Thermal tolerance patterns of a carabid beetle sampled along invasion and altitudinal gradients at a sub-Antarctic island

Dahl, Julie Engell; Bertrand, Mathilde; Pierre, Aurelien; Curtit, Berengere; Pillard, Clemence; Tasiemski, Aurelie; Convey, Peter; Renault, David

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Thermal tolerance patterns of a carabid beetle sampled along invasion and altitudinal gradients at a sub-Antarctic island

Dahl, Julie Engell; Bertrand, Mathilde; Pierre, Aurelien; Curtit, Berengere; Pillard, Clemence; Tasiemski, Aurelie; Convey, Peter ORCID: https://orcid.org/0000-0001-8497-9903; Renault, David. 2019 Thermal tolerance patterns of a carabid beetle sampled along invasion and altitudinal gradients at a sub-Antarctic island. Journal of Thermal Biology, 86, 102447. 8, pp. 10.1016/j.jtherbio.2019.102447

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Abstract

Highlights
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Insects sampled along the invasion gradient were not characterized by an increased thermal tolerance.
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Significant differences in the ability to recover from thermal stress were found among populations.
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Cold tolerance was not always the highest in organisms sampled at higher altitude.
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Insects with relatively high cold tolerance were often relatively sensitive to heat exposure and vice versa.
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Insects could recover from short exposure to −5 °C and 35 °C, but few could recover from short exposure to −8 °C or 38 °C.

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