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Unveiling the Diet Composition of Trachycephalus typhonius (Linnaeus, 1758) from a Relictual Mountain in Brazilian Semiarid

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Abstract

Animal food is one of the most important ecological aspects of one species. Studying this factor is fundamental to understanding their life history, microhabitat use, and interactions with other species. Amphibians are an interesting group to understand the food chains because they interact with aquatic and terrestrial environments. Among them, Trachycephalus typhonius is a widespread treefrog in South America but there is still a lack of knowledge about its natural history. Therefore, we described the feeding habits of T. typhonius from a relictual humid forest mountain in Brazilian semiarid. The present study was conducted in the Maranguape mountain, Ceará state, Brazil during the rainy season from April to May 2019. We collected the individuals using visual and auditory searches. Overall, we found 24 specimens of T. typhonius, in which all of them had stomach contents. We identified 11 prey categories, in which coleopterans and orthopterans were the most important prey item for this species’ diet. It is also important to point out that plant pieces were found in the stomach of eight individuals, which might suggest a purposeful consumption. Additionally, we found no significant differences regarding the abundance, richness, and composition of prey items consumed by males and females. In contrast, we observed individuals with largest mouth breadth tend to select prey items more volumetric. Overall, our study is the pioneer to investigate the feeding habits of T. typhonius from a montane ecosystem in Brazilian semiarid region and contributes to increasing the knowledge about its natural history.

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ACKNOWLEDGMENTS

CMAR thanks the Instituto Federal do Piauí (Campus Pedro II) for availability of the laboratory and the Grupo de Pesquisa em Biodiversidade e Biotecnologia do Centro-Norte Piauiense (BIOTECPI) for the help with the laboratory procedures. KCA thanks Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Fundação de Amparo à Pesquisa do Estado do Piauí (FAPEPI) for providing research fellowship (Process: 150013/2023-0), and RWA thanks the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for providing research fellowships (307722/2021-0) (PQ nos. 303622/2015-6; 305988/2018-2; 307722/2021-0). This study was approved by the Ethics Committee of Universidade Regional do Cariri (CEUA/URCA, process no. 00260/2016.1), and the Instituto Chico Mendes de Conservação da Biodiversidade (collection license ICMBio: 29613).

Funding

This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (PQ nos. 303622/2015-6; 305988/2018-2; 307722/2021-0).

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Authors and Affiliations

  1. Grupo de Pesquisa em Biodiversidade e Biotecnologia do Centro-Norte Piauiense, Instituto Federal de Educação, Ciência e Tecnologia do Piauí, Campus Pedro II, 750, Pedro II, PI, 64255-000, Rua Antonino Martins de Andrade, Brasil

    Clarice Maria de Araújo-Silva, Kássio de Castro Araújo & Etielle Barroso Andrade

  2. Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz, Campus Soane Nazaré de Andrade, 45662-900, Rodovia Jorge Amado, Ilhéus, BA, Brasil

    Clarice Maria de Araújo-Silva

  3. Programa de Pós-Graduação em Ecologia e Recursos Naturais, Departamento de Biologia, Campus do Pici, Universidade Federal do Ceará, Bloco 906, Av. Mister Hull, s/n, 60440-900, Fortaleza, CE, Brasil

    Kássio de Castro Araújo & Robson Waldemar Ávila

Authors
  1. Clarice Maria de Araújo-Silva
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  2. Kássio de Castro Araújo
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  3. Robson Waldemar Ávila
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  4. Etielle Barroso Andrade
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Corresponding author

Correspondence to Clarice Maria de Araújo-Silva.

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ETHICS APPROVAL AND CONSENT TO PARTICIPATE

We used animals that were euthanized according to the ethical procedures of the Federal Council of Veterinary Medicine—CFMV (2013) after approval on January 20, 2016 by the Ethics Committee of Universidade Regional do Cariri (CEUA/URCA, process no. 00260/2016.1), and the Instituto Chico Mendes de Conservação da Biodiversidade (collection license ICMBio: 29613). This article does not contain any studies with human participants performed by any of the authors.

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The authors of this work declare that they have no conflicts of interest.

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Clarice Maria de Araújo-Silva, de Castro Araújo, K., Ávila, R.W. et al. Unveiling the Diet Composition of Trachycephalus typhonius (Linnaeus, 1758) from a Relictual Mountain in Brazilian Semiarid. Biol Bull Russ Acad Sci 51, 1181–1189 (2024). https://doi.org/10.1134/S1062359023605256

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