Ecosystems: between a superorganism and an identity workshop
"Because evolution is such a symbolic process, we now can artificially create it and attempt to govern it. But because ecological change is so body bound, we cannot synthesize it well until we can more easily simulate bodies and richer artificial environments."
Ecology is what happens in systems like Tierra, where the evolving species can interact with each other. The evolutionary landscape is the space of possible genomes, while the ecological landscape is the space of interactions between genes, species and the environment.