(As per sign)
With such dense plant growth in the gullies, it can be difficult for a seedling plant to find room to grow – but Nature provides several mechanisms to ensure that the forest constantly renews itself, in a process called succession. As tall trees age and die, they fall, creating holes in the canopy that allow sunlight to filter to the gully floor. Vines hanging down the gully’s steep cliffs may become too heavy, tearing away their roots to create an open spot for a few plants to grow. And the steep slopes of the fully sides are unstable; soil and rocks may wash down into the gully after a rainfall, leaving a spot for a new plant to take root. Such succession is constantly taking place the young replacing the old.