Results 231 to 240 of about 5,690 (270)
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Taxonomic status of Brucepattersonius albinasus (Rodentia: Sigmodontinae)

Zootaxa, 2006
Molecular (cytochrome b) comparisons between topotypical specimens of Brucepattersonius griserufescens and the holotype of B. albinasus, both described from the same locality in southeastern Brazil, reveal a very low estimate of genetic distance, equivalent to those obtained in comparisons between haplotypes of B. griserufescens.
Vilela, Júlio Fernando   +2 more
openaire   +3 more sources

Juvenile dispersal in Calomys venustus (Muridae: Sigmodontinae)

Acta Oecologica, 2004
Both spacing behaviour and dispersal movement are viewed as hierarchical processes in which the effects may be expressed at spatial scale. This research was carried out to examine the hypothesis that the presence of parents promotes the dispersal of juveniles from their natal nest and their father or mother home-range, in Calomys venustus.The study was
Cecilia Provensal   +3 more
openaire   +2 more sources

New findings on the karyotype and distribution of two Rhipidomys Tschudi, 1845 species (Rodentia: Sigmodontinae) from Upper Purus River

Mammalia (Paris)
Rhipidomys is a Sigmodontinae genus with a great diversity in western Amazonia, including Rhipidomys gardneri and Rhipidomys leucodactylus. These species shared the same diploid number of 44, however, two fundamental numbers were attributed to R ...
R. O. Lanes   +3 more
semanticscholar   +1 more source

New species of the genus Alippistrongylus (Nematoda: Trichostrongylina) parasitic in Delomys dorsalis (Rodentia: Sigmodontinae) in the Atlantic Forest of Rio de Janeiro, Brazil

Journal of Helminthology
We describe a new species of the genus Alippistrongylus (Nematoda: Trichostrongylina) in the small intestine of Delomys dorsalis (Rodentia: Sigmodontinae) found in Itatiaia National Park (Parque Nacional do Itatiaia, PNI), state of Rio de Janeiro, Brazil.
D. Sá Lemes   +5 more
semanticscholar   +1 more source

Sigmodontinae rodents as potential reservoirs for Borrelia burgdorferi sensu lato in the Delta and Paraná Islands ecoregion, Argentina

Medical and Veterinary Entomology
The Borrelia burgdorferi sensu lato (s.l.) complex includes a group of spirochete bacteria that are involved in transmission cycles with vertebrates and the ticks associated with them.
Johann Barolin   +4 more
semanticscholar   +1 more source

A New Genus for the “Alfaroi Group” of Oryzomys Sensu Lato (Rodentia: Cricetidae: Sigmodontinae)

American Museum Novitates
A new cricetid rodent genus is described for the Alfaroi Group of Oryzomys sensu lato. The new genus, which includes seven Mesoamerican species of small oryzomyines, is demonstrably monophyletic and easily diagnosed morphologically from its sister taxon,
Robert S. Voss
semanticscholar   +1 more source

Assessment of the distribution of Pseudoryzomys simplex (Cricetidae, Sigmodontinae) in the Pampean region, central-east Argentina, in the late-Holocene

The Holocene, 2022
Pseudoryzomys simplex (Winge 1887) is a small to medium sized terrestrial oryzomyine rodent (Cricetidae, Sigmodontinae) widely distributed in humid environments of tropical and subtropical lowlands of South America with a marked rainy season.
Sara García-Morato   +4 more
semanticscholar   +1 more source

New species of the subgenusRadfordia(Hesperomyobia) (Acariformes: Myobiidae) – parasites of the subfamily Sigmodontinae (Rodentia: Cricetidae: Sigmodontinae)

International Journal of Acarology, 2014
Two new species of myobiid mites belonging to the subgenus Radfordia (Hesperomyobia) (Acariformes: Myobiidae) are described from South American rodents of the subfamily Sigmodontinae (Rodentia: Cricetidae): Radfordia rhipidomys sp. nov. from Rhipidomys mastacalis (Lund, 1840) from Brazil and Radfordia burbanoae sp. nov.
Andre V. Bochkov, Mauricio Barreto
openaire   +2 more sources

The taxonomic status of Nectomys saturatus Thomas, 1897 (Cricetidae: Sigmodontinae)

Zootaxa, 2019
Nectomys (Sigmodontinae, Oryzomyini) is currently composed by five species: Nectomys apicalis, N. magdalenae, N. palmipes, N. rattus, and N. squamipes. These rodents have strong morphologic adaptations to semiaquatic habit and inhabit forests along river and streams in almost the entire South American continent. Although Nectomys is not a very speciose
Chiquito, Elisandra Almeida   +1 more
openaire   +4 more sources

Cranial shape predicts arboreal activity of Sigmodontinae rodents

Journal of Zoology, 2019
AbstractBrain enlargement is an adaptation in animals that use the space in three dimensions and need to integrate information of complex environments. As consequence, this adaptation can result in differences in skull shape among species with different types of locomotion and level of arboreality.
N. F. Camargo   +3 more
openaire   +2 more sources

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