Abstract:
:Individuals of the shore crab Carcinus maenas were exposed to artificial cycles, applied in tidal antiphase, of pairs of the three major environmental variables that entrain circatidal rhythmicity in this species: salinity, temperature, and hydrostatic pressure. During entrainment, the observed locomotor activity patterns were dominated by exogenous responses to high pressure, low temperature, or low salinity. In subsequent constant conditions, many of the crabs showed bimodal circatidal rhythms, with peaks phased to the times of expected high-tide characteristics of high pressure, low temperature, or high salinity. Similar bimodal rhythms were induced by exposing freshly captured crabs, with free-running circatidal rhythms, to tidal antiphase cycles of each of the three environmental variables applied individually. The hypothesis that circatidal rhythmicity in this species is controlled by at least two separate circatidal oscillators, with differential sensitivities to specific cyclical environmental variables, is discussed.
journal_name
J Biol Rhythmsjournal_title
Journal of biological rhythmsauthors
Reid DG,Naylor Edoi
10.1177/074873049000500405subject
Has Abstractpub_date
1990-01-01 00:00:00pages
333-47issue
4eissn
0748-7304issn
1552-4531journal_volume
5pub_type
杂志文章abstract::While the rapid development of personal computers and high-throughput recording systems for circadian rhythms allow chronobiologists to produce huge amounts of data, the software to analyze them often lags behind. Here, we announce newly developed chronobiology software that is easy to use, compatible with many differ...
journal_title:Journal of biological rhythms
pub_type: 信件
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abstract::Numerous studies have demonstrated sleep-promoting effects of melatonin treatment in humans, as evidenced by subjects' self-reports, polysomnographic recordings, and continuous actigraphic registration of motor activity. The sleep-promoting effects of either physiological or pharmacological doses of melatonin typicall...
journal_title:Journal of biological rhythms
pub_type: 杂志文章,评审
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journal_title:Journal of biological rhythms
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730405280458
更新日期:2005-12-01 00:00:00
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journal_title:Journal of biological rhythms
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更新日期:1993-07-01 00:00:00
abstract::Since the advent of techniques to investigate gene expression on a large scale, numerous circadian rhythms in mRNA amount have been reported. These rhythms generally differ in amplitude and phase. The authors investigated how far a parameter not regulated by the circadian clock can influence the phase of a rhythm in R...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730408325753
更新日期:2008-12-01 00:00:00
abstract::Life in the Arctic presents organisms with multiple challenges, including extreme photic conditions, cold temperatures, and annual loss and daily movement of sea ice. Polar bears (Ursus maritimus) evolved under these unique conditions, where they rely on ice to hunt their main prey, seals. However, very little is know...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049000500106
更新日期:1990-04-01 00:00:00
abstract::Obesity during pregnancy causes numerous maternal and fetal health complications, but the underlying mechanisms remain unclear. Adipose tissue dysfunction in obesity has previously been linked to disruption of the intrinsic adipose clock gene network that is crucial for normal metabolic function. This adipose clock al...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
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更新日期:2007-08-01 00:00:00
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730417693124
更新日期:2017-02-01 00:00:00
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journal_title:Journal of biological rhythms
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更新日期:2015-06-01 00:00:00
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journal_title:Journal of biological rhythms
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/0748730408320284
更新日期:2008-08-01 00:00:00
abstract::House sparrows (Passer domesticus) whose circadian rhythms of locomotor activity and feeding had been abolished by pinealectomy were held in constant dim light and periodically exposed to melatonin in the drinking water. By alternating 8 h of melatonin water with variable phases of tap water, rhythms with periods (T) ...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
doi:10.1177/074873049501000305
更新日期:1995-09-01 00:00:00
abstract::How the cellular elements of the SCN are synchronized to each other is not well understood. We explore circadian oscillations manifest at the level of the cell, the tissue, and the whole animal to better understand intra-SCN synchrony and master clock function of the nucleus. At each level of analysis, responses to va...
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pub_type: 杂志文章,评审
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journal_title:Journal of biological rhythms
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journal_title:Journal of biological rhythms
pub_type: 临床试验,杂志文章
doi:10.1177/074873040001500307
更新日期:2000-06-01 00:00:00
abstract::The circadian timing system has three principal elements: the retina, the intergeniculate leaflet (IGL) of the thalamus, and the suprachiasmatic nucleus (SCN). Since the human circadian timing system cannot be studied experimentally, we have used another primate, the macaque monkey, to help provide insight into the or...
journal_title:Journal of biological rhythms
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 00:00:00
abstract::The ventral subparaventricular zone (vSPVZ) receives direct retinal input and influences the daily patterning of activity in rodents, making it a likely candidate for the mediation of acute behavioral responses to light (i.e., masking). We performed chemical lesions aimed at the vSPVZ of diurnal grass rats (Arvicanthi...
journal_title:Journal of biological rhythms
pub_type: 杂志文章
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更新日期:2016-04-01 00:00:00
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journal_title:Journal of biological rhythms
pub_type: 信件
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
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journal_title:Journal of biological rhythms
pub_type: 杂志文章
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