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The relationship between biodiversity and ecosystem function in a coastal wetland.

机译：沿海湿地生物多样性与生态系统功能之间的关系。

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摘要

Despite reductions in species diversity, few studies in wetlands investigate the relationship between biodiversity and ecosystem function (BEF). My research explores the BEF relationship in a recently restored salt marsh in Long Beach, California. I hypothesized that: (1) increasing plant diversity would result in higher primary productivity and decreased recruitment of native salt marsh plants, (2) observed variation in responses would be correlated with species-specific variation in individual demographic parameters, and (3) variation in demographic parameters and resulting ecosystem processes would be correlated with functional traits. I found that while survival over one year was correlated with elevation, overall percent cover and recruit species richness were positively affected by diversity. Performance patterns reveal variation by species in photosynthetic rate, leaf mass per area and chlorophyll a/b ratios. After one year, I found that the overall diversity patterns were driven by selection effect compared to complementarity.
机译：尽管物种多样性有所减少，但在湿地中很少有研究调查生物多样性与生态系统功能（BEF）之间的关系。我的研究探索了加利福尼亚长滩最近恢复的盐沼中的BEF关系。我假设：（1）植物多样性的增加将导致更高的初级生产力和本地盐沼植物的减少招募，（2）观察到的响应差异将与个体人口参数中特定物种的差异相关，以及（3）差异人口参数的变化以及由此产生的生态系统过程将与功能性状相关。我发现，虽然一年以上的生存与海拔高度相关，但总体覆盖率和新兵物种丰富度却受到多样性的积极影响。表现模式揭示了光合速率，单位面积叶片质量和叶绿素a / b比例随物种的变化。一年后，我发现总体多样性模式是由选择效应而非互补效应驱动的。

著录项

  • 作者

    Fitzgerald, Megan.;

  • 作者单位

    California State University, Long Beach.;

  • 授予单位 California State University, Long Beach.;
  • 学科 Biology Ecology.;Biology Oceanography.;Biology Conservation.
  • 学位 M.S.
  • 年度 2015
  • 页码 77 p.
  • 总页数 77
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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