Publications

6553 to 6564 of 13722 results

1. Late Cretaceous palaeoenvironments and biotas: an Antarctic perspective

   The Cretaceous period is often regarded as one of “greenhouse” warmth, with perhaps its acme occurring in the late Albian stage (100 Ma ago). However, it is now apparent that, […]

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2. Evolutionary history of the polar regions

   With the recent rapid increase in our knowledge of the palaeontological history of both polar regions it has become apparent that they should now be regarded as something more than […]

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3. Excitation and decay of flows in the magnetosphere-ionosphere system due to magnetic reconnection at the dayside magnetopause and in the geomagnetic tail

   Read more of: Excitation and decay of flows in the magnetosphere-ionosphere system due to magnetic reconnection at the dayside magnetopause and in the geomagnetic tail

4. The propagation of mixed polarization VLF (f≤5 kHz) radio waves in the Antarctic Earth-ionosphere waveguide

   During 1986, a series of special VLF transmissions at ∼3 kHz and ∼5 kHz were made from the crossed dipole antenna at Siple Station, Antarctica, which simulated transmissions from a […]

   Read more of: The propagation of mixed polarization VLF (f≤5 kHz) radio waves in the Antarctic Earth-ionosphere waveguide

5. Aspects of the biology of the midge, Eretmoptera murphyi Schaeffer (Diptera: Chironomidae), introduced to Signy Island, maritime Antarctic

   The biology of a population of the subantarctic chironomid midge Eretmoptera murphyi Schaeffer, introduced to Signy Island in the maritime Antarctic more than 20 years ago, is described. Investment in […]

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6. Seasonal lipid contents of Antarctic microarthropods

   A technique for the accurate determination of lipid content of very small quantities of biological tissue was applied to two Antarctic oribatid mites,Alaskozetes antarcticus andHalozetes belgicae, and a collembolan,Cryptopygus antarcticus. […]

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7. Global climate models and Antarctica

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8. Eocene microplankton from La Meseta Formation, northern Seymour Island

   Twenty two samples collected from the Tertiary La Meseta Formation of Cape Wiman, Seymour Island, Antarctic Peninsula yielded abundant and moderately diverse assemblages of marine palynoflora, dominated by dinoflagellate cysts, […]

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9. Observation of two preferred propagation paths for whistler mode VLF signals received at a non-conjugate location

   Whistler mode signals from NLK (24.8 kHz) were received at Dunedin, New Zealand during 1989-90. The arrival bearing of the signals shows a bimodal distribution which is consistent with the […]

   Read more of: Observation of two preferred propagation paths for whistler mode VLF signals received at a non-conjugate location

10. The effects of ionospheric horizontal electron density gradients on whistler mode signals

    Whistler mode group delays observed at Faraday, Antarctica (65° S, 64° W) and Dunedin, New Zealand (46° S, 171° E) show sudden increases of the order of hundreds of milliseconds […]

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11. Proximate and elemental composition of gelatinous zooplankton from the Southern Ocean

    We have analysed the proximate composition and elemental (C,H,N) composition of eight gelatinous zooplankton from the Southern Ocean (two ctenophores, one anthomedusan, two siphonophorcs, one scyphozoan, one annelid and one […]

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12. Egg size and composition in Ceratoserolis (Crustacea: Isopoda) from the Weddell Sea

    Samples of ovigerous female Ceratoserolis trilobitoides carrying newly spawned (stage A1) eggs in the marsupium were obtained from Borge Bay, Signy Island (South Orkney Islands), the continental shelf near Elephant […]

    Read more of: Egg size and composition in Ceratoserolis (Crustacea: Isopoda) from the Weddell Sea