Body size, habitat, and sexual selection affect call evolution in Cophomantini treefrogs (Anura: Hylidae: Hylinae)

Autor(es)

Nakamura, Daniel Yudi Miyahara ; Escalona, Moises ; Pinheiro, Paulo Duraes Pereira

• Tipo de documento: Artigo Científico
• Fonte: Biological Journal of the Linnean Society; v. N/A, p. 18-pg., 2024-03-23.

Resumo

Advertisement calls are emitted by anuran males to attract females or repel competitors. Call frequencies are coupled with the vocal apparatus and, thus, likely with body size due to allometric constraints. Physical properties of the habitat might affect the evolution of advertisement calls through natural selection, with high- and low-frequency calls expected in lotic and lentic environments, respectively. Conversely, call frequencies may be influenced by sexual selection because low-frequency sounds are predicted to be perceived as more intimidating in intrasexual competition and more attractive in female choice. In addition, although the evolution of dominant frequencies has been investigated in anurans, little is known about fundamental frequencies. Here we investigated whether body size, habitat, and sexual selection are associated with the evolution of dominant and fundamental frequencies of the vocalizations in the Neotropical hylid tribe Cophomantini, using phylogenetic comparative methods. We found that body size and habitat predict dominant frequency across the phylogeny, whereas only body size is correlated with fundamental frequency. Reproduction in lotic environments is plesiomorphic for the tribe, with changes to lentic environments concentrated in some Boana clades. Intensity of sexual selection is negatively correlated with dominant frequency in Bokermannohyla, in which low-frequency calls are expected under strong sexual selection. Our results illustrate how the interplay between body size, habitat, and sexual selection may affect the evolution of spectral traits. (AU)

• Processo FAPESP: 18/15425-0 - Uma abordagem multidisciplinar para o estudo da diversificação dos anfíbios: fase 2
• Beneficiário: Taran Grant
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2
• Processo FAPESP: 22/02789-0 - Biodiversidade desaparecida na era genômica: contribuições do DNA histórico à sistemática de pererecas raras e extintas
• Beneficiário: Daniel Yudi Miyahara Nakamura
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 18/18473-6 - Estudo de anatomia comparada e evolução do espinho pré-pólico em Anura (Chordata: Lissamphibia)
• Beneficiário: Paulo Durães Pereira Pinheiro
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 21/13764-5 - Preenchendo as lacunas para o pré-polex em forma de espinho nos sapos: a anatomia carpal de Centrolenidae e Microhylidae (Chordata: Lissamphibia: Anura)
• Beneficiário: Paulo Durães Pereira Pinheiro
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado