Complex sentence: Part of the wetland area is protected in the 147 km 2 Narran Lake Nature Reserve; however, the vegetation and the waterbird colonies are at risk from reduced flooding caused by upstream water abstraction for agriculture in Queensland.
Split into simpler sentences: Part of the wetland is protected in the 147 km 2 Narran Lake Nature Reserve. However, the vegetation and the waterbird colonies are at risk from reduced flooding caused by upstream water abstraction for agriculture in Queensland.