date.accessioned2020-03-25T16:47:52Z
dc.date.available2020-03-25T16:47:52Z
dc.date.issued2016
dc.descriptionSherpa Romeo green journal. Open access article. Creative Commons Attribution License (CC BY) applies.en_US
dc.description.abstractRecent research emphasizes that female song is evolutionarily important, yet there are still few species for which we have quantified the similarities and differences between male and female song. Comparing song rates and the structure of female and male song is an important first step to forming hypotheses about functional and evolutionary differences that may exist between females and males, especially in year-round territorial species that may use their songs for breeding and non-breeding activities. We compared female and male singing rates and song structure in a tropical New World oriole, the Venezuelan troupial (Icterus icterus) during both the breeding and non-breeding season and between the dawn and day. Males sang solos at particularly high rates during the breeding season before dawn. Females, however, sang at consistent rates year-round, primarily during the day. Females answered 75% of male day songs, producing duets, whereas males answered only 42% of female songs. Duets were common year-round, but occurred more often during the non-breeding season. Structurally, female songs were higher pitched and shorter than male songs. We detected no sex differences in the number or order of syllables, however, interestingly, answers were shorter than duet initiations and solos, and, during the breeding season, songs that initiated duets were characterized by higher syllable diversity than were answers or solos. The fact that males sing more during the breeding season supports the classical hypothesis that male song is a sexually selected trait. However, our findings that females sing solos and answer the majority of male songs to create duets year-round suggests that female song may have evolved to serve multiple functions not exclusively tied to breeding.en_US
dc.description.peer-reviewYesen_US
dc.identifier.citationOdom, K. J., Omland, K. E., McCaffrey, D. R., Monroe, M. K., Christhilf, J. L., Roberts, N. S., & Logue, D. M. (2016). Typical males and unconventional females: Songs and singing behaviors of a tropical, duetting oriole in the breeding and non-breeding season. Frontiers in Ecology and Evolution, 4, 14. doi: 10.3389/fevo.2016.00014en_US
dc.identifier.urihttps://hdl.handle.net/10133/5702
dc.language.isoen_USen_US
dc.publisherFrontiers Research Foundationen_US
dc.publisher.departmentDepartment of Psychologyen_US
dc.publisher.facultyArts and Scienceen_US
dc.publisher.institutionUniversity of Marylanden_US
dc.publisher.institutionUniversity of Lethbridgeen_US
dc.publisher.urlhttps://dx.doi.org/10.3389/fevo.2016.00014
dc.subjectFemale songen_US
dc.subjectDueten_US
dc.subjectTroupialen_US
dc.subjectIcterusen_US
dc.subjectBehavioren_US
dc.subjectSelectionen_US
dc.subjectSinging behavior
dc.subjectTropical orioles
dc.subjectBird song research
dc.subjectFemale songbirds
dc.subjectMale songbirds
dc.subjectAvian duetting
dc.subject.lcshBirdsongs
dc.subject.lcshOrioles
dc.subject.lcshIcterus (Birds)
dc.subject.lcshSongbirds--Behavior
dc.titleTypical males and unconventional females: songs and singing behaviors of a tropical, duetting oriole in the breeding and non-breeding seasonen_US
dc.typeArticleen_US
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