Results 161 to 170 of about 245,388 (317)

Occurrence of the neotropical moss Dicranella hilariana (Mont.) Mitt. in the Antarctic [PDF]

, 2000
Dicranella hilariana (Mont.) Mitt., a pan-neotropical moss species, is reported for the first time from the Antarctic botanical zone. It was found on geothermally heated ground near fumaroles on Visokoi, Candlemas and Bellingshausen Islands in the ...
Arts, Theo, Bednarek-Ochyra, Halina, Ochyra, Ryszard, Smith, Ronald I. Lewis   +3 more
core  

A global estimator of C and N isotope baselines for fresh waters

Methods in Ecology and Evolution, EarlyView.
Abstract Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers' isotope composition, so that isotope‐inferred trophic properties can be compared across ecosystems only after correction for baseline effects ...
Marie‐Elodie Perga, Stéphanie Bouletreau, Julien Cucherousset, Chris Harrod, Angus McIntosh, Julian D. Olden, Chloé Vagnon, Tim Jardine   +7 more
wiley   +1 more source

Neogene plant macrofossils from West Antarctica reveal persistence of Nothofagaceae forests into the early Miocene. [PDF]

Commun Earth Environ
Bastias-Silva J, Leppe M, Manriquez L, Trevisan C, Fox BRS, Magiera M, Wilson G, Tavazzani L, Chelle-Michou C, Gao L, Szymanowski D, Mansilla H, Silva C, Hervé F, Tapia C.   +14 more
europepmc   +2 more sources

Patagonia and Antarctica [PDF]

Science, 1907
openaire   +2 more sources

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

Archaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren, Stephen J. Lycett, Michelle R. Bebber, Alastair Key, Briggs Buchanan, Emma Finestone, Joseph Benson, Rebecca Biermann Gürbüz, Adela Cebeiro, Roman Garba, Anne Grunow, C. Owen Lovejoy, Danielle MacDonald, Erica Maletic, G. Logan Miller, Joseph D. Ortiz, Jonathan Paige, Justin Pargeter, Tomos Proffitt, Mary Ann Raghanti, Teal Riley, Jeffrey I. Rose, David M. Singer, Robert S. Walker   +23 more
wiley   +1 more source

Voyage to Antarctica [PDF]

CJEM, 2003
openaire   +2 more sources

Morphology and distribution of lakes under the Laurentide Ice Sheet: implications for ice flow dynamics

Boreas, EarlyView.
This study examines the distribution and morphology of lakes under the Laurentide Ice Sheet (LIS) to investigate relationships with ice flow velocity, bedrock and basal thermal regime. Palaeo‐ice streams and lobes were important components of the LIS, and properties of lakes in those regions are quantified at high resolution.
Sarah M. Principato, Carissa M. Mobley
wiley   +1 more source

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

Boreas, EarlyView.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti, Elizabeth J. Cassel, Timothy C. Bartholomaus, Michael G. Loso, Michael S. Christoffersen, John W. Holt   +5 more
wiley   +1 more source

Bees feeling the burn

Biological Reviews, EarlyView.
ABSTRACT Fire is a major form of environmental disturbance, and in recent years, due to anthropogenic climate change and anthropogenic land management, we are seeing increases in the frequency and intensity of fires. With bees being an important, diverse group of pollinators that is facing declines globally, understanding how they respond to fires is ...
Kit S. Prendergast, Joshua W. Campbell, Philip W. Bateman   +2 more
wiley   +1 more source

Cloud Properties and Boundary Layer Stability Above Southern Ocean Sea Ice and Coastal Antarctica [PDF]

Calum Lee Knight, Marc Mallet, Simon P. Alexander, Alexander Fraser, Alain Protat, Greg M. McFarquhar   +5 more
openalex   +1 more source