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The alpine shrew (''Sorex alpinus'') is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of mammal in the family Soricidae. It is found in the alpine meadows and coniferous forests of central and southern European mountain ranges.


Description

The Alpine shrew is in length, not including a tail as long as its body, and weighs between . It is a uniform greyish-black on its dorsal (upper) surface and greyish-brown on its underparts. The tips of its teeth are reddish-brown and it has a long pointed snout, small black eyes and rounded pink ears. Its legs and feet are white and the underside of its hairy tail is yellowish. Juveniles are somewhat paler than adults. It shares its range with the common shrew ''
Sorex araneus The common shrew (''Sorex araneus''), also known as the Eurasian shrew, is the most common shrew, and one of the most common mammals, throughout Northern Europe, including Great Britain, but excluding Ireland. It is long and weighs , and has ve ...
'' and the Eurasian pygmy shrew '' Sorex minutus'' but is distinguishable from these by its darker fur and longer tail.


Distribution and habitat

The Alpine shrew is found in the mountains and uplands of Central and Eastern Europe and parts of France. Its range includes the
Alps The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Swi ...
, the
Black Forest The Black Forest (german: Schwarzwald ) is a large forested mountain range in the state of Baden-Württemberg in southwest Germany, bounded by the Rhine Valley to the west and south and close to the borders with France and Switzerland. It is t ...
, the Jura Mountains, the mountains of southern Germany, the
Krkonoše The Giant Mountains, Krkonoše or Karkonosze (Czech: , Polish: , german: Riesengebirge) are a mountain range located in the north of the Czech Republic and the south-west of Poland, part of the Sudetes mountain system (part of the Bohemian Massif ...
, the
Beskids The Beskids or Beskid Mountains ( pl, Beskidy, cs, Beskydy, sk, Beskydy, rue, Бескиды (''Beskydŷ''), ua, Бескиди (''Beskydy'')) are a series of mountain ranges in the Carpathians, stretching from the Czech Republic in the west ...
, the
Tatra Mountains The Tatra Mountains (), Tatras, or Tatra (''Tatry'' either in Slovak () or in Polish () - '' plurale tantum''), are a series of mountains within the Western Carpathians that form a natural border between Slovakia and Poland. They are the hi ...
, the Carpathian Mountains, the
Transylvanian Alps The Southern Carpathians (also known as the Transylvanian Alps; ro, Carpații Meridionali ; hu, Déli-Kárpátok) are a group of mountain ranges located in southern Romania. They cover the part of the Carpathian Mountains located between the Pr ...
, the uplands of
Vosges The Vosges ( , ; german: Vogesen ; Franconian and gsw, Vogese) are a range of low mountains in Eastern France, near its border with Germany. Together with the Palatine Forest to the north on the German side of the border, they form a single ...
and the mountains of the former Yugoslavia. The Alpine shrew is found in Alpine meadows and in coniferous woodland at elevations between about . It sometimes occurs above the
tree line The tree line is the edge of the habitat at which trees are capable of growing. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually cold temperatures, extreme snow ...
but more normally favours damp pastures and swampy ground near small streams in areas with dwarf sparse conifers near the upper limit of tree cover. It tends to lurk in dense vegetation, occupies rock crevices and lives under boulders or fallen branches and often occurs near
mountain hut A mountain hut is a building located high in the mountains, generally accessible only by foot, intended to provide food and shelter to mountaineers, climbers and hikers. Mountain huts are usually operated by an Alpine Club or some organization ...
s. The Alpine shrew was recorded in the
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
Pyrenees The Pyrenees (; es, Pirineos ; french: Pyrénées ; ca, Pirineu ; eu, Pirinioak ; oc, Pirenèus ; an, Pirineus) is a mountain range straddling the border of France and Spain. It extends nearly from its union with the Cantabrian Mountains to ...
in the early 20th century. It is presumed
locally extinct Local extinction, also known as extirpation, refers to a species (or other taxon) of plant or animal that ceases to exist in a chosen geographic area of study, though it still exists elsewhere. Local extinctions are contrasted with global extinct ...
due to the lack of modern sightings.Palomo, L. J., Gisbert, J., & Blanco, J. C. (Eds.). (2007). Atlas y libro rojo de los mamíferos terrestres de España. Madrid: Organismo Autónomo de Parques Nacionales.


Behaviour

The Alpine shrew is nocturnal and is a skilled climber, using its tail for balance. It uses scent glands on its flanks to mark its
territory A territory is an area of land, sea, or space, particularly belonging or connected to a country, person, or animal. In international politics, a territory is usually either the total area from which a state may extract power resources or a ...
. Like other shrew species, it has a high metabolic rate and needs to feed frequently. It eats
insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three ...
s,
spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...
s,
snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class G ...
s and
earthworm An earthworm is a terrestrial invertebrate that belongs to the phylum Annelida. They exhibit a tube-within-a-tube body plan; they are externally segmented with corresponding internal segmentation; and they usually have setae on all segments. T ...
s and is in turn the
prey Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill ...
of
fox Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush''). Twelve sp ...
es,
weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets and European mink. Members of this genus are small, active predators, with long and slender b ...
s, domestic cats and
tawny owl The tawny owl (''Strix aluco''), also called the brown owl, is commonly found in woodlands across Europe to western Siberia, and has seven recognized subspecies. It is a stocky, medium-sized owl, whose underparts are pale with dark streaks, a ...
s.


Status

The Alpine shrew is listed as "
Near Threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify f ...
" in the IUCN's
Red List of Threatened Species The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biologi ...
. This is because it occupies a number of separate, disjunct mountain regions and seems to be slowly declining in numbers. It may be threatened by
habitat destruction Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...
as hydro-electric schemes and increased tourism impact its environment. It used to be present in the Pyrenees but has not been seen there for many years and may be extinct there, nor has it been seen recently in the Harz Mountain region of Germany.


References

{{Taxonbar, from=Q926608 Sorex Mammals described in 1837 Taxonomy articles created by Polbot