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Open AccessThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
Composition of the Zachvatkinia isolata population on arctic skuas (yellow) and long-tailed skuas (blue) collected in Svalbard in 2010 and 2011. M male, F female, T tritonymph, P protonymph, L larva. (Color figure online)