We present the first snow/ice chemistry and ice radar results ever collected from South
Georgia as part of an initial reconnaissance with the ultimate goal of assessing the feasibility of a
South Georgia ice core to reconstruct past climate in the South Atlantic. South Georgia is well situated
to...
Se realizó un estudio morfológico de palinomorfos fósiles provenientes de rocas sedimentarias terciarias de la península Fildes, isla Rey Jorge, archipiélago de las Shetland del Sur, Antártica y de dos localidades terciarias de Chile continental. El objetivo es la identificación y descripción de ...
The morphology of fossil pollen from sedimentary, tertiary rocks on Fildes Peninsula, King George Island, South Shetland Islands, Antarctica and from two locations on continental Chile was studied. The grains were identified, described and compared with current Chilean Proteaceae. Eight of the fo...
This paper analyzes the composition, abundance and biogeographical relationship of the benthic polychaetes
collected in three shallow subtidal locations (mouth of Cuervo and Condor rivers and Acantilada Bay) from Aysen Fjord,
AF, Chile (45ºS, 73ºW), and provides a comparison with data on shallow ...
Se analiza la composición,
abundancia y relaciones biogeográficas de poliquetos bentónicos recolectados en tres localidades someras (desembocadura
de los ríos Cuervo y Cóndor y Bahía Acantilada) del Seno Aysén, SA, Chile (45ºS, 73ºO), y se efectúa una comparación
con los poliquetos de la Antártid...
In this study we demonstrate how energy andmass fluxes vary in space and time for Grey
and Tyndall glaciers at the Southern Patagonia Icefield (SPI). Despite the overall glacier
retreat of most Patagonian glaciers, a recent increase in mass loss has been observed,
but individual glaciers respond ...
Se individualizan y analizan 26 obras de autores nacionales relacionadas con la Antártica chilena entre 1939 y 1959. Esbozándose las principales características temáticas y metodológicas de estos trabajos literarios, jurídicos e históricos, se enfatizan algunos hechos internacionales y la defensa...
Observations show that glaciers around the world are in retreat and losing mass.
Internationally coordinated for over a century, glacier monitoring activities provide an unprecedented
dataset of glacier observations from ground, air and space. Glacier studies generally select specific parts
of th...
Sponges belonging to genus Mycale are common and widely distributed across the
oceans and represent a significant component of benthic communities in term of their
biomass, which in many species is largely composed by bacteria. However, the microbial
communities associated with Mycale species inh...
The diet of grey-headed albatrosses at Diego Ramírez was analysed and compared to that of the
sympatric black-browed albatross. Diet composition was inferred from an analysis of prey hard parts present
in 103 chick regurgitates obtained during breeding seasons 2000, 2001 and 2002. The squid Marti...
Fores t environments have continuously existed in Antarctica since the late Paleozoic and only disappeared from this
continent since the Neogene. Nevertheless, the structure of these forests underwent substantial evolutionary changes.
During the late Cretaceous, forests dominated by conifers and ...
Se sabe que al menos desde fi nes del Paleozoico ambientes boscosos habrían existido en la Antártica y habrían
desaparecido de ella solo a fi nes del Terciario. Sin embargo, la estructura no ha sido la misma, evolucionando desde
un bosque dominado por coníferas y pteridófi tas durante el Cretácic...
Background: Confined within the freezing Southern Ocean, the Antarctic notothenioids have evolved to become both cold adapted and cold specialized. A marked signature of cold specialization is an apparent loss of the cellular heat shock response (HSR). As the HSR has been examined in very few not...
