What primary succession is observed on Surtsey?

It’s hard to study primary succession, because bits of new land don’t just appear every day, but in 1963, Surtsey,  a new volcanic island, emerged near Iceland and has been studied ever since as an example of colonisation and primary succession:

http://www.surtsey.is/index_eng.htm

http://en.wikipedia.org/wiki/Surtsey