ArticleScientific reports2022
Scale-free behavioral cascades and effective leadership in schooling fish.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 26 citations in OpenAlex.
- From Lévy walks to Brownian motion in schools of zebrafish (Danio rerio).The European physical journal. E, Soft matter · 2026Article
- A hitchhiker's guide to active motion.The European physical journal. E, Soft matter · 2025Article
- Collective properties of Petitella georgiae in tube environments.Scientific reports · 2024Article
- Information structure of heterogeneous criticality in a fish school.Scientific reports · 2024Article
- Information structure of heterogeneous criticality in a fish school.Scientific reports · 2024Article
- Body orientation change of neighbors leads to scale-free correlation in collective motion.Nature communications · 2024Article
- Functional duality in group criticality via ambiguous interactions.PLoS computational biology · 2023Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
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Abstract
Behavioral contagion and the presence of behavioral cascades are natural features in groups of animals showing collective motion, such as schooling fish or grazing herbivores. Here we study empirical behavioral cascades observed in fish schools defined as avalanches of consecutive large changes in the heading direction of the trajectory of fish. In terms of a minimum turning angle introduced to define a large change, avalanches are characterized by distributions of size and duration showing scale-free signatures, reminiscent of self-organized critical behavior. We observe that avalanches are generally triggered by a small number of fish, which act as effective leaders that induce large rearrangements of the group's trajectory. This observation motivates the proposal of a simple model, based in the classical Vicsek model of collective motion, in which a given individual acts as a leader subject to random heading reorientations. The model reproduces qualitatively the empirical avalanche behavior observed in real schools, and hints towards a connection between effective leadership, long range interactions and avalanche behavior in collective movement.
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