Extended Data Fig. 3: Correlation between different crowding indices.
From: Consequences of spatial patterns for coexistence in species-rich plant communities
We estimated for all individuals of a species f the correlation between their crowding indices nkff and nkfβ (a) and nkfh and nkfβ (b). The crowding index nkff counts the conspecific neighbours of individual k within distance R = 10 m, nkfh counts the corresponding number of heterospecific neighbours, and nkfβ weights each heterospecific neighbour by its relative competition strength βfi/βff. The boxplots show the distribution of the Pearson correlation coefficients for each focal species, separately for the nine forest plots, indicating 10th, 25th, 50th, 75th, 90th percentiles and outliers. We used for the analysis all individuals with dbh ≥ 10 cm and included focal species with more than 50 individuals. For plot names see Supplementary Table 1.