Boiga irregularis, Photo: National Park Service
Boiga irregularis (Merrem, 1802)
Type locality: Port Essington, N. T. [Dendrophis (Ahetula) fusca].
Holotype: BMNH 19184.108.40.206.
* Coluber irregularis Merrem in Bechstein, 1802: 239
* Bechstein, J. M. 1802. Herrn de Lacépède's Naturgeschichte der Amphibien oder der eyerlegenden vierfüssigen Thiere und der Schlangen. Eine Fortsetzung von Buffon's Naturgeschichte aus dem Französischen übersetzt und mit Anmerkungen und Zusätzen versehen. Weimar: Industrie Comptoir.
The Brown tree snake (Boiga irregularis) is an arboreal colubrid snake native to eastern and northern coastal Australia, Papua New Guinea, and a large number of islands in northwestern Melanesia.
This snake is infamous for being an invasive species responsible for devastating the majority of the native bird population in Guam.
The Brown tree snake preys upon birds, lizards, bats and small rodents in its native range. It preys on birds and shrews on Guam.
Due to the availability of prey and lack of predators in introduced habitats such as Guam, they have been known to grow to larger sizes than their normal 1 to 2 meters in length. The longest recorded length of this species is one found on Guam measuring three meters.
The reproductive characteristics of the Brown tree snake have not been widely studied. The female is known to produce 4-12 oblong eggs, 42-47 mm long and 18-22 mm wide with a leathery shell. Females may produce up to two clutches per year depending upon seasonal variations in climate and prey abundance. The female deposits the eggs in hollow logs, rock crevices, and other sites where they are likely protected from drying and high temperatures. Populations on Guam may reproduce year round.
Shortly after World War II, and before 1952, the Brown tree snake was accidentally transported from its native range in the South Pacific to Guam, probably as a stowaway in ship cargo. As a result of abundant prey resources on Guam and the absence of natural predators outside of feral pigs and Mangrove monitors, Brown tree snake populations reached unprecedented numbers. Snakes caused the extirpation of most of the native forest vertebrate species; thousands of power outages affecting private, commercial, and military activities; widespread loss of domestic birds and pets; and considerable emotional trauma to residents and visitors alike when snakes invaded human habitats with the potential for envenomation of small children. Since Guam is a major transportation hub in the Pacific, numerous opportunities exist for the Brown tree snakes on Guam to be introduced accidentally to other Pacific islands as passive stowaways in ship and air traffic from Guam. To minimize this threat, trained dogs are used to search, locate, and remove brown tree snakes prior to the departures of outbound military and commercial cargo and transportation vessels from the island.  Numerous sightings of this species have been reported on other islands including Wake Island, Tinian, Rota, Okinawa, Diego Garcia, Hawaii, and even Texas in the continental United States. An incipient population is probably established on Saipan. Paracetamol has been used to help eradicate the snake on Guam. 
1. ^ Invasive Species: Animals - Brown Tree Snake, National Agricultural Library, United States Department of Agriculture, Retrieved 2010-08-31
Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License