Life History Adaptation in Fishes: Male Mating Strategies in Species with Paternal Care

鱼类的生活史适应：有父亲照顾的物种的雄性交配策略

• 批准号: 8918871
• 负责人: Robert Sargent
• 金额: $ 12.9万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-15 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918871&HistoricalAwards=false
• 关键词: Life; History; Adaptation; Fishes; Male

Evolutionary biologists assume that natural selection molds an organism's phenotype (i.e. morphology, physiology, development, behavior) in such a way that maximizes its survival and reproduction. However, physiological constraints result in a tradeoff between survival and reproduction. This conceptual framework has provided many insights into understanding behaviors associated with survival, such as feeding and predator avoidance, versus behaviors associated with reproduction, such mating and parental care. The proposed research examines physiological tradeoffs between survival and reproduction in fishes, and explores the implications these tradeoffs have for behavior. The PI will examine parental care, adoption, and cannibalism as a suite of reproductive tactics favored by natural selection. The approach is to model the phenomenon mathematically, and to test the model's predictions experimentally. The basic benefit of this research will be new insights into the evolution of morphology, physiology, and behavior. The applied benefits of the research are to fisheries biology and aquaculture, which depend on basic knowledge of life history evolution, toxicology, which uses the same species (the fathead minnow, Pimephales promelas) in bioassays.

进化生物学家认为自然选择塑造了 生物体的表型（即形态，生理， 发展，行为）以这样一种方式，最大限度地提高其生存 和繁殖。 然而，生理限制导致 生存和繁殖之间的平衡。 这个概念 框架提供了许多理解 与生存相关的行为，如进食和捕食 回避，与生殖相关的行为，如 交配和父母照顾 这项拟议中的研究考察了生理上的权衡 生存和繁殖之间的关系，并探讨了 这些权衡对行为的影响。 PI将 研究父母的照顾，收养，食人作为一套 自然选择所青睐的繁殖策略。 的方法 是对这种现象进行数学建模， 模型的预测实验。 这项研究的基本好处将是新的见解， 形态学、生理学和行为的进化。 的 研究的应用效益是渔业生物学， 水产养殖，这取决于生活史的基本知识 进化，毒理学，其中使用相同的物种（傻瓜 米诺鱼（Pimephales promelas）。