Publications

13705 to 13716 of 13906 results

1. Modelling Southern Ocean ecosystems: krill, the food-web, and the impacts of harvesting

   The ecosystem approach to fisheries recognises the interdependence between harvested species and other ecosystem components. It aims to account for the propagation of the effects of harvesting through the food-web. […]

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2. Habitat temperature and the temporal scaling of cold hardening in the high Arctic collembolan, Hypogastrura tullbergi (Schäffer)

   1. Cold tolerance is a fundamental adaptation of insects to high latitudes. Flexibility in the cold hardening process, in turn, provides a useful indicator of the extent to which polar […]

   Read more of: Habitat temperature and the temporal scaling of cold hardening in the high Arctic collembolan, Hypogastrura tullbergi (Schäffer)

3. Ecologically realistic modalities in arthropod supercooling point distributions

   Modality in the supercooling points of cold tolerant but freezing intolerant terrestrial arthropods has proved a pragmatically reliable means of distinguishing between summer and winter cold hardiness in such species. […]

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4. The role of the atmospheric circulation in the record minimum extent of open water in the Ross Sea in the 2003 austral summer

   The contribution of the atmospheric circulation to a record minimum extent of open water in the polar Ross Sea (RS) region in the 2003 austral summer is examined. Two major […]

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5. A new automated logging gateway to study the demographics of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia: testing the reliability of the system using radio telemetry

   The use of automated systems to record the identity of individual penguins and their movements in and out of a colony can provide an effective means of studying penguin biology […]

   Read more of: A new automated logging gateway to study the demographics of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia: testing the reliability of the system using radio telemetry

6. Population abundance, structure and turnover estimates for leopard seals during winter dispersal combining tagging and photo-identification data

   Winter dispersal in leopard seals is poorly understood because of its low density in most of its range. By combining photo-identification and tagging data from Bird Island, South Georgia, in […]

   Read more of: Population abundance, structure and turnover estimates for leopard seals during winter dispersal combining tagging and photo-identification data

7. One-to-one coupling of glacial climate variability in Greenland and Antarctica

   Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth’s climate dynamics. For the last glacial period, ice core studies1, […]

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8. Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 2. High-latitude circulation and interplanetary magnetic field dependence

   We analyze upper thermospheric (∼250 km) nighttime horizontal neutral wind patterns, during geomagnetically quiet (Kp < 3) conditions, over the following locations: South Pole (90°S), Halley (76°S, 27°W), Millstone Hill […]

   Read more of: Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 2. High-latitude circulation and interplanetary magnetic field dependence

9. Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 1. Local time, latitudinal, seasonal, and solar cycle dependence

   We analyze ground-based Fabry-Perot interferometer observations of upper thermospheric (∼250 km) horizontal neutral winds derived from Doppler shifts in the 630.0 nm (red line) nightglow. The winds were measured over […]

   Read more of: Climatologies of nighttime upper thermospheric winds measured by ground-based Fabry-Perot interferometers during geomagnetically quiet conditions: 1. Local time, latitudinal, seasonal, and solar cycle dependence

10. Unsynchronized and synchronized vertical migration of zooplankton in a high arctic fjord

    We measured vertical migration of zooplankton in an arctic fjord at 79uN between June and September 2002 and transcending a period of continuous illumination to one of true day and […]

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11. Geothermal bryophyte habitats in the South Sandwich Islands, maritime Antarctic

    Question: How does geothermal activity influence terrestrial plant colonization, species composition and community development in the Antarctic? Location: South Sandwich Islands, maritime Antarctic. Methods: Bryophytes were documented during a biological […]

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12. Taxonomy, ecology and behaviour of the cirrate octopods

    The cirrate octopods are deep-sea, cold-adapted cephalopod molluscs that are found throughout the world’s oceans, usually at depths in excess of 300 m, but shallower in cold water at high […]

    Read more of: Taxonomy, ecology and behaviour of the cirrate octopods