Table 1 Spatial risk factors, standardized methods, and relative importance of each factor
Factors | Fuzzy membership functions | Inflection points | Weights | |||
|---|---|---|---|---|---|---|
a | b | c | d | |||
Bat preferred area | Sigmoidal, monotonically increasing | 0 | 0.5 | 0.5 | 0.5 | 0.18611 |
Distance to the nearest bat colony | Sigmoidal, monotonically decreasing | 5 km. | 5 km. | 5 km. | 30 km. | 0.28016 |
Distance to the nearest forest | Linear, monotonically decreasing | 100 m. | 100 m. | 100 m. | 23 km. | 0.06887 |
Distance to the nearest orchard | Linear, monotonically decreasing | 0 | 0 | 0 | 500 m. | 0.11719 |
Distance to the nearest water body | Linear, monotonically decreasing | 0 | 0 | 0 | 1 km. | 0.03663 |
Human population density | Sigmoidal, monotonically decreasing | 100 per km2 | 800 per km2 | 800 per km2 | 800 per km2 | 0.06979 |
Pig population density | Linear, monotonically increasing | 0 per km2 | 1,000 per km2 | 1,000 per km2 | 1,000 per km2 | 0.24126 |