10477 to 10488 of 13722 results
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The impact of regional climate change on the marine ecosystem of the western Antarctic Peninsula
Read more of: The impact of regional climate change on the marine ecosystem of the western Antarctic PeninsulaThe Antarctic Peninsula is one of three areas of the globe currently experiencing rapid regional climate change (King, 1994; Smith et al., 1996, King & Harangozo, 1998; Vaughan et al., […]
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Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and Evolution
Read more of: Antarctic Lakes as Models for the Study of Microbial Biodiversity, Biogeography and EvolutionThe Antarctic continent is almost entirely covered by a vast icecap that reaches 4 km in thickness. Despite this, the continent possesses a remarkable array of lake ecosystems, many of […]
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The ice thickness distribution of Flask Glacier, Antarctic Peninsula, determined by combining radio-echo soundings, surface velocity data and flow modelling
Read more of: The ice thickness distribution of Flask Glacier, Antarctic Peninsula, determined by combining radio-echo soundings, surface velocity data and flow modellingAn interpolated bedrock topography is presented for Flask Glacier, one of the tributaries of the remnant part of the Larsen B ice shelf, Antarctic Peninsula. The ice thickness distribution is […]
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Continental governance and environmental management mechanisms under the Antarctic Treaty System: sufficient for the biodiversity challenges of the this century?
Read more of: Continental governance and environmental management mechanisms under the Antarctic Treaty System: sufficient for the biodiversity challenges of the this century?Antarctic terrestrial biodiversity is challenged by rapid climatic changes and expansion of the human footprint. As well as the potential for environmental damage at the local level, these challenges are […]
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Microdistribution of faunal assemblages at deep-sea hydrothermal vents in the Southern Ocean
Read more of: Microdistribution of faunal assemblages at deep-sea hydrothermal vents in the Southern OceanChemosynthetic primary production by microbes supports abundant faunal assemblages at deep-sea hydrothermal vents, with zonation of invertebrate species typically occurring along physico-chemical gradients. Recently discovered vent fields on the East […]
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Antarctic Tardigrada: a first step in understanding molecular operational taxonomic units (MOTUs) and biogeography of cryptic meiofauna
Read more of: Antarctic Tardigrada: a first step in understanding molecular operational taxonomic units (MOTUs) and biogeography of cryptic meiofaunaRecent studies have suggested that some resident Antarctic biota are of ancient origin and may have been isolated for millions of years. The phylum Tardigrada, which is part of the […]
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A new brooding species of brittle-star (Echinodermata: Ophiuroidea) from Antarctic waters
Read more of: A new brooding species of brittle-star (Echinodermata: Ophiuroidea) from Antarctic watersA new brittle star attributable to the genus Ophiacantha is described from Antarctic waters, in the diffuse limits of the Antarctic Polar Front at Shag Rocks, South Georgia. The new […]
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Anthropogenic impacts on sub-Antarctic and Antarctic islands and the adjacent marine environments
Read more of: Anthropogenic impacts on sub-Antarctic and Antarctic islands and the adjacent marine environmentsThe impacts of human activities are more apparent at present in the sub-Antarctic than in the Antarctic. The sub-Antarctic islands, despite their physical isolation in the Southern Ocean, are generally […]
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Observations of the ophiuroids from the West Antarctic sector of the Southern Ocean
Read more of: Observations of the ophiuroids from the West Antarctic sector of the Southern OceanOphiuroids are a conspicuous and often dominant component of the Antarctic continental shelf benthos. Here we report on the ophiuroids collected from the Burdwood Bank, off the Patagonian Shelf, through […]
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Antarctic Ecosystems: An Extreme Environment in a Changing World
Read more of: Antarctic Ecosystems: An Extreme Environment in a Changing WorldSince its discovery Antarctica has held a deep fascination for biologists. Extreme environmental conditions, seasonality and isolation have lead to some of the most striking examples of natural selection and […]
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Spatial and Temporal Variability in Terrestrial Antarctic Biodiversity
Read more of: Spatial and Temporal Variability in Terrestrial Antarctic BiodiversityOf all the characteristics of biodiversity, the most noteworthy is its variability. Recognition that the significance of the mechanisms underlying this variation changes as the scale of interest is altered, […]