In this paper we make investigation of aperiodic modes Ricker’s model. It’s identified two qualitatively different kinds of aperiodic modes for this model. It’s defined one of the selected types of aperiodic modes. We have called him interval time-periodic mode. For analyze of dynamics of one-dimensional system we used pseudo phase space with a big lag. The maps of the interval of periodic modes are made. We discuss the distribution of interval periodic modes into parameter space of Ricker’s model.
