Английская Википедия:Caatinga vesper mouse
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The caatinga vesper mouse (Calomys expulsus) (also known as the caatinga laucha[1] or rejected vesper mouse[2]) is a rodent species in the family Cricetidae from South America.[1] It is endemic to eastern Brazil, where it is found in open savanna (cerrado) and thorny scrub (caatinga) habitats.[2] Its karyotype has 2n = 66 and FN = 68. It was formerly synonymized with C. callosus, but the latter has 2n = 50 and FN = 66.[1] Karyologic analysis of C. expulsus has shown that the X chromosome is large and submetacentric while the Y chromosome is either acrocentric or submetacentric.[3] Predators include the barn owl .[4] Sexual dimorphism in shape and size occurs; the former is present mainly before the age of 20 days. Males are smaller before age 50 days and larger thereafter, which becomes less prominent after 200 days.[5]
References
- ↑ 1,0 1,1 1,2 Шаблон:MSW3 Muroidea
- ↑ 2,0 2,1 Ошибка цитирования Неверный тег
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- Английская Википедия
- Calomys
- Endemic mammals of Brazil
- Fauna of the Caatinga
- Mammals of Brazil
- Rodents of South America
- Mammals described in 1841
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