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Poster communications

Colony and population dialects in yellow-rumped caciques (Cacicus c. cela) and red-rumped caciques (Cacicus h. haemorrhous)

Abstract : The yellow-rumped cacique (Cacicus cela cela), a colonial polygynous Icterid widespread in South America, is a model of reference for demonstrating colony dialects in songbirds, as shown by Feekes (1977, 1982) on the ‘short song’ (‘Cela-song’) in this species. Further studies, e.g. in European starling (Hausberger, 1986), showed the presence of individual signature and dialects at different spatial scales (local and regional). This work presents our field study of the vocal repertoire of C. c. cela and Cacicus haemorrhous haemorrhous in French Guyanian metapopulations. One to three males per colony were followed by eye during a one-period observation and their vocalizations digitally recorded. Instead of the traditional visual categorization of songs on sonagrams, we used a series of objective and reproducible measures of frequencies and timing. Results showed vocal sharing of the short song at colony level in C. c. cela and at local level in C. h. haemorrhous. These results agree with those found by Trainer (1989) on another subspecies: C. cela vitellinus in Panama. While Feekes (1977, 1982) proposed that song sharing at colony level could work has a group-closing process in C. c. cela (the ‘password hypothesis’), our observations rather suggest song imitation in socially open groups.
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Poster communications
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01355826
Contributor : Umr6552 Ethos <>
Submitted on : Wednesday, August 24, 2016 - 12:00:00 PM
Last modification on : Thursday, January 9, 2020 - 4:08:04 PM

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  • HAL Id : hal-01355826, version 1

Citation

Sarah Du Bosq, Margarita Briseño Jaramillo, Pierre Deleporte, Laurence Henry, Véronique Guyot-Biquand. Colony and population dialects in yellow-rumped caciques (Cacicus c. cela) and red-rumped caciques (Cacicus h. haemorrhous). Behavior 2009 - 31st International Ethological Conference, Aug 2009, Rennes, France. ⟨hal-01355826⟩

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