487810.fig.002a
(a)
487810.fig.002b
(b)
487810.fig.002c
(c)
487810.fig.002d
(d)
Figure 2: Typical Turing patterns of in model (7) with parameters , , , , , , , , , and . Times: (a) 0; (b) 50; (c) 250; (d) 2500.