Figure 11

Distribution of the number of holes after seven years, depending on holeRate mean. The black line represents a normalised outline histogram showing the density function of the number of holes as counted by Tami and colleagues [29] in 100 nets. The coloured lines represent the normalised histogram mid-points of the number of holes in simulated nets depending on the holeRate mean, which is varied over 0.9 (green), 1.8 (blue) and 3.8 (red), with a constant holeRate sigma (see below) of 0.80.