Spatial Analysis Metrica Quadrat Grid Matrix
4X4 6X6 8X8 10X10
Quadrat Unit Size 6.25 2.78 1.56 1.00
Taylor’s Density Variance/Mean ratio 1.517 2.268 2.667 1.582
Chi-Square for V/M ratio 22.76 79.36 168.00 126.54
V/M ratio χ2 Significance (p)< 0.08908
(random)
0.00003
(clustered)
0.00000
(very clustered)
0.00072
(clustered)
Morista Dispersion Index 1.242 2.386 4.387 2.455
Standadized Morista Coefficient 0.3106 0.5119 0.521 0.5039
Index of Cluster Size 0.517 1.268 1.667 0.582
aIndices of dispersion as defined in [1]
Table 1: Influence of grid dimensions on quadrat-based indices of dispersiona for spatial distribution analysis of the landscape image in Figure 4.