I want to say something like:
This has implications up and down the biological hierarchy.
But "up and down" isn't very satisfying. "Across the hierarchy" is the right feel, but the wrong orientation.
The biological hierarchy I'm referring to here goes something like cell -> organism -> group -> population -> species.
Edit: I should have said before that, ideally, I would like it to suggest that the implications are being pushed up or down from somewhere in the middle of the hierarchy, if that makes sense. For example, some organism-level experiment or observation affects what we know about the cells within (down the hierarchy), and the species of the organism (up the hierarchy). Suggestions like 'spanning' and 'at all levels of', then, are definitely helpful, but not perfect. (Thanks!)