The release call as a diagnostic character between cryptic related species &lt;i&gt;Odontophrynus cordobae&lt;/i&gt; and O. americanus (Anura: Cycloramphidae)

Grenat, Pablo Raúl; Martino, Adolfo Ludovico

doi:10.11646/zootaxa.3635.5.8

Cited by 11 publications

(6 citation statements)

References 10 publications

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“…Species with derived mating behavior without amplexus often lack release calls (e.g., Malagasy frogs in the subfamily Mantellinae; ; but see Willaert et al 2016 for release calls in Nyctibatrachidae), but this subcategory is in general observed across the majority of anuran families. Release calls can differ among closely related species (e.g., Castellano et al 2002a) and have been proposed as a possible taxonomic character (Grenat & Martino 2013). A special case is the post-oviposition male release call, emitted by the male during amplexus, after oviposition and prior to the release of the female.…”

Section: Functional Categories Of Anuran Vocalizationsmentioning

confidence: 99%

The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice

Köhler

Jansen

Rodríguez³

et al. 2017

Zootaxa

481

410

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Vocalizations of anuran amphibians have received much attention in studies of behavioral ecology and physiology, but also provide informative characters for identifying and delimiting species. We here review the terminology and variation of frog calls from a perspective of integrative taxonomy, and provide hands-on protocols for recording, analyzing, comparing, interpreting and describing these sounds. Our focus is on advertisement calls, which serve as premating isolation mechanisms and, therefore, convey important taxonomic information. We provide recommendations for terminology of frog vocalizations, with call, note and pulse being the fundamental subunits to be used in descriptions and comparisons. However, due to the complexity and diversity of these signals, an unequivocal application of the terms call and note can be challenging. We therefore provide two coherent concepts that either follow a note-centered approach (defining uninterrupted units of sound as notes, and their entirety as call) or a call-centered approach (defining uninterrupted units as call whenever they are separated by long silent intervals) in terminology. Based on surveys of literature, we show that numerous call traits can be highly variable within and between individuals of one species. Despite idiosyncrasies of species and higher taxa, the duration of calls or notes, pulse rate within notes, and number of pulses per note appear to be more static within individuals and somewhat less affected by temperature. Therefore, these variables might often be preferable as taxonomic characters over call rate or note rate, which are heavily influenced by various factors. Dominant frequency is also comparatively static and only weakly affected by temperature, but depends strongly on body size. As with other taxonomic characters, strong call divergence is typically indicative of species-level differences, whereas call similarities of two populations are no evidence for them being conspecific. Taxonomic conclusions can especially be drawn when the general advertisement call structure of two candidate species is radically different and qualitative call differences are thus observed. On the other hand, quantitative differences in call traits might substantially vary within and among conspecific populations, and require careful evaluation and analysis. We provide guidelines for the taxonomic interpretation of advertisement call differences in sympatric and allopatric situations, and emphasize the need for an integrative use of multiple datasets (bio-acoustics, morphology, genetics), particularly for allopatric scenarios. We show that small-sized frogs often emit calls with frequency components in the ultrasound spectrum, although it is unlikely that these high frequencies are of biological relevance for the majority of them, and we illustrate that detection of upper harmonics depends also on recording distance because higher frequencies are attenuated more strongly. Bioacoustics remains a prime approach in integrative taxonomy of anurans if uncertainty due to possible intraspecific variation and technical artifacts is adequately considered and acknowledged.

