A5031149952- Evolution and Paleontology Studies
- Animal Ecology and Behavior Studies
- Bat Biology and Ecology Studies
- Wildlife Ecology and Conservation
- Genetic diversity and population structure
- Species Distribution and Climate Change
- Genetic Mapping and Diversity in Plants and Animals
- Chromosomal and Genetic Variations
- Ecology and Vegetation Dynamics Studies
- Zoonotic diseases and public health
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Marine Toxins and Detection Methods
- Land Use and Ecosystem Services
- Environmental and Ecological Studies
- Yersinia bacterium, plague, ectoparasites research
- Pleistocene-Era Hominins and Archaeology
- Amphibian and Reptile Biology
- Sepsis Diagnosis and Treatment
- Primate Behavior and Ecology
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Agriculture and Rural Development Research
- Pneumonia and Respiratory Infections
- Mollusks and Parasites Studies
- Environmental Philosophy and Ethics
Centro Científico Tecnológico - Mendoza
2012-2024
Instituto Argentino de Investigaciones de las Zonas Aridas
2012-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2010-2024
Instituto Argentino de Diagnóstico y Tratamiento
2005-2023
Austral University of Chile
2005
Instituto Canario de Ciencias Marinas
2005
University of Mendoza
2004
Observatorio de la Inmigración de Tenerife
1979
ObjectivesThe impact of oseltamivir on mortality in critically ill patients with 2009 pandemic influenza A (2009 H1N1) is not clear. The main objective this study was to investigate the relationship between timing antiviral administration and intensive care unit (ICU) outcomes.
Abstract The genus Ctenomys Blainville, 1826 includes 68 living species of small to medium-sized (100–1200 g) caviomorph rodents subterranean habits. During the last decade, this has been subject numerous taxonomic studies, including description new and proposal novel synonyms. Based on phylogenetic analysis mitochondrial DNA sequences qualitative quantitative morphological traits, here we review boundaries tuco-tucos group C. mendocinus describe a species. is morphologically distinct from...
The genus Ctenomys of subterranean rodents is one the most species-rich genera Mammalia, with 66 living species currently recognized. However, taxonomy dynamic several new and synonymies proposed during last decade. One groups that have undergone more changes in contents years mendocinus group. Here, based on phylogenetic analysis mitochondrial DNA sequences qualitative quantitative morphological evidence, we conducted an appraisal richness tuco-tucos C. group, describing two from...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 301:303-305 (2005) - doi:10.3354/meps301303 Bloom of marine diazotrophic cyanobacterium Trichodesmium erythraeum in Northwest African Upwelling Antonio G. Ramos1,*, Antera Martel2, Geoffrey A. Codd3, Emilio Soler2, Josep Coca1, Alex Redondo1, Louise F. Morrison3, James S. Metcalf3, Alicia Ojeda4, Sonia...
Abstract The Andes are known to be one of the most species-rich regions on Earth, with their origination promoting formation new habitats and acting as climatic barriers. This orogenic event was structured latitudinally 3 major segments having different times environmental historical conditions. Andean region has been historically important in evolutionary history small mammals is considered Earth highest values rodent species richness turnover. Therefore, provides an excellent opportunity...
The red viscacha rat, Tympanoctomys barrerae, is an octodontid rodent endemic to the arid west-central and southern regions of Argentina. It solitary, lives in complex burrows built soft soil, occurs at low population densities patches associated with salt basins sand dunes lowland habitats Monte Patagonia deserts. purpose this study was investigate genetic structure biogeography desert specialist. To assess variation 800-base pair fragment mitochondrial control region sequenced for 60...
Abstract The leaf‐eared mouse, Phyllotis xanthopygus (Waterhouse 1837) is a widely distributed sigmodontine rodent in South America, with populations ranging from central Peru to southern Argentina and Chile. Previous morphological molecular contributions have suggested that P. represents species complex. In order characterize disclose this cryptic complex, we perform genetic/phylogenetic analysis of representative samples across its geographical distribution. Phylogenetic analyses were...
