Search Results - "PARDIÑAS, ULYSES F. J."

Extinctions in near time: new radiocarbon dates point to a very recent disappearance of the South American fox Dusicyon avus (Carnivora: Canidae) by Prevosti, Francisco J., Ramírez, Mariano A., Schiaffini, Mauro, Martin, Fabiana, Udrizar Sauthier, Daniel E., Carrera, Marcelo, Sillero-Zubiri, Claudio, Pardiñas, Ulyses F. J.

“…Almost all large carnivorans (Carnivora; > 20 kg) that inhabited South America became extinct around the Late Pleistocene–Early Holocene transition. Two…”
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A new genus of oryzomyine rodents (Cricetidae, Sigmodontinae) with three new species from montane cloud forests, western Andean cordillera of Colombia and Ecuador by Brito, Jorge, Koch, Claudia, Percequillo, Alexandre R., Tinoco, Nicolás, Weksler, Marcelo, Pinto, C. Miguel, Pardiñas, Ulyses F. J.

“…The Andean cloud forests of western Colombia and Ecuador are home to several endemic mammals; members of the Oryzomyini, the largest Sigmodontinae tribe, are…”
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Unlocking Andean sigmodontine diversity: five new species of Chilomys (Rodentia: Cricetidae) from the montane forests of Ecuador by Brito, Jorge, Tinoco, Nicolás, Pinto, C Miguel, García, Rubí, Koch, Claudia, Fernandez, Vincent, Burneo, Santiago, Pardiñas, Ulyses F J

“…The Andean cloud forests of Ecuador are home to several endemic mammals. Members of the Thomasomyini rodents are well represented in the Andes, with being the…”
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Genetic footprints of late Quaternary climate change in the diversity of Patagonian-Fueguian rodents by Lessa, Enrique P, D'Elia, Guillermo, Pardinas, Ulyses F.J

“…Species are impacted by climate change at both ecological and evolutionary time scales. Studies in northern continents have provided abundant evidence of…”
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Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation by Formoso, Anahí E, Martin, Gabriel M, Teta, Pablo, Carbajo, Aníbal E, Sauthier, Daniel E Udrizar, Pardiñas, Ulyses F J

“…The Patagonian opossum (Lestodelphys halli), the southernmost living marsupial, inhabits dry and open environments, mainly in the Patagonian steppe (between…”
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Pliocene sigmodontine rodents (Mammalia: Cricetidae) in northernmost South America: test of biogeographic hypotheses and revised evolutionary scenarios by Ronez, Christophe, Carrillo-Briceño, Jorge D, Hadler, Patrícia, Sánchez-Villagra, Marcelo R, Pardiñas, Ulyses F J

“…We document the first occurrence of Sigmodontinae (Mammalia, Rodentia, Cricetidae) from the Pliocene of northern South America, from the San Gregorio Formation…”
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A phylogenetic appraisal of Sigmodontinae (Rodentia, Cricetidae) with emphasis on phyllotine genera: systematics and biogeography by Salazar-Bravo, Jorge, Pardiñas, Ulyses F. J., D'Elía, Guillermo

“…Here, we present a comprehensive phylogenetic analysis based on nuclear and mitochondrial DNA sequences of rodents of the subfamily Sigmodontinae. The emphasis…”
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Phylogeography of Loxodontomys micropus with comments on the alpha taxonomy of Loxodontomys (Cricetidae: Sigmodontinae) by Cañón, Carola, D'Elía, Guillermo, Pardiñas, Ulyses F. J., Lessa, Enrique P.

“…Loxodontomys micropus is a rodent that is widely distributed in Andean and Patagonian Argentina and Chile. This range covers a heterogeneous area that has been…”
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New morphological data on the rare sigmodontine Mindomys hammondi (Rodentia, Cricetidae), an arboreal oryzomyine from north-western Andean montane forests by Brito, Jorge, Tinoco, Nicolás, Curay, Jenny, Pardiñas, Ulyses F. J.

