Figure 4
From: Identifying community thresholds for lotic benthic diatoms in response to human disturbance
Compositional changes of benthic diatom assemblages across individual gradient of human land use and important natural environmental variables in tributaries of the Three Gorges Reservoir. Blue lines indicate ratios between binned raw importance density (gray vertical lines) and densities of observed predictor values (red lines) with horizontal dashed lines representing ratios = 1. Ratios >1 indicate steep changes. The cross points between the blue and dashed lines where subsequent ratios >1 were identified as thresholds. For the full names of each variable, please see Table 1.
