Figure 2
From: Partitioning beta diversity in a tropical karst seasonal rainforest in Southern China

Triangular plots (simplices) of the relationships between the 70,125 pairwise inter-site values for the 20 × 20 m cell in the 15-ha Nnonggang plot. Each point (black dot) represents a pair of sites. Their positions were determined by a triplet of values from the Similarity = (1 − βBC), BC.BAL (balanced variation in abundance), BC.GRA (abundance gradients) matrices; each triplet sums to 1. The large central dot in each graph (red in the online version) is the centroid of the points; the larger dots (black in the online version) represent the mean values of the Similarity, BC.BAL, and BC.GRA components.