2009/02/01 250. zenbakia

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Withdrawal of cats from the island of Macquari causes ecological damage

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If there were no rabbit, the enclosure would be occupied by the same vegetation throughout the island.

C. Kiefer/Australia Antarctic Division

On the Australian island of Macquari a relief campaign was carried out in 2000. Research by the Australian Antarctic Division has shown that this campaign has caused great damage to local ecology. Since cats were removed from the Antarctic Glacial Ocean Island, the number of rabbits has increased and plants are now being destroyed.

The first cats kept rabbits under control, but they also started eating seabirds from the island and decided to remove them from the island. Now, on this island, a world heritage site, changes in the flora of rabbits can be seen from space.

Rabbits were introduced to the island in 1878 by seal hunters to feed seals. In the 1960s they were controlled with myxomatosis and reduced their population to 10,000 rabbits. However, since cats disappeared the figure has increased to 100,000. As a measure, the Australian government has decided to eliminate rabbits, rats and mice from the island using poisonous hooks.