Invasion information | ||
Range in Japan | Hokkaido and peripheral islands (Rishiri and Rebun Is.), Izu Islands (Toshima, Miyakejima, Hachijojima, and Aogashima Is.), Goto Islands, Tokara Islands, Amami Islands (Kikai, Okinoerabu, Yoronjima Is.), Okinawa Islands (Iejima, Kumejima, Zamami Is.), Daito Islands, Sakishima Islands (Miyako, Irabu, Shimoji, Hateruma Islands), etc. | |
Origin | Japan | |
Date | Hokkaido: 1880s; The first introduction to small islands for biological control of rats is that to Tokara Islands in 1925-27. | |
Route | Deliberate: For rat control (in almost small islands); For fur (in Hokkaido). | |
Impact | Predation on native species and domestic animals. Native organism(s) affected: Small mammals, reptiles (diurnal lizards and snakes), birds, insects, etc. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | None. |
Reference | Notes |
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100 of the Japan's Worst Invasive Alien Species |