Dissertation Research: Mainland vs. California Channel Island Pollination Biology of Two Hummingbird-pollinated Plants: Native Epilobium Canum and Non-native Nicotiana glauca

论文研究：大陆与加州海峡群岛两种蜂鸟授粉植物的授粉生物学：本地柳兰和非本地烟草

• 批准号: 0072951
• 负责人: Beverly Rathcke
• 金额: $ 0.88万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2002-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0072951&HistoricalAwards=false
• 关键词: Dissertation; Research; Mainland; vs.; California

0072951RathckeAlthough we know that plants can respond to selection by pollinators and that for many plants pollinators are critical to successful reproduction, it is not clear a) how high spatio-temporal variation in the pollinators to a given plant in nature can lead to selection of the diversity of floral traits we see today, nor b) how plants will respond to the current "pollination crisis." The purpose of the proposed research is to provide clarification of how plants may be affected in terms of success and evolution by pollinators under a natural situation of pollinator change. This will be achieved by testing the assumed and hypothesized consequences of island colonization for plants from the mainland, using a novel study site, system and combination of research approaches. The pollination biology of plant populations will be compared between mainland and island sits, and it will be determined how patterns in reproductive success depend on the composition and frequency of pollinators and floral and reproductive-assurance traits of study populations. This will be done for each of two hummingbird-pollinated plant species - a native (Epilobium canum) and a widespread invasive (Nicotiana glauca) - that have colonized the California Channel Islands.

Rathcke虽然我们知道植物可以对传粉者的选择做出反应，而且对于许多植物来说，传粉者对成功的繁殖至关重要，但我们并不清楚a）自然界中传粉者对给定植物的时空变化有多高会导致我们今天看到的花性状多样性的选择，也不清楚B）植物将如何对当前的“传粉危机”做出反应。“拟议研究的目的是澄清在传粉者变化的自然情况下，传粉者如何影响植物的成功和进化。这将通过测试假设和假设的后果，岛屿殖民化的植物从大陆，使用一个新的研究地点，系统和研究方法的组合。植物种群的授粉生物学将在大陆和岛屿之间进行比较，并将确定生殖成功的模式如何取决于传粉者的组成和频率以及研究种群的花和生殖保证特征。这将对两种蜂鸟授粉的植物物种--一种是本地的（柳叶菜），另一种是广泛入侵的（烟草）--进行研究，这两种植物已经在加州海峡群岛定居。