FIGURE 2. Patterns of local species richness.
From the following article:
Neutral metacommunity models predict fish diversity patterns in Mississippi–Missouri basin
Rachata Muneepeerakul, Enrico Bertuzzo, Heather J. Lynch, William F. Fagan, Andrea Rinaldo & Ignacio Rodriguez-Iturbe
Nature 453, 220-222(8 May 2008)
doi:10.1038/nature06813
a, LSR profile as a function of the topological distance (see Methods) from the outlet located in Atchafalaya, Louisiana (NHDPlus sub-basin number 08080101). b, Frequency distribution of LSR. The squares (average values) with error bars (ranging from the 25th to the 75th quantile) and bar plots represent the empirical data, and the lines represent the average values of the model results.