2. changes to replace the secondary (Secondary succession) A change in the start, instead of having the creature before it was destroyed by humans. Animal or natural disasters. Changes to replace the secondary less than the primary
2. Replace the secondary (Secondary succession) was started in succession, which had life before. It was destroyed by humans, animals or natural disasters. Secondary succession takes less than primary.
2. Secondary succession (Secondary succession) .A change of place began in the area which has been life before, but was destroyed by humans, animals, or natural disasters. Secondary succession takes less than data.