8953 to 8964 of 13722 results
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Identification and correlation of distal tephra layers in deep-sea sediment cores, Scotia Sea, Antarctica
Read more of: Identification and correlation of distal tephra layers in deep-sea sediment cores, Scotia Sea, AntarcticaQuaternary deposits in six sediment cores from the Scotia Sea, Antarctica, were examined for the presence of volcanic ash layers. The cores were recovered from water depths of 3369-4025 m. […]
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Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods
Read more of: Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropodsThe existence of seasonal changes in concentrations of water-soluble carbohydrates in arthropods (both freezing-tolerant and intolerant species) from Signy Island was demonstrated. Seasonal patterns of variation, imposed by seasonality of […]
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Spiess Ridge: An axial high on the slow spreading Southwest Indian Ridge
Read more of: Spiess Ridge: An axial high on the slow spreading Southwest Indian RidgeWe report recent mapping of Spiess Ridge with the Hawaii-MR1 sidescan sonar. Spiess Ridge is an unusual elongate 90 by 50 km volcanic feature on the slow spreading Southwest Indian […]
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The present configuration of the Bouvet triple junction
Read more of: The present configuration of the Bouvet triple junctionNew Hawaii-MR1 sonar data show that the southernmost Mid-Atlantic Ridge joins the South American–Antarctic Ridge by an obliquely opening rift and overlaps Spiess Ridge, the westernmost segment of the Southwest […]
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Sulfur-containing species (sulfate and methanesulfonate) in coastal Antarctic aerosol and precipitation
Read more of: Sulfur-containing species (sulfate and methanesulfonate) in coastal Antarctic aerosol and precipitationThe concentrations of sulfur-containing species (sulfate and methanesulfonate (MSA)) of aerosols collected at three coastal Antarctic sites (Neumayer, Dumont d’Urville, and Halley) have been studied in order to investigate the […]
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Reproductive patterns in the Antarctic brachiopod Liothyrella uva
Read more of: Reproductive patterns in the Antarctic brachiopod Liothyrella uvaThe reproductive cycle of the Antarctic articulate brachiopod Liothyrella uva (Broderip, 1833) is described from monthly samples collected between September 1985 and July 1987 from a population at Signy Island, […]
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Eye structure and amphibious foraging in albatrosses
Read more of: Eye structure and amphibious foraging in albatrossesAnterior eye structure and retinal visual fields were determined in grey–headed and black–browed albatrosses, Diomedea melanophris and D. chrysostoma (Procellariiformes, Diomedeidae), using keratometry and an ophthalmoscopic reflex technique. Results for […]
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Aerial transport of keratinaceous substrate and distribution of the fungus Geomyces pannorum in Antarctic soils
Read more of: Aerial transport of keratinaceous substrate and distribution of the fungus Geomyces pannorum in Antarctic soilsAerobiological sampling was conducted year-round at three sites on Signy Island, maritime Antarctic, between December 1992 and January 1994, and during the summer at a fourth coastal site. The concentrations […]
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Interpreting recent accumulation records through an understanding of the regional synoptic climatology: an example from the southern Antarctic Peninsula
Read more of: Interpreting recent accumulation records through an understanding of the regional synoptic climatology: an example from the southern Antarctic PeninsulaIn this study we correlate temporal features within the electrical conductivity (acidity) traces of four shallow firn cores obtained from the southern Antarctic Peninsula to synoptic-scale variations in the regional […]
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Importance of accounting for phylogenetic dependence in multi-species mark–recapture studies
Read more of: Importance of accounting for phylogenetic dependence in multi-species mark–recapture studiesSpecies in comparative demography studies often have a common phylogenetic or evolutionary ancestry and hence, they cannot fully be treated as independent samples in the statistical analysis. Although the serious […]