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day length
(redirected from Daylength)

    Also found in: Wikipedia 0.01 sec.
day length
the number of daylight hours per day, increasing towards midsummer and the reverse towards midwinter. The effective trigger in the commencement and cessation of the breeding seasons in those species that demonstrate seasonal breeding.
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The days of shortening daylength inform the plant to prepare for the stresses of the coming winter, when moisture (because of frozen ground) will be in limited supply.
Needle browning natural for fall by Telegram & Gazette (Worcester, MA)
Foster says VA opsin is absent in all mammals including humans, probably because our ancestors were nocturnal and a photoreceptor buried deep into the brain would not be sensitive enough to detect daylength.
Why the 'birds and the bees' get sexed up in spring by Asian News International
In spring, the bluefish in the present study accelerated their swimming speed in response to the cue of increased daylength, without any cue of increased temperature.
Effects of seasonal change on activity rhythms and swimming behavior ... by Stehlik, Linda L. / Fishery Bulletin
 
 
 
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