Article
Ornithology
Grace Bouker, Arden Tyree, Analia San Martin, Amira Salom, Samanta Dodino, Ulises Balza
Summary: The study in Ushuaia, Argentina, found an increase in scavenging raptors foraging in the garbage dump during early winter, with causes of mortality including shooting, plastic ingestion, and other factors. Surprisingly, even control birds not associated with the dump showed signs of microplastic ingestion. Raptors at the garbage dump could potentially serve as sentinel species for environmental monitoring programs.
JOURNAL OF RAPTOR RESEARCH
(2021)
Article
Biodiversity Conservation
Arona Emiliano, Schiavini Adrian
Summary: In Ushuaia city, Argentina, the number of free-roaming dogs was estimated using a photographic capture-recapture methodology. The study also examined factors influencing the spatial distribution of these dogs and their welfare status. The results showed a high number of free-roaming dogs in the city, with the behavior of owners and geographical location being the main drivers for their presence.
Article
Ecology
Matthew Joseph Ruggirello, Gimena Bustamante, Peter Z. Fule, Rosina Soler
Summary: Large, severe wildfires have become common in the forests of Tierra del Fuego, southern Argentina, due to increased ignition sources and warmer, drier periods. The dominant tree species, Nothofagus antarctica, shows some resilience to wildfire through prolific resprouting. However, post-fire regeneration densities are lower in burned areas compared to unburned controls, and full recovery of the forests has not occurred even 80 years after a major fire.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Maria Granitto, Soledad Diodato, Patricia Rodriguez
Summary: The rapid and unorganized population growth in Ushuaia, Argentina has negatively impacted the water quality of the city's three main water courses due to urban expansion and lack of infrastructure for services like sewage treatment. The Fuegian Water Quality Index (F_WQI) developed as a monitoring tool, revealed very poor water quality in areas with high urbanization and wastewater discharges, while indicating very good water quality in less urbanized areas. Including Periphyton Chlorophyll-a in water quality indices proved to increase the sensitivity of monitoring efforts in temperate rivers and streams.
ECOLOGICAL INDICATORS
(2021)
Article
Geosciences, Multidisciplinary
Facundo Fuentes
Summary: Regional cross-sections reveal the complex geometry and deformation mechanisms of the Tierra del Fuego fold-thrust belt. The dominant mechanisms include a duplex thrust system in the Cretaceous and detachment and faulted detachment anticlines in the Cenozoic. Fault-bend and fault-propagation folds are also present, while basement fault reactivation is limited. The region has potential for hydrocarbon exploration, with untested large anticlines preserving Cenozoic reservoirs.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2023)
Article
Biodiversity Conservation
Dante Francomano, Mayra I. Rodriguez Gonzalez, Alejandro E. J. Valenzuela, Zhao Ma, Andrea N. Raya Rey, Christopher B. Anderson, Bryan C. Pijanowski
Summary: This study aims to investigate the relationship between soundscape perception and nature relatedness, as well as the importance of soundscape in nature experiences. The findings show that hearing is of secondary importance to vision in experiences of nature, and nature relatedness is positively correlated with the valuation of more natural soundscapes.
JOURNAL FOR NATURE CONSERVATION
(2022)
Article
Geosciences, Multidisciplinary
Guisella Gacitua, Christoph Schneider, Jorge Arigony, Inti Gonzalez, Ricardo Jana, Gino Casassa
Summary: The Schiaparelli Glacier in the Cordillera Darwin of Tierra del Fuego, Chile, is one of the largest glaciers in the region. In April 2016, the first successful ice thickness measurements were conducted, revealing a valley-shaped bedrock with a maximum ice thickness of 324 meters, indicating significant glacier-related over-deepening in the local topography.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Microbiology
Ximena Blanco Crivelli, Maria Paz Bonino, Mariana Soledad Sanin, Juan Facundo Petrina, Vilma Noelia Disalvo, Rosana Massa, Elizabeth Miliwebsky, Armando Navarro, Isabel Chinen, Adriana Bentancor
Summary: Diarrheagenic Escherichia coli (DEC) pathovars have a significant impact on childhood health, with the highest incidence of hemolytic uremic syndrome (HUS) in children found in the southern region of Argentina. A study conducted in Tierra del Fuego, Argentina, revealed a notable prevalence of STEC, EPEC, and EAEC in slaughtered lambs, indicating the importance of ovine as carriers of these pathogens in the region. Resistance to conventional antibiotics was observed in a considerable number of the isolated pathogens.
