Samoa is a beautiful country known to all its different nature. For Samoa to biodiversity and action plan for 2001 is between Samoa biodiversity. Richest and most varied in the Polynesian islands contains about 500 vascular plant rooms, of which 30% is nowhere else in the world. There are also 21 species of butterflies, over 20 species of land snails, 14 species of reptiles and 43 species of resident birds, eight of which are found only inSamoa (Samoa Biodiversity and Action Plan 2001).
This shows that Samoa founded numerous different types of animals and plants in their islands, but today the number of these species have declined drastically due to one of the main reasons is the introduction of foreign plants and animals from other countries, either accidentally or intentionally . These organisms are known as invasive species and have become a serious threat to biodiversity Samoa.
What areinvasive species?
Invasive species are not aliens from outer space, but a plant, animal, or viruses that are not originally from Samoa, and often causes beyond the rate of onset of normal diffusion of a threat to agriculture or damage to personal resources. (Dovey 2003) Some examples of this would be the giant African snail, wine meremia, ivy gourd and so on.
The impact of this invasive species on our local environment
Invasive species are recognized as highlyadaptive and fast breeding organisms. They are capable of free diffusion in a given environment, and their ability to grow without control, invasive species have a negative impact on human health and the environment.
Their interference in the environment has led to serious destruction and is a case should be taken seriously in Samoa. Meronem invasive vines such overwhelming vast areas of native forests in Samoa hard many of our native plants on the brink ofEndangered. In addition, invasive strains also lead to reduced production of flowers and fruits too drastic, the species that depend on these crops for food. For example, pigeons and fruit bats.
These effects on the environment "can cause enormous costs to our islands development, food security and livelihoods through the human damage and the destruction of our agriculture, fisheries and forestry" the impact on the people of Samoa through the creation of ( Mark Bonin thesis).In addition, invasive species are also known to be carriers of the disease, so that directly affect people and their health (Dovey 2003)
Solutions
And 'generally accepted that invasive species are established once, are very difficult to remove, so prevention is the first and best line of defense, and also the cheapest. Invasive species are threatened and aggressively implemented many different strategies to control the spread arethese species. A method and is currently the most widely used method today, the quarantine system, which was set up together to prevent invasive species from further spreading in the country is important.
But with the already invasive in our country the best thing to do, its rate of growth of trying different methods of eradication. These can be aerial spraying in some areas, because these chemicals can be made specifically for this type of destructionspecies, weed control, and packaging of fruits of the invasive vine, and so on. Overall, this is an effective method to eliminate the continued breeding of this species. Another possible solution for eradication of invasive organisms is through biological control. Biological control is the natural means of elimination. This process involves the introduction of a different kind of species that feed on this pest and its possible extinction. However, it must take so that the new speciesDo not be another plague in the long run.
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