Invasive species are not just plants they are also animals, and all together can cause a lot of changes in an environment. The area or ecosystem that they invade will likely see negative impacts upon arrival of the species.

Some negative impacts are:

  • habitat alteration
  • habitat destruction
  • forest destruction
  • killing of native species both plants and animals
  • economic costs
  • reduce biodiversity
  • decreased availability and quality of key natural resources
  • pollution caused by overuse of chemicals to control invasive species

British Columbia states that Invasive species are:Ā plants and animals not nativeĀ toĀ B.C. or are outside their natural distribution area.Ā TheyĀ can spread rapidly, outcompeteĀ and predateĀ on native species, dominateĀ natural and managed areas,Ā and alterĀ biological communities.Ā Invasive species can negatively impact B.C.’sĀ environment, people and economy.

It has been found that invasive species are recognized globally as the second greatest threat to biodiversity. This follows the direct habitat loss due to humans (good job guys).