Consequences of interspecific and intraspecific variation in floral scent for pollinator attraction, plant reproduction, and plant-pollinator interaction rewiring

花香的种间和种内变异对传粉媒介吸引、植物繁殖和植物与传粉媒介相互作用重新布线的影响

• 批准号: 2017324
• 负责人: Laura Burkle
• 金额: $ 25万
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2017324&HistoricalAwards=false
• 关键词: Consequences; interspecific; intraspecific; variation; floral

Floral scent varies among flowers of different species. Even different individuals of the same species often have subtly different combinations of chemicals that combine to make up their scent profiles. In this work we will address two questions. First, how do subtle variations in floral scent affect pollinator attraction and subsequent plant reproductive success? Second, are some scent combinations especially attractive to wild bees, thereby giving some flowers better pollination services and a reproductive edge? Answering these questions will shed light on the important ecosystem service provided by pollinators. Specifically, results will provide a better understanding of the role of floral scent in pollinator attraction and the consequences of variation in floral scent for plant success. Further, this research will inform management decisions intended to maintain and restore plant and pollinator communities, especially in the context of environmental change. The results of this work will be broadly disseminated to the public, land managers, and the scientific community. The public will be engaged through National Public Lands Day events and National Pollinator Week events focused on healthy pollinators and pollinator habitat.This project will address these questions in a montane wildflower meadow in Montana, USA. Specifically, the research will investigate the consequences of among-species and among-individual variation in floral scent for pollination services and plant reproduction using naturally-growing plants. Second, the researchers will pilot the use of 3-D printed model flowers for use in experiments that manipulate floral scent. Floral scents from naturally-growing flowers will be applied to 3-D printed model flowers and pollinator attraction to these models will be compared to real flowers with the same floral scents.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

不同品种的花的花香各不相同。即使是同一物种的不同个体，其气味特征也往往具有细微不同的化学物质组合。在这项工作中，我们将解决两个问题。首先，花香的细微变化如何影响传粉媒介的吸引力和随后的植物繁殖成功？其次，某些气味组合是否对野生蜜蜂特别有吸引力，从而为某些花朵提供更好的授粉服务和繁殖优势？ 回答这些问题将有助于了解传粉媒介提供的重要生态系统服务。具体来说，结果将有助于更好地理解花香在授粉媒介吸引中的作用以及花香变化对植物成功的影响。此外，这项研究将为旨在维持和恢复植物和传粉媒介群落的管理决策提供信息，特别是在环境变化的背景下。这项工作的结果将广泛传播给公众、土地管理者和科学界。公众将通过国家公共土地日活动和国家授粉媒介周活动参与其中，重点关注健康授粉媒介和授粉媒介栖息地。该项目将在美国蒙大拿州的山地野花草甸解决这些问题。具体来说，该研究将调查物种间和个体间花香差异对授粉服务和使用自然生长植物的植物繁殖的影响。其次，研究人员将试点使用 3D 打印模型花来进行操纵花香的实验。来自自然生长的花朵的花香将被应用到 3D 打印模型花上，这些模型对传粉者的吸引力将与具有相同花香的真实花朵进行比较。该奖项反映了 NSF 的法定使命，并通过评估被认为值得支持利用基金会的智力优势和更广泛的影响审查标准。