What the canary can tell us about singing and the brain

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 201 - 227

Published: Jan. 1, 2024

Language: Английский

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Woodpecker drum evolution: An analysis of covariation in elements of a multicomponent acoustic display among and within species

Evolution, Journal Year: 2022, Volume and Issue: 76(7), P. 1469 - 1480

Published: June 6, 2022

Multicomponent signals are found throughout the animal kingdom, but how these elaborate displays evolve and diversify is still unclear. Here, we explore evolution of woodpecker drum display. Two components this territorial sexually selected signal, speed length, used by territory holders to assess threat level an intruding drummer. We coevolution display both among within species. Among species, find evidence for strong length. Within that length vary largely independent each other. However, in some there covariation certain portions distribution. The observed differences component at macro- microevolutionary scales highlight importance studying signal structure In all cases evolutionary scales, relationship between positive, indicating mutual elaboration not a performance trade-off.

Language: Английский

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Does the syrinx, a peripheral structure, constrain effects of sex steroids on behavioral sex reversal in adult canaries?

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: April 19, 2023

We previously confirmed that effects of testosterone (T) on singing activity and the volume brain song control nuclei are sexually differentiated in adult canaries: females limited their ability to respond T as males do. Here we expand these results by focusing sex differences production performance trills, i.e., rapid repetitions elements. analyzed more than 42,000 trills recorded over a period 6 weeks from 3 groups castrated photoregressed received Silasticâ"¢ implants filled with T, plus estradiol or left empty control. Effects number trill duration percent time spent trilling were all stronger females. Irrespective endocrine treatment, assessed vocal deviations rate versus bandwidth trade-off was also higher Finally, inter-individual syrinx mass positively correlated but not Given increases fiber diameter females, data indicate behavior related muscle cannot be fully reversed steroids adulthood. Sexual differentiation thus reflects organization only peripheral structures.

Language: Английский

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Syntactic modulation of rhythm in Australian pied butcherbird song

Royal Society Open Science, Journal Year: 2022, Volume and Issue: 9(9)

Published: Sept. 1, 2022

The acoustic structure of birdsong is spectrally and temporally complex. Temporal complexity often investigated in a syntactic framework focusing on the statistical features symbolic song sequences. Alternatively, temporal patterns can be rhythmic that focuses relative timing between elements. Here, we investigate merits combining both frameworks by integrating analyses Australian pied butcherbird ( Cracticus nigrogularis ) songs, which exhibit organized syntax diverse rhythms. We show rhythms bouts our sample are categorically predictable song’s first-order sequential syntax. These remain distributed strongly associated with even after controlling for variance note length, suggesting silent intervals notes induce discuss implication syntactic–rhythmic relations as relevant feature respect to signals such human speech music, advocate broader conception takes into account syntax, rhythm, their interaction other perceptual features.

Language: Английский

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Ecology and evolution of bird sounds

Current Biology, Journal Year: 2022, Volume and Issue: 32(20), P. R1100 - R1104

Published: Oct. 1, 2022

Language: Английский

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More than stridulation: signal interaction and constraint in the complex vibroacoustic courtship of a cricket

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 19, 2024

Crickets (Gryllidae) produce sounds by tegminal stridulation, extensively studied for its role in female attraction and choice. However, their close-range courtship song, along with additional chemical, visual, thermal signals, fails to clarify the observed preferences. Beyond crickets exhibit a range of vibrational behaviours that remain largely unexplored. In this study, using Acheta domesticus as model, we present first comprehensive analysis entire set vibroacoustic signals crickets, including interaction. Employing audio recording, laser vibrometry, videorecording, unveil complex signal involving simultaneous wing body tremulation, leg drumming against substrate. These components pattern regular exchange within specific time window relative each other. We show tightest coupling between two types stridulation pulses, tremulation supported linear corelation rates. The is less consistent, non-linear temporal association parameters revealing constraint on performance. Yet, performed high accuracy unrelated rate. Spectral-intensity indicates closest perceptual thus functional connection signal, while proposing another function Our data demonstrate information conveyed display A. not simply proportional potentially providing much more reliable basis

