Variation in the ecstatic display call of the Gentoo Penguin (<i>Pygoscelis papua</i>) across regional geographic scales

Lynch, Maureen; Lynch, Heather J.

doi:10.1642/auk-17-4.1

Cited by 9 publications

(3 citation statements)

References 22 publications

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“…Geographic variation in bird vocalizations is common, and may affect mate choice, pair bonding, and territory defense in both passerine species such as stonechat Saxicola torquata (Mortega et al, 2014) and coal tit Periparus ater (Pentzold et al 2016), and also non-passerine species such as gentoo penguin Pygoscelis papua (Lynch and Lynch, 2017) and corncrake Crex crex (Budka and Osiejuk, 2017). One of the more common patterns in bird acoustic geographic variation can be described in terms of the 'isolation by distance' model (Podos and Warren, 2007), in which vocalization differences in paired populations increase with the distance between those populations (Irwin, 2000;Xing et al, 2013).…”

Section: Geographical Variation In Female Cuckoo Callsmentioning

confidence: 99%

Components of variation in female common cuckoo calls

Deng

Lloyd

Xia

et al. 2019

Behavioural Processes

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Investigations on bird vocalizations have largely focused on males. Female vocalizations are widespread in birds but few studies have investigated female vocal characteristics, particularly in non-Passeriformes. In this study, we use new field recordings from China, and calls available from an online sound library to examine temporal patterns, call consistency and geographical variation in vocalizations of female common cuckoos Cuculus canorous. The peak in vocal activity (both male and female) was in the morning, which contrasts to what would be predicted if the sole function of the female call was to distract the attention of hosts after parasitizing a host's nest in the afternoon. Both male and female common cuckoos were more vocally active in sunny weather, than rainy weather. We also found larger intra-individual variation in female rather than in male calls, which may benefit female cuckoos by increasing stimulation to host species. Peak frequency of female calls decreased with increased latitude, while differences in female call features were not associated with geographic distance. In summary, our findings that female calls are used in the morning, rather than at peak egg laying, yet are highly variable and show little geographic patterns suggest that the function of these female calls may be more variable and intricate than previously thought. However, because research on female vocalizations is underrepresented, future studies are still needed.

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Section: Geographical Variation In Female Cuckoo Callsmentioning

confidence: 99%

Components of variation in female common cuckoo calls

Deng

Lloyd

Xia

et al. 2019

Behavioural Processes

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“…Individuals measured from Kerguelen and Macquarie Islands were found to be statistically indistinguishable in this study and were different only slightly from those from South Georgia and the Falkland Islands, and therefore were also included in the nominate northern subspecies P. p. papua (Stonehouse, 1970). A recent study found support for a new clade in the sub‐Antarctic Indian Ocean based on morphological analyses but was not formally assigned to a new subspecies (de Dinechin et al., 2012) while investigations into geographic variation in gentoo vocalizations found no patterns connected with regions or subspecies (Lynch & Lynch, 2017).…”

Section: Introductionmentioning

confidence: 99%

Morphometric and genetic evidence for four species of gentoo penguin

Tyler

Bonfitto

Clucas

et al. 2020

Ecology and Evolution

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“…Studies on the topic of geographical variability in bird acoustic performance have been performed for both song-learning species [61][62][63][64][65][66], and species with innate vocalizations, including orders Gruiformes, Psittaciformes, and Sphenisciformes [67][68][69][70]. Although there have been cases with landfowl that suggest that the evolution of vocal expression in these species may also be affected by encounters [71], it is thought that the black grouse does not belong to the group of song-learning birds.…”

Section: Discussionmentioning

confidence: 99%

Black Grouse Hissing Calls Show Geographic Variability across the Distribution Area

Hambálková

Policht

Cukor

et al. 2023

Animals

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The black grouse is a species whose population development requires constant monitoring due to a rapidly declining trend, especially in Central Europe. Variability in the voices of geographically separated populations can aid in counting within individual populations. This has been investigated with the black grouse. However, the variability of the acoustic behavior of black grouse between populations was investigated for the first time. In total, 82 male black grouse were recorded during the lekking season in four countries: the Czech Republic, Scotland, Finland, and Russia. We analyzed recordings of hissing calls, i.e., the non-vocal signal. DFA analysis correctly classified almost 70% of the recordings. The results indicate a certain degree of difference between the grouse populations from the four countries examined. The mean frequency of hissing calls for populations was 1410.71 ± 170.25 Hz, 1473.89 ± 167.59 Hz, 1544.38 ± 167.60 Hz, and 1826.34 ± 319.23 Hz in the Czech Republic, Finland, Russia, and Scotland, respectively. Populations from Scotland and Russia have greater intra-variability compared to grouse from the Czech Republic and Finland, indicating that population density is not the principal factor in the geographical variability of black grouse hissing calls. Range-level differences enhance knowledge and facilitate the assessment of species evolution.

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Variation in the ecstatic display call of the Gentoo Penguin (Pygoscelis papua) across regional geographic scales

Cited by 9 publications

References 22 publications

Components of variation in female common cuckoo calls

Components of variation in female common cuckoo calls

Morphometric and genetic evidence for four species of gentoo penguin

Black Grouse Hissing Calls Show Geographic Variability across the Distribution Area

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