POWRE: Parentage and Male Parental Effort in a Species With Alternative Reproductive Opportunities

POWRE：具有替代生殖机会的物种中的亲子关系和雄性父母的努力

• 批准号: 9805973
• 负责人: Linda Whittingham
• 金额: $ 4.88万
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-01 至 2001-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9805973&HistoricalAwards=false
• 关键词: POWRE; Parentage; Male; Parental; Effort

NONTECHNICAL ABSTRACT Proposal Number: 9805973 PI: Whittingham, Linda In many animals both the male and female cooperate to raise a family. However, parents may have conflicts of interest over how much parental care each should provide to their young. One source of conflict arises when males are not the genetic fathers (sires) of the young for which they are caring. Such cases occur often in birds because females of many species will mate with males other than their social partner. Should males decrease their parental effort when they are raising offspring that are not their own, and if so, how much? This pilot study will allow Whittingham to pursue this question in a new and exciting model system (house wrens), and to develop new molecular methods of paternity analysis that are necessary for the expansion of her research. This project also will provide research experience and training in modern genetic techniques for undergraduate and graduate students. Recent theory suggest that males may adjust their parental effort in relation to their paternity (the number of young sired) under some conditions, but not others. House wrens provide a model system to examine the factors that influence why parents may or may not cooperate to raise young. These factors include the ability of males to assess their paternity and the availability of mating opportunities with other females. This project will result in a better understanding of the basic principles underlying parental decision-making. In addition it provides integrated training in both field and genetic methods for young scientists.

非技术性摘要 提案编号：9805973 PI：Whittingham，Linda 在许多动物中，雄性和雌性合作养育家庭。然而，父母可能会在各自应该为孩子提供多少照顾方面存在利益冲突。 当雄性不是它们所照顾的后代的遗传父亲（父亲）时，就会出现冲突的根源之一。 这种情况经常发生在鸟类中，因为许多物种的雌性会与社会伙伴以外的雄性交配。当雄性抚养不属于自己的后代时，是否应该减少父母的努力？如果是，减少多少？ 这项试点研究将使惠廷厄姆能够在一个令人兴奋的新模型系统（鹪鹩）中探索这个问题，并开发新的亲子关系分析分子方法，这对于扩大她的研究是必要的。该项目还将为本科生和研究生提供现代遗传技术的研究经验和培训。 最近的理论表明，在某些情况下，雄性可能会根据其父系（后代的数量）来调整养育子女的努力，但在其他情况下则不然。 家鹪鹩提供了一个模型系统来研究影响父母可能或不合作抚养幼崽的因素。 这些因素包括雄性评估其亲子关系的能力以及与其他雌性交配机会的可用性。 该项目将使人们更好地理解父母决策的基本原则。 此外，它还为年轻科学家提供现场和遗传方法方面的综合培训。