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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 ...
List of cities and towns in Bulgaria; List of cities and towns in Croatia; List of cities, towns and villages in Cyprus; List of cities and towns in the Czech Republic; List of cities in Denmark; List of cities and towns in Estonia; List of cities and towns in Finland; List of communes in France with over 20,000 inhabitants
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.
List of places in England; Mill towns in the United Kingdom; List of cities in the United Kingdom; List of post towns in the United Kingdom; List of United Kingdom locations; Category:Towns in England by county; Urban district (Great Britain and Ireland), settlement areas in the pre-1974 reform governance structure which had town-equivalent ...
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.
The name of the family, Poxviridae, is a legacy of the original grouping of viruses associated with diseases that produced poxes on the skin. Modern viral classification is based on phenotypic characteristics; morphology, nucleic acid type, mode of replication, host organisms, and the type of disease they cause.
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 ...