Anna's+work+letter+to+residents

Below is the letter to residents of the area to convince them to protect the wetland ecosystem.

Dear residents of Newells Paddock, My name is Anna Nguyen. I am writing this letter to convince you to protect the local wetland ecosystem so it can survive. I will describe how introduced species have negative effects on wetland ecosystems and ways the residents can reduce the impact on your ecosystem. Introduced species are species living outside its native distributional range, which have arrived there by human activity, either deliberately or accidentally. The two introduced species in Newells Paddock wetland ecosystem are rabbits and cats. The ecosystem in Newells Paddock is the wetland ecosystem. An ecosystem has producers, first, second, third and fourth order consumers. All the organisms’ lives depend on each other. Some animals are predators which eat other animals and some animals are prey eaten by other animals. All animals play a role in the ecosystem and they make a cycle. One kind of animal changes in population size, the entire ecosystem will be affected. For example, if the insect in the ecosystem’s population gets smaller, the food they eat which are plants increases, animals in the second order consumers which eat insects decrease because there is not much food for them. Also, the fourth order consumers also decrease. This example shows how a little change in an ecosystem affects the whole ecosystem which leads to imbalance. The negative effects introduced species bring to the wetland ecosystem are damaged environment and imbalance. Scientifics proved that cats waste contains too many nutrients which damage the plants there. Cats eat the native species and disturb the ecosystem. Rabbit is a species that affects the ecosystem a lot. It eats lots of food which leads to other animals do not have enough food to eat. The problem is there is no species in the ecosystem to eat the rabbit. It reproduces fast which is very destructive.

The introduced species bring negative effects to the wetland ecosystem but there are ways to reduce the negative effects. Three ways the residents can protect the wetland ecosystem are make people ensure introduced species like cats do not eat the native animals. The second ways is reduce the population of the introduced species like rabbits. The third ways is to keep all the introduced species away from the wetland ecosystem so it can be balanced.