Linking Pollination and Herbivory: Selection from Herbivores on a Flower Color Polymorphism

连接授粉和草食：草食动物对花颜色多态性的选择

• 批准号: 9807083
• 负责人: Sharon Strauss
• 金额: $ 30万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9807083&HistoricalAwards=false
• 关键词: Linking; Pollination; Herbivory; Selection; Herbivores

StraussDEB - 9807083Traits expressed by species within a community reflect an integration ofselection pressures from a variety of biotic and abiotic sources. Thisproject would integrate the different selective pressures imposed by bothherbivores and pollinators in evaluating the general features of planttraits. It will focus specifically on flower color, which hastraditionally been thought to respond primarily to pollinators. This workwill investigate a California wild radish that exhibits three color morphsand for which preliminary data indicate that antagonistic herbivores may beexerting selective pressures on flower colors in addition to pollinatorresponses. Pollination and herbivory rates will be documented in fieldstudies of the three-color morphs that occur in the study area. Thisinformation will be combined with field and greenhouse experiments thatwill examine herbivore preferences and plant performances relative tocolor. This work will illustrate how understanding the maintenance ofgenetic diversity at microevolutionary scales can be related to thegeneration of Biological diversity at macroevolutionary scales.

StraussDEB -9807083群落内物种表达的性状反映了来自各种生物和非生物来源的选择压力的综合。 该项目将综合草食动物和传粉者施加的不同选择压力来评估植物性状的一般特征。 它将特别关注花的颜色，这一直被认为主要是对传粉者的反应。 这项工作将调查一个加州野生萝卜，表现出三种颜色的morphs和初步数据表明，拮抗性食草动物可能施加选择压力，除了传粉者的反应。 在研究区域发生的三色变体的实地研究中，将记录波利尼西亚和草食动物的比率。 这些信息将与田间和温室实验相结合，这些实验将研究食草动物的偏好和植物相对于颜色的表现。 这项工作将说明如何理解在微观进化尺度上的遗传多样性的维护可以与宏观进化尺度上的生物多样性的产生。