6733 to 6744 of 13949 results
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Production of soma and gonad in maturing female Illex argentinus (Mollusca: Cephalopoda)
Read more of: Production of soma and gonad in maturing female Illex argentinus (Mollusca: Cephalopoda)Samples of male Illex argentinus were taken from the catch of a Japanese squid jigging vessel on the Patagonian Shelf during March 1986 and an analysis was carried out on […]
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Trace splitting of whistlers: A signature of fine structure or mode splitting in magnetospheric ducts?
Read more of: Trace splitting of whistlers: A signature of fine structure or mode splitting in magnetospheric ducts?Previously, we reported on the discovery of fine structure in whistler data received on the ground at Halley, Antarctica. This structure was not apparent in conventional spectral analysis but was […]
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Rock weathering, soil development and colonization under a changing climate
Read more of: Rock weathering, soil development and colonization under a changing climateAntarctic continental soils are arid, saline and lacking in organic matter, whereas maritime soils, in a wetter environment, range from structureless lithosols to frozen peat. Two important factors in the […]
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Comparison of the cold hardiness of two larval Lepidoptera (Noctuidae)
Read more of: Comparison of the cold hardiness of two larval Lepidoptera (Noctuidae)Diapause larvae of the European corn borer (Ostrinia nubilalis (Hubn.)) and the related Mediterranean noctuid Sesamia cretica Led. possess sufficient supercooling ability to avoid freezing over their normal environmental temperature […]
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Known, new and probable Snow Petrel breeding locations in the Ross Dependency and Marie Byrd Land
Read more of: Known, new and probable Snow Petrel breeding locations in the Ross Dependency and Marie Byrd LandSnow Petrels (Pagodroma nivea) breed circurnpolarly in Antarctica. Watson et al. (1971), Harper et al. (1984) and Marchant & Higgins (1990) list breeding sites in the Ross Dependency (160°E-150°W) and […]
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Reproductive biology of caridean decapods from the Weddell Sea
Read more of: Reproductive biology of caridean decapods from the Weddell SeaData on reproductive biology are presented for five benthic caridean shrimps from the high Antarctic (Chorismus antarcticus, Notocrangon antarcticus, Nematocarcinus lanceopes, Lebbeus antarcticus and Eualus kinzeri). The first three species […]
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Precipitation nitrogen at maritime Signy Island and continental Cape Bird, Antarctica
Read more of: Precipitation nitrogen at maritime Signy Island and continental Cape Bird, AntarcticaThe mineral nitrogen (NH4-N + NO3-N) in precipitation occurring at continental and maritime Antarctic sites has been determined. Precipitation at sites remote from animal activity contained much less mineral N […]
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Retention of precipitation nitrogen by Antarctic mosses, lichens and fellfield soils
Read more of: Retention of precipitation nitrogen by Antarctic mosses, lichens and fellfield soilsRetention of mineral elements in precipitation by mosses and lichens involving ion exchange and chelation mechanisms is a source of nutrients for these biota growing on rocks and nutrient poor […]
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Glacier fluctuations on South Georgia during the 1970s and early 1980s
Read more of: Glacier fluctuations on South Georgia during the 1970s and early 1980sSouth Georgia is a highly glacierized island with a range of glacier types including corrie, valley and tidewater ice bodies. Glaciologically, it occupies a strategic location between South America and […]
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Dynamics of plasma nutrients and metabolites in moulting macaroni (Eud yptes chrysolophus) and gentoo (Pygoscelis papua) penguins
Read more of: Dynamics of plasma nutrients and metabolites in moulting macaroni (Eud yptes chrysolophus) and gentoo (Pygoscelis papua) penguins1.1. Dynamics of plasma nutrients and metabolites in moulting macaroni (Eudyptes chrysolophus) and gentoo (Pygoscelis papua) penguins were studied.2.2. The late moult macaroni and gentoo penguins had significantly elevated levels […]