Doctoral Dissertation Research: The Occurrence of Herbaceous Alien Plant Species with Respect to Environmental Stress and Anthropogenic Influences on the Georgia Sea Islands

作者声明：John C. 格鲁吉亚大学 博士论文的研究将探讨人为干扰和环境压力的影响发生草本外来植物物种的格鲁吉亚海岛。 由于人类使用的强度和紧张的栖息地的存在，屏障岛屿为研究这些关系提供了理想的环境。 将在四个岛屿中的每一个岛屿上根据人类活动水平、环境压力水平和生境类型分类的地点对植被组成和环境压力变量进行取样。 将使用析因设计和方差分析模型来检验这些效应。 还将确定外来物种分布的总体描述模式。 这项研究将有助于管理人员和政府机构，但在理论意义上将提供新的结果之间的关系，人类干扰和环境压力社区入侵。

Rodgers III, John C. University of Georgia The doctoral dissertation research will examine the effects of anthropogenic disturbance and environmental stress on the occurrence of herbaceous alien plant species on the Georgia Sea Islands. The barrier islands provide an ideal environment for examining these relationships because of the intensity of human use and the presence of stressful habitats. Vegetation composition and environmental stress variables will be sampled in sites categorized according to human modification level, environmental stress level and habitat type on each of four islands. A factorial design and analysis of variance model will be used to test these effects. Overall descriptive patterns of alien species distribution will be identified as well. The study will be of use to managers and government agencies but in a theoretical sense will provide new results on the relationship between human disturbance and environmental stress to community invasibility.