With a bit of thought, its ecological value can be safeguarded.

Any such visit must not cause harm to the ecological or scientific values of the area.

Such a solution does nothing to help restore the river's ecological value.

Their environmental and ecological value to the world would seem to be beyond measure.

The sanctuary has a good ecological value and habitat for number of wild animals.

Due to their ecological value, these areas are legally protected.

For many, there is a strong ecological value to bird-watching.

Since it was established, the refuge has identified 180,000 acres with special ecological value.

The refuge was created in 1913 because of the land's ecological value.

Most have significant ecological value, so preserving the balance between fresh and salt water is important.