6241 to 6252 of 14094 results
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The endocrine basis of deferred sexual maturity in the wandering albatross, Diomedea exulans. L.
Read more of: The endocrine basis of deferred sexual maturity in the wandering albatross, Diomedea exulans. L.1 Earlier work with albatrosses led to the hypothesis that a critical element influencing ovarian development each year is whether the ovary responds to rising gonadotrophin secretion by secreting progesterone […]
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The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton
Read more of: The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplanktonThe effects of temperature and radiation flux on the partitioning of photosynthetically fixed carbon into four intracellulai metabolic pools was investigated for natural phytoplankton assemblages from an Antarctic freshwater lake. […]
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Effects of freezing and thawing on a species of Zygnema (Chlorophyta) from the Antarctic
Read more of: Effects of freezing and thawing on a species of Zygnema (Chlorophyta) from the AntarcticUsing a variety of techniques, the susceptibility of a species of Zygnerna (Chlorophyta) from the Antarctic to freezing was investigated with freshly collected and cultured material. There was no evidence […]
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Demography and distribution of the Patagonian squid (Loligo gahi d’Orbigny) during the austral winter
Read more of: Demography and distribution of the Patagonian squid (Loligo gahi d’Orbigny) during the austral winterA bottom-trawl survey of the Falklands Interim Conservation Zone was carried out during July and August 1988. Samples of Loligo gahi were collected from depths of 50–400 m and analysed […]
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Mechanical weathering rates on Signy Island, maritime Antarctic
Read more of: Mechanical weathering rates on Signy Island, maritime AntarcticBy means of re‐evaluating a number of properties of rock tablets left in the field for varying time periods, an estimation of rock breakdown rates is attained. From data obtained […]
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Tests of Antarctic soils for insect parasitic nematodes
Read more of: Tests of Antarctic soils for insect parasitic nematodesNematodes of the families Heterorhabditidae and Steinernematidae are obligate parasites of a wide range of insects (Poinar 1979). The third stage juvenile of these nematodes is a non-feeding infective form […]
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Simultaneous conjugate observations of dynamic variations in high-latitude dayside convection due to changes in IMFBy
Read more of: Simultaneous conjugate observations of dynamic variations in high-latitude dayside convection due to changes in IMFByTwo conjugate HF radars are currently operating at Goose Bay, Labrador, and Halley Station, Antarctica, and are providing continuous, high temporal resolution measurements of plasma convection over large areas of […]