Abstract
The influence of habitat isolation on avifauna in urban landscapes, which already has been shown in winter, was examined in breeding season. Using meta-analysis approach considering eleven previous studies, we found that avifauna in species-poorer locations were subsets of those observed in species richer ones. A multiple regression model explaining the number of species except for generalists was constructed including the wooded area and the percentage of urbanized area within the surrounding zone as significant independent variables. As it has already been known that habitats surrounded by urbanized area could easily be isolated, this result indicates that habitat isolation influences on avifauna in urban landscapes in breeding seasons.
