9217 to 9228 of 13980 results
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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 […]
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Southern hemisphere circulation anomalies associated with extreme Antarctic peninsula winter temperatures
Read more of: Southern hemisphere circulation anomalies associated with extreme Antarctic peninsula winter temperaturesThe Southern Hemisphere reveals markedly different circulation patterns associated with extreme warm and cold Antarctic Peninsula (AP) winter temperatures. Warm winters are associated with negative 500 hPa height anomalies in […]
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Tracing the Indian Ocean mantle domain through time: isotopic results from old west Indian, east Tethyan, and south Pacific seafloor
Read more of: Tracing the Indian Ocean mantle domain through time: isotopic results from old west Indian, east Tethyan, and south Pacific seafloorThe isotopic difference between modern Indian Ocean and Pacific or North Atlantic Ocean ridge mantle (e.g. variably lower 206Pb/204Pb for a given εNd and 208Pb/204Pb) could reflect processes that occurred […]
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Assessment of the benefits of weather forecasting for British Antarctic Survey operations
Read more of: Assessment of the benefits of weather forecasting for British Antarctic Survey operationsThe British Antarctic Survey operates both aircraft and ships in the Antarctic. High quality weather forecasts can have a large impact on safe operations at high southern latitudes. This paper […]
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Biogeography of limno-terrestrial Tardigrada, with particular reference to the Antarctic fauna
Read more of: Biogeography of limno-terrestrial Tardigrada, with particular reference to the Antarctic faunaThe Tardigrada is a cosmopolitan phylum of pre-Pangaean origin, yet tardigrade families and genera show distinct biogeographic components isolated by two major geological events. Separate Laurasian and Gondwanan familial clusters […]
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Tectonic implications of fore-arc magmatism and generation of high-magnesian andesites: Alexander Island, Antarctica
Read more of: Tectonic implications of fore-arc magmatism and generation of high-magnesian andesites: Alexander Island, AntarcticaAlexander Island, situated off the west coast of the Antarctic Peninsula, contains a suite of Late Cretaceous to Early Tertiary subduction-related magmatic rocks. The rocks occupy a fore-arc position 100–200 […]
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Late Cretaceous to early Tertiary subduction history of the Antarctic Peninsula
Read more of: Late Cretaceous to early Tertiary subduction history of the Antarctic PeninsulaQuantitative estimates of the rates and azimuths of Phoenix plate convergence with the Antarctic Peninsula have been derived from plate rotation calculations for two periods in the Late Cretaceous and […]