The energy source for these organisms first start out with the sun which then is collected by the coconut tree. After this happened, anything that eats or feeds off this tree wound be eating the energy from the tree, so on and so forth.If the number of any of the organisms would fluctuate them it could change the animals around them. For example, if the lichen would die off, then it would not cause much damage to this web because the lichen does not have anything that feeds off it. On the other hand, if the coconut tree would suddenly die off it would cause a retain that would be totally different from the fungi. For one, the lichen would thrive because it feeds off dead thing, but the fruit bat might slowly decrease because it would have one less food source. If there would be a major freeze in this environment, it would cause many animals to die and could cause some of the plants to die off as well. Also if there was a distinction of insects it could make cause the herbivores to loose a major food source which could lead to the distinction of the animal and could cause a decrease of another animal that feeds off of it.
An invasive species could be harmful to this environment because it could take the place of a native species or even increase the downfall of an endangered one.
In the Hawaiian rain forests the tropical ash tree is an invasive species. This particular tree is taller than the native ones, like the ohla tree. This causes the trees and plants below to achieve a lesser amount of sunlight which could alter their growth. In fact the native trees are slowly dyeing out. This tree was put there for lumber and wood products in the 1930's, but has done more harm then good to the native species.
In the Hawaiian rain forests the tropical ash tree is an invasive species. This particular tree is taller than the native ones, like the ohla tree. This causes the trees and plants below to achieve a lesser amount of sunlight which could alter their growth. In fact the native trees are slowly dyeing out. This tree was put there for lumber and wood products in the 1930's, but has done more harm then good to the native species.