Geographic variation in bird songs: examination of the effects of sympatric related species on the acoustic structure of songs

Hamao, Shoji; Sugita, Norimasa; Nishiumi, Isao

doi:10.1007/s10211-015-0228-6

Cited by 15 publications

(12 citation statements)

References 25 publications

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“…; Grant and Grant ; Hamao et al. ). However, song functions in a variety of contexts and is subject to a variety of selection pressures, meaning that further divergence is not the only possible outcome of sympatry.…”

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confidence: 98%

“…Rapid divergence in male songs and corresponding divergence of female song preferences in allopatry may create an important barrier to reproduction between closely related species coming into secondary contact (Price 2008). Further divergence when species come into secondary contact may result both from divergence due to ecological character displacement and/or direct selection on songs to differ to avoid costly interspecific interactions (Haavie et al 2004;Kirschel et al 2009;Grant and Grant 2010;Hamao et al 2015). However, song functions in a variety of contexts and is subject to a variety of selection pressures, meaning that further divergence is not the only possible outcome of sympatry.…”

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confidence: 99%

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Reproductive character displacement of female, but not male song discrimination in an avian hybrid zone

Wheatcroft

Qvarnström

2017

Evolution

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Divergence of male sexual signals and female preferences for those signals often maintains reproductive boundaries between closely related, co-occurring species. However, contrasting sources of selection, such as interspecific competition, can lead to weak divergence or even convergence of sexual signals in sympatry. When signals converge, assortative mating can be maintained if the mating preferences of females diverge in sympatry (reproductive character displacement; RCD), but there are few explicit examples. Pied flycatchers (Ficedula hypoleuca) are sympatric with collared flycatchers (F. albicollis) on the Baltic island of Öland, where males from both species compete over nestboxes, their songs converge, and the two species occasionally hybridize. We compare song discrimination of male and female pied flycatchers on Öland and in an allopatric population on the Swedish mainland. Using field choice trials, we show that male pied flycatchers respond similarly to the songs of both species in sympatry and allopatry, while female pied flycatchers express stronger discrimination against heterospecific songs in sympatry than in allopatry. These results are consistent with RCD of song discrimination of female pied flycatchers where they co-occur with collared flycatchers, which should maintain species assortative mating despite convergence of male sexual signals.

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confidence: 98%

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confidence: 99%

Reproductive character displacement of female, but not male song discrimination in an avian hybrid zone

Wheatcroft

Qvarnström

2017

Evolution

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“…Several examples demonstrating divergence in acoustic signals between closely-related species can be found in different sound-producing taxa such as arthropods23, anurans456, birds78 and mammals910. These differences would correspond to adaptations to different constraints and could help interspecies discrimination, preventing interbreeding.…”

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confidence: 99%

Interspecific variation of warning calls in piranhas: a comparative analysis

Mélotte

Vigouroux

Michel

et al. 2016

Sci Rep

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Fish sounds are known to be species-specific, possessing unique temporal and spectral features. We have recorded and compared sounds in eight piranha species to evaluate the potential role of acoustic communication as a driving force in clade diversification. All piranha species showed the same kind of sound-producing mechanism: sonic muscles originate on vertebrae and attach to a tendon surrounding the bladder ventrally. Contractions of the sound-producing muscles force swimbladder vibration and dictate the fundamental frequency. It results the calling features of the eight piranha species logically share many common characteristics. In all the species, the calls are harmonic sounds composed of multiple continuous cycles. However, the sounds of Serrasalmus elongatus (higher number of cycles and high fundamental frequency) and S. manueli (long cycle periods and low fundamental frequency) are clearly distinguishable from the other species. The sonic mechanism being largely conserved throughout piranha evolution, acoustic communication can hardly be considered as the main driving force in the diversification process. However, sounds of some species are clearly distinguishable despite the short space for variations supporting the need for specific communication. Behavioural studies are needed to clearly understand the eventual role of the calls during spawning events.

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“…Given that H. r. tytleri greatly outnumbered H. r. rustica in villages where they both occurred (and were behaviourally dominant, based on local accounts), we might have expected rustica males to shift song parameters towards tytleri for mate attraction if homotypic mates are in short supply, or away from tytleri to minimize aggression. Such asymmetric patterns of character displacement have been shown in several bird taxa (Haavie et al, 2004;Halfwerk et al, 2016;Hamao, Sugita & Nishiumi, 2016). Instead, the lack of any song trait changes in the contact zone relative to flanking allopatric populations, together with evidence of very limited ongoing hybridization (Scordato et al, 2017), suggests that there has been no selection for increased divergence.…”

Section: Effect Of Subspecies Sympatry On Song Divergencementioning

confidence: 80%

“…(Amézquita et al, 2011;Pasch et al, 2017). Also, patterns of reproductive character displacement will depend on the costs of hybridization Convergence: birds (Secondi et al, 2003;Haavie et al, 2004;Qvarnström et al, 2006;Tobias & Seddon, 2009;Kenyon, Toews & Irwin, 2011) Divergence: birds (Haavie et al, 2004;Kirschel et al, 2009b;Halfwerk et al, 2016;Hamao et al, 2016), frogs (Blair, 1955;Höbel & Gerhardt, 2003;Hoskin et al, 2005;Lemmon, 2009) and insects (Marshall & Cooley, 2000;Jang & Gerhardt, 2006); review (Gerhardt, 2013) Listed examples are intended to be rigorous but not comprehensive.…”

Section: Ethical Notementioning

confidence: 99%

Global song divergence in barn swallows (Hirundo rustica): exploring the roles of genetic, geographical and climatic distance in sympatry and allopatry

Wilkins

Scordato

Semenov

et al. 2018

Biological Journal of the Linnean Society

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Divergence in acoustic signals plays an important role in the production and maintenance of biodiversity in numerous taxa. In this study, we assess patterns of acoustic divergence in geographically isolated and sympatric subspecies of barn swallows (Hirundo rustica), including analyses of whether song differentiation varies with geographical isolation, genetic distance and climatic distance. We provide the first description of geographical variation in song among five of six currently recognized barn swallow subspecies. Temporal traits describing terminal trills were the most distinct song traits among subspecies, adding to growing evidence that trills are important in speciation among many birds, insects and fish. Across a ~6000 km transect of Russia, acoustic distance was predicted by genetic and geographical distance, but not climatic distance. We also found no reproductive character displacement of song traits in a contact zone between H. r. rustica and H. r. tytleri. Based on patterns discovered in this study, we infer an important role of sexual selection, genetic and/or cultural drift in the gradual build-up of acoustic divergence, which is accelerated in small populations.

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Geographic variation in bird songs: examination of the effects of sympatric related species on the acoustic structure of songs

Cited by 15 publications

References 25 publications

Reproductive character displacement of female, but not male song discrimination in an avian hybrid zone

Reproductive character displacement of female, but not male song discrimination in an avian hybrid zone

Interspecific variation of warning calls in piranhas: a comparative analysis

Global song divergence in barn swallows (Hirundo rustica): exploring the roles of genetic, geographical and climatic distance in sympatry and allopatry

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