Influence of the invasion of Leiothrix lutea on a native avifauna in a natural beech forest on Mt. Karimata, Kyushu

Sato Shigeho
2006 Bulletin of FFPRI )   unpublished
Bird censuses were carried out in four breeding seasons, 1992-1995, in a natural beech forest on Mt. Karimata, Kumamoto Prefecture, western Japan. The Red-billed Leiothrix Leiothrix lutea has invaded there a few years before. The density fluctuations of species possibly competing with the Red-billed Leiothrix were studied. Thirty-three bird species were recorded. the Red-billed Leiothrix already colonized there, whereas the Bush Warbler Cettia diphone decreased in number. The density of the
more » ... Tit P. ater was stable, but that of the Great Tit Parus major fluctuated.