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Impact of invasive species on ecosystems research paper
Invasive species impact essay
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Over the years, problems arise that are threatening to us and the environment we live around us. Some problems are more serious and threatening than others. Other problems are easier to deal with and are fixed can be easy with easy solutions. One serious problem that has been an issue for many years is invasive species. Invasive species are defined legally in the United States as “an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health” (Mcginley 5). Invasive species are a problem being faced across the globe and if nothing is done to stop them, they will have a devastating impact on humanity. Invasive species are defined legally in the United States as “an alien species whose …show more content…
The president, in 1999, issued an executive order on invasive species. The order called for a policy to stop and prevent invasive species from spreading and causing further harm. The policy was known as the National Environmental Policy Act. This first step in this act is prevention. Often, the most cost effective approach to stopping invasive species is to keep them from becoming established in the first place. The Second step is early detection and fast response. We cannot prevent all introductions, however, early detection of introductions and quick, coordinated response can contain invasive species at a lower cost than long-term control, which can get pretty expensive. Invasive species should be detected and dealt with before they become established and spread. An approach involving research and development, technical assistance, and operations is needed to put this act into effective action. No national system is in place for detecting and responding to invasions. Unfortunately, not good planning planning, jurisdictional issues, insufficient resources and authorities, limited technology, and other factors often slow down early detection and rapid response in many locations. The third step is control and management. When invasive species appear to be permanently established, the most effective action may be to prevent their spread or lessen their impacts through control measures. Control and management of invasive species such as eradication within an area, population suppression, and limiting spread. Integrated pest management (IPM) is an approach to pest control (including invasive species) that flexibly considers available information, technology, methods, and environmental effects. Methods include physical restraints (e.g., fences and electric dispersal barriers), mechanical removal (e.g., hand-pulling, burning and mowing), use of pesticides, release of biological control agents (such as
Invasive species as a whole have become a nuisance to many habitats and ecosystems around the world. What defines an invasive species is the following. It must be a species that is foreign to the habitat it resides in, have no natural predators which allow it to reproduce in such a rapid manner, and out compete native animals of food and shelter (Rosenthal 2011). These characteristics are what create such high populations of these invasive species in various habitats around the globe.
Unable to handle their giant snakes, and unable to find new homes for them, some owners illegally release them into the wild. They are also an invasive species, which means that they are not constrained by natural factors as much as they were in their native habitat. Invasive species have the potential to harm their new environments. The release of Burmese pythons in South Florida is especially troublesome because the subtropical climate and the vast undisturbed habitats of the Everglades enable the species to thrive.
The piece I chose to do my literary analysis on was the article, The Truth About Invasive Species, written by Alan Burdick. The article states that invasive species are all around us, but the area with the most prominent amount is the suburbs of Miami. It goes into detail about how abundant invasive species are in this area. Most people who would see a strange animal in their lawn or area would be bemused, however for the people of Southern Florida, this is a recurring scene. Burdick states that “virtually everyone in the South Florida, including Hardwick, has a neighbor with a backyard menagerie of lucrative critters on hold for resale”. Burdick describes both how an invasive species is introduced into an ecosystem, and the impact the have on other species upon their arrival.
Invasive species are non-native organisms that occupy habitats and disrupt the natural ecological cycles of the habitat. They threaten the biodiversity of an ecosystem and are biological pollutants Invasive species introduced into new habitats usually maximize their reproduction in their new home and crowd out native species. Their lack of natural predators in their new community allow for a proliferation in growth and expansion as a result of their abundant food supply. Once they are established, invasive species can rarely be eliminated because their new habitat is favorable for their survival.
Invasive species do not only affect other species in their ecosystem, but also cost the United States more than one hundred and twenty million dollars each year in damages (“Cost” par. 2). Invasive species come in all different forms, and all have a negative impact on the environment. These species can come into a new area without being detected at first, but as time goes on their effects can soon be seen. Efforts are being made to prevent these invasive species from destroying fish population and habitat, but in order to be successful they need to be done on a much larger scale. In order to protect Wisconsin's waters, which are already infected with many invasive species that cause great damage to our bodies of water, more actions need to be taken. It is vital to remove all invasive species from Wisconsin’s waters because it will improve fish habitat, native fish population, and water quality.
Nonnative species can also be called alien, exotic, or nonindigenous. Their presence is due to humans dispersing them to other locations beside their native habitat, or by humans creating environmental conditions that allow their growth. When nonnative species begin to take over a new habitat and displace native species, they are then termed an invasive species. Nonnative invasive species are one of the biggest threats to ecosystems in North America (Cox, 1999) because they are able to have an impact on many levels, including ecosystems, communities, and populations (Cushman, Tierney, & Hinds, 2004).
