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Manatee calf call contour and acoustic structure varies by species and body size
Vocal activity and signal characteristics of mammals are driven by several factors that result in both stability and plasticity over multiple time scales. All three extant species of manatee communicate with several calls that are especially important for maintaining contact between cows and calves....
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666457/ https://www.ncbi.nlm.nih.gov/pubmed/36379989 http://dx.doi.org/10.1038/s41598-022-23321-7 |
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author | Brady, Beth Ramos, Eric Angel May-Collado, Laura Landrau-Giovannetti, Nelmarie Lace, Natalija Arreola, Maria Renee Santos, Gabriel Melo da Silva, Vera Maria Ferreira Sousa-Lima, Renata S. |
author_facet | Brady, Beth Ramos, Eric Angel May-Collado, Laura Landrau-Giovannetti, Nelmarie Lace, Natalija Arreola, Maria Renee Santos, Gabriel Melo da Silva, Vera Maria Ferreira Sousa-Lima, Renata S. |
author_sort | Brady, Beth |
collection | PubMed |
description | Vocal activity and signal characteristics of mammals are driven by several factors that result in both stability and plasticity over multiple time scales. All three extant species of manatee communicate with several calls that are especially important for maintaining contact between cows and calves. Determining if calf calls differ across manatee species will provide insights into the evolution of species-specific acoustic communication traits. We investigated the interspecific differences in the vocalizations of calves of Amazonian manatees (Trichechus inunguis) and the two subspecies of the West Indian manatee (T. manatus). Vocalizations of individual calves were recorded in rehabilitation centers in Brazil, Puerto Rico, the United States, and Mexico. The acoustic structure of calls produced by manatee calves varied between species and with body size. Amazonian manatee calves produced shorter calls with multiple notes at higher frequency while West Indian calves produced modulated calls that were lower in frequency and longer in duration. Smaller West Indian calves produced frequency modulated, hill-shaped calls that flattened with an increase in body length. Our results provide evidence for divergence in the ontogeny of vocalizations across T. manatus and T. inunguis and suggest variation in body size contributed to the evolution of differences in the characteristics of their calls. |
format | Online Article Text |
id | pubmed-9666457 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-96664572022-11-17 Manatee calf call contour and acoustic structure varies by species and body size Brady, Beth Ramos, Eric Angel May-Collado, Laura Landrau-Giovannetti, Nelmarie Lace, Natalija Arreola, Maria Renee Santos, Gabriel Melo da Silva, Vera Maria Ferreira Sousa-Lima, Renata S. Sci Rep Article Vocal activity and signal characteristics of mammals are driven by several factors that result in both stability and plasticity over multiple time scales. All three extant species of manatee communicate with several calls that are especially important for maintaining contact between cows and calves. Determining if calf calls differ across manatee species will provide insights into the evolution of species-specific acoustic communication traits. We investigated the interspecific differences in the vocalizations of calves of Amazonian manatees (Trichechus inunguis) and the two subspecies of the West Indian manatee (T. manatus). Vocalizations of individual calves were recorded in rehabilitation centers in Brazil, Puerto Rico, the United States, and Mexico. The acoustic structure of calls produced by manatee calves varied between species and with body size. Amazonian manatee calves produced shorter calls with multiple notes at higher frequency while West Indian calves produced modulated calls that were lower in frequency and longer in duration. Smaller West Indian calves produced frequency modulated, hill-shaped calls that flattened with an increase in body length. Our results provide evidence for divergence in the ontogeny of vocalizations across T. manatus and T. inunguis and suggest variation in body size contributed to the evolution of differences in the characteristics of their calls. Nature Publishing Group UK 2022-11-15 /pmc/articles/PMC9666457/ /pubmed/36379989 http://dx.doi.org/10.1038/s41598-022-23321-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Brady, Beth Ramos, Eric Angel May-Collado, Laura Landrau-Giovannetti, Nelmarie Lace, Natalija Arreola, Maria Renee Santos, Gabriel Melo da Silva, Vera Maria Ferreira Sousa-Lima, Renata S. Manatee calf call contour and acoustic structure varies by species and body size |
title | Manatee calf call contour and acoustic structure varies by species and body size |
title_full | Manatee calf call contour and acoustic structure varies by species and body size |
title_fullStr | Manatee calf call contour and acoustic structure varies by species and body size |
title_full_unstemmed | Manatee calf call contour and acoustic structure varies by species and body size |
title_short | Manatee calf call contour and acoustic structure varies by species and body size |
title_sort | manatee calf call contour and acoustic structure varies by species and body size |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9666457/ https://www.ncbi.nlm.nih.gov/pubmed/36379989 http://dx.doi.org/10.1038/s41598-022-23321-7 |
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