Table 1.

Multivariate negative binomial regression model to evaluate the associations between snail abundance and predictor variables monitored throughout the study period

Variable	Regression coefficient	Standard error	P -value
Intercept	−0.532	0.577	0.37
SWB-type			< 0.001
Trench	3.823	0.732	< 0.001
Pond	1.292	0.548	0.019
Moist area	0.831	0.699	0.235
Furrow	0.879	0.509	0.084
Ditch	-	-
Region			< 0.001
Zoersel	−2.754	0.552
Bruges	-	-
Total monthly rainfall (mm)	0.006	0.003	0.028