Balancing direct and indirect sources of navigational information in a leaderless model of collective animal movement

Journal of Theoretical Biology
Edward A Codling, Nikolai W F Bode

Abstract

Navigation is an important movement process that enables individuals and groups of animals to find targets in space at different spatio-temporal scales. Earlier studies have shown how being in a group can confer navigational advantages to individuals, either through following more experienced leaders or through the pooling of many inaccurate compasses, a process known as the 'many wrongs principle'. However, the exact mechanisms for how information is transferred and used within the group in order to improve both individual- and group-level navigational performance are not fully understood. Here we explore the relative weighting that should be given to different sources of navigational information by an individual within a navigating group at each step of the movement process. Specifically, we consider a direct goal-oriented source of navigational information such as the individual׳s own imperfect knowledge of the target (a 'noisy compass') alongside two indirect sources of navigational information: the previous movement directions of neighbours in the group (social information) and, for the first time in this context, the previous movement direction of the individual (persistence). We assume that all individuals are equal in t...Continue Reading

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Citations

Aug 16, 2017·Nature Ecology & Evolution·Mike M WebsterKevin N Laland
Mar 28, 2018·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andrew M BerdahlDora Biro
Sep 30, 2021·Journal of the Royal Society, Interface·S T Johnston, K J Painter

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