Table 2.
The suitable range and percent contribution of each environmental condition for scrub typhus occurrence
| Variable | Description(unit) | Suitable rangea | Percent contributiond |
|---|---|---|---|
| BIO_01 | Annual mean temperature(°C) | 11.3–14.3 | 1.8 |
| BIO_02 | Mean diurnal range | 8.7–10.7 | 14.5 |
| BIO_04 | Temperature seasonality | 920.0–980.0 | 24.9 |
| BIO_05 | Max temperature of warmest month(°C) | 31.7–32.8 | 1.1 |
| BIO_06 | Min temperature of coldest month(°C) | −4.2 to-1.2 | 19.9 |
| BIO_12 | Annual precipitation (mm) | 740.0–1000.0 | 3.6 |
| BIO_13 | Precipitation of wettest month (mm) | 196.0–275.0 | 8.7 |
| BIO_14 | Precipitation of driest month (mm) | 17.0–28.0 | 2.0 |
| BIO_15 | Precipitation seasonality (mm) | 58.0–82.0 | 3.6 |
| prec | Precipitation (mm) | 22.0–71.0 | 0.5 |
| tavg | Monthly average temperature (°C) | 8.9–11.1 | 5.6 |
| wind | Wind speed (m s-1) | 2.2–2.5 | 1.6 |
| NDVI | Normalized difference vegetation index | 0.18–0.39 | 7.5 |
| LC | Land cover type | 7,13,14b | 4.7 |
| DEM | Altitude(m) | nonec | 0.0 |
| Aspect | Aspect | nonec | 0.0 |
| Slope | Slope | nonec | 0.0 |
aThe suitable range of each variable indicates the conditions within which the probability of scrub typhus occurrence is higher than 50%
b7: Open shrublands; 13: Urban and Built-up; 14: Cropland-Natural Vegetation Mosaic. The combination of these classes could be found in and around the countryside
cNonemeans this environmental factor has little effect on the final model construction
dThe percentage contribution illustrates the relative contributions of the environmental variables to the final training Maxent model using the averages of the repeated 10 runs