Good | Adeq. | Poor | Host. | |
Environment base value: | 3 | 0 | -2 | -4 |
Symbiotic Biology (tech): | 1 | 1 | 1 | |
Xeno. Genetics (tech): | 2 | 2 | 1 | |
Xeno. Hybridization (tech): | 1 | 2 | ||
Cyborgs (tech): | 2 | |||
Subtotal: | 4 | | 2 | 1 |
/Edit: Gah! I missed that Xeno Genetics also gives +2 to adequate planets!/
This isn't changed by the other possible population modifiers:
Species population trait (applied after all the above modifiers): +/- 0.25*ABS(Subtotal)
After-scaling population modifiers that don't consider habitability (apply the same modifier to good, adeq., poor and hostile environments):
Subterranean Habitation (tech): +1
Orbital Habitation (tech): +1
N-Dimensional Structures (tech): +2
Self-sustaining or the 3 specials (species): +3
Phototrophic modifiers (species): +3 (Blue), +1.5 (White), -1 (Red/Neutron), -10 (Black/No star).