首页> 外文学位 >Investigating the population biology of an invasive plant species, Phragmites australis, in its native and non-native ranges.
【24h】

Investigating the population biology of an invasive plant species, Phragmites australis, in its native and non-native ranges.

机译:研究本地和非本地侵入性植物物种芦苇的种群生物学。

获取原文
获取原文并翻译 | 示例

摘要

This thesis examines the genetic and ecological components of an invasive plant, P. australis (haplotype M), in both its native and non-native ranges. The first objective of this study was to identify whether stands of P. australis occupy a wide range of habitats in its native range, Great Britain, as a result of local adaptations or as a result of broad environmental tolerances. The second objective of this study was to explore within and between population structure using molecular data and to make inferences on life history traits utilized by invasive stands of P. australis in North America. Analyses support the conclusion that in Great Britain P. australis has broad environmental tolerances and can respond in a plastic manner to at least some key environmental variables. In North America the analyses highlight two important life history traits previously poorly understand; reproduction and dispersal. These data provide insights into processes that may have facilitated the invasion of P. australis into North America and may prove useful in the conservation of P. australis in Great Britain where reedbeds are in decline.;Keywords: Invasive species, population genetics, Phragmites australis , life history traits, sexual reproduction, seed dispersal.
机译:本文研究了入侵植物P. australis(单倍型M)的遗传和生态成分,包括其原生和非原生范围。这项研究的第一个目标是确定由于当地的适应性变化或广泛的环境耐受性,澳大利亚假山梨的林分在其本土范围英国中是否占据了广泛的栖息地。这项研究的第二个目标是利用分子数据探索种群结构之内和之间,并推断北美P. australis入侵林所利用的生活史特征。分析支持这样的结论:在英国,澳大利亚假单胞菌具有广泛的环境耐受性,并且可以对至少一些关键环境变量做出可塑性反应。在北美,分析突出显示了人们以前不太了解的两个重要的生活史特征:复制和传播。这些数据提供了对可能促进澳大利亚假单胞菌入侵北美的过程的深入见解,并可能被证明对保留芦苇床数量下降的英国的澳大利亚假单胞菌有用。;关键词:入侵物种,种群遗传学,芦苇,生活史特征,有性生殖,种子传播。

著录项

  • 作者

    Paul, Jennifer.;

  • 作者单位

    Trent University (Canada).;

  • 授予单位 Trent University (Canada).;
  • 学科 Biology Genetics.
  • 学位 M.Sc.
  • 年度 2010
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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