Effect of the proportion of impervious surface within 500 m on species occurrence based upon functional traits.

A. Nesting behavior (filled circles and full line  =  cavity-nesting species, open circles and dashed line  =  soil-nesting species); B. Parasitic or host behavior (filled circles and full line  =  parasitic species, open circles and dashed line  =  host species) species; C. Tongue length (filled circles and full line  =  short-tongued species, open circles and dashed line  =  long-tongued species).