Language: Английский

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Enhancing Vocal Performance using Variational Onsager Neural Network and Optimized with Golden Search Optimization Algorithm

Applied Artificial Intelligence, Journal Year: 2024, Volume and Issue: 38(1)

Published: April 24, 2024

The Singing Muscle Ability Training System (SMATS) represents a cutting-edge technological solution dedicated to honing an individual's vocal prowess. By employing sophisticated combination of techniques, exercises, and methodologies, this system strategically targets cultivates the muscle groups integral singing. In its innovative approach, SMATS integrates Artificial Intelligence (AI) elevate capabilities further. proposed SMATS-AI-VONN-GSOA stands out by incorporating Variational Onsager Neural Network (VONN) alongside Golden Search Optimization Algorithm (GSOA). This amalgamation tailors training routines based on user's progress preferences, emphasizing development memory control for enhanced performance. Noteworthy is system's capacity analyze data through AI, enabling creation personalized plans. comparative evaluations, method demonstrates significant performance boost, surpassing existing methods like SMATS-AI-CNN, SMATS-AI-DNN, SMATS-AI-DNN-HSV 26.78%, 29.55%, 21.41% in accuracy, respectively.

Language: Английский

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Colony size as the main driver of the evolution of song diversity and composition in weaverbirds

Published: June 25, 2024

Birdsong is a complex signal shaped by multiple factors and has been explored most widely through the lens of sexual selection, but with mixed results. Here, we focus on evolution two song parameters, diversity, which studied, composition, poorly understood. We assessed potential role mating system as proxy in addition, investigated whether colony size, sociality, phylogenetic history influence these parameters weaverbirds family (Aves: Ploceidae). Using comparative path analyses find that, expected, species living larger colonies present greater diversity had similar composition. However, contrary to expectations, polygamous do not higher nor more acoustic composition than monogamous species. A relatively high effect phylogeny was detected both variables. Our results thus suggest this family, sociality stronger driver selection. These findings highlight importance multifaceted approach when studying bird relevance sociality.

Language: Английский

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Pervasive patterns in the songs of passerine birds resemble human music universals and are linked with production and cognitive mechanisms

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: July 17, 2024

Abstract Music is a complex learned behavior that ubiquitous among humans, and many musical patterns are shared across geography cultures (“music universals”). Knowing whether these universals specific to humans or with other animals important understand how production-related factors (motor biases constraints) cognitive (learning) contribute the emergence of acoustic patterns. Bird song often described as an animal analogue human music, some studies individual avian species highlight similarities between bird music. However, expansive comparative approaches necessary identify universal within song, reveal mechanisms associated patterns, draw parallels music universals. Here, we adopt such approach analyze prevalence (sequences) ∼300 passerines, spanning both oscines (songbirds; vocal learners) their sister clade, suboscines (passerines produce songs not learned), well global corpus This allowed us directly test hypotheses phonation learning shape We first document were widely passerines similar (e.g., small pitch intervals), highlighting role production in Consistent contribution learning, observed alternation durations) there more than humans. Interestingly, also discovered alternation) inconsistent research provides broadest evidence performance birds highlights convergent shaping communication

Language: Английский

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Song determined by phylogeny and body mass in two differently constrained groups of birds: manakins and cardinals

BMC Ecology and Evolution, Journal Year: 2024, Volume and Issue: 24(1)

Published: Aug. 19, 2024

The songs of birds are complex signals that may have several functions and vary widely among species. Different ecological, behavioural morphological factors, as well phylogeny, been associated predictors the evolution song structure. However, importance differences in development, despite their relevance, has seldom considered. Here, we analysed two families songbirds differ manakins (suboscines) cardinals (oscines), with morphology, ecology. Our results show characteristics had higher phylogenetic signal than manakins, suggesting evolutionary lability suboscines. Body mass was main predictor parameters together habitat type, a major effect on cardinals' Precipitation altitude were also some cardinals. bring unexpected insights into birdsong evolution, which non-learners (manakins) revealed greater learners (cardinals).

Language: Английский

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