Results 51 to 60 of about 333,287 (241)

Carbon dioxide emissions of Antarctic tourism [PDF]

, 2011
The increase of tourism to the Antarctic continent may entail not only local but also global environmental impacts. These latter impacts, which are mainly caused by transport, have been generally ignored.
Lamers, M.A.J., Farreny, R., Machiel Lamers, Benayas, J., Bas Amelung, Ramon Farreny, Boada, M., Jordi Oliver-Solà, Javier Benayas, Oliver-Solà, J., Amelung, B., Xavier Gabarrell, Gabarrell, X., Rieradevall, J., Martí Boada, Joan Rieradevall   +15 more
core   +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

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

Oikos, EarlyView.
Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain.
Steven K. Schmidt, Jannetta N. Robinson, Adam J. Solon, James A. Bradley, Anastasia S. Hambi, Rachel R. Rubin, Charles Oliver, Ben W. Johnson, Mihai O. Cimpoiasu, Trevor P. Irons, Oliver Kuras, Anna Bergstrom, Pacifica Sommers   +12 more
wiley   +1 more source

Age, geographical distribution and taphonomy of an unusual occurrence of mummified crabeater seals on James Ross Island, Antarctica [PDF]

, 2008
An unusually dense collection of some 150 dead crabeater seals (Family Phocidae), in various stages of decay, occurs in the Brandy Bay hinterland, north-western James Ross Island, northern Antarctic Peninsula.
Nelson, Anna E., Moreton, S., Williams, M., Nelson, A.E., Smellie, John L., Smellie, J.L.   +5 more
core   +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

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

Heightened threats to small woodland caribou populations in Canada and key considerations for their persistence Menaces pesant sur les petites populations de caribou des bois au Canada et considérations essentielles à leur rétablissement

Wildlife Monographs, EarlyView.
Abstract Woodland caribou (Rangifer tarandus) are one of the most iconic wildlife species in Canada. These large ungulates depend on undisturbed, interconnected assemblages of mature and old‐growth conifer forests for survival, and exhibit life‐history traits typical of K‐selected species (i.e., low reproductive rates, long generation times, and slow ...
Anna M. Calvert, Mathieu Leblond, Esther Chang   +2 more
wiley   +1 more source

Improving the detailing of atmospheric processes modelling using the Polar WRF model: a case study of a heavy rainfall event at the Akademik Vernadsky station

Український антарктичний журнал, 2020
The Antarctic Peninsula region is of growing interest due to the regional climate change features and related atmospheric circulation patterns. The regional mesoscale atmospheric model Polar Weather Research and Forecasting (WRF) v4.1.1 was used in this ...
D. Pishniak, B. Beznoshchenko
doaj   +1 more source

Assessment of Contemporary Antarctic GIA Models Using High-Precision GPS Time Series

Remote Sensing, 2022
Past redistributions of the Earth’s mass resulting from the Earth’s viscoelastic response to the cycle of deglaciation and glaciation reflect the process known as glacial isostatic adjustment (GIA).
Wenhao Li, Fei Li, C.K. Shum, Chanfang Shu, Feng Ming, Shengkai Zhang, Qingchuan Zhang, Wei Chen   +7 more
doaj   +1 more source