Seasonal patterns of cold-hardiness in antarctic terrestrial arthropods
作者： Richard E. Lee , J.G. Baust
DOI: 10.1016/0300-9629(81)92578-0
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摘要: Abstract 1. Seasonal changes in cold-hardiness of three terrestrial Antarctic arthropods were investigated. 2. Field microhabitat temperatures decreased from means 11.2 early February to 0.8°C by the end March; this period represents a transition austral mid-summer autumn. 3. Concurrent with cooling, two freezing susceptible species, mite, Alaskozetes antarcticus, and collembolan, Cryptopyyus increased hardiness depressing supercooling points (SCP) accumulating cryoprotectants. 4. The tolerant chironomid, Belgica antarctica, SCPs −10.2 -5.0°C while attaining final cryoprotectant concentrations 11.4/jg/mg (trehalose) 7.0μg/mg (glucose).
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