Some species

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

are causing problems in other countries, similar to the way

introduced species An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there ...

in New Zealand cause problems for agriculture and indigenous biodiversity.

Animals

*The New Zealand mud snail (''Potamopyrgus antipodarum'') is an invasive species in many countries and has been present in Europe since 1859.Čejka T., Dvořák L. & Košel V. 2008
Present distribution of ''Potamopyrgus antipodarum'' (Gray, 1843) (Mollusca: Gastropoda) in the Slovak Republic
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Malacologica Bohemoslovaca ''Malacologica Bohemoslovaca'' is a peer-reviewed open access scientific journal covering all aspects of malacology. It was published by the Slovak Academy of Sciences since 2005. It is published by the Department of Botany and Zoology, Faculty of ...

, 7: 21-25. Online serial at 25-February-2008. *The

New Zealand flatworm The New Zealand flatworm (''Arthurdendyus triangulatus'') is a large land flatworm native to New Zealand. It can vary from 5 mm in length when hatched to approximately in mature adults. The New Zealand flatworm is considered an invasive s ...

(''Arthurdendyus triangulatus'') is an invasive species in Europe where it preys on earthworms and degrades soil quality.

Plants

* Taupata (''

Coprosma repens ''Coprosma repens'' is a species of flowering shrub or small tree of the genus ''Coprosma'', in the family Rubiaceae, native to New Zealand. Common names include taupata, tree bedstraw, mirror bush, looking-glass bush, New Zealand laurel and sh ...

''), also known as mirror bush, looking-glass bush, New Zealand laurel or shiny leaf, is a weed in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Norfolk Island Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

and the U.S. (

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

and

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...

). *Pohutukawa ('' Metrosideros excelsa''), sometimes called the New Zealand Christmas tree, is an invasive species in South Africa. *The biddy biddy (''

Acaena novae-zelandiae ''Acaena novae-zelandiae'', commonly known as red bidibid, bidgee widgee, buzzy and piri-piri bur, is a small herbaceous, prostrate perennial, native to New Zealand, Australia and New Guinea, of the family Rosaceae. Description ''Acaena nov ...

'') is declared a

noxious weed A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is injurious to agricultural or horticultural crops, natural habitats or ecosystems, or humans or liv ...

in the American states of Hawaii, California and Oregon. It is also a problem plant in

Northumberland Northumberland () is a county in Northern England, one of two counties in England which border with Scotland. Notable landmarks in the county include Alnwick Castle, Bamburgh Castle, Hadrian's Wall and Hexham Abbey. It is bordered by land on ...

. *New Zealand flax or harekeke ('' Phormium tenax'') is an invasive species in St Helena, some Pacific islands and in Australia. *Pohuehue (''

Muehlenbeckia complexa ''Muehlenbeckia complexa'', commonly known as ''pohuehue'' ( mi, pōhuehue), although this name also applies to some other climbers such as ''Muehlenbeckia australis''. Description ''Muehlenbeckia complexa'' is one of 50 species of shrubs, that ...

''), also called wire vine, mattress vine and several other common names, is naturalised in Western Australia. Although it is a valued garden plant, it can become a pest in suitable climates (e.g. San Francisco's Golden Gate National Recreation Area) if not contained. *Manuka ('' Leptospermum scoparium'') and kanuka ('' Kunzea ericoides'') were planted in Hawaii during the early 20th century and have infested several islands. *Ngaio (''

Myoporum laetum ''Myoporum laetum'', commonly known as ngaio or mousehole tree is a plant in the family Scrophulariaceae endemic to New Zealand, including the Chatham Islands. It is a fast growing shrub, readily distinguished from others in the genus by the tra ...

'') forms dense thickets in coastal areas of Southern California and Mexico and is therefore a serious weed.

References

{{invasive species by country Biota of New Zealand Invasive species

Animals

Plants

See also

References