On Evolution of Migrating Population with Two Competing Species

Maria Magdon-Maksymowicz, Andrzej Maksymowicz

Abstract


Computer experiment study of population evolution and its dynamics  is presented for two competing species A and B which share two habitats (1 and 2) of limited environmental capacity. The Penna model of biological aging,  based on concept of defective mutation accumulation was adopted for migrating population. In this paper we assume and concentrate on the case when only one species A is mobile. For isolated habitats and for any initial population, we get at equilibrium spatial population distribution (A,  B) between the two locations - A occupies location 1 while B-species is present in 2. The effect of migration between habitats is reported  for  some migration   scenarios. With increasing migration we get a sequence (A, B) -> (A, A&B) -> (A, A) -> (B, B) distribution. Another scenarios bring different sequences of population distribution, size and characteristics.

Keywords


computer simulation; population evolution; migration; Penna model; genetic mutations

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References


D. Brown and P. Rolhery: Models in Biology: Mathematics, Statistics and Computing, Wiley, New York, 1993.

T. J. Penna: A bit-string model for biological aging, J. Stat. Phys., 78 (1995), 1629-1633.

S. Moss de Oliveira, P. M. C. de Oliveira, and D. Stauffer: Evolution, Money, War and Computers, Teubner, Stuttgart-Leipzig, 1999.

M. S. Magdon: Effect of migration on population dynamics, Int. J. Modern Physics C 10, No 6, 1999, pp. 1163-1174.




DOI: https://doi.org/10.7494/csci.2013.14.4.615

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