Birdsong performance studies: a contrary view

Animal Behaviour, Journal Year: 2017, Volume and Issue: 125, P. e1 - e16

Published: Jan. 19, 2017

Language: Английский

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Age-related changes and vocal convergence in titi monkey duet pulses

Behaviour, Journal Year: 2019, Volume and Issue: 156(15), P. 1471 - 1494

Published: Jan. 1, 2019

Abstract Duets in pair-bonding primates serve as a primary mode of communication between pairs, and duets may provide cues to conspecifics regarding the calling individual or pair. Here, we test hypothesis that pulse elements coppery titi monkey vary with condition identity caller. We predicted would age, sex, pair-bond length. estimated rate duration for 378 from 74 captive monkeys ( Plecturocebus cupreus ). found inter-individual variation both features, evidence vocal convergence among pair mates rate. Age was best predictor rate, decreased age. length reliably duration. Our results suggest reflects differences caller identity, contribute growing plasticity nonhuman primates.

Language: Английский

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Evidence for vocal performance constraints in a female nonhuman primate

Animal Behaviour, Journal Year: 2018, Volume and Issue: 141, P. 85 - 94

Published: June 12, 2018

Language: Английский

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Vocal Performance in Songbirds: From Mechanisms to Evolution

Springer handbook of auditory research, Journal Year: 2020, Volume and Issue: unknown, P. 245 - 268

Published: Jan. 1, 2020

Language: Английский

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Conspecific density and habitat quality drive the defence and vocal behaviour of a territorial passerine

Ibis, Journal Year: 2023, Volume and Issue: 166(3), P. 826 - 843

Published: Dec. 15, 2023

Territorial defence depends on highly interrelated factors such as food abundance and conspecific density. We used Dupont's Lark Chersophilus duponti a model species to evaluate the response of territorial bird foreign male playback, examining how density, habitat quality body condition impact responses. The study was conducted in central Spain with variable Response (yes/no), latency time, distance playback speaker, number songs other vocalizations were monitored for 5 min. Habitat estimated using BlueNDVI vegetation index extracted from high‐resolution drone imagery, which is proxy arthropod prey biomass. Conspecific density (Kernel Density Estimator) calculated assess their effect intensity. applied generalized linear mixed models (GLMMs) determine predicted its There greater probability areas higher conspecifics poorer (i.e. lower values). In contrast, time longer Intrasexual communication (singing calling rates) increased quality. Intraspecific (other vocalizations) habitats at conspecifics. Body not related any variables. Our results suggest that sometimes an indicator area being well conserved species, may reflect occupied by unpaired floater males, whereas paired males would occupy defend areas, leading

Language: Английский

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Fighting talk: complex song elicits more aggressive responses in a vocally complex songbird

Ibis, Journal Year: 2017, Volume and Issue: 160(2), P. 257 - 268

Published: Sept. 30, 2017

Song complexity in many songbirds is a trait subject to sexual selection. It often associated with male territorial defence. Empirical studies testing differential responses rival song vocally complex have, however, been scarce. We conducted playback experiments of the endemic New Zealand Tui Prosthemadera novaeseelandiae test aggressive response songs differing levels. Overall, evoked significantly stronger from males than did simple songs. Following songs, focal approached more closely and rapidly, responded higher they This suggests could both distinguish between different levels within repertoire, perceive as greater threat. Our study one first demonstrate strong increased songbird species highly vocalizations.

Language: Английский

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Northern House Wren (Troglodytes aedon)

Birds of the World, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Language: Английский

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Information theory reveals that individual birds do not alter song complexity when varying song length

Animal Behaviour, Journal Year: 2013, Volume and Issue: 87, P. 153 - 163

Published: Nov. 21, 2013

Language: Английский

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Measuring consistency: spectrogram cross-correlation versus targeted acoustic parameters

Bioacoustics, Journal Year: 2013, Volume and Issue: 22(3), P. 247 - 257

Published: May 2, 2013

Abstract Several recent studies indicate that the consistency of song or syllable repetitions signals male quality. However, comparability and efficacy different measurement methods is not known. Here, I compared two approaches to measuring within trills House Wren (Troglodytes aedon) songs. In first approach, calculated coefficient variation (CV) in standard time–frequency measurements each trill. second used spectrogram cross-correlation (SPCC), which measures maximum pixel-by-pixel similarity spectrograms. The gave correlated estimates trill consistency, but SPCC was more strongly related putatively biologically relevant traits: specifically, differed between age classes, could be attributed individual differences. CV-based complemented by clarifying some specific acoustic features whose changed with age. Although additional comparisons would useful assess generality, it appears researchers interested should consider using an SPCC, a combined SPCC- CV-based, approach. Keywords: consistencyspectrogram cross-correlationcoefficient variationtrillssongbirds Acknowledgements Cornell Research Ponds allowed me access field site. Katie Baird, Eileen McIver, Noelle Chaine, Natalie Koscal, Caroline Rusk, Rebecca Fellman, Nikki Thompson Carly Hodes assisted sound analysis fieldwork. Dean Hawthorne provided Raven plug-in for broader frequency bandwidth measure. Sandy Vehrencamp, Emma Greig, Peter McGregor anonymous reviewers discussion and/or comments on previous version manuscript. Funding from Lab Ornithology, American Ornithologists' Union, Animal Behavior Society, Sigma Xi Chapter, NSF predoctoral fellowship Department Neurobiology Behavior. All protocols were approved University Institutional Care Use Committee (Protocol 2007-0123), appropriate banding permits (Federal Bird Banding permit subpermittee under Sandra 20954; New York State License Collect Possess, 1231).

Language: Английский

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No evidence that sperm morphology predicts paternity success in wild house wrens

Behavioral Ecology and Sociobiology, Journal Year: 2013, Volume and Issue: 67(11), P. 1845 - 1853

Published: July 19, 2013

Language: Английский

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