“…The monotypic rodent Mindomys Weksler, Percequillo & Voss, 2006 (Cricetidae, Sigmodontinae) is one of the rarest members of the speciose tribe Oryzomyini. As…”
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Systematics of Necromys (Rodentia, Cricetidae, Sigmodontinae): species limits and groups, with comments on historical biogeography by D'Elía, Guillermo, Pardiñas, Ulyses F. J., Jayat, J. Pablo, Salazar-Bravo, Jorge

“…We present the most comprehensive systematic study to date of Necromys, a rodent genus distributed in open areas north and south of Amazonia and in Andean…”
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Enlarging rodent diversity in west-central Argentina: a new species of the genus Holochilus (Cricetidae, Sigmodontinae) by Pardiñas, Ulyses F. J., Teta, Pablo, Voglino, Damián, Fernández, Fernando J.

“…On the basis of an adult individual collected in 1955 plus 3 mandibles of latest Holocene age, we describe a new living species of the amphibious rat…”
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Comparative morphology of the rhinarium and upper lip in sigmodontine rodents: Refined nomenclature, intertribal variation in a phylogenetic framework, and functional inferences by Pardiñas, Ulyses F J, Brito, Jorge, Soto, Erika Cuellar, Cañón, Carola

“…Rodents have received substantial attention in the study of olfaction. However, the rhinarium, the naked part of the nose, which plays an important role in…”
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Digestive morphology of two species of Abrothrix (Rodentia, Cricetidae): comparison of populations from contrasting environments by Naya, Daniel E., Feijoo, Matias, Lessa, Enrique P., Pardiñas, Ulyses F. J., Teta, Pablo, Tomasco, Ivanna H., Valdez, Lourdes, D'Elía, Guillermo

“…The digestive system is one of the most reactive physiological systems to changes in environmental conditions as a result of a trade-off between functional…”
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A New Genus of Oryzomyine Rodent (Cricetidae: Sigmodontinae) from the Pleistocene of Argentina by PARDINAS, Ulyses F. J

“…Based on a right maxillary with 1st molar recovered in Pleistocene (Ensenadan) deposits from south-central Buenos Aires Province, Argentina, a new genus and…”
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A unique cricetid experiment in the northern high-Andean Páramos deserves tribal recognition by Pardiñas, Ulyses F. J., Curay, Jenny, Brito, Jorge, Cañón, Carola

“…While hypsodonty mostly is associated with medium to large body sizes in sigmodontine rodents, high-crowned molars combined with small bodies rarely are…”
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A new species of the tetraploid vizcacha rat Tympanoctomys (Caviomorpha, Octodontidae) from central Patagonia, Argentina by Teta, Pablo, Pardiñas, Ulyses F. J., Sauthier, Daniel E. Udrizar, Gallardo, Milton H.

“…A new living species of the desert-adapted tetraploid rodent Tympanoctomys (Caviomorpha, Octodontidae) is described. The new form is restricted to the type…”
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Morphological similarity and dental homologies in two sigmodontine rodents (Mammalia, Cricetidae) from different tribes: A topological analysis to explore convergence by Barbière, Franck, Ronez, Christophe, Ortiz, Pablo E., Pardiñas, Ulyses F. J.

“…We present a topological analysis of the third upper molars (M3) using the recently developed ICAMER nomenclatural system as a way to understand the dental…”
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A new species of arboreal rat, genus Oecomys (Rodentia, Cricetidae) from Chaco by Pardiñas, Ulyses F. J., Teta, Pablo, Salazar-Bravo, Jorge, Myers, Phil, Galliari, Carlos A.

“…A new species of rodent is added to the highly diverse genus Oecomys (Cricetidae, Sigmodontinae, Oryzomyini) based on specimens collected in the Argentinian…”
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Gross stomach morphology in akodontine rodents (Cricetidae: Sigmodontinae: Akodontini): a reappraisal of its significance in a phylogenetic context by Pardiñas, Ulyses F. J., Cañón, Carola, Galliari, Carlos A., Brito, Jorge, Hoverud, Nuria Bernal, Lessa, Gisele, De Oliveira, João Alves

“…Akodontini, the second largest tribe within sigmodontine rodents, encompasses several stomach morphologies. This is striking because most sigmodontine groups…”
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A new fossil cricetid (Rodentia, Sigmodontinae) from northeastern Brazil with remarks on small mammal extinctions in the tropical Quaternary by das Neves, Simone B., Pardiñas, Ulyses F. J., Hadler, Patrícia, Mayer, Elver L., Ribeiro, Ana M.

“…The rare cricetid rodent Bibimys Massoia, 1980 contains three extant species that are distributed in the lowlands of eastern South America between 35°S and…”
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