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

@article{Dyson2015OnsetOC,
  title={Onset of collective motion in locusts is captured by a minimal model.},
  author={Louise Dyson and Christian A. Yates and J{\'e}r{\^o}me Buhl and Alan J. McKane},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2015},
  volume={92 5},
  pages={052708}
}
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… CONTINUE READING
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