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The eastern gray squirrel (Sciurus carolinensis), also known, particularly outside of the United States, as simply the grey squirrel, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.
These eastern grey squirrels are considered an invasive species in Europe because of their presence contributing to the displacement of the red squirrels. The invasion of the grey squirrel in the United Kingdom can be classified as a Disease Mediated Invasion (DMI). [ 6 ]
Originally from North America, the larger and more aggressive grey squirrel is classified as an invasive non-native species. ... But grey squirrels were also found in 69% of sites, an increase of ...
A non-native grey squirrel chases a native red squirrel in Betws Garmon, Wales. There are regulations that aim to prevent and minimise the impact of the introduction and spread of Invasive species that are not native to England and Wales.
Laboratory trials have been looking into an oral contraceptive.
Invasive species such as the grey squirrel, European rabbit and Japanese knotweed have cost the UK economy more than £5 billion over the past five decades, according to research.
The grey squirrel is an introduced species in Great Britain, where it threatens the country's native red squirrel population. Islands, such as the British Isles, can be adversely affected by the introduction of non-native species. Often an island will have several distinct species not present on the nearest mainland, and vice versa.
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