Man's Garden by Daniel B. Botkin p155-157 Ecologists consider wilderness areas to be an integral part of the planet's self-sustaining natural ecosystem (the biosphere).

An ecosphere is a glass enclosed, self-contained and self-sustaining closed ecosystem sold primarily as a gift or experiment.

The results support the use of AM fungi as a biological tool in the restoration of biotopes to self-sustaining ecosystems.

"It has to have ties with a larger self-sustaining ecosystem, but Birch park has been cut off from its natural ecosystem by development."

Two large Fiordland islands, Resolution and Secretary, have been prepared as self-sustaining ecosystems for the Kakapo.

The point of this game is to experiment and create a self-sustaining ecosystem.

Of course, in a self-sustaining ecosystem, a place for crops to grow would be set aside, allowing foods to be grown and cultivated.

Some green spaces maintain a natural environment with a native and self-sustaining ecosystem.

Starting in 2009, the National Park Service will begin restoring Muir Beach to create a functional, self-sustaining ecosystem and improve visitor access.

But if this is to be a natural place, too, with healthy, self-sustaining ecosystems, then people need to approach it in a whole new way.