Moist habitats are essential for adults of the Antarctic midge, Belgica antarctica (Diptera: Chironomidae), to avoid dehydration

From: European Journal of Entomology | Date: January 1, 2007| Author: Denlinger, David L; Elnitsky, Michael A; Lee, Richard E Jr; Lopez-Martinez, Giancarlo; Benoiti, Joshua B | Copyright information

Key words. Antarctica, polar insect, dehydration, water balance, midge, Chironomidae, Belgica antarctica

Abstract. Desiccation resistance of adult males and females of the midge, Belgica antarctica (Diptera: Chironomidae) was evaluated to determine how this short-lived stage maintains water balance in the dry Antarctic environment. Both sexes had slightly lower water content ([asymptotically =]60%) and a higher dehydration tolerance (>30% water loss) than most other insects. Water l...

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