Introduced species

The nonnative foxes adapted to their environment and began to devour native species. They found tiny, flightless Little penguins, the smallest of the penguin species, easy prey. On the Australian mainland, once large, raucous colonies of Little penguins fell silent, as foxes (along with feral cats and wild dogs) took their toll. Which is why most of Australia's remaining penguin colonies occupy craggy, hard to reach beachheads and the shorelines of nearby islands. According to research studies, the introduction of exotic species to islands has led to the extinction of native species worldwide. Predation along with contributing factors, such as habitat loss, has resulted in the extinction of 80 percent of all land-based species. In Australia, for example, 24 species of bird, 4 frogs and 27 mammals are believed to have gone extinct since European settlement. Waramwbool, located 300 kilometers southwest of Victoria, was not immune to this phenomenon. By the 1990s, the foxes had followed the penguins to Middle Island. When sediment carried by high tides had created a land bridge that enabled foxes to cross from the Australian mainland to the island at low tide…

wild pigs are invasive animals that were introduced to North and South America. The feral hogs were brought to North America primarily by the colonies during their trade from Europe. They were first introduced to the southern part of the United States by the Spanish colonies. However, the feral hogs’ population got out of control and escaped to the eastern part of the US, which led to an increase of their numbers. The population of feral hogs kept increasing, and what helped their massive…

Haida Gwaii is often referred to as the “The Canadian Galapagos” with over 6800 species of flora and fauna and presence of more unique subspecies than any other areas in Canada of equal size (Gaston, Golumbia, Martin & Sharpe, 2008). Haida Gwaii is located 80 km west of the mainland of British Columbia and is the largest and most isolated archipelago located on the west coast of Canada (Stockton, Allombert, Gaston & Martin, 2005). As the archipelago is within close proximity of the Pacific…

Nowadays, urban growth has become a big treat to the environment. The transportation and the construction of facilities have introduced different kinds of invasive species in Seattle. Moreover, the illegal waste dumping and lack of maintenance also help spreading the invasive species. The common invasive species in Seattle are English Ivy, Himalaya Blackberry, American Bull Frog and fox squirrel, etc. The invasive species usually compete and edge out the native species. After a period of time, a…

Animals have been introduced to habitats unintentionally for years. Hogs and wild pigs were introduced to woodlands and wetlands a long time ago. Although they were introduced a long time ago, they still cause problems to the natural habitat. People need to learn how to deal with hogs and pigs to reduce damage that they can cause. Hogs are nuisances to the habitats that they have invaded. Limiting the hog population is important in protecting the wetlands and woodlands. Hogs are an…

Exclusion fences involves erecting a fence around an area of the environment that needs protecting from invasive species. In 2002 Parks Victoria assembled fences around two threatened sub-alpine bogs. Although these fences have been damaged by park visitors and feral horses, evidence indicates that these fences work successfully as they prevent feral horses and cattle from entering the area when fences are in good condition. However, feral horses have been known to enter these areas when the…

In addition, if a supposed “pet” were to get loose, it would endanger the local and surrounding communities. To follow, The owners of foreign species deliberately abandon them.(Crist 231). In fact, if an owner were to become frustrated with maintaining the animal’s well being, they would release them into the wild instead of surrendering them to the authorities. Finally, Zoos do not want to take in these exotic animals due to their already established family structures.__( “Should Exotic…

New World was on a steady downfall, with crops failing, and sickness all over. The blame for this was placed on a native alien species, in which a war soon ensued due to that blame. Soon after this war, Mayor Prentiss of Prentisstown began his plot to enslave all of new world, and it all started with his totalitarian reign over Prentisstown. Manipulating the men of the town to be in his army, Mayor Prentiss soon carved a path of chaos and war to Haven, the capital of New World, and captured it.…

The Invasive Species There is an invasive species amongst us and it's destroying our world. It doesn't seem to stop at anything and is professedly unaware of its destructive habits upon the earth and nature. It plows through our forests, desecrating our ancient trees in it’s path while strangling itself in the process. It sucks up our water sources so fast that they cannot replenish naturally, and yet it cannot quench its thirst for more. It scours the world's worth of crops but leaves the…

Define introduced species. This is what you would call an invasive animal or species that have infiltrated a different ecosystem than their own. The animals can accidentally or intentionally enter a dissimilar ecosystem. 2. In this Virtual Lab, one of the introduced species did not become a problem to the area. Identify that species and explain why it did not pose a threat to the ecosystem. The experiment with the Tulips and the Vole is the situation that resulted in a non-threating…