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DOI:	10.1371/journal.pone.0140500
论文题名:	Nocturnal to Diurnal Switches with Spontaneous Suppression of Wheel-Running Behavior in a Subterranean Rodent
作者:	Patricia Tachinardi; Øivind Tøien; Veronica S. Valentinuzzi; C. Loren Buck; Gisele A. Oda
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-10-13
卷:	10, 期:10
语种:	英语
英文关键词:	Respirometry ; Body temperature ; Rodents ; Oxygen consumption ; Circadian rhythms ; Humidity ; Running ; Government laboratories
英文摘要:	Several rodent species that are diurnal in the field become nocturnal in the lab. It has been suggested that the use of running-wheels in the lab might contribute to this timing switch. This proposition is based on studies that indicate feed-back of vigorous wheel-running on the period and phase of circadian clocks that time daily activity rhythms. Tuco-tucos (Ctenomys aff. knighti) are subterranean rodents that are diurnal in the field but are robustly nocturnal in laboratory, with or without access to running wheels. We assessed their energy metabolism by continuously and simultaneously monitoring rates of oxygen consumption, body temperature, general motor and wheel running activity for several days in the presence and absence of wheels. Surprisingly, some individuals spontaneously suppressed running-wheel activity and switched to diurnality in the respirometry chamber, whereas the remaining animals continued to be nocturnal even after wheel removal. This is the first report of timing switches that occur with spontaneous wheel-running suppression and which are not replicated by removal of the wheel.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0140500&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/22616
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0140500.PDF（1366KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil;Institute of Arctic Biology, University of Alaska, Fairbanks, United States of America;Centro Regional de Investigaciones Científicas y Transferencia Tecnológica (CRILAR), La Rioja, Argentina;Department of Biological Sciences, University of Alaska, Anchorage, United States of America;Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil

Recommended Citation:

Patricia Tachinardi,Øivind Tøien,Veronica S. Valentinuzzi,et al. Nocturnal to Diurnal Switches with Spontaneous Suppression of Wheel-Running Behavior in a Subterranean Rodent[J]. PLOS ONE,2015-01-01,10(10)

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