The advertisement call of the Colombian endemic glassfrog Rulyrana susatamai (Anura: Centrolenidae)

Zootaxa ◽  
2020 ◽  
Vol 4852 (5) ◽  
pp. 586-589
Author(s):  
CARLOS ALBERTO GALINDO ◽  
ANDRES VIUCHE-LOZANO ◽  
MANUEL HERNANDO BERNAL
Keyword(s):  
Sexual Selection ◽  
Reproductive Isolation ◽  
Species Recognition ◽  
Advertisement Call ◽  
Advertisement Calls

Anuran calls are conspicuous, diverse and subject to sexual selection. Many types of calls are described, but the most commonly studied is the advertisement call (Wells 2007; Toledo et al. 2014). Advertisement calls in anurans are emitted by males and some females (Toledo et al. 2014), and have the function of attracting conspecific mates and repelling male competitors. Because the advertisement calls of many species differ by such a magnitude that they serve as premating species (Heyer et al. 1996), it has been demonstrated that advertisement calls play an important role in species recognition, reproductive isolation, and may reflect evolutionary relations among taxa (Wells 2007; Escalona et al. 2018). 

Description of the advertisement call of a species without vocal sac: Craugastor gollmeri (Amphibia: Craugastoridae)

Zootaxa ◽  
2012 ◽  
Vol 3184 (1) ◽  
pp. 67-68 ◽  
Author(s):  
ROBERTO IBÁÑEZ D. ◽  
CÉSAR A. JARAMILLO A. ◽  
FRANK A. SOLÍS
Keyword(s):  
Costa Rica ◽  
Species Recognition ◽  
Species Group ◽  
Central American ◽  
Advertisement Call ◽  
Altitudinal Distribution ◽  
Advertisement Calls ◽  
The Pacific ◽  
In Captivity ◽  
Highland Forests

The Central American frogs of the genus Craugastor consist of 113 species (Hedges et al. 2008; Frost 2011). Craugastor gollmeri (Peters) occurs in lowland to highland forests of central Panama, the Caribbean versant of western Panama and eastern Costa Rica, even extending into the Pacific versant in northwestern Costa Rica, within an altitudinal distribution range of 10–1520 m (Savage 2002). At some localities, C. gollmeri has been found to be an usual to common forest species, being primarily a diurnal species that inhabits leaf-litter on the forest floor (Ibáñez et al. 1995; Savage 2002). The snout-vent length (SVL) of adult frogs is 30–36.5 mm in males and 45–54 mm in females (Savage 1987). The males of gollmeri species group lack vocal slits and vocal sac (Savage 1987), and seem incapable of producing vocalizations (Savage 2002). Nonetheless, here we describe the vocalizations given by a male of C. gollmeri in captivity, considered to be advertisement calls (sensu Wells 1977). The role of advertisement calls in species recognition and reproductive isolation has been well established (Wells 2007), hence, the relevance of call characters in anuran phylogenetic and systematic studies (e.g., Hoskin 2004).

scholarly journals Neural Basis of Acoustic Species Recognition in a Cryptic Species Complex

2021 ◽  
Author(s):  
Saumya Gupta ◽  
Rishi K. Alluri ◽  
Gary J. Rose ◽  
Mark A. Bee
Keyword(s):  
Reproductive Isolation ◽  
Cryptic Species ◽  
Temporal Processing ◽  
Species Differences ◽  
Species Recognition ◽  
Species Difference ◽  
Pulse Number ◽  
Neural Basis ◽  
Auditory Neurons ◽  
Advertisement Calls

