Thermoregulatory plasticity in free-ranging vervet monkeys, Chlorocebus pygerythrus
Thermoregulatory plasticity in free-ranging vervet monkeys, Chlorocebus pygerythrus
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自由放养的黑长尾猴（Chlorocebus pygerythrus）的体温调节可塑性
DOI：
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
A. Fuller
中科院分区：
文献类型：
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作者：
A. Lubbe;Robyn S. Hetem;Richard McFarland;L. Barrett;P. Henzi;D. Mitchell;Leith C. R. Meyer;S. Maloney;A. Fuller
我们使用植入式微型数据记录仪首次测量了自由活动的类人灵长类动物的体温。生活在高度季节性、半干旱环境中的黑长尾猴（Chlorocebus pygerythrus）在冬季的 24 小时平均体温 (34.6 ± 0.5 °C) 低于夏季 (36.2 ± 0.1 °C)，并且表现出对邻近环境压力源的反应增加的异温性（以体温节律的 24 小时幅度为指标）。夏季体温节律的平均24小时振幅（2.5±0.1℃）低于冬季（3.2±0.4℃），单只猴子的最高振幅（5.6℃）是在冬季记录的。冬季体温节律的较高幅度主要是由于猴子在夜间不活动时 24 小时最低体温较低的结果。这些较低的最低体温与较低的黑球温度（GLMM，β = 0.046，P < 0.001）、短光周期（β = 0.010，P < 0.001）和过去两个月的低降雨量有关，我们将其用作食物供应的代理（β = 0.001，P < 0.001）。尽管冬季平均最低体温较低，但冬季和夏季之间的较低模态体温没有变化。因此，与针对麻木或冬眠提出的调节生理调节不同，这些最低冬季体温似乎并不反映体温的调节降低。尽管如此，体温调节可塑性可能对黑长尾猴有健康益处。
We used implanted miniature data loggers to obtain the first measurements of body temperature from a free-ranging anthropoid primate. Vervet monkeys (Chlorocebus pygerythrus) living in a highly seasonal, semi-arid environment maintained a lower mean 24-h body temperature in winter (34.6 ± 0.5 °C) than in summer (36.2 ± 0.1 °C), and demonstrated increased heterothermy (as indexed by the 24-h amplitude of their body temperature rhythm) in response to proximal environmental stressors. The mean 24-h amplitude of the body temperature rhythm in summer (2.5 ± 0.1 °C) was lower than that in winter (3.2 ± 0.4 °C), with the highest amplitude for an individual monkey (5.6 °C) recorded in winter. The higher amplitude of the body temperature rhythm in winter was a consequence primarily of lower 24-h minimum body temperatures during the nocturnal phase, when monkeys were inactive. These low minimum body temperatures were associated with low black globe temperature (GLMM, β = 0.046, P < 0.001), short photoperiod (β = 0.010, P < 0.001) and low rainfall over the previous 2 months, which we used as a proxy for food availability (β = 0.001, P < 0.001). Despite the lower average winter minimum body temperatures, there was no change in the lower modal body temperature between winter and summer. Therefore, unlike the regulated physiological adjustments proposed for torpor or hibernation, these minimum winter body temperatures did not appear to reflect a regulated reduction in body temperature. The thermoregulatory plasticity nevertheless may have fitness benefits for vervet monkeys.
影响因子：
3.7
作者：
Nowack J;Mzilikazi N;Dausmann KH
通讯作者：
Dausmann KH