Invasive species in Japan
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Invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...
include those introduced from overseas, such as the
red-eared slider The red-eared slider or red-eared terrapin (''Trachemys scripta elegans'') is a subspecies of the pond slider (''Trachemys scripta''), a semiaquatic turtle belonging to the family Emydidae. It is the most popular pet turtle in the United States, ...
, as well as plants or animals introduced outside their native range within Japan (
Siberian chipmunk The Siberian chipmunk (''Eutamias sibiricus''), also called common chipmunk is native to northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan. It was imported from South Korea and introduced in Europe as a pet in th ...
, etc.). This is a non-exhaustive list, largely based on data from the National Institute of Environmental Studies.


Animal species


Mammals

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Bos taurus Cattle (''Bos taurus'') are large, domesticated, cloven-hooved, herbivores. They are a prominent modern member of the subfamily Bovinae and the most widespread species of the genus ''Bos''. Adult females are referred to as cows and adult ma ...
'' (cattle) - Problematic in
Tokara Islands The is an archipelago in the Nansei Islands, and are part of the Satsunan Islands, which is in turn part of the Ryukyu Archipelago. The chain consists of twelve small islands located between Yakushima and Amami-Oshima. The islands have a total ...
br>
* ''
Callosciurus erythraeus Pallas's squirrel (''Callosciurus erythraeus''), also known as the red-bellied tree squirrel, is a species of squirrel native to Greater China, India, and Southeast Asia. Description Pallas's squirrel is a medium-sized tree squirrel, with a ...
'' (Pallas's squirrel) - Invasive in various areas in Japan. * ''
Callosciurus finlaysonii Finlayson's squirrel or the variable squirrel (''Callosciurus finlaysonii'', sometimes misspelled ''C. finlaysoni'') is a species of rodent in the family Sciuridae. It is found in Cambodia, Laos, Myanmar, Thailand, and Vietnam. The species occurs ...
'' (Finlayson's squirrel) - Invasive in Shizuoka prefecture. * '' Canis familiaris'' (dog

* '' Feral goat, Capra aegagrus'' (feral goat

* '' Erinaceus amurensis'' (Amur hedgehog

* ''
Eutamias sibiricus The Siberian chipmunk (''Eutamias sibiricus''), also called common chipmunk is native to northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan. It was imported from South Korea and introduced in Europe as a pet in th ...
'' (Siberian chipmunk) - Native to Hokkaido, invasive in Honshu. * ''
Felis catus The cat (''Felis catus'') is a domestic species of small carnivorous mammal. It is the only domesticated species in the family Felidae and is commonly referred to as the domestic cat or house cat to distinguish it from the wild members of t ...
'' (feral cat

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Macaca cyclopis The Formosan rock macaque (''Macaca cyclopis''), also known as the Formosan rock monkey or Taiwanese macaque, is a macaque endemic to the island of Taiwan, which has also been introduced to Japan. Besides humans, Formosan rock macaques are the on ...
'' (Formosan rock macaque

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Macaca mulatta The rhesus macaque (''Macaca mulatta''), colloquially rhesus monkey, is a species of Old World monkey. There are between six and nine recognised subspecies that are split between two groups, the Chinese-derived and the Indian-derived. Generally b ...
'' (rhesus macaque

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Martes melampus The Japanese marten (''Martes melampus'') is a marten species endemic to Japan. Description It is in length typically, not counting a long tail, and between in weight. Males are generally larger than females. The pelage varies in color from d ...
'' (Japanese marten) Honshu native, invasive in Hokkaido and Sado Islan

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Muntiacus reevesi Reeves's muntjac (''Muntiacus reevesi''; ), also known as the Chinese muntjac, is a muntjac species found widely in southeastern China (from Gansu to Yunnan) and Taiwan. It has also been introduced in Europe, western United States and Japan. It ...
'' (Reeves's muntjac

