Results 21 to 30 of about 249,137 (281)

Four new species of Parvoplaca ( Teloschistales , Ascomycota )

open access: yesPlant and Fungal Systematics, 2023
The genus Parvoplaca is extended with four new species: P. candanii from Antarctica, P. lamprocarpa from Alaska, and P. macroborealis and P. tenebrosa from Oregon. Collections identified as P.
Ulf Arup   +2 more
doaj   +1 more source

Joint inversion estimate of regional glacial isostatic adjustment in Antarctica considering a lateral varying Earth structure (ESA STSE Project REGINA) [PDF]

open access: yes, 2017
A major uncertainty in determining the mass balance of the Antarctic ice sheet from measurements of satellite gravimetry, and to a lesser extent satellite altimetry, is the poorly known correction for the ongoing deformation of the solid Earth caused by
Bamber, Jonathan L.   +11 more
core   +3 more sources

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+13 more sources

Texture features of multi-year fresh ice in the Transcription bay, East Antarctica, in the period of summer melting

open access: yesЛëд и снег, 2022
The paper presents new data on the texture and density of a unique natural object – perennial fresh landfast ice in the Gulf of Transcription (East Antarctica), obtained in January 2020.
V. V. Kharitonov, V. A. Borodkin
doaj   +1 more source

New genus, three new species and new records of Herpyllobiidae Hansen, 1892 (Crustacea, Copepoda) parasites of polychaetes from Antarctica [PDF]

open access: yes, 2006
During the Antarctic Polarstern cruises ANT XIX/3 (ANDEEP-I), XIX/5 (LAMPOS), and XXI/2 (BENDEX) new material of symbiotic copepods associated with polynoid polychaetes was collected.
Bresciani, José   +2 more
core   +3 more sources

Diversity of Lecidea (Lecideaceae, Ascomycota) species revealed by molecular data and morphological characters [PDF]

open access: yes, 2002
The diversity of lichens, especially crustose species, in continental Antarctica is still poorly known. To overcome difficulties with the morphology based species delimitations in these groups, we employed molecular data (nuclear ITS and mitochondrial ...
Branson, K   +20 more
core   +4 more sources

Summertime tintinnids in surface water of the Weddell and Cosmonaut seas: community structure and relationships with different water masses

open access: yesPolar Research, 2023
Tintinnids (Ciliophora) are important microzooplankton grazers. In the Southern Ocean, they are found in the Antarctic Zone, Polar Front and Subantarctic Zone.
Jingyuan Li   +6 more
doaj   +1 more source

Twenty-four buried ice masses remotely mapped in Transantarctic Mountains, Antarctica

open access: yesGeocarto International, 2023
Glacial ice contains information on paleoclimate, but typically is less than 1 Myrs old because glaciers continuously flow and melt. A recently discovered buried ice mass in Antarctica is dated to 3-5 Myrs and highlights the potential for long ...
Jaakko Putkonen, Taufique H. Mahmood
doaj   +1 more source

Psychological adaptation to extreme environments: Antarctica as a space analogue [PDF]

open access: yes, 2018
Space analogues are settings where particular conditions can be reproduced to study physiological and psychological variables experienced in space. Antarctica is one of the most reliable analogues to assess the effects of isolation, confinement, light ...
Barbarito, Marta   +5 more
core   +1 more source

Population features of Boeckella poppei in Lake Wujka, King George Island

open access: yesУкраїнський антарктичний журнал, 2021
The maritime Antarctic is one of the most interesting regions on planet where climate change can be observed to impact all components of its poor flora. Boeckella poppei is common in the maritime and continental Antarctic species of the copepod.
V. Trokhymets   +2 more
doaj   +1 more source

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