%0 Journal Article
%T Onset of collective motion in locusts is captured by a minimal model
%A Louise Dyson*
%A Christian A. Yates*
%A Jerome Buhl
%A Alan J. McKane *These authors contributed equally to this work
%J Quantitative Biology
%D 2014
%I arXiv
%R 10.1103/PhysRevE.92.052708
%X 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 is 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.
%U http://arxiv.org/abs/1406.5585v3