* ''
Mus musculus Mus or MUS may refer to: Abbreviations * MUS, the NATO country code for Mauritius * MUS, the IATA airport code for Minami Torishima Airport * MUS, abbreviation for the Centre for Modern Urban Studies on Campus The Hague, Leiden University, Neth ...
'' (house mouse) - Nationwide. * '' Mustela itatsi'' (Japanese weasel) Honshu native, invasive in Hokkaid

* ''
Mustela sibirica The Siberian weasel or kolonok (''Mustela sibirica''), is a medium-sized weasel native to Asia, where it is widely distributed and inhabits various forest habitats and open areas. It is therefore listed as Least Concern on the IUCN Red List. Desc ...
'' (Siberian weasel

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Myocastor coypus The nutria (''Myocastor coypus''), also known as the coypu, is a large, herbivorous, semiaquatic rodent. Classified for a long time as the only member of the family Myocastoridae, ''Myocastor'' is now included within Echimyidae, the family of t ...
'' (coypu, nutria) - Western Japan. * ''
Neogale vison The American mink (''Neogale vison'') is a semiaquatic species of mustelid native to North America, though human intervention has expanded its range to many parts of Europe, Asia and South America. Because of range expansion, the American mink i ...
'' (American mink

* '' Nyctereutes procyonoides'' (raccoon dog

* ''
Ondatra zibethicus The muskrat (''Ondatra zibethicus'') is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habitat ...
'' (muskrat) - Tokyo, Chiba and Saitama. * ''
Oryctolagus cuniculus The European rabbit (''Oryctolagus cuniculus'') or coney is a species of rabbit native to the Iberian Peninsula (including Spain, Portugal, and southwestern France), western France, and the northern Atlas Mountains in northwest Africa. It has b ...
'' (European rabbit

* ''
Paguma larvata The masked palm civet (''Paguma larvata''), also called the gem-faced civet, is a palm civet species native to the Indian subcontinent and Southeast Asia. It has been listed as least concern on the IUCN Red List since 2008 as it occurs in many p ...
'' (masked palm civet

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Procyon lotor The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of . ...
'' (raccoon

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Rattus norvegicus ''Rattus'' is a genus of muroid rodents, all typically called rats. However, the term rat can also be applied to rodent species outside of this genus. Species and description The best-known ''Rattus'' species are the black rat (''R. rattus'') ...
'' (brown rat) - Invasive on outlying islands. * ''
Rattus rattus The black rat (''Rattus rattus''), also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus ''Rattus'', in the subfamily Murinae. It likely originated in the Indian subcontinent, but is n ...
'' (black rat) - Invasive in almost all of Japan. * ''
Sus scrofa The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is no ...
'' (wild boar) on Ototojima and
Okinoerabu , also known as Okinoerabu, is one of the Satsunan Islands, classed with the Amami archipelago between Kyūshū and Okinawa. The island, 93.63 km² in area, has a population of approximately 14,000 persons. Administratively it is divided into th ...
islan

*'' Urva auropunctata'' (small Indian mongoose) - Okinawa and Kagoshima.


Reptiles

* '' Anolis carolinensis'' (Carolina anole

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Chelydra serpentina The common snapping turtle (''Chelydra serpentina'') is a species of large freshwater turtle in the family Chelydridae. Its natural range extends from southeastern Canada, southwest to the edge of the Rocky Mountains, as far east as Nova Scotia a ...
'' (common snapping turtle

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Cuora flavomarginata The Chinese box turtle (), also known as the yellow-margined box turtle, or golden-headed turtle, is a species of Asian box turtle. Taxonomically, it is called ''Cuora flavomarginata''. Anatomy ''C. flavomarginata'' has a highly domed shell, th ...
'' (Chinese box turtle

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Gekko hokouensis ''Gekko hokouensis'', also known as the Hokou gecko or Kwangsi gecko,Not to be confused with '' Gekko kwangsiensis'' is a species of gecko. Taxonomy The species was first described by the American herpetologist Clifford H. Pope in 1928 as su ...
'' (Hokou gecko) native to outlying islands, invasive on mainla

