This may cause a population decline or even local extinction.

Several studies have indicated humans probably arrived in Alaska at the same time or shortly before the local extinction of horses.

The following year he was more successful and returned annually until they in a few years had achieved local extinction.

Scientists have noted that further studies are needed to prevent the local extinction of this species.

This has led to either their local extinction or conflict with local people as these animals move beyond the confines of the park.

Some remaining populations may already have a high risk of local extinction (Quevedo et al. 2006a, p. 197).

This may cause populations to decline, or even local extinction.

The fate of the less efficient species is local extinction.

In other areas, encroachment due to overgrazing may also cause local extinction.

This has in some regions drastically reduced stocks, and even led to local extinctions.