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2019-02-06T15:00:00.0000000Z
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How a wasp might save the Christmas Island red crabs
by Donna Hutchinson

By Stephanie Dittrich. Reblogged from Island Conservation.

Invasive crazy ants threaten Christmas Island Red Crab populations, but a certain species of wasp might be able to help.

Christmas Island, a remote Australian territory in the Indian Ocean, is known for an abundance of Red Crabs, a species once recorded in numbers nearing 44 million. The Red Crab has captured the hearts of naturalists and nature novices alike, due to the beauty and magnificence of their yearly mass migration from land to sea to lay their eggs in the ocean. However, in recent years, they have suffered a tremendous decline of roughly 40 million, according to recent population surveys. The cause? Invasive crazy ants, which are believed to have been introduced by a ship sometime during the early 20th century.

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Biocontrol
Christmas_Islands
Crabs

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