Generally, how do forest disturbances, competition, and other changes affect biodiversity? In turn, how does biodiversity affect forest recovery from disturbances and changes?

The affect of biodiversity can happen from any unnatural cause. Things that disturb an ecosystem with no warning will always give an affect on biodiversity. Biodiversity can be harmed by disturbances by killing one species of species, and not the other one. This can hurt the system physically and then the biodiversity can affect the recovery on its speed and how fast things can grow afterwards.