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Hemidactylus frenatus The common house gecko (''Hemidactylus frenatus'') is a gecko native to South and Southeast Asia. It is also known as the Asian house gecko, Pacific house gecko, wall gecko, house lizard, tayoto, chipkali or moon lizard. Most geckos are noctur ...
'' (common house gecko

* ''
Lepidodactylus lugubris ''Lepidodactylus lugubris'', known as the mourning gecko or common smooth-scaled gecko, is a species of lizard, a gecko of the family Gekkonidae. Description ''Lepidodactylus lugubris'' measure 8.5-10 cm in length including tail (4-4.4 cm snou ...
'' (mourning gecko

* '' Orthriophis taeniurus'' (beauty rat snake

* ''
Pelodiscus sinensis The Chinese softshell turtle (''Pelodiscus sinensis'') is a species of softshell turtle that is native to China (Inner Mongolia to Guangxi, including Hong Kong) and Taiwan, with records of escapees—some of which have established introduced po ...
'' (Chinese softshell turtle

* '' Red-eared slider, Trachemys scripta elegans'' (red-eared slider

* ''
Protobothrops elegans ''Protobothrops elegans'' is a venomous pitviper species endemic to Japan in the southern Ryukyu Islands. No subspecies are currently recognized. Common names include: elegant pitviper,Gumprecht A, Tillack F, Orlov NL, Captain A, Ryabov S. ...
'' (elegant pitviper

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Protobothrops mucrosquamatus ''Protobothrops mucrosquamatus'' is a venomous pit viper species endemic to Asia. Common names include: brown-spotted pit viper,Gumprecht A, Tillack F, Orlov NL, Captain A, Ryabov S. 2004. ''Asian Pitvipers''. Geitje Books. Berlin. 1st Edition ...
'' (brown spotted pit viper

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Diploderma swinhonis ''Diploderma swinhonis'', also known commonly as the Taiwan japalure, Swinhoe's japalure, Swinhoe's lizard, and Swinhoe's tree lizard (), is a species of lizard in the family Agamidae. The species is native to Taiwan. It is considered an invas ...
'' (tree lizard)


Birds

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Columba livia The rock dove, rock pigeon, or common pigeon ( also ; ''Columba livia'') is a member of the bird family Columbidae (doves and pigeons). In common usage, it is often simply referred to as the "pigeon". The domestic pigeon (''Columba livia domes ...
'' (feral pigeon) * '' Leiothrix lutea'' (red-billed leiothrix

* ''
Pavo cristatus The Indian peafowl (''Pavo cristatus''), also known as the common peafowl, and blue peafowl, is a peafowl species native to the Indian subcontinent. It has been introduced to many other countries. Male peafowl are referred to as peacocks, and ...
'' (Indian peafowl

* ''
Phasianus colchicus The common pheasant (''Phasianus colchicus'') is a bird in the pheasant family (Phasianidae). The genus name comes from Latin ''phasianus'', "pheasant". The species name ''colchicus'' is Latin for "of Colchis" (modern day Georgia), a country on ...
'' (common pheasant

* '' Pycnonotus sinensis'' (light-vented bulbul


Fish

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Acheilognathus cyanostigma The striped bitterling (''Acheilognathus cyanostigma'') is a species of freshwater ray-finned fish in the genus ''Acheilognathus''. It is endemic to Lake Biwa and Lake Yogo in Japan. It typically grows to a length of 6.0 cm. The reproducti ...
'' (striped bitterling

* '' Acheilognathus macropterus'

* ''
Acheilognathus rhombeus ''Acheilognathus rhombeus'' is a temperate freshwater fish belonging to the Acheilognathinae sub-family of the family Cyprinidae. It originates in Japan and the Korean Peninsula. It was originally described as ''Capoeta rhombea'' by Temminck & S ...
'' (kanehira

* '' Acheilognathus typus'' (zenitanago

* '' Channa argus'' (northern snakehead

* ''
Clarias batrachus The walking catfish (''Clarias batrachus'') is a species of freshwater airbreathing catfish native to Southeast Asia. It is named for its ability to "walk" and wiggle across dry land, to find food or suitable environments. While it does not trul ...
'' (walking catfish) * '' Ctenopharyngodon idella'' (grass carp

