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Tytuł pozycji:

Helping decisions and kin recognition in long-tailed tits: is call similarity used to direct help towards kin?

Tytuł:
Helping decisions and kin recognition in long-tailed tits: is call similarity used to direct help towards kin?
Autorzy:
Leedale AE; Department of Zoology, University of Cambridge, Cambridge, UK.; Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.
Lachlan RF; Department of Psychology, Royal Holloway University of London, London, UK.
Robinson EJH; Department of Biology, University of York, York, UK.
Hatchwell BJ; Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.
Źródło:
Philosophical transactions of the Royal Society of London. Series B, Biological sciences [Philos Trans R Soc Lond B Biol Sci] 2020 Jul 06; Vol. 375 (1802), pp. 20190565. Date of Electronic Publication: 2020 May 18.
Typ publikacji:
Journal Article; Research Support, Non-U.S. Gov't
Język:
English
Imprint Name(s):
Original Publication: London : Royal Society, 1934-
MeSH Terms:
Animal Communication*
Auditory Perception*
Cooperative Behavior*
Cues*
Nesting Behavior*
Songbirds/*physiology
Animals ; Decision Making ; Helping Behavior ; Male
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Contributed Indexing:
Keywords: acoustics; call similarity; cooperative breeding; kin discrimination; kin recognition
Molecular Sequence:
Dryad 10.5061/dryad.sbcc2fr2p
figshare 10.6084/m9.figshare.c.4944474
Entry Date(s):
Date Created: 20200519 Date Completed: 20210322 Latest Revision: 20210707
Update Code:
20240105
PubMed Central ID:
PMC7331009
DOI:
10.1098/rstb.2019.0565
PMID:
32420850
Czasopismo naukowe
Most cooperative breeders live in discrete family groups, but in a minority, breeding populations comprise extended social networks of conspecifics that vary in relatedness. Selection for effective kin recognition may be expected for more related individuals in such kin neighbourhoods to maximize indirect fitness. Using a long-term social pedigree, molecular genetics, field observations and acoustic analyses, we examine how vocal similarity affects helping decisions in the long-tailed tit Aegithalos caudatus . Long-tailed tits are cooperative breeders in which help is typically redirected by males that have failed in their own breeding attempts towards the offspring of male relatives living within kin neighbourhoods. We identify a positive correlation between call similarity and kinship, suggesting that vocal cues offer a plausible mechanism for kin discrimination. Furthermore, we show that failed breeders choose to help males with calls more similar to their own. However, although helpers fine-tune their provisioning rates according to how closely related they are to recipients, their effort was not correlated with their vocal similarity to helped breeders. We conclude that although vocalizations are an important part of the recognition system of long-tailed tits, discrimination is likely to be based on prior association and may involve a combination of vocal and non-vocal cues. This article is part of the theme issue 'Signal detection theory in recognition systems: from evolving models to experimental tests'.

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