Invasion information | ||
Range in Japan | Breedings were recorded in Ibaraki, Tokyo, Kanagawa, Yamanashi, Shizuoka, Aichi, Wakayama, Osaka, Nara, Hyogo, Mie, Fukuoka, Kumamoto, Oita, and Miyazaki Prefs. In addition, distribution records were in Yamagata, Tochigi, Gumma, Saitama, Nagano, Giu, Fukui Prefs., and entire Kinki, Chugoku, Shikoku, and Kyushu Districts. | |
Origin | Unknown. | |
Date | The first record of establishment was in 1931, Mt. Futatabi, Hyogo Pref. This species have occurred in early 1980s or later, n the other region, . | |
Route | Deliberate: Release of pet animal. | |
Impact | Competition with native birds. Recent population expansion can large impact on native species. Reduction of native birds Hawaii may partially due to introduced of this species in 1910s to 1920s. Native organism(s) affected: Native birds such as Zosterops japonicus, Erithacus akahige, Luscinia cyane, Cettia diphone, etc. | |
Regulation in Japan | Import, transport and keeping are prohibited by the Invasive Alien Species Act. | |
Introduced range in other countries | Hawaii, Hong Kong |
Reference | Notes |
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