ABSTRACTSexual traits that promote species recognition are important drivers of reproductive isolation, especially among closely related species. Identifying neural processes that shape species differences in recognition is crucial for understanding the causal mechanisms of reproductive isolation. Temporal patterns are salient features of sexual signals that are widely used in species recognition by several taxa, including anurans. Recent advances in our understanding of temporal processing by the anuran auditory system provide an excellent opportunity to investigate the neural basis of species-specific recognition. The anuran inferior colliculus (IC) consists of neurons that are selective for temporal features of calls. Of potential relevance are auditory neurons known as interval-counting neurons (ICNs) that are often selective for the pulse rate of conspecific advertisement calls. Here, we took advantage of a species differences in temporal selectivity for pulsatile advertisement calls exhibited by two cryptic species of gray treefrog (Hyla chrysoscelis and Hyla versicolor) to test the hypothesis that ICNs mediate acoustic species recognition. We tested this hypothesis by examining the extent to which the threshold number of pulses required to elicit behavioral responses from females and neural responses from ICNs was similar within each species but potentially different between the two species. In support of our hypothesis, we found that a species difference in behavioral pulse number thresholds corresponded closely to a parallel species difference in neural pulse number thresholds. However, this relationship held only for ICNs that exhibited band-pass tuning for conspecific pulse rates. Together, these findings suggest that differences in temporal processing of a subset of ICNs provide a mechanistic explanation for reproductive isolation between two cryptic and syntopically breeding treefrog species.Summary StatementTemporal processing by a subset of midbrain auditory neurons plays key roles in decoding information about species identity in anurans.

Advertisement call and geographical variation in call features of Dendropsophus berthalutzae (Anura: Hylidae) from the Atlantic Rainforest of southeastern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3310 (1) ◽  
pp. 66 ◽  
Author(s):  
LUCAS RODRIGUEZ FORTI ◽  
FÁBIO AUGUSTO MIGUEL MARTINS ◽  
JAIME BERTOLUCI
Keyword(s):  
Geographical Variation ◽  
Essential Role ◽  
Species Recognition ◽  
Acoustic Signals ◽  
Southeastern Brazil ◽  
Advertisement Call ◽  
Main Mode ◽  
Advertisement Calls ◽  
Species Specific ◽  
Important Character

Acoustic signals are the main mode of communication in anurans (Duellman & Trueb 1994). Calls produced by anurans play an essential role during their reproduction (Wells 1977) and advertisement calls emitted by males are, in many cases, species-specific, representing an important character for species recognition (Abrunhosa et al. 2001; Forti et al. 2010). Thus, the formal description of advertisement calls is relevant for anuran taxonomy (Pombal Jr. et al. 1995).

Bioacoustic analysis in Scinax hayii (Barbour, 1909) (Anura, Hylidae) at its type locality in Petrópolis, Rio de Janeiro, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4232 (4) ◽  
pp. 582 ◽  
Author(s):  
LUCAS RODRIGO DOS SANTOS ◽  
ITAMAR ALVES MARTINS
Keyword(s):  
Species Distribution ◽  
Morphological Variation ◽  
Rio De Janeiro ◽  
Type Locality ◽  
Advertisement Call ◽  
Advertisement Calls ◽  
Call Type ◽  
Bioacoustic Analysis

Scinax hayii was described in 1909 from the municipality of Petrópolis, State of Rio de Janeiro, Brazil. Morphological variation and advertisement calls have been previously reported for other populations across the species distribution (Lutz 1973; Heyer et al. 1990; Cardoso & Andrade 1991; Pombal et al. 1995; Magrini et al. 2011; Abrunhosa et al. 2014). However, no information on calls are available from specimens recorded at the type locality, preventing the correct characterization of the species (Magrini et al. 2011). Here we describe the advertisement call and a second call type of S. hayii from Petrópolis, as a contribution towards a better understanding of the taxonomy of this species. 

scholarly journals Morphologically cryptic Amazonian bird species pairs exhibit strong postzygotic reproductive isolation

2018 ◽  
Vol 285 (1874) ◽  
pp. 20172081 ◽  
Author(s):  
Paola Pulido-Santacruz ◽  
Alexandre Aleixo ◽  
Jason T. Weir
Keyword(s):  
Reproductive Isolation ◽  
Amazon Basin ◽  
Species Recognition ◽  
Bird Species ◽  
Hybrid Zones ◽  
Hybrid Index ◽  
Postzygotic Isolation ◽  
Genome Wide ◽  
Species Pairs ◽  
Hybrid Classes

