Sources of variation in endohelminth parasitism of common eiders over-wintering in the Canadian Arctic

Documenting how climate change will affect Arctic ecosystems and food web dynamics requires an understanding of current sources of variation in species distributions, frequency, and abundance. Host–parasite interactions are expected to be altered in the coming decades under warming conditions. However, in many Polar Regions, there is little information describing parasite–host assemblages. We examine how gastrointestinal helminths of northern...