RUS  ENG
Full version
JOURNALS // Meždunarodnyj naučno-issledovatel'skij žurnal // Archive

Meždunar. nauč.-issled. žurn., 2022 Issue 10(124), Pages 1–5 (Mi irj649)

MATHEMATICAL MODELING, NUMERICAL METHODS AND PROGRAM COMPLEXES

A mathematical model of single population dispersal

N. Gasratova, E. P. Kolpak, A. B. Goncharova

St. Petersburg State University

Abstract: The mathematical model is based on the variant of species population settlement in different but close habitats. It is assumed that the dynamics of the population community in a particular habitat depends on its properties and internal regulatory mechanisms. That is, fertility and mortality are determined by a trophic resource, while migration of individuals to neighboring habitats is determined by the search for a trophic resource or by sociogenic factors. Resettlement is considered as a random movement of some individuals from the “maternal” zone into neighboring habitats. The model is represented by a Cauchy problem for a system of ordinary differential equations connected by a matrix of “transitions”. The logistic equation is taken as the basis of the model of population dynamics of a single population. All parameters and characteristics of zones are chosen randomly from a given range. Numerical implementation of the solutions is carried out in the programming environment of the mathematical package Matlab with the use of vectorization of calculations.

Keywords: mathematical modeling, sustainability, population, resettlement, trophic resource.

DOI: 10.23670/IRJ.2022.124.11



© Steklov Math. Inst. of RAS, 2024