Pollination in a changing environment

在不断变化的环境中授粉

• 批准号: 435988-2013
• 负责人: Forrest, Jessica
• 金额: $ 1.89万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=552960
• 关键词: Pollination; changing; environment

My research addresses the effects of environmental change--especially climate change--on pollinators and the plants they visit. Using observations and experiments in the Rocky Mountains, my students and I will investigate the consequences of climate variation for populations of wild, native bees. In particular, we will study how temperature fluctuations and reductions in snow cover affect bee survival and the availability of bees' floral food sources. Because climate change could cause certain plants to become scarce or to flower too early for the bees that depend on them, we will also study the factors that determine bees' willingness to adopt new types of plants as pollen sources. We will use our results in combination with mathematical models to test how different climate-change scenarios will affect bee populations. We will also examine the relationship between environmental change and pollination over long time-scales by studying whether evolutionary shifts in flowering time in a group of related plants have been associated with evolutionary changes in floral biology.

我的研究涉及环境变化——尤其是气候变化——对传粉昆虫和它们所拜访的植物的影响。通过在落基山脉的观察和实验，我和我的学生将调查气候变化对野生本地蜜蜂种群的影响。特别是，我们将研究温度波动和积雪减少如何影响蜜蜂的生存和蜜蜂的花卉食物来源的可用性。由于气候变化可能导致某些植物变得稀缺，或者对依赖它们的蜜蜂来说太早开花，我们还将研究决定蜜蜂是否愿意采用新型植物作为花粉来源的因素。我们将把我们的结果与数学模型结合起来，测试不同的气候变化情景将如何影响蜜蜂种群。我们还将通过研究一组相关植物开花时间的进化变化是否与花生物学的进化变化有关，来研究长期尺度上环境变化与授粉之间的关系。