Does the size of invertebrates mean that they are less important in the ecosystem?

            Most invertebrates that we are familiar with are very small. We often associate the smallness of an ant, a caterpillar, or a grass-hopper with insignificance. Therefore, we have no remorse when such small insects die. However, invertebrates play a very important role in the eco-system.

            As invertebrates are generally small, they can hide in places where larger animals cannot catch them. Therefore, their size is an advantage when it comes to protecting themselves. In spite of their small size, these animals play a key role in maintaining the balance of nature.

            Invertebrates play various roles in nature. Those that are herbivores keep plants and trees in check. Some invertebrates are carnivores, eating other invertebrates as well as larger animals, to prevent the overpopulation of some species. Others are parasites, keeping the number of a certain type of plant or animal under control. Perhaps most important of all, some invertebrates eat dead animal and plant matter. This releases important nutrients back into the environment so that other plants and animals can use them again.

            Most invertebrates also provide food for other species of animals, and even for carnivorous plants like the sundew. Therefore, though most invertebrates are small, they are far more important to the ecosystem than all the mammals, birds, reptiles, amphibians and fish put together.

Picture credit: google