How and why do female lizards manipulate the sex and size of their offspring

雌性蜥蜴如何以及为何控制后代的性别和大小

• 批准号: ARC : DP0211364
• 负责人: Erik Wapstra
• 金额: $ 2.5万
• 依托单位: Macquarie University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/how-female-lizards-size-offspring/70026
• 关键词: How; why; do; female; lizards

How and why do female lizards manipulate the sex and size of their offspring. Mathematical models suggest that reproducing females may be able to enhance their evolutionary fitness by modifying the relative allocation of resources to sons versus daughters. This project uses a model reptile system and an integrated series of experimental and field studies to examine patterns of maternal allocation to sons versus daughters and differential male and female offspring fitness in a range of environments. This study will provide robust tests of adaptationist hypotheses from sex-allocation theory and provide quantitative data necessary to understand the evolution of sex-determination systems in reptiles.

雌性蜥蜴如何以及为什么要控制后代的性别和大小。数学模型表明，繁殖的雌性可能能够通过改变资源分配给儿子和女儿的相对比例来增强它们的进化适应性。该项目使用一个模型爬行动物系统和一系列综合的实验和实地研究，以检查模式的母亲分配给儿子与女儿和不同的男性和女性后代的健身在一系列的环境。这项研究将提供强大的测试适应假说的性别分配理论，并提供必要的定量数据，以了解爬行动物性别决定系统的进化。