Alpine Shrew (Sorex alpinus) lives in mountain meadows across Central European mountains. It feeds on insects and worms. Its conservation status is Near Threatened.
Fascinating facts about the Alpine Shrew
- The Alpine shrew is a very small mammal, measuring only 6 to 7.7 cm in body length while its tail is roughly the same length, giving it a total length of about 12 to 15 cm. Adults weigh just 5.5-11.5 g, making them lighter than a penny. Its dorsal fur is a uniform greyish-black, contrasting with greyish-brown underparts that give it a subtle two-tone appearance.
- Among the shrews that share its mountainous habitat, the Alpine shrew stands out because its fur is a darker grey-black and its tail is noticeably longer than that of the common shrew and the Eurasian pygmy shrew. This colour and tail difference makes field identification reliable even when the species are found together. Both the common shrew (S. araneus) and the Eurasian pygmy shrew (S.
- The Alpine shrew inhabits alpine meadows and coniferous woodland from about 200 m up to 2 500 m elevation, favouring damp pastures and swampy ground near small streams. Although it can occasionally be found above the tree line, it most often seeks shelter in dense vegetation, rock crevices, under boulders or fallen branches, especially near mountain huts. These micro-habitats provide the moisture and cover the species needs to hunt insects and avoid predators.
- The Alpine shrew marks its home range with scent glands on its flanks, a behaviour that helps define its territory. It is active at night and excels at climbing, relying on its long tail for balance as it moves through dense vegetation and rock crevices. Like other shrews, it has a very high metabolic rate, so it must feed constantly on insects, spiders, snails and earthworms.
- The Alpine shrew is presumed locally extinct in the Spanish Pyrenees because no modern sightings have been recorded. Historically it was documented there in the early 20th century, but subsequent surveys have failed to confirm its presence. The lack of recent records suggests the population has disappeared, mirroring similar declines in other isolated mountain regions.
Sources
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At a glance
RangeCentral European mountains
HabitatMountain meadows
DietInsects and worms
About the Alpine Shrew
In the shadowy recesses of the Alpine forest, a tiny, enigmatic creature stirs, its diminutive frame belied by a ferocious appetite and unyielding tenacity. The Alpine shrew navigates its mountain domain with frenetic urgency, darting through the underbrush with a twitching, erratic gait that defies the stillness of its surroundings. As it forages for insects and seeds, its high-pitched squeaks punctuate the air, a testament to the unrelenting energy that drives this smallest of predators through its fragile, yet resilient, existence.
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