A5062312454- Avian ecology and behavior
- Marine animal studies overview
- Isotope Analysis in Ecology
- Marine and fisheries research
- Identification and Quantification in Food
- Wildlife Ecology and Conservation
- Animal Vocal Communication and Behavior
- Genetic and phenotypic traits in livestock
- Genetic diversity and population structure
- Streptococcal Infections and Treatments
- Environmental and Cultural Studies in Latin America and Beyond
- Influenza Virus Research Studies
- Botulinum Toxin and Related Neurological Disorders
- Marine and coastal plant biology
- Cryospheric studies and observations
- Wildlife-Road Interactions and Conservation
- Turtle Biology and Conservation
- Plant-based Medicinal Research
- Rabies epidemiology and control
- Pleistocene-Era Hominins and Archaeology
Consejo Nacional de Investigaciones Científicas y Técnicas
2013-2025
National University of Comahue
2021-2024
National University of Tierra del Fuego
2013-2021
We describe the evolution of outbreak Highly Pathogenic Avian Influenza (HPAI) A(H5N1) in sea lions (Otaria flavescens) South America. At least 24,000 died Peru, Chile, Argentina, Uruguay, and Brazil between January–October 2023. The most plausible route infection is cohabiting with or foraging on infected birds. However, we urge a detailed evaluation actual source given that concomitant massive wild bird mortalities registered Pacific Ocean did not occur Atlantic Ocean.
Las aves marinas son uno de los grupos más amenazados a nivel global. Sin embargo, varias actividades humanas también proveen recursos que estas pueden utilizar en su beneficio. Se presenta una síntesis del conocimiento sobre el uso antrópicos por parte las se reproducen litoral patagónico argentino. investigaciones realizadas indican un total quince especies utilizan para alimentación y/o nidificación durante meses la temporada reproductiva. De diferentes alimento origen antrópico...
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Studies of the at‐sea distribution and trophic ecology penguins are essential to understand their role in broader marine food web. Magellanic Penguins Spheniscus magellanicus have a wide foraging behaviour varies across breeding sites between sexes, among others. In this study, we characterized areas, diving strategies relative level at Isla de los Estados, Argentina, during early chick‐rearing period. addition, quantified interannual, sexual individual variability those parameters three...
We describe an outbreak of Highly Pathogenic Avian Influenza (HPAI) A(H5N1) in sea lions (Otaria flavescens) South America. More than 24,000 died Peru, Chile, Argentina, and Uruguay between January September 2023. The most plausible route infection is cohabiting with or foraging on sick birds. However, there a need to clarify the source these given that massive wild bird mortalities registered Pacific Ocean do not appear have occurred Atlantic.
Understanding the spatial distribution of seabirds contributes to comprehending their ecological requirements and dispersion patterns. We studied at-sea female Southern Rockhopper Penguins (Eudyptes chrysocome (J.R. Forster, 1781)) at Isla de los Estados colony during early chick-rearing period. used a clustering analysis approach identify different groups according foraging trip (tracking diving data from GPS temperature depth loggers) diet (δ 15 N composition on blood samples)...
An outbreak of avian botulism type C occurred at the Kelp Gull (Larus dominicanus) colonies located Nahuel Huapi National Park and lake area in Argentina, end breeding season, during austral summer 2020. While conducting fieldwork, birds were observed with paralysis lower upper limbs, dead found a sitting down position no signs having been attacked. We collected blood tissue samples from eight Gulls one Ashy-headed Goose (Chloephaga poliocephala) for toxicological analysis. One sample...
The genetic identification of evolutionary significant units and information on their connectivity can be used to design effective management conservation plans for species concern. Despite having high dispersal capacity, several seabird show population structure due both abiotic biotic barriers gene flow. Kelp Gull is the most abundant gull in southern hemisphere. In Argentina it reproduces marine freshwater environments, with more than 100,000 breeding pairs following a metapopulation...
Abstract The use of stable isotopes sulfur (δ34S) to infer avian diets, foraging habitats, and movements is relatively uncommon, resulting in a lack information on patterns δ34S incorporation tissue. In controlled study Gentoo Penguins (Pygoscelis papua), we found that diet-tissue isotopic discrimination factors (Δ34Sdiet-tissue) differed among egg components feathers synthesized from common diet, ranging –0.4 –1.7‰. We also methodical choices such as lipid extraction prey tissue selection...