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Cyprinus carpio The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The ...
'' (common carp

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Gambusia affinis The western Mosquitofish (''Gambusia affinis'') is a North American freshwater fish, also known commonly, if ambiguously, as simply Mosquitofish or by its genus, generic name, ''Gambusia'', or by the common name gambezi. Its sister species, th ...
'' (mosquitofish

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Gambusia holbrooki The eastern mosquitofish (''Gambusia holbrooki'') is a species of freshwater fish, closely related to the western mosquitofish, ''Gambusia affinis''. It is a member of the family Poeciliidae of order Cyprinodontiformes. The eastern mosquitofish ...
'' (eastern mosquitofish

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Ictalurus punctatus The channel catfish (''Ictalurus punctatus'') is North America's most numerous catfish species. It is the official fish of Kansas, Missouri, Iowa, Nebraska, and Tennessee, and is informally referred to as a "channel cat". In the United States, th ...
'' (channel catfish

* ''
Lepomis macrochirus The bluegill (''Lepomis macrochirus''), sometimes referred to as "bream", "brim", "sunny", or "copper nose" as is common in Texas, is a species of North American freshwater fish, native to and commonly found in streams, rivers, lakes, ponds and ...
'' (bluegill

* '' Micropterus dolomieu'' (smallmouth bass

* ''
Micropterus salmoides The largemouth bass (''Micropterus salmoides'') is a carnivorous freshwater gamefish in the Centrarchidae (Centrarchidae, sunfish) family (biology), family, a species of black bass native to the eastern and central United States, southeastern ...
'' (largemouth bass

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Monopterus albus The Asian swamp eel (''Monopterus albus''), also known as rice eel, ricefield eel, or rice paddy eel, is a commercially important, air-breathing species of fish in the family Synbranchidae. It occurs in East and Southeast Asia, where it is a ver ...
'' (Asian swamp eel

* '' rainbow trout, Oncorhynchus mykiss'' (rainbow trout

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Rhodeus ocellatus The rosy bitterling or Tairiku baratanago (''Rhodeus ocellatus'') is a small freshwater fish belonging to the family Cyprinidae (carp), native to East Asia from the Amur River basin to the Pearl River (China), Pearl River basin. Females are abou ...
'' (rosy bitterling

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Salmo trutta The brown trout (''Salmo trutta'') is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes purely freshwater populations, referred to as the riverine ecotype, ''Salmo trutta'' morph ...
'' (brown trout

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Silurus asotus The Amur catfish, or Japanese common catfish, ''Silurus asotus'', is a species of catfish (sheatfish), family Siluridae. It is a large freshwater fish found in continental East Asia and in Japan. It prefers slow-flowing rivers, lakes, and irrigati ...
'' (Amur catfish

* '' Tridentiger brevispinis'' (numachichibu


Invertebrates

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Aculops lycopersici ''Aculops lycopersici'', also known as the tomato russet mite, is a species of mite that belongs to the family Eriophyidae. ''Aculops lycopersici'' is an important pest of tomato plants. It was first described by A. M. Massee in 1937 in Australi ...
'' (tomato russet mite

* ''Agriosphodrus dohrni'

* ''
Ambigolimax valentianus ''Ambigolimax valentianus'' (also known as ''Lehmannia valentiana'') is a species of air-breathing land slug, a terrestrial pulmonate gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of inver ...
'' (threeband gardenslug

* ''
Amphibalanus amphitrite ''Amphibalanus amphitrite'' is a species of acorn barnacle in the Balanidae family. Its common names include the striped barnacle, the purple acorn barnacle and Amphitrite's rock barnacle. It is found in warm and temperate waters worldwide. Desc ...
'' (striped barnacle

* ''
Amphibalanus improvisus ''Amphibalanus improvisus'', the bay barnacle, European acorn barnacle, is a species of acorn barnacle in the family Balanidae. Description ''Amphibalanus improvisus'' has a smooth white or pale grey conical calcareous shell composed of six fu ...
'' (bay barnacle

