In many cases more than one seral stage evolves until climax conditions are attained.
[1] A prisere is a collection of seres making up the development of an area from non-vegetated surfaces to a climax community.
A primary succession describes those plant communities that occupy a site that has not previously been vegetated.
Computer modeling is sometimes used to evaluate likely succession stages in a seral community.
In the far western part of North America, chaparral plant communities are typically controlled by periodic natural wildfires.