... irrespective of the amount of glucose fed. By contrast, free fatty acids (FFAs) and indices of metabolic rate, such as general activity, heart rate, strength of heart rate circadian rhythm, and insulin sensitivity were restored to approximately 50% of active season levels. Body temperature was unaffected...

... acute response to light rather than an endogenous circadian rhythm. Finally, we showed that nocturnality is associated with increased eye size after correcting for evolutionary history, suggesting a link between visual processing and nighttime activity. Together, these findings identify diversity...

... for values. Fig. 4. Effect of the microbiome on the circadian rhythm of adult locomotor activity. (A,B) Actogram (left panels) and autocorrelogram (right panels; periodicity, p, and rhythmicity index, RI, indicated within each panel) for individual axenic (A) and conventional (non-axenic; B...

... in more diverse environments, thereby supporting establishment and colonization. We focused on plasticity in the circadian rhythm of activity, which can favour species coexistence in invasion, for the invasive species Drosophila suzukii , which is expected to be a weaker direct competitor than other...

... Time-memory Circadian rhythm Summary: High experience levels at one food source delay recruitment to another food source at the same time of day but, nevertheless, promote simultaneous time-memories in honey bee foragers. © 2018. Published by The Company of Biologists Ltd 2018 http...

..., daily torpor is typically induced by environmental changes that lead to reduced food intake and/or increased energetic demands. Under these conditions, endogenous circadian rhythms and the timing of food intake are typically synchronized, which would result in daily torpor bouts occurring during...

... by examining: (1) whether those cues direct circadian rhythms, (2) which cue is more dominant and (3) how sensitive developing bees and emergence-ready adults are to cues. Although we found that 20% of light penetrates the brood cell, and bees respond to photoperiod by synchronizing emergence, thermoperiod...

... and circadian clock do not control circannual timing of reproductive phenotypes in spotted munia, suggesting independent circadian and circannual rhythm generation in seasonally breeding species. Circadian rhythm Circannual rhythm Light–dark cycle Moult Spotted munia Lonchura punctulata Testicular...

.... 18 5 2015 8 10 2015 © 2015. Published by The Company of Biologists Ltd 2015 Summary: Elevated daylight activity of female Drosophila suzukii (spotted-wing Drosophila ) is a post-mating response. Sex peptide Fruit fly Pest management Sleep Circadian rhythm...

...-mediated currents by light is dependent on the redox state of the receptor . Eur. J. Neurosci.   17 , 2077 - 2083 . 10.1046/j.1460-9568.2003.02656.x Li , P. , Temple , S. , Gao , Y. , Haimberger , T. J. , Hawryshyn , C. W. and Li , L. ( 2005 ). Circadian rhythms...

...Aaron E. Schirmer; Frederick R. Prete; Edgar S. Mantes; Andrew F. Urdiales; Wil Bogue Many behaviors and physiological processes oscillate with circadian rhythms that are synchronized to environmental cues (e.g. light onset), but persist with periods of ~24 h in the absence of such cues. We used...

... (feeding) hours. Further, a short-term experiment revealed that activity–rest patterns in munia were synchronized with T-photocycles, but were arrhythmic under LL. We conclude that circadian rhythms are not involved in the timing of the annual reproductive cycle in the spotted munia. * Author...

... by The Company of Biologists Ltd 2013 Limulus photoreceptors dark adaptation light adaptation circadian rhythm G q α translocation arrestin translocation opsin expression Dark and light adaptation are processes that change the sensitivity of photoreceptors to light and permit them...

... to support this. In the present study, we examined the effect of selection for adult emergence in a narrow window of time on the circadian rhythms of fruit flies Drosophila melanogaster . Selection was imposed in every generation by choosing flies that emerged during a 1 h window of time close...

... for correspondence ( battelle@whitney.ufl.edu ) 15 4 2010 © 2010. 2010 opsin opsin co-expression Limulus photoreceptor circadian rhythm A long-standing concept in vision science has held that a single photoreceptor expresses a single type of opsin, the protein component of visual...

... that continuous light has on the vertebrae ( Fjelldal et al., 2005 ; Nordgarden et al., 2006 ; Wargelius et al., 2009 ), the induction of eight genes must be regarded as a low number, a number that was even lower in experiment 2. However, much of the effect may have been masked by the circadian rhythm of bone...

...Tine K. Rubow; Andrew H. Bass SUMMARY Seasonal and circadian rhythms control fundamental physiological processes including neural excitability and synaptic plasticity that can lead to the periodic modulation of motor behaviors like social vocalizations. Parental male midshipman fish produce three...

... type I alkaline phosphatase matrix Gla protein photoperiod circadian rhythm In Atlantic salmon ( Salmo salar L.), continuous light has been shown to suppress nocturnal melatonin production and flatten out the diurnal pattern in melatonin secretion observed under natural light conditions...

... condition to prospective mates and competing males. Because the electric signal constitutes a significant fraction of the energy budget, energy savings, along with predation avoidance,provides an adaptive basis for the production of circadian rhythms in electric signals. We partitioned the energy budgets...

... in regulating PDF signals within circadian neural circuits. * Author for correspondence (e-mail: r.e.isaac@leeds.ac.uk ) 4 10 2007 © The Company of Biologists Limited 2007 2007 pigment dispersing factor neprilysin peptidase neuropeptide circadian rhythm Drosophila...