Cargando…
Group association and vocal behaviour during foraging trips in Gentoo penguins
In contrast to their terrestrial call, the offshore call of penguins during their foraging trips has been poorly studied due to the inaccessibility of the foraging site—the open ocean—to researchers. Here, we present the first description of the vocal behaviour of penguins in the open ocean and disc...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561229/ https://www.ncbi.nlm.nih.gov/pubmed/28819102 http://dx.doi.org/10.1038/s41598-017-07900-7 |
_version_ | 1783257806185431040 |
---|---|
author | Choi, Noori Kim, Jeong-Hoon Kokubun, Nobuo Park, Seongseop Chung, Hosung Lee, Won Young |
author_facet | Choi, Noori Kim, Jeong-Hoon Kokubun, Nobuo Park, Seongseop Chung, Hosung Lee, Won Young |
author_sort | Choi, Noori |
collection | PubMed |
description | In contrast to their terrestrial call, the offshore call of penguins during their foraging trips has been poorly studied due to the inaccessibility of the foraging site—the open ocean—to researchers. Here, we present the first description of the vocal behaviour of penguins in the open ocean and discuss the function of their vocal communication. We deployed an animal-borne camera on gentoo penguins (Pygoscelis papua) and recorded their foraging behaviour during chick guarding. From the video recordings, we collected 598 offshore calls from 10 individuals in two breeding seasons (2014–2015 and 2015–2016), and we analysed the acoustic characteristics and behavioural contexts of these calls, including diving patterns, group association events, and foraging behaviour. The offshore calls varied in their dominant frequency and length, and penguins produced calls of different lengths in succession. Group associations were observed within one minute following an offshore call in almost half of the instances (43.18%). Penguins undertook dives of shallower depths and shorter durations after producing an offshore call than those before producing an offshore call. Our findings show that penguins may use vocal communication in the ocean related with group association during foraging trips. |
format | Online Article Text |
id | pubmed-5561229 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-55612292017-08-21 Group association and vocal behaviour during foraging trips in Gentoo penguins Choi, Noori Kim, Jeong-Hoon Kokubun, Nobuo Park, Seongseop Chung, Hosung Lee, Won Young Sci Rep Article In contrast to their terrestrial call, the offshore call of penguins during their foraging trips has been poorly studied due to the inaccessibility of the foraging site—the open ocean—to researchers. Here, we present the first description of the vocal behaviour of penguins in the open ocean and discuss the function of their vocal communication. We deployed an animal-borne camera on gentoo penguins (Pygoscelis papua) and recorded their foraging behaviour during chick guarding. From the video recordings, we collected 598 offshore calls from 10 individuals in two breeding seasons (2014–2015 and 2015–2016), and we analysed the acoustic characteristics and behavioural contexts of these calls, including diving patterns, group association events, and foraging behaviour. The offshore calls varied in their dominant frequency and length, and penguins produced calls of different lengths in succession. Group associations were observed within one minute following an offshore call in almost half of the instances (43.18%). Penguins undertook dives of shallower depths and shorter durations after producing an offshore call than those before producing an offshore call. Our findings show that penguins may use vocal communication in the ocean related with group association during foraging trips. Nature Publishing Group UK 2017-08-17 /pmc/articles/PMC5561229/ /pubmed/28819102 http://dx.doi.org/10.1038/s41598-017-07900-7 Text en © The Author(s) 2017 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Choi, Noori Kim, Jeong-Hoon Kokubun, Nobuo Park, Seongseop Chung, Hosung Lee, Won Young Group association and vocal behaviour during foraging trips in Gentoo penguins |
title | Group association and vocal behaviour during foraging trips in Gentoo penguins |
title_full | Group association and vocal behaviour during foraging trips in Gentoo penguins |
title_fullStr | Group association and vocal behaviour during foraging trips in Gentoo penguins |
title_full_unstemmed | Group association and vocal behaviour during foraging trips in Gentoo penguins |
title_short | Group association and vocal behaviour during foraging trips in Gentoo penguins |
title_sort | group association and vocal behaviour during foraging trips in gentoo penguins |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561229/ https://www.ncbi.nlm.nih.gov/pubmed/28819102 http://dx.doi.org/10.1038/s41598-017-07900-7 |
work_keys_str_mv | AT choinoori groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT kimjeonghoon groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT kokubunnobuo groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT parkseongseop groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT chunghosung groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT leewonyoung groupassociationandvocalbehaviourduringforagingtripsingentoopenguins |