The contribution of seed dispersers to tree species diversity in tropical rainforests.
The contribution of seed dispersers to tree species diversity in tropical rainforests.
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DOI：
10.1098/rsos.150330
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发表时间：
2015-10
影响因子：
3.5
通讯作者：
Yoshimura J
中科院分区：
文献类型：
--
作者：
Kakishima S;Morita S;Yoshida K;Ishida A;Hayashi S;Asami T;Ito H;Miller DG 3rd;Uehara T;Mori S;Hasegawa E;Matsuura K;Kasuya E;Yoshimura J
热带雨林以其极端的生物多样性而闻名，这给热带生态学带来了挑战性的问题。人们提出了许多假说来解释树种的多样性，但我们对这一现象的理解仍然不完整。在这里，我们考虑的贡献，动物种子传播树木的物种多样性。我们建立了一个树木的多层格子模型，其动物种子散布器只允许在有限的区域内移动以散布树木种子。我们将种子传播的影响，在传统理论的异地物种形成的地质时间尺度。我们修改了格子模型，明确检查新树种的共存和由此产生的高生物多样性。结果表明，动物种子传播者的引入可以解释树种的共存和多样性演化。
Tropical rainforests are known for their extreme biodiversity, posing a challenging problem in tropical ecology. Many hypotheses have been proposed to explain the diversity of tree species, yet our understanding of this phenomenon remains incomplete. Here, we consider the contribution of animal seed dispersers to the species diversity of trees. We built a multi-layer lattice model of trees whose animal seed dispersers are allowed to move only in restricted areas to disperse the tree seeds. We incorporated the effects of seed dispersers in the traditional theory of allopatric speciation on a geological time scale. We modified the lattice model to explicitly examine the coexistence of new tree species and the resulting high biodiversity. The results indicate that both the coexistence and diversified evolution of tree species can be explained by the introduction of animal seed dispersers.