Fences to prevent incursion of alien species

Fences to prevent invasion by green anoles, which prey on rare insects such as Celastrina ogasawaraensis, has been installed at Shinyuhigaoka on Hahajima Island, and capturing anoles using adhesive traps within the fence is underway.
At Minamizaki on Hahajima, where is a breeding ground for seabirds such as the brown booby, feral cat fences have been installed to prevent feral cats from entering the area.