Cold hardiness of some Alpine Collembola
1 Individual supercooling points ranged from ‐2 to ‐44°C for six species of springtails, five species from the Swiss Alps and one from lowland Britain. Individuals of Isotomurus alticola (Carl) […]
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Read more of: Cold hardiness of some Alpine Collembola
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Survival strategies in polar terrestrial arthropods
Read more of: Survival strategies in polar terrestrial arthropodsThree components of the survival strategy of a terrestrial Antarctic mite, Alaskozetes antarcticus (Acari: Cryptostigmata) are considered: overwintering survival, energetics and life history. Supercooling is an important feature of its […]
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Discordant RbSr and PbPb whole rock isochron ages for the Archaean basement of Sierra Leone
Read more of: Discordant RbSr and PbPb whole rock isochron ages for the Archaean basement of Sierra LeoneField mapping and structural studies in northern Sierra Leone by an I.G.S. team have established a stratigraphic sequence in this part of the Archaean of the West African Craton. An […]
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The measurement of daily energy expenditure—an evaluation of some techniques
Read more of: The measurement of daily energy expenditure—an evaluation of some techniquesAn energy balance survey was conducted on an Antarctic base on 12 individuals for periods varying between 6 and 12 months. Energy expenditure was estimated using two activity/dairy card techniques […]
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The measurement of food and energy intake in man—an evaluation of some techniques
Read more of: The measurement of food and energy intake in man—an evaluation of some techniquesA dietary survey was carried out on an Antarctic base over a period of 6 to 12 months on twelve individuals. Three methods of determining individual food and energy intake […]
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A longitudinal study of body weight and body fat changes in Antarctica
Read more of: A longitudinal study of body weight and body fat changes in AntarcticaBody weight and body fat changes (calculated from skinfold thickness) that occurred in a male population spending a year on an Antarctic base are described. There was a marked individual […]
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Genistein and estradiol have common and specific impacts on the sea bass (Dicentrarchus labrax) skin-scale barrier
Read more of: Genistein and estradiol have common and specific impacts on the sea bass (Dicentrarchus labrax) skin-scale barrierTeleost fish scales play important roles in animal protection and homeostasis. They can be targeted by endogenous estrogens and by environmental estrogenic endocrine disruptors. The phytoestrogen genistein is ubiquitous in […]
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Organic compounds in a sub-Antarctic ice core: A potential suite of sea-ice markers
Read more of: Organic compounds in a sub-Antarctic ice core: A potential suite of sea-ice markersInvestigation of organic compounds in ice cores can potentially unlock a wealth of new information in these climate archives. We present results from the first ever ice core drilled on […]
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Humans and wind, shaping Antarctic soil arthropod biodiversity
Read more of: Humans and wind, shaping Antarctic soil arthropod biodiversity1. Biodiversity loss has increased globally in recent years. The major threat to Antarctica’s unique terrestrial biodiversity is the establishment of non-native species. Nonetheless, while preventing the introduction of non-native […]
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Physical length scales of wind-blown snow redistribution and accumulation on relatively smooth Arctic first-year sea ice
Read more of: Physical length scales of wind-blown snow redistribution and accumulation on relatively smooth Arctic first-year sea iceSnow thickness measurements over relatively smooth Arctic first-year sea ice, obtained near Cambridge Bay, Nunavut, Canada (2014, 2016 and 2017) and near Elson Lagoon, Alaska, USA (2003 and 2006), are […]