title: Dynamical quorum sensing and clustering dynamics in a population of spatially distributed active rotators.
abstract: A model of clustering dynamics is proposed for a population of spatially distributed active rotators. A transition from excitable to oscillatory dynamics is induced by the increase of the local density of active rotators. It is interpreted as dynamical quorum sensing. In the oscillation regime, phase waves propagate without decay, which generates an effectively long-range interaction in the clustering dynamics. The clustering process becomes facilitated and only one dominant cluster appears rapidly as a result of the dynamical quorum sensing. An exact localized solution is found to a simplified model equation, and the competitive dynamics between two localized states is studied numerically.
authors.affiliation: Department of Applied Science for Electronics and Materials, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan.
authors.forename: Hidetsugu
authors.initials: H
authors.lastname: Sakaguchi
authors.forename: Satomi
authors.initials: S
authors.lastname: Maeyama
mesh_terms: D002465:Cell Movement / Q000502:physiology*; D003198:Computer Simulation; D008954:Models, Biological; D053038:Quorum Sensing / Q000502:physiology*