Table 2.

Mixed model results for standardized richness with flow intermittence, data type (taxonomic versus functional) and their interaction as fixed effects, rivers as a random effect and sites as a random effect nested within rivers. Estimates and standard errors are provided for each parameter. There were 108 measures of standardized richness for each data type. Degrees of freedom for likelihood ratio tests are equal to one.

	Estimate	SE	χ2	p-value
Intercept	0.466	0.179
Flow intermittence	−0.024	0.002	73.173	< 0.001
Data type	−0.027	0.065	0.000	1.000
Flow intermittence × data type	0.001	0.002	0.355	0.551