Dissertation Research: Impacts of an invasive plant, amur honeysuckle (Lonicera maackii: Caprifoliaceae), on biodiversity through biotic interactions

论文研究：入侵植物阿穆尔金银花（Lonicera maackii：忍冬科）通过生物相互作用对生物多样性的影响

• 批准号: 0710341
• 负责人: Robert Marquis
• 金额: $ 1.2万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-15 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0710341&HistoricalAwards=false
• 关键词: Dissertation; Research; Impacts; invasive; plant

This project addresses impacts of the invasive shrub, Amur honeysuckle (AH), on pollination in native species, seed predation by rodents, and seed dispersal by birds and rodents. This project will test: 1) if AH distracts pollinators (bees, butterflies, and moths) from visiting native plants; 2) if AH fruits and cover of leaves influence the abundance of white-footed mice, important seed predators; and 3) if AH distracts seed dispersers from attending native species. A combination of natural experiments (i.e., where abundance of AH differs naturally) and manipulative experiments (i.e., where AH is removed from large tracts) will be used to determine how this invasive shrub influences processes that maintain native plant and animal populations. Invasive species are very significant threat to biological diversity, costing over $137 billion/year for control in the U.S. Investigating the effects of invasives provides vital information for their eradication and reduction of their economic impacts. If the stated predictions are confirmed, invasive species should be considered more of a threat than previously thought, because they have less obvious indirect effects on native diversity through their impacts on pollination and seed dispersal processes. Because of the large scale of the project, many high school and undergraduate students will be trained in basic ecological and conservation theory and field methods.

该项目旨在解决入侵灌木阿穆尔金银花 (AH) 对本地物种授粉、啮齿动物捕食种子以及鸟类和啮齿动物种子传播的影响。该项目将测试：1）AH 是否会分散传粉媒介（蜜蜂、蝴蝶和飞蛾）访问本地植物的注意力； 2) 果实和树叶覆盖是否影响重要种子捕食者白足鼠的丰度； 3) 如果 AH 分散了种子传播者对本地物种的注意力。自然实验（即，AH 丰度自然不同）和操纵实验（即，从大片土地中去除 AH）的结合将用于确定这种入侵灌木如何影响维持本地植物和动物种群的过程。 入侵物种对生物多样性构成非常重大的威胁，在美国，每年用于控制的成本超过 1,370 亿美元。调查入侵物种的影响为根除入侵物种和减少其经济影响提供了重要信息。如果上述预测得到证实，那么入侵物种的威胁应该比之前想象的更大，因为它们通过影响授粉和种子传播过程对本地多样性产生不太明显的间接影响。由于该项目规模庞大，许多高中生和本科生将接受基本生态和保护理论和实地方法的培训。