Wings over the city: avian and butterfly diversity across a gradient of anthropogenic disturbance

Urban Farm DB summary

In Bologna, Italy, data on bird and butterfly communities were analyzed across an anthropogenic disturbance gradient encompassing urban, agricultural, and semi-natural contexts. The study found the highest species richness and diversity in peri-urban areas with natural and semi-natural habitats, while dense built-up areas supported fewer, mostly generalist species. Agricultural areas favored birds but not butterflies, and continuous urban cover, discontinuous high-density urban areas, distance to streets, and wood coverage were identified as main drivers of diversity.