Downside To Diversity: How Grey Squirrels Invade So Easily

The first genotyping of grey squirrels shows a direct link between their genetic diversity and their ability to invade new environments. Grey squirrels are an invasive species introduced from North America. While they are common throughout most of the UK and Ireland, on mainland Europe they are currently only found in Italy, where they mostly exist in discrete, but slowly expanding, populations. read more

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