Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior.
Acoustic communication is common in dolphins and encompasses a variety of sounds, either vocal or not. Among vocalizations, whistles are continuous narrow-band and frequency-modulated sounds, with a frequency range between 2-24 kHz. The aim of this study was to characterize the whistles of a residen...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa |
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Universidad Nacional de Córdoba
2014
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/racc/article/view/6362 |
| _version_ | 1811171512817811456 |
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| author | Romero-Mujalli, Daniel Tárano, Zaida Cobarrubia, Sergio Barreto, Guillermo |
| author_facet | Romero-Mujalli, Daniel Tárano, Zaida Cobarrubia, Sergio Barreto, Guillermo |
| author_sort | Romero-Mujalli, Daniel |
| collection | Portal de Revistas |
| description | Acoustic communication is common in dolphins and encompasses a variety of sounds, either vocal or not. Among vocalizations, whistles are continuous narrow-band and frequency-modulated sounds, with a frequency range between 2-24 kHz. The aim of this study was to characterize the whistles of a resident group of bottlenose dolphins in the coast of Aragua state, Venezuela, and to determine their association with surface behavior. On average, whistle frequency ranged from 7 to 16 kHz. Six types of whistles, according to the contour of frequency modulation, were found: constant, ascending, descending, ascending-descending, descending-ascending and multiple. Only two behavioral states were observed: traveling and socialization. There was significant association between the type of whistle and behavior: whistles of medium complexity (ascending-descending) were preferred during traveling and significantly avoided during socialization. Furthermore, whistles emitted during socialization were longer, of broader bandwidth, and spanning over lower frequencies than those emitted during traveling. The variation of whistles according to surface behavior confirms that they have a communicational value. Future research should focus on the causes and consequences of whistle emission to elucidate their referential function. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-6362 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2014 |
| publisher | Universidad Nacional de Córdoba |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-63622019-05-27T19:17:36Z Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. Caracterización de silbidos de Tursiops truncatus (Cetacea: Delphinidae) y su asociación con el comportamiento en superficie Romero-Mujalli, Daniel Tárano, Zaida Cobarrubia, Sergio Barreto, Guillermo bottlenose dolphins Tursiops truncatus whistles surface behavior communication tursiops truncatus silbidos comportamiento en superficie comunicación en delfines Comunicación Animal Acoustic communication is common in dolphins and encompasses a variety of sounds, either vocal or not. Among vocalizations, whistles are continuous narrow-band and frequency-modulated sounds, with a frequency range between 2-24 kHz. The aim of this study was to characterize the whistles of a resident group of bottlenose dolphins in the coast of Aragua state, Venezuela, and to determine their association with surface behavior. On average, whistle frequency ranged from 7 to 16 kHz. Six types of whistles, according to the contour of frequency modulation, were found: constant, ascending, descending, ascending-descending, descending-ascending and multiple. Only two behavioral states were observed: traveling and socialization. There was significant association between the type of whistle and behavior: whistles of medium complexity (ascending-descending) were preferred during traveling and significantly avoided during socialization. Furthermore, whistles emitted during socialization were longer, of broader bandwidth, and spanning over lower frequencies than those emitted during traveling. The variation of whistles according to surface behavior confirms that they have a communicational value. Future research should focus on the causes and consequences of whistle emission to elucidate their referential function. La comunicación acústica es común en delfines y comprende una variedad de sonidos vocales o no. Entre las vocalizaciones, los silbidos son sonidos continuos de banda estrecha y frecuencia modulada entre 2-24kHz. El objetivo de este estudio fue caracterizar los silbidos de un grupo residente de Tursiops truncatus en la costa del Estado Aragua (Venezuela) y determinar su asociación con la conducta en superficie. En promedio, la frecuencia de los silbidos varió entre 7-16 kHz. Se encontraron seis tipos de silbidos de acuerdo a su modulación o contorno: constantes, ascendentes, descendentes, ascendente-descendentes, descendente-ascendentes y múltiples. Se observaron dos estados de comportamiento: viaje y socialización. Se encontró asociación significativa entre el tipo de silbido y el comportamiento: silbidos de complejidad media (ascendente-descendentes) fueron preferidos durante el viaje, y evitados durante la socialización. Además, los silbidos durante la socialización fueron más largos, de mayor ancho de banda, y frecuencias más bajas, que los emitidos durante el viaje. La variación de los silbidos de acuerdo al comportamiento en superficie confirma que los silbidos tienen un valor comunicacional. Investigaciones futuras deben enfocarse en las causas y consecuencias de la emisión de silbidos para elucidar su función referencial. Universidad Nacional de Córdoba 2014-04-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/msword https://revistas.unc.edu.ar/index.php/racc/article/view/6362 10.32348/1852.4206.v6.n1.6362 Argentinean Journal of Behavioral Sciences; Vol. 6 No. 1 (2014): Revista Argentina de Ciencias del Comportamiento; 15-29 Revista Argentina de Ciencias del Comportamiento; Vol. 6 Núm. 1 (2014): Revista Argentina de Ciencias del Comportamiento; 15-29 1852-4206 10.32348/1852.4206.v6.n1 spa https://revistas.unc.edu.ar/index.php/racc/article/view/6362/Romero2014 https://revistas.unc.edu.ar/index.php/racc/article/view/6362/24941 Derechos de autor 2014 Daniel Romero-Mujalli, Zaida Tárano, Sergio Cobarrubia, Guillermo Barreto |
| spellingShingle | bottlenose dolphins Tursiops truncatus whistles surface behavior communication tursiops truncatus silbidos comportamiento en superficie comunicación en delfines Comunicación Animal Romero-Mujalli, Daniel Tárano, Zaida Cobarrubia, Sergio Barreto, Guillermo Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title | Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title_alt | Caracterización de silbidos de Tursiops truncatus (Cetacea: Delphinidae) y su asociación con el comportamiento en superficie |
| title_full | Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title_fullStr | Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title_full_unstemmed | Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title_short | Characterization pf the whistles of Tursiops truncatus (Cetacea: Delphinidae) and their association with surface behavior. |
| title_sort | characterization pf the whistles of tursiops truncatus cetacea delphinidae and their association with surface behavior |
| topic | bottlenose dolphins Tursiops truncatus whistles surface behavior communication tursiops truncatus silbidos comportamiento en superficie comunicación en delfines Comunicación Animal |
| topic_facet | bottlenose dolphins Tursiops truncatus whistles surface behavior communication tursiops truncatus silbidos comportamiento en superficie comunicación en delfines Comunicación Animal |
| url | https://revistas.unc.edu.ar/index.php/racc/article/view/6362 |
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