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Academic year: 2022

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Korrekturhinweise Invasive species

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Justifications

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The text says: “One of the worst invaders is the harlequin ladybird, a voracious predator that cannibalises other ladybirds and threatens many other insect species.” The harlequin ladybird therefore feeds on its own species.

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The text says: “They suggest that each invasive mammal species should be considered on its merits and not persecuted just for being foreign.” A new approach is therefore to assess each alien species

individually.

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The text says: “There comes a point where a non-native has been exerting its influence on native

biodiversity for so long that a new community has emerged to which the intruder is integral so its removal would no longer rescue or restore the original natural state.” Some alien species are therefore now a natural part of the ecosystem.

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The text says: “The grey squirrel would probably be among the candidates for such a reassessment.

Introduced to Britain in 1828, it has spread across most of the country, […].” The grey squirrel is therefore found throughout Britain.

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The text says: “One such is the brown hare, which was introduced to Britain by the Romans but which is so widely accepted that its recent decline has prompted government to list it as an endangered species.”

The brown hare was therefore brought to Britain a long time ago.

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The text says: “Macdonald points out that although they do damage they also maintain grasslands and provide food for predators.” Rabbits therefore help other animals to survive.

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The text says: “Soon, such ‘ecological citizens’ could be joined by the Chinese water deer, which is facing rapid decline in its home regions in China and Korea. In Britain, its population has surged to several thousand, accounting for 10% of the global population.” The Chinese water deer therefore survives in Britain.

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