アズマネザサの生育に及ぼすニホンジカの影響
THE EFFECTS OF SIKA DEER (CERVUS NIPPON) ON THE GROWTH OF PLEIOBLASTUS CHINO

Seiki TAKATSUKI
1980 Nihon Seitai Gakkaishi  
The EcologicalSociety ofJapan atsmeftsk (Jap. Biological institute, hacutty of Sbience.7bhoku U}tiversity, Slendoi 980 7 Jxk" y * VS if op !llff Pcxesi-gk = ;t; ;x i; Jij op Wrv mritJk\mp#gtktheeag fi-ee nt fe Synepsis TAI[AmsuKi, S. (Biol. Inst., Fac. Sci., Tohoku Univ.). 1980. The effects ofSika deer (Clarvus nippon) on thegrowthofPleioblastuschino.Jap.J.Ecol.30:1-8. Pteioblastus ch ino, one ofthe dwarf bamboos, is an important fbrage plant for the Sika deer on Kinkazan Island, northeastern
more » ... and, northeastern Japan. Sika deer prefers this plant and the leaves arc mostly exhausted in winter. As the result ofthe long-term grazing, P. ehino was reduced in its size and the total standing crop in the grazed plot was by fai: smaller than in the ungrazed plot. However, the following results showed that P. chino was considerably to]erant ofgrazing if the grazing was not excessiyely heavy : (1) the culm density was remarkably high in the grazed plot, (2) the proportion ofIeaf weight was greater in the grazed plot than in the ungTa zed, (3) the P. chino community has been maintained as a biocIimax for these sQme decades. Under heavy grazing conditions, however, the P. chino community was retrogressively replaced by a Zbysia iaponica community. Ihtroduction Since the winter season is critical for the wildlife in temperate and boreal regions, it is of significant importance to reyeal their major forages and the utilization of the plants as food. Rocently some investigators have pointed out that dwarf bamboos
doi:10.18960/seitai.30.1_1 fatcat:2iq2kmpmsbegvhnpl4bcemsjjy