Plant genotypic diversity predicts community structure and governs an ecosystem process
Plant genotypic diversity predicts community structure and governs an ecosystem process
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DOI：
10.1126/science.1128326
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发表时间：
2006-08-18
期刊：
影响因子：
56.9
通讯作者：
Sanders, Nathan J.
中科院分区：
文献类型：
--
作者：
Crutsinger, Gregory M.;Collins, Michael D.;Sanders, Nathan J.
理论预测和最近的实证研究表明，植物物种的多样性决定了相关食草动物的多样性，并调节了生态系统过程，如地上净初级生产力（ANPP）。然而，植物多样性的一个经常被忽视的组成部分，即种群基因型多样性，也可能对群落结构和生态系统过程产生广泛的影响。实验结果表明，老田优势植物一枝黄花（Solidago altissima）种群基因型多样性的增加决定了节肢动物多样性和群落结构，并增加了ANPP。基因型多样性对节肢动物多样性和ANPP的影响与其他研究中测量的植物物种多样性的影响相当。
Theory predicts, and recent empirical studies have shown, that the diversity of plant species determines the diversity of associated herbivores and mediates ecosystem processes, such as aboveground net primary productivity ( ANPP). However, an often-overlooked component of plant diversity, namely population genotypic diversity, may also have wide-ranging effects on community structure and ecosystem processes. We showed experimentally that increasing population genotypic diversity in a dominant old-field plant species, Solidago altissima, determined arthropod diversity and community structure and increased ANPP. The effects of genotypic diversity on arthropod diversity and ANPP were comparable to the effects of plant species diversity measured in other studies.