Sex-specific, inverted rhythms of breeding-site attendance in an Arctic seabird

@article{Huffeldt2016SexspecificIR,
  title={Sex-specific, inverted rhythms of breeding-site attendance in an Arctic seabird},
  author={Nicholas Per Huffeldt and Flemming Ravn Merkel},
  journal={Biology Letters},
  year={2016},
  volume={12}
}
In contrast to daily rhythms that are common in the presence of the geophysical light–dark cycle, organisms at polar latitudes exhibit many diel activity patterns during natural periods of continuous solar light or darkness (polar day and night, respectively), from 24 h rhythms to arrhythmicity. In Arctic Greenland (73.7° N, 56.6° W) during polar day, we observed breeding-site attendance rhythms of thick-billed murres (Uria lomvia; n = 21 pairs), a charadriiform seabird, which provide… CONTINUE READING
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