Hidden shifts in allometry scaling between sound production and perception in anurans.

Autor: Maria B; Laboratório de História Natural de Anfíbios Brasileiros, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil., Tonini JFR; Department of Biology, University of Richmond, Richmond, VA, United States of America., Rebouças R; Laboratório de História Natural de Anfíbios Brasileiros, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.; Laboratório de Ecologia Evolutiva de Anfíbios, Universidade Federal de Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.; Programa de Pós Graduação em Biologia Animal, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil., Toledo LF; Laboratório de História Natural de Anfíbios Brasileiros, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.
Jazyk: angličtina
Zdroj: PeerJ [PeerJ] 2023 Nov 03; Vol. 11, pp. e16322. Date of Electronic Publication: 2023 Nov 03 (Print Publication: 2023).
DOI: 10.7717/peerj.16322
Abstrakt: Background: Animal communication consists of signal production and perception, which are crucial for social interactions. The main form used by anurans is auditory communication, in most cases produced as advertisement calls. Furthermore, sound perception happens mainly through an external tympanic membrane, and plays an important role in social behavior. In this study, we evaluated the influence of body and tympanic membrane sizes on call frequency across the phylogeny of anurans.
Methods: We use data on snout-vent length, tympanic membrane diameter, and dominant frequency of the advertisement call from the literature and from natural history museum collections. We mapped these traits across the anuran phylogeny and tested different models of diversification. Our final dataset includes data on body size, tympanic membrane size, and call dominant frequency of 735 anuran species.
Results: The best explanatory model includes body and tympanum size with no interaction term. Although our results show that call frequency is strongly constrained by body and tympanum size, we identify five evolutionary shifts in allometry from that ancestral constraint. We relate these evolutionary shifts to the background noise experienced by populations. Body size is important for myriad ecological interactions and tympanum size is strongly associated with female call frequency preferences. Thus, allometric escape in frog calls might arise through environmental selection such as breeding in fast flowing or soundscape competition, as well as sexual selection linked to tympanum size.
Competing Interests: The authors declare there are no competing interests.
(©2023 Maria et al.)
Databáze: MEDLINE