* ''
Anoplolepis gracilipes ''Anoplolepis'', also known as the "pugnacious ants", is a genus of ants in the subfamily Formicinae and tribe Lasiini. The genus is mainly found in the Afrotropics, with a few native species known from the Malagasy and Oriental regions (and so ...
'' (yellow crazy ant

* ''Aromia bungii'' (red-necked longhorn

* '' Bemisia tabaci'' (silverleaf whitefly

* ''
Blattella germanica The German cockroach (''Blattella germanica''), colloquially known as the croton bug, is a species of small cockroach, typically about long. In color it varies from tan to almost black, and it has two dark, roughly parallel, streaks on the prono ...
'' (German cockroach

* ''
Bombus terrestris ''Bombus terrestris'', the buff-tailed bumblebee or large earth bumblebee, is one of the most numerous bumblebee species in Europe. It is one of the main species used in greenhouse pollination, and so can be found in many countries and areas wher ...
'' (buff-tailed bumblebee

* '' Bugula neritina'' (brown bryozoan

* ''
Bursaphelenchus xylophilus ''Bursaphelenchus xylophilus'', commonly known as pine wood nematode or pine wilt nematode (PWN), is a species of nematode that infects trees in the ''Pinus'' genus of coniferous trees and causes the disease pine wilt.
* '' Cavelerius saccharivorus'' (oriental chinch bug

* ''Chamberlinius hualinensis'

* ''
Coptotermes formosanus The Formosan termite (''Coptotermes formosanus'') is a species of termite local to southern China and introduced to Taiwan (formerly known as Formosa, where it gets its name), Japan, South Africa, Sri Lanka, Hawaii, and the continental United Sta ...
'' (Formosan subterranean termite

* ''
Corbicula fluminea ''Corbicula fluminea'' is a species of freshwater clam native to eastern Asia which has become a successful invasive species throughout North America, South America, and Europe. ''Corbicula fluminea'' is commonly known in the west as the Asian cl ...
'' (Asian clam

* '' Corythucha ciliata'' (sycamore lace bug

* ''Crangonyx floridanus'' (Florida crangonyctid

* ''
Crepidula fornicata ''Crepidula fornicata'' is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails and cup and saucer snails. It has many common names, including common slipper shell, common Atlantic ...
'' (common slipper shell

* ''
Crepidula onyx ''Crepidula onyx'', the onyx slippersnail or onyx slipper snail, is a species of sea snail with gills, a marine gastropod mollusc in the family Calyptraeidae, the slipper snails and cup-and-saucer snails. Shell description The shell of ''Crepidu ...
'' (onyx slippersnail

* ''Cylas formicarius'' (sweet potato weevil

* '' Delta pyriforme'

* '' Drosophila suzukii'' (spotted wing drosophila

* '' Dryocosmus kuriphilus'' (chestnut gall wasp

* ''
Epilachna varivestis The Mexican bean beetle (''Epilachna varivestis'') is a species of Coccinellidae, lady beetle that can be an agricultural pest. It is one of the few North American lady beetles that feed on plants rather than other insects. It is found through ...
'' (Mexican bean beetle

* ''
Euglandina rosea ''Euglandina rosea'', the rosy wolfsnail or cannibal snail, is a species of medium-sized to large predatory air-breathing land snail, a carnivorous terrestrial pulmonate gastropod mollusk in the family Spiraxidae.MolluscaBase eds. (2020). Moll ...
'' (rosy wolfsnail

* ''Euscepes postfasciatus'' (West Indian sweetpotato weevil

* ''
Frankliniella occidentalis The western flower thrips 'Frankliniella occidentalis'' (Pergande)is an invasive pest insect in agriculture. This species of thrips is native to the Southwestern United States but has spread to other continents, including Europe, Australia (w ...
'' (western flower thrips

* ''
Globodera rostochiensis ''Globodera rostochiensis'', commonly known as the golden nematode, golden eelworm or yellow potato cyst nematode, is a plant pathogenic nematode. It is a pest of plants in the family Solanaceae, primarily infesting potatoes and tomatoes, as well ...
'' (golden nematode