Article
Plant Sciences
Maria A. Gandolfo, Maria C. Zamaloa
Summary: This study examines leaf herbivory records in the Miocene geological strata from Patagonia, Argentina, comparing them with other Miocene floras and identifying various insect damage types present. Variations in damage types and intensity among different paleofloras are observed, with margin and hole feeding as well as skeletonization being common types of damage.
INTERNATIONAL JOURNAL OF PLANT SCIENCES
(2021)
Article
Forestry
Matthew Joseph Ruggirello, Gimena N. Bustamante, Rosina M. Soler
Summary: Wildfires on Tierra del Fuego are becoming more frequent due to the increasing human population and have a significant impact on the regeneration of lenga forests. The absence of lenga regeneration in burned areas poses a threat to the ecosystem and calls for active restoration measures. The study emphasizes the importance of evaluating the impact of forest fires on native species and the need for sustainable forest management.
Article
Social Sciences, Interdisciplinary
Alejandro Huertas Herrera, Monica Toro Manriquez, Rosina Soler, Cristian Lorenzo, Maria Vanessa Lencinas, Guillermo Martinez Pastur
Summary: This study analyzed how visitors valued a socio-ecological system using social media data, finding that visitors placed more value on biophysical and cultural attributes compared to local biodiversity. The study highlights the need to explore alternative methods for assessing socio-ecological values and to include socio-ecological attributes as key indicators for conservation solutions.
SOCIAL INDICATORS RESEARCH
(2021)
Article
Geochemistry & Geophysics
Sandrine Roy, Riccardo Vassallo, Joseph Martinod, Christian Sue
Summary: The Magallanes-Fagnano Fault is an active strike-slip fault separating the South American and Scotia plates. Our study reveals evidence of at least six earthquakes in the past 10,000 years, with an average recurrence interval of 1080 years in the last 2000 years. However, we also find that irregular seismic cycles may result in paired earthquakes occurring within one or two centuries.
Article
Genetics & Heredity
Pedro Rodrigues, Irina Florencia Velazquez, Julyana Ribeiro, Filipa Simao, Antonio Amorim, Elizeu F. Carvalho, Claudio Marcelo Bravi, Nestor Guillermo Basso, Luciano Esteban Real, Claudio Galli, Andrea del Carmen Gonzalez, Ariana Gamulin, Romina Saldutti, Maria Laura Parolin, Veronica Gomes, Leonor Gusmao
Summary: Tierra del Fuego, like other South American regions, has a mixed population with Native American, European, and African ancestry. The study found high haplotype and haplogroup diversities in the paternal lineages of the population, with a high frequency of Eurasian haplogroups. Comparative analysis revealed similarities with other Latin American populations and a close proximity to Italian and Iberian populations.
Article
Zoology
Diego Leonardo Carpintero, Sebastian de Biase
Summary: This paper describes a new species, Hyperbius joceliae, from the north of Tierra del Fuego Island, comparing its diagnostic characters with the only known species of the genus. The distributional patterns of South American Acanthosomatidae and speciation of the Patagonian fauna of this family are also briefly discussed in the study.
Article
Biodiversity Conservation
A. A. San Martin, M. N. Paso Viola, L. Riccialdelli, M. A. Torres, N. A. Dellabianca
Summary: Fin whales are globally distributed in oceanic waters but rarely found in coastal areas with wide and shallow continental platforms like the western South Atlantic Ocean. The first confirmed stranding of a B. physalus off the Atlantic coast of Tierra del Fuego was reported in July 2016. The physically immature female specimen was found fresh with minimal injuries or signs of entanglement, yet the cause of death could not be accurately determined despite the necropsy findings. Insufficient fat deposits were noted, indicating poor physical condition which may have led to the stranding and subsequent death.
