The plants and animals that have been introduced into Australia have caused major problems in the ecosystem. Among these are rabbits, feral pigs, cane toads, European carp, camels, snails, starlings, Paterson's curse, thistle, foxes and cats.
They may be as damaging to native species and ecosystems on a global scale as the loss and degradation of habitats. Hundreds of extinctions have been caused by invasive alien species. The ecological cost is the irretrievable loss of native species and ecosystems. Examples of introduced species. The plants and animals that have been introduced into Australia have caused major problems in the ecosystem. Among these are rabbits, feral pigs, cane toads, European carp, camels, snails, starlings, Paterson's curse, thistle, foxes and cats. Lesson Summary. Introduced species are those that have been moved by humans to an environment where they didn't occur naturally. Species have been introduced accidentally through travel or by humans for conservation efforts, population control, or boosting of agriculture. A Look at Introduced Species. Introduced species, also called alien species, are those that have been moved by humans to an environment where they didn't occur naturally. The term can refer to animals, plants, fungi, or microorganisms that are non-native to an area. Species introduction can be accidental or intentional. Some factors include: small populations; predation by introduced species; competition with other organisms; the destruction of their habitats by other animals or humans; being hunted for their skin, fur, feathers or other body parts and living in specialised habitats and relying on particular foods. Introduced species. An introduced species (or exotic species) is an organism that has been introduced into an ecosystem where it does not occur naturally. The introduced species competes with the other organisms for food and they unbalance the food web of an ecosystem. Rabbits were introduced to Australia by the First Fleet and the first feral populations were established in Tasmania by 1827. Introduced species may also compete with native species for resources, causing populations of the native species to decline. For example, zebra mussels in the Great Lakes crowd out native mussel species as well as other organisms that filter algae from the water.
http://wwf.panda.org/about_our_earth/species/problems/invasive_species/ http://www.skwirk.com/p-c_s-4_u-200_t-561_c-2093/nsw/science/ecology/civilisation-and-the-ecosystem/introduced-species-and-endangered-species- http://study.com/academy/lesson/what-is-an-introduced-species-definition-effects-examples.html http://study.com/academy/lesson/what-is-an-introduced-species-definition-effects-examples.html http://www.skwirk.com/p-c_s-4_u-200_t-561_c-2093/nsw/science/ecology/civilisation-and-the-ecosystem/introduced-species-and-endangered-species- http://www.skwirk.com/p-c_s-4_u-200_t-561_c-2093/nsw/science/ecology/civilisation-and-the-ecosystem/introduced-species-and-endangered-species- http://www.environment.nsw.gov.au/pestsweeds/RabbitFactsheet.htm http://www.brighthub.com/environment/science-environmental/articles/11214.aspx
what problems are faced with introduction of new species in australia