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Table 1 OLS regression model: association between mean snail density and natural characteristics in Dongting Lake Region

From: Identification of optimum scopes of environmental factors for snails using spatial analysis techniques in Dongting Lake Region, China

Model Fit
R2 Adjusted R2 Log likelihood AIC
0.14 0.13 −866.91 1743.82
Model Estimation
  VIF β SD t P  
Constant   17.04 3.38 5.05 0.00 **
Water- content (%) 1.46 −0.03 0.01 −3.78 0.00 **
Elevation (m) 1.16 0.02 0.03 0.75 0.45 *
PH 1.45 −1.30 0.48 −2.72 0.01 **
Temperature (°C) 1.26 −0.13 0.09 −1.41 0.16 *
Diagnostic Tests
  Tests DF Value P
Normality of errors Jarque-Bera 2 0.03 0.99
Heteroskedasticity Breusch-Pagan 4 12.97 0.01
  Koenker-Bassett 4 21.06 0.00
  White 14 54.99 0.00
Spatial dependence Moran’sI(error) 0.48 14.79 0.00
  1. **P < 0.05, *P > 0.05.