DENDROLOGY

Detailed explanation-1: -This is known as secondary ecological succession. Small plants emerge first, followed by larger plants. The tall trees block the sunlight and change the structure of the organisms below the canopy. Finally, the climax community arrives.

Detailed explanation-2: -Secondary succession, defined as following disturbances on already developed soils or previously vegetated substrates, may be considered at plant-demographic timescales, involving a few years, decades, or hundreds of years, if based on the life cycles of certain long-lived tree species.

Detailed explanation-3: -Causes of succession Initiating causes-These include biotic and climatic factors which destroy the existing populations of the area. Climatic factors include wind, fire, natural disasters, erosion etc. The biotic factors include activities of other organisms.