Responses of invertebrates to temperature and water stress: A polar perspective

Matthew J. Everatt, Pete Convey, Jeffrey S. Bale, M. Roger Worland, Scott A.l. Hayward

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Abstract

As small bodied poikilothermic ectotherms, invertebrates, more so than any other animal group, are susceptible to extremes of temperature and low water availability. In few places is this more apparent than in the Arctic and Antarctic, where low temperatures predominate and water is unusable during winter and unavailable for parts of summer. Polar terrestrial invertebrates express a suite of physiological, biochemical and genomic features in response to these stressors. However, the situation is not as simple as responding to each stressor in isolation, as they are often faced in combination. We consider how polar terrestrial invertebrates manage this scenario in light of their physiology and ecology. Climate change is also leading to warmer summers in parts of the polar regions, concomitantly increasing the potential for drought. The interaction between high temperature and low water availability, and the invertebrates׳ response to them, are therefore also explored.
Original languageEnglish
JournalJournal of Thermal Biology
Early online date28 May 2014
DOIs
Publication statusE-pub ahead of print - 28 May 2014

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