Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071, Moscow, Russia.
Dokl Biol Sci. 2021 Jul;499(1):93-96. doi: 10.1134/S0012496621040025. Epub 2021 Aug 30.
Previously, in male Greenfinch, we have described ultradian rhythms of body temperature with periods of 3-6, 8-10, 12-20, and 40-60 min. There are individual variations in this rhythmicity. Rhythms with a period of 3-7 min are more characteristic of some males but not for the others. These males had small values of the ratio of the harmonic spectral density in the range of 12-20 min to the harmonic spectral density in the range of 3-7 min. In this study, we hypothesized that ultradian rhythmicity of body temperature fluctuations is related to the nervous system activity in general and to temperament in particular. We have conducted two sets of experiments for estimating the aggression level (n = 12 males) and reaction to novelty (n = 17). Individuals with predominant rhythms with a period of 3-7 min are less aggressive and more slowly adapt to new conditions. Thus, the ultradian body temperature rhythmicity in Greenfinch is related to their behavioral features and temperament.
此前，我们在雄性绿雀中描述了体温的超日周期节律，周期为 3-6、8-10、12-20 和 40-60 分钟。这种节律性存在个体差异。具有 3-7 分钟周期的节律在一些雄性中更为典型，但在其他雄性中则不然。这些雄性在 12-20 分钟范围内的谐波谱密度与 3-7 分钟范围内的谐波谱密度之比的数值较小。在这项研究中，我们假设体温波动的超日周期节律与神经系统活动有关，特别是与气质有关。我们进行了两组实验来估计攻击性水平（n = 12 只雄性）和对新奇事物的反应（n = 17）。主要具有 3-7 分钟周期节律的个体攻击性较低，对新环境的适应速度较慢。因此，绿雀的超日体温节律与它们的行为特征和气质有关。
