Eye region surface temperature reflects both energy reserves and circulating glucocorticoids in a wild bird.
Eye region surface temperature reflects both energy reserves and circulating glucocorticoids in a wild bird.
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DOI：
10.1038/s41598-018-20240-4
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发表时间：
2018-01-30
影响因子：
4.6
通讯作者：
Nager RG
中科院分区：
文献类型：
--
作者：
Jerem P;Jenni-Eiermann S;Herborn K;McKeegan D;McCafferty DJ;Nager RG
恒温动物的体温显示出个体内和个体间的巨大差异，但这种差异的来源在野生动物中并不完全清楚。体温的变化可以表明个体如何通过代谢或压力诱导的影响来科普环境，这两者都可能与能量储备的消耗有关。身体状况可以通过代谢率的变化来反映热量的产生，以保护能量储备。此外，代谢过程的变化可能是由应激相关的糖皮质激素分泌介导的，这与影响局部体温的血流模式改变有关。因此，身体状况和糖皮质激素分泌都与体温有关。我们使用热成像，一种新的非侵入性的温度测量方法，调查野生蓝山雀（Cyanistes caeruleus）的身体状况，糖皮质激素分泌和体表温度之间的关系。在非繁殖季节和繁殖季节，体型较低的个体眼区表面温度较低。在非繁殖鸟类中，眼区表面温度也与基线循环糖皮质激素水平呈负相关。我们的研究结果表明，体表温度可以整合生理状态的多个方面。因此，远程测量的体表温度可用于评估这些方面的生理状态非侵入性的自由生活的动物在多个生命史阶段。
Body temperature of endotherms shows substantial within- and between-individual variation, but the sources of this variation are not fully understood in wild animals. Variation in body temperature can indicate how individuals cope with their environment via metabolic or stress-induced effects, both of which may relate to depletion of energy reserves. Body condition can reflect heat production through changes to metabolic rate made to protect energy reserves. Additionally, changes in metabolic processes may be mediated by stress-related glucocorticoid secretion, which is associated with altered blood-flow patterns that affect regional body temperatures. Accordingly, both body condition and glucocorticoid secretion should relate to body temperature. We used thermal imaging, a novel non-invasive method of temperature measurement, to investigate relationships between body condition, glucocorticoid secretion and body surface temperature in wild blue tits (Cyanistes caeruleus). Individuals with lower body condition had lower eye-region surface temperature in both non-breeding and breeding seasons. Eye-region surface temperature was also negatively correlated with baseline circulating glucocorticoid levels in non-breeding birds. Our results demonstrate that body surface temperature can integrate multiple aspects of physiological state. Consequently, remotely-measured body surface temperature could be used to assess such aspects of physiological state non-invasively in free-living animals at multiple life history stages.
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影响因子：
2.7
作者：
Jenni-Eiermann, Susanne;Glaus, Esther;Jenni, Lukas
通讯作者：
Jenni, Lukas
影响因子：
5.2
作者：
Clarke, Andrew;Rothery, Peter
通讯作者：
Rothery, Peter
影响因子：
2.5
作者：
Belthoff, JR;Dufty, AM
通讯作者：
Dufty, AM
影响因子：
2.4
作者：
Bonier, Frances;Martin, Paul R.;Wingfield, John C.
通讯作者：
Wingfield, John C.
DOI：
10.1098/rspb.1993.0091
发表时间：
1993-08-23
影响因子：
4.7
作者：
BOOTH, DT;CLAYTON, DH;BLOCK, BA
通讯作者：
BLOCK, BA