NEET BIOLOGY

Detailed explanation-1: -Reaches a climax community quicker because soil is already present when succession begins. Q. Secondary succession occurs where an ecosystem has previously existed.

Detailed explanation-2: -Explanation: Secondary succession usually occurs faster than primary succession because the substrate is already present. In primary succession, there is no soil and it needs to form. This process takes time, as pioneer species must colonize the area, they must die, and as this happens over and over again, soil forms.

Detailed explanation-3: -Eventually, enough soil forms and enough nutrients become available such that a climax community, like a forest, is formed. If the site is disturbed after this point, secondary succession occurs. Secondary succession happens when a climax community or intermediate community is impacted by a disturbance.

Detailed explanation-4: -Secondary succession proceeds faster than primary succession, in part because soil survives the disturbance. As a result, new and surviving vegetation can regrow rapidly. Secondary succession often follows a wildfire, hurricane, or other natural disturbance.

Detailed explanation-5: -The process of primary succession can take hundreds, if not thousands, of years. In contrast, the process of secondary succession can reestablish an ecosystem’s climax communities in as few as 50 years. The ecosystem’s animal populations are also established more quickly during secondary succession.