Table 1. SLM multivariate models for the residuals of species richness of vascular plants and mammals in the terrestrial and inland water ecosystems of China.
| Model | Predictors | Whole China | EMR | NAR | QTR | |
|---|---|---|---|---|---|---|
| Vascular plants | ||||||
| Model with 6 predictors | Elevational range | z | 15.68*** | 9.19*** | 6.34*** | 4.15*** |
| Net primary productivity | z | 4.83*** | — | — | 5.59*** | |
| Normalized difference vegetation index | z | — | — | 5.47*** | — | |
| Maximum temperature of the warmest month | z | 3.64*** | −2.72** | — | — | |
| Minimum temperature of the coldest month | z | — | 6.22*** | — | −1.72 | |
| Annual potential evapotranspiration | z | — | −1.95 | — | — | |
| Mean diurnal range | z | — | — | 0.85 | — | |
| Temperature annual range | z | — | — | — | 0.03 | |
| Mean annual precipitation | z | 6.80*** | — | — | — | |
| Precipitation of the driest quarter | z | — | — | −0.33 | 1.37 | |
| Precipitation seasonality | z | −3.83*** | −2.35* | −1.79 | −2.18* | |
| Main land cover type | z | −4.11*** | −2.23* | −1.48 | — | |
| AIC | −1147.1 | −1606.7 | −147.5 | 153.6 | ||
| Fitted values | r2 | 0.61 | 0.58 | 0.53 | 0.51 | |
| Moran’s I | −0.06 | −0.02 | −0.08 | 0.00 | ||
| 19-predictor model | AIC | −1202.6 | −1626.8 | −148.7 | 167.4 | |
| Fitted values | r2 | 0.62 | 0.60 | 0.58 | 0.55 | |
| Mammals | ||||||
| Model with 6 predictors | Elevational range | z | 9.59*** | 6.71*** | 3.54*** | 3.79*** |
| Mean annual precipitation | z | — | 6.22*** | — | — | |
| Precipitation of the driest quarter | z | — | — | 0.62 | — | |
| Precipitation of the wettest quarter | z | — | — | −1.17 | — | |
| Net primary productivity | z | 8.65*** | 0.10 | — | 4.46*** | |
| Mean annual dryness | z | — | — | — | 2.39* | |
| Normalized difference vegetation index | z | — | — | 3.27** | — | |
| Maximum temperature of the warmest month | z | 2.67*** | −4.83*** | — | — | |
| Minimum temperature of the coldest month | z | — | — | — | −0.59 | |
| Temperature annual range | z | −2.64** | — | — | — | |
| Precipitation seasonality | z | −2.09* | 1.12 | −0.44 | −4.05*** | |
| Main land cover type | z | −7.11*** | −4.02*** | — | — | |
| Number of land cover types | z | — | — | −0.21 | — | |
| Mean elevation | z | — | — | — | −2.09* | |
| AIC | −1505.0 | −1443.3 | −170.5 | −83.4 | ||
| Fitted values | r2 | 0.53 | 0.54 | 0.36 | 0.68 | |
| Moran’s I | −0.02 | −0.01 | −0.00 | 0.01 | ||
| 19-predictor model | AIC | −1524.2 | −1446.4 | −173.7 | −70.0 | |
| Fitted values | r2 | 0.54 | 0.55 | 0.43 | 0.68 | |
We divided the area of China into three regions: the Eastern Monsoon Region (EMR, n = 1995), the Northwestern Arid Region (NAR, n = 210), and the Qinghai-Tibet Plateau Region (QTR, n = 171). Species richness and all continuous variables were log10-transformed. Data on residuals of species richness were used to remove the effects of area (*Pr(>|z|) <0.05, ** Pr(>|z|) <0.01, ***Pr(>|z|) <0.001).