Please join StudyMode to read the full document. It is a term used in the media, by governments and ecologists, to indicate to the public that a new species has entered an area, and usually very little is said afterwards, however many people do not realise the severity and long term effects of invasive species in their area and worldwide. Unfortunately this attitude is what makes the problem worse. In Canada alone there are hundreds of known invasive species including insects, birds, mammals, reptiles, amphibians, crustaceans, aquatic and terrestrial plants, marine and freshwater fish, algae, fungi, and molluscs. Many species are able to incorporate into the existing environment without harming it; however there has been an increasing number of invasive species that cause uncontrollable damage to local ecosystems.
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The invasive species can be defined as a plant or an animals that has a tendency to dominate and quickly spread in an area where it is not native but is introduced. The invasive species are believed to cause harm to the environment. The study if the invasive species is important since it is a threat to the biodiversity of the United States, and it causes the degradation of the habitats. Some of the invasive species can become a threat to human beings and their health and, therefore, cost the United States Government billions of dollars in controlling them. The global warming has contributed to the impact of the invasive species in the ecosystem and wildlife. In this case, we will study the Lesser celandine that is also known as the fig buttercup.
Giant hogweed Heracleum mantegazzianum photo by Brian Klinkenberg. There is a new challenge to conservation biology in British Columbia, one which goes hand in hand with intensifying efforts to save species at risk and restore natural ecosystems. Invasive non-native plant species also called alien, introduced, or exotic grow quickly and aggressively. These unwelcome plants disrupt the ecology of natural ecosystems by displacing native plants and the animal species that depend upon them, reducing native biodiversity.
Invasive species or invasive exotic are a term or a categorization phrase deployed for flora and fauna. The European Union has also defined the invasive species as species that are outside their natural distribution and threaten biological diversity. This paper focuses on the advantages and disadvantages associated with the invasive species.