Física estadística: de la materia diluida a los grupos de langostas.

Carlos Escudero Liébana


Desert locusts are fascinating animals whose ecology depends on the individuals’ density. High densities are characterized by gregarious behavior and collective motion. Beyond the direct observation of their phenomenology, a detailed analysis of the experimental data may reveal fundamental features of their collaborative dynamics. We will show how a stochastic differential equations model is able to satisfactorily describe the collective displacement of a locusts group in a simplified laboratory situation. The resulting analysis allows a better understanding of the properties of the insects’ individual motion, and clarifies how their mutual interactions give rise to the ordered macroscopic patterns.

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