Available Data For: Simulated Heat Waves Decrease the Upper Thermal Tolerance of Bumblebees

This research study estimates the upper critical thermal limits (Critical Thermal Maximum (CTmax) and Heat Coma Temperature (HCT)), of Bombus terrestris audax and investigates whether the critical thermal maxima of experimental individuals is modified following exposure to simulated heat waves of different magnitude. CTmax was recorded between 48.9-52.7 ºC, while the HCT ranged between 50.7-53.4 ºC. The upper thermal limits of bumblebee workers decreased significantly after being exposed to a single heat wave of 34-36 ºC, while individuals exposed to a heat wave of 30-32 ºC showed no significant changes in their thermal tolerance. This indicates that B. terrestris lacks a capacity to acclimate in the face of extreme weather events. This file includes the protocols used for the measurement of thermal tolerance and acclimation capacity of bumblebee workers. Furthermore, it includes the available data regarding thermal tolerance (CTmax) values and codes that were used for the analyses.

本研究评估了地蜂 Bombus terrestris audax 的临界热极限（临界热最大值（CTmax）和热昏迷温度（HCT）），并探讨在遭受不同强度模拟热浪的影响后，实验个体的临界热最大值是否发生改变。CTmax 的记录范围在 48.9-52.7 ºC 之间，而 HCT 的范围则在 50.7-53.4 ºC 之间。在暴露于 34-36 ºC 的单一热浪之后，工蜂的热极限显著下降，而暴露于 30-32 ºC 热浪的个体在热耐受性方面并未显示出显著变化。这表明 B. terrestris 在面对极端天气事件时缺乏适应的能力。本文件包含了用于测量工蜂热耐受性和适应能力的实验方案，并包括有关热耐受性（CTmax）数值和分析所用的编码数据。