Institute of Applied Mathematics, Russian Academy of Science, Far-East Branch, 7 Radio ul., Vladivostok 690041, Russia

Abstract

The general approach for modelling of abundance dynamic for biological populations and communities is offered. The mechanisms of individual adaptation in changing environment are considered. The approach is detailed for population models without structure and with age structure. The property of solutions are investigated. As examples the author studies the concrete definitions of general models by analogy with models of Ricker and May. Theoretical analysis and calculations shows that survival of model population in extreme situation increases if adaptive behaviour is taking into account.