The Skomer vole (''Clethrionomys glareolus skomerensis'') is a

subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...

bank vole The bank vole (''Clethrionomys glareolus'') is a small vole with red-brown fur and some grey patches, with a tail about half as long as its body. A rodent, it lives in woodland areas and is around in length. The bank vole is found in much of Eu ...

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to the island of

Skomer Skomer () or Skomer Island is an island off the coast of Pembrokeshire, in the community of Marloes and St Brides in west Wales. It is well known for its wildlife: around half the world's population of Manx shearwaters nest on the island, the A ...

, off the west coast of Wales. The bank vole was probably introduced by humans at some time after the last

glaciation A glacial period (alternatively glacial or glaciation) is an interval of time (thousands of years) within an ice age that is marked by colder temperatures and glacier advances. Interglacials, on the other hand, are periods of warmer climate be ...

. It is one of four small mammal species on Skomer. There are approximately 20,000 voles on the island. The vole's main

predator Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common List of feeding behaviours, feeding behaviours that includes parasitism and micropredation ...

s are

owl Owls are birds from the order Strigiformes (), which includes over 200 species of mostly solitary and nocturnal birds of prey typified by an upright stance, a large, broad head, binocular vision, binaural hearing, sharp talons, and feathers a ...

s, but it is also eaten by other predators, including

common kestrel The common kestrel (''Falco tinnunculus''), also known as the European kestrel, Eurasian kestrel or Old World kestrel, is a species of bird of prey, predatory bird belonging to the kestrel group of the falcon family (biology), family Falconidae. ...

common buzzard The common buzzard (''Buteo buteo'') is a medium-to-large bird of prey which has a large range. It is a member of the genus '' Buteo'' in the family Accipitridae. The species lives in most of Europe and extends its breeding range across much of ...

and

peregrine falcon The peregrine falcon (''Falco peregrinus''), also known simply as the peregrine, is a Cosmopolitan distribution, cosmopolitan bird of prey (raptor) in the family (biology), family Falconidae renowned for its speed. A large, Corvus (genus), cro ...

. Like other voles they are short-lived, surviving to around 18 months old at most. At their largest they are roughly long and weigh a maximum of .

Discovery

The Skomer vole was discovered by Robert Drane (d. 1914), a pharmacist born in Guestwick, Norfolk, but lived in Cardiff, who was a founding member of the Cardiff Naturalists' Society in 1867, and at sometime its president, and also an authority on porcelain and honorary curator of

Cardiff Museum National Museum Cardiff (), formerly known as the National Museum of Wales, is a museum and art gallery in Cardiff, Wales. The museum is part of the wider network of Amgueddfa Cymru – Museum Wales. Entry is kept free by a grant from the Wels ...

References

Clethrionomys Rodents of Europe Endemic fauna of Wales Environment of Pembrokeshire {{arvicolinae-stub