Comparisons of Dispersal Success between the Species Fruiting Prior to and Those at the Peak of Migrant Frugivore Abundance
Comparisons of Dispersal Success between the Species Fruiting Prior to and Those at the Peak of Migrant Frugivore Abundance
复制标题
DOI：
10.1007/s11258-005-5914-4
复制
发表时间：
2005-12
期刊：
影响因子：
1.7
通讯作者：
G. Hanya
中科院分区：
文献类型：
--
作者：
G. Hanya
我评估了植物是否获得高传播的成功同步其结果与食果动物丰富。两年来，在屋久岛的山地森林中，研究了果物候，食果鸟类丰度的季节性波动，以及鸟类和日本猕猴（Macaca fuscataBlyth）对水果的消费。在社区水平上，结果物候和食果鸟类丰度的季节性波动是异步的，因为Zosterops japonicaTemminck et Schlegel，一个居民食果动物，在结果季节数量减少。此外，山矾（Symplocos myrtaceaSieb.）et Zucc.在9月结果，在食果鸟类（Turdusspp.）迁徙之前。和褐耳鳞茎（Hypsypetes amaurotis Temminck）。本文还对其它果树种（Eurya japonicaThunb.）和青冈Sieb. et Zucc）与迁徙的食果鸟类同步。与迁徙食果动物丰度同步的物候期的水果物种具有较高的传播成功率，无论是通过鸟类（C。japonica）或猕猴（E. japonica）。猕猴早于大多数的种子S。桃金娘科S.桃金娘科植物在鸟类和猕猴中的分布较低，因此S.桃金娘似乎不是一种适应，以最大限度地提高扩散的成功，通过依赖居民扩散或避免激烈的竞争扩散。
I evaluated whether plants gain high dispersal success by synchronizing their fruiting with frugivore abundance. Fruiting phenologies, seasonal fluctuations in the abundance of frugivorous birds, and consumption of fruits by birds and Japanese macaques,Macaca fuscataBlyth, were studied in the montane forest of Yakushima for two years. At the community level, fruiting phenologies and seasonal fluctuations in frugivorous bird abundance were asynchronous becauseZosterops japonicaTemminck et Schlegel, a resident frugivore, decreased in number during the fruiting season. In addition,Symplocos myrtaceaSieb. et Zucc. fruited in September, before the migration of frugivorous birds (Turdusspp. and brown-eared bulbulsHypsypetes amaurotisTemminck) in November and December. The phenology of other fruit species (Eurya japonicaThunb. andCleyera japonicaThunb.p.p.emend. Sieb. et Zucc) were synchronized with migrant frugivorous birds. Fruit species with phenologies that are synchronized with migrant frugivore abundances have higher dispersal success either by birds (C. japonica) or macaques (E. japonica). Macaques predated most of the seeds ofS. myrtacea. Dispersal success ofS. myrtaceais low both by birds and macaques, thus the early fruiting byS. myrtaceadoes not seem to be an adaptation to maximize dispersal success by depending on resident dispersers or by avoiding intense competition for dispersers.