12085 to 12096 of 13961 results
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Cretaceous patterns of floristic change in the Antarctic Peninsula
Read more of: Cretaceous patterns of floristic change in the Antarctic PeninsulaCretaceous radiation of angiosperms from low to high palaeolatitudes, coupled with the break-up of Gondwana, played a major role in establishing and maintaining biogeographic patterns across the southern hemisphere. Uncertainties […]
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Silicic volcanism: an undervalued component of large igneous provinces and volcanic rifted margins
Read more of: Silicic volcanism: an undervalued component of large igneous provinces and volcanic rifted marginsSilicic volcanic rocks are associated with most, if not all, continental flood basalt provinces and volcanic rifted margins, where they can form substantial parts of the eruptive stratigraphy and have […]
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Feeding increases MyoD and PCNA expression in myogenic progenitor cells of Notothenia coriiceps
Read more of: Feeding increases MyoD and PCNA expression in myogenic progenitor cells of Notothenia coriicepsOxygen consumption and ammonia excretion of the Antarctic fish Notothenia corikeps (18.4 cm L-F) increased respectively two and fourfold above fasting levels 24 h after feeding with a single meal […]
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Integrated environment-prey-predator interactions off South Georgia: implications for management of fisheries
Read more of: Integrated environment-prey-predator interactions off South Georgia: implications for management of fisheries1. The oceanography of the South Georgia region is principally that of the Southern Ocean rather than the South Atlantic. A combination of factors, including advection, local bathymetry and high […]
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Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins
Read more of: Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins1. Estimating food consumption is central to defining the ecological role of marine predators. This study developed an algorithm for synthesizing information about physiology, metabolism, growth, diet, life history and […]
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Interactions of water, ice nucleators and desiccation in invertebrate cold survival
Read more of: Interactions of water, ice nucleators and desiccation in invertebrate cold survivalFour case studies are used to examine the relationships of water, ice nucleators and desiccation in the cold survival of invertebrates and the viability of frozen plant material: the freeze […]
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The energetics of gentoo penguins, Pygoscelis papua, during the breeding season
Read more of: The energetics of gentoo penguins, Pygoscelis papua, during the breeding season1. The food consumption of an animal. both at the individual and the population level, is an essential component for assessing the impact of that animal on its ecosystem. As […]
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Branching dynamics of two species of arborescent demosponge: the effect of flow regime and bathymetry
Read more of: Branching dynamics of two species of arborescent demosponge: the effect of flow regime and bathymetryA series of measurements were taken from 50 random examples of the arborescent sponges Raspailia rainosa and Stelligera stuposa at a number of sites and depths at Lough Hyne, Co. […]
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Feather mercury levels in seabirds at South Georgia: influence of trophic position, sex and age
Read more of: Feather mercury levels in seabirds at South Georgia: influence of trophic position, sex and ageWe studied the mercury contamination of 13 species of seabirds breeding on Bird Island, South Georgia, in 1998. Total mercury concentrations in body feather samples of birds caught at their […]
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Effect of density on electrical conductivity of chemically laden polar ice
Read more of: Effect of density on electrical conductivity of chemically laden polar ice[1] Electrical conductivity measurements made using the dielectric profiling technique (DEP) are compared to chemical data from the top 350 m of the Dome C ice core in Antarctica. The […]