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...

Descripción completa

Detalles Bibliográficos
Autores principales: Choi, Noori, Kim, Jeong-Hoon, Kokubun, Nobuo, Park, Seongseop, Chung, Hosung, Lee, Won Young
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