Persistence of circadian activity rhythm
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Rutledge, James T. ;Angle, Marlane J.
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Article
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1977
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John Wiley and Sons
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English
⚖ 718 KB
## Abstract Surgical removal of pineal glands from adult male European Starlings (__Sturnus vulgaris__) does not alter circadian perch‐hopping activity rhythms characteristic of this species maintained in constant darkness. The average free‐running period of the activity rhythms of ten pinealectomi