Raptor breeding sites indicate high plant biodiversity in urban ecosystems

• Main Authors: Natsukawa, Haruki, Yuasa, Hiroki, Komuro, Shizuko, Fabrizio, Sergio
• Other Authors: European Commission
• Format: Article in Journal/Newspaper
• Language: English
• Published: Nature Publishing Group 2021
• Subjects: Accipiter gentilis; Northern Goshawk
• Online Access: http://hdl.handle.net/10261/254226; https://doi.org/10.13039/501100000780

Preserving biodiversity in urban ecosystems has become an urgent conservation priority, given the rapid upsurge in global urbanization. As woody plants play essential ecological roles and provide psychological benefts to human city dwellers, their preservation is of particular interest to conservation scientists. However, considering that extensive censuses of woody plants are resourceintensive, a key accomplishment is to fnd reliable conservation proxies that can be quickly used to locate biologically diverse areas. Here, we test the idea that sites occupied by apex predators can indicate high overall biodiversity, including high diversity of woody plants. To this end, we surveyed woody plant species within 500 m of Northern Goshawk (Accipiter gentilis) breeding sites in urban ecosystems of Japan and compared them with non-breeding control sites without goshawks. We found that goshawks successfully identifed and signposted high levels of richness, abundance, and diversity of woody plants. Our fndings show that sites occupied by top predatory species could be exploited as conservation proxies for high plant diversity. Due to their exigent ecological requirements, we would expect apex predators to be tied to high biodiversity levels in many other urban ecosystems worldwide. KAKENHI 19J22186 Japanese Society for the Promotion of Science. Feder Founds PGC2018-095860-B-I00 Peer reviewed