Appendix 2—table 1. Assessment of publication bias.

Results from Egger’s regressions showing the intercepts, standard error (SE) and p-value of regressions between standard normal deviate of each response variable (effect sizes) and the inverse of their standard errors. Models also included stressor or nutrient intensity as a covariate.

Dataset	Variable	Publication bias p	Publication bias	Intercept	SE
Stressors - Biodiv	Biodiversity	0.10	no	−1.36	0.83
Stressors - Biodiv	Decomposition	0.58	no	−1.07	1.94
Stressors - Abdc	Abundance	0.14	no	−1.49	1.02
Stressors - Abdc	Decomposition	0.68	no	−0.67	1.60
Nutrients - Biodiv	Biodiversity	0.37	no	0.76	0.86
Nutrients - Biodiv	Decomposition	0.19	no	3.35	2.55
Nutrients - Abdc	Abundance	0.08	no	1.21	0.70
Nutrients - Abdc	Decomposition	<0.001	pub. bias	5.31	1.45