Forests can grow from bare rocks in about 150 years, according to the U.S. Geological Survey. Many scientists study primary succession in Hawaii because the lava flows from volcanoes create places where primary successio... More »

Primary succession occurs in areas where no life has existed, whereas secondary succession happens when a disaster has devastated an area but has left some life in place. Succession begins with the colonization and activ... More »

The four stages of pond succession are pond pioneers, submergent vegetation appearing around the pond, decaying matter raising the pond floor and a marsh being created. Ponds are shallow holes where water collects. They ... More »

Primary succession can occur after geological events, such as a volcano eruption that emits lava flow, or glaciers that recede. In both of these cases, a new land emerges that may contain rocks but is devoid of soil and ... More »

Ecological succession is the process by which the species structure of a given biological community evolves over time. The two types of succession are primary and secondary. More »

A secondary succession is the ecological succession that takes place on the soil in which a primary succession occurred. The secondary succession occurs after an event occurs to remove the previous inhabitants, such as f... More »

According to the National Oceanic and Atmospheric Administration, coral reefs are formed when coral larvae attach themselves to rocks or other hard surfaces found under water along the edges of islands and along coasts. ... More » Science Biology