On Stable Regimes of coexistence of populations Occurring in a Discrete

摘要

Conditions and regimes of populations stable coexistence which are present in a discrete model "host-parasite" are studied by analytical and qualitative methods. It is shown that the mode possesses at least two kinds of such stable regimes, namely: the one whose population numbers remain unchangeable in the course of time and the other whose pupulation numbers vary in absolutely unpredictable way as time proceeds.