RHYTHMICAL AROUSAL FROM HIBERNATION IN GOLDEN-MANTLED GROUND SQUIRREL, CITELLUS LATERALIS TESCORUM
RHYTHMICAL AROUSAL FROM HIBERNATION IN GOLDEN-MANTLED GROUND SQUIRREL, CITELLUS LATERALIS TESCORUM
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DOI：
10.1139/z61-013
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发表时间：
1961-01-01
期刊：
影响因子：
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通讯作者：
FISHER, KC
中科院分区：
文献类型：
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作者：
PENGELLEY, E;FISHER, KC
通过一种特殊的技术，对100多只侧棘球绦虫进行了每日观察，结果表明，在32华氏度的环境温度下，没有动物连续冬眠超过16天。冬眠开始时（即秋季）和结束时（即春季）的唤醒频率高于冬眠中期（12月和1月）。研究发现，成年雄性比成年雌性或雌雄幼体更容易唤起性欲。初步数据表明，环境温度越高（高达70-75华氏度），觉醒就越频繁。对12只C. columbianus、9只C. tridecemlineatus和28只Glis Glis的观察表明，在32华氏度的环境温度下，最长连续冬眠期分别为19、12和33天；C. richardsonii在我们的实验室条件下不冬眠。触发每一次觉醒的触发器是未知的。在性兴奋期间，食物和水的摄入是不必要的，排便也是不必要的。然而，排尿是在每次兴奋时发生的。观察结果强烈表明，排尿只在动物处于活跃的恒温状态时形成。有人认为，是代谢终产物的积累构成了觉醒的刺激。
Daily observations on each of over one hundred individuals of C. lateralis by a special technique indicated that no animal remains continuously in the hibernating state longer than approximately 16 days (at an environmental temperature of 32[degree]F). The arousals were more frequent at the beginning (i.e. in the autumn) and the ending (i.e. in the spring) of the whole hibernating period, than during the middle of this period (December and January). Adult males were found to arouse more frequently than did adult females or the juveniles of either sex. Preliminary data indicate that arousals are more frequent the higher the environmental temperature (up to 70-75[degree]F). Observations on 12 C. columbianus, 9 C. tri-decemlineatus, and 28 Glis glis indicated maximum continuous hibernation periods of 19, 12 and 33 days, respectively, at an environmental temperature of 32[degree]F; C. richardsonii did not hibernate under our laboratory conditions. The trigger which starts each arousal is not known. Food and water intake during an arousal is not necessary, nor is defecation. Urination, however, takes place during every arousal. The observations strongly suggest that the urine voided was formed only while the animal was in the active homeothermic state. It is suggested that it is the accumulation of metabolic end products which constitutes the stimulus for an arousal.