The processes of vegetation change over time, or plant succession, are also the processes involved in plant community restoration. Restoration efforts attempt to use designed disturbance, seedbed preparation and sowing methods, and selection of adapted and compatible native plant materials to enhance ecological function. The large scale of wildfires and weed invasion requires large-scale approaches to restoration. Practices and equipment from traditional rangeland revegetation are being adapted to establish diverse, native communities. The challenge is to meet the establishment requirements of different species and to create weed-resistant plant communities.