Results 31 to 40 of about 5,690 (270)

Chromatic anomalies in Akodontini (Cricetidae: Sigmodontinae) [PDF]

open access: yesBrazilian Journal of Biology, 2019
F. A. Silva   +4 more
doaj   +5 more sources

Geographic distribution of the genera of the Tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae) in South America: patterns of distribution and diversity

open access: yesArquivos De Zoologia, 2013
The Oryzomyini is the most diverse tribe of the sigmodontine (Cricetidae: Sigmodontinae) radiation, including 28 genera and about 130 species, with this diversity reflected in the ecological and morphological variation observed among members.
Joyce R Prado   +1 more
exaly   +2 more sources

Cave use by the Broad-footed Climbing Rat Rhipidomys latimanus (Tomes, 1860) in Santander, Colombia.

open access: yesMammalogy Notes, 2020
In this note, I report two field observations of R. latimanus using caves. These records provide new data about the natural history of R. latimanus, previously, this species was considered mainly arboreal and solitary.
Miguel Rodríguez-Posada
doaj   +1 more source

Placentation in Sigmodontinae: a rodent taxon native to South America [PDF]

open access: yesReproductive Biology and Endocrinology, 2011
Abstract Background Sigmodontinae, known as "New World rats and mice," is a large subfamily of Cricetidae for which we herein provide the first comprehensive investigation of the placenta. Methods Placentas of various gestational ages ranging from early pregnancy to near ...
Favaron, Phelipe O   +6 more
openaire   +5 more sources

Distribution extension of Abrawayaomys ruschii Cunha and Cruz, 1979 (Rodentia: Cricetidae) with the first records in the state of Paraná, southern Brazil [PDF]

open access: yesCheck List, 2014
Abrawayaomys ruschii is a rare sigmodontinae rodent with fewer than 10 known localities distributed in the states of Espírito Santo, Minas Gerais, Rio de Janeiro and Santa Catarina.
Ricardo Cerboncini   +9 more
doaj   +3 more sources

First record of Neotomys ebriosus Thomas, 1894 (Mammalia: Rodentia: Sigmodontinae) from Tucuman province, northwestern Argentina [PDF]

open access: yesCheck List, 2017
Neotomys ebriosus Thomas, 1894 (Mammalia: Rodentia: Sigmodontinae) is a monotypic genus of sigmodontine rodent restricted to the Central Andes of South America.
Ignaico Ferro, Ruben Barquez
doaj   +3 more sources

Sigmodontinos (Mammalia, Rodentia) pleistocenicos del sudoeste de la provincia de Buenos Aires (Argentina): aspectos sistematicos, paleozoogeograficos y paleoambientales

open access: yesEstudios Geologicos, 1996
Se describen nuevos restos de sigmodontinos provenientes de la localidad Bajo San José (sudoeste de la provincia de Buenos Aires, Argentina), de Edad Ensenadense (Pleistoceno temprano-medio).
U. F. J. Pardiñas, C. Deschamps
doaj   +1 more source

Kunsia tomentosus (Rodentia: Cricetidae) [PDF]

open access: yes, 2016
Kunsia tomentosus (Lichtenstein, 1830), the woolly giant rat, is a semifossorial cricetid typically associated with the Cerrado and Beni domains in central South America. Kunsia was recently revised and includes only 1 species.
Bezerra, Alexandra M. R.   +1 more
core   +2 more sources

Revision and analysis of the chromosome variability in the speciose genus Akodon (Rodentia, Sigmodontinae), including new data from Argentina.

open access: yesAnais da Academia Brasileira de Ciências, 2023
Rodentia has a high species number and chromosomal variability. The South American genus Akodon is one of the most speciose muroids, with more than 40 species included in several species groups.
C. Labaroni   +10 more
semanticscholar   +1 more source

Divergence in Zygodontomys (Rodentia: Sigmodontinae) and Distribution of Amazonian Savannas [PDF]

open access: yesJournal of Heredity, 2009
Northern South America presents a diverse array of nonforest or savanna-like ecosystems that are patchily distributed. The distribution of these open habitats has been quite dynamic during Quaternary glacial-interglacial cycles; yet, the relevance of climatically driven vicariance events to the diversification of nonforest Amazonian vertebrates remains
Luiz Flamarion B. Oliveira   +4 more
openaire   +3 more sources

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