maximus otter
Recovering policeman
- Joined
- Aug 9, 2001
- Messages
- 15,750
...there is a certain sort of person (not all) who uses the "Red squirrels good, grey squirrels bad" position as a sort of sock puppet for their jingoistic/passively racist attitudes.
Grey squirrels are not a native species to the British Isles, they were introduced to the UK in the late nineteenth century and have become the dominant species across England, Wales and much of Scotland displacing the native red squirrel as they spread. They are larger and have a more varied diet than the red squirrel allowing them to outcompete and rapidly spread at the expense of our native species.
https://www.arkwildlife.co.uk/blog/grey-squirrels-good-and-bad/
Since their introduction into Britain between 1876 and the 1920’s, grey squirrels have spread rapidly, gradually displacing the native red squirrel in most of England and Wales, and in central and south-east Scotland.
https://www.forestresearch.gov.uk/research/management-of-grey-squirrels/
The most crucial reason that red and grey squirrels cannot coexist is that grey squirrels carry a virus known as Squirrelpox (SQPV). Grey squirrels who carry the virus show no symptoms, when grey and red squirrels come into contact with each other the virus is easily spread. Although this is just one of several factors, it is estimated that the loss of red squirrels in Britain has happened 20 times faster than it would have done had squirrel pox not been a factor.
Grey squirrels are approximately twice the size of the native red squirrel, and can live in much higher population densities. As a result the grey squirrel has proven to outcompete the red squirrel for habitat and resources resulting in a steady decrease in red squirrel numbers across Britain.
The grey squirrel also has behavioural advantages. The red squirrel, is primarily arboreal and spends only a third of its time on the ground, the grey squirrel on the other hand spends more than three quarters of it’s time on the woodland floor foraging for food. This adaptation means that ahead of the winter, grey squirrels can increase their body weight by as much as 20%, while reds which feed far less efficiently in broadleaved woodland, rarely manage to gain 10%. This inability to gain weight results in many red squirrels not meeting critical mass for survival and breeding.
As a result of the grey squirrel’s behavioural advantages over the native red squirrel which has resulted in such a dramatic decline in red squirrel population numbers across Britain, the grey squirrel has now been listed within an IUCN list of the 100 worst invasive species globally.
https://cornwallredsquirrels.co.uk/red-and-grey
Mikefule said:Strangely, no one gets as emotional against the rabbit...
You've heard about myxomatosis, right?
maximus otter
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