Figure 2
From: A Physics-Inspired Mechanistic Model of Migratory Movement Patterns in Birds
Diagram to demonstrate how potential at point (i, j), where (i, j) is a neighbour of the current bird location (x, y) (shaded grey), is calculated. Each lattice point (k, l) has a corresponding chlorophyll concentration, which produces a potential field proportional to the concentration that decays as 1/r ij,kl . The potential component due to resources at (i, j) is the sum of all such potential fields. The wind component of the potential at (i, j) is calculated from the dot product of wind vector \({\underline{w}}_{xy}\) at (x, y) with the displacement vector from (x, y) to (i, j).
