Invasive flatworm released in Samoa in 1990s blamed for Pacific snail extinctions
The invasive flatworm Platydemus manokwari, introduced to Samoa in the 1990s as a biological pest control measure, has caused a sharp decline in native tree snail populations across the Pacific Islands. The aggressive predator actively hunts local snail species, pushing several to the brink of extinction. Earlier biological control efforts in the region proved unsuccessful in curbing the damage caused by the species. Federal authorities have now classified multiple affected native snail species as endangered or threatened. In response, strict biosecurity protocols are being enforced to prevent the flatworm from spreading further.
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