Juvenile greylag geese (Anser anser) discriminate between individual siblings.

Social species that maintain individualised relationships with certain others despite continuous changes in age, reproductive status and dominance rank between group members ought to be capable of individual recognition. Tests of "true" individual recognition, where an individual recognise...

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Autores principales:	Isabella B R Scheiber, Aileen Hohnstein, Kurt Kotrschal, Brigitte M Weiss
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d6a691b67f3749778e064eddef0b4120
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spelling	oai:doaj.org-article:d6a691b67f3749778e064eddef0b41202021-11-18T06:48:44ZJuvenile greylag geese (Anser anser) discriminate between individual siblings.1932-620310.1371/journal.pone.0022853https://doaj.org/article/d6a691b67f3749778e064eddef0b41202011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21826212/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Social species that maintain individualised relationships with certain others despite continuous changes in age, reproductive status and dominance rank between group members ought to be capable of individual recognition. Tests of "true" individual recognition, where an individual recognises unique features of another, are rare, however. Often kinship and/or familiarity suffice to explain dyadic interactions. The complex relationships within a greylag goose flock suggest that they should be able to recognise individuals irrespective of familiarity or kinship. We tested whether six-week-old hand-raised greylags can discriminate between two of their siblings. We developed a new experimental protocol, in which geese were trained to associate social siblings with geometrical symbols. Subsequently, focals were presented with two geometrical symbols in the presence of a sibling associated with one of the symbols. Significant choice of the geometrical symbol associated with the target present indicated that focals were able to distinguish between individual targets. Greylag goslings successfully learned this association-discrimination task, regardless of genetic relatedness or sex of the sibling targets. Social relationships within a goose flock thus may indeed be based on recognition of unique features of individual conspecifics.Isabella B R ScheiberAileen HohnsteinKurt KotrschalBrigitte M WeissPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 8, p e22853 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Isabella B R Scheiber Aileen Hohnstein Kurt Kotrschal Brigitte M Weiss Juvenile greylag geese (Anser anser) discriminate between individual siblings.
description	Social species that maintain individualised relationships with certain others despite continuous changes in age, reproductive status and dominance rank between group members ought to be capable of individual recognition. Tests of "true" individual recognition, where an individual recognises unique features of another, are rare, however. Often kinship and/or familiarity suffice to explain dyadic interactions. The complex relationships within a greylag goose flock suggest that they should be able to recognise individuals irrespective of familiarity or kinship. We tested whether six-week-old hand-raised greylags can discriminate between two of their siblings. We developed a new experimental protocol, in which geese were trained to associate social siblings with geometrical symbols. Subsequently, focals were presented with two geometrical symbols in the presence of a sibling associated with one of the symbols. Significant choice of the geometrical symbol associated with the target present indicated that focals were able to distinguish between individual targets. Greylag goslings successfully learned this association-discrimination task, regardless of genetic relatedness or sex of the sibling targets. Social relationships within a goose flock thus may indeed be based on recognition of unique features of individual conspecifics.
format	article
author	Isabella B R Scheiber Aileen Hohnstein Kurt Kotrschal Brigitte M Weiss
author_facet	Isabella B R Scheiber Aileen Hohnstein Kurt Kotrschal Brigitte M Weiss
author_sort	Isabella B R Scheiber
title	Juvenile greylag geese (Anser anser) discriminate between individual siblings.
title_short	Juvenile greylag geese (Anser anser) discriminate between individual siblings.
title_full	Juvenile greylag geese (Anser anser) discriminate between individual siblings.
title_fullStr	Juvenile greylag geese (Anser anser) discriminate between individual siblings.
title_full_unstemmed	Juvenile greylag geese (Anser anser) discriminate between individual siblings.
title_sort	juvenile greylag geese (anser anser) discriminate between individual siblings.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/d6a691b67f3749778e064eddef0b4120
work_keys_str_mv	AT isabellabrscheiber juvenilegreylaggeeseanseranserdiscriminatebetweenindividualsiblings AT aileenhohnstein juvenilegreylaggeeseanseranserdiscriminatebetweenindividualsiblings AT kurtkotrschal juvenilegreylaggeeseanseranserdiscriminatebetweenindividualsiblings AT brigittemweiss juvenilegreylaggeeseanseranserdiscriminatebetweenindividualsiblings
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Juvenile greylag geese (Anser anser) discriminate between individual siblings.

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