TY - JOUR AB - We study numerically a coagulation-fragmentation model derivedby Niwa [17] and further elaborated by Degond et al. [5]. In [5] a unique equi-librium distribution of group sizes is shown to exist in both cases of continuousand discrete group size distributions. We provide a numerical investigation ofthese equilibria using three different methods to approximate the equilibrium:a recursive algorithm based on the work of Ma et. al. [12], a Newton methodand the resolution of the time-dependent problem. All three schemes are val-idated by showing that they approximate the predicted small and large sizeasymptotic behaviour of the equilibrium accurately. The recursive algorithm isused to investigate the transition from discrete to continuous size distributionsand the time evolution scheme is exploited to show uniform convergence toequilibrium in time and to determine convergence rates. AU - Degond,PAA AU - Engel,M DO - 10.3934/nhm.2017009 EP - 243 PY - 2017/// SN - 1556-181X SP - 217 TI - Numerical approximation of a coagulation-fragmentation model for animal group size statistics T2 - Networks and Heterogeneous Media UR - http://dx.doi.org/10.3934/nhm.2017009 UR - http://hdl.handle.net/10044/1/44307 VL - 12 ER -