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The northern short-tailed shrew (Blarina brevicauda) is the largest shrew in the genus Blarina, [3] and occurs in the northeastern region of North America. [4] It is a semifossorial, highly active, and voracious insectivore and is present in a variety of habitats like broadleaved and pine forests among shrubs and hedges as well as grassy river banks. [5]
These include the Eurasian or common shrew (Sorex araneus) and the American vagrant shrew (Sorex vagrans) and northern short-tailed shrew (Blarina brevicauda). These shrews emit series of ultrasonic squeaks. [15] [16] By nature the shrew sounds, unlike those of bats, are low-amplitude, broadband, multiharmonic, and frequency modulated. [16]
The genus Blarina, commonly called short-tailed shrews, is a genus of relatively large shrews with relatively short tails found in North America. Description [ edit ]
Elliot's short-tailed shrew is found in lowland environments with heavy vegetation from southern Iowa and Nebraska in the north to parts of Texas and northern Louisiana in the south, including much of the states of Missouri, Kansas, Oklahoma, and Arkansas, and the northeastern corner of Colorado. [2] Two subspecies are currently recognised:
The North American least shrew will also sometimes live inside beehives and eat all the larvae. It will often share its food with other shrews. It eats more than its body weight each day and is known to store food. [4] [7] The North American least shrew makes its home in burrows or shallow runways under flat stones or fallen logs.
Soricidin is a paralytic oligopeptide found in the venomous saliva of the northern short-tailed shrew (Blarina brevicauda); [1] in the wild, shrews use it to paralyze their prey (typically insects). [2] Its name is a reference to "Soricidae", the family to which shrews belong. [3]
Cockrum's gray shrew (N. cockrumi) Crawford's gray shrew (N. crawfordi) Large-eared gray shrew (N. evotis) Villa's gray shrew (N. villai) There are several extinct species of Notiosorex described from the fossil record: [2] †N. dalquesti †N. harrisi †N. jacksoni †N. repenningi
The ornate shrew is found along portions of the west coast of North America and a few near shore islands. The northern extent is around 39 degrees latitude in California. The range extends south into the Baja California peninsula. There is a stretch of territory through Baja where the shrew is not found, then it is found again near the southern ...
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