However, as shown above, these costs may come along with some negative environmental effects on native ecosystems.

And native ecosystems were so damaged there was almost nothing indigenous to cook.

The dominance is such that it clearly threatens the diversity of many native ecosystems.

It is invasive in Hawaii and regarded as a serious threat to native ecosystems.

But the isolation has also left its native ecosystems susceptible to foreign invasion.

Now, fire ants in their native ecosystem are not a bad thing.

In order to conserve Florida's native ecosystems and landscapes six strategies were used to help create the network design.

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

The transformation of native ecosystems by such foreign invaders is increasingly hard to escape, experts say.

Fire ants have also disturbed the natural balance of native ecosystems.