Results 211 to 220 of about 2,933 (233)

Ultraconserved Elements Improve the Resolution of Difficult Nodes within the Rapid Radiation of Neotropical Sigmodontine Rodents (Cricetidae: Sigmodontinae).

Systematic Biology, 2021
Sigmodontine rodents (Cricetidae, Sigmodontinae) represent the second largest muroid subfamily and the most species-rich group of New World mammals, encompassing above 410 living species and ca. 87 genera.
A. Parada, J. Hanson, G. D’Elía
semanticscholar   +1 more source

Incisor overgrowth and molar malocclusion in Thaptomys nigrita (Rodentia: Sigmodontinae)

Mammalia (Paris)
Rodents possess continuously growing incisors requiring balanced wear to avoid dental disorders. While common in captivity, dental anomalies are rarely reported in wild populations.
Mariana de Paula Torres, C. Pires, C. Bonvicino   +2 more
semanticscholar   +1 more source

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, L. F. Machado, A. F. Mendonça, E. M. Vieira   +3 more
openaire   +1 more source

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
Elisandra Almeida, Chiquito, Alexandre Reis, Percequillo   +1 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, C. Pires, Bernardo R. Teixeira, C. Bonvicino   +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, B. E. De Andrade Silva, Aline Rivera Maldonado, R. V. Vilela, J. Luque, R. De Oliveira Simões   +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, L. Antoniazzi, V. Colombo, P. Beldomenico, L. Monje   +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

Allometric Relations of Neotropical Small Rodents (Sigmodontinae) in Anthropogenic Environments

Zoological Science, 2013
The present study aims at assessing allometric relationships in the Sigmodontinae rodents (Calomys tener, Akodon cf. montensis, Necromys lasiurus, Oligoryzomys flavescens, and Oligoryzomys nigripes), and morphological variation among different habitats in human-dominated environments in Southeastern Brazil.
Luís M, Rosalino, Paula S, Martin, Carla, Gheler-Costa, Paula C, Lopes, Luciano M, Verdade   +4 more
openaire   +2 more sources

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   +1 more source