Results 61 to 70 of about 249,137 (281)

Predicting water availability in the Antarctic dry valleys using GIS and remote sensing [PDF]

, 2009
Water is one of the most important ingredients for life on Earth. The presence or absence of biologically available water determines whether or not life will exist. In Antarctica most water exists as ice and is not available for sustaining life.
Brabyn, Lars, Stichbury, Glen
core   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

Characterization of Staphylococcus intermedius Group Isolates Associated with Animals from Antarctica and Emended Description of Staphylococcus delphini

Microorganisms, 2020
Members of the genus Staphylococcus are widespread in nature and occupy a variety of niches, however, staphylococcal colonization of animals in the Antarctic environment has not been adequately studied.
Veronika Vrbovská, Ivo Sedláček, Michal Zeman, Pavel Švec, Vojtěch Kovařovic, Ondrej Šedo, Monika Laichmanová, Jiří Doškař, Roman Pantůček   +8 more
doaj   +1 more source

Age and origin of enigmatic megaherbs from the subantarctic islands [PDF]

, 2007
Biogeographic relationships in the southern hemisphere have puzzled biologists for the last two centuries. Once joined to form the supercontinent Gondwana, Africa, Antarctica, Australia, New Zealand and South America are widely separated by the Pacific ...
Christopher Quinn, Ilse Breitwieser, Motomi Ito, Steven J. Wagstaff   +3 more
core   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Evaluation of four global reanalysis products using in-situ observations in the Amundsen Sea Embayment, Antarctica [PDF]

, 2016
The glaciers within the Amundsen Sea Embayment (ASE), West Antarctica, are amongst the most rapidly retreating in Antarctica. Meteorological reanalysis products are widely used to help understand and simulate the processes causing this retreat.
Holland, D.M., Jones, R.W., Lazzara, M.A., Orr, A., Renfrew, I.A., Webber, B.G.M.   +5 more
core   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Basal reflectance and melt rates across the Ross Ice Shelf, Antarctica, from grounding line to ice shelf front

Journal of Glaciology
We present a 1000 km transect of phase-sensitive radar measurements of ice thickness, basal reflection strength, basal melting and ice-column deformation across the Ross Ice Shelf (RIS).
Daniel Price, Joseph Snodgrass, Wolfgang Rack, Heather Purdie, Christina Hulbe, Christian T. Wild, Craig Stevens, Oliver J. Marsh, Michelle Ryan, Adrian McDonald, Kelly Gragg, Martin Forbes   +11 more
doaj   +1 more source

Spatial variability of climate and past atmospheric circulation patterns from central West Antarctic glaciochemistry [PDF]

, 1999
Atmospheric circulation patterns and the spatial variability of atmospheric chemistry and moisture transport in central West Antarctica are investigated using new 40 year long (1954–1994 A.D.) glaciochemical and accumulation rate records developed from ...
Mayewski, Paul A., Pittalwala, Iqbal I., Reusch, David B., Twickler, Mark S., Whitlow, Sallie I.   +4 more
core   +3 more sources

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.
Amelung, B., Benayas, J., Boada, M., Farreny, R., Gabarrell, X., Lamers, M.A.J., Oliver-Solà, J., Rieradevall, J.   +7 more
core   +2 more sources