Cargando…
General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata
Rhythm is an essential component of human speech and music but very little is known about its evolutionary origin and its distribution in animal vocalizations. We found a regular rhythm in three multisyllabic vocalization types (echolocation call sequences, male territorial songs and pup isolation c...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6366212/ https://www.ncbi.nlm.nih.gov/pubmed/30800360 http://dx.doi.org/10.1098/rsos.181076 |
_version_ | 1783393579342757888 |
---|---|
author | Burchardt, Lara S. Norton, Philipp Behr, Oliver Scharff, Constance Knörnschild, Mirjam |
author_facet | Burchardt, Lara S. Norton, Philipp Behr, Oliver Scharff, Constance Knörnschild, Mirjam |
author_sort | Burchardt, Lara S. |
collection | PubMed |
description | Rhythm is an essential component of human speech and music but very little is known about its evolutionary origin and its distribution in animal vocalizations. We found a regular rhythm in three multisyllabic vocalization types (echolocation call sequences, male territorial songs and pup isolation calls) of the neotropical bat Saccopteryx bilineata. The intervals between element onsets were used to fit the rhythm for each individual. For echolocation call sequences, we expected rhythm frequencies around 6–24 Hz, corresponding to the wingbeat in S. bilineata which is strongly coupled to echolocation calls during flight. Surprisingly, we found rhythm frequencies between 6 and 24 Hz not only for echolocation sequences but also for social vocalizations, e.g. male territorial songs and pup isolation calls, which were emitted while bats were stationary. Fourier analysis of element onsets confirmed an isochronous rhythm across individuals and vocalization types. We speculate that attentional tuning to the rhythms of echolocation calls on the receivers' side might make the production of equally steady rhythmic social vocalizations beneficial. |
format | Online Article Text |
id | pubmed-6366212 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-63662122019-02-22 General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata Burchardt, Lara S. Norton, Philipp Behr, Oliver Scharff, Constance Knörnschild, Mirjam R Soc Open Sci Biology (Whole Organism) Rhythm is an essential component of human speech and music but very little is known about its evolutionary origin and its distribution in animal vocalizations. We found a regular rhythm in three multisyllabic vocalization types (echolocation call sequences, male territorial songs and pup isolation calls) of the neotropical bat Saccopteryx bilineata. The intervals between element onsets were used to fit the rhythm for each individual. For echolocation call sequences, we expected rhythm frequencies around 6–24 Hz, corresponding to the wingbeat in S. bilineata which is strongly coupled to echolocation calls during flight. Surprisingly, we found rhythm frequencies between 6 and 24 Hz not only for echolocation sequences but also for social vocalizations, e.g. male territorial songs and pup isolation calls, which were emitted while bats were stationary. Fourier analysis of element onsets confirmed an isochronous rhythm across individuals and vocalization types. We speculate that attentional tuning to the rhythms of echolocation calls on the receivers' side might make the production of equally steady rhythmic social vocalizations beneficial. The Royal Society 2019-01-02 /pmc/articles/PMC6366212/ /pubmed/30800360 http://dx.doi.org/10.1098/rsos.181076 Text en © 2019 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Biology (Whole Organism) Burchardt, Lara S. Norton, Philipp Behr, Oliver Scharff, Constance Knörnschild, Mirjam General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title | General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title_full | General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title_fullStr | General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title_full_unstemmed | General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title_short | General isochronous rhythm in echolocation calls and social vocalizations of the bat Saccopteryx bilineata |
title_sort | general isochronous rhythm in echolocation calls and social vocalizations of the bat saccopteryx bilineata |
topic | Biology (Whole Organism) |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6366212/ https://www.ncbi.nlm.nih.gov/pubmed/30800360 http://dx.doi.org/10.1098/rsos.181076 |
work_keys_str_mv | AT burchardtlaras generalisochronousrhythminecholocationcallsandsocialvocalizationsofthebatsaccopteryxbilineata AT nortonphilipp generalisochronousrhythminecholocationcallsandsocialvocalizationsofthebatsaccopteryxbilineata AT behroliver generalisochronousrhythminecholocationcallsandsocialvocalizationsofthebatsaccopteryxbilineata AT scharffconstance generalisochronousrhythminecholocationcallsandsocialvocalizationsofthebatsaccopteryxbilineata AT knornschildmirjam generalisochronousrhythminecholocationcallsandsocialvocalizationsofthebatsaccopteryxbilineata |