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gcb2541-sup-0001-AppendixS1.docWord document70KAppendix S1. Model-averaged parameter values for population models that relate population density of four species of ducks to effects of density dependence and of annual snow cover duration, based on population data for 19 survey strata in the western boreal forest, 1973–2007.
gcb2541-sup-0002-AppendixS2.docWord document42KAppendix S2. Supplementary analyses for the Scoter Time Series.

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