Caller characteristics influence recruitment to collective anti-predator events in jackdaws

Abstract Across the animal kingdom, examples abound of individuals coming together to repel external threats. When such collective actions are initiated by recruitment signals, individuals may benefit from being selective in whom they join, so the identity of the initiator may determine the magnitud...

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Autores principales:	Richard D. Woods, Michael Kings, Guillam E. McIvor, Alex Thornton
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ec2e94c1a543400d8b53ab6e3d3275de
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spelling	oai:doaj.org-article:ec2e94c1a543400d8b53ab6e3d3275de2021-12-02T12:33:00ZCaller characteristics influence recruitment to collective anti-predator events in jackdaws10.1038/s41598-018-25793-y2045-2322https://doaj.org/article/ec2e94c1a543400d8b53ab6e3d3275de2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25793-yhttps://doaj.org/toc/2045-2322Abstract Across the animal kingdom, examples abound of individuals coming together to repel external threats. When such collective actions are initiated by recruitment signals, individuals may benefit from being selective in whom they join, so the identity of the initiator may determine the magnitude of the group response. However, the role of signaller discrimination in coordinating group-level responses has yet to be tested. Here we show that in wild jackdaws, a colonial corvid species, collective responses to anti-predator recruitment calls are mediated by caller characteristics. In playbacks next to nestboxes, the calls of nestbox residents attracted most recruits, followed in turn by other colony members, non-colony members and rooks (a sympatric corvid). Playbacks in fields outside nestbox colonies, where the immediate threat to broods was lower, showed similar results, with highest recruitment to nearby colony members’ calls. Responses were further influenced by caller sex: calls from non-colony member females were less likely to elicit responsive scolding by recruits than other calls, potentially reflecting social rank associated with sex and colony membership. These results show that vocal discrimination mediates jackdaws’ collective responses and highlight the need for further research into the cognitive basis of collective actions in animal groups.Richard D. WoodsMichael KingsGuillam E. McIvorAlex ThorntonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Richard D. Woods Michael Kings Guillam E. McIvor Alex Thornton Caller characteristics influence recruitment to collective anti-predator events in jackdaws
description	Abstract Across the animal kingdom, examples abound of individuals coming together to repel external threats. When such collective actions are initiated by recruitment signals, individuals may benefit from being selective in whom they join, so the identity of the initiator may determine the magnitude of the group response. However, the role of signaller discrimination in coordinating group-level responses has yet to be tested. Here we show that in wild jackdaws, a colonial corvid species, collective responses to anti-predator recruitment calls are mediated by caller characteristics. In playbacks next to nestboxes, the calls of nestbox residents attracted most recruits, followed in turn by other colony members, non-colony members and rooks (a sympatric corvid). Playbacks in fields outside nestbox colonies, where the immediate threat to broods was lower, showed similar results, with highest recruitment to nearby colony members’ calls. Responses were further influenced by caller sex: calls from non-colony member females were less likely to elicit responsive scolding by recruits than other calls, potentially reflecting social rank associated with sex and colony membership. These results show that vocal discrimination mediates jackdaws’ collective responses and highlight the need for further research into the cognitive basis of collective actions in animal groups.
format	article
author	Richard D. Woods Michael Kings Guillam E. McIvor Alex Thornton
author_facet	Richard D. Woods Michael Kings Guillam E. McIvor Alex Thornton
author_sort	Richard D. Woods
title	Caller characteristics influence recruitment to collective anti-predator events in jackdaws
title_short	Caller characteristics influence recruitment to collective anti-predator events in jackdaws
title_full	Caller characteristics influence recruitment to collective anti-predator events in jackdaws
title_fullStr	Caller characteristics influence recruitment to collective anti-predator events in jackdaws
title_full_unstemmed	Caller characteristics influence recruitment to collective anti-predator events in jackdaws
title_sort	caller characteristics influence recruitment to collective anti-predator events in jackdaws
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/ec2e94c1a543400d8b53ab6e3d3275de
work_keys_str_mv	AT richarddwoods callercharacteristicsinfluencerecruitmenttocollectiveantipredatoreventsinjackdaws AT michaelkings callercharacteristicsinfluencerecruitmenttocollectiveantipredatoreventsinjackdaws AT guillamemcivor callercharacteristicsinfluencerecruitmenttocollectiveantipredatoreventsinjackdaws AT alexthornton callercharacteristicsinfluencerecruitmenttocollectiveantipredatoreventsinjackdaws
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Caller characteristics influence recruitment to collective anti-predator events in jackdaws

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