Measuring the covariance between sensory systems and behavior: testing the assumptions of the sensory bias and sensory exploitation hypotheses

测量感觉系统和行为之间的协方差：测试感觉偏差和感觉利用假设的假设

• 批准号: 0445127
• 负责人: Rebecca Fuller
• 金额: $ 40.35万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2006-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0445127&HistoricalAwards=false
• 关键词: Measuring; covariance; between; sensory; systems

Males of many species possess extravagant, brightly colored structures that are costly to produce and that increase their likelihood of being seen and eaten by predators. One of the great problems of evolutionary biology is understanding why females select for such extravagant traits in males. The "sensory bias hypothesis" states that female mating preferences are by-products of natural selection on the sensory system. Under this hypothesis, strong natural selection on animals to find food, avoid predators, and find proper habitats results in indirect selection on mating preferences. The fundamental assumption of this hypothesis is that the genes (and neurological pathways) that affect foraging preferences also affect mating preferences. This project will determine the extent to which different behaviors that share a common sensory system can evolve independently. The objective of the study will be to determine if behaviors share a common sensory system and/or does variation in the sensory system lead to variation in behavior. To address these questions, large amounts of phenotypic variation in visual properties will be generated and multiple aspects of behavior will be measured using the bluefin killifish, Lucania goodei, a species previously demonstrated to have large amounts of variation in visual properties both within and between populations. Broader Impacts: The study will provide the graduate student and several undergraduates experience with a variety of techniques drawn from many disciplines. This project involves the collaboration of evolutionary biologists and molecular biologists/vision physiologists that will help build connections between the evolutionary biology group within the Biological Science Department and other groups, particularly the university-wide Program in Neuroscience. The project should demonstrate that studying natural variation in vision physiology is a worthwhile endeavor, while developing further insights into the evolution of vision physiology.

许多物种的雄性具有奢华，鲜艳的结构，这些结构的生产成本很高，并且增加了被掠食者看到和食用的可能性。 进化生物学的最大问题之一是了解为什么女性选择男性中这种奢侈的特征。 “感觉偏见假设”指出，女性交配偏好是感觉系统自然选择的副产品。 在这一假设下，对动物寻找食物，避免捕食者并找到适当栖息地的强烈自然选择会导致对交配偏好的间接选择。 该假设的基本假设是影响觅食偏好的基因（和神经系统途径）也会影响交配偏好。该项目将确定共享共同感官系统的不同行为可以独立发展。 该研究的目的是确定行为是否共享常见的感觉系统和/或在感觉系统中确实会导致行为变化。 为了解决这些问题，将产生大量的视觉特性表型变化，并使用蓝鳍金枪鱼lucania goodei来衡量行为的多个方面，以前证明，这种物种在人群内部和种群之间都具有大量的视觉特性变化。 更广泛的影响：这项研究将为研究生和几个大学生提供从许多学科中汲取的各种技术。 该项目涉及进化生物学家和分子生物学家/愿景生理学家的合作，这些合作将有助于建立生物科学系中进化生物学小组与其他群体（尤其是大学范围内神经科学计划）之间的联系。 该项目应证明，研究视力生理学的自然变化是值得的努力，同时进一步了解视力生理的演变。