9709 to 9720 of 13980 results
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Commensalism between a liparid fish (Careproctus sp.) and stone crabs (Lithodidae) photographed in situ using a baited camera
Read more of: Commensalism between a liparid fish (Careproctus sp.) and stone crabs (Lithodidae) photographed in situ using a baited cameraThe commensal relationship between a snailfish, tentatively identified as Careproctus sp. (Osteichthyes: Liparidae), and the lithodid crab Paralomis formosa (Crustacea: Lithodidae) was photographed in situ using a baited camera vehicle, […]
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Predictions of critical transitions with non-stationary reduced order models
Read more of: Predictions of critical transitions with non-stationary reduced order modelsHere we demonstrate the ability of stochastic reduced order models to predict the statistics of non-stationary systems undergoing critical transitions. First, we show that the reduced order models are able […]
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Lichens at the limits of life: past perspectives and modern technology
Read more of: Lichens at the limits of life: past perspectives and modern technologyLichens are found at the limits of polar life in the Antarctic Dry Valleys under extreme conditions of UVB radiation, desiccation and low temperature. They may even have evolved in […]
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Proximal analysis of regolith habitats and protective biomolecules in situ by laser Raman spectroscopy: Overview of terrestrial Antarctic habitats and Mars analogs
Read more of: Proximal analysis of regolith habitats and protective biomolecules in situ by laser Raman spectroscopy: Overview of terrestrial Antarctic habitats and Mars analogsFourier-transform laser Raman spectroscopy in the near infrared (1064 nm) has been used to characterize a variety of key pigments and biomolecules produced by cyanobacteria and other stress-tolerant microbes in […]
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Antarctic ecosystems as models for extraterrestrial surface habitats
Read more of: Antarctic ecosystems as models for extraterrestrial surface habitatsSurface habitats in Antarctic deserts are near the limits of life on Earth and resemble those hypothesized for early Mars. Cyanobacteria dominate the transient riverbeds, stromatolitic sediments in ice-covered lakes, […]
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Marine biology: new light on growth in the cold
Read more of: Marine biology: new light on growth in the coldThe recent collapse of the Antarctic Larson ice shelves revealed a slow growing benthic community on the seabed below. But a revisit just four years later revealed rapid growth of […]
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Cyanobacteria in deserts — life at the limit?
Read more of: Cyanobacteria in deserts — life at the limit?Cyanobacteria are primitive phototrophic prokaryotes whose long evolutionary history dates back to the Proterozoic era. Their ubiquity on the planet and dominance in hot and cold deserts is a measure […]
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Postsealing genetic variation and population structure of two species of fur seal (Arctocephalus gazella and A. tropicalis)
Read more of: Postsealing genetic variation and population structure of two species of fur seal (Arctocephalus gazella and A. tropicalis)Commercial sealing in the 18th and 19th centuries had a major impact on the Antarctic and subantarctic fur seal populations (Arctocephalus gazella and A. tropicalis) in the Southern Ocean. The […]
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Space Plasma Exploration by Active Radar (SPEAR): an overview of a future radar facility
Read more of: Space Plasma Exploration by Active Radar (SPEAR): an overview of a future radar facilitySPEAR is a new polar cap HF radar facility which is to be deployed on Svalbard. The principal capabilities of SPEAR will include the generation of artificial plasma irregularities, operation […]