New record of Andalgalomys olrogi (Rodentia: Sigmodontinae) in Catamarca, Argentina, expands its altitudinal and environmental range

A partir del estudio de dos muestras de egagrópilas de Tyto furcata colectadas en Alumbrera, a 1650m s. n. m. en el extremo norte del Campo del Pucará, departamento Andalgalá, Catamarca, Argentina, presentamos un novedoso registro para el roedor sigmodontino Andalgalomys olrogi Williams & Mares, 1978. Documentamos por primera vez la presencia de esta especie a más de 1300 m de altitud y en un ambiente de pastizales de neblina de Yungas (parcialmente modificados por actividades antrópicas). Su escasa representación en las muestras estudiadas (< 1,6%) sugiere que el Campo del Pucará representa un área marginal dentro de su rango de distribución.We present a novel record for the sigmodontine rodent Andalgalomys olrogi Williams and Mares, 1978, from the analysis of two samples of Tyto furcata pellets collected in Alumbrera, 1650 m a. s. l. at the northern end of Campo del Pucará, Andalgalá department, Catamarca, Argentina. We document the presence of Andalgalomys olrogi at a higher elevation than reported before (more than 1300 m) and in a highland grassland environment of Yungas (partially modified by anthropic activities) for the first time. Its low representation in the studied samples (< 1.6%) suggests that Campo del Pucará represents a marginal area within its range of distributionFil: Günther Ortiz Tempel, P.. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Jayat, Jorge Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Fundación Miguel Lillo; ArgentinaFil: Ortiz, Pablo Edmundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Correlación Geológica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Departamento de Geología. Cátedra Geología Estructural. Instituto Superior de Correlación Geológica; Argentin

A new living species of the genus Ctenomys (Rodentia: Ctenomyidae) from central-western Argentina

Abstract The genus Ctenomys Blainville, 1826 includes 68 living species of small to medium-sized (100–1200 g) caviomorph rodents of subterranean habits. During the last decade, this genus has been the subject of numerous taxonomic studies, including the description of new species and the proposal of novel synonyms. Based on phylogenetic analysis of mitochondrial DNA sequences and qualitative and quantitative morphological traits, here we review the species boundaries of the tuco-tucos of the species group of C. mendocinus and describe a new species. The new species is morphologically distinct from other phylogenetically and geographically close species of Ctenomys (e.g., C. fochi, C. mendocinus), showing several differences in their craniodental traits (e.g., proportionally longer nasals and less globose tympanic bullae). The new species occurs in montane grasslands and shrublands of northwestern Mendoza (ca. 2710 m a.s.l.) and in lowlands (ca. 1000 m a.s.l.) of the Monte Desert ecoregion in an area highly impacted by accelerated processes associated with the wine industry

Analyse des remaniements du protéome associés à la levée de dormance d’une graine imbibée

National audienc

Taxonomy based on science is necessary for global conservation

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