Particle statistics and population dynamics

  • Escudero C
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Abstract

We study a master equation system modelling a population dynamics problem in a lattice. The problem is the calculation of the minimum size of a refuge that can protect a population from hostile external conditions, the so-called critical patch size problem. We analyse both cases in which the particles are considered fermions and bosons and show using exact analytical methods that, while the Fermi-Dirac statistics lead to certain extinction for any refuge size, the Bose-Einstein statistics allow survival even for the minimal refuge. © 2005 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Critical patch size
  • Extinction
  • Population dynamics
  • Stochastic processes

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Authors

  • Carlos Escudero

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