北海道におけるいろいろな森林内のショウジョウバエ類の垂直分布 : I.広葉樹天然林
1977 年 27 巻 3 号 p. 207-214
詳細
1977 年 27 巻 3 号 p. 207-214
TODA, Masanori J. (Zool. Inst., Hokkaido Univ., Sapporo). 1900. Vertical microdistribution of Drosophilidae (Diptera) within various forests in Hokkaido. I. Natural broad-leaved forest. Jap. J. Ecol., 00 : 207-214. To examine the spatial aspect of the ecological structure of drosophilid assemblage, its vertical microdistribution within a natural broad-leaved forest was surveyed from the ground up to the canopy. Basically the assemblage was regarded to be composed of two associations, A) floor (herbaceous layer+shrub 1.) and B) canopy ones. Specific components of A were in general herbage or fungus feeders, while B was characterized by tree sap feeders. It was supposed that the sparse subarboreal layer between canopy and floor was less significant for drosophilid life, being mostly used only at migration. This sandwiched structure exactly corresponds to the vegetation structure.
