Group association and vocal behaviour during foraging trips in Gentoo penguins

Abstract 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...

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Autores principales:	Noori Choi, Jeong-Hoon Kim, Nobuo Kokubun, Seongseop Park, Hosung Chung, Won Young Lee
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a300f9a724914adeabdb2045b22df45f
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spelling	oai:doaj.org-article:a300f9a724914adeabdb2045b22df45f2021-12-02T16:06:08ZGroup association and vocal behaviour during foraging trips in Gentoo penguins10.1038/s41598-017-07900-72045-2322https://doaj.org/article/a300f9a724914adeabdb2045b22df45f2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07900-7https://doaj.org/toc/2045-2322Abstract 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.Noori ChoiJeong-Hoon KimNobuo KokubunSeongseop ParkHosung ChungWon Young LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Noori Choi Jeong-Hoon Kim Nobuo Kokubun Seongseop Park Hosung Chung Won Young Lee Group association and vocal behaviour during foraging trips in Gentoo penguins
description	Abstract 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	article
author	Noori Choi Jeong-Hoon Kim Nobuo Kokubun Seongseop Park Hosung Chung Won Young Lee
author_facet	Noori Choi Jeong-Hoon Kim Nobuo Kokubun Seongseop Park Hosung Chung Won Young Lee
author_sort	Noori Choi
title	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_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_sort	group association and vocal behaviour during foraging trips in gentoo penguins
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a300f9a724914adeabdb2045b22df45f
work_keys_str_mv	AT noorichoi groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT jeonghoonkim groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT nobuokokubun groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT seongseoppark groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT hosungchung groupassociationandvocalbehaviourduringforagingtripsingentoopenguins AT wonyounglee groupassociationandvocalbehaviourduringforagingtripsingentoopenguins
_version_	1718385107470909440

Group association and vocal behaviour during foraging trips in Gentoo penguins

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