Table 1.

Models of the effects of life type and host family (phylogeny) on functional community profiles

		model	AIC	R2	p
Protists	all functions	null	−41.8
		host family	−49.0	0.27	0.001
		host life type	−45.4	0.16	0.001
	information storage and processing	null	−36.8
		host life type	−39.0	0.11	0.001
		host family	−38.4	0.09	0.001
Bacteria	all functions	null	−85.0
		host family	−92.7	0.27	0.001
		host life type	−90.1	0.20	0.001
	metabolism	null	−92.4
		host life type	−98.1	0.22	0.001
		host family	−96.8	0.18	0.001

Effects were analyzed with Redundancy Analysis using the functional abundance table as response variable. Host family was the best explanatory variable for the combination of all protist functions, however life type explained more variance (R²) and produced a lower AIC for the category “information storage and processing” than host family. For all bacterial functions taken together, host family again explained a larger proportion of the variance, while life type was the best explanatory variable in the category “metabolism”