They also grow faster and withstand disease better than natives. One million acres of Kudzu were planted in the s and s by the Soil Conservation Service to reduce soil erosion on deforested lands. In areas where a native has become extinct or reached a Invasive plants essay that it cannot be restored, non-native species can fill their role.
Also, non-native species can function as biocontrol agents to limit the effects of invasive species. In the mids, the introduction of the European green crab, found to prey preferentially on the native clams, resulted in a decline of the native clams and an increase of the introduced clam populations.
Many weed species are accidental introductions that accompany seeds and imported plant material. Because of the impacts of this disease on citrus crops, citrus is under quarantine and highly regulated in areas where ACP has been found. When non-native species from other ecosystems are introduced, they can upset that balance and bring harm to the established plants and animals, and the whole ecosystem.
The last benefit of non-native species is that they provided ecosystem services. Since the s, large scale efforts have been underway to reduce invasive species; partial success has led to re-establishment of many species that had dwindled or left the region.
When alien species enter into an ecosystem, they can disrupt the natural balance, reduce biodiversity, degrade habitats, alter native genetic diversity, and further jeopardize endangered plants and animals.
Rapid adaptive evolution in these species leads to offspring that have higher fitness and are better suited for their environment. However, in the Great Lakes Region, this co-evolutionary link is non existent, so the sea lamprey acts as a predator, and can consume up to 40 pounds of fish in its month feeding period.
Ballast water taken up at sea and released in port by transoceanic vessels is the largest vector for non-native aquatic species invasions. Non-native species come from somewhere else and they are not natural to the ecosystem they have been introduced to.
Biologists are currently considering releasing this mollusk in the Chesapeake Bay to help restore oyster stocks and remove pollution. Much more needs to be done to protect our planets and its biodiversity from the invasion of alien species.
Many invasive species, once they are dominant in the area, are essential to the ecosystem of that area. Some native animals cannot leave. Diseases may also be vectored by invasive insects such as the Asian citrus psyllid and the bacterial disease citrus greening.
Ecosystems thrive because of biodiversity and some need non-native species in order to succeed. Japanese honeysuckle is an aggressive vine that smothers, shades and girdles other competing vegetation.
The ability to accomplish this as quickly as possible will lead to a population with a very high fitness. A non-native species could be something that brings disease to an area or to people through introduced bacteria or viruses, or possibly a plant that would crossbreed with other plants and cause major changes to plant life and the organisms that feed on them.
Invasive exotic diseases[ edit ] History is rife with the spread of exotic diseases, such as the introduction of smallpox into the indigenous peoples of the Americas by the Spanish, where it obliterated entire populations of indigenous civilizations before they were ever even seen by Europeans.
Europe and temperate Asia Photo by John D. The undercarriage of the vehicle becomes a prime vessel of transport. In response, Invasivorism is a movement that explores the idea of eating invasive species in order to control, reduce, or eliminate their populations. Genetic pollution Native species can be threatened with extinction  through the process of genetic pollution.
Biodiversity Biotic invasion is considered one of the five top drivers for global biodiversity loss and is increasing because of tourism and globalization. If the species has adapted to a similar ecosystem or contains traits that happen to be well suited to the area that it is introduced, it is more likely to fare better in the new environment.A Field Guide for the Identification of Invasive Plants in Southern Forests.
Update of Jim Miller's book now providing information on accurate identification of 56 plants that are aggressively invading forests of the 13 Southern States at alarming rates. An invasive species is a species that is not native to a specific location (an introduced species), and that has a tendency to spread to a degree believed to cause.
An Essay on Some Topics Concerning Invasive Species JAMES H. BROWN 1 * AND DOV F. SAX 2 1 view of alien plants and animals. There is a tendency to treat foreigners differently from natives: with distrust, AN ESSAY ON INVASIVE SPECIES Invasive plants are introduced multicellular organisms of the kingdom Plantae, which produce their food by photosynthesis.
Examples of invasive plants include mosses, herbs, shrubs, flowering plants, trees, vines, etc. What is an Invasive Species? An invasive plant has the ability to thrive and spread aggressively outside its native range. A. Research on the impacts of invasive alien plants (IAP) on biodiversity, ecosystem services and processes have been well documented in the literature.
Furthermore, the primary focus of this research was the negative impacts associated with IAPs when there are some benefits associated with these plants. Non-Native Invasive Plants Essay the topic of non-native invasive plants.
When a plant is non-native, or exotic, it means that it is not originally from the United States.Download