Figure 2
From: Simple rules for construction of a geometric nest structure by pufferfish
Simulation model for nest construction behavior of pufferfish. (A) The schematic representation of the simulation. Briefly, on a two-dimensional square lattice, using the measured parameters (Table 1), the trajectory of excavation (vector) was obtained by determining an entry position (filled circle), a length of excavation, and the direction of excavation. The angles of the entry positions to the center were randomly chosen. Excavation occurs on the vector. The example of excavation below shows the change of heights by the excavation, defined in dependence on the assumed body width of pufferfish (b) and the factor of sand diffusion (f). Darker color represents lower sites. (B) The algorithm of the developed simulation. The details were described in the main text.
