Figure 3: Schema of species distribution modeling in Davidia involucrata, taking into account the uncertainty derived from the evaluation of model performance. | Scientific Reports

Figure 3: Schema of species distribution modeling in Davidia involucrata, taking into account the uncertainty derived from the evaluation of model performance.

From: Potential effects of climate change on geographic distribution of the Tertiary relict tree species Davidia involucrata in China

Figure 3

(A) A “standard” model for the present time period is obtained by averaging the multiple runs (20 in our case) from the cross-validation (or from another sampling technique, e.g. subsample); (B) a map showing the variability in the predicted suitable areas among all generated models (20) from the cross-validation (“uncertainty” map); (C) A “refined” map is obtained by removing the pixels that are forecast by <95% of the models (that is, the pixels shaded in yellow, brown and light green). Purple lines: national boundaries between China and India (at issue). Maps were generated using the software ArcGIS v. 9.3.

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