Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).

Northern Bald Ibis are socially monogamous and year-round colonial birds with a moderate repertoire of calls. Their 'croop', for example, is used during greeting of mates, but also during agonistic encounters, and provides an ideal case to study whether calls are revealing with respect to...

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Autores principales:	Georgine Szipl, Markus Boeckle, Sinja A B Werner, Kurt Kotrschal
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f556a7651ff2493da580981e51d8bc3d
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spelling	oai:doaj.org-article:f556a7651ff2493da580981e51d8bc3d2021-11-18T08:33:35ZMate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).1932-620310.1371/journal.pone.0088265https://doaj.org/article/f556a7651ff2493da580981e51d8bc3d2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24505455/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Northern Bald Ibis are socially monogamous and year-round colonial birds with a moderate repertoire of calls. Their 'croop', for example, is used during greeting of mates, but also during agonistic encounters, and provides an ideal case to study whether calls are revealing with respect to motivational states. We recorded croop calls in a semi-tame and free-roaming flock of Northern Bald Ibis in Austria, and analysed the vocal structure to identify parameters (e.g. call duration, fundamental frequency) potentially differing between social contexts, sexes and individuals. Additionally, we conducted playback experiments to test whether mated pairs would discriminate each other by their greeting croops. Acoustic features showed highly variable temporal and structural parameters. Almost all calls could be classified correctly and assigned to the different social contexts and sexes. Classification results of greeting croops were less clear for individuality. However, incubating individuals looked up more often and longer in response to playbacks of the greeting calls of their mate than to other colony members, indicating mate recognition. We show that acoustic parameters of agonistic and greeting croops contain features that may indicate the expression of affective states, and that greeting croops encode individual differences that are sufficient for individual recognition.Georgine SziplMarkus BoeckleSinja A B WernerKurt KotrschalPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e88265 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Georgine Szipl Markus Boeckle Sinja A B Werner Kurt Kotrschal Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
description	Northern Bald Ibis are socially monogamous and year-round colonial birds with a moderate repertoire of calls. Their 'croop', for example, is used during greeting of mates, but also during agonistic encounters, and provides an ideal case to study whether calls are revealing with respect to motivational states. We recorded croop calls in a semi-tame and free-roaming flock of Northern Bald Ibis in Austria, and analysed the vocal structure to identify parameters (e.g. call duration, fundamental frequency) potentially differing between social contexts, sexes and individuals. Additionally, we conducted playback experiments to test whether mated pairs would discriminate each other by their greeting croops. Acoustic features showed highly variable temporal and structural parameters. Almost all calls could be classified correctly and assigned to the different social contexts and sexes. Classification results of greeting croops were less clear for individuality. However, incubating individuals looked up more often and longer in response to playbacks of the greeting calls of their mate than to other colony members, indicating mate recognition. We show that acoustic parameters of agonistic and greeting croops contain features that may indicate the expression of affective states, and that greeting croops encode individual differences that are sufficient for individual recognition.
format	article
author	Georgine Szipl Markus Boeckle Sinja A B Werner Kurt Kotrschal
author_facet	Georgine Szipl Markus Boeckle Sinja A B Werner Kurt Kotrschal
author_sort	Georgine Szipl
title	Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
title_short	Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
title_full	Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
title_fullStr	Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
title_full_unstemmed	Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).
title_sort	mate recognition and expression of affective state in croop calls of northern bald ibis (geronticus eremita).
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/f556a7651ff2493da580981e51d8bc3d
work_keys_str_mv	AT georgineszipl materecognitionandexpressionofaffectivestateincroopcallsofnorthernbaldibisgeronticuseremita AT markusboeckle materecognitionandexpressionofaffectivestateincroopcallsofnorthernbaldibisgeronticuseremita AT sinjaabwerner materecognitionandexpressionofaffectivestateincroopcallsofnorthernbaldibisgeronticuseremita AT kurtkotrschal materecognitionandexpressionofaffectivestateincroopcallsofnorthernbaldibisgeronticuseremita
_version_	1718421658279084032

Mate recognition and expression of affective state in croop calls of Northern Bald Ibis (Geronticus eremita).

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