Potential role of frugivorous birds in the recovery process of forest vegetation after feral goat eradication in Mukojima Island, the Bonin Islands

摘要: Some introduced frugivorous birds disperse plants and are thus a substitute for extinct native birds. Introduced have negative and/or infrequently positive effects on local ecosystems. It is important management of the ecosystems to understand relationships between plant species. In this study, we elucidated these in Mukojima Island, Bonin Islands, where was anthropologically deforested Japanese White-eye Zosterops japonicus some were already introduced. We examined habitat selection birds, actual dispersed seeds bird feces, distribution potentially The native, Blue Rockthrush Monticola solitarius, dominant island. former mainly used forest area only small frequently seeds. latter open both large small-seed occurred not but also area. Their seedlings distributed farther from their adult trees than large-seed These indicate that would be more spread because two species different environments. This may vegetation recovery, although it contribute