Appendix 2—table 3. Summary table of structural equation modelling (SEM) analysis.

Unstandardized path coefficients from SEMs for the four datasets: Stressors - Biodiversity (Biodiv), Stressors - Abundance (Abdc), Nutrients - Biodiversity and Nutrients, Abundance. SEMs also incorporated categorical predictors (study type, taxonomic group and diversity metric, see Materials and methods).

Dataset	Response	Predictor	Estimate	SE	Crit.value	Df	p-Value
Stressors - Biodiv	Decomposition	Diversity	0.42	0.17	2.50	19	0.022
Stressors - Biodiv	Decomposition	Stressor intensity	−0.02	0.04	−0.47	19	0.643
Stressors - Biodiv	Diversity	Stressor intensity	−0.10	0.04	−2.44	18	0.025
Stressors - Abdc	Decomposition	Abundance	0.24	0.08	2.97	25	0.007
Stressors - Abdc	Decomposition	Stressor intensity	−0.01	0.03	−0.41	25	0.683
Stressors - Abdc	Abundance	Stressor intensity	0.00	0.05	0.03	25	0.977
Nutrients - Biodiv	Decomposition	Diversity	0.01	0.11	0.06	20	0.951
Nutrients - Biodiv	Decomposition	Nutrient intensity	−0.08	0.06	−1.21	20	0.239
Nutrients - Biodiv	Diversity	Nutrient intensity	−0.25	0.07	−3.51	19	0.002
Nutrients - Abdc	Decomposition	Abundance	0.08	0.10	0.76	44	0.451
Nutrients - Abdc	Decomposition	Nutrient intensity	−0.12	0.05	−2.16	44	0.037
Nutrients - Abdc	Abundance	Nutrient intensity	−0.06	0.06	−1.00	44	0.321