Dissertation Research: Variation in Diet and Functional Morphology Among Populations of Cyprinodon variegatus in the Everglades National Park

论文研究：大沼泽国家公园杂色鲤种群的饮食和功能形态变化

• 批准号: 9600108
• 负责人: Nelson Hairston
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-08-15 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9600108&HistoricalAwards=false
• 关键词: Dissertation; Research; Variation; Diet; Functional; Dissertation; Research; Variation; Diet; Functional

9600108. HAIRSTON Organisms have a wide range of adaptations to life in a changing environment. Among fish, jaw morphology is often related to diet, which varies between seasons and populations. Linking environmental variation with morphological variation can provide insights into the causes of character variation observed in nature. In research funded by this award, killifish (Cyprinodon variegatus) populations on mangrove islands in Florida Bay will be studied to assess the ways in which temporal and spatial variation in diet produce and maintain differences in jaw shape and size. Environmental variation in food resources and food utilization by populations of killifish inhabiting two distinct habitats (bay and island pools) will be documented. Variation in feeding morphology among these populations will then be assayed to elucidate the environmental and genetic contributions to morphological variation. In a related study, the developmental basis of diet-specific feeding efficiency will be assessed. The research will shed light on a longstanding issue in population biology, how morphological variation is produced and maintained in a changing environment. Because such variation provides the fuel for species to cope with environmental change, the research has implications for conservation biology and habitat management.

9600108。在不断变化的环境中，海斯顿生物具有广泛的适应生命。 在鱼类中，下颌形态通常与饮食有关，饮食在季节和人群之间有所不同。 将环境变化与形态变化联系起来可以为自然观察到的特征变异的原因提供见解。在该奖项资助的研究中，将研究佛罗里达湾红树林群岛的Killifish（Cyprinodon variegatus）人群，以评估饮食中的时间和空间变化的方式和颌骨形状和大小的差异。 将记录居住在两个不同的栖息地（海湾和岛屿游泳池）的粮食资源和食品利用方面的环境变化。然后，将分析这些种群中进食形态的变化，以阐明环境和遗传学对形态变异的贡献。在一项相关研究中，将评估饮食特异性喂养效率的发育基础。 这项研究将阐明人口生物学的长期问题，如何在不断变化的环境中产生和维持形态变化。 由于这种变化为应对环境变化的燃料提供了燃料，因此该研究对保护生物学和栖息地管理具有影响。