Long distance calls: Negligible information loss of little auk social vocalisations due to high frequency propagation losses DOI Creative Commons
Anna N. Osiecka, Przemysław Bryndza, Elodie F. Briefer

и другие.

PLoS Computational Biology, Год журнала: 2024, Номер 20(12), С. e1011961 - e1011961

Опубликована: Дек. 2, 2024

How well does the information contained in vocal signals travel through environment? To assess efficiency of transfer little auk ( Alle alle , an Arctic seabird) calls over distance, we selected two social call types with highest potential for individuality coding. Using available recordings known individuals, calculated apparent source levels, maximum peak sound pressure level (ASPL) 63 dB re 20 μPa at 1 m both types. Further, created a attenuation model using meteorological data collected vicinity colony Hornsund, Spitsbergen. this model, modelled to reflect higher frequency filtering and loss occurring during spherical spreading perfect local conditions, down putative hearing threshold species, equal ASPL “propagated” roughly one kilometre. Those were then used permuted discriminant function analysis, support vector machine models, linear models Beecher’s statistic, investigate whether transmission will affect retention individual signal. Calls could be correctly classified individuals above chance independently physiological threshold. Interestingly, capacity signal did not decrease its attenuation. While study touches on properties purely cannot provide evidence actual use by animals, it shows that can theoretically long distances negligible loss, supports hypothesis vocalisations facilitate long-distance communication species.

Язык: Английский

Calls of the little auk (Alle alle) chicks reflect their behavioural contexts DOI Creative Commons
Anna N. Osiecka, Elodie F. Briefer, Dorota Kidawa

и другие.

PLoS ONE, Год журнала: 2024, Номер 19(2), С. e0299033 - e0299033

Опубликована: Фев. 23, 2024

Animal vocalisations can often inform conspecifics about the behavioural context of production and underlying affective states, hence revealing whether a situation should be approached or avoided. While this is particularly important for socially complex species, little known expression in wild colonial animals, even less to their young. We studied auk ( Alle alle ) chicks Hornsund breeding colony, Svalbard. Little auks are highly seabirds, adults convey contexts through calls. recorded chick calls during two opposite valence: handing by human, while they interact with parents inside nest. Using permuted discriminant function analysis series linear mixed models, we examined effect context/associated valence on acoustic parameters those Calls were reliably classified context, over 97% accuracy. uttered handling had higher mean entropy, fundamental frequency, as well lower spectral centre gravity steep slope compared produced interactions parent The individuality calls, assessed information content, was than These findings suggest that seabird effectively communicate behavioural/affective conveying messages early development. Our results mostly line emotional patterns observed across taxa, supporting evolutionary continuity.

Язык: Английский

Процитировано

2
Vocal repertoire and individuality in the plains zebra ( Equus quagga ) DOI Creative Commons
Bing Xie, Virgile Daunay, T. C. Petersen

и другие.

Royal Society Open Science, Год журнала: 2024, Номер 11(7)

Опубликована: Июль 1, 2024

Acoustic signals are vital in animal communication, and quantifying them is fundamental for understanding behaviour ecology. Vocalizations can be classified into acoustically functionally or contextually distinct categories, but establishing these categories challenging. Newly developed methods, such as machine learning, provide solutions classification tasks. The plains zebra known its loud specific vocalizations, yet limited knowledge exists on the structure information content of vocalzations. In this study, we employed both feature-based spectrogram-based algorithms, incorporating supervised unsupervised learning methods to enhance robustness categorizing vocalization types. Additionally, implemented a permuted discriminant function analysis examine individual identity contained identified findings revealed at least four types—the ‘snort’, ‘soft snort’, ‘squeal’ ‘quagga quagga’—with differences observed mostly snorts, lesser extent squeals. Analyses based acoustic features outperformed those spectrograms, each excelled characterizing different We thus recommend combined use two approaches. This study offers valuable insights vocalization, with implications future comprehensive explorations communication.

Язык: Английский

Процитировано

2
Long distance calls: negligible information loss of seabird social vocalisations over propagation down to the hearing threshold DOI Creative Commons
Anna N. Osiecka, Przemysław Bryndza, Elodie F. Briefer

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Март 8, 2024

ABSTRACT How well does the information contained in vocal signals travel through environment? To assess efficiency of transfer little auk ( Alle alle, an Arctic seabird) calls over distance, we selected two social call types with highest potential for individuality coding. Using available recordings known individuals, calculated apparent source levels, maximum peak sound pressure level (ASPL) 63 dB re 20 µPa at 1 m both types. Further, created a propagation model using meteorological data collected vicinity colony Hornsund, Spitsbergen. this model, simulated up to putative hearing threshold species, equal ASPL propagated roughly one kilometre. Those were then used permuted discriminant function analysis, support vector machine models, and linear models Beecher’s statistic, investigate whether transmission loss will affect retention individual signal. Calls could be correctly classified individuals above chance independently down physiological threshold. Interestingly, capacity signal did not decrease propagation. While study touches on properties purely cannot provide evidence actual use by animals, it shows that can long distances negligible loss. For mean they recognize members their networks as far those are actually audible, hypothesis vocalisations facilitate long-distance communication species.

Язык: Английский

Процитировано

0
Long distance calls: Negligible information loss of little auk social vocalisations due to high frequency propagation losses DOI Creative Commons
Anna N. Osiecka, Przemysław Bryndza, Elodie F. Briefer

и другие.

PLoS Computational Biology, Год журнала: 2024, Номер 20(12), С. e1011961 - e1011961

Опубликована: Дек. 2, 2024

How well does the information contained in vocal signals travel through environment? To assess efficiency of transfer little auk ( Alle alle , an Arctic seabird) calls over distance, we selected two social call types with highest potential for individuality coding. Using available recordings known individuals, calculated apparent source levels, maximum peak sound pressure level (ASPL) 63 dB re 20 μPa at 1 m both types. Further, created a attenuation model using meteorological data collected vicinity colony Hornsund, Spitsbergen. this model, modelled to reflect higher frequency filtering and loss occurring during spherical spreading perfect local conditions, down putative hearing threshold species, equal ASPL “propagated” roughly one kilometre. Those were then used permuted discriminant function analysis, support vector machine models, linear models Beecher’s statistic, investigate whether transmission will affect retention individual signal. Calls could be correctly classified individuals above chance independently physiological threshold. Interestingly, capacity signal did not decrease its attenuation. While study touches on properties purely cannot provide evidence actual use by animals, it shows that can theoretically long distances negligible loss, supports hypothesis vocalisations facilitate long-distance communication species.

Язык: Английский

Процитировано

0