The genome of the red vizcacha rat (Rodentia, Octodontidae, Tympanoctomys barrerae) is largest all mammals, and about double size their close relative, mountain Octomys mimax, even though lineages that gave rise to these species diverged from each other only 5 Ma. mechanism for this rapid expansion controversial, hypothesized be a consequence whole duplication or accumulation repetitive elements. To test alternative but nonexclusive hypotheses, we gathered evaluated evidence transcriptome...
Barn owls are the most widely distributed group of in world and among common accumulators small vertebrate remains at archeological paleontological sites. Despite its importance as a bone accumulator predictor paleoenvironmental conditions due to generalist habits, prey this raptor has been scarcely studied from an ecological community perspective, especially considering diverse range it captures. Archeological, paleontological, taphonomic studies typically reveal taxon-specific patterns,...
Abstract Caviomorph rodents represent one of the most distinctive groups mammals in southern S outh A merica drylands; they colonized from frica via trans‐oceanic dispersions E ocene (40–50 Ma ) and underwent an extraordinary ecological radiation after their arrival, thus making this group great interest for biogeographic evolutionary studies. The aim article was to provide a working hypothesis regarding biogeographical history diversification its conspicuous families, O ctodontidae. We...
Abstract Phyllotis Waterhouse 1837 is one of the most studied genera South American cricetid rodents. As currently understood, it includes 20 small to medium‐sized species predominantly rocky habitats. Among them, populations yellow‐rumped leaf‐eared mouse, traditionally referred P. xanthopygus (Waterhouse 1837), are widely distributed, extending from central Peru southern Chile and Argentina. Based mostly on molecular evidence, previous studies suggested that constitutes a complex, being...
Abstract The Ctenomys population from Anillaco, La Rioja Province, Argentina has been the subject of detailed studies circadian rhythms, vocalization, ecology and spatial dynamics. However, taxonomy systematics this as well populations inhabiting Andean areas province is unknown. In study, we present phylogenetic relationship “Anillaco tuco-tuco” two other , all distributed in northern portion Argentina. Based on molecular analyses morphological comparisons, reached to conclusion that...
El ratón delicado de los salares (Salinomys delicatus) es un pequeño roedor endémico Argentina.Ha sido considerado como vulnerable a la extinción dada su distribución restringida y en parches, tamaño poblacional especialización hábitats salinos.A pesar que el tiene adaptaciones morfológicas fi siológicas para supervivencia ambientes áridos salitrosos, poco lo se conoce historia natural.El presente trabajo objetivo estudiar natural S. delicatus, reportar nuevas localidades ocurrencia,...
Background Leptospirosis is a zoonotic disease that can be transmitted by contact with the urine of infected mammals. Rodents play mayor role in transmission leptospires to humans. The province Santa Fe reports greatest number cases Argentina. Yet, this region, there are still knowledge gaps regarding diversity rodent species may hosts pathogenic leptospires. aims study were evaluate presence leptospiral antibodies rodents from three riverside communities Fe, and identify factors associated...
Phyllotis xanthopygus (Waterhouse, 1837) is an Andean rodent endemic to South America. Despite its wide geographical distribution in Argentina, few individuals have been studied on the cytogenetic level and only through conventional staining. In this work, chromosome characterization of Argentine samples species was performed using solid staining, C-banding base-specific fluorochromes. Twenty two specimens were analyzed, collected provinces Jujuy, Catamarca, north south Mendoza. All showed...
To increase our understanding of the speciation process occurred in sibling species Graomys griseoflavus and centralis, a phylogeographic study was conducted based on sequences hypervariable segment mtDNA D-loop region. The resulting haplotype phylogenetic network showed two well-defined clusters, one for each species. clusters were connected by haplotypes from localities that are almost 300 km apart, situated Monte eco-region other, Chaco. This result is agreement with previous hypothesis...
Esta contribución es un homenaje a José Yepes por los 75 años transcurridos desde que describiera el género Tympanoctomys, y 90 de su ingreso al Museo Argentino Ciencias Naturales “Bernardino Rivadavia”. Las ratas vizcacha son la epítome roedores sudamericanos adaptados desierto, han constituido verdadero modelo, no solo presentar distintos atributos especializados para vida en ambientes xéricos, sino también como uno mamíferos con mayor número cromosómico. En este capítulo brindamos...