Table 3. Summary of mixed effects models for resilience and proportional resilience of aboveground biomass of the first cut in spring 2009 to test for effects of diversity (numbers of initially sown species and functional group richness), management (separated into mowing and fertilizer amounts) and drought treatments.

		Resilience Spring 2009				proportional Resilience 2009
	df	AIC	L ratio	p		AIC	L ratio	p
Nullmodel	6	3898,242				1024,902
Block	9	3903,177	1,065	0.7855		1026,706	4,196	0.2410
Species richness (log-scale) = SR	10	3903,771	1,406	0.2357		1026,624	2,081	0.1491
Number of functional groups = FG	11	3905,674	0,097	0.7557		1028,398	0,226	0.6345
Mowing = M	12	3905,225	2,449	0.1176		1029,770	0,628	0.4280
M×SR	13	3907,219	0,006	0.9395		1030,613	1,157	0.2821
M×FG	14	3909,208	0,011	0.9161		1032,446	0,167	0.6826
Fertilizer amount = F	15	3907,540	3,668	0.0555		1032,955	1,491	0.2221
F×SR	16	3904,600	4,939	0.0263	*	1033,658	1,297	0.2548
F×FG	17	3905,130	1,470	0.2253		1033,873	1,784	0.1816

Models were fitted by stepwise inclusion of variables and likelihood ratio tests (L ratio) were applied to assess statistical significance of variables (p-values). Significance is given with * = p<0.05, ** = p<0.01, *** = p<0.001; df = degrees of freedom.