Information Certainty Determines Social and Private Information Use in Ants

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Version: Final published version
Serval ID
serval:BIB_3AB3A5FC577A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Information Certainty Determines Social and Private Information Use in Ants
Journal
Scientific Reports
Author(s)
Stroeymeyt N., Giurfa M., Franks N.R.
ISSN
2045-2322
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
7
Pages
43607
Language
english
Abstract
Decision-making in uncertain environments requires animals to evaluate, contrast and integrate various information sources to choose appropriate actions. In consensus-making groups, quorum responses are commonly used to combine private and social information, leading to both robust and flexible decisions. Here we show that in house-hunting ant colonies, individuals fine-tune the parameters of their quorum responses depending on their private knowledge: informed ants evaluating a familiar new nest rely relatively more on social than private information when the certainty of their private information is low, and vice versa. This indicates that the ants follow a highly sophisticated `copywhen-uncertain' social learning strategy similar to that observed in a few vertebrate species. Using simulations, we further show that this strategy improves colony performance during emigrations and confers well-informed individuals more weight in the decision process, thus representing a novel mechanism for the emergence of leadership in collective decision-making.
Web of science
Open Access
Yes
Create date
19/04/2017 7:34
Last modification date
20/08/2019 13:30
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