Figure 1

Bifurcation diagram for the model of the population density for single-species. (1) Bifurcation appears at ${\lambda }_0=\mu +\alpha -\frac{5}{16}\frac{a_2^2}{a_3}$. (2) Bifurcated attractor ${\mathrm{\Sigma }}_{b_1}$ is the boundary of the shaded region. (3) The first horizontal solid line from above denotes that the solution $v=v_0$ is stable, and the horizontal dotted line means this solution is unstable.