Table 1 Contribution of each environmental variable to the Strongyloides stercoralis hookworm niche model
Variable | Percent contribution of variable to model | Optimal range/main categories |
|---|---|---|
S. stercoralis niche model | ||
Annual precipitation | 46.5 | 1000–1500 mm |
Land cover | 17.0 | 1. Urban 2. Paddy field 3. Cropland/other vegetation mosaic |
Annual mean temperature | 13.8 | > 26 ºC |
Soil pH | 10.5 | 5.3–6.5 |
Soil organic carbon | 7.2 | ≤ 50 g/kg |
Precipitation seasonality | 5 | 50-100 mm |
Hookworm niche model | ||
Annual precipitation | 32.2 | 1000–2000 mm |
Annual mean temperature | 26.6 | 26–30 ºC |
Land cover | 21.8 | 1. Mangrove 2. Urban 3. Cropland/other vegetation mosaic |
Soil pH | 10.6 | 5.5–6.5 |
Soil organic carbon | 3.9 | > 25 g/kg |
Precipitation seasonality | 1.9 | 60–120 mm |
Isothermality | 1.7 | < 40 ºC |
Annual temperature range | 1.2 | < 14 ºC |
Annual mean diurnal range | 0.1 | < 2 ºC |