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A first detailed characterization of the vocal morphology in leptodactylid frogs: insights into mechanisms of sound production in amphibian anurans

Grant number: 18/17118-8
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): February 01, 2019
Effective date (End): January 31, 2020
Field of knowledge:Biological Sciences - Zoology - Morphology of Recent Groups
Principal Investigator:Célio Fernando Baptista Haddad
Grantee:Thiago Ribeiro de Carvalho Tavares
Supervisor: Marcos Gridi-Papp
Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Research place: University of the Pacific, Stockton, United States  
Associated to the scholarship:17/08489-0 - Diversity of vocalizations in Leptodactylidae and exploratory analysis of vocal morphology: a phylogenetic comparative approach investigation of acoustic evolution in a group of Neotropical anurans, BP.PD


Vocalizations are the main signal conveyed by males of most amphibian anuran species in reproductive context. These signals, conspicuous and stereotyped, are applicable to, for instance, behavioral studies in the light of evolution, such as sexual selection, speciation and mechanisms of production and recognition. Leptodactylidae is a species-rich taxon (> 200), with representatives throughout the Neotropics. The group exhibits a high diversity of vocalizations. The diversity of call patterns accentuates the potential to studies that aim at evolutionary processes explaining the high variability of acoustic signals in these organisms. Laryngeal structures have been associated with acoustic patterns in other anuran groups, even though detailed morphological descriptions are still scanty. A comprehensive review and association of the vocal morphology and the myriad of acoustic patterns recognized for this taxonomic group might be promising. This project aims to characterize the vocal morphology for the first the time of a frog family (Leptodactylidae) and address the degree to which acoustic traits and laryngeal structures are associated using a phylogenetic comparative approach. The results of this project will bring novelties on the vocal morphology and, more broadly, give insights into the underlying evolutionary processes involved in sound production in Anura.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANTOS, MARCUS THADEU T.; BARATA, IZABELA M.; FERREIRA, RODRIGO B.; HADDAD, CELIO F. B.; GRIDI-PAPP, MARCOS; DE CARVALHO, THIAGO R.. Complex acoustic signals in Crossodactylodes (Leptodactylidae, Paratelmatobiinae): a frog genus historically regarded as voiceless. BIOACOUSTICS-THE INTERNATIONAL JOURNAL OF ANIMAL SOUND AND ITS RECORDING, . (13/50741-7, 17/08489-0, 18/17118-8)

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