Artificial light at night shifts daily activity patterns but not the internal clock in the great tit (Parus major).

ABSTRACT: Artificial light at night has shown a dramatic increase over the last decades and continues to increase. Light at night can have strong effects on the behaviour and physiology of species, which includes changes in the daily timing of activity; a clear example is the advance in dawn song onset in songbirds by low levels of light at night. Although such effects are often referred to as changes in circadian timing, i.e. changes to the internal clock, two alternative mechanisms are possible. First, light at night can change the timing of clock controlled activity, without any change to the clock itself; e.g. by a change in the phase relation between the circadian clock and expression of activity. Second, changes in daily activity can be a direct response to light ('masking'), without any invol

SUBMITTER: Spoelstra K 

PROVIDER: S-EPMC5897635 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature