Answer:
occurs after a fire or flood
Explanation:
Secondary succession -
It is the type of ecological succession of the life of the plants .
It is the process , which decreases an established ecosystem into a smaller population of the species , the secondary succession occurs on the soil which is preexisting .
The factor which can affect the secondary succession are as follows -
competition -colonization trade - offs , initial composition , trophic interaction .
The factor which control the increase in the abundance of a species can be determined by -
bulk density , soil texture , landscape structure , micro climate , seed production .