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Cause and effect essay invasive species
Cause and effect essay invasive species
Cause and effect essay invasive species
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Invasive Species
The world is under attack; by aliens from our own planet. These aliens are known as invasive species. Government agencies such as the Environmental Protection Agency (EPA) and the Department of Natural Resources (DNR) have identified invasive species as living organisms that are not native to an ecosystem and their introduction can cause harm to the environment, infrastructure, and people. When these creatures are in their natural ecosystem they can be held in check by predators and other organisms that have evolved to deal with them. Without these opponents invasive species can and will cause economic and biological damage to the area they are introduced to. Invasive species can affect anyone and anything and they must be stopped. In order to stop them there must be a strict invasive species management program.
Invasive species are a widespread problem throughout the world. Some of the more famous invasive species in the United States are the Emerald Ash Borer, the Asian Carp, and the Africanized Honey Bee. Invasive species cause extreme amounts of damage to wildlife and the economy. By 2019, it is estimated that the Emerald Ash Borer will have costed the United States $10.7 billion (Kovacs et al, 2010). A textbook example of an invasive species is the brown tree snake on the island of Guam. It has driven ten of the twelve native forest bird species there to extinction. With few predators, they have an estimated population density of over 3,000 snakes per square mile (University of Washington 2008). Like other invasive species the problems the brown tree snake causes do not just stop there. They are often cause for power outages on the island after they slither on to power lines.
Cost
In the United States ...
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...e threat of invasive species without the help of a strict invasive species management program. Invasive species cause great harm to the ecosystem by competing for the same food sources as native species including prey animals. Even invasive plants harm the ecosystem by stopping the growth of native plants. There have been many efforts to stop invasive species from harming the Everglades, such the inclusion of large constrictor snakes in the Lacey Act and the creation of the Python Patrol. Although, these measures are not sufficient because they are reactionary. The most effective way to fight invasive species is to stop them from entering the country to begin with. That way they will never get close to the areas that they could harm. To truly stop invasive species government legislation must reflect this. Invasive species are a threat that can be eliminated.
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.
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.
The invasive species, the Burmese Python has done irreparable damage to the Everglades National Park in Florida. A steady decline in mammals has been observed since the introduction of Burmese pythons occurred. Burmese pythons were first introduced into the United States as part of the pet trade which then led to the escape or intentional release out into the wild. The first notation of these species arriving was in the year 2000. However, within just eleven years this invasive species had done such a large amount of damage to Florida’s Ecosystem that many species had gone almost completely extinct.
There are invaders among us, they are not alien or human, but Burmese Pythons. Arguably one of the most beautiful and unique parts of nature remaining in the United States is rapidly being destroyed by the Burmese Python. It has enormously impacted the Everglades in a negative way. The beautiful indigenous animals have quickly disappeared and new predators surface as we dig deeper into the Everglades. This fierce animal is a constrictor, squeezing the life out of its prey. The Pythons tight grip sucks the life out of its prey and swallows it whole. “It sounded like a joke when news reported Burmese Pythons were invading the Everglades in 2000” states USA Today. Pythons are slithering their way through the Florida Everglades with a big appetite and a similar habitat as their original home in Asia. Now, they have marked their territory permanently and there may be nothing scientists can do in order to prevent this issue.
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.
Should exotic snakes or other large reptiles be allowed as pets in Florida? Right now these escaped/released feral reptiles create an estimated $120 billion in environmental damage each year according to David Steen on Slates Animal Blog.
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.
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.
such changes as well as stop the introduction of exotic plant-life and animals into the Everglades.
(Sept. 23rd, 2011) Exotic Pets Turning Invasive, Threatening Florida. Tech Media. Retrieved March 10, 2014, from http://www.livescience.com/16204-florida-invasive-reptiles-amphibians.html. WYKC Channel 3 News (2014, February 14). Investigator: Exotic Animals Living in NE Ohio Neighbourhood [Video File].
Zipkin, Elise F., Kraft, Clifford E., Cooch, Evan G., and Sullivan, Patrick J., “When Can Efforts to Control Nuisance and Invasive Species Backfire?,” Ecological Applications, Vol. 19, No. 6 (2009): 1585-1595, accessed October 11, 2013. http://www.jstor.org/stable/40346271.
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...