Appendix 3—table 4. Summary table of structural equation modelling (SEM) analysis based on data excluding extreme values of effect sizes.

Standardized (Std.est.) and unstandardized estimate (Est.) path coefficients from SEMs for the four datasets.

Dataset	Response	Predictor	Std.est.	Est.	SE	Crit.value	Df	p-value
Stress., Biodiv	Decomposition	Diversity	0.41	0.40	0.18	2.20	18	0.041
Stress., Biodiv	Decomposition	Stressor intensity	−0.04	−0.01	0.04	−0.24	18	0.814
Stress., Biodiv	Diversity	Stressor intensity	−0.44	−0.10	0.04	−2.75	17	0.014
Stress., Abdc	Decomposition	Abundance	0.30	0.24	0.11	2.24	23	0.035
Stress., Abdc	Decomposition	Stressor intensity	0.05	0.01	0.03	0.35	23	0.731
Stress., Abdc	Abundance	Stressor intensity	0.00	0.00	0.04	−0.02	23	0.980
Nut., Biodiv	Decomposition	Diversity	0.00	0.00	0.11	0.02	19	0.986
Nut., Biodiv	Decomposition	Nutrient intensity	−0.18	−0.08	0.06	−1.30	19	0.210
Nut., Biodiv	Diversity	Nutrient intensity	−0.53	−0.24	0.07	−3.36	18	0.003
Nut., Abdc	Decomposition	Abundance	0.00	0.00	0.09	0.04	37	0.968
Nut., Abdc	Decomposition	Nutrient intensity	−0.38	−0.13	0.04	−3.26	37	0.002
Nut., Abdc	Abundance	Nutrient intensity	−0.24	−0.09	0.05	−1.73	37	0.092