Publikation: Mapping vocal interactions in space and time differentiates signal broadcast versus signal exchange in meerkat groups
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Animal vocal communication research traditionally focuses on acoustic and contextual features of calls, yet substantial information is also contained in response selectivity and timing during vocalization events. By examining the spatiotemporal structure of vocal interactions, we can distinguish between ‘broadcast’ and ‘exchange’ signalling modes, with the former potentially serving to transmit signallers’ general state and the latter reflecting more interactive signalling behaviour. Here, we tracked the movements and vocalizations of wild meerkat (Suricata suricatta) groups simultaneously using collars to explore this distinction. We found evidence that close calls (used for maintaining group cohesion) are given as signal exchanges. They are typically given in temporally structured call–response sequences and are also strongly affected by the social environment, with individuals calling more when they have more neighbours and juveniles responding more to adults than the reverse. In contrast, short note calls appear mainly in sequences produced by single individuals and show little dependence on social surroundings, suggesting a broadcast signalling mode. Despite these differences, both call categories show similar clustering in space and time at a group level. Our results highlight how the fine-scale structure of vocal interactions can give important insights into the usage and function of signals in social groups. This article is part of the theme issue ‘The power of sound: unravelling how acoustic communication shapes group dynamics.'
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DEMARTSEV, Vlad, Baptiste AVERLY, Lily JOHNSON-ULRICH, Vivek H. SRIDHAR, Leonardos LEONARDOS, Alexander Q. VINING, Mara THOMAS, Marta B. MANSER, Ariana STRANDBURG-PESHKIN, 2024. Mapping vocal interactions in space and time differentiates signal broadcast versus signal exchange in meerkat groups. In: Philosophical Transactions of the Royal Society B : Biological Sciences. The Royal Society. 2024, 379(1905), 20230188. ISSN 0962-8436. eISSN 1471-2970. Verfügbar unter: doi: 10.1098/rstb.2023.0188BibTex
@article{Demartsev2024-07-08Mappi-70024, year={2024}, doi={10.1098/rstb.2023.0188}, title={Mapping vocal interactions in space and time differentiates signal broadcast versus signal exchange in meerkat groups}, number={1905}, volume={379}, issn={0962-8436}, journal={Philosophical Transactions of the Royal Society B : Biological Sciences}, author={Demartsev, Vlad and Averly, Baptiste and Johnson-Ulrich, Lily and Sridhar, Vivek H. and Leonardos, Leonardos and Vining, Alexander Q. and Thomas, Mara and Manser, Marta B. and Strandburg-Peshkin, Ariana}, note={Article Number: 20230188} }
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