Functions of Conspicuous Coloration in Fish

鱼类显色的功能

• 批准号: 8808109
• 负责人: Astrid Kodric-Brown
• 金额: $ 8.69万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8808109&HistoricalAwards=false
• 关键词: Functions; Conspicuous; Coloration; Fish

The function of conspicuous coloration displayed by breeding males of many different species has been a topic of much speculation in biology, but little solid evidence has yet been obtained. Dr. Kodric-Brown will perform experiments to investigate the function of the bright blue breeding coloration of male pupfish. Only males with breeding territories develop this coloration and reproduce. The blue breeding coloration may serve two functions: (1) facilitate acquisition and defense of a breeding territory through competition with other males, and (2) attract females to a male's territory. Dr. Kodric-Brown will introduce already-breeding males with well- developed breeding coloration and non-breeding males lacking this coloration into large tanks. She will experimentally manipulate (a) material on the bottom of the tank, to determine the importance of suitable breeding substrate for the development of breeding coloration, (b) competitive interactions among males, to determine the importance of dominance in the development of breeding coloration, and (c) female spawning behavior, to determine how male breeding coloration influences female choice of particular males. Also, the appearance of males will be experimentally altered by dyeing them with a blue dye. This study will provide insights into the types of traits important in mate recognition and male dominance, and the underlying mechanisms that are responsible for their development. Such traits act as important social signals and are virtually ubiquitous in sexually reproducing organisms. They are especially important in preventing hybridization, thus maintaining the integrity of species in our rapidly deteriorating aquatic environments.

显色在育种中的作用 许多不同物种的雄性一直是一个话题 生物学上的猜测，但很少有确凿的证据， 得到了 柯德瑞克-布朗博士将进行实验， 雄性鳉鱼的亮蓝色繁殖色的功能。 只有拥有繁殖领地的雄性才会发展出这种颜色， 繁殖。 蓝色的繁殖色可能有两个功能： (1)促进繁殖领地的获得和防御 通过与其他雄性的竞争，（2）吸引雌性 男性的领地。 柯德里克-布朗博士将介绍已经繁殖的雄性 发展出了繁殖色，而非繁殖雄性缺乏这种颜色 大罐的颜色。 她会通过实验 (a)在坦克底部的材料，以确定 合适的育种基质对发展的重要性 繁殖色，（B）雄性之间的竞争性相互作用， 确定优势在发展中的重要性 繁殖颜色，和（c）女性产卵行为， 确定雄性繁殖颜色如何影响雌性选择 特定的男性。 此外，男性的外观将是 通过用蓝色染料染色来实验性地改变它们。 这项研究将提供有关特征类型的见解 在配偶识别和雄性统治中起着重要作用， 负责其发展的基本机制。 这些特征作为重要的社会信号， 在有性繁殖的生物体中普遍存在。 他们是 在防止杂交方面尤其重要，因此， 在我们迅速恶化的环境中维持物种的完整性 水生环境