ReadMe for P.R. Martin and F. Bonier, ms. Species interactions limit the occurrence of urban-adapted birds in cities This readme file describes the variables in the file urban.data.dominance.txt that formed the basis for the above manuscript. The format is tab delimited text file (txt). For any further queries please contact: pm45@queensu.ca Comparison = comparison number, in taxonomic order following Gill, F. & Donsker, D. IOC World Bird List (v 6.2), http://www.worldbirdnames.org/ (2016); rows share the same number when the youngest phylogenetically-independent comparisons involve 3 species (see methods for details) Order = taxonomic order of the focal species pair (following the taxonomy of Gill and Donsker 2016) Family = taxonomic family of the focal species pair (following the taxonomy of Gill and Donsker 2016) Genus = taxonomic genus of the focal species pair (following the taxonomy of Gill and Donsker 2016) Dominant.species = taxonomic species of the behaviourally dominant species in the species pair (following the taxonomy of Gill and Donsker 2016) Subordinate.species = taxonomic species of the behaviourally subordinate species in the species pair (following the taxonomy of Gill and Donsker 2016) dom.win = number of aggressive interactions between the focal species that were won by the dominant species; 'na' refers to cases where quantitative data on aggressive interactions were not available for the species pair; 'playback' refers to cases where the relative dominance relationships among species is known from song playback experiments sub.win = number of aggressive interactions between the focal species that were won by the subordinate species; 'na' refers to cases where quantitative data on aggressive interactions were not available for the species pair; 'playback' refers to cases where the relative dominance relationships among species is known from song playback experiments sum.win = total number of aggressive interactions observed between the focal species (i.e., dom.win + sub.win); 'na' refers to cases where quantitative data on aggressive interactions were not available for the species pair binom.test = P value from a binomial test on the proportion of wins by the dominant species (dom.win) out of the total number of aggressive interactions between the focal species (i.e., sum.win); binomial tests were run in the program R (binom.test; R Core Team. 2016. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL http://www.R-project.org/); 'na' refers to cases where quantitative data on aggressive interactions were not available for the species pair prop.win = the proportion of aggressive contests between the focal species that were won by the dominant species (i.e., dom.win/sum.win) Interaction.data.reference = the reference(s) for data on aggressive interactions Phylogenetic.relationship.reference = the reference(s) for data on the evolutionary relationships among the focal species; this reference was used to identify the focal species pair that were most closely-related, for which we had dominance data; this reference also provides information on the evolutionary independence of each comparison of dominant and subordinate species from other comparisons