We possess limited understanding of how speciation unfolds in the most species-rich region of the planet—the Amazon basin. Hybrid zones provide valuable information on the evolution of reproductive isolation, but few studies of Amazonian vertebrate hybrid zones have rigorously examined the genome-wide underpinnings of reproductive isolation. We used genome-wide genetic datasets to show that two deeply diverged, but morphologically cryptic sister species of forest understorey birds show little evidence for prezygotic reproductive isolation, but substantial postzygotic isolation. Patterns of heterozygosity and hybrid index revealed that hybrid classes with heavily recombined genomes are rare and closely match simulations with high levels of selection against hybrids. Genomic and geographical clines exhibit a remarkable similarity across loci in cline centres, and have exceptionally narrow cline widths, suggesting that postzygotic isolation is driven by genetic incompatibilities at many loci, rather than a few loci of strong effect. We propose Amazonian understorey forest birds speciate slowly via gradual accumulation of postzygotic genetic incompatibilities, with prezygotic barriers playing a less important role. Our results suggest old, cryptic Amazonian taxa classified as subspecies could have substantial postzygotic isolation deserving species recognition and that species richness is likely to be substantially underestimated in Amazonia.

scholarly journals The Reproductive Microbiome: An Emerging Driver of Sexual Selection, Sexual Conflict, Mating Systems, and Reproductive Isolation

2020 ◽  
Vol 35 (3) ◽  
pp. 220-234 ◽  
Author(s):  
Melissah Rowe ◽  
Liisa Veerus ◽  
Pål Trosvik ◽  
Angus Buckling ◽  
Tommaso Pizzari
Keyword(s):  
Sexual Selection ◽  
Reproductive Isolation ◽  
Sexual Conflict ◽  
Mating Systems

The advertisement call of the treefrog Nyctimantis rugiceps Boulenger, 1882 (Anura: Hylidae), with notes on its natural history and toxicity

Zootaxa ◽  
2018 ◽  
Vol 4532 (3) ◽  
pp. 441 ◽  
Author(s):  
CAMILA CAMARGO DE SOUZA ◽  
MAURICIO RIVERA-CORREA ◽  
JOSE M. PADIAL ◽  
SANTIAGO CASTROVIEJO-FISHER
Keyword(s):  
Life History ◽  
Natural History ◽  
Quantitative Description ◽  
Calling Behavior ◽  
Advertisement Call ◽  
Advertisement Calls ◽  
Call Duration ◽  
Egg Deposition ◽  
History Of ◽  
Santa Cecilia

Nyctimantis rugiceps Boulenger, 1882 (Fig. 1A) is a Neotropical treefrog (Duellman & Trueb 1976; Faivovich et al. 2005) known only from disjunct localities in Amazonian Colombia, Ecuador, and Peru (Pérez-Villota et al. 2009). This species has the skin of the skull co-ossified and reproduces—including calling behavior, egg deposition and tadpole development—in water-filled tree or bamboo cavities (Duellman & Trueb 1976; Duellman 1978). Given its secretive behavior, this is a poorly known species and, as noted by Duellman (1978: 169), “the major clue to the life history of Nyctimantis is the calling behavior of the males”. Unfortunately, the only quantitative description of the advertisement call of N. rugiceps is a brief passage in Duellman (1978) based on four specimens from Santa Cecilia, Ecuador, where important variables are missing (e.g., call duration). More importantly, graphs illustrating the waveform and spectrogram are missing. Considering these limitations and the importance of advertisement calls to the study of anurans (Köhler et al. 2017), we provide a quantitative description using a call recording obtained in Leticia, Amazonas, Colombia. 

A new species of Leptodactylus (Anura: Leptodactylidae) from the state of Espirito Santo, Brazil, with remarks on the systematics of associated populations

Zootaxa ◽  
2006 ◽  
Vol 1334 (1) ◽  
pp. 1 ◽  
Author(s):  
ANTONIO DE PADUA ALMEIDA ◽  
ARIADNE ANGULO
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Coastal Region ◽  
The State ◽  
Southeastern Brazil ◽  
Advertisement Call ◽  
Advertisement Calls ◽  
Espírito Santo ◽  
Espirito Santo ◽  
A New Species

Adults and tadpoles of a new species of the genus Leptodactylus are described from southeastern Brazil. Leptodactylus thomei sp.nov. can be found amidst the leaf litter within cocoa plantations along the northern coastal region of the state of Espírito Santo. It can be distinguished from other species of the Leptodactylus marmoratus group by its advertisement call, which is described, together with agonistic calls, and compared to advertisement calls of other species of the group that occur in southern and southeastern Brazil. The systematics of associated populations is discussed.

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