The 2007 Antarctic ozone hole
The 2007 Antarctic ozone hole is reviewed from a variety of perspectives, making use of various Australian data and analyses. The 2007 ozone hole was relatively modest, particularly in comparison […]
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Read more of: The 2007 Antarctic ozone hole
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Population assessments of gentoo penguins (Pygoscelis papua) breeding at an important Antarctic tourist site, Goudier Island, Port Lockroy, Palmer Archipelago, Antarctica
Read more of: Population assessments of gentoo penguins (Pygoscelis papua) breeding at an important Antarctic tourist site, Goudier Island, Port Lockroy, Palmer Archipelago, AntarcticaGoudier Island is located in the Palmer Archipelago, to the west of the Antarctic Peninsula; it is one of the most frequently visited tourist sites in Antarctica. A number of […]
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Linear tracks and restricted temperature ranges characterise penguin foraging pathways
Read more of: Linear tracks and restricted temperature ranges characterise penguin foraging pathwaysMarine predators are thought to follow sophisticated scale-dependent search strategies when seeking patchy and unpredictable prey. However, fine-scale information about these strategies has hitherto been difficult to obtain for diving […]
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Variability in atmospheric O2 and CO2 concentrations in the southern Pacific Ocean and their comparison with model estimates
Read more of: Variability in atmospheric O2 and CO2 concentrations in the southern Pacific Ocean and their comparison with model estimatesWe examine ship-based observations of atmospheric O-2 and CO2 in the southern Pacific Ocean made during two voyages: in February 2003 and in April 2004. We found, for the Austral […]
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Life hung by a thread: endurance of Antarctic fauna in glacial periods
Read more of: Life hung by a thread: endurance of Antarctic fauna in glacial periodsToday, Antarctica exhibits some of the harshest environmental conditions for life on Earth. During the last glacial period, Antarctic terrestrial and marine life was challenged by even more extreme environmental […]
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External parasite infestation depends on moult-frequency and age in Antarctic krill (Euphausia superba)
Read more of: External parasite infestation depends on moult-frequency and age in Antarctic krill (Euphausia superba)Levels of infestation by the suctorian Ephelota sp. were determined in Antarctic krill taken in the north-eastern region of the Scotia sea, close to the island of South Georgia. Individuals […]
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Post-breeding movement and activities of two streaked shearwaters in the north-western Pacific
Read more of: Post-breeding movement and activities of two streaked shearwaters in the north-western PacificWe used miniature light-level/immersion loggers (geolocators) to study the movements and behavior of two Streaked Shearwaters (Calonectris leucomelas) during their travel away from Japan, after the breeding season. During the […]
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Trophic modes of large Antarctic Foraminifera: roles of carnivory, omnivory, and detritivory
Read more of: Trophic modes of large Antarctic Foraminifera: roles of carnivory, omnivory, and detritivoryAstrammina rara, Crithionina delacai, and Notodendrodes hyalinosphaira are 3 of the largest and most abundant members of the foraminiferal assemblage at a shallow-water (28 to 32 m) site in Explorers […]
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Ontogenetic shifts in the trophic ecology of two alvinocaridid shrimp species at hydrothermal vents on the Mariana Arc, western Pacific Ocean
Read more of: Ontogenetic shifts in the trophic ecology of two alvinocaridid shrimp species at hydrothermal vents on the Mariana Arc, western Pacific OceanThe Mariana Arc of submarine volcanoes has recently been the site of an international, interdisciplinary study into the structure and function of the associated hydrothermal systems. A broad size range […]
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Six million years of glacial history recorded in volcanic lithofacies of the James Ross Island Volcanic Group, Antarctic Peninsula
Read more of: Six million years of glacial history recorded in volcanic lithofacies of the James Ross Island Volcanic Group, Antarctic PeninsulaBasaltic volcanism in the James Ross Island region has been persistent over the last 6 million years resulting in at least 50 mainly effusive eruptions that are preserved predominantly as […]
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Basaltic subglacial sheet-like sequences: evidence for two types with different implications for the inferred thickness of associated ice
Read more of: Basaltic subglacial sheet-like sequences: evidence for two types with different implications for the inferred thickness of associated iceSubglacially-erupted volcanic sequences provide proxies for a unique range of palaeo-ice parameters and they are potentially highly useful archives of palaeoenvironmental information, particularly for pre-Quaternary periods. They can thus be […]