* ''Hydroides elegans'

* ''Hylurgus ligniperda'' (red-haired pine bark beetle

* ''
Hypera postica ''Hypera postica'', commonly known as the alfalfa weevil, is a species of beetle in the superfamily Curculionoidea; it can be found in alfalfa fields throughout Europe. Considered a destructive threat to alfalfa production in North America, sev ...
'' (alfalfa weevil

* ''
Hyphantria cunea The fall webworm (''Hyphantria cunea'') is a moth in the family Erebidae known principally for its larval stage, which creates the characteristic webbed nests on the tree limbs of a wide variety of hardwoods in the late summer and fall. It is con ...
'' (fall webworm

* ''
Icerya purchasi ''Icerya purchasi'' ( common name: cottony cushion scale) is a scale insect that feeds on more than 80 families of woody plants, most notably on ''Citrus'' and ''Pittosporum''. Originally described in 1878 from specimens collected in New Zealand ...
'' (cottony cushion scale

* ''
Latrodectus geometricus ''Latrodectus geometricus'', commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus ''Latrodectus''. As such, it is a 'cousi ...
'' (brown widow

* ''
Latrodectus hasseltii The redback spider (''Latrodectus hasselti''), also known as the Australian black widow, is a species of highly venomous spider believed to originate in South Australia or adjacent Western Australian deserts, but now found throughout Australi ...
'' (redback spider

* ''
Limnoperna fortunei ''Limnoperna fortunei'', the golden mussel, is a medium-sized freshwater bivalve mollusc of the family Mytilidae. The native range of the species is China, but it has accidentally been introduced to South America and several Asian countries w ...
'' (golden mussel

* ''
Linepithema humile The Argentine ant (''Linepithema humile''), formerly ''Iridomyrmex humilis'', is an ant native to northern Argentina, Uruguay, Paraguay, Bolivia and southern Brazil. It is an invasive species that has been established in many Mediterranean climat ...
'' (Argentine ant

* ''
Liriomyza sativae ''Liriomyza sativae'', commonly known as the vegetable leaf miner, is a species of insect, a fly in the family Agromyzidae. The larvae of this fly mine the leaves of a range of vegetables and weeds, but seem to favour plants in the families Cucur ...
'' (vegetable leaf miner

* ''Liriomyza trifolii'' (serpentine leafminer

* ''
Lissachatina fulica ''Lissachatina fulica'' is a species of large land snail that belongs in the subfamily Achatininae of the family Achatinidae. It is also known as the Giant African land snail.
* '' Lissorhoptrus oryzophilus'' (rice water weevil

* ''
Monomorium pharaonis The pharaoh ant (''Monomorium pharaonis'') is a small (2 mm) yellow or light brown, almost transparent ant notorious for being a major indoor nuisance pest, especially in hospitals. A cryptogenic species, it has now been introduced to vi ...
'' (pharaoh ant

* ''
Mytilus galloprovincialis The Mediterranean mussel (''Mytilus galloprovincialis'') is a species of bivalve, a marine mollusc in the family Mytilidae. It is an invasive species in many parts of the world, and also an object of aquaculture. Systematics ''Mytilus galloprov ...
'' (Mediterranean mussel

* ''Nassarius sinarus'' (Nassarius snail

* ''Nealsomyia rufella'

* ''Opisthoplatia orientalis'

* ''
Pacifastacus leniusculus The signal crayfish (''Pacifastacus leniusculus'') is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the North European ''Astacus astacus'' fisheries, which were being damaged by crayfish plague, bu ...
'' (signal crayfish

* '' Paraglenea fortunei'

* '' Parasa lepida'' (nettle caterpillar

* ''
Perna viridis ''Perna viridis'', known as the Asian green mussel, is an economically important mussel, a bivalve belonging to the family Mytilidae. It is harvested for food but is also known to harbor toxins and cause damage to submerged structures such as d ...
'' (Asian green mussel

