[Lazeb]

This cycle of "harmony" is futile and not a constant state that would exist without humans, unless any organism within that cycle recognises that it's simply an evolutionary race to the top as we have, with the reward being dominion over their respective territory. Only until some cosmic entity comes and ends it, or an extinction event occurs, putting the slate clean again for any traces of life left to begin the evolutionary race, repeating until that harmonious life as we see it can no longer exist.

The answer is obvious conservation until we as a species are immune to single planitary extinctions, but the romanticised view of our worlds ecology as some living entity, rather than a number of organisms interacting independently and adapting doesn't give a clear objective of what we should be doing and more importantly why.