Keeping the clock set under the midnight sun: diurnal periodicity and synchrony of avian Isospora parasites cycle in the High Arctic.

@article{Dolnik2011KeepingTC,
  title={Keeping the clock set under the midnight sun: diurnal periodicity and synchrony of avian Isospora parasites cycle in the High Arctic.},
  author={Olga V. Dolnik and Benjamin Metzger and Maarten J. J. E. Loonen},
  journal={Parasitology},
  year={2011},
  volume={138 9},
  pages={1077-81}
}
For Isospora (Protozoa: Eimeriidae) parasites of passerine birds, diurnal periodicity of oocyst output is a well-described phenomenon. From the temporal zone to the tropics, oocyst production is correlated with the light-dark cycle, peaking in the afternoon hours. However, nothing is known about the existence of diurnal periodicity of these parasites in the birds of High Arctic environments, under permanent light during summer. We sampled free-ranging Snow Bunting (Aves: Passeriformes), on… CONTINUE READING

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