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Causes and consequences of Chinese privet (Ligustrum sinense lour.) invasion in hydrologically altered forested wetlands.

机译:中国女贞(女贞叶)入侵在水文改变的森林湿地中的成因和后果。

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摘要

What drives invasive species success? My research consists of four studies aiming to answer this question for Ligustrum sinense. The four projects are: (1) Synthesis of invasion literature within passenger-driver-backseat driver frameworks; (2) hydrochory investigation of water as a dispersal mechanism for invasion; (3) ecohydrology investigation of inundation effects on seed viability of L. sinense; (4) dendrochronology study of the effects of stream channelization and L. sinense invasion on bottomland oak tree growth. Results suggest that L. sinense initially invaded habitats that were hydrologically altered, resulting in drier conditions and a "novel niche." Dispersal via hydrochory allowed L. sinense to quickly colonize the novel niches. Once established, L. sinense competed with native oak species contributing to reduced growth rates, an "invasion meltdown." Control strategies should aim to remove L. sinense and return natural hydrologic regimes, or should consist of human-assisted re-establishment of native species that can thrive in altered conditions.
机译:是什么驱使入侵物种取得成功?我的研究包括四项旨在回答女贞子问题的研究。这四个项目是:(1)在乘客-驾驶员-后座驾驶员框架内综合入侵文献; (2)水文法研究水作为入侵的扩散机制; (3)生态水文学研究淹没对中华绒螯蟹种子活力的影响; (4)树木年代学研究溪流渠道化和辛辛那提入侵对底层橡树生长的影响。结果表明,中华乳杆菌最初入侵了在水文条件上发生了变化的生境,从而导致了干燥条件和“新生态位”。通过水刺分散可以使辛氏乳杆菌迅速在新的壁ni中定殖。一旦建立,辛香乳与天然橡树种竞争,导致生长率下降,即“入侵崩溃”。控制策略的目标应是消除辛辛那氏菌并恢复自然水文状况,或者应由人类协助重建可以在变化的条件下壮成长的本地物种。

著录项

  • 作者

    Foard, Meghan.;

  • 作者单位

    Arkansas State University.;

  • 授予单位 Arkansas State University.;
  • 学科 Ecology.;Forestry.;Conservation biology.;Environmental science.
  • 学位 M.S.
  • 年度 2014
  • 页码 171 p.
  • 总页数 171
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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