"The increased diversity of mobile species would have contributed to more complex ecological communities," he said.

In both cases, this may happen in isolated or complex environmental microbial communities.

A complex community in a simple habitat: an experimental study with bacteria and phage.

But now suddenly she was mistress of a complex community.

They suggest a more complex and dense community than researchers had known lived in the area.

Outside experts say the Bruderhof is a complex community that has developed both positive and negative patterns over more than seven decades of existence.

Its people built complex communities with multi-story buildings and used highly developed irrigation systems to support agriculture.

The mouth harbors a diverse, abundant and complex microbial community.

Osborne Village is a complex urban community with a rich heritage and diverse built forms.

The bedeguar is a good example of a complex community of insects.