Song Repertoires and Song Sharing by American Redstarts

R.E. Lemon, R.C. Cotter, Ralph MAC NALLY, Stephen Monette

    Research output: Contribution to journalArticle

    Abstract

    We studied the extent to which male American Redstarts (Setoph- aga ruticilla) share songs in their repertoires. Examining samples of songs from three locations in New Brunswick, Canada, we found significant heterogeneity the frequencies of the different songs across the locations. The extent to which neighbors shared songs related to increasing repertoire size (mean 4.4 songs/adult male). In the relatively larger sample at St. Andrews, neighboring adult males shared significantly more song types (P < 0.05) than did adult males chosen at random. However, this result applied only to individuals with intermediate-sized repertoires (four songs). Subadult males at St. Andrews shared as much with neighboring adult males as did adult males among themselves. In the small, island population at Back Bay, adult males shared noticeably more songs than St. Andrews. We attribute the difference in degree of song sharing to demographic aspects, including patterns of settlement, interacting with tendencies to copy songs. Therefore, any so-called "dialects" in songs of American Redstarts seem more "epiphenomena" resulting from competiton between males rather than as indi- cations of local adaptations of
    Original languageEnglish
    Pages (from-to)457-470
    JournalCondor
    Volume87
    DOIs
    Publication statusPublished - 1985

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    Setophaga ruticilla
    song
    New Brunswick
    local adaptation
    cations
    demographic statistics
    Canada

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    Lemon, R.E. ; Cotter, R.C. ; MAC NALLY, Ralph ; Monette, Stephen. / Song Repertoires and Song Sharing by American Redstarts. In: Condor. 1985 ; Vol. 87. pp. 457-470.
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    Song Repertoires and Song Sharing by American Redstarts. / Lemon, R.E.; Cotter, R.C.; MAC NALLY, Ralph; Monette, Stephen.

    In: Condor, Vol. 87, 1985, p. 457-470.

    Research output: Contribution to journalArticle

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