Editorial Expression of Concern to: Journal of Comparative Physiology B (2020) 190:391–401 https://doi.org/10.1007/s00360-020-01277-2

The editors are issuing an editorial expression of concern for this article [1]. In Fig. 3, the first and second band appear to be identical. The author has been unable to provide the original data or image for Fig. 3. Readers are urged to use caution when interpreting the results of that particular analysis and the data shown in Fig. 3.

The author agrees to this Editorial Expression of Concern [1].