FOREST ECOLOGY
FOREST SUCCESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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after a forest fire
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with a pioneer species
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if a glacier shrinks
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on a new volcanic island
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Detailed explanation-1: -Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession.
Detailed explanation-2: -A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill those animals unable to flee the area. Their nutrients, however, are returned to the ground in the form of ash.
Detailed explanation-3: -Secondary succession begins after a disturbance, like a fire. Crucially, some soil and nutrients remain present-fire, in fact, may help recycle those nutrients.