Inferring social influence in animal groups across multiple timescales

Philosophical Transactions of the Royal Society of London, Series B : Biological Sciences ; 378 (2023), 1874. - 20220062. - Royal Society of London. - ISSN 0962-8436. - eISSN 1471-2970

Abstract

Many animal behaviours exhibit complex temporal dynamics, suggesting there are multiple timescales at which they should be studied. However, researchers often focus on behaviours that occur over relatively restricted temporal scales, typically ones that are more accessible to human observation. The situation becomes even more complex when considering multiple animals interacting, where behavioural coupling can introduce new timescales of importance. Here, we present a technique to study the time-varying nature of social influence in mobile animal groups across multiple temporal scales. As case studies, we analyse golden shiner fish and homing pigeons, which move in different media. By analysing pairwise interactions among individuals, we show that predictive power of the factors affecting social influence depends on the timescale of analysis. Over short timescales the relative position of a neighbour best predicts its influence and the distribution of influence across group members is relatively linear, with a small slope. At longer timescales, however, both relative position and kinematics are found to predict influence, and nonlinearity in the influence distribution increases, with a small number of individuals being disproportionately influential. Our results demonstrate that different interpretations of social influence arise from analysing behaviour at different timescales, highlighting the importance of considering its multiscale nature. This article is part of a discussion meeting issue ‘Collective behaviour through time’.

Subject (DDC)

570 Biosciences, Biology

Keywords

leadership,collective behaviour,movement ecology,timescales,schooling,flocking

Cite This

ISO 690

SRIDHAR, Vivek H., Jacob D. DAVIDSON, Colin R. TWOMEY, Matthew M. G. SOSNA, Mate NAGY, Iain D. COUZIN, 2023. Inferring social influence in animal groups across multiple timescales. In: Philosophical Transactions of the Royal Society of London, Series B : Biological Sciences. Royal Society of London. 378(1874), 20220062. ISSN 0962-8436. eISSN 1471-2970. Available under: doi: 10.1098/rstb.2022.0062

BibTex

@article{Sridhar2023-02-20Infer-66214,
  year={2023},
  doi={10.1098/rstb.2022.0062},
  title={Inferring social influence in animal groups across multiple timescales},
  number={1874},
  volume={378},
  issn={0962-8436},
  journal={Philosophical Transactions of the Royal Society of London, Series B : Biological Sciences},
  author={Sridhar, Vivek H. and Davidson, Jacob D. and Twomey, Colin R. and Sosna, Matthew M. G. and Nagy, Mate and Couzin, Iain D.},
  note={Article Number: 20220062}
}

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Refereed

Yes