* ''
Pheidole megacephala ''Pheidole megacephala'' is a species of ant in the family Formicidae. It is commonly known as the big-headed ant in the USA and the coastal brown ant in Australia. It is a very successful invasive species and is considered a danger to native ant ...
'' (big-headed ant

* ''
Platydemus manokwari ''Platydemus manokwari'', also known as the New Guinea flatworm, is a species of large predatory land flatworm. Native to New Guinea, it has been accidentally introduced to the soil of many countries, including the United States. It was als ...
'' (New Guinea flatworm

* ''Polyandrocarpa zorritensis'

* ''
Pomacea canaliculata ''Pomacea canaliculata'', commonly known as the golden apple snail or the channeled apple snail, is a species of large freshwater snail with gills and an operculum, an aquatic gastropod mollusc in the family Ampullariidae, the apple snails. S ...
'' (apple snail) * ''
Potamopyrgus antipodarum The New Zealand mud snail (''Potamopyrgus antipodarum'') is a species of very small freshwater snail with a gill and an operculum. This aquatic gastropod mollusk is in the family Tateidae. It is native to New Zealand, where it is found through ...
'' (New Zealand mud snail

* ''
Procambarus clarkii ''Procambarus clarkii'', known variously as the red swamp crayfish, Louisiana crawfish or mudbug, is a species of cambarid crayfish native to freshwater bodies of northern Mexico, and southern and southeastern United States, but also introduc ...
'' (red swamp crawfish

* ''
Pyromaia tuberculata ''Pyromaia tuberculata'' is a species of crab in the family Inachoididae. Taxonomy ''Pyromaia tuberculata'', also known as the fire crab, was first described by Lockington in 1877 off the coast of San Diego, California. The familial classific ...
'' (tuberculate pear crab

* ''
Quadrastichus erythrinae ''Quadrastichus erythrinae'' Kim, 2004, (quadra=four, stichus=line, erythrinae=of erythrina) is a small parasitoid wasp belonging to the family Eulophidae, but also a secondary phytophage by way of inducing galls on the leaves, stems, petioles a ...
'' (Erythrina gall wasp

* ''Rhabdoscelus obscurus'' (sugarcane weevil borer

* ''
Rhynchophorus ferrugineus The palm weevil ''Rhynchophorus ferrugineus'' is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil. The adult beetles are relatively large, ranging between long, and are usually a rusty red co ...
'' (red palm weevil

* ''Solenopsis geminata'' (fire ant

* ''
Thrips palmi ''Thrips palmi'' is an insect from the genus ''Thrips'' in the order Thysanoptera.
'' (melon thrips

* ''
Trialeurodes vaporariorum ''Trialeurodes vaporariorum'', commonly known as the glasshouse whitefly or greenhouse whitefly, is an insect that inhabits the world's temperate regions. Like various other whiteflies, it is a primary insect pest of many fruit, vegetable and or ...
'' (glasshouse whitefly

* ''Unaspis yanonensis'' (arrowhead snow scale

* ''
Vespa velutina The Asian hornet (''Vespa velutina''), also known as the yellow-legged hornet or Asian predatory wasp, is a species of hornet indigenous to Southeast Asia. It is of concern as an invasive species in some other countries. Appearance ''Vespa vel ...
'' (Asian predatory wasp

* ''Xyleborus volvulus'

* ''Xenostrobus securis'' (small brown mussel


Plant species

* ''
Desmodium paniculatum ''Desmodium paniculatum'', the panicled-leaf ticktrefoil, narrow-leaf tick-trefoil or panicled tickclover, is a perennial herb in the pea family, Fabaceae. Belonging to a nearly cosmopolitan genus, the panicled-leaf ticktrefoil is a common nativ ...
''Desmodium paniculatum
National Institute for environmental studies Retrieved July 24, 2017


References

{{Invasive species by country
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
Environmental issues in Japan Fauna of Japan Flora of Japan
Invasive Invasive may refer to: *Invasive (medical) procedure *Invasive species *Invasive observation, especially in reference to surveillance *Invasively progressive spread of disease from one organ in the body to another, especially in reference to cancer ...