Sorex jacksoni, Hall & Gilmore, 1932
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publication ID |
https://doi.org/ 10.5281/zenodo.6870843 |
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DOI |
https://doi.org/10.5281/zenodo.6869738 |
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persistent identifier |
https://treatment.plazi.org/id/3D474A54-A032-875E-FFF5-AAFE16D9F79A |
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treatment provided by |
Felipe |
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scientific name |
Sorex jacksoni |
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Saint Lawrence Island Shrew
French: Musaraigne de Saint Lawrence / German: St. Lawrence-Rotzahnspitzmaus / Spanish: Musarana de San Lorenzo
Other common names: Saint Lawrence Shrew
Taxonomy. Sorex jacksoni Hall & Gilmore, 1932 View in CoL ,
“ Sevoonga , 2 miles [= 3- 2 km] east of North Cape, St. Lawrence Island , Bering Sea , Alaska,” USA.
Sorexjacksoni is in the S. cinereus group and subgenus Otisorex. It is included in the Beringian clade with S. pribilofensis , S. portenkoi , S. ugyunak , S. camtschaticus, and S. leucogaster , all six species might represent one wide-ranging species based on genetic information, but they are retained here.
Sorex jacksoni previously included S. portenkoi , S. ugyunak , and S. leucogaster , although they have been variously placed as distinct species and conspecifics. There is little genetic distance among all species in the Beringian clade, and there are no significant differences between karyotypes of S. jacksoni and mainland S. cinereus , although genetic studies show that the Beringian clade is notsister to S. cinereus butis closest to S. lyelli , S. haydeni , and S. preblei . Because of conflicting genetic, morphological, and karyological studies, all six species of the Beringian clade are considered distinct until additional research is conducted. Monotypic.
Distribution. St. Lawrence I, off W Alaska (USA). View Figure
Descriptive notes. Head-body 62-71 mm, tail 32-37 mm, hindfoot 12-14 mm; weight 4-5 g. The Saint Lawrence Island Shrew is medium-sized. Dorsum is very dark brown, and sides and venter are whitish, with brownish hue. Tail is relatively short, narrow, and distinctly bicolored, being pale brown above and whitish below. Teeth are dark red. There are five unicuspids,fifth is minute, and first through fourth get slightly smaller from front to back. Chromosomal complement has 2n = 66 and FN = 70.
Habitat. Moist maritime tundra, including boggy areas, fell-field habitats, and mesic tundra habitats.
Food and Feeding. No information.
Breeding. No information.
Activity patterns. No information.
Movements, Home range and Social organization. No information.
Status and Conservation. Classified as Least Concern on The IUCN Red List. The Saint Lawrence Island Shrew has a restricted distribution on a single island butis considered relatively common. It is often found in human settlements and can even find its way into places were dried or frozen meatis stored.
Bibliography. Demboski & Cook (2003), Hoffmann & Peterson (1967), Hope et al. (2012), lvanitskaya & Kozlovsky (1985), Naylor & Roach (2016f), Rausch & Rausch (1995), van Zyll de Jong (1982, 1991).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
