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Path analysis for pollen morphospecies richness, global surface temperature and atmospheric CO2.
| r | p-value | |
|---|---|---|
| z distribution | ||
| CO2 → richness | 0.85 | <0.001 |
| global surface temperature → richness | 0.19 | 0.02 |
| CO2 → global surface temperature | 0.29 | 0.07 |
| first difference + z distribution | ||
| CO2 → richness | 0.47 | 0.002 |
| global surface temp → richness | 0.34 | 0.06 |
| CO2 → global surface temperature | 0.06 | 0.76 |
