Invasion information | ||
Range in Japan | Introduced to Hakodate (Asahikawa, Muroran, Hakodate), Sadogashima Is. (Niigata Pref.), and Izu Islands (Oshima, Niijima, and Miyakejima Is.). |
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Origin | ||
Date | Details unknown. In Izu Islands, this species increase explosively in ca.1980. | |
Route | ||
Impact | Predation on native species. Affected organism: Terrestrial invertebrates (by predation). | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries |
Reference | Notes |
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