Significats de planetary ecology en anglès

Human beings were the stewards of the planetary ecology of Gaea.

And that destroyed a unique planetary ecology.

As Frank Lethbridge and Ainsley Jedrusinski kept reminding her, every creature-evenhexapumas-hadtheir part to play in the complex planetary ecology.

The rampant pollution which had altered the planetary ecology for the worse, creating an era where ships flew between the stars to found new colonies.