Figure 4 | Scientific Reports

Figure 4

From: Precipitation and potential evapotranspiration determine the distribution patterns of threatened plant species in Sichuan Province, China

Figure 4

Structural equation model (SEM) showed the pathways explaining the significant effects of climate, habitat heterogeneity, and human influence on the threatened species richness. The number in the arrow and its thickness denotes the standardized partial regression coefficient. Significance: *p < 0.05; **p < 0.005; ***p < 0.001. Abbreviations are in Table 1.

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