Ergodic behavior of locally regulated branching populations
Abstract
For a class of processes modeling the evolution of a spatially structured population with migration and a logistic local regulation of the reproduction dynamics, we show convergence to an upper invariant measure from a suitable class of initial distributions. It follows from recent work of Alison Etheridge that this upper invariant measure is nontrivial for sufficiently large super-criticality in the reproduction. For sufficiently small super-criticality, we prove local extinction by comparison with a mean field model. This latter result extends also to more general local reproduction regulations.
Keywords
Cite
@article{arxiv.math/0509612,
title = {Ergodic behavior of locally regulated branching populations},
author = {M. Hutzenthaler and A. Wakolbinger},
journal= {arXiv preprint arXiv:math/0509612},
year = {2011}
}
Comments
Published at http://dx.doi.org/10.1214/105051606000000745 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)