This article may be expanded with text translated from the corresponding article in Italian. (June 2022)Click [show] for important translation instructions.
|
Eurasian pygmy shrew [1] Temporal range: Early | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Eulipotyphla |
Family: | Soricidae |
Genus: | Sorex |
Species: | S. minutus |
Binomial name | |
Sorex minutus Linnaeus, 1766 | |
Eurasian pygmy shrew range |
The Eurasian pygmy shrew (Sorex minutus), often known simply as the pygmy shrew, is a widespread shrew of the northern Palearctic.
It measures about 5 cm (2.0 in) in length, not including the 3.5 cm (1.4 in) tail, and has an average weight of 4 g (0.14 oz).The hair on the back is blackish with shades ranging from reddish to purplish, very dense and shiny: the belly, throat, jaw, periocular area and lower part of the tail are contrasted whitish. The muzzle and legs are covered with sparse white hair (vibrissae in the muzzle ), while the skin is flesh colored: the ears are small and half hidden by the hair, they are dark flesh colored and shaped like a semicircle.In this species the head is larger in proportion to the body than in other shrews. It may be confused with Eurasian least shrew and the Etruscan shrew.
Eurasian pygmy shrews are solitary animals, active throughout the day and night and inhabiting areas of dense vegetation across a broad elevation range. [3] It lives off seeds, small insects and other invertebrates. [4] They use the burrows or tunnels of other rodents to live in, alone they burrow under tree stumps.They have many predators. The whole life is spent on a few hundred square metres where they establish trackways.The Eurasian pygmy shrew has one of the highest metabolic rates of any animal; to maintain homeostasis, it must eat every two hours. [5] [6] Due to this, it eats up to 125% of its body weight (about four grams) each day. [7] They are active for 24 hours per day in very short periods interspersed with sleep (say, 15 minutes of activity followed by 15 minutes of sleep).
The breeding season lasts from April through to August. Females usually produce between two and eight young per litter and care for the young in an underground nest. Since the gestation period is just over three weeks, they can have up to five litters in one year, though the life span of a pygmy shrew is a little over 15 months. [4]
Shrews are small mole-like mammals classified in the order Eulipotyphla. True shrews are not to be confused with treeshrews, otter shrews, elephant shrews, West Indies shrews, or marsupial shrews, which belong to different families or orders.
The Etruscan shrew, also known as the Etruscan pygmy shrew or the white-toothed pygmy shrew, is the smallest known extant mammal by mass, weighing only about 1.8 g (0.063 oz) on average.
The American pygmy shrew is a small shrew found in Northern Alaska, Canada, and the northern United States, south through the Appalachian Mountains. It was first discovered in 1831 by naturalist William Cane in Georgian Bay, Parry Sound.
The Arctic shrew, also known as the blackback shrew or saddlebacked shrew, is a medium-sized shrew found in Canada and the northern United States. Separate species status has been proposed for the maritime shrew which is found in New Brunswick and Nova Scotia and had been considered to be a subspecies of the Arctic shrew. The tundra shrew was formerly considered to be a subspecies of the Arctic shrew.
The North American least shrew is one of the smallest mammals, growing to be only up to 3 inches long. It has a long pointed snout and a tail never more than twice the length of its hind foot. The dense fur coat is either grayish-brown or reddish-brown with a white belly. Its fur becomes lighter in the summer and darker in the winter. Although similar in appearance to several species of rodents, all shrews are members of the order Eulipotyphla and should not be mistaken for a member of the order Rodentia. The North American least shrew's eyes are small and its ears are completely concealed within its short fur, giving it very poor eyesight and hearing.
The smoky shrew is a medium-sized North American shrew found in eastern Canada and the northeastern United States and extends further south along the Appalachian Mountains.
The southern short-tailed shrew is a gray, short-tailed shrew that inhabits the eastern United States.
The vagrant shrew, also known as the wandering shrew, is a medium-sized North American shrew. At one time, the montane shrew and the Orizaba long-tailed shrew were considered to belong to the same species.
The common shrew, 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 55 to 82 millimetres long and weighs 5 to 12 grams, and has velvety dark brown fur with a pale underside. It is one of the rare venomous mammals. Juvenile shrews have lighter fur until their first moult. The common shrew has small eyes, a pointed, mobile snout and red-tipped teeth. It has a life span of approximately 14 months.
The Eurasian water shrew, known in the United Kingdom as the water shrew, is a relatively large shrew, up to 10 cm (4 in) long, with a tail up to three-quarters as long again. It has short, dark fur, often with a few white tufts, a white belly, and a few stiff hairs around the feet and tail. It lives close to fresh water, hunting aquatic prey in the water and nearby. Its fur traps bubbles of air in the water which greatly aids its buoyancy, but requires it to anchor itself to remain underwater for more than the briefest of dives.
Elliot's short-tailed shrew is a small, slate grey, short-tailed species of shrew. Its common name comes from Daniel Giraud Elliot, who first described the species in 1899.
The Asian house shrew is a shrew species native to South and Southeast Asia that has been listed as Least Concern on the IUCN Red List since 2008 because of its large population and wide distribution. It has been introduced in several West Asian and East African countries. It is considered an invasive species and implicated in the demise of several island lizard species.
The Eurasian least shrew, also called the lesser pygmy shrew, is the second-smallest mammal by mass after the Etruscan shrew.
Laxmann's shrew, or the masked shrew, is a species of shrew. Its range extends from northern Scandinavia and the Baltic to the Sea of Japan, including Hokkaidō, Sakhalin, and the Korean Peninsula. It favours mountain forests but is sometimes found in tundra and moorland, and also in lowland areas as well. It avoids cultivated land.
The Ussuri shrew, also known as the giant shrew, is a species of shrew found in Northeast Asia. An adult Ussuri shrew has a total length including the tail of 137 to 170 mm. It is found in valleys and on the forested slopes of mountains in the Korean Peninsula, northeastern China, and the Russian Far East. It is rarely observed, and its ecology is largely unknown.
The shrew gymnure, or shrew hedgehog, is a species of mammal in the family Erinaceidae and is the only extant species in the genus Neotetracus. It is found in China, Myanmar, and Vietnam.
The bicolored shrew or bicoloured white-toothed shrew is a species of mammal in the family Soricidae. It is found in eastern, central and southern Europe and in western Asia. It is a nocturnal species and feeds on insects and other small creatures. Several litters of young are born during the warmer months of the year in a nest of dry grasses in a concealed location.
The alpine shrew is a species of mammal in the family Soricidae. It is found in the alpine meadows and coniferous forests of central and southern European mountain ranges.
The southeastern shrew is a species of mammal in the family Soricidae. It is found in the southeastern United States.
The long-tailed shrew or rock shrew is a small shrew found in Atlantic Canada and the Northeastern United States.
Content in this edit is translated from the existing Italian Wikipedia article at it:Sorex minutus; see its history for attribution.