Researchers hesitate to define such, but use ecology principles: you want lots of diversity, lots of different species, and lots of some species and less of others. (biomeonboardawareness.com)
Samara is not only about beach life, you can also find lots of diversity in mangroves! (costarica-travelguide.com)
Grew up in the East End of Vancouver, where there was lots of diversity of people from many backgrounds. (slaw.ca)