State of the Antarctic and Southern Ocean climate system
This paper reviews developments in our understanding of the state of the Antarctic and Southern Ocean climate, and its relation to the global climate system over the last few millennia. […]
13309 to 13320 of 14011 results
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Read more of: State of the Antarctic and Southern Ocean climate system
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Widespread association between the ericoid mycorrhizal fungus Rhizoscyphus ericae and a leafy liverwort in the maritime and sub-Antarctic
Read more of: Widespread association between the ericoid mycorrhizal fungus Rhizoscyphus ericae and a leafy liverwort in the maritime and sub-AntarcticA recent study identified a fungal isolate from the Antarctic leafy liverwort Cephaloziella varians as the ericoid mycorrhizal associate Rhizoscyphus ericae. However, nothing is known about the wider Antarctic distribution […]
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Patterns of bacterial diversity across a range of Antarctic terrestrial habitats
Read more of: Patterns of bacterial diversity across a range of Antarctic terrestrial habitatsAlthough soil-borne bacteria represent the world’s greatest source of biological diversity, it is not well understood whether extreme environmental conditions, such as those found in Antarctic habitats, result in reduced […]
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Metabolic recovery of the Antarctic liverwort Cephaloziella varians during spring snowmelt
Read more of: Metabolic recovery of the Antarctic liverwort Cephaloziella varians during spring snowmeltWe measured the responses of pigments and chlorophyll a fluorescence parameters of the Antarctic leafy liverwort Cephaloziella varians to snowmelt during austral spring 2005 at Rothera Point on the western […]
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Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-Antarctic
Read more of: Root-fungal associations of Colobanthus quitensis and Deschampsia antarctica in the maritime and sub-AntarcticThe two native Antarctic vascular plant species, Colobanthus quitensis and Deschampsia antarctica, were sampled from 15 points along a 1480 km latitudinal transect from South Georgia (54°S, 36°W) through to […]
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Snow mould caused by a Pythium sp.: a potential vascular plant pathogen in the maritime Antarctic.
Read more of: Snow mould caused by a Pythium sp.: a potential vascular plant pathogen in the maritime Antarctic.The pathogenicity of an isolate of a Pythium species from Signy Island in the South Orkney Islands was tested against the Antarctic hairgrass Deschampsia antarctica. The isolate was found to […]
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Filamentous ascomycetes inhabiting the rhizoid environment of the liverwort Cephaloziella varians in Antarctica are assessed by direct PCR and cloning
Read more of: Filamentous ascomycetes inhabiting the rhizoid environment of the liverwort Cephaloziella varians in Antarctica are assessed by direct PCR and cloningWe molecularly assessed the ascomycetous fungal communities inhabiting the rhizoid environment of Cephaloziella varians, collected at Rothera Point on the western Antarctic Peninsula. The RFLP-phenotyped and cloned PCR products of […]
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Rapid amino acid cycling in arctic and antarctic soils
Read more of: Rapid amino acid cycling in arctic and antarctic soilsAmino acids constitute one of the largest inputs of organic nitrogen (N) to most polar soils and have been hypothesized to be important in regulating vegetational succession and productivity in […]
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Macroscopic control parameter for avalanche models of bursty transport
Read more of: Macroscopic control parameter for avalanche models of bursty transportSimilarity analysis is used to identify the control parameter RA for the subset of avalanching systems that can exhibit self-organized criticality SOC. This parameter expresses the ratio of driving to […]
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Life history buffering in Antarctic mammals and birds against changing patterns of climate and environmental variation
Read more of: Life history buffering in Antarctic mammals and birds against changing patterns of climate and environmental variationThe consequences of warming for Antarctic long-lived organisms depend on their ability to survive changing patterns of climate and environmental variation. Among birds and mammals of different Antarctic regions, including […]
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Mycorrhizas and dark septate root endophytes in polar regions
Read more of: Mycorrhizas and dark septate root endophytes in polar regionsWe review the distributions and functions of mycorrhizas and dark septate root endophytes in polar regions. Arbuscular mycorrhizas (AM) are present in the Arctic and Antarctic to 82 ºN and […]
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A statistical study of the open magnetic flux content of the magnetosphere at the time of substorm onset
Read more of: A statistical study of the open magnetic flux content of the magnetosphere at the time of substorm onsetIn this paper we determine the probability of substorm onset as a function of open magnetic flux in the magnetosphere by comparing the occurrence distribution of open flux observed at […]