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Section: Functional Categories Of Anuran Vocalizationsmentioning

confidence: 99%

The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice

Köhler

Jansen

Rodríguez³

et al. 2017

Zootaxa

481

410

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“…In these cases, the authors did not find acoustic traits to distinguish the studied species. Nevertheless, the release call differed specifically among closely related species from other groups, and could be phylogenetically informative to distinguish different clades (Brown and Littlejohn 1972;Sullivan and Wagner Jr. 1988;di Tada et al 2001;Grenat and Martino 2013). In fact, differences in release calls have been used to separate species within Rhinella spinulosus group (di Tada et al 2001), and between Odontophrynus americanus and O. cordobae (Grenat and Martino 2013).…”

Section: Discussionmentioning

confidence: 99%

“…There are also males that emit release calls during physically aggressive interactions (Bastos and Haddad 1995;Brunetti et al 2015). Release calls are expected to have less selective pressures than advertisement calls (Brown and Littlejohn 1972), and for some cases of cryptic speciation, this call type is a valuable taxonomic tool (Castellano et al 2002;Grenat and Martino 2013).…”

Section: Introductionmentioning

confidence: 99%

Release calls of four species of Phyllomedusidae (Amphibia, Anura)

Mângia¹,

Camurugi²,

Pereira³

et al. 2019

Herpetozoa

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Anurans emit a variety of acoustic signals in different behavioral contexts during the breeding season. The release call is a signal produced by the frog when it is inappropriately clasped by another frog. In the family Phyllomedusidae, this call type is known only for Pithecophus ayeaye. Here we describe the release call of four species: Phyllomedusa bahiana, P. sauvagii, Pithecopus rohdei, and P. nordestinus, based on recordings in the field. The release calls of these four species consist of a multipulsed note. Smaller species of the Pithecopus genus (P. ayeaye, P. rohdei and P. nordestinus), presented shorter release calls (0.022-0.070 s), with higher dominant frequency on average (1508( .8-1651, when compared to the bigger Phyllomedusa (P. bahiana and P. sauvagii) (0.062-0.107 s; 798.7-1071.4 Hz). For phyllomedusid species, the release call might indicate a phylogenetic signal, because species of the same genus have similar acoustic traits.

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“…However, there are other types of less documented calls that can be emitted in social contexts and can permeate anuran reproduction, as well as the release calls, which can be produced by both males and non-receptive females when grabbed by another male (Duellman andTrueb 1994, Toledo et al 2015). Just like the advertisement calls, release calls have been useful to differ between close related species (Castellano et al 2002, Grenat andMartino 2013).…”

Section: Introductionmentioning

confidence: 99%

Reproductive notes and larval development of Macrogenioglottus alipioi (Anura: Odontophrynidae) from the northern Atlantic forest

et al. 2022

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The neotropical monotypic genus Macrogenioglottus, described to enclose M. alipioi, is a forest leaf litter frog with a wide geographic distribution in eastern Brazil, despite being considered a rare species. Herein, we present some reproductive data of this species from a population of the north of the São Francisco River, Northeastern Brazil. We present information on the amplexus, egg clutch, advertisement, and release calls, along with a description of its larval development. Adults were observed only after heavy and continuous rains, in a temporary pond located inside the forest. Males call in chorus at the edge of the pond. The advertisement call consists of a pulsatile single note, with no substantial variation in relation to the other population of the species, but which promptly differs this genus from the remaining Odontophrynidae. The amplexus is axillary. One female deposited 298 pigmented eggs in a plastic bag. The tadpole reaches its larger size at Stage 39, being the largest tadpole within the family. At the end of metamorphosis, the froglet snout–vent length is equivalent to tadpole total length at stage 26–27, indicating substantial postmetamorphic growth until adulthood. Data on body size of males and females are also provided. The uniqueness of some larval traits and mainly on some call attributes supports the systematic distinction of Macrogenioglottus.

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The release call as a diagnostic character between cryptic related species <i>Odontophrynus cordobae</i> and O. americanus (Anura: Cycloramphidae)

Cited by 11 publications

References 10 publications

The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice

The use of bioacoustics in anuran taxonomy: theory, terminology, methods and recommendations for best practice

Release calls of four species of Phyllomedusidae (Amphibia, Anura)

Reproductive notes and larval development of Macrogenioglottus alipioi (Anura: Odontophrynidae) from the northern Atlantic forest

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