Invasion information |
Range in Japan |
Miyagi, Fukushima, Kanto District except for Chiba, Osaka, Hyogo, Tottori, Shimane, Yamaguchi, Kochi, and Kyushu except for Kagoshima. |
|
Origin |
Unknown. |
Date |
Imported since mid-age. The first record of wild population was in 1980s in N Kyushu. The first record in Kanto District was in 1990 at Yamanashi Pref. |
Route |
Deliberate: Escape or release of pet animal. |
Impact |
Potentially: Competition with native birds, possibly for food. In Hawaii, invasion of this species causes decline of native birds. Native organism(s) affected: Native birds. |
Regulation in Japan |
Import, transport and keeping are prohibited by the Invasive Alien Species Act. |
Introduced range in other countries |
Hawaii |