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首页> 外文期刊>Ecological research >Differences in the fruit removal patterns of Cleyera japonica by frugivorous birds in two forest stands at different developmental stages in a warm-temperate region
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Differences in the fruit removal patterns of Cleyera japonica by frugivorous birds in two forest stands at different developmental stages in a warm-temperate region

机译：两种森林中的Fruvivory鸟类蛋白粳稻果实去除模式的差异在温带温带地区的不同发展阶段站立

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摘要

We investigated the fruit removal patterns of Cleyera japonica by frugivorous birds in two adjacent forest stands at different developmental stages due to secondary succession (a secondary deciduous forest stand, and an evergreen forest stand where evergreen oak is the dominant species) in a warm-temperate region in western Japan. The fruit removal rate was significantly higher in the evergreen forest stand than in the deciduous forest stand, whereas the abundance of C. japonica fruits and that of all fleshy-fruited woody species did not positively affect the fruit removal. However, the Cox proportional-hazards model with mixed effects, using data concerning the disappearing patterns of mature fruits from twigs, implied that the fruit removal of C. japonica by birds within the crown was not significantly different from that between the stands. The timing of seed dispersal of C. japonica was prolonged in the evergreen forest stand compared with that in the deciduous forest stand. In the evergreen forest stand, considerable numbers of seeds were found in seed traps after early January, when almost all the fruits had disappeared from the crown. In the evergreen forest stand, we constantly observed gulpers that are assumed to forage C. japonica fruits frequently on the ground. These results suggested that the differences in the structural attributes between the forest stands influence the bird assemblage and their foraging patterns, which would lead to changes in the fruit removal patterns of C. japonica with the shift of forest stands due to secondary succession.
机译：我们调查了两个相邻的森林中的咖喱蛋白粳稻的果实去除模式，这是由于次级连续（继发落叶林站，常绿橡木是主要物种的常绿橡木的常绿林站）的不同发展阶段。日本西部地区。常绿林立场的水果去除率明显高于落叶林立场，而粳稻果实的丰度和所有肉质劳动的木质物种的丰富率并没有积极影响水果去除。然而，使用关于从树枝上消失的成熟水果的消失的数据的Cox比例危害模型，暗示冠上鸟类在冠上的鸟类去除粳稻的果实除去。与落叶林立场相比，在常绿林立场中延长了C.粳稻的种子分散的时序。在常绿林立场中，1月初之后的种子陷阱中发现了相当数量的种子，当时几乎所有的水果都从皇冠上消失了。在常绿林立场中，我们不断观察到普拉斯经常在地面上觅食粳稻果实。这些结果表明，森林之间结构属性的差异影响了鸟类组合及其觅食模式，这将导致C.粳稻的果实去除模式的变化随着森林的偏移而导致森林的偏移。

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