2015
DOI: 10.11606/issn.2316-9079.v14i2p127-137
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The complex vocalization of Scinax cardosoi (Anura: Hylidae), with comments on advertisement calls in the S. ruber Clade

Abstract: The complex vocalization of Scinax cardosoi (Anura: Hylidae), with comments on advertisement calls in the S. ruber Clade. The complex vocalization of Scinax cardosoi from a population of Minas Gerais in southeastern Brazil is described and compared with available acoustic data for the other species of the S. ruber Clade. Three distinct types of "trilled" calls. Short calls (16-66 ms) resemble squeaks, and consist of a pulsed signal (8-28 pulses/call) with regular amplitude modulations throughout their duration… Show more

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Cited by 9 publications
(9 citation statements)
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“…contexts (such as males in close-range interactions, spatial maintenance, and others [18,19]). Aggressive notes are often reported for Scinax species [12,[20][21][22][23], and thus, the assumption that these were emitted in such conditions could be made based on similarities regarding aggressive notes already described for congeners [12,21,23]. It is noteworthy that behavioral experiments are necessary to clearly delimitate the context in which each note is emitted.…”
Section: Discussionmentioning
confidence: 99%
“…contexts (such as males in close-range interactions, spatial maintenance, and others [18,19]). Aggressive notes are often reported for Scinax species [12,[20][21][22][23], and thus, the assumption that these were emitted in such conditions could be made based on similarities regarding aggressive notes already described for congeners [12,21,23]. It is noteworthy that behavioral experiments are necessary to clearly delimitate the context in which each note is emitted.…”
Section: Discussionmentioning
confidence: 99%
“…These facts point out to the need to use lines of evidence other than morphology, such as molecular and acoustics characterizations, to uncover cryptic diversity in Scinax [17]. In this sense, several studies have been done in an endeavor to properly document interspecific variation of vocal patterns in the genus [25][26][27][28][29][30][31][32][33][34]. The advertisement call of Scinax species is usually consisted of a single multipulsed note with variable duration [25,[31][32][33][34][35] and sometimes with more than one emphasized frequency band [25,30,36], what seems to be relevant in species-specific recognition [25,37].…”
Section: Introductionmentioning
confidence: 99%
“…Los análisis acústicos fueron realizados mediante el programa Raven Pro 1,5 (Charif et al, 2010) con una frecuencia de muestreo de 44,1 KHz y 16bit de resolución; la temperatura y humedad relativa fueron obtenidas con termo-higrómetro marca EXTECH. Los siguientes parámetros, que incluyen variables espectrales y temporales, siguen diferentes propuestas (Duellman y Pyles, 1983;Cocroft y Ryan, 1995;De Carvalho et al, 2015;Köhler et al, 2017) que incluyen: llamado (unidad acústica principal en una vocalización; un llamado está separado de otro por silencio), duración de la llamada (es la duración de una sola llamada, independientemente de si está compuesta por una o varias notas), nota (subunidades más pequeñas, casi siempre separadas por intervalos de silencio, el llamado se suele dividir en notas), número de notas por llamada (número de señales acústicas reconocibles en una llamada), duración de una nota (duración de una nota dentro de una llamada; medida desde el principio hasta el final de la nota), duración de los intervalos entre notas, pulso (ráfagas de sonido dentro de una nota), número de pulsos por nota, oscilaciones (número de ondas de sonido contenidas en cada nota), número de armónicos (número de armónicos presente en una llamadas), espectro de frecuencia (el intervalo que representa todo el espectro de frecuencia en el cual están contenidos los armónicos) y la frecuencia dominante (la frecuencia de mayor energía). Las grabaciones fueron depositadas en el Banco de Sonidos Ambientales (BSA), del Instituto Humboldt y las URL con las vocalizaciones están disponibles en http://colecciones.humboldt.org.…”
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