Advertisement and release calls in Neotropical toads of the Rhinella granulosa group and evidence of natural hybridization between R. bergi and R. major (Anura: Bufonidae)

FRANCISCO KOLENC ¹CECILIA GUERRA ²DIEGO BALDO ³SERGIO ROSSET ⁴CLAUDIO BORTEIRO⁵

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作者信息

1. Section Herpetologia, Museo National de Historia Natural, 25 de Mayo 582. Montevideo, Uruguay
2. Institute de Herpetologia, Fundacion Miguel Lillo-CONICET, Miguel Lillo 251. CP: 4000, Tucumdn, Argentina
3. Laboratorio de Genetica Evolutiva, Facultad de Ciencias Exactas Quimicas y Naturales, Universidad National de Misiones. Felix deAzara 1552. CP: 3300, Posadas, Misiones, Argentina
4. Section Herpetologia, Museo de La Plata, Universidad National de La Plata", Paseo del Bosque s/N°. CP: 1900, La Plata, Buenos Aires, Argentina
5. Section Herpetologia, Museo National de Historia Natural,25 de Mayo 582. Montevideo, Uruguay
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Abstract

The Rhinella granulosa group currently includes 12 species distributed eastern to the Andes, from Panama to central Argentina. We studied bioacoustic features of the advertisement calls in seven of these species: Rhinella azarai, R. bergi, R. centralis, R. dorbignyi, R. fernandezae, R. major, and R. merianae. In addition, we analyzed the release calls of R. azarai, R. bergi, R. dorbignyi, and R. fernandezae. The advertisement calls consisted of long trills, composed by notes with a variable pulse number (2-8) that was characteristic of each species. The release calls consisted of a single note, pulsed or not. Both advertisement and release calls clearly varied between species, except for R. dorbignyi and R. fernandezae. The study of specimens sharing exosomatic characters with R. bergi and R. major from a syntopy area, which presented intermediate spectral and temporal call parameters, confirmed natural hybridization between these two species.

Key words

anuran vocalization/mating call/hybrids/South America

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出版年

2011

Zootaxa

SCI

ISSN：1175-5326

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