Results 51 to 60 of about 4,621 (211)

Tracking HPAIV H5 through a geographic survey of Antarctic seabird populations

Scientific Reports
An extensive survey for the detection of Highly Pathogenic Avian Influenza virus (HPAIV) H5 in seabird species is reported here. It was conducted between December 2023 and January 2024, in thirteen breeding sites spanning from the northeastern sector of ...
Fabiola León, Céline Le Bohec, Eduardo J. Pizarro, Loïcka Baille, Robin Cristofari, Aymeric Houstin, Daniel P. Zitterbart, Claudia Ulloa-Contreras, Gonzalo Barriga, Elie Poulin, Juliana A. Vianna   +10 more
doaj   +1 more source

30 years of Ukraine's polar research in Antarctica and the Ukrainian Antarctic Journal

Український антарктичний журнал
The article briefly presents the history of the Ukrainian Antarctic  Akademik Vernadsky station the beginning and the current state of Antarctic scientific research in Ukraine in the Antarctic Peninsula.
Vitaliy Starostenko
doaj   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

Integrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez, Santiago Hernández Del Pino, Esperanza Cerdeño, Manuel Hernández Fernández, Laura Domingo   +4 more
wiley   +1 more source

Geographical Variation in Thermal Adaptation of the Asiatic Toad (Bufo gargarizans)

Integrative Zoology, EarlyView.
Northern and southern populations of Bufo gargarizans exhibit coordinated divergence in thermal preference, resting metabolic rate, and TRPM4 temperature sensitivity along a climatic gradient. ABSTRACT Thermal adaptation in animals can manifest in multiple dimensions, yet few studies have integrated behavioral, physiological, and molecular perspectives
Longcheng Fan, Yonghua Wu
wiley   +1 more source

Age position, geodynamic specifics and paleomagnetism of intrusive complexes of the western coast of the Antarctic Peninsula

Геофизический журнал, 2013
New paleomagnetic and geochronological results on late Cretaceous-Paleogene intrusive and effusive complexes of the western part of the Antarctic Peninsula have been obtained.
V.G. Bakhmutov, D. P. Gladkochub, V. V. Shpyra   +2 more
doaj   +1 more source

Comprehensive and representative conservation planning for biodiversity of ice‐free Antarctica

Conservation Biology, EarlyView.
Abstract Antarctica is designated as a natural reserve devoted to peace and science, with Antarctic Specially Protected Areas (ASPAs) serving as the primary instrument for area‐based biodiversity protection. However, the existing ASPA network lacks the comprehensiveness and representativeness required under Annex V, Article 3(2), of the Madrid Protocol.
Wen Wen, Jasmine R. Lee, Justine D. Shaw, Kerrie A. Wilson   +3 more
wiley   +1 more source

Molluscan assemblages associated with Gigartina beds in the Strait of Magellan and the South Shetland Islands (Antarctica): a comparison of composition and abundance

Polar Research, 2017
In this paper we evaluated the composition and abundance of molluscs associated with beds of the red algae Gigartina, located in the South Shetland Islands (Antarctic Peninsula) and the Strait of Magellan (southern Chile).
Sebastián Rosenfeld, Cristian Aldea, Jaime Ojeda, Johanna Marambio, Mathias Hüne, Jesús S. Troncoso, Andrés Mansilla   +6 more
doaj   +1 more source

Geolocation reveals wintering sites of near‐extinct Caucasian breeding sea duck

Ibis, EarlyView.
We obtained 14 sets of full annual cycle geolocator tracks from 13 individual nesting female Velvet Scoter Melanitta fusca from the relict Caucasian population at their last remaining breeding site, Lake Tabatskuri, Georgia. Results showed that females wintered at widespread discrete localities in Ukraine, around the coasts of the Crimean Peninsula and
Nika Paposhvili, Heidi Maria Thomsen, Ib Krag Petersen, Anthony D. Fox   +3 more
wiley   +1 more source

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

Journal of Fish Biology, EarlyView.
Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu, Philip R. Hollyman, Jennifer J. Freer, M. L. Romero Martínez, José P. Queirós, Timothy Jones, Richard A. Phillips, José C. Xavier, Martin A. Collins   +8 more
wiley   +1 more source

Scotia Arc bryozoans from the LAMPOS expedition: a narrow bridge between two different faunas

Scientia Marina, 2005
The 78 bryozoan species collected by the German R/V “Polarstern” during the LAMPOS cruise in April 2002, encompassing the Scotia Arc archipelagos between Tierra del Fuego and the Antarctic Peninsula, were studied to discern the biogeographical patterns ...
Hugo I. Moyano G.
doaj   +1 more source