Acoustic communication in two species of the Hypsiboas albopunctatus group (Anura: Hylidae) in sympatry and allopatry

Vieira, Raísa Romênia Silva; Guerra, Vinícius

doi:10.1590/s1984-4689zool-20150037

Cited by 6 publications

(4 citation statements)

References 22 publications

(13 reference statements)

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“…As in this study, the relationship between spectral and temporal parameters and morphological variables is frequently documented in anurans (Bastos et al, 2011;Gambale et al, 2014;Vieira et al, 2016;Sulbáran et al, 2018). We found a positive correlation between body size and pulse duration of the advertisement call.…”

Section: Sources Of Variation In Acoustic Parameterssupporting

confidence: 60%

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Acoustic variability among male gladiator frogs, Boana goiana (Lutz, 1968) (Anura: Hylidae): an 18-year analysis across several reproductive seasons

et al. 2020

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Male anurans emit different call types in specific social contexts. Such calls represent a communication pathway for species recognition, mate choice, and male-male competition mediation. The acoustic parameters of these calls can be under directional and/or stabilizing selection due to female choice, which influences intra- and inter-individual call variation. Herein, we investigated the inter-year variation of the advertisement and aggressive calls of the gladiator frog Boana goiana, analysing a temporal series encompassing 18 years of sampling (1996-2014). We measured and analysed the following acoustic parameters: call duration, call repetition rate, number of pulses, pulse duration, pulse repetition rate, and dominant frequency. For both call types, the dominant frequency was classified as a static parameter (CVintra < 5%), while call duration was a dynamic parameter (CVintra > 12%). The advertisement call of B. goiana presents the attributes that could allow individual recognition in the chorus, and we suggest that the aggressive calls might also be important for the individual recognition process. Pulse duration of the advertisement and aggressive calls decreased over the years, as well as the repetition rate of the aggressive calls, which could be related to male body size decrease over the years probably related to habitat alteration. This study provides data on the variation of anuran acoustic features over the longest time span ever analysed. Such studies are less invasive and useful for conservation purposes, since they can detect changes in the reproductive behaviour of populations that might be under environmental modification pressure.

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Section: Sources Of Variation In Acoustic Parameterssupporting

confidence: 60%

“…Body size is a variable obtained from the multiplication of SVL and body mass of individuals. We decided to use this approach because it allows us to reduce the collinearity of these morphological variables (Gambale et al, 2014;Vieira et al, 2016). Calculated values of body size ranged from 27.61 to 65.03.…”

Section: Statistical Analysesmentioning

confidence: 99%

Acoustic variability among male gladiator frogs, Boana goiana (Lutz, 1968) (Anura: Hylidae): an 18-year analysis across several reproductive seasons

et al. 2020

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“…Third, territorial behaviour may also favour increased calling activity and, consequently, central roles of the species attending choruses. Here, in both rainy and dry seasons, the species with higher centrality scores were territorial frogs, namely B. faber (Martins, 1993; Martins & Haddad, 1988), B. albopunctata (Furtado et al., 2016; Guerra et al., 2018; Vieira et al., 2016) and B. lundii (Furtado, 2017), suggesting that territorial behaviour influences the role of species within the network. In these species, the advertisement calls can play a double function of attracting females and deter competitors by signalling the presence, motivation and physical attributes to rival males.…”

Section: Discussionmentioning

confidence: 91%

Structure and dynamics of mixed‐species choruses in a tropical anuran assemblage: insights from network analysis

