Resource allocation to reproductive organs during masting in the tropical emergent tree, Dipterocarpus tempehes
Resource allocation to reproductive organs during masting in the tropical emergent tree, Dipterocarpus tempehes
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DOI：
10.1017/s0266467404002214
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发表时间：
2005-03-01
影响因子：
1.4
通讯作者：
Nakashizuka, T
中科院分区：
文献类型：
--
作者：
Ichie, T;Kenta, T;Nakashizuka, T
一些树种在种子产量上表现出很大的年与年之间的变化，这种现象被称为masting（Kelly 1994，Kelly & Sork 2002）。即使在热带雨林中，气候全年都适合植物生长，季节变化很小（Whitmore 1998），也有许多关于桅杆的报道（Appanah 1993，哈特1995，Newbery等1998，Newstrom等1994，Wheelwright 1986）。特别是东南亚低地龙脑香混交林中的优势科龙脑香科，在季节性的马来西亚西部，随着大量开花和强烈的种间同步，经历了肥大结实（Appanah 1985，1993; Ashton 1989，Ashton等1988，Curran等1999，Janzen 1974，Medway 1972，Sakai等1999，Whitmore 1998，Wood 1956）。在龙脑香混合林中，龙脑香物种贡献了70%以上的树冠生物量（Bruenig 1996，Curran & Leighton 2000）。因此，龙脑香树种的桅杆可能对动物种群产生重大影响，并通过造成资源可用性的波动，对这种森林生态系统的营养循环产生重大影响（Sakai，2002年）。
Some tree species exhibit large year-to-year variation in seed production, a phenomenon known as masting (Kelly 1994, Kelly & Sork 2002). Even in tropical rain forests, in which the climate is suitable for plant growth all year round with little seasonal variation (Whitmore 1998), there are many reports of masting (Appanah 1993, Hart 1995, Newbery et al. 1998, Newstrom et al. 1994, Wheelwright 1986). In particular, Dipterocarpaceae, the dominant family in lowland mixed dipterocarp forests in South-East Asia, undergo mast fruiting following mass-flowering with strong interspecific synchronization in aseasonal western Malesia (Appanah 1985, 1993; Ashton 1989, Ashton et al. 1988, Curran et al. 1999, Janzen 1974, Medway 1972, Sakai et al. 1999, Whitmore 1998, Wood 1956). In mixed-dipterocarp forests, dipterocarp species contribute more than 70% of the canopy biomass (Bruenig 1996, Curran & Leighton 2000). Masting of dipterocarp species is therefore likely to have a major impact on animal populations, and also on the nutrient cycle in such forest ecosystems by causing fluctuations in the availability of resources (Sakai 2002).