Acoustic allometry, background stream noise and its relationship with large-bodied and voiceless rheophilic frogs

Augusto‐Alves, Guilherme; Dena, Simone; Toledo, Luı́s Felipe

doi:10.1016/j.jcz.2021.10.004

Cited by 10 publications

(1 citation statement)

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“…, C. gaudichaudii and C. werneri ) and for most of Hylodes species as well ( e.g. , H. charadranaetes , H. glaber , and H. malhagaesi ) ( Augusto-Alves, Dena & Toledo, 2021 ). Among species of the other two groups recovered as a shifts, Huia cavitympanum for example present most of their communication through ultrasonic calls, ranging from 5 to 25 kHz ( Arch, Grafe & Narins, 2008 ), as do Wijayarana masonii (formerly H. masonii ) ( Boonman & Kurniati, 2011 ).…”

Section: Discussionmentioning

confidence: 99%

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

Maria,

Tonini,

Rebouças

et al. 2023

PeerJ

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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.

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Section: Discussionmentioning

confidence: 99%