et al. 2021

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Males of a wide variety of vertebrates aggregate in mixed‐species choruses to attract females and signal territory occupancy. It is often assumed that species within these choruses co‐signal, interact and compete for the acoustic space, although few studies have tested this assumption, particularly in tropical and highly diverse environments. Using a novel combination of passive acoustics and network analysis, we monitored calling activity of a tropical anuran assemblage for an entire year and examined the structure and dynamics of mixed‐species choruses. Species composition was determined at 1‐min resolution on 288 recording hours and then used to estimate a set of centrality metrics (degree, strength and eigenvector) that characterize the species roles within the acoustic network. The studied assemblage formed a dynamic network comprising eight species during the rainy season and four during the dry season. These species showed distinct roles within the network, ranging from central species (those co‐signalling frequently and with many species) to peripheral species (those barely co‐signalling and with few species). Our results shed light on the species interactions in acoustic communities and challenge the general assumption of an equal contribution of species to the mixed‐species choruses. While in the rainy season the territorial frogs Boana albopunctata and B. faber exhibit the most prominent role within the network (with a higher degree, strength and eigenvector centrality), all of the species calling in the dry season co‐signalled with equal number of species, with only another territorial species, B. lundii, showing a higher rate of co‐signalling events (higher strength and eigenvector centrality). This suggests that territorial behaviour may favour increased calling activity and hence central roles in acoustic networks. These findings contribute to a better understanding of chorus dynamics in tropical assemblages and have crucial implications for the study of species interactions and the evolutionary hypotheses of acoustic divergence.

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“…Besides the advertisement call being an honest indication of position, body size, body temperature or energetic condition of the calling male [ 13 ], it incorporates characteristics for species recognition, serving as an essential criterion in female choice [ 13 , 14 ], although acoustic signals can also attract the attention of predators [ 30 , 31 ]. Moreover, species may compete for calling sites or acoustic space during breeding season, leading to competitive exclusion [ 32 ] or changes in acoustic parameters of their advertisement calls [ 33 ]. Thus, such acoustic signals may be a prominent trait in studies on community ecology and functional diversity.…”

Section: Introductionmentioning

confidence: 99%

The advertisement calls of Brazilian anurans: Historical review, current knowledge and future directions

et al. 2018

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Advertisement calls are often used as essential basic information in studies of animal behaviour, ecology, evolution, conservation, taxonomy or biodiversity inventories. Yet the description of this type of acoustic signals is far to be completed, especially in tropical regions, and is frequently non-standardized or limited in information, restricting the application of bioacoustics in science. Here we conducted a scientometric review of the described adverstisement calls of anuran species of Brazil, the world richest territory in anurans, to evaluate the amount, standard and trends of the knowledge on this key life-history trait and to identify gaps and directions for future research strategies. Based on our review, 607 studies have been published between 1960 to 2016 describing the calls of 719 Brazilian anuran species (68.8% of all species), a publication rate of 10.6 descriptions per year. From each of these studies, thirty-one variables were recorded and examined with descriptive and inferential statistics. In spite of an exponential rise over the last six decades in the number of studies, described calls, and quantity of published metadata, as revealed by regression models, clear shortfalls were identified with regard to anuran families, biomes, and categories of threat. More than 55% of these species belong to the two richest families, Hylidae or Leptodactylidae. The lowest percentage of species with described calls corresponds to the most diverse biomes, namely Atlantic Forest (65.1%) and Amazon (71.5%), and to the IUCN categories of threat (56.8%), relative to the less-than-threatened categories (74.3%). Moreover, only 52.3% of the species have some of its calls deposited in the main scientific sound collections. Our findings evidence remarkable knowledge gaps on advertisement calls of Brazilian anuran species, emphasizing the need of further efforts in standardizing and increasing the description of anuran calls for their application in studies of the behaviour, ecology, biogeography or taxonomy of the species.

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Acoustic communication in two species of the Hypsiboas albopunctatus group (Anura: Hylidae) in sympatry and allopatry

Cited by 6 publications

References 22 publications

Acoustic variability among male gladiator frogs, Boana goiana (Lutz, 1968) (Anura: Hylidae): an 18-year analysis across several reproductive seasons

Acoustic variability among male gladiator frogs, Boana goiana (Lutz, 1968) (Anura: Hylidae): an 18-year analysis across several reproductive seasons

Structure and dynamics of mixed‐species choruses in a tropical anuran assemblage: insights from network analysis

The advertisement calls of Brazilian anurans: Historical review, current knowledge and future directions

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