Figure 2
From: Spatial structure arising from chase-escape interactions with crowding
Visualisation of directional bias for a community of chasers (red dots) and escapees (black dots). In each subfigure, (a–d), the locations of individuals are superimposed with the level curves of the bias landscapes. The bias vectors shown with black arrows represent the preferred direction of individuals. The length of arrows indicate the strength of bias. Results in a correspond to intraspecies interactions of chasers only. Results in (b) show intraspecies interactions of escapees only. Results in (c,d) show the net interaction for both species. Parameter values are γcc = 0.0, γce = −0.2, γec = γee = 0.3 and σcc = σce = σec = σee = 0.5. Note that γcc = 0, meaning that there are no interactions between chasers in (a), which explains why there is no colour bar on this subfigure.
