Results 1 to 10 of about 3,960,518 (210)

PCBs in Chinstrap Penguins from Deception Island (South Shetland Islands, Antarctica) [PDF]

Toxics
The aim of this study was to evaluate the concentration of polychlorinated biphenyls (PCBs) in chinstrap penguins (Pygoscelis antarctica) and krill (Euphausia superba) from Deception Island (South Shetland Islands, Antarctica) to provide additional data ...
Miguel Motas, Silvia Jerez-Rodríguez, José Manuel Veiga-del-Baño, Juan José Ramos, José Oliva, Miguel Ángel Cámara, Pedro Andreo-Martínez, Simonetta Corsolini   +7 more
doaj   +6 more sources

Phaeosphaeria deschampsii J. Putzke & A.B.Pereira (Ascomycota, Fungi) causing whitening in Deschampsia antarctica Desv. (Poaceae) in the South Shetland Islands [PDF]

Check List, 2021
Phaeosphaeria deschampsii was described from dead leaves of Deschampsia antarctica (Antarctic Grass). We surveyed other islands of the South Shetland archipelago, Antarctica, and also found Arctic Grass whitening, the disease associated with this fungus,
Antonio Batista Pereira, Jorge Renato Pinheiro Velloso, Jair Putzke   +2 more
doaj   +4 more sources

Predicted habitat and areas of ecological significance shifts of top predators in the South Shetland Islands under climate changes

Frontiers in Marine Science
The South Shetland Islands, a critical area for primary productivity within the Southern Ocean, are significantly affected by global climate change. Seabirds and marine mammals, highly sensitive to ecological changes, are considered sentinel species ...
Yufei Dai, Yufei Dai, Denghui Yan, Yu Liu, Yu Liu, Mingding Zhong, Minhao Gao, Hao Cheng, Wenhong Deng, Fuxing Wu   +9 more
doaj   +3 more sources

Using Fixed-Wing UAV for Detecting and Mapping the Distribution and Abundance of Penguins on the South Shetlands Islands, Antarctica

Drones, 2019
Antarctic marine ecosystems undergo enormous changes, presumably due to climate change and fishery. Unmanned aerial vehicles (UAVs) have an unprecedented potential for measuring these changes by mapping indicator species such as penguins even in remote ...
Christian Pfeifer, Andres Barbosa, Osama Mustafa, Hans-Ulrich Peter, Marie-Charlott Rümmler, Alexander Brenning   +5 more
doaj   +3 more sources

Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions [PDF]

ZooKeys, 2021
This study provides the summary of the reports of the geographical distribution in the Maritime Antarctic and sub-Antarctic regions of Parochlus steinenii (Gercke, 1889) (Diptera, Chironomidae), the only flying insect occurring naturally in the Antarctic
Melisa Gañan, Tamara Contador, Javier Rendoll, Felipe Simoes, Carolina Pérez, Gillian Graham, Simón Castillo, James Kennedy, Peter Convey   +8 more
doaj   +3 more sources

The South Shetland Islands, Antarctica: Lithostratigraphy and geological map

Frontiers in Earth Science, 2023
Over the last few decades, numerous geological studies have been carried out in the South Shetland Islands, which have greatly contributed to a better understanding of its geological evolution.
Joaquín Bastías, Joaquín Bastías, Joaquín Bastías, David Chew, Camila Villanueva, Teal Riley, Joseline Manfroi, Cristine Trevisan, Marcelo Leppe, Paula Castillo, Fernando Poblete, Dieter Tetzner, Gregory Giuliani, Bastián López, Hong Chen, Guang-Gao Zheng, Yue Zhao, Liang Gao, Anna Rauch, Ricardo Jaña   +19 more
doaj   +1 more source

Large-scale and regional climatic influences on surface temperature and precipitation in the South Shetland Islands, northern Antarctic Peninsula [PDF]

Anais da Academia Brasileira de Ciências, 2023
Using data from SCAR observations, ERA5 reanalysis, and regional climate model simulations (RACMO), we examined the influence of large- and regional-scale climate forcing on temperature and precipitation variations in the South Shetland Islands (SSI ...
CHRISTIAN TORRES, DENIZ BOZKURT, JORGE ARIGONY-NETO   +2 more
doaj   +1 more source

Elemental and mineralogical characterization of marine sediments and their relationship to sedimentary and oceanographic processes in Central Bransfield Basin [PDF]

Anais da Academia Brasileira de Ciências, 2023
This work consists of the sedimentological, mineralogical, and geochemical characterization of eight marine sediment cores collected in the Central Bransfield Basin, along a transect between the South Shetland Islands to the Antarctic Peninsula and its ...
JANAYNA CYNTHIA M. GALVÃO, ARTHUR AYRES NETO, ROSEMARY VIEIRA, JEFFERSON C. SIMÕES   +3 more
doaj   +1 more source

Analysis of GNSS Time Series Recorded on South Shetland Island and Antarctic Peninsula during the Geodynamic Activity in 2020 of the Orca Underwater Volcano (Brandfield Sea Rift, Antarctica)

Engineering Proceedings, 2023
The region defined by the South Shetland Islands, Bransfield Sea, and Antarctic Peninsula has complex geodynamic activity resulting from the active subduction process of the Phoenix Plate under the Antarctic Plate.
Belén Rosado, Alejandro Pérez-Peña, Paola Barba, Javier Ramírez-Zelaya, Enrique Carmona, Rosa Martín, Vanessa Jiménez, Jorge Gárate, Amós de Gil, Manuel Berrocoso   +9 more
doaj   +1 more source

Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei

Frontiers in Ecology and Evolution, 2022
Two main hypotheses have been proposed to explain the contemporary distribution of Antarctic terrestrial biota. We assess whether the current distribution of maritime Antarctic populations of the freshwater copepod Boeckella poppei is the result of (1) a
Claudia S. Maturana, Claudia S. Maturana, Claudia S. Maturana, Claudia S. Maturana, Elisabeth M. Biersma, Elisabeth M. Biersma, Angie Díaz, Angie Díaz, Angie Díaz, Claudio González-Wevar, Claudio González-Wevar, Claudio González-Wevar, Tamara Contador, Tamara Contador, Tamara Contador, Peter Convey, Peter Convey, Peter Convey, Peter Convey, Jennifer A. Jackson, Elie Poulin, Elie Poulin   +21 more
doaj   +1 more source