Table 2.

Results of parameter estimates based on the final robust generalized estimating equations (GEE) model of V . cholerae abundance in the lake Neusiedler See and in the shallow alkaline lakes. (A) Robust model calculated for the Neusiedler See that was comparatively applied to the alkaline lakes. (B) Robust model calculated for the alkaline lakes that were comparatively applied to the Neusiedler See. All predictors log transformed. Standardized model coefficient calculated as model coefficient times standard deviation of the respective parameter. Generalized estimating equations model with normal deviates and identity link, sampling point as subject effect, sampling time point as inner subject effect and a two‐dependent correlation structure. n.a., not analysed (no data available)

A:		Robust model Neusiedler See				Alkaline lakes
Variable	Model coefficient	95% confidence interval	Standardized model coefficient	Wald Chi2	P‐value	Model coefficient	P‐value
Constant term	0.15	−0.28–0.58		0.5	>0.05	1.26	<0.001
Water temperature [°C]	0.69	0.55–0.84	0.154	85.1	<0.001	1.03	<0.001
Copepod abundance [indiv. m−3]	−0.19	−0.28–−0.09	−0.099	51.1	<0.001	−0.15	<0.001
Cladoceran abundance [indiv. m−3]	0.07	0.05–0.09	0.071	16.1	<0.001	0.05	<0.001
Total suspended solids [mg L−1]	0.45	0.15–0.75	0.320	8.8	<0.005	0.21	>0.05
NH4 [μg L−1]	0.10	0.04–0.16	0.029	9.4	<0.005	n.a.	n.a.

B:		Robust model alkaline lakes				Neusiedler See
Variable	Model coefficient	95% confidence interval	Standardized model coefficient	Wald Chi2	P‐value	Model coefficient	P‐value
Constant term	3.24	3.06–3.42		1279.1	<0.001	1.63	>0.05
Water temperature [°C]	1.59	1.42–1.76	0.511	327.5	<0.001	0.58	<0.001
Dissolved organic carbon [mg L−1]	2.80	2.53–3.08	1.090	396.1	<0.001	1.33	<0.01
Total phosphorus [μg L−1]	1.03	0.56–1.50	0.469	18.4	<0.001	0.41	<0.05
Conductivity [μS cm−1]	−2.80	−3.23–−2.38	0.964	165.9	<0.001	−0.99	>0.05