Behavioural plasticity and the transition to order in jackdaw flocks
| Autor: | Richard T. Vaughan, Nicholas T. Ouellette, Alex Thornton, Kasper van der Vaart, Hangjian Ling, Guillam E. Mclvor, Joseph Westley |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Particle model
Behavioural ecology Science General Physics and Astronomy Spatial Behavior Plasticity Models Biological General Biochemistry Genetics and Molecular Biology Mobbing (animal behavior) Article Animals Computer Simulation Statistical physics Statistical physics thermodynamics and nonlinear dynamics lcsh:Science Social Behavior Mathematics Crows Multidisciplinary Behavior Animal Transition (fiction) Group order General Chemistry Nonlinear phenomena Order (biology) Metric (mathematics) lcsh:Q Flock |
| Zdroj: | Nature Communications Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019) |
| ISSN: | 2041-1723 |
| Popis: | Collective behaviour is typically thought to arise from individuals following fixed interaction rules. The possibility that interaction rules may change under different circumstances has thus only rarely been investigated. Here we show that local interactions in flocks of wild jackdaws (Corvus monedula) vary drastically in different contexts, leading to distinct group-level properties. Jackdaws interact with a fixed number of neighbours (topological interactions) when traveling to roosts, but coordinate with neighbours based on spatial distance (metric interactions) during collective anti-predator mobbing events. Consequently, mobbing flocks exhibit a dramatic transition from disordered aggregations to ordered motion as group density increases, unlike transit flocks where order is independent of density. The relationship between group density and group order during this transition agrees well with a generic self-propelled particle model. Our results demonstrate plasticity in local interaction rules and have implications for both natural and artificial collective systems. Modelling collective behaviour in different circumstances remains a challenge because of uncertainty related to interaction rule changes. Here, the authors report plasticity in local interaction rules in flocks of wild jackdaws with implications for both natural and artificial collective systems. |
| Databáze: | OpenAIRE |
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