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

Figure 7

Periodic and quasiperiodic dynamics in Poincaré maps, corresponding to the dynamic variation in the bifurcation diagram of Figure 6.

(a) = 1.12

(b) = 1.148

(c) = 1.15

(d) = 1.175

(e) = 1.23

(f) = 1.27