Moulting reduces freeze susceptibility in the Antarctic mite Alaskozetes antarcticus (Michael)

The effect of moulting on the cold hardiness of the oribatid mite Alaskozetes antarcticus (Michael) is investigated. Non moulting animals show clear seasonal patterns of cold hardiness with high supercooling points (SCPs) at the peak of summer and an increasing proportion of low SCPs with declining...

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Bibliographic Details
Published in:Physiological Entomology
Main Authors: Hawes, T.C., Bale, J.S., Worland, Roger, Convey, Peter
Format: Article in Journal/Newspaper
Language:unknown
Published: Wiley-Blackwell 2007
Subjects:
Biology and Microbiology
Zoology
Ecology and Environment
Antarctic
The Antarctic
Alaskozetes antarcticus
Antarc*
antarcticus
Mite
Online Access:http://nora.nerc.ac.uk/id/eprint/11747/
Description
Summary:The effect of moulting on the cold hardiness of the oribatid mite Alaskozetes antarcticus (Michael) is investigated. Non moulting animals show clear seasonal patterns of cold hardiness with high supercooling points (SCPs) at the peak of summer and an increasing proportion of low SCPs with declining environmental temperatures. By contrast, both field-fresh and laboratory acclimated (5 °C) mites in the moult state are consistently found to have low SCPs regardless of environmental temperature.

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