When the sun never sets: Diverse activity rhythms under continuous daylight in free-living arctic-breeding birds

• Published in: Proceedings of the Royal Society B: Biological Sciences
• Main Authors: Steiger, S., Valcu, M., Spoelstra, K., Helm, B., Wikelski, M., Kempenaers, B.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: 2013
• Subjects: Arctic
• Online Access: http://hdl.handle.net/11858/00-001M-0000-0028-03F5-4