Appendix 2—table 4. Main effects of categorical predictors on decomposer diversity, abundance and decomposition in the four datasets: Stressors - Biodiversity (Biodiv), Stressors - Abundance (Abdc), Nutrients - Biodiversity and Nutrients, Abundance.
Results are QM statistics and associated p-values of the second-level meta-analyses.
| Dataset | Response | Predictor | QM | p-value |
|---|---|---|---|---|
| Stressors - Biodiv | Diversity | Taxonomic group | 4.80 | 0.028 |
| Stressors - Abdc | Abundance | Taxonomic group | 10.10 | 0.001 |
| Nutrients - Biodiv | Diversity | Taxonomic group | 12.77 | <0.001 |
| Nutrients - Abdc | Abundance | Taxonomic group | 4.53 | 0.033 |
| Stressors - Biodiv | Diversity | Study type | 1.89 | 0.169 |
| Stressors - Abdc | Abundance | Study type | 0.92 | 0.338 |
| Nutrients - Biodiv | Diversity | Study type | 0.24 | 0.625 |
| Nutrients - Abdc | Abundance | Study type | 0.98 | 0.323 |
| Stressors - Biodiv | Diversity | Diversity metric | 1.67 | 0.196 |
| Nutrients - Biodiv | Diversity | Diversity metric | 2.35 | 0.125 |
| Stressors - Biodiv | Decomposition | Study type | 0.16 | 0.693 |
| Stressors - Abdc | Decomposition | Study type | 1.85 | 0.174 |
| Nutrients - Biodiv | Decomposition | Study type | 2.69 | 0.101 |
| Nutrients - Abdc | Decomposition | Study type | 0.18 | 0.674 |