the ecological succession of vegetation that occurs in passing from barren earth or water to a climax community.
Appearance of life in an area previously devoid of life. 856
The process of community change on an area which has not been previously occupied by a community (such as a newly-exposed rock or sand surface.).
Ecological succession in a bare area that has never been occupied by a community of organisms. See ecological succession. Compare secondary succession.
Succession on soil or sediments that do not contain an active seed bank.
An ecological succession that begins in an area where no biotic community previously existed.
Primary succession is one of four types of ecological succession of plant life, and occurs in an environment in which new substrate, devoid of vegetation and usually lacking soil, is deposited (for example a lava flow). (The other type of succession, secondary succession, occurs on substrate that previously supported vegetation before a disturbance destroyed the plant life.) In primary succession pioneer plants like mosses and lichen start to "normalize" the habitat, creating conditions nearer the optimum for plant growth; pedogenesis is the most important process.