Table 1.
The species, body mass, and dominance rank of passerine birds observed participating in dominance interactions at supplementary feeding stations, in order of decreasing dominance.
The 95% confidence range associated with each estimate of dominance rank is included as an a indicator of uncertainty, estimated using randomised Elo-ratings [34]. Species’ body masses were obtained from Robinson [32].
Fig 1.
The relationship between body mass and dominance rank (±95% CI) of passerines at supplementary feeders.
Dominance rank order has been reversed to illustrate increasing dominance along the y-axis, from least (rank = 10) to most (rank = 1) dominant. Species: (CT) coal tit, (BT) blue tit, (GO) goldfinch, (GT) great tit, (R.) robin, (D.) dunnock, (CH) chaffinch, (NH) nuthatch, (HS) house sparrow, (GR) greenfinch.
Fig 2.
The relationship between dominance rank and food choice across ten passerine bird species.
Dominance rank order has been reversed to illustrate increasing dominance along the x-axis, from least (rank = 10) to most (rank = 1) dominant. Histograms represent the distribution of the underlying data, and the line (± 95% CI, shaded) has been fitted from the minimum model.
Fig 3.
The effect of species dominance on foraging behaviour.
Dominance rank order has been reversed to illustrate increasing dominance along the x-axis, from least (rank = 10) to most (rank = 1) dominant. (a) The relationship between the mean amount of time species spent on supplementary feeders (±SE) and dominance, as a function of food value. (b) The relationship between the mean peck rate of species (±SE) and dominance. Lines and 95% confidence intervals (shaded) are predicted from the minimum models.