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Keywords: photoperiodism
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Journal Articles
J Exp Biol (2023) 226 (23): jeb246308.
Published: 30 November 2023
... areas for further investigation. References Appenroth , D. , Melum , V. J. , West , A. C. , Dardente , H. , Hazlerigg , D. G. and Wagner , G. C. ( 2020 ). Photoperiodic induction without light-mediated circadian entrainment in a High Arctic resident bird . J. Exp...
Journal Articles
J Exp Biol (2021) 224 (23): jeb243030.
Published: 10 December 2021
...Laura van Rosmalen; Roelof A. Hut ABSTRACT Seasonal timing of reproduction in voles is driven by photoperiod. We hypothesized that a negative energy balance can modify spring-programmed photoperiodic responses in the hypothalamus, controlling reproductive organ development. We manipulated energy...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2020) 223 (20): jeb230987.
Published: 21 October 2020
...Laura van Rosmalen; Jayme van Dalum; David G. Hazlerigg; Roelof A. Hut ABSTRACT To optimally time reproduction, seasonal mammals use a photoperiodic neuroendocrine system (PNES) that measures photoperiod and subsequently drives reproduction. To adapt to late spring arrival at northern latitudes...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (16): jeb220699.
Published: 21 August 2020
...Daniel Appenroth; Vebjørn J. Melum; Alexander C. West; Hugues Dardente; David G. Hazlerigg; Gabriela C. Wagner ABSTRACT Organisms use changes in photoperiod to anticipate and exploit favourable conditions in a seasonal environment. While species living at temperate latitudes receive day length...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (Suppl_1): jeb208975.
Published: 1 February 2020
... that photoperiod is an important external cue that stimulates and/or suppresses reproduction in this species. Taking advantage of genomic tools available for this species, the three-spined stickleback will be a good model to investigate what kinds of genes and mutations underlie variations in the physiological...
Journal Articles
J Exp Biol (2017) 220 (17): 3154–3161.
Published: 1 September 2017
..., are responsible for the seasonal decrease in phenotypic flexibility of energy metabolism in photoresponsive mammals. To quantify reaction norms for basal metabolic rate (BMR) and cortisol (CORT) secretion, male Siberian hamsters maintained at a long (16 h:8 h light:dark) photoperiod were acclimated repeatedly...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (3): 412–422.
Published: 1 February 2015
... of Biologists Ltd 2015 Photoperiodism period timeless cryptochrome 2 pigment dispersing factor RNA interference Among insects, diapause is a prominent seasonal response allowing survival during extended periods of unfavorable environmental conditions ( Tauber et al., 1986 ; Danks...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2001) 204 (14): 2535–2541.
Published: 15 July 2001
... wavelengths (400–760nm) for modulating the photoperiodic regulation of its reproductive and immune systems. Ocular lenses from adult hamsters were found to transmit UV-A wavelengths at similar levels to visible wavelengths, with a short-wavelength cut-off of 300nm. Five separate studies compared the responses...