Annual periodicity of fruiting in temperate forests in Yakushima, Japan  

作　　者：Goro HANYA Shin-ichiro AIBA 

机构地区：[1]Primate Research Institute, Kyoto University [2]Faculty of Science, Kagoshima University

出　　处：《Forestry Studies in China》2011年第2期112-122,共11页中国林学（英文版）

基　　金：financed by the Cooperation Research Program of KUPRI;the MEXT Grant-in-Aid for JSPS Fellows, the 21st Century COE Program;Global COE Program "Formation of a Strategic Base for Biodiversity and Evolutionary Research: from Genome to Ecosystem"

摘　　要：Fruiting phenology, assessed by seed fall, in five warm- and cool-temperate forests on Yakushima Island, southern Japan, was studied for two years in one 50 m × 50 m plot and for four years in four 100 m ×50 m plots. The elevation of the plots ranged between 170 and 1200 m a.s.l. Seed fall phenology showed annual periodicity in all five plots. This was clear when assessed by the number of species but became less clear when assessed by the biomass of seed litter. Community-level annual periodicity was based on the prevalence of population-level annual periodicity and interspecific synchronization of the fruiting peak from autumn to winter. Fleshy fruits had peaks of seed fall in a wider range of months than non-fleshy fruits, since it is sometimes beneficial to bear fruit outside the community-level fruiting peaks in order to avoid interspecific competition for animal seed dispersers. No consistent effect of climatic factors on seed fall phenology was detected.Fruiting phenology, assessed by seed fall, in five warm- and cool-temperate forests on Yakushima Island, southern Japan, was studied for two years in one 50 m × 50 m plot and for four years in four 100 m ×50 m plots. The elevation of the plots ranged between 170 and 1200 m a.s.l. Seed fall phenology showed annual periodicity in all five plots. This was clear when assessed by the number of species but became less clear when assessed by the biomass of seed litter. Community-level annual periodicity was based on the prevalence of population-level annual periodicity and interspecific synchronization of the fruiting peak from autumn to winter. Fleshy fruits had peaks of seed fall in a wider range of months than non-fleshy fruits, since it is sometimes beneficial to bear fruit outside the community-level fruiting peaks in order to avoid interspecific competition for animal seed dispersers. No consistent effect of climatic factors on seed fall phenology was detected.

关 键 词：fleshy fruits FRUGIVORE PHENOLOGY temperate forest 

分 类 号：S718.5[农业科学—林学]