Results 31 to 40 of about 4,621 (211)

Changes in glacier dynamics in the northern Antarctic Peninsula since 1985 [PDF]

The Cryosphere, 2018
The climatic conditions along the northern Antarctic Peninsula have shown significant changes within the last 50 years. Here we present a comprehensive analysis of temporally and spatially detailed observations of the changes in ice dynamics along ...
T. Seehaus, A. J. Cook, A. B. Silva, M. Braun   +3 more
doaj   +1 more source

Marine Macroalgae as a Safe Healthy Food While Meeting Food Security Challenges Arising From Climate Changes

Food Safety and Health, EarlyView.
Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley   +1 more source

Antarctic Kinorhyncha: Seven new species from the Antarctic Peninsula

European Journal of Taxonomy
With only three named species, Antarctica is the continent with the least explored kinorhynch biodiversity. The present contribution provides the most comprehensive study of Antarctic kinorhynchs collected along the coast of the West Antarctic Peninsula.
Martin V. Sørensen, Lara Macheriotou, Ulrike Braeckman, Craig R. Smith, Jeroen Ingels   +4 more
openaire   +5 more sources

Antarctic soil microbiomes encode structurally conserved and phylogenetically diverse beta‐lactamases

iMetaOmics, EarlyView.
An integrative metagenomic framework combining sequence, structural, and functional inference reveals a phylogenetically diverse and structurally conserved repertoire of putative beta‐lactamases across Antarctic soil microbiomes, with predominance of class A and subclass B3 enzymes and limited but detectable associations with mobile genetic elements ...
José Coche‐Miranda, Patricio Arros, Nicolás Canales, Camilo Berríos‐Pastén, Gastón Azziz, Rosalba Lagos, Julieta Orlando, Francisco P. Chávez, Andrés E. Marcoleta   +8 more
wiley   +1 more source

The Initial Opening of the Drake Passage Occurred During ca. 62‐59 Ma

Geophysical Research Letters
Although the Drake Passage has been considered a critical component of ocean circulation and climate, its initial opening age remains controversial due to the weak constraints on the paleoposition of the Antarctic Peninsula.
Liang Gao, Xiaoqian Guo, Junling Pei, Javier N. Gelfo, Xinwei Hu, Sha Li, Tian Jiang, Meinan Shi, Xuelian You, Fang Gu, Yunying Zhang, Zhen Sun, Zhiliang He, Ruoshuang Li, Yabo Tong, Zhenyu Yang, Yue Zhao   +16 more
doaj   +1 more source

Ostracod faunal and geochemical evidence for the impact of Hoxnian (MIS 11c) sea levels in eastern England

Journal of Quaternary Science, EarlyView.
ABSTRACT Marine isotope substage 11c (~426–366 ka) is widely regarded as the most recent Pleistocene interglacial that is broadly analogous to the Holocene. The timing and magnitude of sea‐level changes during MIS 11 have been much debated, particularly concerning whether sea levels were significantly higher than during the Holocene. Empirical evidence
Tom S. White, Jonathan A. Holmes, David J. Horne, David R. Bridgland   +3 more
wiley   +1 more source

New Cretaceous Paleomagnetic and Geochronologic Data From the Antarctic Peninsula: Constraints on the Pre‐Opening Tectonic Evolution of the Drake Passage

Geophysical Research Letters
Reconstructing oroclinal orogens along the Fuegian Andes‐northern Antarctic Peninsula provides critical constraints on the pre‐opening tectonic evolution of the Drake Passage, although such efforts are limited by a lack of reliable Cretaceous ...
Liang Gao, Xinwei Hu, Mengwei Zhang, Xiaoqian Guo, Junling Pei, Zhenyu Yang, Yue Zhao   +6 more
doaj   +1 more source

Have historical climate changes affected Gentoo penguin (Pygoscelis papua) populations in Antarctica?

PLoS ONE, 2014
The West Antarctic Peninsula (WAP) has been suffering an increase in its atmospheric temperature during the last 50 years, mainly associated with global warming.
Fabiola Peña M, Elie Poulin, Gisele P M Dantas, Daniel González-Acuña, Maria Virginia Petry, Juliana A Vianna   +5 more
doaj   +1 more source

A novel approach for in situ benthic habitat characterization

Limnology and Oceanography: Methods, EarlyView.
Abstract Habitat heterogeneity is a key driver of temporal and spatial variability of subtidal marine benthic biodiversity. However, this makes it a challenging environment in which to measure and quantify the factors driving biodiversity in a consistent manner.
Ryan J. W. Mathews, David K. A. Barnes, Simon A. Morley, Gareth Flint, Lloyd S. Peck   +4 more
wiley   +1 more source

Molecular Data Suggest Long-Term in Situ Antarctic Persistence Within Antarctica's Most Speciose Plant Genus, Schistidium

Frontiers in Ecology and Evolution, 2018
From glacial reconstructions it is clear that Antarctic terrestrial life must have been extremely limited throughout Quaternary glacial periods. In contrast, recent biological studies provide clear evidence for long-term in situ persistence throughout ...
Elisabeth M. Biersma, Elisabeth M. Biersma, Jennifer A. Jackson, Michael Stech, Michael Stech, Howard Griffiths, Katrin Linse, Peter Convey   +7 more
doaj   +1 more source