Invasion information |
Range in Japan |
Not established in Japan |
|
Origin |
Unintroduced to Japan. |
Date |
Introduction to Guam was 1940s or 1950s. |
Route |
Accidental: Hitchhiking on some transports |
Impact |
Potentially: Predation on native small animals. Competition with native snakes. In Guam, extinction of several birds and change of lizard community occurred by the brown tree snake. Native organism(s) affected: Birds, reptiles, (predation), native snakes (competition) |
Regulation in Japan |
Import, transport and keeping are prohibited in Japan by the Invasive Alien Species Act. |
Introduced range in other countries |
Established on Guam. In Japan, this species have been recorded in Okinawa. In addition, there have been many records worldwide (including many small islands). |