EFFECT OF MIGRATION ON POPULATION DYNAMICS

Maria S. Magdoń ()
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Maria S. Magdoń: Department of Mathematical Statistics, Agriculture University, Al.Mickiewicza 21, 31-120 Cracow, Poland

International Journal of Modern Physics C (IJMPC), 1999, vol. 10, issue 06, 1163-1174

Abstract: Computer studies of evolution in migrating population are presented. The model is based on the Penna model. Migration for better living conditions does influence population dynamics in different locations. Examples of different scenarios of preferences to live in bigger or smaller populations (or environmental capacity, or living space available) are discussed. In the limiting case of low migration intensity, each location evolves independently according to its local rules and conditions, as expected. With increasing migration, the population distribution between locations changes, including the critical behavior of extinction of population for some locations for a specific set of the rules. Then, the deserted location may become populated again if the migration is still increasing as result of a pressure to move. The present version is devoted to the migration controlled exclusively by environmental factors, yet the model is primarily designed to describe both inherited mutations on environmental factors and can be used to study the effect of different races mixing, or recovery of environmental capacity of the fields when chasing 2 flocks of geese in a cyclic manner across 3 fields.

Keywords: Penna model; Population dynamics; Migration; Computer simulations (search for similar items in EconPapers)
Date: 1999
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DOI: 10.1142/S0129183199000942

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