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. 2014 Feb 18;4(6):776–793. doi: 10.1002/ece3.972

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© 2014 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Model-averaged predictions for the number of visits made by male ruby-throated hummingbird competitors (NVC) in Cleveland County, Quebec (Canada), 2007–2009, in relation to the spatial concentration of the focal male and (A) the total number of visits by the focal individual, (B) the spatial stability of the focal individual, (C) the number of competitors, and (D) the lateral visibility (meters) and habitat openness (open; gray lines, closed; black lines). Predictions are derived from a linear mixed model with feeder ID and the intercept and slope of spatial concentration for focal individual ID as random effects. The response variable was log-transformed. Other numeric variables were fixed to their mean value, and factors were fixed to their reference level.