Figure 4
Effect of drainage area on predicted spatial β-diversity of fish, invertebrates (“Invert.”) and bacteria, respectively. Each boxplot contains 100 values, representing the mean pairwise Jaccard distance for one of the 100 replicated choices of pairs within a group of reaches (“U”: upstream; “D”: downstream - see “Methods”). Boxes’ extent corresponds to interquantile range; whiskers’ extent to 2.5th-97.5th percentile range.
