regulation of stroke pattern and swim speed across a range of current velocities: diving by common eiders wintering in polynyas in the canadian arctic.swim speed during diving has important energetic consequences. not only do costs increase as drag rises non-linearly with increasing speed, but speed also affects travel time to foraging patches and therefore time and energy budgets over the entire dive cycle. however, diving behaviour has rarely been considered in relation to current velocity. strong tidal currents around the belcher islands, nunavut, canada, produce polynyas, persistent areas of open water in the sea ice which are important ha ...200617023591
an assessment of the toxicological significance of anthropogenic contaminants in canadian arctic wildlife.anthropogenic contaminants have been a concern in the canadian arctic for over 30 years due to relatively high concentrations of bioaccumulating and biomagnifying organochlorine contaminants (ocs) and toxic metals found in some arctic biota and humans. however, few studies have addressed the potential effects of these contaminants in canadian arctic wildlife. prior to 1997, biological effects data were minimal and insufficient at any level of biological organization. the present review summarize ...200516154621
pre-laying climatic cues can time reproduction to optimally match offspring hatching and ice conditions in an arctic marine bird.individuals breeding in seasonal environments are under strong selection to time reproduction to match offspring demand and the quality of the post-natal environment. timing requires both the ability to accurately interpret the appropriate environmental cues, and the flexibility to respond to inter-annual variation in these cues. determining which cues are linked to reproductive timing, what these cues are predicting and understanding the fitness consequences of variation in timing, is therefore ...201020632036
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