Islands

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Also known as the ship rat, the black rat often turned up on ships and became widely distributed around the globe. It has been named as the main cause of decline for many island species due to its generalist nature and omnivorous diet.

Island Facts

  • There are over 175,000 islands on Earth.
  • Islands vary in size from just 0.15 square kilometres up to 2.2 million square kilometres.
  • Madagascar is thought to be the world’s oldest island.
  • Many island species are endemic, occurring nowhere else on Earth.
  • Islands sustain over 50 percent of the world’s marine biodiversity.