Table 2.

Results of linear mixed-effects model fit by REML on sea urchin grazing in mesocosm experiment.

Tank	Intercept	Residual
Random effects
Standard deviation	0.213	1.73

	Estimate	SE	df	t	P
Fixed effects
Intercept	0.689	0.552	712	1.25	0.212
Treatment	0.316	0.209	18	1.51	0.149
Habitat	− 0.020	0.762	712	− 0.026	0.979
Time	0.811	0.203	712	4.00	< 0.001
Treatment × habitat	− 0.369	0.290	712	− 1.27	0.203
Treatment × time	− 0.289	0.074	712	− 3.92	< 0.001
Habitat × time	− 0.767	0.287	712	− 2.68	0.008
Treatment × habitat × time	0.252	0.104	712	2.42	0.016

Bold text indicates statistical significance at α = 0.05.