Particle statistics and population dynamics

✍ Scribed by Carlos Escudero

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 205 KB
• Volume: 354
• Category: Article
• ISSN: 0378-4371
• DOI: 10.1016/j.physa.2005.02.021

✦ Synopsis

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.