The mere presence of humans would limit their success.

Nor is their presence limited to Iraq.

But the presence of a small keyboard and other controls may limit the immersion; it will be hard to tell without extended use.

The presence of water on three sides limits access to downtown Vancouver.

In the Colombian section, the presence of guerrillas and soldiers often severely limits river traffic.

Starfleet's presence as an administrative authority is temporary, and strictly limited to security operations.

The strong military presence in this area has long limited its expansion.

Defensively, his presence in the lane limits almost all penetration by the opponent.

The presence of background severely limited their choice of engagement.

The presence of these mostly introduced species may limit the roach population.