Hibernation has been selected for increasing survival in harsh climatic environments. Seasonal variability in temperature may push the body temperatures of hibernating animals across boundaries of alternative states between euthermic temperature and torpor temperature, typical of either hibernation or summer dormancy. Nowadays, wearable electronics present a promising avenue to assess the occurrence of criticality in physiological systems, such as body temperature fluctuating between attractors of activity and hibernation. For this purpose, we deployed temperature loggers on two hibernating edible dormice for an entire year and under Mediterranean climate conditions. Highly stochastic body temperatures with sudden switches over time allowed us to assess the reliability of statistical leading indicators to anticipate tipping points when approaching a critical transition. Hibernation dynamics showed flickering, a phenomenon occurring when a system rapidly moves back and forth between two alternative attractors preceding the upcoming major regime shift. Flickering of body temperature increased when the system approached bifurcations, which were also anticipated by several metric- and model-based statistical indicators. Nevertheless, some indicators did not show a pattern in their response, which suggests that their performance varies with the dynamics of the biological system studied. Gradual changes in air temperature drove transient between states of hibernation and activity, and also drove hysteresis. For hibernating animals, hysteresis may increase resilience when ending hibernation earlier than the optimal time, which may occur in regions where temperatures are sharply rising, especially during winter. Temporal changes in early indicators of critical transitions in hibernation dynamics may help to understand the effects of climate on evolutionary life histories and the plasticity of hibernating organisms to cope with shortened hibernation due to global warming.

选择冬眠以增加在恶劣气候环境下的生存率。温度的季节性变化可能会使处于休眠状态的动物的体温越过正常温度和r温度之间的交替状态边界，这通常是冬眠或夏季休眠状态。如今，可穿戴电子设备为评估生理系统中的关键事件（例如活动吸引子和冬眠之间的体温波动）提供了一个有希望的途径。为此，我们在整个冬季和地中海气候条件下，在两个休眠的可食用宿舍中部署了温度记录器。高度随机的体温以及随着时间的推移突然发生的变化使我们能够评估统计领先指标的可靠性，以预测接近关键转变时的临界点。休眠动态显示闪烁，这种现象是在即将发生的主要政权转移之前，系统在两个替代吸引子之间快速来回移动时发生的。当系统接近分叉点时，体温的闪烁会增加，一些基于度量和模型的统计指标也可以预期到这一点。然而，一些指标并未显示出响应模式，这表明其性能随所研究的生物系统的动力学而变化。空气温度的逐渐变化使冬眠状态和活动状态之间发生瞬态变化，并导致磁滞现象。对于冬眠的动物，在比最佳时间更早结束冬眠时，滞后可能会增加回弹力，这可能发生在温度急剧上升的地区，特别是在冬天。冬眠动态关键转变的早期指标的时间变化可能有助于了解气候对进化生活史的影响以及冬眠生物的可塑性，以应对由于全球变暖而导致的冬眠时间缩短。