Fig. 3: Potential drivers of functional connectivity in various biomes. | Communications Earth & Environment

Fig. 3: Potential drivers of functional connectivity in various biomes.

From: Current national nature reserves are insufficient to safeguard the long-term survival of birds and mammals in China

Fig. 3

Random forest (RF) mean predictor importance (percentage of increase of mean square error) of proportion of habitat area (HA), artificial landscape intensity (ALI), ecosystem diversity (ED), and NNRs area (AREA) as drivers for functional connectivity. The accuracy importance measure was computed for each tree and averaged over the forest (500 trees). Percentage increases in the MSE (mean squared error) of variables were used to estimate the importance of these predictors, and higher MSE% values imply more important predictors. Significance levels are as follows: *P < 0.05 and **P < 0.01. MSE, mean squared error.

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