Table 2. Statistical results for the freshwater system. a) linear regression, b) ANCOVA with trophic position as predictor and c) asymmetrical two-way crossed ANOVA for the freshwater system with Number of taxa removed (no) and Sequence as main factors. The variability of the factor Sequence was then divided between 1) random versus non-random extinction sequence (R vs NR) and 2) differences among random extinctions sequences (among random). P values in bold correspond to significant results.

Sources of variation		Freshwater system
		Phytoplankton biomass		Periphyton dry mass		Bacterioplankton abundance		[Total nitrogen]		[Total phosphorus]		Multifunctioning (1st axis)		Multifunctioning (2nd axis)
		F	p	F	p	F	p	F	p	F	p	F	p	F	p
(a)	Adjusted R2	0.2999		0.0000		0.0000		0.0000		0.0000		0.0000		0.0165
	Body size	13.4256	0.0010	0.2444	0.6249	0.4730	0.4972	0.1384	0.7127	0.0109	0.9175	0.2447	0.6247	1.4866	0.2329
(b)	Adjusted R2	0.4413		0.0000		0.0335		0.0000		0.0000		0.0703		0.1022
	Body size	17.5880	0.0003	0.2159	0.6459	0.5749	0.4549	0.1317	0.7195	0.0178	0.8950	0.3427	0.5631	1.7931	0.1917
	Trophic role	8.0858	0.0084	0.6096	0.4417	2.5059	0.1251	0.0045	0.9471	0.7745	0.3866	3.9235	0.0579	3.6714	0.0660
(c)	Adjusted R2	0.4609		0.2022		0.0156		0.0000		0.0000		0.2563		0.0000
	No. taxa removed	3.6046	0.0460	0.1042	0.9015	0.3314	0.7218	0.9490	0.4039	0.5676	0.5758	0.1468	0.8644	0.3430	0.7137
	Sequence
	R vs NR	10.3540	0.0020	0.3367	0.5637	0.1100	0.7412	0.0269	0.8702	2.6849	0.1061	0.3198	0.5736	0.2252	0.6367
	Among random	4.6910	0.0001	2.4851	0.0165	1.4601	0.1815	1.0383	0.4197	1.4285	0.1942	3.3077	0.0022	1.4527	0.1844
	No. × Sequence
	No. × (R vs NR)	0.4688	0.6278	1.7206	0.1869	0.2273	0.7973	0.2713	0.7632	0.2107	0.8106	0.5428	0.5837	0.1102	0.8958
	No. × (Among random)	2.5285	0.0033	1.6856	0.0648	1.0667	0.4038	0.7946	0.6991	0.5916	0.8932	1.8936	0.0318	0.9900	0.4819