Wildlife crossings have also been important for protecting biodiversity in several areas of southern California.

Mr. Bush will almost certainly not sign the other major treaty, designed to protect biodiversity.

Other times they are created in the interest of protecting biodiversity.

So in order to protect biodiversity over wide geographic range reserve systems are established.

In the mid-20th century national parks started to protect biodiversity, not simply attractive scenery.

We also believe that much more needs to be done to support the farming industry, protect biodiversity and encourage sustainable food production.

What can we do to protect biodiversity on Earth?

"There's a more compelling reason now to invest $1 billion to try to protect biodiversity," he said.

This is essential if we are serious about protecting biodiversity.

The first challenge, of course, is to start protecting and restoring biodiversity.