植物生态学报 ›› 2002, Vol. 26 ›› Issue (1): 109-114.

• 论文 • 上一篇    下一篇

群落可侵入性及其影响因素

张林艳,叶万辉   

  • 发布日期:2002-01-10
  • 通讯作者: 张林艳

Community Invasibility and Its Influencing Factors

ZHANG Lin-Yan and YE Wan-Hui   

  • Published:2002-01-10
  • Contact: ZHANG Lin-Yan

摘要: 可侵入性用于评价群落易遭受生物入侵的程度,受外来种死亡率、区域气候、干扰水平、生态系统抵抗入侵的能力、本地种竞争和抗干扰能力等因素的影响。当前对群落或区域间可侵入性的比较常以外来种数量或丰度为据,然而这两者仅代表了群落内单一的动态过程,不足以作为衡量群落可侵入性的广泛标准。借助一个描述外来种数量的简单模型阐明,由于影响可侵入性因素的复杂性,各地之间的可侵入性几乎不可比较。并从入侵过程、入侵种特性及本地种、本地群落对入侵的抵抗性几方面对群落可侵入性进行了阐述分析,其中着重介绍入侵生态中几个重要的概念,如可侵

Abstract: The extent to which a community was invaded by alien species is often evaluated by invasibility, which can be affected by the mortality of exotic species, climate, the properties of the native species, the level of disturbance, and the ecosystem's resista