A5019067973- Animal Ecology and Behavior Studies
- Evolution and Paleontology Studies
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Genetic diversity and population structure
- Ecology and Vegetation Dynamics Studies
- Bat Biology and Ecology Studies
- SARS-CoV-2 and COVID-19 Research
- Cell Image Analysis Techniques
- scientometrics and bibliometrics research
- Genetic Mapping and Diversity in Plants and Animals
- Chromosomal and Genetic Variations
- Animal Behavior and Welfare Studies
- Work-Family Balance Challenges
- Marine and coastal ecosystems
- Effects of Environmental Stressors on Livestock
- Wildlife-Road Interactions and Conservation
- Plant and soil sciences
- Geology and Paleoclimatology Research
- Climate Change and Geoengineering
- Thermoregulation and physiological responses
- Zoonotic diseases and public health
- Insect and Pesticide Research
- Yersinia bacterium, plague, ectoparasites research
- Rangeland Management and Livestock Ecology
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024
National University of Tucumán
2019-2024
Centro Científico Tecnológico - San Juan
2024
Centro Científico Tecnológico - Tucumán
2021-2024
Instituto Argentino de Investigaciones de las Zonas Aridas
2014-2021
Instituto Argentino de Diagnóstico y Tratamiento
2021
Centro Científico Tecnológico - Mendoza
2007-2017
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...
Biodiversity patterns are the result of interaction numerous contemporary factors and historical opportunities for allopatric speciation. Several hypotheses regarding climatic features topographic characteristics have been reported as determinants species richness along elevation gradients. However, how these interact to shape small mammal dry Andes ecosystem is not well understood. The objectives this paper were analyze diversity central Andes, evaluate explain patterns. Our results showed...
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...
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...
Information from diversity inventories was used to study patterns of biodiversity and species distribution, identify potential priority areas for conservation, guide future sampling efforts. In this context, we compiled information on non-volant small mammal communities the high Andes (>2000 m). Here, present an open source dataset containing (species composition, number individuals captured), inventory design (type traps, efforts), environment (habitat) both unpublished published...
Abstract The Andean mountain range has played an important role in the evolution of South American biota. However, there is little understanding patterns species diversity across latitudinal and altitudinal gradients. In this paper, we examine small mammals along Central Dry Andes (SCDA) within framework two contrasting hypotheses: (a) richness decreases with increasing elevation latitude; (b) peaks at midpoints (mid‐domain). We explore composition pool, impact species–area relationships...
ABSTRACT Habitat can constrain and shape successful ecological physiological strategies, thus providing the context for evolution of life‐history traits. However, unpredictable challenges, such as storms, natural disasters, human activities also have great effects on stress. Glucocorticoids (GCs) are adrenal steroid hormones that play an important role in how vertebrates cope with these predictable environmental challenges. Although assessing GCs levels many applications study wildlife...
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...
Abstract Based on previously published molecular (mitochondrial) and herein provided morphological (qualitative quantitative data) evidence, we describe a new species of leaf-eared mouse the genus Phyllotis . The is morphometrically distinct when compared with other phylogenetically or geographically close , showing several differences in their external craniodental characters (e.g., proportionally broader nasals interorbital region, smaller tympanic bullae). endemic to central Argentina,...
Abstract Akodon oenos , a nominal form with type locality in northern Mendoza province, Argentina, has an intricate taxonomic history. Recently, it was considered junior synonym of spegazzinii on the basis morphological similarities one individual captured southern specimens belonging to series A. plus genetic similarity that single specimen representatives . We compared boliviensis species group recently and from northwestern Argentina. conducted analysis molecular markers (cytochrome- b...
Los Andes constituyen una de las cadenas montañosas más extensas del planeta y un verdadero laboratorio para el estudio la evolución biota sudamericana. En homenaje a José Yepes, uno los pioneros en caracterizar distribución mamíferos Argentina, buscamos esta contribución sintetizar, desde biogeografía ecológica, conocimiento que tenemos sobre patrones diversidad pequeños Centrales Áridos (ACA) factores causales. Caracterizamos, nivel regional local, riqueza roedores endemismos función...
Abstract Beta diversity in ecological communities can reflect adaptations of species to differences climate, environmental characteristics and site history, as well local dynamics. These dissimilarities among may different processes replacement richness difference or nestedness, which be generated by factors. Assemblages mountain regions are expected exhibit high beta due sharp variation historical events promoting isolation. Diversity patterns small mammals along elevation gradients the...
Based on a diverse Late-Holocene (1889–1743 cal yrs BP) small mammal assemblage (14 species, 204 individuals) resulting from the trophic activity of owls, we reconstruct paleoenvironmental conditions Las Chacritas area, Catamarca Province, northwestern Argentina. Twenty modern and one additional samples region were used as comparative parameters in reconstruction. Through direct comparison with present-day Chacritas, using Nonmetric Multidimensional Scaling, spatial temporal beta diversity...