|| 要旨トップ | 目次 |||日本生態学会第61回全国大会 (2014年3月、広島) 講演要旨
一般講演（口頭発表） G1-18 (Oral presentation)
We studied the effect of the difference in vegetation types on ground-dwelling animal diversity in various taxonomic levels in various spatial scales. In central Japan, spatially structured pitfall traps were set in four vegetation: grassland, natural evergreen coniferous forest, natural deciduous broad-leaved forest and deciduous coniferous plantation. All collected animals were identified into orders, order Coleoptera were identified into families, and family Carabidae were identified into species.
The species-level alpha diversity in narrow spatial scale (4m2) was largest in the coniferous plantation, although those beetle fauna had been regarded poor in evergreen plantations in previous studies. Soil hardness and depth of soil horizon A that negatively affected diversity of Carabidae were lowest in the plantation. However, species-level alpha diversity in broad spatial scale (0.5-1.3 km) was largest in broad-leaved forest, owing to its high beta diversity. In grassland, the species-level alpha diversity was the second highest, while phylum-level alpha diversity was the lowest. In conclusion, we clearly show that what vegetation harbors a higher animal diversity than the others largely depends on spatial scale and taxonomic level that we focus.