AP BIOLOGY

Detailed explanation-1: -Ecological succession is the process by which the mix of species and habitat in an area changes over time. Gradually, these communities replace one another until a “climax community”-like a mature forest-is reached, or until a disturbance, like a fire, occurs. Ecological succession is a fundamental concept in ecology.

Detailed explanation-2: -After an environmental disturbance such as a volcanic eruption or forest fire, communities are able to replace lost species through the process of succession. Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient-rich soils.

Detailed explanation-3: -A climax community remains until disrupted by natural disasters or human activities such as fire, flood, volcanic eruption, deforestation and development. Secondary succession occurs after a previously existing ecosystem is disrupted by fire, hurricane, tornado, farming, logging, and other factors.