Research Article

Hopf Bifurcation, Hopf-Hopf Bifurcation, and Period-Doubling Bifurcation in a Four-Species Food Web

Figure 11

Bifurcation diagrams of the food web system. (a) Maxima for the population density of middle predator ; (b) and (c) magnifications of (a) when the r value ranges in and . The parameter values are provided in (45).
(a)
(b)
(c)