Answer:Ecological succession.
It can be primary or secondary.
Primary succession occurs on a virgin land ,which has not be colonized before. E.g sand dunes or nee community of plant after volcanic eruptions.
Secondary succession occurs: on an area of land that has been cultivated in the past ,e.g abandoned farmland.
Ecological succession begins with the pioneer organisms(plants and Animals) Theses are the first organimds to inhabit the land arear.The changes in species composition continues with gradual transitions which may takes years to reach a natural stable community refers to as Climax community.
Step-by-step explanation: