Temperature variability homogenized thermal responses in an herbivore community along a European longitudinal gradient

This dataset accompanies a study on the physiological thermal limits of cereal aphids collected across a longitudinal gradient in Western and Central Europe. The dataset comprises three primary data tables and one R script. It is designed to support analyses of species- and population-level thermal tolerance variation, functional trait diversity, and their relationship to local climate conditions. The data were collected using a standardized experimental protocol and are suitable for evolutionary, ecological, and biogeographical research on insect thermal adaptation.