Research on aperiodic behavior in a new hybrid model of population dynamics
Article discusses phenomenon of transition from a stable equilibrium to the chaotic motion in a nonlinear dynamic system in the case when there is no cascade of bifurcations occurring due to variation of parameters. New discrete-continuous mathematical model of the ``stock-recruitment'' type is based on the influence of step-wise changes in early onto genesis of anadromous of the fish species according to the theory of organisms development. A multistable dynamic system having four non trivial equilibrium points is investigated. It is shown that chaotic transience realizes when locally-disconnected basin boundaries of regular attractors are present