When coral dies, the islands lose a natural protective barrier, allowing large waves to sweep in unobstructed. Collapsing reef ecosystems also cause dramatic declines in populations of the large predatory fish that feed on reef fish. This directly impacts the foundations and food security of these fish-dependent island nations.
族群：統稱為「南島語系民族」（其起源應為 5,000 年前的台灣原住民族），並分為美拉尼西亞、密克羅尼西亞、波利尼西亞 3 大族群。