The narrow sea is home to a unique and rich ecosystem.

Lost is the variety that indicates a rich, healthy ecosystem.

They challenged the view that there would be little impact on one of the world's richest ecosystems.

The city has a metabolism and a rich ecosystem, it's very heterogeneous.

Panama has one of the richest ecosystems on the planet.

It is said to be one of the world's richest marine ecosystems.

The tides create a significant mixing of the water, creating a rich local ecosystem.

Jamaica Bay, with its cluster of tiny islands, is a rich ecosystem.

Floodplains can support particularly rich ecosystems, both in quantity and diversity.

Nevertheless, the valleys are still areas of great natural beauty with rich ecosystems.