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Brown Tree Snake ( Boiga irregularis ) PATHWAYS/HISTORY: This species is native to Indo-Pacific islands including New Guinea, the Solomon Islands, northern and eastern Australia and eastern Indonesia. They are well estabished in Guam where they probably arrived via cargo ships during World War II. Brown tree snakes have been reportedly sighted (but not established) in Hawaii, Texas, and Oklahoma. RISKS/IMPACTS: Brown tree snakes can be dispered in cargo on planes and ships. In Guam, this species has devestated native populations of forrest birds and could further jeopardize the dwindling native species in Hawaii if allowed to establish populations on these islands. Tropical areas on the mainland United States, particularly near ports, may also be at risk. MANAGEMENT: Dogs are used to sniff out snakes in outgoing cargo on Guam and in incoming cargo in Hawaii. Removing debris and other daytime refugia may help prevent brown tree snakes from coming in to specific local areas. Traps have been successful at capturing brown tree snakes, but as with most invasive species, erradication of establish populations is unlikely. WHAT YOU CAN DO: Report any sightings to Mr. Jim Stanford, the Brown Treesnake Rapid Response Team Coordinator for the United States Geological Survey. The 24-hr hot line is 671-777-HISS (4477). PROFILE CREDIT: David K. Britton, USFWS - IMAGE CREDIT: North American Brown Tree Snake Control Team |
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