nvironmental and phylogenetic aspects affect in different ways the acoustic niche of a frog community in southeastern Brazi

Autor(es)

Manzano, Maria Carolina R. ^{[1, 2]} ; Sawaya, Ricardo J. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC UFABC, Programa Posgrad Evolucao & Diversidade, Alameda Univ S-N, BR-09606045 Sao Bernardo Do Campo, SP - Brazil

^[2] Univ Fed Sao Paulo, Dept Ecol & Biol Evolut, UNIFESP, Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP - Brazil

^[3] Univ Fed ABC UFABC, Ctr Ciencias Nat & Humanas, Alameda Univ S-N, BR-09606045 Sao Bernardo Do Campo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Anais da Academia Brasileira de Ciências; v. 94, n. 1 2022.
• Citações Web of Science: 0

Resumo

One of the most important resources for reproduction in frogs is the acoustic space since the advertisement call, which is mostly used to attract females, may suffer interference when the acoustic space is widely filled. Other important resources are calling sites and adequate climatic conditions. We analyzed herein three dimensions of the acoustic niche of anurans (advertisement calls, calling period, and calling sites). We recorded 11 calling species of frogs in a tropical community. Species richness was negatively related to temperature, and daily activity was positively related to humidity. We also observed a greater niche overlap than expected by chance in calling periods. These results indicate that the climatic conditions should act as an environmental filter, synchronizing the calling period. The calling site was not shared among species, and no clear pattern of substrate use was observed. Regarding the acoustic dimension, we observe a phylogenetic signal in the dominant frequency of advertisement calls. Hierarchical cluster analysis also indicated a congruence between acoustic distances and phylogenetic relationships. Therefore, the dominant frequency of advertisement calls was constrained by phylogenetic relationships, indicating that it affects the partitioning and use of acoustic resources, an important dimension in reproductive activity in anurans. (AU)

• Processo FAPESP: 14/23677-9 - Novas abordagens de ecologia e conservação: diversidade filogenética e funcional de anfíbios e serpentes da Mata Atlântica brasileira
• Beneficiário: Ricardo Jannini Sawaya
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/15218-8 - Diversidade acústica e funcional em comunidades de anuros
• Beneficiário: Maria Carolina Rodella Manzano
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Mestrado
• Processo FAPESP: 18/04520-2 - Influências ambientais e bióticas: entendendo a diversidade acústica em comunidades de anfíbios anuros de Mata Atlântica
• Beneficiário: Maria Carolina Rodella Manzano
• Modalidade de apoio: Bolsas no Brasil - Mestrado