项目名称: 高寒环境下山噪鹛生活史研究
项目编号: No.31301889
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 生物科学
项目作者: 宋森
作者单位: 兰州大学
项目金额: 25万元
中文摘要: 繁殖是动物生活史最重要的组成部分,繁殖策略是动物在长期自然选择作用下形成的对环境因子的预判与适应。在繁殖过程中,亲代与子代之间为实现各自最大适合度所产生的矛盾称为亲子冲突。作为亲-子冲突理论的重要组成部分,在育雏期亲本采取的递食策略和后代的同胞竞争一直是行为生态学、社会生物学等研究领域的焦点。本项目将对我国特有鸟种- - 山噪鹛(Garrulax davidi)在高寒环境下的生活史进行研究。围绕鸟类行为生态学中两个重要的方面:亲本的递食策略和雏鸟的同胞竞争进行研究。通过对山噪鹛亲鸟卵大小策略、亲鸟孵卵行为、雏鸟的生长发育规律、亲本递食偏好与亲权的关系、亲本递食模式与同胞竞争的关系和是否性别和巢的性比决定了雏鸟出飞的时间和顺序,以及和雏鸟出飞时间和顺序相关的巢的特征和个体特征的研究,揭示山噪鹛在生活史各阶段采取的对策。项目将为鸟类行为进化及动物社会行为的研究提供新的素材,并将丰富鸟类生活史研究。
中文关键词: 山噪鹛;生活史;亲本递食策略;亲子冲突;同胞竞争
英文摘要: Reproduction is the most important component in animal life history,reproduction strategy is one kind of abilitieds shaped by natural selection to predict and adapt to various environmental factors so that animals can realize the maximized reproductive success based on current resource. During the process of birds' reproductive, in order to maxmize the fitness each other, the conflict between parental and offspring was called parental-offspring conflict. As the most important component of the theory of parental-offspring conflict, what a kind of parental investment strategy used by parents and sibling rivalry are the research focus in Behavior Ecology and Sociobiology. This proposal will focus on the life history traits especially the two important aspects in avian behavior ecology, parental investment strategy and sibling rivalry pattern of Plain laughing thrushes (Garrulax davidi), a mid-sized babbler endemic to China, under the cold and high altitude environment on the east edge of Tibetan Plateau. It aims to examine:1) parental clutch size strategy, 2) parental incubation behaviors, 3) effects of asynchronous hatching on the within-brood size hierarchy, 4) nestling growth patterns, 5) relationship between parental care and paternity assurement, 6) parental investment strategy and sibling rivalry. Furthermore
英文关键词: Plain Laughingthrush; Garrulax davidi;life history;parental feeding strategy;parent-offspring conflict;sibling competition