Invasive species are organisms that harm a new environment that they are not native to. Many invasive species like Eurasian milfoil are easily able to reproduce and can do so fast. Due to this, the limited space in a body of water or area of land is quickly taken over by the invasive species so other native plants face the risk of death or even extinction. Overall, these invasive species can do great harm to an ecosystem or an economy, causing problems that are destructive to numerous organisms.
An invasive species is an organism that is not native to an area and has negative effects on the environment they are in, and the burmese python is just that. The burmese python is one of the five largest snakes in the world. It is native to South and Southeast Asia but found it’s way into the Everglades of Florida, where it causes many issues and threatens the entire ecosystem. The snake can grow up to twenty three feet in length and weigh up to two hundred pounds. These massive creatures made their way into the Everglades as pets that were released into the wild by their owners, most likely due to the fact that they grew to such an enormous size in such a short amount of time and the owners were not ready for it (Betteley).
Did you know that you happen to be surrounded by invasive species? These species are animals that come into areas they do not belong in. The articles, “Invaders among Us,” and “Invader Alert,” show this. They harm the environment, cost tons of money in damage and extermination, and they have to be prevented.
Global change is taking place every day; therefore, it is important to understand how human activities and behavior alters the biodiversity and functions of ecosystems. Alien species is a stimulator of major changes in ecosystems (Vila et al. 2011). An invasive species, is a non-native plant, animal, or fungus that moves to a new ecosystem in a foreign environment. Invasive ecology explores how the invasive species affect the economic, environmental, and human health on the new environment. For example, invasive ecology studies how an invasive species tends to crowd out and sometimes replace a native species (Richardson and Pysek 2008).
All discussions regarding the phenomenon of invasive species will inherently result in the consensus that they are an unwanted or an even evil entity. Ever since the age of exploration humans have been primary dispersers of these so called “exotic” species (Mooney and Cleland 2001). Famous examples include the release of cane toads in Australia (Urban et al., 2008); the rainbow trout (Fausch 2008) and the Japanese Kudzu vine in the southern U.S. (Blaustein 2001) and zebra mussels in the great lakes of Canada (Nalepa and Schloesser 1992). However, documented marine invasions compared with
When people think of invasive species, they normally do not think of the human species, but why not? There is a large debate about whether or not humans are an invasive species. Before people debate whether or not the human race is an invasive species, they should know the definition of one. The legal definition of an invasive species in the United States is “an alien species whose introduction does or is likely to cause economic or environmental harm or harm to human health” (Zielinski). The International Union for Conservation of Nature, IUCN, defines an invasive species as “animals, plants or other organisms introduced by man into places outside their natural range of distribution, where they become established and disperse, generating a negative impact on the local ecosystem and species” (Zielinski).
Invasive species only started to show up in the United States when the Europeans started to arrive. Beforehand, very limited contact was made in this particular region of the world, so very few invasive species came into North America. When the Europeans arrived in 1492, after Columbus discovered North America, they brought their own culture and essential food and animals with them. At first, it was just the basics of maize, wheat, pumpkins, and squash, but later on it also included cows, chickens, and horses . As more Europeans flocked into the country, non-native species began to appear in the area. Often, as non-native species appeared it led to unintended consequences of destroying gra...
Invasive species, (also known as invasive alien species or simply alien species) are defined as any organism (plant, animal, pathogen, or other living thing) that is alien (non-native) to an ecosystem, which can cause adverse economical, ecological, or health effects to native species and/or humans. The roots of these problems all stem from the massive negative ecological impact these organisms are having on the environment (CBD, 2009). For all animal extinctions where the cause is known since the 1600’s, invasive alien species have been a contributing factor 40% of the time (CBD, 2006); the second most contributing factor to extinctions after loss of habitat (GC, 2013). By eliminating native species through competition for resources, predation, and transmittal of disease, invasive species continue to reduce biodiversity in almost all ecosystems around the world (CBD, 2009). In the future, this problem may worsen, and if no action is taken, could lead to a cascading ecological problem so large that whole communities or even ecosystems could collapse.
One of the big causes of extinction or the endangerment of species is foreign species entering a habitat. This species that are not native to the land can disrupt the food web in that community. These species take control of the food web and endanger some of the other species. The native species become endangered and over the course of many years they either adapt to their new way or life, the foreign predator leaves or is killed off due to the different environment, or the species is killed off and becomes extinct. Organizations like the “World Wild Li...