Generalizing clusters of similar species as a signature of coexistence under competition
Fig 3
Clustering across niche mechanisms.
Bars show percentage of replicates that were significantly clustered at level p < 0.05 according to the k-means metric (blue) and the Ripley’s K metric (orange), out of 100 replicates. Numbers next to bars show average z-score. For comparison, 8% of neutral communities were clustered by the k-means metric (), and 7% by the Ripley’s K metric (
), thus close to the 5% background detection expected from a null model (z-scores and p-values were obtained by comparing each replicate against 100 null communities. m = 0.08, c. 400 regional species across scenarios).