Key Biodiversity Areas identification in Japan Hotspot

Priority sites within Japan Hotspot were identified using Key Biodiversity Area (KBA) criteria, based on vulnerability and irreplaceability. The identification process considered 217 trigger species from mammals, birds, reptiles, amphibians, freshwater and brackish water fishes and odonates, and focused on identifying gaps in Japan’s protected-area system. We identified 228 sites as KBAs and 50 rivers as candidate KBAs. Collectively, KBAs occupy 18% of the land, about half is not protected. Sites selected include natural and semi-natural environments, and appropriate form of protection is site-dependent. Twenty percent of Japanese terrestrial area is already protected, although to varying degrees, but additional 8% should also receive protection or proper management to strengthen the conservation of biodiversity in Japan.