When the Killing's Done
“Researchers serially suspected DDT, herbicides, habitat loss and disease, but it wasn’t until the early eighties that Julie Savidge, a graduate student doing field work for her Ph.D., focused on a hitherto little-noticed reptile that first appeared on Guam just after World War II. The brown tree snake, native to Australia, Malaysia and New Guinea, was thought to have arrived as a stowaway in a crate of munitions, the engine compartment of a military vehicle or perhaps the wheel well of a Navy transport plane. Its appearance had been duly recorded but very few people came into contact with it. Nonetheless, having eliminated the other possible causes, Savidge decided to plot the snake’s spread from the main port at Apra to the southern, eastern and northern verges of the island, and found that she was able to correlate its expansion with the progressive topographical decline of the island’s avifauna. The mystery had been solved. The problem remained.In fact, when the brown tree snake re...ached the island, it found itself in an ophidian paradise.MoreLess
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