Publications

6229 to 6240 of 13722 results

1. The effects of electric field and ring current energy increases onFlayer irregularities at auroral and subauroral latitudes

   A model of the dynamics of magnetic storms is proposed which describes the effects of magnetospheric activity on irregularities at F layer heights for auroral and subauroral latitudes. For high […]

   Read more of: The effects of electric field and ring current energy increases onFlayer irregularities at auroral and subauroral latitudes

2. Acanthocephalan infection of inshore fish in two fjords at South Georgia

   An examination of 111 fish of eight species, including 92 immature Notothenia rossii Richardson revealed nine acanthocephalan species, including four Echinorhynchida occurring in the alimentary tract and five Polymorphida in […]

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3. Digenean Trematoda infection of inshore fish at South Georgia

   A sample of 111 fish of eight species caught in two fjords at South Georgia were examined for digenean trematode parasites. The alimentary tracts of all specimens were infected with […]

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4. An assessment of the L shell fitting beam-swinging technique for measuring ionosphericEregion irregularity drift patterns

   The majority of current ground‐based radar experiments measuring ionospheric convection flows derive the ionospheric flow vectors from line‐of‐sight (l‐o‐s) velocity measurements made from a single radar site. In order to […]

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5. Microbial ecology in Antarctica

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6. Epifluorescence image analysis of the three-dimensional structure of phototrophic microbial biofilms of Antarctic soil surfaces

   Read more of: Epifluorescence image analysis of the three-dimensional structure of phototrophic microbial biofilms of Antarctic soil surfaces

7. The importance of understanding annual and shorter-term temperature patterns and variation in the surface levels of polar soils for terrestrial biota

   Ground temperatures in the top few centimetres of the soil profile are key in many biological processes yet remain very poorly documented, especially in the polar regions or over longer […]

   Read more of: The importance of understanding annual and shorter-term temperature patterns and variation in the surface levels of polar soils for terrestrial biota

8. ‘Business as usual’: drilling predation across the K-Pg mass extinction event in Antarctica

   A survey of 759 predatory drill holes in Late Cretaceous and Paleogene molluscan and serpulid worm prey from Seymour Island (Antarctica) has allowed exploration of the effects of the K-Pg […]

   Read more of: ‘Business as usual’: drilling predation across the K-Pg mass extinction event in Antarctica

9. The internal structure of the Brunt Ice Shelf from ice-penetrating radar analysis and implications for ice shelf fracture

   The rate and direction of rift propagation through ice shelves depends on both the stress field and the heterogeneity, or otherwise, of the physical properties of the ice. The Brunt […]

   Read more of: The internal structure of the Brunt Ice Shelf from ice-penetrating radar analysis and implications for ice shelf fracture

10. A New Daily Observational Record from Grytviken, South Georgia: Exploring Twentieth-Century Extremes in the South Atlantic

    The sparse nature of observational records across the mid- to high latitudes of the Southern Hemisphere limits the ability to place late-twentieth-century environmental changes in the context of long-term (multidecadal […]

    Read more of: A New Daily Observational Record from Grytviken, South Georgia: Exploring Twentieth-Century Extremes in the South Atlantic

11. Non-native microbial introductions: what risk to Antarctic ecosystems?

    Antarctica’s biodiversity and its intrinsic values are potentially at risk from the introduction of non-native species, derived from a range of sources including human activities. Whilst controls on introducing plants […]

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12. The devil is in the detail: small-scale sexual segregation despite large-scale spatial overlap in the wandering albatross

    Sexual segregation in foraging habitat occurs in many marine predators and is usually attributed to competitive exclusion, different parental roles of each sex or niche specialisation associated with sexual size […]

    Read more of: The devil is in the detail: small-scale sexual segregation despite large-scale spatial overlap in the wandering albatross