Pattern Formation in a Semi-Ratio-Dependent Predator-Prey System with Diffusion

Figure 2

Dispersion relations: (I) (𝑑₂,𝛿)=(2,0.5); (II) (𝑑₂,𝛿)=(7,0.5); (III) (𝑑₂,𝛿)=(2,0.3); (IV1) (𝑑₂,𝛿)=(7,0.2); (IV2) (𝑑₂,𝛿)=(2,0.15); (V) (𝑑₂,𝛿)=(7,0.3). Solid line: the real parts of the eigenvalues; dashed line: imaginary parts of complex pair of eigenvalues.