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Squirrelpox virus (SQPV) is a virus that causes the fatal disease squirrelpox in United Kingdom and Republic of Ireland red squirrels. The virus is often carried by grey squirrels from North America, [2] which rarely die from the disease. Elsewhere in the Red Squirrel's European range, either the grey squirrel does not occur or it lacks the ...
In addition to competition for resources, the spread of the squirrelpox virus from grey squirrels to reds is thought to be a major factor in the decline of red squirrel populations. [6] Grey squirrels do not die from the squirrelpox virus and can infect red squirrels causing the appearance of scabs and lesions on the face, feet, and genitals ...
It should not be confused with 'urban areas' or 'built-up areas' that are more rigorously defined by the Office for National Statistics – or even city status. Historically, the boundaries of cities within England and the United Kingdom as a whole have remained largely undefined, [citation needed] leading to difficulties in comparisons between ...
This is a list of lists on the cities of present-day nations, states and dependencies. Countries are listed in bold under their respective pages, whereas territories and dependencies are not. Disputed and unrecognized countries are italicized.
The earliest cities (Latin: civitas) in Britain were the fortified settlements organised by the Romans as capitals of the Celtic tribes under Roman rule.The British clerics of the early Middle Ages later preserved a traditional list of the "28 Cities" (Old Welsh: cair) which was mentioned in De Excidio Britanniae [c] and Historia Brittonum.
Since 1 April 1974 any parish council in England has the right to resolve to call itself a town council and many communities have taken up this right, including areas that preserved continuity with charter trustees. However, no successor parishes have exercised this right (e.g. Ilkley). This list does not include cities in England
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The grey squirrel is a carrier of the squirrel pox virus which kills red squirrels but not grey squirrels. [10] The European crayfish is susceptible to crayfish plague which is spread by the introduced signal crayfish. [11] Unlike some other environmental problems such as pollution, the effect of an introduced species is not a single event.