...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Ecology >Plant species diversity and genetic diversity within a dominant species interactively affect plant community biomass.
【24h】

Plant species diversity and genetic diversity within a dominant species interactively affect plant community biomass.

机译：优势物种内的植物物种多样性和遗传多样性交互影响植物群落生物量。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Both plant species diversity and genetic diversity within a plant species can affect community properties and ecosystem processes. However, the relative contribution of species diversity and genetic diversity to ecosystem functioning is poorly known. Furthermore, ecosystem processes may respond non-additively to interactions between species diversity and genetic diversity. If interactive effects exist, the impact of biodiversity loss may not be predictable from simple assessments of either species diversity or genetic diversity alone. Here, we addressed how plant species diversity and genetic diversity within a dominant species independently and interactively influenced plant community biomass in a Great Lakes sand dune ecosystem. To test the independent effects of diversity, we established two experiments. In one, we manipulated genetic diversity within the dominant dune species, Ammophila breviligulata. In the other, we manipulated the number of plant species, excluding A. breviligulata. Then, to test for interactive effects, we constructed communities that varied the number of species and levels of genetic diversity within A. breviligulata. Although there were no independent effects of either species diversity or genetic diversity within A. breviligulata on biomass production in this system, interactive effects of species diversity and genetic diversity significantly influenced overall above-ground biomass production of the plant communities. Specifically, as genetic diversity within the dominant species increased, the relationship between species diversity and community-level biomass shifted from negative to positive. Negative non-additive effects of diversity drove this pattern. Synthesis. These results show, for the first time, that interactions between plant species diversity and genetic diversity within a dominant species can alter biomass production, highlighting the importance of incorporating interactions between levels of biodiversity into our understanding of how biodiversity influences ecosystem function.
机译：植物物种内的植物物种多样性和遗传多样性都可能影响社区特性和生态系统过程。然而，鲜为人知的是物种多样性和遗传多样性对生态系统功能的相对贡献。此外，生态系统过程可能对物种多样性和遗传多样性之间的相互作用非累加地响应。如果存在互动影响，单凭对物种多样性或遗传多样性的简单评估就无法预测生物多样性丧失的影响。在这里，我们探讨了优势物种中的植物物种多样性和遗传多样性如何独立和交互地影响大湖沙丘生态系统中的植物群落生物量。为了测试多样性的独立影响，我们建立了两个实验。在其中一项中，我们操纵了主要沙丘物种短孢氨虫中的遗传多样性。在另一种情况下，我们操纵了植物种的数量，但不包括A. breviligulata。然后，为了测试相互作用的影响，我们构建了可改变物种的物种数量和短孢曲霉内遗传多样性水平的社区。尽管在该系统中短孢曲霉内物种多样性或遗传多样性对生物量生产均没有独立影响，但物种多样性和遗传多样性的相互作用影响显着影响了植物群落的整体地上生物量生产。具体而言，随着优势物种内遗传多样性的增加，物种多样性与群落水平生物量之间的关系从负向正转变。多样性的负面非累加效应推动了这种格局。合成。这些结果首次表明，优势物种内植物物种多样性与遗传多样性之间的相互作用可以改变生物量的产生，突显了将生物多样性水平之间的相互作用纳入我们对生物多样性如何影响生态系统功能的理解中的重要性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号