Laelapid mites (Mesostigmata) ectoparasites of Oligoryzomys (Rodentia: Cricetidae) in north-eastern and central Argentina
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A new karyotype of Oligoryzomys (Sigmodontinae, Rodentia) from central Brazil.
A new karyotype of the genus Oligoryzomys was described for specimens collected in Brazilian Cerrado in Tocantins and Goiás States. Conventional staining, G-, C-banding, and Ag-NOR staining techniques were used for describe this karyotype with 2n=70, AN=74 or 76. The chromosome complement, with the highest diploid number known among Oligoryzomys species, differs from all others previously repor...
متن کاملKaryological geographic variation of Oligoryzomys nigripes Olfers, 1818 (Rodentia, Cricetidae) from Brazil
The karyotypes of 85 specimens of Oligoryzomys nigripes (Rodentia, Sigmodontinae) collected in the Cerrado and Atlantic Forest of seven states of Brazil were analyzed. Eighty four specimens presented a karyotype with 2n = 62 and one individual had 2n = 61 due to a monosomy of the X chromosome. High levels of intraand inter-population karyotypic variability, due to sex chromosomes heteromorphism...
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Otonyctomys hatti Anthony, 1932, is a rodent commonly called the Yucatán vesper mouse. A medium-sized, brightly colored mouse, it is the only species in the genus Otonyctomys. It is endemic to the Yucatan Peninsula. It seems to have arboreal habits and occurs in semideciduous tropical forest and vegetation near water. It feeds on seeds, either on the ground or in shrubs, and soft-bodied fruits....
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Akodon cursor (Winge, 1887) is a Sigmodontinae rodent commonly called the cursorial akodont. This small cursorial mouse has homogenous dorsal pelage that can range from dark to golden brown and it is 1 of 41 species in the genus Akodon. It is endemic to Brazil, South America, and is found in the Atlantic Forest, being the most abundant sigmodontine rodent of this large area. Deforestation withi...
متن کاملPeromyscus guardia (Rodentia: Cricetidae)
Peromyscus guardia Townsend, 1912 is a small, gray-brown cricetid commonly called the La Guarda deermouse. It is a Mexican endemic rodent from Angel de la Guarda Island and 2 islets off the northern tip of Angel de la Guarda in the Gulf of California. Populations of P. guardia were common up until the mid-1960s but have since declined. This species is currently listed as ‘‘Critically Endangered...
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ژورنال
عنوان ژورنال: Mastozoología Neotropical
سال: 2021
ISSN: 1666-0536
DOI: 10.31687/saremmn.21.28.1.0.05