Table 3.

Estimated effects of abiotic characteristics on biotic factors

Factors	Total Biomphalaria pfeifferi
	Abundance				Presence
	Estimate	Std. error	z value	P	Estimate	Std. error	z value	P
T °C	0.023	0.368	−0.064	0.949	0.307	0.063	4.871	< 0.001*
pH	−0.243	0.331	−0.735	0.462	−0.360	0.039	−9.104	< 0.001*
TDS	−0.038	0.109	−0.350	0.726	−0.175	0.015	−11.322	< 0.001*
EC	−0.017	0.055	−0.313	0.754	−0.086	0.007	−11.337	< 0.001*
LST_Min	0.360	0.426	0.845	0.398	0.659	0.056	11.80	< 0.001*
LST_Max	−0.332	0.358	−0.925	0.355	−0.830	0.069	−11.99	< 0.001*
LST	−4.050	2.177	−1.861	0.062	−6.092	0.478	−12.74	< 0.001*
RAH	0.055	0.063	0.866	0.386	0.116	0.010	11.48	< 0.001*
Pp	0.008	0.093	0.092	0.926	0.086	0.011	7.822	< 0.001*
Infected B. pfeifferi
T °C	0.408	1.237	0.33	0.74	−0.059	0.168	−0.349	0.727
pH	−1.33	104	−1.28	0.20	0.811	0.208	3.891	< 0.001*
TDS	0.054	0.256	0.21	0.83	0.142	0.047	3.077	0.002*
CE	0.032	0.134	0.24	0.81	0.065	0.023	0.827	0.005*
LST_Min	0.604	0.554	1.09	0.28	0.628	0.165	3.794	< 0.001*
LST_Max	−0.527	0.508	−1.04	0.301	−0.287	0.129	−2.214	0.029*
LST	−3.13	3.49	−0.90	0.37	3.304	0.705	4.686	< 0.001*
RAH	0.087	0.094	0.93	0.35	0.034	0.022	1.507	0.132
Pp	0.072	0.115	0.63	0.53	0.172	0.029	5.960	< 0.001*
Thermophilic coliforms
T °C	−0.051	0.075	−0.69	0.490	−0.014	0.034	−0.423	0.672
pH	1.287	0.213	6.04	< 0.001*	−0.319	0.229	−1.395	0.163
TDS	−0.035	0.034	−1.03	0.3	0.015	0.014	1.074	0.283
EC	−0.020	0.017	−1.16	0.25	0.007	0.007	1.037	0.3
LST_Min	0.130	0.168	0.78	0.44	−0.023	0.083	−0.280	0.779
LST_Max	−0.073	0.167	−0.44	0.66	0.014	0.079	0.182	0.855
LST	0.959	1.128	0.85	0.40	0.925	0.511	1.811	0.070
RAH	0.012	0.028	0.42	0.67	−0.005	0.013	−0.414	0.679
Pp	0.014	0.030	0.5	0.62	0.001	0.013	0.087	0.931
E. coli
T °C	−0.032	0.073	−0.44	0.66	0.014	0.034	0.423	0.672
pH	1.364	0.307	4.44	< 0.001*	0.319	0.229	1.395	0.163
TDS	−0.056	0.035	−1.56	0.117	−0.016	0.014	−1.074	0.283
EC	−0.030	0.018	−1.69	0.091	−0.007	0.007	−1.037	0.3
LST_Min	0.147	0.172	0.86	0.39	0.023	0.083	0.280	0.779
LST_Max	−0.084	0.170	−0.50	0.62	−0.014	0.079	−0.182	0.855
LST	0.030	1.143	0.03	0.98	−0.925	0.511	−1.811	0.070
RAH	0.016	0.028	0.57	0.57	0.006	0.013	0.41	0.679
Pp	0.0150	0.032	0.46	0.64	−0.001	0.014	−0.09	0.93

T °C: water temperature; pH: hydrogen potential; TDS: total dissolved solids; EC: electrical conductivity; LST_Min: minimum land surface temperature; LST_Max: maximum land surface temperature; LST: mean land surface temperature; RAH: relative air humidity; Pp: precipitation

*Indicates significant association at P < 0.05