noun
primary succession
Ecological term for the colonization of barren land by pioneer species, leading to a climax community.
溶岩流のあとには一次遷移が観察される。
Primary succession can be observed after a lava flow.
Secondary succession occurs in areas where soil remains after a disturbance, unlike primary succession which starts on bare substrate.
Compound of 一次 (primary) and 遷移 (transition, succession), a direct translation of the English ecological term.