Studies on the relationship between diversity of avifauna and forest islands remained on transformed hills in suburban area

Abstract

The avifauna in conserved open space, like a green island in developed residential site, was surveyed in the surburban hill land of Tokyo metropolitan area.
The change of avifauna by developing work at natural land and the influence to avifauna by size and structure of open space were analized.
In results, the diversity of species was affected by the distance from the reserved surrounding forest, the condition of forest edge in open space and the management and maintenance of forest floor.
Specially in breeding season, the difference of land use around the green island had a ecological meaning for the avifauna.