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Onset of collective motion in locusts is captured by a minimal model

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Dyson, Louise, Yates, Christian A., Buhl, Jerome and McKane, Alan J. (2015) Onset of collective motion in locusts is captured by a minimal model. Physical Review E, 92 (5). 052708 . doi:10.1103/PhysRevE.92.052708 ISSN 1539-3755.

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Official URL: http://dx.doi.org/10.1103/PhysRevE.92.052708

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Abstract

We present a minimal model to describe the onset of collective motion seen when a population of locusts are placed in an annular arena. At low densities motion is disordered, while at high densities locusts march in a common direction, which may reverse during the experiment. The data are well captured by an individual-based model, in which demographic noise leads to the observed density-dependent effects. By fitting the model parameters to equation-free coefficients, we give a quantitative comparison, showing time series, stationary distributions, and the mean switching times between states.

Item Type: Journal Article
Divisions: Faculty of Science, Engineering and Medicine > Science > Mathematics
Journal or Publication Title: Physical Review E
Publisher: American Physical Society
ISSN: 1539-3755
Official Date: 6 November 2015
Dates:
DateEvent
6 November 2015Published
12 March 2015Submitted
Volume: 92
Number: 5
Article Number: 052708
DOI: 10.1103/PhysRevE.92.052708
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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