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Title: Reduced social-information provision by immigrants and use by residents following dispersal
Contributor(s): Kern, Julie M  (author)orcid ; Radford, Andrew N (author)
Publication Date: 2017-12-04
DOI: 10.1016/j.cub.2017.10.045
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Abstract: Greater access to social information is a proposed benefit of group living [1]. However, individuals vary in the quantity and quality of information they provide [2], and prior knowledge about signaller reliability is likely important when receivers decide how to respond [3]. While dispersal causes regular changes in group membership [4], no experimental work has investigated social-information provision and use in this context. We studied sentinel behaviour following immigration in a habituated population of wild dwarf mongooses (Helogale parvula) [5]; sentinels (raised guards) use various vocalisations to provide social information 5, 6. Recent immigrants acted as sentinels rarely and significantly less often than residents, limiting their role as social-information providers. Even when recent immigrants acted as social-information providers, foragers responded to them less than they did to residents. Several months after arrival, immigrants had increased sentinel contributions, and foragers no longer responded differently to sentinel activity by former immigrants and residents. Our results raise questions about the assumed social-information benefits associated with increased group size.
Publication Type: Journal Article
Source of Publication: Current Biology, 27(23), p. R1266-R1267
Publisher: Cell Press
Place of Publication: United States of America
ISSN: 1879-0445
Fields of Research (FoR) 2008: 060801 Animal Behaviour
060201 Behavioural Ecology
Fields of Research (FoR) 2020: 310901 Animal behaviour
310301 Behavioural ecology
Socio-Economic Objective (SEO) 2008: 970106 Expanding Knowledge in the Biological Sciences
Socio-Economic Objective (SEO) 2020: 280102 Expanding knowledge in the biological sciences
HERDC Category Description: C4 Letter of Note
Appears in Collections:Journal Article
School of Environmental and Rural Science

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