Thursday, April 21, 2011

Exotic/Invasive Species and Burmese Pythons

            The Ecosystem is very tricky. It all pertains to the environment surrounding us. A person would have to learn the Ecological Literacy to fully be aware of what is going on in the world. An Exotic species is a non-native species, from somewhere else, not part of the local ecosystem. Invasive is a species whose populations are growing out of control, causing harm to humans, animals and crops.
            Exotic and Invasive species come from all type of different things. Sometimes they can come from pet trades. For example, iguanas invading on Boca Grande. Hurricanes can often bring different effects. Each different species has a niche. The role of the native species is jeopardized by non-native species. Everything works together as a whole in a particular ecosystem. Nothing can stand alone. We all need one another. It is a relationship between the environment and the organisms. When new species come in, the ecosystem could change. It causes old species to lose their niche, causing instability.
            The exotic species, which are the non-native, could cause the native species to become extinct, because it is not part of the local ecosystem. The lack of biodiversity, as a result, can create monoculture. The Melaleuca Trees comes from Australia. Allelopathy has a bio chemical that comes out. It kills anything that shades under it. It does not adapt for this area. Developers brought them in to soak up water. Exotics can cause the spread of diseases and blights. The delicate balance of nature is disturbed.
            The Burmese Pythons in Florida came by pet owners and the hurricanes. They are very large in size. The females are over 20 feet long, and the males are over 14 feet long. In 2010, the population was estimated at around 150,000. There are few predators in Florida for this species. (306)

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